From jose@calhariz.com Sun Nov 1 09:10:50 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A5E8A7F54 for ; Sun, 1 Nov 2015 09:10:50 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1F0B9AC003 for ; Sun, 1 Nov 2015 07:10:49 -0800 (PST) X-ASG-Debug-ID: 1446390645-04cb6c7b8618d200001-NocioJ Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by cuda.sgi.com with ESMTP id f7FlQbuUi0bf2u7f (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Sun, 01 Nov 2015 07:10:45 -0800 (PST) X-Barracuda-Envelope-From: jose@calhariz.com X-Barracuda-Apparent-Source-IP: 217.70.183.194 Received: from mfilter27-d.gandi.net (mfilter27-d.gandi.net [217.70.178.155]) by relay2-d.mail.gandi.net (Postfix) with ESMTP id 91DBEC5A40 for ; Sun, 1 Nov 2015 16:10:44 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at mfilter27-d.gandi.net Received: from relay2-d.mail.gandi.net ([IPv6:::ffff:217.70.183.194]) by mfilter27-d.gandi.net (mfilter27-d.gandi.net [::ffff:10.0.15.180]) (amavisd-new, port 10024) with ESMTP id EXzpSEy0YG4p for ; Sun, 1 Nov 2015 16:10:43 +0100 (CET) X-Originating-IP: 31.51.17.90 Received: from [192.168.1.1] (host31-51-17-90.range31-51.btcentralplus.com [31.51.17.90]) (Authenticated sender: jose@calhariz.com) by relay2-d.mail.gandi.net (Postfix) with ESMTPSA id F3D88C5A44 for ; Sun, 1 Nov 2015 16:10:42 +0100 (CET) Message-ID: <56362B71.4070709@calhariz.com> Date: Sun, 01 Nov 2015 15:10:41 +0000 From: Jose M Calhariz User-Agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:31.0) Gecko/20100101 Icedove/31.8.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Problems compiling xfsdump on Debian unstable Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="qVsehd3HWmHQjmB5FRtOvcxXR3p8hVJ7M" X-ASG-Orig-Subj: Problems compiling xfsdump on Debian unstable X-Barracuda-Connect: relay2-d.mail.gandi.net[217.70.183.194] X-Barracuda-Start-Time: 1446390645 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24009 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --qVsehd3HWmHQjmB5FRtOvcxXR3p8hVJ7M Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable I am trying to compile the latest xfsdump from the git repository. While I can compile it on Debian stable (jessie) and testing(stretch), I have problems compiling it on Debian unstable.=20 I think the problem is because of new software on Debian unstable. One fragment of the errors that I get when linking the .o files: cldmgr.o: In function `cldmgr_create': /home/cal/source.xfsdump/git-xfsdump/dump/cldmgr.c:82: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/cldmgr.c:101: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/cldmgr.c:86: undefined reference to `_' content_common.o: In function `Media_prompt_change': /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:65: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:69: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:74: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:80: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:83: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:85: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:86: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:106: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:112: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:117: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:121: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:108: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:109: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:112: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:117: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/content_common.c:121: undefined reference to `assert' dlog.o: In function `dlog_string_query_print': /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:362: undefined reference to `assert' dlog.o: In function `promptinput': /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:508: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:486: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:503: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:513: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:499: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:490: undefined reference to `_' dlog.o: In function `dlog_init': /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:60: undefined reference to `assert' dlog.o: In function `dlog_multi_query': /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:189: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:221: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:257: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:213: undefined reference to `_' dlog.o: In function `dlog_string_query': /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:298: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/dlog.c:310: undefined reference to `_' drive.o: In function `drive_alloc': /home/cal/source.xfsdump/git-xfsdump/dump/drive.c:359: undefined reference to `assert' drive.o: In function `drive_init1': /home/cal/source.xfsdump/git-xfsdump/dump/drive.c:91: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/drive.c:145: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/drive.c:218: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/drive.c:223: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/drive.c:172: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/drive.c:186: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/drive.c:110: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/drive.c:155: undefined reference to `_' /home/cal/source.xfsdump/git-xfsdump/dump/drive.c:132: undefined reference to `_' drive.o: In function `drive_allochdrs': /home/cal/source.xfsdump/git-xfsdump/dump/drive.c:414: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/drive.c:400: undefined reference to `assert' drive_scsitape.o: In function `do_get_align_cnt': /home/cal/source.xfsdump/git-xfsdump/dump/drive_scsitape.c:2132: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/drive_scsitape.c:2133: undefined reference to `assert' /home/cal/source.xfsdump/git-xfsdump/dump/drive_scsitape.c:2134: undefined reference to `assert' Software on testing that may makes a difference: gcc --version gcc (Debian 4.9.3-3) 4.9.3 Copyright (C) 2015 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is N= O warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOS= E. dpkg --status xfslibs-dev Package: xfslibs-dev Status: install ok installed Priority: extra Section: libdevel Installed-Size: 80 Maintainer: XFS Development Team Architecture: amd64 Source: xfsprogs Version: 3.2.1 Depends: libc6-dev | libc-dev, uuid-dev, xfsprogs (>=3D 3.0.0) Breaks: xfsprogs (<< 3.0.0) Description: XFS filesystem-specific static libraries and headers On Debian unstable: gcc --version gcc (Debian 5.2.1-23) 5.2.1 20151028 Copyright (C) 2015 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is N= O warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOS= E. 0 2 Dom Nov 01 15:02:32 CWD=3D~/source.xfsdump/git-xfsdump cal@chr-amd64-sid.mccoy[3895]>dpkg --status xfslibs-dev Package: xfslibs-dev Status: install ok installed Priority: extra Section: libdevel Installed-Size: 219 Maintainer: XFS Development Team Architecture: amd64 Source: xfsprogs Version: 4.2.0 Depends: libc6-dev | libc-dev, uuid-dev, xfsprogs (>=3D 3.0.0) Breaks: xfsprogs (<< 3.0.0) Description: XFS filesystem-specific static libraries and headers Why is important to me to compile xfsdump on unstable. Because it was removed from Debian testing and because of that the amanda software was removed too. As the maintainer of amanda for Debian I am doing my best to fix this problem. I am not on the list. Kind regards Jose M Calhariz --qVsehd3HWmHQjmB5FRtOvcxXR3p8hVJ7M Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCAAGBQJWNitxAAoJEDSKd41ohe+PQxUP/20XfbhoDU3l55hYQUm39BuW FPVg1X1wtuGALY2EVQ+75b46VnzJVr8kOIaZaOBiyYOOS+NMr2ZZsJ1W1CwB/rGo k5Pz6VTBijK3b8W9GrX1v3Qm96hEXm4I0uYZum1ZJN7Q0up+aQpuoZZWpOuMXRCt 7/JS4C254pK2YW2hRW6hK4Uz7YhCUJnYCbTEyI0yKgWsj6g4ulycqilK52062NiA vXiSqd8Y/lOQIPfYQKY4C0Zb2n97L47qa1TlfjH4UOfdBEni4Ys7aVehdtnV7KxE J8izGqlcWtZy7beuxEKnxXlY8EKZGNa4giabcRmyt57i1lzLwNC0w77naSBJ7Uuc J3pvy2Rviz6Q8xOLxHUkYcAPp74RoC/UzAj7lgEp6V3ykpwSFyNcXWZt4M/mb1yB SkDHYkDrPkcI9Je2vY+f87XW5bcHyVr0W9Miuub2atnBjlqsJa1V0atJSY/2vKk/ 86gf5DcIqD9wEyhBc1qkyWrIydjwm93kC+3VO1KbyevsBjTyT4RcYLaOj8P9b+ma 63EYL7qiQM9Y6P1Mj2Lz12lc1aSNynYA3SYfW64zbteFgjBzj1D7ca7Np1UavXX4 KyzVOTnfot/Pv6hYZjSjmjG70pxi4rDwy5SGUpstFaLZdf8Y3mXnf+oJsK2GB6vy v36ye3HtfqAXh3y1Cjpc =Slbi -----END PGP SIGNATURE----- --qVsehd3HWmHQjmB5FRtOvcxXR3p8hVJ7M-- From david@fromorbit.com Sun Nov 1 16:34:57 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7F1A77F59 for ; Sun, 1 Nov 2015 16:34:57 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1B02FAC002 for ; Sun, 1 Nov 2015 14:34:53 -0800 (PST) X-ASG-Debug-ID: 1446417286-04bdf0330b1b17c0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id O073XhY0g2Dg8Zaq for ; Sun, 01 Nov 2015 14:34:47 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BnBwCtkjZW/8m/LHlegzuBQqo4Bosuiy+CX4M0BAICgSFNAQEBAQEBgQuENgEBBDocIxAIAxgJJQ8FJQMhE4gvwVgBAQEHAgEgGYYXhUWILIEUBZZDimyCMYF2mkxjhBgqNIV+AQEB Received: from ppp121-44-191-201.lns20.syd7.internode.on.net (HELO dastard) ([121.44.191.201]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 09:04:45 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zt1Cq-0000ZW-Kq; Mon, 02 Nov 2015 09:34:32 +1100 Date: Mon, 2 Nov 2015 09:34:32 +1100 From: Dave Chinner To: Jose M Calhariz Cc: xfs@oss.sgi.com Subject: Re: Problems compiling xfsdump on Debian unstable Message-ID: <20151101223432.GE10656@dastard> X-ASG-Orig-Subj: Re: Problems compiling xfsdump on Debian unstable References: <56362B71.4070709@calhariz.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56362B71.4070709@calhariz.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446417286 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24018 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Nov 01, 2015 at 03:10:41PM +0000, Jose M Calhariz wrote: > I am trying to compile the latest xfsdump from the git repository. > > While I can compile it on Debian stable (jessie) and testing(stretch), I > have problems compiling it on Debian unstable. > I think the problem is because of new software on Debian unstable. Known issue - xfsdump had an unhealthy dependency on the unclean header files that shipped with xfsprogs. We sanitised the xfsprogs headers in 4.2.0, and didn't notice that xfsdump started complaining because my build machine was still using 3.2.4 headers to build xfsdump. I have patches under review to fix the xfsdump problems, I'll be doing a release of it as soon as the review is finished... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Sun Nov 1 17:30:10 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7FCEB7F59 for ; Sun, 1 Nov 2015 17:30:10 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 73186304062 for ; Sun, 1 Nov 2015 15:30:07 -0800 (PST) X-ASG-Debug-ID: 1446420602-04cb6c7b8519b440001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 0qVvIG1CR0LfUR7k for ; Sun, 01 Nov 2015 15:30:03 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CCBgCTnzZW/8m/LHleDoMtgUKqMwEBAwEGiy6LL4YTBAICgSJNAQEBAQEBgQuENQEBAQMBOhwoCwgDGAklDwUlAyEBEhuIDQfBUgEBCAIBIBmGF4VFhEeDZYEUBZZDiA2FEIFhlm+DcmODRlIqNIQ1gUkBAQE Received: from ppp121-44-191-201.lns20.syd7.internode.on.net (HELO dastard) ([121.44.191.201]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 10:00:01 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zt24K-0000e4-IN; Mon, 02 Nov 2015 10:29:48 +1100 Date: Mon, 2 Nov 2015 10:29:48 +1100 From: Dave Chinner To: Ross Zwisler , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox Subject: Re: [RFC 00/11] DAX fsynx/msync support Message-ID: <20151101232948.GF10656@dastard> X-ASG-Orig-Subj: Re: [RFC 00/11] DAX fsynx/msync support References: <1446149535-16200-1-git-send-email-ross.zwisler@linux.intel.com> <20151030035533.GU19199@dastard> <20151030183938.GC24643@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151030183938.GC24643@linux.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446420603 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24021 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Oct 30, 2015 at 12:39:38PM -0600, Ross Zwisler wrote: > On Fri, Oct 30, 2015 at 02:55:33PM +1100, Dave Chinner wrote: > > On Thu, Oct 29, 2015 at 02:12:04PM -0600, Ross Zwisler wrote: > > > This patch series adds support for fsync/msync to DAX. > > > > > > Patches 1 through 8 add various utilities that the DAX code will eventually > > > need, and the DAX code itself is added by patch 9. Patches 10 and 11 are > > > filesystem changes that are needed after the DAX code is added, but these > > > patches may change slightly as the filesystem fault handling for DAX is > > > being modified ([1] and [2]). > > > > > > I've marked this series as RFC because I'm still testing, but I wanted to > > > get this out there so people would see the direction I was going and > > > hopefully comment on any big red flags sooner rather than later. > > > > > > I realize that we are getting pretty dang close to the v4.4 merge window, > > > but I think that if we can get this reviewed and working it's a much better > > > solution than the "big hammer" approach that blindly flushes entire PMEM > > > namespaces [3]. > > > > We need the "big hammer" regardless of fsync. If REQ_FLUSH and > > REQ_FUA don't do the right thing when it comes to ordering journal > > writes against other IO operations, then the filesystems are not > > crash safe. i.e. we need REQ_FLUSH/REQ_FUA to commit all outstanding > > changes back to stable storage, just like they do for existing > > storage.... > > I think that what I've got here (when it's fully working) will protect all the > cases that we need. > > AFAIK there are three ways that data can be written to a PMEM namespace: > > 1) Through the PMEM driver via either pmem_make_request(), pmem_rw_page() or > pmem_rw_bytes(). All of these paths sync the newly written data durably to > media before the I/O completes so they shouldn't have any reliance on > REQ_FUA/REQ_FLUSH. I suspect that not all future pmem devices will use this driver/interface/semantics. Further, REQ_FLUSH/REQ_FUA are more than just "put the data on stable storage" commands. They are also IO barriers that affect scheduling of IOs in progress and in the request queues. A REQ_FLUSH/REQ_FUA IO cannot be dispatched before all prior IO has been dispatched and drained from the request queue, and IO submitted after a queued REQ_FLUSH/REQ_FUA cannot be scheduled ahead of the queued REQ_FLUSH/REQ_FUA operation. IOWs, REQ_FUA/REQ_FLUSH not only guarantee data is on stable storage, they also guarantee the order of IO dispatch and completion when concurrent IO is in progress. > 2) Through the DAX I/O path, dax_io(). As with PMEM we flush the newly > written data durably to media before the I/O operation completes, so this path > shouldn't have any reliance on REQ_FUA/REQ_FLUSH. That's fine, but that's not the problem we need solved ;) > 3) Through mmaps set up by DAX. This is the path we are trying to protect > with the dirty page tracking and flushing in this patch set, and I think that > this is the only path that has reliance on REQ_FLUSH. Quite possibly this is the case for the current intel pmem driver, but I don't look at the functionality from that perspective. Dirty page tracking is needed to enable "data writeback", whether it be CPU cachelines via pcommit() or dirty pages via submit_bio(). How the pages get dirty is irrelevant - the fact is they are dirty and we need to do /something/ to ensure they are correctly written back to the storage layer. REQ_FLUSH is needed to guarantee all data that has been written back to the storage layer is persistent in that layer. How a /driver/ manages that is up to the driver - the actual implementation is irrelevant to the higher layers. i.e. what we are concerned about at the filesystem level is that: a) "data writeback" is started correctly; b) the "data writeback" is completed; and c) volatile caches are completely flushed before we write the metadata changes that reference that data to the journal via FUA e.g. we could have pmem, but we are using buffered IO (i.e. non-DAX) and a hardware driver that doesn't flush CPU cachelines in the physical IO path. This requires that driver to flush CPU cachelines and place memory barriers in REQ_FLUSH operations, as well as after writing the data in REQ_FUA operations. Yes, this is different to the way the intel pmem drivers work (i.e. as noted in 1) above), but it is /not wrong/ as long as REQ_FLUSH/REQ_FUA also flush dirty cpu cachelines. IOWs, the high level code we write that implements fsync for DAX needs to be generic enough so that when something slightly different comes along we don't have to throw everything away and start again. I think your code will end up being generic enough to handle this, but let's make sure we don't implement something that can only work with pmem hardware/drivers that do all IO as fully synchronous to the stable domain... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Sun Nov 1 17:36:53 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8D8277F59 for ; Sun, 1 Nov 2015 17:36:53 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7E8788F8033 for ; Sun, 1 Nov 2015 15:36:50 -0800 (PST) X-ASG-Debug-ID: 1446421006-04cb6c7b8619b680001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id XouhuFOGSgIqb5ey for ; Sun, 01 Nov 2015 15:36:47 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DGBgCHoDZW/8m/LHlegzuBQqozAQEDAQaLLosvhhMCAgEBAoEiTQEBAQEBAYELhDUBAQEDATocIxAIAxgJJQ8FJQMhExuIDQfBSAEBCAIBIBmGF4Q/gQaJQAWWQ4gNhRCcQmOCER2Baio0AYV9AQEB Received: from ppp121-44-191-201.lns20.syd7.internode.on.net (HELO dastard) ([121.44.191.201]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 10:06:45 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zt2Aq-0000fH-HT; Mon, 02 Nov 2015 10:36:32 +1100 Date: Mon, 2 Nov 2015 10:36:32 +1100 From: Dave Chinner To: Dan Williams Cc: Ross Zwisler , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox Subject: Re: [RFC 00/11] DAX fsynx/msync support Message-ID: <20151101233632.GG10656@dastard> X-ASG-Orig-Subj: Re: [RFC 00/11] DAX fsynx/msync support References: <1446149535-16200-1-git-send-email-ross.zwisler@linux.intel.com> <20151030194300.GA22670@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446421006 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24021 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Oct 30, 2015 at 12:51:40PM -0700, Dan Williams wrote: > On Fri, Oct 30, 2015 at 12:43 PM, Ross Zwisler > wrote: > > On Fri, Oct 30, 2015 at 11:34:07AM -0700, Dan Williams wrote: > >> This is great to have when the flush-the-world solution ends up > >> killing performance. However, there are a couple mitigating options > >> for workloads that dirty small amounts and flush often that we need to > >> collect data on: > >> > >> 1/ Using cache management and pcommit from userspace to skip calls to > >> msync / fsync. Although, this does not eliminate all calls to > >> blkdev_issue_flush as the fs may invoke it for other reasons. I > >> suspect turning on REQ_FUA support eliminates a number of those > >> invocations, and pmem already satisfies REQ_FUA semantics by default. > > > > Sure, I'll turn on REQ_FUA in addition to REQ_FLUSH - I agree that PMEM > > already handles the requirements of REQ_FUA, but I didn't realize that it > > might reduce the number of REQ_FLUSH bios we receive. > > I'll let Dave chime in, but a lot of the flush requirements come from > guaranteeing the state of the metadata, if metadata updates can be > done with REQ_FUA then there is no subsequent need to flush. No need for cache flushes in this case, but we still need the IO scheduler to order such operations correctly. > >> 2/ Turn off DAX and use the page cache. As Dave mentions [1] we > >> should enable this control on a per-inode basis. I'm folding in this > >> capability as a blkdev_ioctl for the next version of the raw block DAX > >> support patch. > > > > Umm...I think you just said "the way to avoid this delay is to just not use > > DAX". :) I don't think this is where we want to go - we are trying to make > > DAX better, not abandon it. > > That's a bit of an exaggeration. Avoiding DAX where it is not > necessary is not "abandoning DAX", it's using the right tool for the > job. Page cache is fine for many cases. Think btrfs - any file that uses COW can't use DAX for write. Everything has to be buffered, unless the nodatacow flag is set, and then DAX can be used. Indeed, on ext4 if you are using file encryption you can't use DAX. IOWs, we already know that we have to support mixed DAX/non-DAX access within the same filesystem, so I'm with Dan here... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Sun Nov 1 19:15:06 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id AC5137F59 for ; Sun, 1 Nov 2015 19:15:06 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8CCB38F8033 for ; Sun, 1 Nov 2015 17:15:03 -0800 (PST) X-ASG-Debug-ID: 1446426900-04cb6c7b8619e260001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id u5JPXvsarYSTCbcf for ; Sun, 01 Nov 2015 17:15:01 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DJBgBiuDZW/8m/LHlegzuBQqozAQEDAQaBZolIhSaGCYYTAgIBAQKBIk0BAQEBAQGBC4Q1AQEBAwEnExwjBQsIAw4HAwklDwUlAyETiCgHwUEBCwEgGYYXhUWFBIQ8BZZDjR2cQmOEGCo0hX4BAQE Received: from ppp121-44-191-201.lns20.syd7.internode.on.net (HELO dastard) ([121.44.191.201]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 11:44:46 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zt3hh-0000pM-Hk; Mon, 02 Nov 2015 12:14:33 +1100 Date: Mon, 2 Nov 2015 12:14:33 +1100 From: Dave Chinner To: Brian Foster Cc: ross.zwisler@linux.intel.com, jack@suse.cz, xfs@oss.sgi.com Subject: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Message-ID: <20151102011433.GW19199@dastard> X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX References: <1445225238-30413-1-git-send-email-david@fromorbit.com> <1445225238-30413-4-git-send-email-david@fromorbit.com> <20151029142950.GE11663@bfoster.bfoster> <20151029233756.GS19199@dastard> <20151030123657.GC54905@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151030123657.GC54905@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446426900 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24024 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Oct 30, 2015 at 08:36:57AM -0400, Brian Foster wrote: > On Fri, Oct 30, 2015 at 10:37:56AM +1100, Dave Chinner wrote: > > On Thu, Oct 29, 2015 at 10:29:50AM -0400, Brian Foster wrote: > > > On Mon, Oct 19, 2015 at 02:27:15PM +1100, Dave Chinner wrote: > > > > From: Dave Chinner > > > > > ... > > > > + /* > > > > + * For DAX, we do not allocate unwritten extents, but instead we zero > > > > + * the block before we commit the transaction. Ideally we'd like to do > > > > + * this outside the transaction context, but if we commit and then crash > > > > + * we may not have zeroed the blocks and this will be exposed on > > > > + * recovery of the allocation. Hence we must zero before commit. > > > > + * Further, if we are mapping unwritten extents here, we need to zero > > > > + * and convert them to written so that we don't need an unwritten extent > > > > + * callback for DAX. This also means that we need to be able to dip into > > > > + * the reserve block pool if there is no space left but we need to do > > > > + * unwritten extent conversion. > > > > + */ > > > > + if (IS_DAX(VFS_I(ip))) { > > > > + bmapi_flags = XFS_BMAPI_CONVERT | XFS_BMAPI_ZERO; > > > > + tp->t_flags |= XFS_TRANS_RESERVE; > > > > + } > > > > > > Am I following the commit log description correctly in that block > > > zeroing is only required for DAX faults? Do we zero blocks for DAX DIO > > > as well to be consistent, or is that also required (because it looks > > > like we still have end_io completion for dio writes anyways)? > > > > DAX DIO will do the zeroing rather than using unwritten extents, > > too. But we still have DIO IO completion as that needs to do file > > size updates. > > > > Right, my question is: is the DAX DIO zeroing required to avoid the > races described as the purpose for this patch, or is this just here as a > simplification? In other words, why not do block zeroing only for DAX > faults and not DAX/DIO? Because the only reason the DIO code does 'allocate unwritten; convert unwritten on IO completion' is so that if we have: allocate trans_commit .... log force journal IO submit .... journal IO completion submit data io crash We don't expose allocated blocks containing stale data to userspace via recovery. The allcoation uses unwritten extents to ensure that if the allocation is recovered without the correspending completion, it reads as zeros rather whatever was previously on disk in taht location. For DAX, we can zero the blocks inside the allocation transaction for direct IO, and hence even if we have the above happen, we'll only ever expose zeros. Hence we don't need unwritten extents in the DIO path to avoid stale data exposure, and so we can simply avoid all that extra overhead of unwritten extent conversion on completion... > I ask because my understanding is the purpose of this patch is a special > atomic zeroed allocation requirement just for mmap. The requirement is set by DAX+mmap; the implementation is a generic "allocate zeroed blocks" mechanism that can be applied to any allocation that uses unwritten extents to allocate zeroed blocks if zeroing is more efficient than using unwritten extents.... > Unless there is some > special mixed dio/mmap case I'm missing, doing so for DAX/DIO basically > causes a clear_pmem() over every page sized chunk of the target I/O > range for which we already have the data. I don't follow - this only zeros blocks when we do allocation of new blocks or overwrite unwritten extents, not on blocks which we already have written data extents allocated for... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Sun Nov 1 19:21:51 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DE51B7F59 for ; Sun, 1 Nov 2015 19:21:51 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id CEB2A304032 for ; Sun, 1 Nov 2015 17:21:48 -0800 (PST) X-ASG-Debug-ID: 1446427305-04cb6c7b8719e4d0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id K7jBJMRLuMs5Awhz for ; Sun, 01 Nov 2015 17:21:46 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DbBgBiuTZW/8m/LHlegzuBAEKqMwEBAwEGiy6FJoYJhhMCAgEBAoEiTQEBAQEBAYELhDUBAQEEOhwjEAgDDgcDCSUPBSUDIROIL8FAAQEIAgEgGYYXhUWJQAWWQ40djy+NE2OEGCo0hX4BAQE Received: from ppp121-44-191-201.lns20.syd7.internode.on.net (HELO dastard) ([121.44.191.201]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 11:51:44 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zt3oS-0000qD-55; Mon, 02 Nov 2015 12:21:32 +1100 Date: Mon, 2 Nov 2015 12:21:32 +1100 From: Dave Chinner To: Brian Foster Cc: ross.zwisler@linux.intel.com, jack@suse.cz, xfs@oss.sgi.com Subject: Re: [PATCH 2/6] xfs: introduce BMAPI_ZERO for allocating zeroed extents Message-ID: <20151102012132.GX19199@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/6] xfs: introduce BMAPI_ZERO for allocating zeroed extents References: <1445225238-30413-1-git-send-email-david@fromorbit.com> <1445225238-30413-3-git-send-email-david@fromorbit.com> <20151029142757.GD11663@bfoster.bfoster> <20151029233548.GR19199@dastard> <20151030123608.GB54905@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151030123608.GB54905@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446427305 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24024 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Oct 30, 2015 at 08:36:08AM -0400, Brian Foster wrote: > On Fri, Oct 30, 2015 at 10:35:48AM +1100, Dave Chinner wrote: > > On Thu, Oct 29, 2015 at 10:27:58AM -0400, Brian Foster wrote: > > > On Mon, Oct 19, 2015 at 02:27:14PM +1100, Dave Chinner wrote: > > > > From: Dave Chinner > > > > > ... > > > > > I suspect there's no use case to pass XFS_BMAPI_ZERO for new unwritten > > > allocations, but if the flag is passed, doesn't this cause duplicate > > > block zeroing? > > > > It probably would, but.... > > > > > Perhaps we should drop the zero flag from 'flags' after > > > allocation in xfs_bmapi_write() just to ensure this executes in one > > > place or the other..? > > > > I think that if we hit this, we're doing something else wrong - why > > would we allocate unwritten extents and still need to initialise > > them to zero? > > > > No idea, really (as noted above). ;) It just looked like it could be > invoked twice per bmapi call, nothing else I saw prevented it, and it > looks easily avoidable. Maybe somebody down the road decides to turn on > block zeroing unconditionally in the block allocator due to hardware > support or some such. Or maybe we'll never hit the problem. The point is > that this code will inevitably be modified/enhanced down the road and > nobody is going to remember that the zeroing is invoked twice in a > particular prealloc codepath. > > If we don't want to mess with the flags, how about an assert somewhere > so it's explicit the bmapi implementation doesn't expect this > combination of flags? Easy enough. I'll add this to the initial asserts in xfs_bmapi_write(): + /* + * we can allocate unwritten extents or pre-zero allocated blocks, + * but it makes no sense to do both at once. This would result in + * zeroing the unwritten extent twice, but it still being an + * unwritten extent.... + */ + ASSERT((flags & (XFS_BMAPI_PREALLOC|XFS_BMAPI_ZERO)) != + (XFS_BMAPI_PREALLOC|XFS_BMAPI_ZERO)); Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Sun Nov 1 20:54:26 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 746877F62 for ; Sun, 1 Nov 2015 20:54:26 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 52FB1304053 for ; Sun, 1 Nov 2015 18:54:23 -0800 (PST) X-ASG-Debug-ID: 1446432859-04cb6c7b851a0b80001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id Bt675rBTHykwyiw7 for ; Sun, 01 Nov 2015 18:54:19 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CDBgDYzzZW/+rW03ZegzuBQqo4AQEDAQaLLoUmhgmGEwQCAoEkTQEBAQEBAYELhDUBAQEDATocIwULCAMOCgklDwUlAyETiCgHwTEBAQgCIRmGF4VFiUAFlkONHYFhhD+HNI5uY4IRHYFqKjSENiWBIwEBAQ Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 13:24:05 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zt5Fo-0000yd-AN; Mon, 02 Nov 2015 13:53:52 +1100 Date: Mon, 2 Nov 2015 13:53:52 +1100 From: Dave Chinner To: Andreas Gruenbacher Cc: Brian Foster , xfs@oss.sgi.com Subject: Re: [PATCH v2 0/5] xfs: SGI ACL Fixes Message-ID: <20151102025352.GY19199@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 0/5] xfs: SGI ACL Fixes References: <1446217508-22157-1-git-send-email-agruenba@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1446217508-22157-1-git-send-email-agruenba@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446432859 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24026 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Oct 30, 2015 at 04:05:03PM +0100, Andreas Gruenbacher wrote: > Here is a reworked patch queue that also handles setting SGI_ACL_{FILE,DEFAULT} > via XFS_IOC_ATTRMULTI_BY_HANDLE. Please review. > > Thanks, > Andreas > > Andreas Gruenbacher (5): > xfs: Validate the length of on-disk ACLs > xfs: Plug memory leak in xfs_attrmulti_attr_set Ok, I've taken these two patches for the upcoming merge window as they fix bugs, but I've taken Brian's cached ACL invalidation patch instead of these: > xfs: SGI ACLs: Fix caching and mode setting > xfs: Add namespace parameter to the xfs kuid/kgid <=> uid/gid wrappers > xfs: SGI ACLs: Map uid/gid namespaces I'm not yet convinced that these patches are the right way to solve the given issue as they may interact badly with xfsdump/restore. However, I do want the kernel code to behave correctly after xfs_restore runs and Brian's change is enough to do this. If we do decide that we need to make the above changes to the posix acl code, it's easy enough to replace this invalidation code. Cheers, Dave. -- Dave Chinner david@fromorbit.com From nscott@redhat.com Sun Nov 1 21:26:11 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 32C397F53 for ; Sun, 1 Nov 2015 21:26:11 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id C0881AC001 for ; Sun, 1 Nov 2015 19:26:07 -0800 (PST) X-ASG-Debug-ID: 1446434765-04cbb0660e1b3e60001-NocioJ Received: from mx3-phx2.redhat.com (mx3-phx2.redhat.com [209.132.183.24]) by cuda.sgi.com with ESMTP id HarF4HafDwsoZpNJ (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sun, 01 Nov 2015 19:26:05 -0800 (PST) X-Barracuda-Envelope-From: nscott@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.24 Received: from zmail20.collab.prod.int.phx2.redhat.com (zmail20.collab.prod.int.phx2.redhat.com [10.5.83.23]) by mx3-phx2.redhat.com (8.13.8/8.13.8) with ESMTP id tA23PxXO007512; Sun, 1 Nov 2015 22:25:59 -0500 Date: Sun, 1 Nov 2015 22:25:58 -0500 (EST) From: Nathan Scott Reply-To: Nathan Scott To: Jose M Calhariz Cc: xfs@oss.sgi.com Message-ID: <1847596501.219026.1446434758818.JavaMail.zimbra@redhat.com> In-Reply-To: <56362B71.4070709@calhariz.com> References: <56362B71.4070709@calhariz.com> Subject: Re: Problems compiling xfsdump on Debian unstable MIME-Version: 1.0 X-ASG-Orig-Subj: Re: Problems compiling xfsdump on Debian unstable Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.64.50.239] X-Mailer: Zimbra 8.0.6_GA_5922 (ZimbraWebClient - FF37 (Linux)/8.0.6_GA_5922) Thread-Topic: Problems compiling xfsdump on Debian unstable Thread-Index: h43CLwGEPeFEPk41rTd5trB+BciaTg== X-Barracuda-Connect: mx3-phx2.redhat.com[209.132.183.24] X-Barracuda-Start-Time: 1446434765 X-Barracuda-Encrypted: DHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.02 X-Barracuda-Spam-Status: No, SCORE=0.02 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=THREAD_INDEX, THREAD_TOPIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24026 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... Hi Jose, ----- Original Message ----- > I am trying to compile the latest xfsdump from the git repository. The underlying problem was related to changes in xfsprogs header files which had unanticipated dependencies in xfsdump - Dave has been working through all these issues (iow, removing the unanticipated dependencies, by updating xfsdump code) and the next release of xfsdump will resolve this build failure. It's not a trivial change though, so our best bet (IMO) is to wait on those upstream changes from Dave and then get a new package build into unstable & testing. cheers. -- Nathan From agruenba@redhat.com Sun Nov 1 21:41:35 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1EF127F5E for ; Sun, 1 Nov 2015 21:41:35 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9E142AC002 for ; Sun, 1 Nov 2015 19:41:34 -0800 (PST) X-ASG-Debug-ID: 1446435690-04cbb0660c1b4510001-NocioJ Received: from mail-lf0-f48.google.com (mail-lf0-f48.google.com [209.85.215.48]) by cuda.sgi.com with ESMTP id EKVUbQRPdcEvQMbA (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sun, 01 Nov 2015 19:41:31 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.215.48 Received: by lfgh9 with SMTP id h9so9431352lfg.1 for ; Sun, 01 Nov 2015 19:41:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=PggG/W8oWZzrjgc+fiyGK62ciddT7QbaXDXHAw3wk/4=; b=k4uLjHf6V7hrHnjhYdRUZ5mC+w3YB9NxqilfFTsqGrCjy1HNGlzIPwpxrp0uEb5zbU yg+Zopt6Dq+0ogcCa5q4yrDKh8hTi5bxeA4vGWX+bVkPpoLqRj4wkfMKLZNN/IHqVZT1 d2NIvP4HU+56QkQjMeKZ0qYdnGD6IFM7Ov6S05SPcDd+l+64otfviYz97ewayZ0aAC1u zb8f43Uo3h9jnrqq+nJ5Q2qBCLf6IQ2kcT5qVbG5kSlBvTIm8GGky2ZwI2pDzpWMBos5 A52x+8bXVhAV+RXZPzhjXlC61PZ2pcOFzXCrd2eFSImPsj9r9YESkgjWDQWtDm0CY4sL XbBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=PggG/W8oWZzrjgc+fiyGK62ciddT7QbaXDXHAw3wk/4=; b=l/H3G6RYozu/aUo+hCJaDG/lHWx/1mUeSKgo7eX5oN8GF8NubGXsjch5Xi9gzpyyYE Fp02XF9KuoBbIhHDdOSLOYF2ockzmKnZIk0fMhSKtvI6DAO2Fxt3S02lKriQqxP7T19+ 7poBMttMPBMatP16SWtNc5xwgKh7NgPCiWjw4FehTMNlaw+tgiigPS8/qdBqK9E7x5if N/TsvhTiEqksxGueudN9JjMYCtq8ag2sA9qALImHhHBdYQ2GADe44LvgvSp1/6K4kEMk BdqNncZ/zE0h3fxuf/iADDrzvLceS+HvTTKJBsAkZmmuh4tCFk53sAqqTkYvsC+f4QJq 0/dg== X-Gm-Message-State: ALoCoQljZm9NqrrerIZkysY5OqkYFwBKuNZZHd5uY6Go5wMtil1pqDKZ2JXcm1s4Q3uuW+B5dHLB MIME-Version: 1.0 X-Received: by 10.25.144.143 with SMTP id s137mr5991608lfd.116.1446435690283; Sun, 01 Nov 2015 19:41:30 -0800 (PST) Received: by 10.112.53.42 with HTTP; Sun, 1 Nov 2015 19:41:30 -0800 (PST) In-Reply-To: <20151102025352.GY19199@dastard> References: <1446217508-22157-1-git-send-email-agruenba@redhat.com> <20151102025352.GY19199@dastard> Date: Mon, 2 Nov 2015 04:41:30 +0100 Message-ID: Subject: Re: [PATCH v2 0/5] xfs: SGI ACL Fixes From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v2 0/5] xfs: SGI ACL Fixes To: Dave Chinner Cc: Brian Foster , xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lf0-f48.google.com[209.85.215.48] X-Barracuda-Start-Time: 1446435691 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24026 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Mon, Nov 2, 2015 at 3:53 AM, Dave Chinner wrote: > On Fri, Oct 30, 2015 at 04:05:03PM +0100, Andreas Gruenbacher wrote: >> Here is a reworked patch queue that also handles setting SGI_ACL_{FILE,DEFAULT} >> via XFS_IOC_ATTRMULTI_BY_HANDLE. Please review. >> >> Thanks, >> Andreas >> >> Andreas Gruenbacher (5): >> xfs: Validate the length of on-disk ACLs >> xfs: Plug memory leak in xfs_attrmulti_attr_set > > Ok, I've taken these two patches for the upcoming merge window as > they fix bugs, but I've taken Brian's cached ACL invalidation patch > instead of these: > >> xfs: SGI ACLs: Fix caching and mode setting >> xfs: Add namespace parameter to the xfs kuid/kgid <=> uid/gid wrappers >> xfs: SGI ACLs: Map uid/gid namespaces > > I'm not yet convinced that these patches are the right way to solve > the given issue as they may interact badly with xfsdump/restore. Well, what else do you need to be convinced? I guess it won't help if I try to explain everything all over again? Thanks, Andreas From dave@fromorbit.com Sun Nov 1 21:42:40 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 929247F5F for ; Sun, 1 Nov 2015 21:42:40 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7159F8F8033 for ; Sun, 1 Nov 2015 19:42:40 -0800 (PST) X-ASG-Debug-ID: 1446435757-04cbb0660c1b4570001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id HGe8CGChCfG8fEae for ; Sun, 01 Nov 2015 19:42:38 -0800 (PST) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2B5BgBt2jZW/+rW03ZegzuBQqo5AQEBAQEBBpBUjCKBJ00BAQEBAQGBC4Q2AQUnLzMIGDE5AxsZiC/BWYYwikmEPAWHRY5+jn6SD4hSY4FKAQs7HYFqKjSFfgEBAQ Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 14:12:35 +1030 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1Zt60k-00014n-9D for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 Received: from dave by disappointment with local (Exim 4.86) (envelope-from ) id 1Zt60k-0000SQ-8P for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 4/7] xfs: DAX does not use IO completion callbacks Date: Mon, 2 Nov 2015 14:42:12 +1100 X-ASG-Orig-Subj: [PATCH 4/7] xfs: DAX does not use IO completion callbacks Message-Id: <1446435735-1526-5-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1446435735-1526-1-git-send-email-david@fromorbit.com> References: <1446435735-1526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446435757 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24026 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner For DAX, we are now doing block zeroing during allocation. This means we no longer need a special DAX fault IO completion callback to do unwritten extent conversion. Because mmap never extends the file size (it SEGVs the process) we don't need a callback to update the file size, either. Hence we can remove the completion callbacks from the __dax_fault and __dax_mkwrite calls. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Signed-off-by: Dave Chinner --- fs/xfs/xfs_aops.c | 39 --------------------------------------- fs/xfs/xfs_aops.h | 1 - fs/xfs/xfs_file.c | 5 ++--- 3 files changed, 2 insertions(+), 43 deletions(-) diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 7b4f849..29e7e5d 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -1666,45 +1666,6 @@ xfs_end_io_direct_write( __xfs_end_io_direct_write(inode, ioend, offset, size); } -/* - * For DAX we need a mapping buffer callback for unwritten extent conversion - * when page faults allocate blocks and then zero them. Note that in this - * case the mapping indicated by the ioend may extend beyond EOF. We most - * definitely do not want to extend EOF here, so we trim back the ioend size to - * EOF. - */ -#ifdef CONFIG_FS_DAX -void -xfs_end_io_dax_write( - struct buffer_head *bh, - int uptodate) -{ - struct xfs_ioend *ioend = bh->b_private; - struct inode *inode = ioend->io_inode; - ssize_t size = ioend->io_size; - - ASSERT(IS_DAX(ioend->io_inode)); - - /* if there was an error zeroing, then don't convert it */ - if (!uptodate) - ioend->io_error = -EIO; - - /* - * Trim update to EOF, so we don't extend EOF during unwritten extent - * conversion of partial EOF blocks. - */ - spin_lock(&XFS_I(inode)->i_flags_lock); - if (ioend->io_offset + size > i_size_read(inode)) - size = i_size_read(inode) - ioend->io_offset; - spin_unlock(&XFS_I(inode)->i_flags_lock); - - __xfs_end_io_direct_write(inode, ioend, ioend->io_offset, size); - -} -#else -void xfs_end_io_dax_write(struct buffer_head *bh, int uptodate) { } -#endif - static inline ssize_t xfs_vm_do_dio( struct inode *inode, diff --git a/fs/xfs/xfs_aops.h b/fs/xfs/xfs_aops.h index d39ba25..f6ffc9a 100644 --- a/fs/xfs/xfs_aops.h +++ b/fs/xfs/xfs_aops.h @@ -60,7 +60,6 @@ int xfs_get_blocks_direct(struct inode *inode, sector_t offset, struct buffer_head *map_bh, int create); int xfs_get_blocks_dax_fault(struct inode *inode, sector_t offset, struct buffer_head *map_bh, int create); -void xfs_end_io_dax_write(struct buffer_head *bh, int uptodate); extern void xfs_count_page_state(struct page *, int *, int *); diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 7f873bc..403151a 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1508,8 +1508,7 @@ xfs_filemap_page_mkwrite( xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED); if (IS_DAX(inode)) { - ret = __dax_mkwrite(vma, vmf, xfs_get_blocks_dax_fault, - xfs_end_io_dax_write); + ret = __dax_mkwrite(vma, vmf, xfs_get_blocks_dax_fault, NULL); } else { ret = __block_page_mkwrite(vma, vmf, xfs_get_blocks); ret = block_page_mkwrite_return(ret); @@ -1571,7 +1570,7 @@ xfs_filemap_pmd_fault( file_update_time(vma->vm_file); xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED); ret = __dax_pmd_fault(vma, addr, pmd, flags, xfs_get_blocks_dax_fault, - xfs_end_io_dax_write); + NULL); xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED); sb_end_pagefault(inode->i_sb); -- 2.5.0 From dave@fromorbit.com Sun Nov 1 21:42:41 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 17BDF7F61 for ; Sun, 1 Nov 2015 21:42:41 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id E97178F8033 for ; Sun, 1 Nov 2015 19:42:37 -0800 (PST) X-ASG-Debug-ID: 1446435755-04cbb0660d1b4570001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id ObaicWbNqaCmjGKz for ; Sun, 01 Nov 2015 19:42:35 -0800 (PST) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2B1BgBt2jZW/+rW03ZegzurewEBAQEBAQaQVI1JTQEBAQEBAYELhRI7gQIDiGOgaKBxhjCKb4QWBZZDqV9jgUoBAQgBAQEBgkAqhjIBAQE Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 14:12:35 +1030 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1Zt60k-00014j-7N for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 Received: from dave by disappointment with local (Exim 4.86) (envelope-from ) id 1Zt60k-0000S7-6O for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 0/7] xfs: patches remaining for 4.4 merge window Date: Mon, 2 Nov 2015 14:42:08 +1100 X-ASG-Orig-Subj: [PATCH 0/7] xfs: patches remaining for 4.4 merge window Message-Id: <1446435735-1526-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.5.0 X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446435755 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24026 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi folks, These are the outstanding patches I have for the 4.4 ,erge window. It is effectively v3 of the DAX block zeroing patch set - this version fixes the issues brian found, and marks all the unmodified reviewed patches as such. The final patch is also the fdatasync optimisation patch that Brain noticed a race condition in. It has the fix I mentioned in the review thread in it and it still works just fine. I'll merge these into the for-next branch as soon as reviews come through with an eye to sending Linus a pull request early next week. -Dave. From dave@fromorbit.com Sun Nov 1 21:42:41 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1FCFC7F62 for ; Sun, 1 Nov 2015 21:42:41 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 93000AC001 for ; Sun, 1 Nov 2015 19:42:40 -0800 (PST) X-ASG-Debug-ID: 1446435755-04cbb0660d1b4570002-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id hrLUtXFNzNmoPCcy for ; Sun, 01 Nov 2015 19:42:37 -0800 (PST) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BCBwBt2jZW/+rW03Zegzt/AUKqOQEBAQEBAQaQVIwigSdNAQEBAQEBgQuENgEFJy8zCBgxOQMbGRmIFsFZhjCKSYQ8BZZDjn6HY4VrhEGIUmOBSgELOAMdgWoqNIV+AQEB Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 14:12:35 +1030 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1Zt60k-00014k-7q for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 Received: from dave by disappointment with local (Exim 4.86) (envelope-from ) id 1Zt60k-0000SA-74 for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 1/7] xfs: fix inode size update overflow in xfs_map_direct() Date: Mon, 2 Nov 2015 14:42:09 +1100 X-ASG-Orig-Subj: [PATCH 1/7] xfs: fix inode size update overflow in xfs_map_direct() Message-Id: <1446435735-1526-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1446435735-1526-1-git-send-email-david@fromorbit.com> References: <1446435735-1526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446435757 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24026 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Both direct IO and DAX pass an offset and count into get_blocks that will overflow a s64 variable when an IO goes into the last supported block in a file (i.e. at offset 2^63 - 1FSB bytes). This can be seen from the tracing: xfs_get_blocks_alloc: [...] offset 0x7ffffffffffff000 count 4096 xfs_gbmap_direct: [...] offset 0x7ffffffffffff000 count 4096 xfs_gbmap_direct_none:[...] offset 0x7ffffffffffff000 count 4096 0x7ffffffffffff000 + 4096 = 0x8000000000000000, and hence that overflows the s64 offset and we fail to detect the need for a filesize update and an ioend is not allocated. This is *mostly* avoided for direct IO because such extending IOs occur with full block allocation, and so the "IS_UNWRITTEN()" check still evaluates as true and we get an ioend that way. However, doing single sector extending IOs to this last block will expose the fact that file size updates will not occur after the first allocating direct IO as the overflow will then be exposed. There is one further complexity: the DAX page fault path also exposes the same issue in block allocation. However, page faults cannot extend the file size, so in this case we want to allocate the block but do not want to allocate an ioend to enable file size update at IO completion. Hence we now need to distinguish between the direct IO patch allocation and dax fault path allocation to avoid leaking ioend structures. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Signed-off-by: Dave Chinner --- fs/xfs/xfs_aops.c | 50 ++++++++++++++++++++++++++++++++++++++++++++------ fs/xfs/xfs_aops.h | 2 ++ fs/xfs/xfs_file.c | 6 +++--- 3 files changed, 49 insertions(+), 9 deletions(-) diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index e4fff58..366e41eb 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -1259,13 +1259,28 @@ xfs_vm_releasepage( * the DIO. There is only going to be one reference to the ioend and its life * cycle is constrained by the DIO completion code. hence we don't need * reference counting here. + * + * Note that for DIO, an IO to the highest supported file block offset (i.e. + * 2^63 - 1FSB bytes) will result in the offset + count overflowing a signed 64 + * bit variable. Hence if we see this overflow, we have to assume that the IO is + * extending the file size. We won't know for sure until IO completion is run + * and the actual max write offset is communicated to the IO completion + * routine. + * + * For DAX page faults, we are preparing to never see unwritten extents here, + * nor should we ever extend the inode size. Hence we will soon have nothing to + * do here for this case, ensuring we don't have to provide an IO completion + * callback to free an ioend that we don't actually need for a fault into the + * page at offset (2^63 - 1FSB) bytes. */ + static void xfs_map_direct( struct inode *inode, struct buffer_head *bh_result, struct xfs_bmbt_irec *imap, - xfs_off_t offset) + xfs_off_t offset, + bool dax_fault) { struct xfs_ioend *ioend; xfs_off_t size = bh_result->b_size; @@ -1278,6 +1293,16 @@ xfs_map_direct( trace_xfs_gbmap_direct(XFS_I(inode), offset, size, type, imap); + /* XXX: preparation for removing unwritten extents in DAX */ +#if 0 + if (dax_fault) { + ASSERT(type == XFS_IO_OVERWRITE); + trace_xfs_gbmap_direct_none(XFS_I(inode), offset, size, type, + imap); + return; + } +#endif + if (bh_result->b_private) { ioend = bh_result->b_private; ASSERT(ioend->io_size > 0); @@ -1292,7 +1317,8 @@ xfs_map_direct( ioend->io_size, ioend->io_type, imap); } else if (type == XFS_IO_UNWRITTEN || - offset + size > i_size_read(inode)) { + offset + size > i_size_read(inode) || + offset + size < 0) { ioend = xfs_alloc_ioend(inode, type); ioend->io_offset = offset; ioend->io_size = size; @@ -1354,7 +1380,8 @@ __xfs_get_blocks( sector_t iblock, struct buffer_head *bh_result, int create, - bool direct) + bool direct, + bool dax_fault) { struct xfs_inode *ip = XFS_I(inode); struct xfs_mount *mp = ip->i_mount; @@ -1467,7 +1494,8 @@ __xfs_get_blocks( set_buffer_unwritten(bh_result); /* direct IO needs special help */ if (create && direct) - xfs_map_direct(inode, bh_result, &imap, offset); + xfs_map_direct(inode, bh_result, &imap, offset, + dax_fault); } /* @@ -1514,7 +1542,7 @@ xfs_get_blocks( struct buffer_head *bh_result, int create) { - return __xfs_get_blocks(inode, iblock, bh_result, create, false); + return __xfs_get_blocks(inode, iblock, bh_result, create, false, false); } int @@ -1524,7 +1552,17 @@ xfs_get_blocks_direct( struct buffer_head *bh_result, int create) { - return __xfs_get_blocks(inode, iblock, bh_result, create, true); + return __xfs_get_blocks(inode, iblock, bh_result, create, true, false); +} + +int +xfs_get_blocks_dax_fault( + struct inode *inode, + sector_t iblock, + struct buffer_head *bh_result, + int create) +{ + return __xfs_get_blocks(inode, iblock, bh_result, create, true, true); } static void diff --git a/fs/xfs/xfs_aops.h b/fs/xfs/xfs_aops.h index 86afd1a..d39ba25 100644 --- a/fs/xfs/xfs_aops.h +++ b/fs/xfs/xfs_aops.h @@ -58,6 +58,8 @@ int xfs_get_blocks(struct inode *inode, sector_t offset, struct buffer_head *map_bh, int create); int xfs_get_blocks_direct(struct inode *inode, sector_t offset, struct buffer_head *map_bh, int create); +int xfs_get_blocks_dax_fault(struct inode *inode, sector_t offset, + struct buffer_head *map_bh, int create); void xfs_end_io_dax_write(struct buffer_head *bh, int uptodate); extern void xfs_count_page_state(struct page *, int *, int *); diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 2f7b6bd..7f873bc 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1508,7 +1508,7 @@ xfs_filemap_page_mkwrite( xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED); if (IS_DAX(inode)) { - ret = __dax_mkwrite(vma, vmf, xfs_get_blocks_direct, + ret = __dax_mkwrite(vma, vmf, xfs_get_blocks_dax_fault, xfs_end_io_dax_write); } else { ret = __block_page_mkwrite(vma, vmf, xfs_get_blocks); @@ -1543,7 +1543,7 @@ xfs_filemap_fault( * changes to xfs_get_blocks_direct() to map unwritten extent * ioend for conversion on read-only mappings. */ - ret = __dax_fault(vma, vmf, xfs_get_blocks_direct, NULL); + ret = __dax_fault(vma, vmf, xfs_get_blocks_dax_fault, NULL); } else ret = filemap_fault(vma, vmf); xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED); @@ -1570,7 +1570,7 @@ xfs_filemap_pmd_fault( sb_start_pagefault(inode->i_sb); file_update_time(vma->vm_file); xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED); - ret = __dax_pmd_fault(vma, addr, pmd, flags, xfs_get_blocks_direct, + ret = __dax_pmd_fault(vma, addr, pmd, flags, xfs_get_blocks_dax_fault, xfs_end_io_dax_write); xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED); sb_end_pagefault(inode->i_sb); -- 2.5.0 From dave@fromorbit.com Sun Nov 1 21:42:42 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2C3F97F5F for ; Sun, 1 Nov 2015 21:42:42 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1AACD8F8033 for ; Sun, 1 Nov 2015 19:42:42 -0800 (PST) X-ASG-Debug-ID: 1446435755-04cbb0660d1b4570003-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id xSp2zMK7PBxXxgYf for ; Sun, 01 Nov 2015 19:42:39 -0800 (PST) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2B5BgBt2jZW/+rW03ZegzuBQqo5AQEBAQEBBpBUjCKBJ00BAQEBAQGBC4Q2AQUnLzMIGDE5AxsZiC/BWYYwikmEPAWWQ45+h2OSfmOBSgELgkIqNIV+AQEB Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 14:12:35 +1030 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1Zt60k-00014m-8l for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 Received: from dave by disappointment with local (Exim 4.86) (envelope-from ) id 1Zt60k-0000SL-80 for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 3/7] xfs: Don't use unwritten extents for DAX Date: Mon, 2 Nov 2015 14:42:11 +1100 X-ASG-Orig-Subj: [PATCH 3/7] xfs: Don't use unwritten extents for DAX Message-Id: <1446435735-1526-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1446435735-1526-1-git-send-email-david@fromorbit.com> References: <1446435735-1526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446435759 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24026 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner DAX has a page fault serialisation problem with block allocation. Because it allows concurrent page faults and does not have a page lock to serialise faults to the same page, it can get two concurrent faults to the page that race. When two read faults race, this isn't a huge problem as the data underlying the page is not changing and so "detect and drop" works just fine. The issues are to do with write faults. When two write faults occur, we serialise block allocation in get_blocks() so only one faul will allocate the extent. It will, however, be marked as an unwritten extent, and that is where the problem lies - the DAX fault code cannot differentiate between a block that was just allocated and a block that was preallocated and needs zeroing. The result is that both write faults end up zeroing the block and attempting to convert it back to written. The problem is that the first fault can zero and convert before the second fault starts zeroing, resulting in the zeroing for the second fault overwriting the data that the first fault wrote with zeros. The second fault then attempts to convert the unwritten extent, which is then a no-op because it's already written. Data loss occurs as a result of this race. Because there is no sane locking construct in the page fault code that we can use for serialisation across the page faults, we need to ensure block allocation and zeroing occurs atomically in the filesystem. This means we can still take concurrent page faults and the only time they will serialise is in the filesystem mapping/allocation callback. The page fault code will always see written, initialised extents, so we will be able to remove the unwritten extent handling from the DAX code when all filesystems are converted. Signed-off-by: Dave Chinner --- fs/dax.c | 5 +++++ fs/xfs/xfs_aops.c | 13 +++++++++---- fs/xfs/xfs_iomap.c | 21 ++++++++++++++++++++- 3 files changed, 34 insertions(+), 5 deletions(-) diff --git a/fs/dax.c b/fs/dax.c index a86d3cc..131fd35a 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -29,6 +29,11 @@ #include #include +/* + * dax_clear_blocks() is called from within transaction context from XFS, + * and hence this means the stack from this point must follow GFP_NOFS + * semantics for all operations. + */ int dax_clear_blocks(struct inode *inode, sector_t block, long size) { struct block_device *bdev = inode->i_sb->s_bdev; diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 366e41eb..7b4f849 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -1293,15 +1293,12 @@ xfs_map_direct( trace_xfs_gbmap_direct(XFS_I(inode), offset, size, type, imap); - /* XXX: preparation for removing unwritten extents in DAX */ -#if 0 if (dax_fault) { ASSERT(type == XFS_IO_OVERWRITE); trace_xfs_gbmap_direct_none(XFS_I(inode), offset, size, type, imap); return; } -#endif if (bh_result->b_private) { ioend = bh_result->b_private; @@ -1429,10 +1426,12 @@ __xfs_get_blocks( if (error) goto out_unlock; + /* for DAX, we convert unwritten extents directly */ if (create && (!nimaps || (imap.br_startblock == HOLESTARTBLOCK || - imap.br_startblock == DELAYSTARTBLOCK))) { + imap.br_startblock == DELAYSTARTBLOCK) || + (IS_DAX(inode) && ISUNWRITTEN(&imap)))) { if (direct || xfs_get_extsz_hint(ip)) { /* * xfs_iomap_write_direct() expects the shared lock. It @@ -1477,6 +1476,12 @@ __xfs_get_blocks( goto out_unlock; } + if (IS_DAX(inode) && create) { + ASSERT(!ISUNWRITTEN(&imap)); + /* zeroing is not needed at a higher layer */ + new = 0; + } + /* trim mapping down to size requested */ if (direct || size > (1 << inode->i_blkbits)) xfs_map_trim_size(inode, iblock, bh_result, diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index c3cb5a5..f4f5b43 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -132,6 +132,7 @@ xfs_iomap_write_direct( int committed; int error; int lockmode; + int bmapi_flags = XFS_BMAPI_PREALLOC; rt = XFS_IS_REALTIME_INODE(ip); extsz = xfs_get_extsz_hint(ip); @@ -195,6 +196,23 @@ xfs_iomap_write_direct( * Allocate and setup the transaction */ tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT); + + /* + * For DAX, we do not allocate unwritten extents, but instead we zero + * the block before we commit the transaction. Ideally we'd like to do + * this outside the transaction context, but if we commit and then crash + * we may not have zeroed the blocks and this will be exposed on + * recovery of the allocation. Hence we must zero before commit. + * Further, if we are mapping unwritten extents here, we need to zero + * and convert them to written so that we don't need an unwritten extent + * callback for DAX. This also means that we need to be able to dip into + * the reserve block pool if there is no space left but we need to do + * unwritten extent conversion. + */ + if (IS_DAX(VFS_I(ip))) { + bmapi_flags = XFS_BMAPI_CONVERT | XFS_BMAPI_ZERO; + tp->t_flags |= XFS_TRANS_RESERVE; + } error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write, resblks, resrtextents); /* @@ -221,7 +239,7 @@ xfs_iomap_write_direct( xfs_bmap_init(&free_list, &firstfsb); nimaps = 1; error = xfs_bmapi_write(tp, ip, offset_fsb, count_fsb, - XFS_BMAPI_PREALLOC, &firstfsb, resblks, imap, + bmapi_flags, &firstfsb, resblks, imap, &nimaps, &free_list); if (error) goto out_bmap_cancel; @@ -232,6 +250,7 @@ xfs_iomap_write_direct( error = xfs_bmap_finish(&tp, &free_list, &committed); if (error) goto out_bmap_cancel; + error = xfs_trans_commit(tp); if (error) goto out_unlock; -- 2.5.0 From dave@fromorbit.com Sun Nov 1 21:42:44 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 128477F7E for ; Sun, 1 Nov 2015 21:42:44 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id D8E26304039 for ; Sun, 1 Nov 2015 19:42:43 -0800 (PST) X-ASG-Debug-ID: 1446435760-04bdf0330a1b9e10001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id ctejGwhwga6JbbVq for ; Sun, 01 Nov 2015 19:42:41 -0800 (PST) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2B5BgBt2jZW/+rW03ZegzuBQqo5AQEBAQEBBpBUjCKBJ00BAQEBAQGBC4Q2AQUnLzMIGDE5AxsZiC/BWYYwikkmhBYFlkOOfo1OhEGIUmOBSgELgkIqNIV+AQEB Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 14:12:35 +1030 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1Zt60k-00014o-9d for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 Received: from dave by disappointment with local (Exim 4.86) (envelope-from ) id 1Zt60k-0000SV-8r for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 5/7] xfs: add ->pfn_mkwrite support for DAX Date: Mon, 2 Nov 2015 14:42:13 +1100 X-ASG-Orig-Subj: [PATCH 5/7] xfs: add ->pfn_mkwrite support for DAX Message-Id: <1446435735-1526-6-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1446435735-1526-1-git-send-email-david@fromorbit.com> References: <1446435735-1526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446435760 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24026 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner ->pfn_mkwrite support is needed so that when a page with allocated backing store takes a write fault we can check that the fault has not raced with a truncate and is pointing to a region beyond the current end of file. This also allows us to update the timestamp on the inode, too, which fixes a generic/080 failure. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Signed-off-by: Dave Chinner --- fs/xfs/xfs_file.c | 35 +++++++++++++++++++++++++++++++++++ fs/xfs/xfs_trace.h | 1 + 2 files changed, 36 insertions(+) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 403151a..e7cf9ec 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1577,11 +1577,46 @@ xfs_filemap_pmd_fault( return ret; } +/* + * pfn_mkwrite was originally inteneded to ensure we capture time stamp + * updates on write faults. In reality, it's need to serialise against + * truncate similar to page_mkwrite. Hence we open-code dax_pfn_mkwrite() + * here and cycle the XFS_MMAPLOCK_SHARED to ensure we serialise the fault + * barrier in place. + */ +static int +xfs_filemap_pfn_mkwrite( + struct vm_area_struct *vma, + struct vm_fault *vmf) +{ + + struct inode *inode = file_inode(vma->vm_file); + struct xfs_inode *ip = XFS_I(inode); + int ret = VM_FAULT_NOPAGE; + loff_t size; + + trace_xfs_filemap_pfn_mkwrite(ip); + + sb_start_pagefault(inode->i_sb); + file_update_time(vma->vm_file); + + /* check if the faulting page hasn't raced with truncate */ + xfs_ilock(ip, XFS_MMAPLOCK_SHARED); + size = (i_size_read(inode) + PAGE_SIZE - 1) >> PAGE_SHIFT; + if (vmf->pgoff >= size) + ret = VM_FAULT_SIGBUS; + xfs_iunlock(ip, XFS_MMAPLOCK_SHARED); + sb_end_pagefault(inode->i_sb); + return ret; + +} + static const struct vm_operations_struct xfs_file_vm_ops = { .fault = xfs_filemap_fault, .pmd_fault = xfs_filemap_pmd_fault, .map_pages = filemap_map_pages, .page_mkwrite = xfs_filemap_page_mkwrite, + .pfn_mkwrite = xfs_filemap_pfn_mkwrite, }; STATIC int diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index 957f5cc..877079eb 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -689,6 +689,7 @@ DEFINE_INODE_EVENT(xfs_inode_free_eofblocks_invalid); DEFINE_INODE_EVENT(xfs_filemap_fault); DEFINE_INODE_EVENT(xfs_filemap_pmd_fault); DEFINE_INODE_EVENT(xfs_filemap_page_mkwrite); +DEFINE_INODE_EVENT(xfs_filemap_pfn_mkwrite); DECLARE_EVENT_CLASS(xfs_iref_class, TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip), -- 2.5.0 From dave@fromorbit.com Sun Nov 1 21:42:44 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 16D657F80 for ; Sun, 1 Nov 2015 21:42:44 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 05C64304053 for ; Sun, 1 Nov 2015 19:42:44 -0800 (PST) X-ASG-Debug-ID: 1446435755-04cbb0660d1b4570004-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id zxUrE2eupmxVr3SI for ; Sun, 01 Nov 2015 19:42:41 -0800 (PST) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2B4BgBt2jZW/+rW03ZegzuBQqo5AQEBAQEBBpBUjUlNAQEBAQEBgQuENgEFJy8RIggYMTkDGxmIL8FZhjCPBQWWQ45+kg+IUmOBSgELgkIqNIV+AQEB Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 14:12:35 +1030 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1Zt60k-00014q-AZ for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 Received: from dave by disappointment with local (Exim 4.86) (envelope-from ) id 1Zt60k-0000Sf-9p for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 7/7] xfs: optimise away log forces on timestamp updates for fdatasync Date: Mon, 2 Nov 2015 14:42:15 +1100 X-ASG-Orig-Subj: [PATCH 7/7] xfs: optimise away log forces on timestamp updates for fdatasync Message-Id: <1446435735-1526-8-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1446435735-1526-1-git-send-email-david@fromorbit.com> References: <1446435735-1526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446435761 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24026 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner xfs: timestamp updates cause excessive fdatasync log traffic Sage Weil reported that a ceph test workload was writing to the log on every fdatasync during an overwrite workload. Event tracing showed that the only metadata modification being made was the timestamp updates during the write(2) syscall, but fdatasync(2) is supposed to ignore them. The key observation was that the transactions in the log all looked like this: INODE: #regs: 4 ino: 0x8b flags: 0x45 dsize: 32 And contained a flags field of 0x45 or 0x85, and had data and attribute forks following the inode core. This means that the timestamp updates were triggering dirty relogging of previously logged parts of the inode that hadn't yet been flushed back to disk. There are two parts to this problem. The first is that XFS relogs dirty regions in subsequent transactions, so it carries around the fields that have been dirtied since the last time the inode was written back to disk, not since the last time the inode was forced into the log. The second part is that on v5 filesystems, the inode change count update during inode dirtying also sets the XFS_ILOG_CORE flag, so on v5 filesystems this makes a timestamp update dirty the entire inode. As a result when fdatasync is run, it looks at the dirty fields in the inode, and sees more than just the timestamp flag, even though the only metadata change since the last fdatasync was just the timestamps. Hence we force the log on every subsequent fdatasync even though it is not needed. To fix this, add a new field to the inode log item that tracks changes since the last time fsync/fdatasync forced the log to flush the changes to the journal. This flag is updated when we dirty the inode, but we do it before updating the change count so it does not carry the "core dirty" flag from timestamp updates. The fields are zeroed when the inode is marked clean (due to writeback/freeing) or when an fsync/datasync forces the log. Hence if we only dirty the timestamps on the inode between fsync/fdatasync calls, the fdatasync will not trigger another log force. Over 100 runs of the test program: Ext4 baseline: runtime: 1.63s +/- 0.24s avg lat: 1.59ms +/- 0.24ms iops: ~2000 XFS, vanilla kernel: runtime: 2.45s +/- 0.18s avg lat: 2.39ms +/- 0.18ms log forces: ~400/s iops: ~1000 XFS, patched kernel: runtime: 1.49s +/- 0.26s avg lat: 1.46ms +/- 0.25ms log forces: ~30/s iops: ~1500 Reported-by: Sage Weil Signed-off-by: Dave Chinner --- fs/xfs/xfs_file.c | 21 ++++++++++++++++----- fs/xfs/xfs_inode.c | 2 ++ fs/xfs/xfs_inode_item.c | 1 + fs/xfs/xfs_inode_item.h | 1 + fs/xfs/xfs_trans_inode.c | 9 +++++++++ 5 files changed, 29 insertions(+), 5 deletions(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 0045b0a..39743ef 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -242,19 +242,30 @@ xfs_file_fsync( } /* - * All metadata updates are logged, which means that we just have - * to flush the log up to the latest LSN that touched the inode. + * All metadata updates are logged, which means that we just have to + * flush the log up to the latest LSN that touched the inode. If we have + * concurrent fsync/fdatasync() calls, we need them to all block on the + * log force before we clear the ili_fsync_fields field. This ensures + * that we don't get a racing sync operation that does not wait for the + * metadata to hit the journal before returning. If we race with + * clearing the ili_fsync_fields, then all that will happen is the log + * force will do nothing as the lsn will already be on disk. We can't + * race with setting ili_fsync_fields because that is done under + * XFS_ILOCK_EXCL, and that can't happen because we hold the lock shared + * until after the ili_fsync_fields is cleared. */ xfs_ilock(ip, XFS_ILOCK_SHARED); if (xfs_ipincount(ip)) { if (!datasync || - (ip->i_itemp->ili_fields & ~XFS_ILOG_TIMESTAMP)) + (ip->i_itemp->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP)) lsn = ip->i_itemp->ili_last_lsn; } - xfs_iunlock(ip, XFS_ILOCK_SHARED); - if (lsn) + if (lsn) { error = _xfs_log_force_lsn(mp, lsn, XFS_LOG_SYNC, &log_flushed); + ip->i_itemp->ili_fsync_fields = 0; + } + xfs_iunlock(ip, XFS_ILOCK_SHARED); /* * If we only have a single device, and the log force about was diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index a0f2bae..8ee3939 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -2365,6 +2365,7 @@ retry: iip->ili_last_fields = iip->ili_fields; iip->ili_fields = 0; + iip->ili_fsync_fields = 0; iip->ili_logged = 1; xfs_trans_ail_copy_lsn(mp->m_ail, &iip->ili_flush_lsn, &iip->ili_item.li_lsn); @@ -3560,6 +3561,7 @@ xfs_iflush_int( */ iip->ili_last_fields = iip->ili_fields; iip->ili_fields = 0; + iip->ili_fsync_fields = 0; iip->ili_logged = 1; xfs_trans_ail_copy_lsn(mp->m_ail, &iip->ili_flush_lsn, diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c index 62bd80f..d14b12b 100644 --- a/fs/xfs/xfs_inode_item.c +++ b/fs/xfs/xfs_inode_item.c @@ -719,6 +719,7 @@ xfs_iflush_abort( * attempted. */ iip->ili_fields = 0; + iip->ili_fsync_fields = 0; } /* * Release the inode's flush lock since we're done with it. diff --git a/fs/xfs/xfs_inode_item.h b/fs/xfs/xfs_inode_item.h index 488d812..4c7722e 100644 --- a/fs/xfs/xfs_inode_item.h +++ b/fs/xfs/xfs_inode_item.h @@ -34,6 +34,7 @@ typedef struct xfs_inode_log_item { unsigned short ili_logged; /* flushed logged data */ unsigned int ili_last_fields; /* fields when flushed */ unsigned int ili_fields; /* fields to be logged */ + unsigned int ili_fsync_fields; /* logged since last fsync */ } xfs_inode_log_item_t; static inline int xfs_inode_clean(xfs_inode_t *ip) diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c index 17280cd..b97f1df 100644 --- a/fs/xfs/xfs_trans_inode.c +++ b/fs/xfs/xfs_trans_inode.c @@ -108,6 +108,15 @@ xfs_trans_log_inode( ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); /* + * Record the specific change for fdatasync optimisation. This + * allows fdatasync to skip log forces for inodes that are only + * timestamp dirty. We do this before the change count so that + * the core being logged in this case does not impact on fdatasync + * behaviour. + */ + ip->i_itemp->ili_fsync_fields |= flags; + + /* * First time we log the inode in a transaction, bump the inode change * counter if it is configured for this to occur. We don't use * inode_inc_version() because there is no need for extra locking around -- 2.5.0 From dave@fromorbit.com Sun Nov 1 21:42:44 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A09C17F7E for ; Sun, 1 Nov 2015 21:42:44 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8370B304053 for ; Sun, 1 Nov 2015 19:42:44 -0800 (PST) X-ASG-Debug-ID: 1446435757-04cbb0660c1b4570003-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id KZzsT1iIEgS35i8f for ; Sun, 01 Nov 2015 19:42:41 -0800 (PST) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2B5BgBt2jZW/+rW03ZegzuBQqo5AQEBAQEBBpBUjCKBJ00BAQEBAQGBC4Q2AQUnLzMIGDE5AxsZiC/BWYYwikmEPAWHQocKh3ecTI0TY4FKAQsBOh2Baio0hX4BAQE Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 14:12:35 +1030 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1Zt60k-00014l-8H for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 Received: from dave by disappointment with local (Exim 4.86) (envelope-from ) id 1Zt60k-0000SF-7X for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 2/7] xfs: introduce BMAPI_ZERO for allocating zeroed extents Date: Mon, 2 Nov 2015 14:42:10 +1100 X-ASG-Orig-Subj: [PATCH 2/7] xfs: introduce BMAPI_ZERO for allocating zeroed extents Message-Id: <1446435735-1526-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1446435735-1526-1-git-send-email-david@fromorbit.com> References: <1446435735-1526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446435761 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24026 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner To enable DAX to do atomic allocation of zeroed extents, we need to drive the block zeroing deep into the allocator. Because xfs_bmapi_write() can return merged extents on allocation that were only partially allocated (i.e. requested range spans allocated and hole regions, allocation into the hole was contiguous), we cannot zero the extent returned from xfs_bmapi_write() as that can overwrite existing data with zeros. Hence we have to drive the extent zeroing into the allocation code, prior to where we merge the extents into the BMBT and return the resultant map. This means we need to propagate this need down to the xfs_alloc_vextent() and issue the block zeroing at this point. While this functionality is being introduced for DAX, there is no reason why it is specific to DAX - we can per-zero blocks during the allocation transaction on any type of device. It's just slow (and usually slower than unwritten allocation and conversion) on traditional block devices so doesn't tend to get used. We can, however, hook hardware zeroing optimisations via sb_issue_zeroout() to this operation, so it may be useful in future and hence the "allocate zeroed blocks" API needs to be implementation neutral. Signed-off-by: Dave Chinner --- fs/xfs/libxfs/xfs_alloc.c | 10 +++++++++- fs/xfs/libxfs/xfs_alloc.h | 8 +++++--- fs/xfs/libxfs/xfs_bmap.c | 35 +++++++++++++++++++++++++++++++++-- fs/xfs/libxfs/xfs_bmap.h | 13 +++++++++++-- fs/xfs/xfs_bmap_util.c | 36 ++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_mount.h | 3 +++ 6 files changed, 97 insertions(+), 8 deletions(-) diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index e926197..3479294 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -2509,7 +2509,7 @@ xfs_alloc_vextent( * Try near allocation first, then anywhere-in-ag after * the first a.g. fails. */ - if ((args->userdata == XFS_ALLOC_INITIAL_USER_DATA) && + if ((args->userdata & XFS_ALLOC_INITIAL_USER_DATA) && (mp->m_flags & XFS_MOUNT_32BITINODES)) { args->fsbno = XFS_AGB_TO_FSB(mp, ((mp->m_agfrotor / rotorstep) % @@ -2640,6 +2640,14 @@ xfs_alloc_vextent( XFS_AG_CHECK_DADDR(mp, XFS_FSB_TO_DADDR(mp, args->fsbno), args->len); #endif + + /* Zero the extent if we were asked to do so */ + if (args->userdata & XFS_ALLOC_USERDATA_ZERO) { + error = xfs_zero_extent(args->ip, args->fsbno, args->len); + if (error) + goto error0; + } + } xfs_perag_put(args->pag); return 0; diff --git a/fs/xfs/libxfs/xfs_alloc.h b/fs/xfs/libxfs/xfs_alloc.h index ca1c816..0ecde4d 100644 --- a/fs/xfs/libxfs/xfs_alloc.h +++ b/fs/xfs/libxfs/xfs_alloc.h @@ -101,6 +101,7 @@ typedef struct xfs_alloc_arg { struct xfs_mount *mp; /* file system mount point */ struct xfs_buf *agbp; /* buffer for a.g. freelist header */ struct xfs_perag *pag; /* per-ag struct for this agno */ + struct xfs_inode *ip; /* for userdata zeroing method */ xfs_fsblock_t fsbno; /* file system block number */ xfs_agnumber_t agno; /* allocation group number */ xfs_agblock_t agbno; /* allocation group-relative block # */ @@ -120,15 +121,16 @@ typedef struct xfs_alloc_arg { char wasdel; /* set if allocation was prev delayed */ char wasfromfl; /* set if allocation is from freelist */ char isfl; /* set if is freelist blocks - !acctg */ - char userdata; /* set if this is user data */ + char userdata; /* mask defining userdata treatment */ xfs_fsblock_t firstblock; /* io first block allocated */ } xfs_alloc_arg_t; /* * Defines for userdata */ -#define XFS_ALLOC_USERDATA 1 /* allocation is for user data*/ -#define XFS_ALLOC_INITIAL_USER_DATA 2 /* special case start of file */ +#define XFS_ALLOC_USERDATA (1 << 0)/* allocation is for user data*/ +#define XFS_ALLOC_INITIAL_USER_DATA (1 << 1)/* special case start of file */ +#define XFS_ALLOC_USERDATA_ZERO (1 << 2)/* zero extent on allocation */ xfs_extlen_t xfs_alloc_longest_free_extent(struct xfs_mount *mp, struct xfs_perag *pag, xfs_extlen_t need); diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index ab92d10..119c242 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -3802,8 +3802,13 @@ xfs_bmap_btalloc( args.wasdel = ap->wasdel; args.isfl = 0; args.userdata = ap->userdata; - if ((error = xfs_alloc_vextent(&args))) + if (ap->userdata & XFS_ALLOC_USERDATA_ZERO) + args.ip = ap->ip; + + error = xfs_alloc_vextent(&args); + if (error) return error; + if (tryagain && args.fsbno == NULLFSBLOCK) { /* * Exact allocation failed. Now try with alignment @@ -4302,11 +4307,14 @@ xfs_bmapi_allocate( /* * Indicate if this is the first user data in the file, or just any - * user data. + * user data. And if it is userdata, indicate whether it needs to + * be initialised to zero during allocation. */ if (!(bma->flags & XFS_BMAPI_METADATA)) { bma->userdata = (bma->offset == 0) ? XFS_ALLOC_INITIAL_USER_DATA : XFS_ALLOC_USERDATA; + if (bma->flags & XFS_BMAPI_ZERO) + bma->userdata |= XFS_ALLOC_USERDATA_ZERO; } bma->minlen = (bma->flags & XFS_BMAPI_CONTIG) ? bma->length : 1; @@ -4421,6 +4429,17 @@ xfs_bmapi_convert_unwritten( mval->br_state = (mval->br_state == XFS_EXT_UNWRITTEN) ? XFS_EXT_NORM : XFS_EXT_UNWRITTEN; + /* + * Before insertion into the bmbt, zero the range being converted + * if required. + */ + if (flags & XFS_BMAPI_ZERO) { + error = xfs_zero_extent(bma->ip, mval->br_startblock, + mval->br_blockcount); + if (error) + return error; + } + error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, &bma->idx, &bma->cur, mval, bma->firstblock, bma->flist, &tmp_logflags); @@ -4514,6 +4533,18 @@ xfs_bmapi_write( ASSERT(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_LOCAL); ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); + /* zeroing is for currently only for data extents, not metadata */ + ASSERT((flags & (XFS_BMAPI_METADATA | XFS_BMAPI_ZERO)) != + (XFS_BMAPI_METADATA | XFS_BMAPI_ZERO)); + /* + * we can allocate unwritten extents or pre-zero allocated blocks, + * but it makes no sense to do both at once. This would result in + * zeroing the unwritten extent twice, but it still being an + * unwritten extent.... + */ + ASSERT((flags & (XFS_BMAPI_PREALLOC | XFS_BMAPI_ZERO)) != + (XFS_BMAPI_PREALLOC | XFS_BMAPI_ZERO)); + if (unlikely(XFS_TEST_ERROR( (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS && XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE), diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h index 6aaa0c1..a160f8a 100644 --- a/fs/xfs/libxfs/xfs_bmap.h +++ b/fs/xfs/libxfs/xfs_bmap.h @@ -52,9 +52,9 @@ struct xfs_bmalloca { xfs_extlen_t minleft; /* amount must be left after alloc */ bool eof; /* set if allocating past last extent */ bool wasdel; /* replacing a delayed allocation */ - bool userdata;/* set if is user data */ bool aeof; /* allocated space at eof */ bool conv; /* overwriting unwritten extents */ + char userdata;/* userdata mask */ int flags; }; @@ -109,6 +109,14 @@ typedef struct xfs_bmap_free */ #define XFS_BMAPI_CONVERT 0x040 +/* + * allocate zeroed extents - this requires all newly allocated user data extents + * to be initialised to zero. It will be ignored if XFS_BMAPI_METADATA is set. + * Use in conjunction with XFS_BMAPI_CONVERT to convert unwritten extents found + * during the allocation range to zeroed written extents. + */ +#define XFS_BMAPI_ZERO 0x080 + #define XFS_BMAPI_FLAGS \ { XFS_BMAPI_ENTIRE, "ENTIRE" }, \ { XFS_BMAPI_METADATA, "METADATA" }, \ @@ -116,7 +124,8 @@ typedef struct xfs_bmap_free { XFS_BMAPI_PREALLOC, "PREALLOC" }, \ { XFS_BMAPI_IGSTATE, "IGSTATE" }, \ { XFS_BMAPI_CONTIG, "CONTIG" }, \ - { XFS_BMAPI_CONVERT, "CONVERT" } + { XFS_BMAPI_CONVERT, "CONVERT" }, \ + { XFS_BMAPI_ZERO, "ZERO" } static inline int xfs_bmapi_aflag(int w) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index eca325e..dbae649 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -57,6 +57,35 @@ xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb) } /* + * Routine to zero an extent on disk allocated to the specific inode. + * + * The VFS functions take a linearised filesystem block offset, so we have to + * convert the sparse xfs fsb to the right format first. + * VFS types are real funky, too. + */ +int +xfs_zero_extent( + struct xfs_inode *ip, + xfs_fsblock_t start_fsb, + xfs_off_t count_fsb) +{ + struct xfs_mount *mp = ip->i_mount; + xfs_daddr_t sector = xfs_fsb_to_db(ip, start_fsb); + sector_t block = XFS_BB_TO_FSBT(mp, sector); + ssize_t size = XFS_FSB_TO_B(mp, count_fsb); + + if (IS_DAX(VFS_I(ip))) + return dax_clear_blocks(VFS_I(ip), block, size); + + /* + * let the block layer decide on the fastest method of + * implementing the zeroing. + */ + return sb_issue_zeroout(mp->m_super, block, count_fsb, GFP_NOFS); + +} + +/* * Routine to be called at transaction's end by xfs_bmapi, xfs_bunmapi * caller. Frees all the extents that need freeing, which must be done * last due to locking considerations. We never free any extents in @@ -229,6 +258,13 @@ xfs_bmap_rtalloc( xfs_trans_mod_dquot_byino(ap->tp, ap->ip, ap->wasdel ? XFS_TRANS_DQ_DELRTBCOUNT : XFS_TRANS_DQ_RTBCOUNT, (long) ralen); + + /* Zero the extent if we were asked to do so */ + if (ap->userdata & XFS_ALLOC_USERDATA_ZERO) { + error = xfs_zero_extent(ap->ip, ap->blkno, ap->length); + if (error) + return error; + } } else { ap->length = 0; } diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 8795272..f20e5de 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -337,4 +337,7 @@ extern int xfs_dev_is_read_only(struct xfs_mount *, char *); extern void xfs_set_low_space_thresholds(struct xfs_mount *); +int xfs_zero_extent(struct xfs_inode *ip, xfs_fsblock_t start_fsb, + xfs_off_t count_fsb); + #endif /* __XFS_MOUNT_H__ */ -- 2.5.0 From dave@fromorbit.com Sun Nov 1 21:42:45 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6D1E07F67 for ; Sun, 1 Nov 2015 21:42:45 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5C43A304053 for ; Sun, 1 Nov 2015 19:42:42 -0800 (PST) X-ASG-Debug-ID: 1446435757-04cbb0660c1b4570002-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id pTia1fTkdNG9ZENT for ; Sun, 01 Nov 2015 19:42:40 -0800 (PST) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2B5BgBt2jZW/+rW03ZegzuBQqo5AQEBAQEBBpBUjCKBJ00BAQEBAQGBC4Q2AQUnLxEiCBgxOQMbGYgvwVmGMIpJJoQWBZZDjn6HY4VrjRNjgUoBC4JCKjSFfgEBAQ Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 14:12:35 +1030 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1Zt60k-00014p-A3 for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 Received: from dave by disappointment with local (Exim 4.86) (envelope-from ) id 1Zt60k-0000Sa-9L for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:42:22 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 6/7] xfs: xfs_filemap_pmd_fault treats read faults as write faults Date: Mon, 2 Nov 2015 14:42:14 +1100 X-ASG-Orig-Subj: [PATCH 6/7] xfs: xfs_filemap_pmd_fault treats read faults as write faults Message-Id: <1446435735-1526-7-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1446435735-1526-1-git-send-email-david@fromorbit.com> References: <1446435735-1526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446435759 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24026 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner The code initially committed didn't have the same checks for write faults as the dax_pmd_fault code and hence treats all faults as write faults. We can get read faults through this path because they is no pmd_mkwrite path for write faults similar to the normal page fault path. Hence we need to ensure that we only do c/mtime updates on write faults, and freeze protection is unnecessary for read faults. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Signed-off-by: Dave Chinner --- fs/xfs/xfs_file.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index e7cf9ec..0045b0a 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1482,7 +1482,7 @@ xfs_file_llseek( * * mmap_sem (MM) * sb_start_pagefault(vfs, freeze) - * i_mmap_lock (XFS - truncate serialisation) + * i_mmaplock (XFS - truncate serialisation) * page_lock (MM) * i_lock (XFS - extent map serialisation) */ @@ -1550,6 +1550,13 @@ xfs_filemap_fault( return ret; } +/* + * Similar to xfs_filemap_fault(), the DAX fault path can call into here on + * both read and write faults. Hence we need to handle both cases. There is no + * ->pmd_mkwrite callout for huge pages, so we have a single function here to + * handle both cases here. @flags carries the information on the type of fault + * occuring. + */ STATIC int xfs_filemap_pmd_fault( struct vm_area_struct *vma, @@ -1566,13 +1573,18 @@ xfs_filemap_pmd_fault( trace_xfs_filemap_pmd_fault(ip); - sb_start_pagefault(inode->i_sb); - file_update_time(vma->vm_file); + if (flags & FAULT_FLAG_WRITE) { + sb_start_pagefault(inode->i_sb); + file_update_time(vma->vm_file); + } + xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED); ret = __dax_pmd_fault(vma, addr, pmd, flags, xfs_get_blocks_dax_fault, NULL); xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED); - sb_end_pagefault(inode->i_sb); + + if (flags & FAULT_FLAG_WRITE) + sb_end_pagefault(inode->i_sb); return ret; } -- 2.5.0 From david@fromorbit.com Sun Nov 1 21:53:57 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 44F057F66 for ; Sun, 1 Nov 2015 21:53:57 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id CB835AC002 for ; Sun, 1 Nov 2015 19:53:56 -0800 (PST) X-ASG-Debug-ID: 1446436433-04bdf0330c1ba2e0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id HTTXkLbZOmcS8soy for ; Sun, 01 Nov 2015 19:53:54 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DCBgD73TZW/+rW03ZegzsjMG+qIQIBFQEBAQEBAQaBDYohhSaGCRcChXoEgSlNAQEBAQEBgQuFEjskNAUlAzSIL6BqoGkJGYYXim+CFwxCgTEFkmaDXYUdiACOao1YY4FKDAGCQSo0hDYlgSMBAQE Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 14:23:27 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zt6BF-00018G-3l for xfs@oss.sgi.com; Mon, 02 Nov 2015 14:53:13 +1100 Date: Mon, 2 Nov 2015 14:53:13 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [ANNOUNCE] xfs: for-next branch updated to f108bf2 Message-ID: <20151102035313.GZ19199@dastard> X-ASG-Orig-Subj: [ANNOUNCE] xfs: for-next branch updated to f108bf2 MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="cmJC7u66zC7hs+87" Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446436433 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24027 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- --cmJC7u66zC7hs+87 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Folks, The for-next branch of the xfs kernel repository at git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git has just been updated. The new head of the for-next branch is commit: f108bf2 Merge branch 'xfs-misc-fixes-for-4.4-2' into for-next New Commits: Andreas Gruenbacher (2): [1c99cfd] xfs: Validate the length of on-disk ACLs [80e0f22] xfs: Plug memory leak in xfs_attrmulti_attr_set Brian Foster (1): [6caa105] xfs: invalidate cached acl if set directly via xattr Dave Chinner (1): [f108bf2] Merge branch 'xfs-misc-fixes-for-4.4-2' into for-next Jiri Kosina (1): [24ba16b] xfs: clear PF_NOFREEZE for xfsaild kthread Code Diffstat: fs/xfs/libxfs/xfs_format.h | 8 ++++++-- fs/xfs/xfs_acl.c | 13 ++++++++----- fs/xfs/xfs_ioctl.c | 5 ++++- fs/xfs/xfs_trans_ail.c | 1 + fs/xfs/xfs_xattr.c | 19 +++++++++++++++++-- 5 files changed, 36 insertions(+), 10 deletions(-) --=20 Dave Chinner david@fromorbit.com --cmJC7u66zC7hs+87 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJWNt4oAAoJEK3oKUf0dfod4sIP/0U5Sb60erzFD4oIeXDZmwef nDYV+SCt+vRuqKb8r2Zbilse3pHViiZJgRUKli9x/suepe2eBGARsv5xTp9qPZin 9HMnRl/KCKxZMtd4N/eR4YaDntdjoN8UIiMgASEuriWmGxtZTJ+LIYpdR7Us159T plrthX2klT3kIKY4x8hZpEHI7O9RJYzUQ59ZzM8zaZrekoh/nyKt1/wCprSr6TLv fjt2zZqJKIvotdmI35mLaVCkljyvxHk0oSIxLZDB5U7BvZULThwN9hExw6UgIxH3 MrjE367z6ltDqKn7CkDYzcGpaKJ4YNmaaq4cuHS8io/XitR/7qUSR12PbhP+P7Ic PS1pRwKq5QOAG0IwaZ2vBvBWwB234HDO8MpeD4GxRgov5PBjI+EkGezj7LqwJFEI 07R5QS9j6IPzNR5M2dZEGCjC4rk/GFryUEqXqQ574iY5sdN9FSIB5zYg2kqAEFj1 YTY4RjZ+xcnRXw2IRBcbYYXJ2WbdtKY0XNwHTEC/vT1FDx6H0ifjMFDrggPJTjzz 91bOl/k7fvrgzvUflvnayKn8IZxnsPMZT/ctA2c7pAPLLVukY0PFWwmmWi6vkVbJ MOKMpPHBE5fUwnGfH75xcNrVd898hxucoBP1G87cQcaGzUa7agrsyrAwlV72J5KO p/9WMS/gwMRDzM5y4oZa =Dp/c -----END PGP SIGNATURE----- --cmJC7u66zC7hs+87-- From lendingtree-partners-xfs=oss.sgi.com@fluoridesubstance.com Mon Nov 2 05:44:35 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.1 required=5.0 tests=HTML_IMAGE_RATIO_04, HTML_MESSAGE,MIME_QP_LONG_LINE,T_DKIM_INVALID,T_REMOTE_IMAGE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 770977F59 for ; Mon, 2 Nov 2015 05:44:35 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1E985AC007 for ; Mon, 2 Nov 2015 03:44:32 -0800 (PST) X-ASG-Debug-ID: 1446464659-04bdf033091ca860001-NocioJ Received: from mail.fluoridesubstance.com (dyna51.armadyl.org [64.110.25.51]) by cuda.sgi.com with ESMTP id 2c1C1GtPl28fT9LC for ; Mon, 02 Nov 2015 03:44:19 -0800 (PST) X-Barracuda-Envelope-From: lendingtree-partners-xfs=oss.sgi.com@fluoridesubstance.com X-Barracuda-Apparent-Source-IP: 64.110.25.51 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; s=dkim; d=fluoridesubstance.com; h=Date:From:To:Subject:MIME-Version:Content-Type:Message-ID; i=lendingtree-partners@fluoridesubstance.com; bh=VUc+MiSrw3KzRdbHAZP0ZWh3WFc=; b=qYEFvgGPr6ryjllfY1KX9I9e1Borm/h0By1WHiVt/il9CoKXQyV2ACLLN2r/UoSEhIntOAHE+AfO zpPpmzVbwAPedqYsS1/PrrnyRqXgcsTja/F17/k2SQ8/SPhgkARCqyRVJ0cvEiifH+ZOv+eUSohC tvUWgPsicU1+Jn9HnlI= DomainKey-Signature: a=rsa-sha1; c=nofws; q=dns; s=dkim; d=fluoridesubstance.com; b=V/2aPSVgtKvt9fouNPXuIIAOdiieagLOErRqkrVICjAZkzP6yoedoE+HJSR/CxfOnyJ1n0W7c4Cu MZJjJ2JKgli6bJJQj6k4ZwYmoPCgdXvrFbX5dnt0JwMgZgbVNe5CGx5XHcoZqsmbQ3+jvh9LZUj4 u2G0G/SOeh8NVInF2es=; Received: by mail.fluoridesubstance.com id h6t6980001gs for ; Mon, 2 Nov 2015 05:35:36 -0600 (envelope-from ) Date: Mon, 2 Nov 2015 05:35:36 -0600 From: "LendingTree Partners" To: Subject: Mortgage rates are rising. 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=20 =20 ------=_Part_58_1148131817.1446464063789-- From eflorac@intellique.com Mon Nov 2 06:05:15 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6D31A29DF5 for ; Mon, 2 Nov 2015 06:05:15 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 58FAA304039 for ; Mon, 2 Nov 2015 04:05:11 -0800 (PST) X-ASG-Debug-ID: 1446465908-04cbb0660d1c6730001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id G8m8vQAGUTWNqn7C (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 02 Nov 2015 04:05:09 -0800 (PST) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id 98E5E2CB37; Mon, 2 Nov 2015 07:05:08 -0500 (EST) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail1.g1.pair.com (Postfix) with ESMTPSA id 9D0792CA32; Mon, 2 Nov 2015 07:05:07 -0500 (EST) Date: Mon, 2 Nov 2015 13:05:10 +0100 From: Emmanuel Florac To: Stefan Ring Cc: "krautus@kr916.org" , Linux fs XFS Subject: Re: hdd + ssd Message-ID: <20151102130510.7292dec5@harpe.intellique.com> X-ASG-Orig-Subj: Re: hdd + ssd In-Reply-To: References: <20151022202324.5f00807f@linux> <20151023134805.3c7998e4@harpe.intellique.com> Organization: Intellique X-Mailer: Claws Mail 3.12.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1446465909 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.20 X-Barracuda-Spam-Status: No, SCORE=0.20 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC7_SA298e X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.20 BSF_SC7_SA298e Custom Rule SA298e Le Fri, 23 Oct 2015 23:34:00 +0200 Stefan Ring =C3=A9crivait: > Very good summary, thanks! Do you also happen to know if all of these > retain cache contents across reboots? Yes, they retain cache contents across reboots. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From david@fromorbit.com Mon Nov 2 06:20:40 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 2F05329DF5 for ; Mon, 2 Nov 2015 06:20:40 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id C860FAC001 for ; Mon, 2 Nov 2015 04:20:39 -0800 (PST) X-ASG-Debug-ID: 1446466832-04bdf0330c1cbdb0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id ZUqZkxXxZxHdITUt for ; Mon, 02 Nov 2015 04:20:32 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CwBwDQUzdW/+rW03ZegzuBQoJdp18BAQEBAQEGiy6FJoYJhhMCAgEBAoEtTQEBAQEBAYELhDYBAQQ6HCMQCAMOCgklDwUlAyETiC/BHgEBCAIBIBmGF4VFiUAFlkONHYFhhD+HNIp8g3JjghEdgWoqNIQ2JYEjAQEB Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 02 Nov 2015 22:50:31 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZtE5y-000207-Df; Mon, 02 Nov 2015 23:20:18 +1100 Date: Mon, 2 Nov 2015 23:20:18 +1100 From: Dave Chinner To: Andreas Gruenbacher Cc: Brian Foster , xfs@oss.sgi.com Subject: Re: [PATCH v2 0/5] xfs: SGI ACL Fixes Message-ID: <20151102122018.GH10656@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 0/5] xfs: SGI ACL Fixes References: <1446217508-22157-1-git-send-email-agruenba@redhat.com> <20151102025352.GY19199@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446466832 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Nov 02, 2015 at 04:41:30AM +0100, Andreas Gruenbacher wrote: > On Mon, Nov 2, 2015 at 3:53 AM, Dave Chinner wrote: > > On Fri, Oct 30, 2015 at 04:05:03PM +0100, Andreas Gruenbacher wrote: > >> Here is a reworked patch queue that also handles setting SGI_ACL_{FILE,DEFAULT} > >> via XFS_IOC_ATTRMULTI_BY_HANDLE. Please review. > >> > >> Thanks, > >> Andreas > >> > >> Andreas Gruenbacher (5): > >> xfs: Validate the length of on-disk ACLs > >> xfs: Plug memory leak in xfs_attrmulti_attr_set > > > > Ok, I've taken these two patches for the upcoming merge window as > > they fix bugs, but I've taken Brian's cached ACL invalidation patch > > instead of these: > > > >> xfs: SGI ACLs: Fix caching and mode setting > >> xfs: Add namespace parameter to the xfs kuid/kgid <=> uid/gid wrappers > >> xfs: SGI ACLs: Map uid/gid namespaces > > > > I'm not yet convinced that these patches are the right way to solve > > the given issue as they may interact badly with xfsdump/restore. > > Well, what else do you need to be convinced? I guess it won't help if > I try to explain everything all over again? No, it won't. There are bigger picture questions and issues that need to be sorted out first. We've basically got zero regression test coverage of the "set the ACL in on-disk format directly" code path, so we don't know if we're breaking anything. That's a big red flag to me, because I can't easily validate that the changes are working as expected.. IOWs, I don't know how the changes will impact dump/restore, apart from the fact that dump/restore expects to be able to set the ACL directly in the on-disk format without the kernel screwing with the mode. i.e. dump pulls the inode mode and ACLs in disk format from the disk via bulkstat and restore expects to be able to recreate them exactly without the kernel getting in it's way. Again, we have basically no test coverage here, so again there's nothing I can do to easily validate that the changes have not broken dump/restore in subtle but important ways. Further, we have no user namespace regression test coverage. I have absolutely no idea if xfs_restore will even run in a user namespace, let alone run correctly. We already know that xfsdump cannot be made to work in a confined user namespace due to it's use of bulkstat, so do we really care whether xfs_restore works in a namespace or not? As such, it's not immediately obvious to me that we should even allow setting acls directly in on-disk format in user namespaces. And if we don't allow it, then the last two patches can simply be dropped and replaced with simple CAP_SYS_ADMIN check. I don't have time to sit down and write special point tests to validate every change that comes through. However, ACLs are a security mechanism and so we have to get them right and that means we need such tests. If you want to convince me that your changes are correct, are needed and don't break anything, then provide the regression tests that prove it. Otherwise you're simply going to have to wait for me to find the time to do it myself - I've got a real long list of stuff I'd prefer to do than write ACL regression tests.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From bfoster@redhat.com Mon Nov 2 08:15:17 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1A6A829DF5 for ; Mon, 2 Nov 2015 08:15:17 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id E59588F8040 for ; Mon, 2 Nov 2015 06:15:13 -0800 (PST) X-ASG-Debug-ID: 1446473712-04cb6c7b871b6fb0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 8rj1YzbPZRRBsWQj (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 02 Nov 2015 06:15:12 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id DE5C542E5AA; Mon, 2 Nov 2015 14:15:11 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-105.bos.redhat.com [10.18.41.105]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA2EFBRj032104; Mon, 2 Nov 2015 09:15:11 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 458121201AB; Mon, 2 Nov 2015 09:15:10 -0500 (EST) Date: Mon, 2 Nov 2015 09:15:10 -0500 From: Brian Foster To: Dave Chinner Cc: ross.zwisler@linux.intel.com, jack@suse.cz, xfs@oss.sgi.com Subject: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Message-ID: <20151102141509.GA29346@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX References: <1445225238-30413-1-git-send-email-david@fromorbit.com> <1445225238-30413-4-git-send-email-david@fromorbit.com> <20151029142950.GE11663@bfoster.bfoster> <20151029233756.GS19199@dastard> <20151030123657.GC54905@bfoster.bfoster> <20151102011433.GW19199@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151102011433.GW19199@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446473712 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 02, 2015 at 12:14:33PM +1100, Dave Chinner wrote: > On Fri, Oct 30, 2015 at 08:36:57AM -0400, Brian Foster wrote: > > On Fri, Oct 30, 2015 at 10:37:56AM +1100, Dave Chinner wrote: > > > On Thu, Oct 29, 2015 at 10:29:50AM -0400, Brian Foster wrote: > > > > On Mon, Oct 19, 2015 at 02:27:15PM +1100, Dave Chinner wrote: > > > > > From: Dave Chinner > > > > > > > ... > > > > > + /* > > > > > + * For DAX, we do not allocate unwritten extents, but instead we zero > > > > > + * the block before we commit the transaction. Ideally we'd like to do > > > > > + * this outside the transaction context, but if we commit and then crash > > > > > + * we may not have zeroed the blocks and this will be exposed on > > > > > + * recovery of the allocation. Hence we must zero before commit. > > > > > + * Further, if we are mapping unwritten extents here, we need to zero > > > > > + * and convert them to written so that we don't need an unwritten extent > > > > > + * callback for DAX. This also means that we need to be able to dip into > > > > > + * the reserve block pool if there is no space left but we need to do > > > > > + * unwritten extent conversion. > > > > > + */ > > > > > + if (IS_DAX(VFS_I(ip))) { > > > > > + bmapi_flags = XFS_BMAPI_CONVERT | XFS_BMAPI_ZERO; > > > > > + tp->t_flags |= XFS_TRANS_RESERVE; > > > > > + } > > > > > > > > Am I following the commit log description correctly in that block > > > > zeroing is only required for DAX faults? Do we zero blocks for DAX DIO > > > > as well to be consistent, or is that also required (because it looks > > > > like we still have end_io completion for dio writes anyways)? > > > > > > DAX DIO will do the zeroing rather than using unwritten extents, > > > too. But we still have DIO IO completion as that needs to do file > > > size updates. > > > > > > > Right, my question is: is the DAX DIO zeroing required to avoid the > > races described as the purpose for this patch, or is this just here as a > > simplification? In other words, why not do block zeroing only for DAX > > faults and not DAX/DIO? > > Because the only reason the DIO code does 'allocate unwritten; > convert unwritten on IO completion' is so that if we have: > > allocate > trans_commit > .... log force > journal IO submit > .... journal IO completion > submit data io > crash > > We don't expose allocated blocks containing stale data to userspace > via recovery. The allcoation uses unwritten extents to ensure that > if the allocation is recovered without the correspending completion, > it reads as zeros rather whatever was previously on disk in taht > location. > > For DAX, we can zero the blocks inside the allocation transaction > for direct IO, and hence even if we have the above happen, we'll > only ever expose zeros. Hence we don't need unwritten extents in the > DIO path to avoid stale data exposure, and so we can simply avoid > all that extra overhead of unwritten extent conversion on > completion... > Yeah, I get that bit. In fact, I was hoping to get to doing something similar for delalloc extents to deal with the similar issue there if the extent conversion makes it to the log and we crash before I/O (as I believe we've discussed in the past). That is for something unrelated, however... > > I ask because my understanding is the purpose of this patch is a special > > atomic zeroed allocation requirement just for mmap. > > The requirement is set by DAX+mmap; the implementation is a generic > "allocate zeroed blocks" mechanism that can be applied to any > allocation that uses unwritten extents to allocate zeroed blocks if > zeroing is more efficient than using unwritten extents.... > Ok, I take that to mean that there is no race or corruption vector so long as DAX/mmap uses the atomic zero allocation. The implementation mostly looks pretty good to me, but I suspect I'm not being clear with my question, which is... > > Unless there is some > > special mixed dio/mmap case I'm missing, doing so for DAX/DIO basically > > causes a clear_pmem() over every page sized chunk of the target I/O > > range for which we already have the data. > > I don't follow - this only zeros blocks when we do allocation of new > blocks or overwrite unwritten extents, not on blocks which we > already have written data extents allocated for... > Why are we assuming that block zeroing is more efficient than unwritten extents for DAX/dio? I haven't played with pmem enough to know for sure one way or another (or if hw support is imminent), but I'd expect the latter to be more efficient in general without any kind of hardware support. Just as an example, here's an 8GB pwrite test, large buffer size, to XFS on a ramdisk mounted with '-o dax:' - Before this series: # xfs_io -fc "truncate 0" -c "pwrite -b 10m 0 8g" /mnt/file wrote 8589934592/8589934592 bytes at offset 0 8.000 GiB, 820 ops; 0:00:04.00 (1.909 GiB/sec and 195.6591 ops/sec) - After this series: # xfs_io -fc "truncate 0" -c "pwrite -b 10m 0 8g" /mnt/file wrote 8589934592/8589934592 bytes at offset 0 8.000 GiB, 820 ops; 0:00:12.00 (659.790 MiB/sec and 66.0435 ops/sec) The impact is less with a smaller buffer size so the above is just meant to illustrate the point. FWIW, I'm also fine with getting this in as a matter of "correctness before performance" since this stuff is clearly still under development, but as far as I can see so far we should probably ultimately prefer unwritten extents for DAX/DIO (or at least plan to run some similar tests on real pmem hw). Thoughts? Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Nov 2 08:15:22 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2035C29DFC for ; Mon, 2 Nov 2015 08:15:22 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0CF148F8049 for ; Mon, 2 Nov 2015 06:15:21 -0800 (PST) X-ASG-Debug-ID: 1446473719-04cbb0660f1caf00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id xjB61qqgJtsmGEDU (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 02 Nov 2015 06:15:19 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 50C958CF43; Mon, 2 Nov 2015 14:15:19 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-105.bos.redhat.com [10.18.41.105]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA2EFIjP003857; Mon, 2 Nov 2015 09:15:19 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id E11521201AB; Mon, 2 Nov 2015 09:15:17 -0500 (EST) Date: Mon, 2 Nov 2015 09:15:17 -0500 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/7] xfs: introduce BMAPI_ZERO for allocating zeroed extents Message-ID: <20151102141517.GB29346@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/7] xfs: introduce BMAPI_ZERO for allocating zeroed extents References: <1446435735-1526-1-git-send-email-david@fromorbit.com> <1446435735-1526-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1446435735-1526-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446473719 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 02, 2015 at 02:42:10PM +1100, Dave Chinner wrote: > From: Dave Chinner > > To enable DAX to do atomic allocation of zeroed extents, we need to > drive the block zeroing deep into the allocator. Because > xfs_bmapi_write() can return merged extents on allocation that were > only partially allocated (i.e. requested range spans allocated and > hole regions, allocation into the hole was contiguous), we cannot > zero the extent returned from xfs_bmapi_write() as that can > overwrite existing data with zeros. > > Hence we have to drive the extent zeroing into the allocation code, > prior to where we merge the extents into the BMBT and return the > resultant map. This means we need to propagate this need down to > the xfs_alloc_vextent() and issue the block zeroing at this point. > > While this functionality is being introduced for DAX, there is no > reason why it is specific to DAX - we can per-zero blocks during the > allocation transaction on any type of device. It's just slow (and > usually slower than unwritten allocation and conversion) on > traditional block devices so doesn't tend to get used. We can, > however, hook hardware zeroing optimisations via sb_issue_zeroout() > to this operation, so it may be useful in future and hence the > "allocate zeroed blocks" API needs to be implementation neutral. > > Signed-off-by: Dave Chinner > --- Looks good with the assert fix: Reviewed-by: Brian Foster > fs/xfs/libxfs/xfs_alloc.c | 10 +++++++++- > fs/xfs/libxfs/xfs_alloc.h | 8 +++++--- > fs/xfs/libxfs/xfs_bmap.c | 35 +++++++++++++++++++++++++++++++++-- > fs/xfs/libxfs/xfs_bmap.h | 13 +++++++++++-- > fs/xfs/xfs_bmap_util.c | 36 ++++++++++++++++++++++++++++++++++++ > fs/xfs/xfs_mount.h | 3 +++ > 6 files changed, 97 insertions(+), 8 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c > index e926197..3479294 100644 > --- a/fs/xfs/libxfs/xfs_alloc.c > +++ b/fs/xfs/libxfs/xfs_alloc.c > @@ -2509,7 +2509,7 @@ xfs_alloc_vextent( > * Try near allocation first, then anywhere-in-ag after > * the first a.g. fails. > */ > - if ((args->userdata == XFS_ALLOC_INITIAL_USER_DATA) && > + if ((args->userdata & XFS_ALLOC_INITIAL_USER_DATA) && > (mp->m_flags & XFS_MOUNT_32BITINODES)) { > args->fsbno = XFS_AGB_TO_FSB(mp, > ((mp->m_agfrotor / rotorstep) % > @@ -2640,6 +2640,14 @@ xfs_alloc_vextent( > XFS_AG_CHECK_DADDR(mp, XFS_FSB_TO_DADDR(mp, args->fsbno), > args->len); > #endif > + > + /* Zero the extent if we were asked to do so */ > + if (args->userdata & XFS_ALLOC_USERDATA_ZERO) { > + error = xfs_zero_extent(args->ip, args->fsbno, args->len); > + if (error) > + goto error0; > + } > + > } > xfs_perag_put(args->pag); > return 0; > diff --git a/fs/xfs/libxfs/xfs_alloc.h b/fs/xfs/libxfs/xfs_alloc.h > index ca1c816..0ecde4d 100644 > --- a/fs/xfs/libxfs/xfs_alloc.h > +++ b/fs/xfs/libxfs/xfs_alloc.h > @@ -101,6 +101,7 @@ typedef struct xfs_alloc_arg { > struct xfs_mount *mp; /* file system mount point */ > struct xfs_buf *agbp; /* buffer for a.g. freelist header */ > struct xfs_perag *pag; /* per-ag struct for this agno */ > + struct xfs_inode *ip; /* for userdata zeroing method */ > xfs_fsblock_t fsbno; /* file system block number */ > xfs_agnumber_t agno; /* allocation group number */ > xfs_agblock_t agbno; /* allocation group-relative block # */ > @@ -120,15 +121,16 @@ typedef struct xfs_alloc_arg { > char wasdel; /* set if allocation was prev delayed */ > char wasfromfl; /* set if allocation is from freelist */ > char isfl; /* set if is freelist blocks - !acctg */ > - char userdata; /* set if this is user data */ > + char userdata; /* mask defining userdata treatment */ > xfs_fsblock_t firstblock; /* io first block allocated */ > } xfs_alloc_arg_t; > > /* > * Defines for userdata > */ > -#define XFS_ALLOC_USERDATA 1 /* allocation is for user data*/ > -#define XFS_ALLOC_INITIAL_USER_DATA 2 /* special case start of file */ > +#define XFS_ALLOC_USERDATA (1 << 0)/* allocation is for user data*/ > +#define XFS_ALLOC_INITIAL_USER_DATA (1 << 1)/* special case start of file */ > +#define XFS_ALLOC_USERDATA_ZERO (1 << 2)/* zero extent on allocation */ > > xfs_extlen_t xfs_alloc_longest_free_extent(struct xfs_mount *mp, > struct xfs_perag *pag, xfs_extlen_t need); > diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c > index ab92d10..119c242 100644 > --- a/fs/xfs/libxfs/xfs_bmap.c > +++ b/fs/xfs/libxfs/xfs_bmap.c > @@ -3802,8 +3802,13 @@ xfs_bmap_btalloc( > args.wasdel = ap->wasdel; > args.isfl = 0; > args.userdata = ap->userdata; > - if ((error = xfs_alloc_vextent(&args))) > + if (ap->userdata & XFS_ALLOC_USERDATA_ZERO) > + args.ip = ap->ip; > + > + error = xfs_alloc_vextent(&args); > + if (error) > return error; > + > if (tryagain && args.fsbno == NULLFSBLOCK) { > /* > * Exact allocation failed. Now try with alignment > @@ -4302,11 +4307,14 @@ xfs_bmapi_allocate( > > /* > * Indicate if this is the first user data in the file, or just any > - * user data. > + * user data. And if it is userdata, indicate whether it needs to > + * be initialised to zero during allocation. > */ > if (!(bma->flags & XFS_BMAPI_METADATA)) { > bma->userdata = (bma->offset == 0) ? > XFS_ALLOC_INITIAL_USER_DATA : XFS_ALLOC_USERDATA; > + if (bma->flags & XFS_BMAPI_ZERO) > + bma->userdata |= XFS_ALLOC_USERDATA_ZERO; > } > > bma->minlen = (bma->flags & XFS_BMAPI_CONTIG) ? bma->length : 1; > @@ -4421,6 +4429,17 @@ xfs_bmapi_convert_unwritten( > mval->br_state = (mval->br_state == XFS_EXT_UNWRITTEN) > ? XFS_EXT_NORM : XFS_EXT_UNWRITTEN; > > + /* > + * Before insertion into the bmbt, zero the range being converted > + * if required. > + */ > + if (flags & XFS_BMAPI_ZERO) { > + error = xfs_zero_extent(bma->ip, mval->br_startblock, > + mval->br_blockcount); > + if (error) > + return error; > + } > + > error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, &bma->idx, > &bma->cur, mval, bma->firstblock, bma->flist, > &tmp_logflags); > @@ -4514,6 +4533,18 @@ xfs_bmapi_write( > ASSERT(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_LOCAL); > ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); > > + /* zeroing is for currently only for data extents, not metadata */ > + ASSERT((flags & (XFS_BMAPI_METADATA | XFS_BMAPI_ZERO)) != > + (XFS_BMAPI_METADATA | XFS_BMAPI_ZERO)); > + /* > + * we can allocate unwritten extents or pre-zero allocated blocks, > + * but it makes no sense to do both at once. This would result in > + * zeroing the unwritten extent twice, but it still being an > + * unwritten extent.... > + */ > + ASSERT((flags & (XFS_BMAPI_PREALLOC | XFS_BMAPI_ZERO)) != > + (XFS_BMAPI_PREALLOC | XFS_BMAPI_ZERO)); > + > if (unlikely(XFS_TEST_ERROR( > (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS && > XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE), > diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h > index 6aaa0c1..a160f8a 100644 > --- a/fs/xfs/libxfs/xfs_bmap.h > +++ b/fs/xfs/libxfs/xfs_bmap.h > @@ -52,9 +52,9 @@ struct xfs_bmalloca { > xfs_extlen_t minleft; /* amount must be left after alloc */ > bool eof; /* set if allocating past last extent */ > bool wasdel; /* replacing a delayed allocation */ > - bool userdata;/* set if is user data */ > bool aeof; /* allocated space at eof */ > bool conv; /* overwriting unwritten extents */ > + char userdata;/* userdata mask */ > int flags; > }; > > @@ -109,6 +109,14 @@ typedef struct xfs_bmap_free > */ > #define XFS_BMAPI_CONVERT 0x040 > > +/* > + * allocate zeroed extents - this requires all newly allocated user data extents > + * to be initialised to zero. It will be ignored if XFS_BMAPI_METADATA is set. > + * Use in conjunction with XFS_BMAPI_CONVERT to convert unwritten extents found > + * during the allocation range to zeroed written extents. > + */ > +#define XFS_BMAPI_ZERO 0x080 > + > #define XFS_BMAPI_FLAGS \ > { XFS_BMAPI_ENTIRE, "ENTIRE" }, \ > { XFS_BMAPI_METADATA, "METADATA" }, \ > @@ -116,7 +124,8 @@ typedef struct xfs_bmap_free > { XFS_BMAPI_PREALLOC, "PREALLOC" }, \ > { XFS_BMAPI_IGSTATE, "IGSTATE" }, \ > { XFS_BMAPI_CONTIG, "CONTIG" }, \ > - { XFS_BMAPI_CONVERT, "CONVERT" } > + { XFS_BMAPI_CONVERT, "CONVERT" }, \ > + { XFS_BMAPI_ZERO, "ZERO" } > > > static inline int xfs_bmapi_aflag(int w) > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > index eca325e..dbae649 100644 > --- a/fs/xfs/xfs_bmap_util.c > +++ b/fs/xfs/xfs_bmap_util.c > @@ -57,6 +57,35 @@ xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb) > } > > /* > + * Routine to zero an extent on disk allocated to the specific inode. > + * > + * The VFS functions take a linearised filesystem block offset, so we have to > + * convert the sparse xfs fsb to the right format first. > + * VFS types are real funky, too. > + */ > +int > +xfs_zero_extent( > + struct xfs_inode *ip, > + xfs_fsblock_t start_fsb, > + xfs_off_t count_fsb) > +{ > + struct xfs_mount *mp = ip->i_mount; > + xfs_daddr_t sector = xfs_fsb_to_db(ip, start_fsb); > + sector_t block = XFS_BB_TO_FSBT(mp, sector); > + ssize_t size = XFS_FSB_TO_B(mp, count_fsb); > + > + if (IS_DAX(VFS_I(ip))) > + return dax_clear_blocks(VFS_I(ip), block, size); > + > + /* > + * let the block layer decide on the fastest method of > + * implementing the zeroing. > + */ > + return sb_issue_zeroout(mp->m_super, block, count_fsb, GFP_NOFS); > + > +} > + > +/* > * Routine to be called at transaction's end by xfs_bmapi, xfs_bunmapi > * caller. Frees all the extents that need freeing, which must be done > * last due to locking considerations. We never free any extents in > @@ -229,6 +258,13 @@ xfs_bmap_rtalloc( > xfs_trans_mod_dquot_byino(ap->tp, ap->ip, > ap->wasdel ? XFS_TRANS_DQ_DELRTBCOUNT : > XFS_TRANS_DQ_RTBCOUNT, (long) ralen); > + > + /* Zero the extent if we were asked to do so */ > + if (ap->userdata & XFS_ALLOC_USERDATA_ZERO) { > + error = xfs_zero_extent(ap->ip, ap->blkno, ap->length); > + if (error) > + return error; > + } > } else { > ap->length = 0; > } > diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h > index 8795272..f20e5de 100644 > --- a/fs/xfs/xfs_mount.h > +++ b/fs/xfs/xfs_mount.h > @@ -337,4 +337,7 @@ extern int xfs_dev_is_read_only(struct xfs_mount *, char *); > > extern void xfs_set_low_space_thresholds(struct xfs_mount *); > > +int xfs_zero_extent(struct xfs_inode *ip, xfs_fsblock_t start_fsb, > + xfs_off_t count_fsb); > + > #endif /* __XFS_MOUNT_H__ */ > -- > 2.5.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Nov 2 08:15:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D40B429DFC for ; Mon, 2 Nov 2015 08:15:33 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9B9968F8037 for ; Mon, 2 Nov 2015 06:15:33 -0800 (PST) X-ASG-Debug-ID: 1446473732-04bdf0330b1cfe00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id PH0nwoY4njOuqMY9 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 02 Nov 2015 06:15:32 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id F1AEB8F289; Mon, 2 Nov 2015 14:15:31 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-105.bos.redhat.com [10.18.41.105]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA2EFVEU001554; Mon, 2 Nov 2015 09:15:31 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 8FFAF1201AB; Mon, 2 Nov 2015 09:15:30 -0500 (EST) Date: Mon, 2 Nov 2015 09:15:30 -0500 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/7] xfs: Don't use unwritten extents for DAX Message-ID: <20151102141530.GC29346@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/7] xfs: Don't use unwritten extents for DAX References: <1446435735-1526-1-git-send-email-david@fromorbit.com> <1446435735-1526-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1446435735-1526-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446473732 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 02, 2015 at 02:42:11PM +1100, Dave Chinner wrote: > From: Dave Chinner > > DAX has a page fault serialisation problem with block allocation. > Because it allows concurrent page faults and does not have a page > lock to serialise faults to the same page, it can get two concurrent > faults to the page that race. > > When two read faults race, this isn't a huge problem as the data > underlying the page is not changing and so "detect and drop" works > just fine. The issues are to do with write faults. > > When two write faults occur, we serialise block allocation in > get_blocks() so only one faul will allocate the extent. It will, > however, be marked as an unwritten extent, and that is where the > problem lies - the DAX fault code cannot differentiate between a > block that was just allocated and a block that was preallocated and > needs zeroing. The result is that both write faults end up zeroing > the block and attempting to convert it back to written. > > The problem is that the first fault can zero and convert before the > second fault starts zeroing, resulting in the zeroing for the second > fault overwriting the data that the first fault wrote with zeros. > The second fault then attempts to convert the unwritten extent, > which is then a no-op because it's already written. Data loss occurs > as a result of this race. > > Because there is no sane locking construct in the page fault code > that we can use for serialisation across the page faults, we need to > ensure block allocation and zeroing occurs atomically in the > filesystem. This means we can still take concurrent page faults and > the only time they will serialise is in the filesystem > mapping/allocation callback. The page fault code will always see > written, initialised extents, so we will be able to remove the > unwritten extent handling from the DAX code when all filesystems are > converted. > > Signed-off-by: Dave Chinner > --- I'm still not convinced that block zeroing is the right thing to do for DAX/dio (re: the discussion on the previous version), but the code looks fine to me and we should be able to easily optimize this in a separate patch if warranted: Reviewed-by: Brian Foster > fs/dax.c | 5 +++++ > fs/xfs/xfs_aops.c | 13 +++++++++---- > fs/xfs/xfs_iomap.c | 21 ++++++++++++++++++++- > 3 files changed, 34 insertions(+), 5 deletions(-) > > diff --git a/fs/dax.c b/fs/dax.c > index a86d3cc..131fd35a 100644 > --- a/fs/dax.c > +++ b/fs/dax.c > @@ -29,6 +29,11 @@ > #include > #include > > +/* > + * dax_clear_blocks() is called from within transaction context from XFS, > + * and hence this means the stack from this point must follow GFP_NOFS > + * semantics for all operations. > + */ > int dax_clear_blocks(struct inode *inode, sector_t block, long size) > { > struct block_device *bdev = inode->i_sb->s_bdev; > diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c > index 366e41eb..7b4f849 100644 > --- a/fs/xfs/xfs_aops.c > +++ b/fs/xfs/xfs_aops.c > @@ -1293,15 +1293,12 @@ xfs_map_direct( > > trace_xfs_gbmap_direct(XFS_I(inode), offset, size, type, imap); > > - /* XXX: preparation for removing unwritten extents in DAX */ > -#if 0 > if (dax_fault) { > ASSERT(type == XFS_IO_OVERWRITE); > trace_xfs_gbmap_direct_none(XFS_I(inode), offset, size, type, > imap); > return; > } > -#endif > > if (bh_result->b_private) { > ioend = bh_result->b_private; > @@ -1429,10 +1426,12 @@ __xfs_get_blocks( > if (error) > goto out_unlock; > > + /* for DAX, we convert unwritten extents directly */ > if (create && > (!nimaps || > (imap.br_startblock == HOLESTARTBLOCK || > - imap.br_startblock == DELAYSTARTBLOCK))) { > + imap.br_startblock == DELAYSTARTBLOCK) || > + (IS_DAX(inode) && ISUNWRITTEN(&imap)))) { > if (direct || xfs_get_extsz_hint(ip)) { > /* > * xfs_iomap_write_direct() expects the shared lock. It > @@ -1477,6 +1476,12 @@ __xfs_get_blocks( > goto out_unlock; > } > > + if (IS_DAX(inode) && create) { > + ASSERT(!ISUNWRITTEN(&imap)); > + /* zeroing is not needed at a higher layer */ > + new = 0; > + } > + > /* trim mapping down to size requested */ > if (direct || size > (1 << inode->i_blkbits)) > xfs_map_trim_size(inode, iblock, bh_result, > diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c > index c3cb5a5..f4f5b43 100644 > --- a/fs/xfs/xfs_iomap.c > +++ b/fs/xfs/xfs_iomap.c > @@ -132,6 +132,7 @@ xfs_iomap_write_direct( > int committed; > int error; > int lockmode; > + int bmapi_flags = XFS_BMAPI_PREALLOC; > > rt = XFS_IS_REALTIME_INODE(ip); > extsz = xfs_get_extsz_hint(ip); > @@ -195,6 +196,23 @@ xfs_iomap_write_direct( > * Allocate and setup the transaction > */ > tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT); > + > + /* > + * For DAX, we do not allocate unwritten extents, but instead we zero > + * the block before we commit the transaction. Ideally we'd like to do > + * this outside the transaction context, but if we commit and then crash > + * we may not have zeroed the blocks and this will be exposed on > + * recovery of the allocation. Hence we must zero before commit. > + * Further, if we are mapping unwritten extents here, we need to zero > + * and convert them to written so that we don't need an unwritten extent > + * callback for DAX. This also means that we need to be able to dip into > + * the reserve block pool if there is no space left but we need to do > + * unwritten extent conversion. > + */ > + if (IS_DAX(VFS_I(ip))) { > + bmapi_flags = XFS_BMAPI_CONVERT | XFS_BMAPI_ZERO; > + tp->t_flags |= XFS_TRANS_RESERVE; > + } > error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write, > resblks, resrtextents); > /* > @@ -221,7 +239,7 @@ xfs_iomap_write_direct( > xfs_bmap_init(&free_list, &firstfsb); > nimaps = 1; > error = xfs_bmapi_write(tp, ip, offset_fsb, count_fsb, > - XFS_BMAPI_PREALLOC, &firstfsb, resblks, imap, > + bmapi_flags, &firstfsb, resblks, imap, > &nimaps, &free_list); > if (error) > goto out_bmap_cancel; > @@ -232,6 +250,7 @@ xfs_iomap_write_direct( > error = xfs_bmap_finish(&tp, &free_list, &committed); > if (error) > goto out_bmap_cancel; > + > error = xfs_trans_commit(tp); > if (error) > goto out_unlock; > -- > 2.5.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Nov 2 08:15:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 138DB29E03 for ; Mon, 2 Nov 2015 08:15:47 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6978EAC001 for ; Mon, 2 Nov 2015 06:15:43 -0800 (PST) X-ASG-Debug-ID: 1446473741-04cbb0660d1caf70001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id s6H4PaIItnbqTYZA (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 02 Nov 2015 06:15:41 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 402AAC1C7500; Mon, 2 Nov 2015 14:15:41 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-105.bos.redhat.com [10.18.41.105]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA2EFeMb004038; Mon, 2 Nov 2015 09:15:41 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id F03D21201AB; Mon, 2 Nov 2015 09:15:39 -0500 (EST) Date: Mon, 2 Nov 2015 09:15:39 -0500 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 7/7] xfs: optimise away log forces on timestamp updates for fdatasync Message-ID: <20151102141539.GD29346@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 7/7] xfs: optimise away log forces on timestamp updates for fdatasync References: <1446435735-1526-1-git-send-email-david@fromorbit.com> <1446435735-1526-8-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1446435735-1526-8-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446473741 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 02, 2015 at 02:42:15PM +1100, Dave Chinner wrote: > From: Dave Chinner > > xfs: timestamp updates cause excessive fdatasync log traffic > > Sage Weil reported that a ceph test workload was writing to the > log on every fdatasync during an overwrite workload. Event tracing > showed that the only metadata modification being made was the > timestamp updates during the write(2) syscall, but fdatasync(2) > is supposed to ignore them. The key observation was that the > transactions in the log all looked like this: > > INODE: #regs: 4 ino: 0x8b flags: 0x45 dsize: 32 > > And contained a flags field of 0x45 or 0x85, and had data and > attribute forks following the inode core. This means that the > timestamp updates were triggering dirty relogging of previously > logged parts of the inode that hadn't yet been flushed back to > disk. > > There are two parts to this problem. The first is that XFS relogs > dirty regions in subsequent transactions, so it carries around the > fields that have been dirtied since the last time the inode was > written back to disk, not since the last time the inode was forced > into the log. > > The second part is that on v5 filesystems, the inode change count > update during inode dirtying also sets the XFS_ILOG_CORE flag, so > on v5 filesystems this makes a timestamp update dirty the entire > inode. > > As a result when fdatasync is run, it looks at the dirty fields in > the inode, and sees more than just the timestamp flag, even though > the only metadata change since the last fdatasync was just the > timestamps. Hence we force the log on every subsequent fdatasync > even though it is not needed. > > To fix this, add a new field to the inode log item that tracks > changes since the last time fsync/fdatasync forced the log to flush > the changes to the journal. This flag is updated when we dirty the > inode, but we do it before updating the change count so it does not > carry the "core dirty" flag from timestamp updates. The fields are > zeroed when the inode is marked clean (due to writeback/freeing) or > when an fsync/datasync forces the log. Hence if we only dirty the > timestamps on the inode between fsync/fdatasync calls, the fdatasync > will not trigger another log force. > > Over 100 runs of the test program: > > Ext4 baseline: > runtime: 1.63s +/- 0.24s > avg lat: 1.59ms +/- 0.24ms > iops: ~2000 > > XFS, vanilla kernel: > runtime: 2.45s +/- 0.18s > avg lat: 2.39ms +/- 0.18ms > log forces: ~400/s > iops: ~1000 > > XFS, patched kernel: > runtime: 1.49s +/- 0.26s > avg lat: 1.46ms +/- 0.25ms > log forces: ~30/s > iops: ~1500 > > Reported-by: Sage Weil > Signed-off-by: Dave Chinner > --- Looks good: Reviewed-by: Brian Foster > fs/xfs/xfs_file.c | 21 ++++++++++++++++----- > fs/xfs/xfs_inode.c | 2 ++ > fs/xfs/xfs_inode_item.c | 1 + > fs/xfs/xfs_inode_item.h | 1 + > fs/xfs/xfs_trans_inode.c | 9 +++++++++ > 5 files changed, 29 insertions(+), 5 deletions(-) > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 0045b0a..39743ef 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -242,19 +242,30 @@ xfs_file_fsync( > } > > /* > - * All metadata updates are logged, which means that we just have > - * to flush the log up to the latest LSN that touched the inode. > + * All metadata updates are logged, which means that we just have to > + * flush the log up to the latest LSN that touched the inode. If we have > + * concurrent fsync/fdatasync() calls, we need them to all block on the > + * log force before we clear the ili_fsync_fields field. This ensures > + * that we don't get a racing sync operation that does not wait for the > + * metadata to hit the journal before returning. If we race with > + * clearing the ili_fsync_fields, then all that will happen is the log > + * force will do nothing as the lsn will already be on disk. We can't > + * race with setting ili_fsync_fields because that is done under > + * XFS_ILOCK_EXCL, and that can't happen because we hold the lock shared > + * until after the ili_fsync_fields is cleared. > */ > xfs_ilock(ip, XFS_ILOCK_SHARED); > if (xfs_ipincount(ip)) { > if (!datasync || > - (ip->i_itemp->ili_fields & ~XFS_ILOG_TIMESTAMP)) > + (ip->i_itemp->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP)) > lsn = ip->i_itemp->ili_last_lsn; > } > - xfs_iunlock(ip, XFS_ILOCK_SHARED); > > - if (lsn) > + if (lsn) { > error = _xfs_log_force_lsn(mp, lsn, XFS_LOG_SYNC, &log_flushed); > + ip->i_itemp->ili_fsync_fields = 0; > + } > + xfs_iunlock(ip, XFS_ILOCK_SHARED); > > /* > * If we only have a single device, and the log force about was > diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c > index a0f2bae..8ee3939 100644 > --- a/fs/xfs/xfs_inode.c > +++ b/fs/xfs/xfs_inode.c > @@ -2365,6 +2365,7 @@ retry: > > iip->ili_last_fields = iip->ili_fields; > iip->ili_fields = 0; > + iip->ili_fsync_fields = 0; > iip->ili_logged = 1; > xfs_trans_ail_copy_lsn(mp->m_ail, &iip->ili_flush_lsn, > &iip->ili_item.li_lsn); > @@ -3560,6 +3561,7 @@ xfs_iflush_int( > */ > iip->ili_last_fields = iip->ili_fields; > iip->ili_fields = 0; > + iip->ili_fsync_fields = 0; > iip->ili_logged = 1; > > xfs_trans_ail_copy_lsn(mp->m_ail, &iip->ili_flush_lsn, > diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c > index 62bd80f..d14b12b 100644 > --- a/fs/xfs/xfs_inode_item.c > +++ b/fs/xfs/xfs_inode_item.c > @@ -719,6 +719,7 @@ xfs_iflush_abort( > * attempted. > */ > iip->ili_fields = 0; > + iip->ili_fsync_fields = 0; > } > /* > * Release the inode's flush lock since we're done with it. > diff --git a/fs/xfs/xfs_inode_item.h b/fs/xfs/xfs_inode_item.h > index 488d812..4c7722e 100644 > --- a/fs/xfs/xfs_inode_item.h > +++ b/fs/xfs/xfs_inode_item.h > @@ -34,6 +34,7 @@ typedef struct xfs_inode_log_item { > unsigned short ili_logged; /* flushed logged data */ > unsigned int ili_last_fields; /* fields when flushed */ > unsigned int ili_fields; /* fields to be logged */ > + unsigned int ili_fsync_fields; /* logged since last fsync */ > } xfs_inode_log_item_t; > > static inline int xfs_inode_clean(xfs_inode_t *ip) > diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c > index 17280cd..b97f1df 100644 > --- a/fs/xfs/xfs_trans_inode.c > +++ b/fs/xfs/xfs_trans_inode.c > @@ -108,6 +108,15 @@ xfs_trans_log_inode( > ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); > > /* > + * Record the specific change for fdatasync optimisation. This > + * allows fdatasync to skip log forces for inodes that are only > + * timestamp dirty. We do this before the change count so that > + * the core being logged in this case does not impact on fdatasync > + * behaviour. > + */ > + ip->i_itemp->ili_fsync_fields |= flags; > + > + /* > * First time we log the inode in a transaction, bump the inode change > * counter if it is configured for this to occur. We don't use > * inode_inc_version() because there is no need for extra locking around > -- > 2.5.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From jmoyer@redhat.com Mon Nov 2 08:22:23 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6F47829DF5 for ; Mon, 2 Nov 2015 08:22:23 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4D28F8F8033 for ; Mon, 2 Nov 2015 06:22:23 -0800 (PST) X-ASG-Debug-ID: 1446474141-04cb6c7b851b73d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id nDSXQs6lHv8cxaUK (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 02 Nov 2015 06:22:22 -0800 (PST) X-Barracuda-Envelope-From: jmoyer@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 7CCB48E22B; Mon, 2 Nov 2015 14:22:19 +0000 (UTC) Received: from segfault.boston.devel.redhat.com (segfault.boston.devel.redhat.com [10.19.60.26]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA2EMFOY009695 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 2 Nov 2015 09:22:16 -0500 From: Jeff Moyer To: Dave Chinner Cc: Ross Zwisler , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@ml01.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox Subject: Re: [RFC 00/11] DAX fsynx/msync support References: <1446149535-16200-1-git-send-email-ross.zwisler@linux.intel.com> <20151030035533.GU19199@dastard> <20151030183938.GC24643@linux.intel.com> <20151101232948.GF10656@dastard> X-ASG-Orig-Subj: Re: [RFC 00/11] DAX fsynx/msync support X-PGP-KeyID: 1F78E1B4 X-PGP-CertKey: F6FE 280D 8293 F72C 65FD 5A58 1FF8 A7CA 1F78 E1B4 X-PCLoadLetter: What the f**k does that mean? Date: Mon, 02 Nov 2015 09:22:15 -0500 In-Reply-To: <20151101232948.GF10656@dastard> (Dave Chinner's message of "Mon, 2 Nov 2015 10:29:48 +1100") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446474142 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Dave Chinner writes: > Further, REQ_FLUSH/REQ_FUA are more than just "put the data on stable > storage" commands. They are also IO barriers that affect scheduling > of IOs in progress and in the request queues. A REQ_FLUSH/REQ_FUA > IO cannot be dispatched before all prior IO has been dispatched and > drained from the request queue, and IO submitted after a queued > REQ_FLUSH/REQ_FUA cannot be scheduled ahead of the queued > REQ_FLUSH/REQ_FUA operation. > > IOWs, REQ_FUA/REQ_FLUSH not only guarantee data is on stable > storage, they also guarantee the order of IO dispatch and > completion when concurrent IO is in progress. This hasn't been the case for several years, now. It used to work that way, and that was deemed a big performance problem. Since file systems already issued and waited for all I/O before sending down a barrier, we decided to get rid of the I/O ordering pieces of barriers (and stop calling them barriers). See commit 28e7d184521 (block: drop barrier ordering by queue draining). Cheers, Jeff From darrick.wong@oracle.com Mon Nov 2 11:56:28 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B41DA7F59 for ; Mon, 2 Nov 2015 11:56:28 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id A724B304059 for ; Mon, 2 Nov 2015 09:56:28 -0800 (PST) X-ASG-Debug-ID: 1446486986-04cbb0660d1d4770001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id S7weeifthxfFE2PJ (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 02 Nov 2015 09:56:26 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tA2HuLjV002449 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 2 Nov 2015 17:56:21 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tA2HuLUA000878 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Mon, 2 Nov 2015 17:56:21 GMT Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tA2HuKwH017143; Mon, 2 Nov 2015 17:56:20 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 02 Nov 2015 09:56:20 -0800 Date: Mon, 2 Nov 2015 09:56:19 -0800 From: "Darrick J. Wong" To: Dave Chinner Cc: xfs@oss.sgi.com Subject: [PATCH] xfs: don't leak uuid table on rmmod Message-ID: <20151102175619.GA2224@birch.djwong.org> X-ASG-Orig-Subj: [PATCH] xfs: don't leak uuid table on rmmod MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1446486986 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24041 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Don't leak the UUID table when the module is unloaded. (Found with kmemleak.) Signed-off-by: Darrick J. Wong --- fs/xfs/xfs_mount.c | 10 ++++++++++ fs/xfs/xfs_mount.h | 1 + fs/xfs/xfs_super.c | 1 + 3 files changed, 12 insertions(+) diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index bf92e0c..fe6fe8a 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -47,6 +47,16 @@ static DEFINE_MUTEX(xfs_uuid_table_mutex); static int xfs_uuid_table_size; static uuid_t *xfs_uuid_table; +void +xfs_uuid_table_free(void) +{ + if (xfs_uuid_table_size == 0) + return; + kmem_free(xfs_uuid_table); + xfs_uuid_table = NULL; + xfs_uuid_table_size = 0; +} + /* * See if the UUID is unique among mounted XFS filesystems. * Mount fails if UUID is nil or a FS with the same UUID is already mounted. diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 7999e91..d6cbdcb 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -312,6 +312,7 @@ typedef struct xfs_perag { int pagb_count; /* pagb slots in use */ } xfs_perag_t; +extern void xfs_uuid_table_free(void); extern int xfs_log_sbcount(xfs_mount_t *); extern __uint64_t xfs_default_resblks(xfs_mount_t *mp); extern int xfs_mountfs(xfs_mount_t *mp); diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 904f637..29531ec 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1896,6 +1896,7 @@ exit_xfs_fs(void) xfs_mru_cache_uninit(); xfs_destroy_workqueues(); xfs_destroy_zones(); + xfs_uuid_table_free(); } module_init(init_xfs_fs); From agruenba@redhat.com Mon Nov 2 13:53:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A5FCA29DF5 for ; Mon, 2 Nov 2015 13:53:01 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 49A658F8033 for ; Mon, 2 Nov 2015 11:53:01 -0800 (PST) X-ASG-Debug-ID: 1446493979-04bdf0330b1deb20001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id HuVVsQFokrKBeHMA (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 02 Nov 2015 11:52:59 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id EF1A6461E7; Mon, 2 Nov 2015 19:52:58 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA2JqtJJ019637; Mon, 2 Nov 2015 14:52:56 -0500 From: Andreas Gruenbacher To: Dave Chinner Cc: Brian Foster , xfs@oss.sgi.com, Andreas Gruenbacher Subject: Re: [PATCH v2 0/5] xfs: SGI ACL Fixes Date: Mon, 2 Nov 2015 20:52:52 +0100 X-ASG-Orig-Subj: Re: [PATCH v2 0/5] xfs: SGI ACL Fixes Message-Id: <1446493974-24669-1-git-send-email-agruenba@redhat.com> References: <1446217508-22157-1-git-send-email-agruenba@redhat.com> <20151102025352.GY19199@dastard> In-Reply-To: <20151102025352.GY19199@dastard> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446493979 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 2, 2015 at 3:53 AM, Dave Chinner wrote: > Ok, I've taken these two patches for the upcoming merge window as > they fix bugs, but I've taken Brian's cached ACL invalidation patch > instead [...] Then you'll also need these two patches. Andreas Andreas Gruenbacher (2): xfs: Fixes to "invalidate cached acl if set directly via xattr" xfs: invalidate cached acl if set via ioctl fs/xfs/xfs_acl.h | 3 +++ fs/xfs/xfs_ioctl.c | 10 +++++++++- fs/xfs/xfs_xattr.c | 36 ++++++++++++++++++++++++------------ 3 files changed, 36 insertions(+), 13 deletions(-) -- 2.5.0 From agruenba@redhat.com Mon Nov 2 13:53:03 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B1E6D29DFC for ; Mon, 2 Nov 2015 13:53:03 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id A5F298F8033 for ; Mon, 2 Nov 2015 11:53:03 -0800 (PST) X-ASG-Debug-ID: 1446493982-04cb6c7b871c3620001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 2yb6DS8KnSCIsBKF (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 02 Nov 2015 11:53:02 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 05DC18E706; Mon, 2 Nov 2015 19:53:02 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA2JqtJK019637; Mon, 2 Nov 2015 14:52:59 -0500 From: Andreas Gruenbacher To: Dave Chinner Cc: Brian Foster , xfs@oss.sgi.com, Andreas Gruenbacher , Andreas Gruenbacher Subject: [PATCH 1/2] xfs: Fixes to "invalidate cached acl if set directly via xattr" Date: Mon, 2 Nov 2015 20:52:53 +0100 X-ASG-Orig-Subj: [PATCH 1/2] xfs: Fixes to "invalidate cached acl if set directly via xattr" Message-Id: <1446493974-24669-2-git-send-email-agruenba@redhat.com> In-Reply-To: <1446493974-24669-1-git-send-email-agruenba@redhat.com> References: <1446493974-24669-1-git-send-email-agruenba@redhat.com> References: <1446217508-22157-1-git-send-email-agruenba@redhat.com> <20151102025352.GY19199@dastard> In-Reply-To: <20151102025352.GY19199@dastard> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446493982 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Don't match arbitrary name prefixes like "S" when checking for the attribute names "SGI_ACL_{FILE,DEFAULT}". Function forget_cached_acl only exists in kernels that have POSIX ACL support; guard calls to that function by CONFIG_XFS_POSIX_ACL. Signed-off-by: Andreas Gruenbacher --- fs/xfs/xfs_xattr.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c index 2e1eb80..1542d64 100644 --- a/fs/xfs/xfs_xattr.c +++ b/fs/xfs/xfs_xattr.c @@ -80,10 +80,12 @@ xfs_xattr_set(struct dentry *dentry, const char *name, const void *value, * consistent. */ if (!error && (xflags & ATTR_ROOT)) { - if (!strncmp(name, SGI_ACL_FILE, strlen(name))) +#ifdef CONFIG_XFS_POSIX_ACL + if (!strcmp(name, SGI_ACL_FILE) forget_cached_acl(VFS_I(ip), ACL_TYPE_ACCESS); - else if (!strncmp(name, SGI_ACL_DEFAULT, strlen(name))) + else if (!strcmp(name, SGI_ACL_DEFAULT)) forget_cached_acl(VFS_I(ip), ACL_TYPE_DEFAULT); +#endif } return error; -- 2.5.0 From agruenba@redhat.com Mon Nov 2 13:53:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8F3A229DF5 for ; Mon, 2 Nov 2015 13:53:09 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 299A4AC002 for ; Mon, 2 Nov 2015 11:53:05 -0800 (PST) X-ASG-Debug-ID: 1446493984-04bdf0330a1deb20001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id pJq5CHtmIVZH9F5f (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 02 Nov 2015 11:53:05 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id BBDCACDE; Mon, 2 Nov 2015 19:53:04 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA2JqtJL019637; Mon, 2 Nov 2015 14:53:02 -0500 From: Andreas Gruenbacher To: Dave Chinner Cc: Brian Foster , xfs@oss.sgi.com, Andreas Gruenbacher Subject: [PATCH 2/2] xfs: invalidate cached acl if set via ioctl Date: Mon, 2 Nov 2015 20:52:54 +0100 X-ASG-Orig-Subj: [PATCH 2/2] xfs: invalidate cached acl if set via ioctl Message-Id: <1446493974-24669-3-git-send-email-agruenba@redhat.com> In-Reply-To: <1446493974-24669-1-git-send-email-agruenba@redhat.com> References: <1446493974-24669-1-git-send-email-agruenba@redhat.com> References: <1446217508-22157-1-git-send-email-agruenba@redhat.com> <20151102025352.GY19199@dastard> In-Reply-To: <20151102025352.GY19199@dastard> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446493984 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Setting or removing the "SGI_ACL_[FILE|DEFAULT]" attributes via the XFS_IOC_ATTRMULTI_BY_HANDLE ioctl completely bypasses the POSIX ACL infrastructure, like setting the "trusted.SGI_ACL_[FILE|DEFAULT]" xattrs did until commit 6caa1056. Similar to that commit, invalidate cached acls when setting/removing them via the ioctl as well. Signed-off-by: Andreas Gruenbacher --- fs/xfs/xfs_acl.h | 3 +++ fs/xfs/xfs_ioctl.c | 10 +++++++++- fs/xfs/xfs_xattr.c | 38 ++++++++++++++++++++++++-------------- 3 files changed, 36 insertions(+), 15 deletions(-) diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h index 3841b07..75af0a4 100644 --- a/fs/xfs/xfs_acl.h +++ b/fs/xfs/xfs_acl.h @@ -36,4 +36,7 @@ static inline struct posix_acl *xfs_get_acl(struct inode *inode, int type) # define posix_acl_access_exists(inode) 0 # define posix_acl_default_exists(inode) 0 #endif /* CONFIG_XFS_POSIX_ACL */ + +extern void xfs_forget_acl(struct inode *inode, const char *name, int xflags); + #endif /* __XFS_ACL_H__ */ diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 66bcfbd..d42738d 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -40,6 +40,7 @@ #include "xfs_symlink.h" #include "xfs_trans.h" #include "xfs_pnfs.h" +#include "xfs_acl.h" #include #include @@ -494,6 +495,8 @@ xfs_attrmulti_attr_set( return PTR_ERR(kbuf); error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags); + if (!error) + xfs_forget_acl(inode, name, flags); kfree(kbuf); return error; } @@ -504,9 +507,14 @@ xfs_attrmulti_attr_remove( unsigned char *name, __uint32_t flags) { + int error; + if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) return -EPERM; - return xfs_attr_remove(XFS_I(inode), name, flags); + error = xfs_attr_remove(XFS_I(inode), name, flags); + if (!error) + xfs_forget_acl(inode, name, flags); + return error; } STATIC int diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c index 1542d64..8294f86 100644 --- a/fs/xfs/xfs_xattr.c +++ b/fs/xfs/xfs_xattr.c @@ -53,6 +53,28 @@ xfs_xattr_get(struct dentry *dentry, const char *name, return asize; } +void +xfs_forget_acl( + struct inode *inode, + const char *name, + int xflags) +{ + /* + * Invalidate any cached ACLs if the user has bypassed the ACL + * interface. We don't validate the content whatsoever so it is caller + * responsibility to provide data in valid format and ensure i_mode is + * consistent. + */ + if (xflags & ATTR_ROOT) { +#ifdef CONFIG_XFS_POSIX_ACL + if (!strcmp(name, SGI_ACL_FILE)) + forget_cached_acl(inode, ACL_TYPE_ACCESS); + else if (!strcmp(name, SGI_ACL_DEFAULT)) + forget_cached_acl(inode, ACL_TYPE_DEFAULT); +#endif + } +} + static int xfs_xattr_set(struct dentry *dentry, const char *name, const void *value, size_t size, int flags, int xflags) @@ -73,20 +95,8 @@ xfs_xattr_set(struct dentry *dentry, const char *name, const void *value, return xfs_attr_remove(ip, (unsigned char *)name, xflags); error = xfs_attr_set(ip, (unsigned char *)name, (void *)value, size, xflags); - /* - * Invalidate any cached ACLs if the user has bypassed the ACL - * interface. We don't validate the content whatsoever so it is caller - * responsibility to provide data in valid format and ensure i_mode is - * consistent. - */ - if (!error && (xflags & ATTR_ROOT)) { -#ifdef CONFIG_XFS_POSIX_ACL - if (!strcmp(name, SGI_ACL_FILE) - forget_cached_acl(VFS_I(ip), ACL_TYPE_ACCESS); - else if (!strcmp(name, SGI_ACL_DEFAULT)) - forget_cached_acl(VFS_I(ip), ACL_TYPE_DEFAULT); -#endif - } + if (!error) + xfs_forget_acl(d_inode(dentry), name, xflags); return error; } -- 2.5.0 From david@fromorbit.com Mon Nov 2 14:10:50 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9245029DF5 for ; Mon, 2 Nov 2015 14:10:50 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 73C538F8035 for ; Mon, 2 Nov 2015 12:10:47 -0800 (PST) X-ASG-Debug-ID: 1446495044-04cbb0660f1d9020001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id aFzwLt9VIARhNHd8 for ; Mon, 02 Nov 2015 12:10:44 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CdBwBvwjdW/+rW03ZegzuBQqpFAQEBAQEBBosuiy+GEwICAQECgTtNAQEBAQEBgQuENgEBBCcTHCMQCAMOCgklDwUlAyETiC/BbgEBCAIBIBmGF4VFhEeEeQWWQ4gNhRCcQmOCER2Baio0hDWBSQEBAQ Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 03 Nov 2015 06:40:42 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZtLQz-0002wo-8v; Tue, 03 Nov 2015 07:10:29 +1100 Date: Tue, 3 Nov 2015 07:10:29 +1100 From: Dave Chinner To: Jeff Moyer Cc: Ross Zwisler , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@ml01.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox Subject: Re: [RFC 00/11] DAX fsynx/msync support Message-ID: <20151102201029.GI10656@dastard> X-ASG-Orig-Subj: Re: [RFC 00/11] DAX fsynx/msync support References: <1446149535-16200-1-git-send-email-ross.zwisler@linux.intel.com> <20151030035533.GU19199@dastard> <20151030183938.GC24643@linux.intel.com> <20151101232948.GF10656@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446495044 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24046 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Nov 02, 2015 at 09:22:15AM -0500, Jeff Moyer wrote: > Dave Chinner writes: > > > Further, REQ_FLUSH/REQ_FUA are more than just "put the data on stable > > storage" commands. They are also IO barriers that affect scheduling > > of IOs in progress and in the request queues. A REQ_FLUSH/REQ_FUA > > IO cannot be dispatched before all prior IO has been dispatched and > > drained from the request queue, and IO submitted after a queued > > REQ_FLUSH/REQ_FUA cannot be scheduled ahead of the queued > > REQ_FLUSH/REQ_FUA operation. > > > > IOWs, REQ_FUA/REQ_FLUSH not only guarantee data is on stable > > storage, they also guarantee the order of IO dispatch and > > completion when concurrent IO is in progress. > > This hasn't been the case for several years, now. It used to work that > way, and that was deemed a big performance problem. Since file systems > already issued and waited for all I/O before sending down a barrier, we > decided to get rid of the I/O ordering pieces of barriers (and stop > calling them barriers). > > See commit 28e7d184521 (block: drop barrier ordering by queue draining). Yes, I realise that, even if I wasn't very clear about how I wrote it. ;) Correct me if I'm wrong: AFAIA, dispatch ordering (i.e. the "IO barrier") is still enforced by the scheduler via REQ_FUA|REQ_FLUSH -> ELEVATOR_INSERT_FLUSH -> REQ_SOFTBARRIER and subsequent IO scheduler calls to elv_dispatch_sort() that don't pass REQ_SOFTBARRIER in the queue. IOWs, if we queue a bunch of REQ_WRITE IOs followed by a REQ_WRITE|REQ_FLUSH IO, all of the prior REQ_WRITE IOs will be dispatched before the REQ_WRITE|REQ_FLUSH IO and hence be captured by the cache flush. Hence once the filesystem has waited on the REQ_WRITE|REQ_FLUSH IO to complete, we know that all the earlier REQ_WRITE IOs are on stable storage, too. Hence there's no need for the elevator to drain the queue to guarantee completion ordering - the dispatch ordering and flush/fua write semantics guarantee that when the flush/fua completes, all the IOs dispatch prior to that flush/fua write are also on stable storage... Cheers, Dave. -- Dave Chinner david@fromorbit.com From jmoyer@redhat.com Mon Nov 2 15:02:56 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DBADE29DF5 for ; Mon, 2 Nov 2015 15:02:56 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id CC0E0304053 for ; Mon, 2 Nov 2015 13:02:53 -0800 (PST) X-ASG-Debug-ID: 1446498172-04cbb0660c1da8d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id G2vloKt9rmjsrunv (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 02 Nov 2015 13:02:52 -0800 (PST) X-Barracuda-Envelope-From: jmoyer@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 99F618F4E5; Mon, 2 Nov 2015 21:02:51 +0000 (UTC) Received: from segfault.boston.devel.redhat.com (segfault.boston.devel.redhat.com [10.19.60.26]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA2L2mF6029960 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 2 Nov 2015 16:02:48 -0500 From: Jeff Moyer To: Dave Chinner Cc: Ross Zwisler , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@ml01.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , axboe@kernel.dk Subject: Re: [RFC 00/11] DAX fsynx/msync support References: <1446149535-16200-1-git-send-email-ross.zwisler@linux.intel.com> <20151030035533.GU19199@dastard> <20151030183938.GC24643@linux.intel.com> <20151101232948.GF10656@dastard> <20151102201029.GI10656@dastard> X-ASG-Orig-Subj: Re: [RFC 00/11] DAX fsynx/msync support X-PGP-KeyID: 1F78E1B4 X-PGP-CertKey: F6FE 280D 8293 F72C 65FD 5A58 1FF8 A7CA 1F78 E1B4 X-PCLoadLetter: What the f**k does that mean? Date: Mon, 02 Nov 2015 16:02:48 -0500 In-Reply-To: <20151102201029.GI10656@dastard> (Dave Chinner's message of "Tue, 3 Nov 2015 07:10:29 +1100") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446498172 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Dave Chinner writes: > On Mon, Nov 02, 2015 at 09:22:15AM -0500, Jeff Moyer wrote: >> Dave Chinner writes: >> >> > Further, REQ_FLUSH/REQ_FUA are more than just "put the data on stable >> > storage" commands. They are also IO barriers that affect scheduling >> > of IOs in progress and in the request queues. A REQ_FLUSH/REQ_FUA >> > IO cannot be dispatched before all prior IO has been dispatched and >> > drained from the request queue, and IO submitted after a queued >> > REQ_FLUSH/REQ_FUA cannot be scheduled ahead of the queued >> > REQ_FLUSH/REQ_FUA operation. >> > >> > IOWs, REQ_FUA/REQ_FLUSH not only guarantee data is on stable >> > storage, they also guarantee the order of IO dispatch and >> > completion when concurrent IO is in progress. >> >> This hasn't been the case for several years, now. It used to work that >> way, and that was deemed a big performance problem. Since file systems >> already issued and waited for all I/O before sending down a barrier, we >> decided to get rid of the I/O ordering pieces of barriers (and stop >> calling them barriers). >> >> See commit 28e7d184521 (block: drop barrier ordering by queue draining). > > Yes, I realise that, even if I wasn't very clear about how I wrote > it. ;) > > Correct me if I'm wrong: AFAIA, dispatch ordering (i.e. the "IO > barrier") is still enforced by the scheduler via REQ_FUA|REQ_FLUSH > -> ELEVATOR_INSERT_FLUSH -> REQ_SOFTBARRIER and subsequent IO > scheduler calls to elv_dispatch_sort() that don't pass > REQ_SOFTBARRIER in the queue. This part is right. > IOWs, if we queue a bunch of REQ_WRITE IOs followed by a > REQ_WRITE|REQ_FLUSH IO, all of the prior REQ_WRITE IOs will be > dispatched before the REQ_WRITE|REQ_FLUSH IO and hence be captured > by the cache flush. But this part is not. It is up to the I/O scheduler to decide when to dispatch requests. It can hold on to them for a variety of reasons. Flush requests, however, do not go through the I/O scheduler. At the very moment that the flush request is inserted, it goes directly to the dispatch queue (assuming no other flush is in progress). The prior requests may still be waiting in the I/O scheduler's internal lists. So, any newly dispatched I/Os will certainly not get past the REQ_FLUSH. However, the REQ_FLUSH is very likely to jump ahead of prior I/Os in the queue. > Hence once the filesystem has waited on the REQ_WRITE|REQ_FLUSH IO > to complete, we know that all the earlier REQ_WRITE IOs are on > stable storage, too. Hence there's no need for the elevator to drain > the queue to guarantee completion ordering - the dispatch ordering > and flush/fua write semantics guarantee that when the flush/fua > completes, all the IOs dispatch prior to that flush/fua write are > also on stable storage... Des xfs rely on this model for correctness? If so, I'd say we've got a problem. Cheers, Jeff From david@fromorbit.com Mon Nov 2 15:44:41 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 981F87F53 for ; Mon, 2 Nov 2015 15:44:41 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 79EE3304032 for ; Mon, 2 Nov 2015 13:44:41 -0800 (PST) X-ASG-Debug-ID: 1446500677-04cbb0660d1db9d0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id nvLzwHeDffMyY3GV for ; Mon, 02 Nov 2015 13:44:38 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BUBwC72DdW/+rW03ZegzuBQqpGAQEBAQEBBosuhSaGCYYTBAICgTtNAQEBAQEBgQuENQEBAQMBMgEjIwULCAMOBAYJJQ8FJQMNFBMeiAoHwgEBAQEHAQEBAR8ZhheFRYRHhHkFlkOKbIIxgXaaTGOCDgMdgWoqNIQ1gUkBAQE Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 03 Nov 2015 08:14:37 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZtMts-0003DC-92; Tue, 03 Nov 2015 08:44:24 +1100 Date: Tue, 3 Nov 2015 08:44:24 +1100 From: Dave Chinner To: Brian Foster Cc: ross.zwisler@linux.intel.com, jack@suse.cz, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org, dan.j.williams@intel.com, linux-nvdimm@lists.01.org Subject: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Message-ID: <20151102214424.GJ10656@dastard> X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX References: <1445225238-30413-1-git-send-email-david@fromorbit.com> <1445225238-30413-4-git-send-email-david@fromorbit.com> <20151029142950.GE11663@bfoster.bfoster> <20151029233756.GS19199@dastard> <20151030123657.GC54905@bfoster.bfoster> <20151102011433.GW19199@dastard> <20151102141509.GA29346@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20151102141509.GA29346@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446500677 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24047 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- [add people to the cc list] On Mon, Nov 02, 2015 at 09:15:10AM -0500, Brian Foster wrote: > On Mon, Nov 02, 2015 at 12:14:33PM +1100, Dave Chinner wrote: > > On Fri, Oct 30, 2015 at 08:36:57AM -0400, Brian Foster wrote: > > > Unless there is some > > > special mixed dio/mmap case I'm missing, doing so for DAX/DIO basically > > > causes a clear_pmem() over every page sized chunk of the target I/O > > > range for which we already have the data. > > > > I don't follow - this only zeros blocks when we do allocation of new > > blocks or overwrite unwritten extents, not on blocks which we > > already have written data extents allocated for... > > > > Why are we assuming that block zeroing is more efficient than unwritten > extents for DAX/dio? I haven't played with pmem enough to know for sure > one way or another (or if hw support is imminent), but I'd expect the > latter to be more efficient in general without any kind of hardware > support. > > Just as an example, here's an 8GB pwrite test, large buffer size, to XFS > on a ramdisk mounted with '-o dax:' > > - Before this series: > > # xfs_io -fc "truncate 0" -c "pwrite -b 10m 0 8g" /mnt/file > wrote 8589934592/8589934592 bytes at offset 0 > 8.000 GiB, 820 ops; 0:00:04.00 (1.909 GiB/sec and 195.6591 ops/sec) > > - After this series: > > # xfs_io -fc "truncate 0" -c "pwrite -b 10m 0 8g" /mnt/file > wrote 8589934592/8589934592 bytes at offset 0 > 8.000 GiB, 820 ops; 0:00:12.00 (659.790 MiB/sec and 66.0435 ops/sec) That looks wrong. Much, much slower than it should be just zeroing pages and then writing to them again while cache hot. Oh, hell - dax_clear_blocks() is stupidly slow. A profile shows this loop spending most of the CPU time: ¿ ¿ jbe ea ¿ de: clflus %ds:(%rax) 84.67 ¿ add %rsi,%rax ¿ cmp %rax,%rdx ¿ ¿ ja de ¿ ea: add %r13,-0x38(%rbp) ¿ sub %r12,%r14 ¿ sub %r12,-0x40(%rbp) That is the overhead of __arch_wb_cache_pmem() i.e. issuing CPU cache flushes after each memset. None of these pmem memory operations are optimised yet - the implementations are correct, but performance still needs work. The conversion to non-temporal stores should get rid of this cache flush overhead (somewhat), but I was still expecting this code to be much closer to memset speed and not reduce performance to bugger all... > The impact is less with a smaller buffer size so the above is just meant > to illustrate the point. FWIW, I'm also fine with getting this in as a > matter of "correctness before performance" since this stuff is clearly > still under development, but as far as I can see so far we should > probably ultimately prefer unwritten extents for DAX/DIO (or at least > plan to run some similar tests on real pmem hw). Thoughts? We're going to have these problems initially, but from the XFS persepective those problems don't matter because we have a different problem to solve. That is, we need to move towards an architecture that is highly efficient for low latency, high IOPS storage subsystems. The first step towards that is to be able to offload block zeroing to the hardware so we can avoid using unwritten extents. In the long run, we don't want to use unwritten extents on DAX if we can avoid it - the CPU overhead of unwritten extent conversion isn't constant (i.e. it grows with the size of the BMBT) and it isn't deterministic (e.g. split/merge take much more CPU than a simple record write to clear an unwritten flag). We don't notice this overhead much with normal IO because of the fact that the CPU time for conversion is much less than the CPU time for the IO to complete, hence it's a win. But for PMEM, directly zeroing a 4k chunk of data should take *much less CPU* than synchronously starting a transaction, reserving space, looking up the extent in the BMBT, loading the buffers from cache, modifying the buffers, logging the changes and committing the transaction (which in itself will typically copy more than a single page of metadata into the CIL buffers). Realistically, dax_clear_blocks() should probably be implemented at the pmem driver layer through blkdev_issue_zeroout() because all it does is directly map the sector/len to pfn via bdev_direct_access() and then zero it - it's a sector based, block device operation. We don't actually need a special case path for DAX here. Optimisation of this operation has little to do with the filesystem. This comes back to the comments I made w.r.t. the pmem driver implementation doing synchronous IO by immediately forcing CPU cache flushes and barriers. it's obviously correct, but it looks like there's going to be a major performance penalty associated with it. This is why I recently suggested that a pmem driver that doesn't do CPU cache writeback during IO but does it on REQ_FLUSH is an architecture we'll likely have to support. In this case, the block device won't need to flush CPU cache lines for the zeroed blocks until the allocation transaction is actually committed to the journal. In that case, there's a good chance that we'd end up also committing the new data as well, hence avoiding two synchronous memory writes. i.e. the "big hammer" REQ_FLUSH implementation may well be *much* faster than fine-grained synchronous "stable on completion" writes for persistent memory. This, however, is not really a problem for the filesystem - it's a pmem driver architecture problem. ;) Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Nov 2 20:13:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E164129DF5 for ; Mon, 2 Nov 2015 20:13:01 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id BDEC7304053 for ; Mon, 2 Nov 2015 18:12:58 -0800 (PST) X-ASG-Debug-ID: 1446516773-04bdf0330b1e78f0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id dB9OA88YkPPeAb79 for ; Mon, 02 Nov 2015 18:12:54 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DSBwAOFzhW/+rW03ZegzuBQqpNAQEBBosuhSWGCYUJgQoCAgEBAoE2TQEBAQEBAYELhDYBAQQ6HCMQCAMOCgklDwUlAyETiC/BfAEBAQcCASAZhheFRYgsgRQFlkONHZxDY4IRHYFqKjSFfgEBAQ Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 03 Nov 2015 12:42:44 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZtR5M-0003hz-30; Tue, 03 Nov 2015 13:12:32 +1100 Date: Tue, 3 Nov 2015 13:12:32 +1100 From: Dave Chinner To: Andreas Gruenbacher Cc: Brian Foster , xfs@oss.sgi.com Subject: Re: [PATCH 2/2] xfs: invalidate cached acl if set via ioctl Message-ID: <20151103021231.GA19199@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: invalidate cached acl if set via ioctl References: <1446217508-22157-1-git-send-email-agruenba@redhat.com> <20151102025352.GY19199@dastard> <1446493974-24669-3-git-send-email-agruenba@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1446493974-24669-3-git-send-email-agruenba@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446516773 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24057 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Nov 02, 2015 at 08:52:54PM +0100, Andreas Gruenbacher wrote: > Setting or removing the "SGI_ACL_[FILE|DEFAULT]" attributes via the > XFS_IOC_ATTRMULTI_BY_HANDLE ioctl completely bypasses the POSIX ACL > infrastructure, like setting the "trusted.SGI_ACL_[FILE|DEFAULT]" xattrs > did until commit 6caa1056. Similar to that commit, invalidate cached > acls when setting/removing them via the ioctl as well. > > Signed-off-by: Andreas Gruenbacher Thanks, Andreas. I've pulled the fixes in. I updated the original patch with the fix in patch 1, and applied this patch. I'll push out a rebased for-next branch after some further testing... Cheers, Dave. -- Dave Chinner david@fromorbit.com From dan.j.williams@intel.com Mon Nov 2 21:53:38 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B094229DF5 for ; Mon, 2 Nov 2015 21:53:38 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3B0F6AC001 for ; Mon, 2 Nov 2015 19:53:35 -0800 (PST) X-ASG-Debug-ID: 1446522808-04bdf0330b1e9d90001-NocioJ Received: from mail-wm0-f49.google.com (mail-wm0-f49.google.com [74.125.82.49]) by cuda.sgi.com with ESMTP id Iq46gEPipF8Qvovw (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 02 Nov 2015 19:53:29 -0800 (PST) X-Barracuda-Envelope-From: dan.j.williams@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.49 Received: by wmeg8 with SMTP id g8so4747738wme.1 for ; 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Mon, 02 Nov 2015 19:53:27 -0800 (PST) Received: by 10.27.88.132 with HTTP; Mon, 2 Nov 2015 19:53:27 -0800 (PST) In-Reply-To: <20151102214424.GJ10656@dastard> References: <1445225238-30413-1-git-send-email-david@fromorbit.com> <1445225238-30413-4-git-send-email-david@fromorbit.com> <20151029142950.GE11663@bfoster.bfoster> <20151029233756.GS19199@dastard> <20151030123657.GC54905@bfoster.bfoster> <20151102011433.GW19199@dastard> <20151102141509.GA29346@bfoster.bfoster> <20151102214424.GJ10656@dastard> Date: Mon, 2 Nov 2015 19:53:27 -0800 Message-ID: Subject: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX From: Dan Williams X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX To: Dave Chinner Cc: Brian Foster , Ross Zwisler , Jan Kara , xfs@oss.sgi.com, linux-fsdevel , "linux-nvdimm@lists.01.org" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail-wm0-f49.google.com[74.125.82.49] X-Barracuda-Start-Time: 1446522809 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24059 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Mon, Nov 2, 2015 at 1:44 PM, Dave Chinner wrote: > [add people to the cc list] > > On Mon, Nov 02, 2015 at 09:15:10AM -0500, Brian Foster wrote: >> On Mon, Nov 02, 2015 at 12:14:33PM +1100, Dave Chinner wrote: >> > On Fri, Oct 30, 2015 at 08:36:57AM -0400, Brian Foster wrote: >> > > Unless there is some >> > > special mixed dio/mmap case I'm missing, doing so for DAX/DIO basica= lly >> > > causes a clear_pmem() over every page sized chunk of the target I/O >> > > range for which we already have the data. >> > >> > I don't follow - this only zeros blocks when we do allocation of new >> > blocks or overwrite unwritten extents, not on blocks which we >> > already have written data extents allocated for... >> > >> >> Why are we assuming that block zeroing is more efficient than unwritten >> extents for DAX/dio? I haven't played with pmem enough to know for sure >> one way or another (or if hw support is imminent), but I'd expect the >> latter to be more efficient in general without any kind of hardware >> support. >> >> Just as an example, here's an 8GB pwrite test, large buffer size, to XFS >> on a ramdisk mounted with '-o dax:' >> >> - Before this series: >> >> # xfs_io -fc "truncate 0" -c "pwrite -b 10m 0 8g" /mnt/file >> wrote 8589934592/8589934592 bytes at offset 0 >> 8.000 GiB, 820 ops; 0:00:04.00 (1.909 GiB/sec and 195.6591 ops/sec) >> >> - After this series: >> >> # xfs_io -fc "truncate 0" -c "pwrite -b 10m 0 8g" /mnt/file >> wrote 8589934592/8589934592 bytes at offset 0 >> 8.000 GiB, 820 ops; 0:00:12.00 (659.790 MiB/sec and 66.0435 ops/sec) > > That looks wrong. Much, much slower than it should be just zeroing > pages and then writing to them again while cache hot. > > Oh, hell - dax_clear_blocks() is stupidly slow. A profile shows this > loop spending most of the CPU time: > > =C2=BF =C2=BF jbe ea > =C2=BF de: clflus %ds:(%rax) > 84.67 =C2=BF add %rsi,%rax > =C2=BF cmp %rax,%rdx > =C2=BF =C2=BF ja de > =C2=BF ea: add %r13,-0x38(%rbp) > =C2=BF sub %r12,%r14 > =C2=BF sub %r12,-0x40(%rbp) > > That is the overhead of __arch_wb_cache_pmem() i.e. issuing CPU > cache flushes after each memset. Ideally this would be non-temporal and skip the second flush loop altogether. Outside of that another problem is that this cpu does not support the clwb instruction and is instead using the serializing and invalidating clflush instruction. > None of these pmem memory operations are optimised yet - the > implementations are correct, but performance still needs work. The > conversion to non-temporal stores should get rid of this cache flush > overhead (somewhat), but I was still expecting this code to be much > closer to memset speed and not reduce performance to bugger all... > >> The impact is less with a smaller buffer size so the above is just meant >> to illustrate the point. FWIW, I'm also fine with getting this in as a >> matter of "correctness before performance" since this stuff is clearly >> still under development, but as far as I can see so far we should >> probably ultimately prefer unwritten extents for DAX/DIO (or at least >> plan to run some similar tests on real pmem hw). Thoughts? > > We're going to have these problems initially, but from the XFS > persepective those problems don't matter because we have a different > problem to solve. That is, we need to move towards an architecture > that is highly efficient for low latency, high IOPS storage > subsystems. The first step towards that is to be able to offload > block zeroing to the hardware so we can avoid using unwritten > extents. > > In the long run, we don't want to use unwritten extents on DAX if we > can avoid it - the CPU overhead of unwritten extent conversion isn't > constant (i.e. it grows with the size of the BMBT) and it isn't > deterministic (e.g. split/merge take much more CPU than a simple > record write to clear an unwritten flag). We don't notice this > overhead much with normal IO because of the fact that the CPU time > for conversion is much less than the CPU time for the IO to > complete, hence it's a win. > > But for PMEM, directly zeroing a 4k chunk of data should take *much > less CPU* than synchronously starting a transaction, reserving > space, looking up the extent in the BMBT, loading the buffers from > cache, modifying the buffers, logging the changes and committing the > transaction (which in itself will typically copy more than a single > page of metadata into the CIL buffers). > > Realistically, dax_clear_blocks() should probably be implemented at > the pmem driver layer through blkdev_issue_zeroout() because all it > does is directly map the sector/len to pfn via bdev_direct_access() > and then zero it - it's a sector based, block device operation. We > don't actually need a special case path for DAX here. Optimisation > of this operation has little to do with the filesystem. > > This comes back to the comments I made w.r.t. the pmem driver > implementation doing synchronous IO by immediately forcing CPU cache > flushes and barriers. it's obviously correct, but it looks like > there's going to be a major performance penalty associated with it. > This is why I recently suggested that a pmem driver that doesn't do > CPU cache writeback during IO but does it on REQ_FLUSH is an > architecture we'll likely have to support. > The only thing we can realistically delay is wmb_pmem() i.e. the final sync waiting for data that has *left* the cpu cache. Unless/until we get a architecturally guaranteed method to write-back the entire cache, or flush the cache by physical-cache-way we're stuck with either non-temporal cycles or looping on potentially huge virtual address ranges. > In this case, the block device won't need to flush CPU cache lines > for the zeroed blocks until the allocation transaction is actually > committed to the journal. In that case, there's a good chance that > we'd end up also committing the new data as well, hence avoiding two > synchronous memory writes. i.e. the "big hammer" REQ_FLUSH > implementation may well be *much* faster than fine-grained > synchronous "stable on completion" writes for persistent memory. I can only see it being faster in the case where the flush is cheap to initiate. That's not the case yet so we're stuck doing it synchronously. > > This, however, is not really a problem for the filesystem - it's > a pmem driver architecture problem. ;) > It's a platform problem. Let's see how this looks when not using clflush instructions. Also, another benefit of pushing zeroing down into the driver is that for brd, as used in this example, it will rightly be a nop because there's no persistence to guarantee there. From david@fromorbit.com Mon Nov 2 23:04:34 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1AD2D29DF5 for ; Mon, 2 Nov 2015 23:04:34 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id DED638F8033 for ; Mon, 2 Nov 2015 21:04:30 -0800 (PST) X-ASG-Debug-ID: 1446527067-04bdf033091eb780001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id r7LhScPDI7shFBqL for ; Mon, 02 Nov 2015 21:04:27 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CVBwAaPzhW/+rW03ZegzuBQqpMAQEBAQEBBosuhSWGCYYTAgIBAQKBOE0BAQEBAQGBC4Q1AQEBAwEyASMjBQsIAxIGCSUPBSUDDRQTiCgHwUsBAQEBBgEBAQEBAR0ZhheFRYgsgRQFlkONHZxDY4IOIIFqKjSFfgEBAQ Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 03 Nov 2015 15:34:26 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZtTlV-0003xB-Pc; Tue, 03 Nov 2015 16:04:13 +1100 Date: Tue, 3 Nov 2015 16:04:13 +1100 From: Dave Chinner To: Dan Williams Cc: Brian Foster , Ross Zwisler , Jan Kara , xfs@oss.sgi.com, linux-fsdevel , "linux-nvdimm@lists.01.org" Subject: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Message-ID: <20151103050413.GB19199@dastard> X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX References: <1445225238-30413-1-git-send-email-david@fromorbit.com> <1445225238-30413-4-git-send-email-david@fromorbit.com> <20151029142950.GE11663@bfoster.bfoster> <20151029233756.GS19199@dastard> <20151030123657.GC54905@bfoster.bfoster> <20151102011433.GW19199@dastard> <20151102141509.GA29346@bfoster.bfoster> <20151102214424.GJ10656@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446527067 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24060 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Nov 02, 2015 at 07:53:27PM -0800, Dan Williams wrote: > On Mon, Nov 2, 2015 at 1:44 PM, Dave Chinner wrote: > > [add people to the cc list] > > > > On Mon, Nov 02, 2015 at 09:15:10AM -0500, Brian Foster wrote: > >> On Mon, Nov 02, 2015 at 12:14:33PM +1100, Dave Chinner wrote: > >> > On Fri, Oct 30, 2015 at 08:36:57AM -0400, Brian Foster wrote: > >> > > Unless there is some > >> > > special mixed dio/mmap case I'm missing, doing so for DAX/DIO basically > >> > > causes a clear_pmem() over every page sized chunk of the target I/O > >> > > range for which we already have the data. > >> > > >> > I don't follow - this only zeros blocks when we do allocation of new > >> > blocks or overwrite unwritten extents, not on blocks which we > >> > already have written data extents allocated for... > >> > > >> > >> Why are we assuming that block zeroing is more efficient than unwritten > >> extents for DAX/dio? I haven't played with pmem enough to know for sure > >> one way or another (or if hw support is imminent), but I'd expect the > >> latter to be more efficient in general without any kind of hardware > >> support. > >> > >> Just as an example, here's an 8GB pwrite test, large buffer size, to XFS > >> on a ramdisk mounted with '-o dax:' > >> > >> - Before this series: > >> > >> # xfs_io -fc "truncate 0" -c "pwrite -b 10m 0 8g" /mnt/file > >> wrote 8589934592/8589934592 bytes at offset 0 > >> 8.000 GiB, 820 ops; 0:00:04.00 (1.909 GiB/sec and 195.6591 ops/sec) > >> > >> - After this series: > >> > >> # xfs_io -fc "truncate 0" -c "pwrite -b 10m 0 8g" /mnt/file > >> wrote 8589934592/8589934592 bytes at offset 0 > >> 8.000 GiB, 820 ops; 0:00:12.00 (659.790 MiB/sec and 66.0435 ops/sec) > > > > That looks wrong. Much, much slower than it should be just zeroing > > pages and then writing to them again while cache hot. > > > > Oh, hell - dax_clear_blocks() is stupidly slow. A profile shows this > > loop spending most of the CPU time: > > > > ¿ ¿ jbe ea > > ¿ de: clflus %ds:(%rax) > > 84.67 ¿ add %rsi,%rax > > ¿ cmp %rax,%rdx > > ¿ ¿ ja de > > ¿ ea: add %r13,-0x38(%rbp) > > ¿ sub %r12,%r14 > > ¿ sub %r12,-0x40(%rbp) > > > > That is the overhead of __arch_wb_cache_pmem() i.e. issuing CPU > > cache flushes after each memset. > > Ideally this would be non-temporal and skip the second flush loop > altogether. Outside of that another problem is that this cpu does not > support the clwb instruction and is instead using the serializing and > invalidating clflush instruction. Sure, it can be optimised to improve behaviour, and other hardware will be more performant, but we'll still be doing synchronous cache flushing operations here and so the fundamental problem still exists. > > This comes back to the comments I made w.r.t. the pmem driver > > implementation doing synchronous IO by immediately forcing CPU cache > > flushes and barriers. it's obviously correct, but it looks like > > there's going to be a major performance penalty associated with it. > > This is why I recently suggested that a pmem driver that doesn't do > > CPU cache writeback during IO but does it on REQ_FLUSH is an > > architecture we'll likely have to support. > > > > The only thing we can realistically delay is wmb_pmem() i.e. the final > sync waiting for data that has *left* the cpu cache. Unless/until we > get a architecturally guaranteed method to write-back the entire > cache, or flush the cache by physical-cache-way we're stuck with > either non-temporal cycles or looping on potentially huge virtual > address ranges. I'm missing something: why won't flushing the address range returned by bdev_direct_access() during a fsync operation work? i.e. we're working with exactly the same address as dax_clear_blocks() and dax_do_io() use, so why can't we look up that address and flush it from fsync? > > This, however, is not really a problem for the filesystem - it's > > a pmem driver architecture problem. ;) > > > > It's a platform problem. Let's see how this looks when not using > clflush instructions. Yes, clflush vs clwb is that's a platform problem. However, the architectural problem I've refered to is that is we've designed the DAX infrastructure around a CPU implementation that requires synchronous memory flushes for persistence, and so driven that synchronous flush requirement into the DAX implementation itself.... > Also, another benefit of pushing zeroing down into the driver is that > for brd, as used in this example, it will rightly be a nop because > there's no persistence to guarantee there. Precisely my point - different drivers and hardware have different semantics and optimisations, and only by separating the data copying from the persistence model do we end up with infrastructure that is flexible enough to work with different hardware/driver pmem models... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Nov 2 23:07:11 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6D1E529E04 for ; Mon, 2 Nov 2015 23:07:11 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5B87E304039 for ; Mon, 2 Nov 2015 21:07:08 -0800 (PST) X-ASG-Debug-ID: 1446527225-04cb6c7b851d0230001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 3j3kukXIZKvMG8aV for ; Mon, 02 Nov 2015 21:07:06 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BWCABPQDhW/+rW03ZegzsjMG+qNAIBFQEBAQEBAQaBDYohhSWGCRcChXoEgTxNAQEBAQEBgQuEYy87JDQFJQM0iC+gV6EZCRmGF4pvghcMQh2BFAWHRY5+hR2IAIFhh2OFJoUGiFNjgVY7HYFqKjSENiWBIwEBAQ Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 03 Nov 2015 15:37:04 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZtTo4-0003xT-AS for xfs@oss.sgi.com; Tue, 03 Nov 2015 16:06:52 +1100 Date: Tue, 3 Nov 2015 16:06:52 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [ANNOUNCE] xfs: for-next branch rebased and updated to 264e89a Message-ID: <20151103050652.GC19199@dastard> X-ASG-Orig-Subj: [ANNOUNCE] xfs: for-next branch rebased and updated to 264e89a MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="UFHRwCdBEJvubb2X" Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446527225 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24060 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- --UFHRwCdBEJvubb2X Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi folks, The for-next branch of the xfs kernel repository at git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git has just been updated. I rebased the xfs-misc-fixes-for-4.4-2 branch to fix the ACL build issue and added Andreas' and Darrick's bug fixes, and so the for-next branch has rebased as well. This update also includes all the DAX fixes queued up for 4.4. -Dave. The new head of the for-next branch is commit: 264e89a Merge branch 'xfs-dax-updates' into for-next New Commits: Andreas Gruenbacher (3): [86a21c7] xfs: Validate the length of on-disk ACLs [09cb22d] xfs: Plug memory leak in xfs_attrmulti_attr_set [47e1bf6] xfs: invalidate cached acl if set via ioctl Brian Foster (1): [67d8e04] xfs: invalidate cached acl if set directly via xattr Darrick J. Wong (1): [af3b638] xfs: don't leak uuid table on rmmod Dave Chinner (9): [3e12dbb] xfs: fix inode size update overflow in xfs_map_direct() [3fbbbea] xfs: introduce BMAPI_ZERO for allocating zeroed extents [1ca1915] xfs: Don't use unwritten extents for DAX [01a155e] xfs: DAX does not use IO completion callbacks [3af4928] xfs: add ->pfn_mkwrite support for DAX [13ad4fe] xfs: xfs_filemap_pmd_fault treats read faults as write faul= ts [fc0561c] xfs: optimise away log forces on timestamp updates for fdat= async [2da5c4b] Merge branch 'xfs-misc-fixes-for-4.4-2' into for-next [264e89a] Merge branch 'xfs-dax-updates' into for-next Jiri Kosina (1): [24ba16b] xfs: clear PF_NOFREEZE for xfsaild kthread Code Diffstat: fs/dax.c | 5 +++ fs/xfs/libxfs/xfs_alloc.c | 10 ++++- fs/xfs/libxfs/xfs_alloc.h | 8 ++-- fs/xfs/libxfs/xfs_bmap.c | 35 ++++++++++++++++- fs/xfs/libxfs/xfs_bmap.h | 13 ++++++- fs/xfs/libxfs/xfs_format.h | 8 +++- fs/xfs/xfs_acl.c | 13 ++++--- fs/xfs/xfs_acl.h | 3 ++ fs/xfs/xfs_aops.c | 96 ++++++++++++++++++++++++------------------= ---- fs/xfs/xfs_aops.h | 3 +- fs/xfs/xfs_bmap_util.c | 36 +++++++++++++++++ fs/xfs/xfs_file.c | 85 +++++++++++++++++++++++++++++++++------- fs/xfs/xfs_inode.c | 2 + fs/xfs/xfs_inode_item.c | 1 + fs/xfs/xfs_inode_item.h | 1 + fs/xfs/xfs_ioctl.c | 15 +++++++- fs/xfs/xfs_iomap.c | 21 +++++++++- fs/xfs/xfs_mount.c | 10 +++++ fs/xfs/xfs_mount.h | 4 ++ fs/xfs/xfs_super.c | 1 + fs/xfs/xfs_trace.h | 1 + fs/xfs/xfs_trans_ail.c | 1 + fs/xfs/xfs_trans_inode.c | 9 +++++ fs/xfs/xfs_xattr.c | 31 ++++++++++++++- 24 files changed, 331 insertions(+), 81 deletions(-) --=20 Dave Chinner david@fromorbit.com --UFHRwCdBEJvubb2X Content-Type: application/pgp-signature; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable =20 =D0=A3=D1=87=D0=B5=D0=B1=D0=BD=D1=8B=D0=B9 = =D1=86=D0=B5=D0=BD=D1=82=D1=80 = =D0=BF=D1=80=D0=B8=D0=B3=D0=BB=D0=B0=D1=88=D0=B0=D0=B5=D1=82 = =D0=BD=D0=B0 =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D0=BE =D1=82=D0=B5=D0=BC=D0=B5: =20 =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D0=B5=D1=80=D1=81=D0=BE=D0=BD=D0=B0=D0=BB=D0=B0. =D0=91=D0=B5=D0=B7=D0=BE=D0=BF=D0=B0=D1=81=D0=BD=D0=BE =D0=B8 = =D0=B1=D0=B5=D1=81=D0=BA=D0=BE=D0=BD=D1=84=D0=BB=D0=B8=D0=BA=D1=82=D0=BD=D0= =BE. =D0=A6=D0=B5=D0=BB=D0=B5=D0=B2=D0=B0=D1=8F = =D0=B0=D1=83=D0=B4=D0=B8=D1=82=D0=BE=D1=80=D0=B8=D1=8F: = =D0=A0=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B8 = =D0=B8 =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA=D0=B8 = =D0=BA=D0=B0=D0=B4=D1=80=D0=BE=D0=B2=D1=8B=D1=85 = =D1=81=D0=BB=D1=83=D0=B6=D0=B1, = =D0=B4=D0=B8=D1=80=D0=B5=D0=BA=D1=82=D0=BE=D1=80=D0=B0 =D0=B8 =D0=BC=D0=B5=D0=BD=D0=B5=D0=B4=D0=B6=D0=B5=D1=80=D1=8B = =D0=BF=D0=BE =D0=BF=D0=B5=D1=80=D1=81=D0=BE=D0=BD=D0=B0=D0=BB=D1=83, = =D0=B1=D1=83=D1=85=D0=B3=D0=B0=D0=BB=D1=82=D0=B5=D1=80=D1=8B, = =D1=8E=D1=80=D0=B8=D1=81=D1=82=D1=8B, = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B8 = =D0=BA=D0=BE=D0=BC=D0=BF=D0=B0=D0=BD=D0=B8=D0=B9. =20 =20 18 =D0=BD=D0=BE=D1=8F=D0=B1=D1=80=D1=8F 2015 = =D0=B3=D0=BE=D0=B4=D0=B0, =D0=B3=D0=BE=D1=80=D0=BE=D0=B4 = =D0=9C=D0=BE=D1=81=D0=BA=D0=B2=D0=B0 | = (=D0=B0=D1=80=D1=82=D0=B8=D0=BA=D1=83=D0=BB: 250) =D0=97=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D0=B5 = =D0=BF=D1=80=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D1=81=D1=8F c 10:00 = =D0=B4=D0=BE 17:30 =D0=90=D0=B4=D1=80=D0=B5=D1=81 = =D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F: = =D1=83=D0=BB. = =D0=91=D0=B0=D1=83=D0=BC=D0=B0=D0=BD=D1=81=D0=BA=D0=B0=D1=8F, =D0=B4.6, = =D1=81=D1=82=D1=80.2, =D0=91.=D0=A6. = "=D0=92=D0=B8=D0=BA=D1=82=D0=BE=D1=80=D0=B8=D1=8F = =D0=9F=D0=BB=D0=B0=D0=B7=D0=B0". =D0=A3=D0=B7=D0=BD=D0=B0=D1=82=D1=8C =D0=92=D1=81=D1=8E = =D0=BF=D0=BE=D0=B4=D1=80=D0=BE=D0=B1=D0=BD=D1=83=D1=8E = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D1=8E =D0=B8 = =D0=BF=D0=BE=D0=B4=D0=B0=D1=82=D1=8C = =D0=B7=D0=B0=D1=8F=D0=B2=D0=BA=D1=83 =D0=BD=D0=B0 = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 =D0=92=D1=8B = =D0=BC=D0=BE=D0=B6=D0=B5=D1=82=D0=B5 =D0=BF=D0=BE = =D1=82=D0=B5=D0=BB=D0=B5=D1=84=D0=BE=D0=BD=D1=83 :=20 8 =D0=BA=D0=BE=D0=B4 =D0=B3=D0=BE=D1=80=D0=BE=D0=B4=D0=B0 ( 4 9 = 5 ) =D0=BD=D0=BE=D0=BC=D0=B5=D1=80 7 2 5 - 0 4 - 4 8. =D0=92=D1=8B =D0=BC=D0=BE=D0=B6=D0=B5=D1=82=D0=B5 = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=B2=D0=BE=D0=B2=D0=B0=D1=82=D1=8C = =D0=B2 =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=BA=D0=B0=D0=BA =D0=BE=D1=82 = =D0=BA=D0=BE=D0=BC=D0=BF=D0=B0=D0=BD=D0=B8=D0=B8, =D1=82=D0=B0=D0=BA = =D0=B8 =D0=BA=D0=B0=D0=BA =D1=87=D0=B0=D1=81=D1=82=D0=BD=D0=BE=D0=B5 = =D0=BB=D0=B8=D1=86=D0=BE. (=D0=BF=D0=BE=D0=B6=D0=B0=D0=BB=D1=83=D0=B9=D1=81=D1=82=D0=B0 = =D0=BD=D0=B5 =D0=BE=D1=82=D0=B2=D0=B5=D1=87=D0=B0=D0=B9=D1=82=D0=B5 = =D0=BD=D0=B0 =D0=BE=D0=B1=D1=80=D0=B0=D1=82=D0=BD=D1=8B=D0=B9 = =D0=B0=D0=B4=D1=80=D0=B5=D1=81 = =D1=8D=D0=BB.=D0=BF=D0=BE=D1=87=D1=82=D1=8B) =20 =20 = =D0=91=D0=BE=D0=BB=D1=8C=D1=88=D0=B8=D0=BD=D1=81=D1=82=D0=B2=D0=BE = =D1=81=D0=BF=D0=BE=D1=80=D0=BE=D0=B2, = =D0=B2=D0=BE=D0=B7=D0=BD=D0=B8=D0=BA=D0=B0=D1=8E=D1=89=D0=B8=D1=85 = =D0=B8=D0=B7 =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=8B=D1=85 = =D0=BE=D1=82=D0=BD=D0=BE=D1=88=D0=B5=D0=BD=D0=B8=D0=B9, = =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BE =D1=81 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2, =D0=B0 =D1=82=D0=B0=D0=BA=D0=B6=D0=B5 =D1=81 = =D0=BD=D0=B5=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BD=D1=8B=D0=BC = =D0=BF=D1=80=D0=B8=D0=B2=D0=BB=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=B8=D0=BD=D0=BE=D1=81=D1=82=D1=80=D0=B0=D0=BD=D0=BD=D1=8B=D1=85 = =D0=B3=D1=80=D0=B0=D0=B6=D0=B4=D0=B0=D0=BD =D0=BA = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B5. = =D0=9D=D0=B5=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BD=D0=BE=D0=B5 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5, =D0=BF=D0=BE=D0=BC=D0=B8=D0=BC=D0=BE = =D0=BD=D0=B5=D0=BE=D0=B1=D1=85=D0=BE=D0=B4=D0=B8=D0=BC=D0=BE=D1=81=D1=82=D0= =B8 = =D0=B2=D0=BE=D1=81=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0= =B8=D1=8F =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=B0 = =D0=BD=D0=B0 =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B5, = =D0=B2=D0=BB=D0=B5=D1=87=D0=B5=D1=82 = =D0=BD=D0=B5=D0=B1=D0=BB=D0=B0=D0=B3=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0= =BD=D1=8B=D0=B5 = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B5 = =D0=B8 = =D1=80=D0=B5=D0=BF=D1=83=D1=82=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D1=8B=D0= =B5 =D0=BF=D0=BE=D1=81=D0=BB=D0=B5=D0=B4=D1=81=D1=82=D0=B2=D0=B8=D1=8F = =D0=B4=D0=BB=D1=8F = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8F.= =D0=94=D0=BB=D1=8F =D1=82=D0=BE=D0=B3=D0=BE = =D1=87=D1=82=D0=BE=D0=B1=D1=8B = =D0=B3=D1=80=D0=B0=D0=BC=D0=BE=D1=82=D0=BD=D0=BE =D1=80=D0=B0=D1=81=D1=81=D1=82=D0=B0=D1=82=D1=8C=D1=81=D1=8F = =D1=81 =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=BC, = =D0=BD=D0=B5=D0=B4=D0=BE=D1=81=D1=82=D0=B0=D1=82=D0=BE=D1=87=D0=BD=D0=BE = =D0=BD=D0=B0=D0=B9=D1=82=D0=B8 =D0=BF=D0=BE=D0=B2=D0=BE=D0=B4 = =D0=B4=D0=BB=D1=8F = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F, = =D0=BD=D0=B5=D0=BE=D0=B1=D1=85=D0=BE=D0=B4=D0=B8=D0=BC=D0=BE = =D1=87=D0=B5=D1=82=D0=BA=D0=BE=D0=B5 =D1=81=D0=BE=D0=B1=D0=BB=D1=8E=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=BD=D1=8B=D1= =85 =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=BC =D0=BD=D0=BE=D1=80=D0=BC, = =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=B4=D1=83=D1=80, = =D1=81=D0=BE=D0=BF=D1=80=D0=BE=D0=B2=D0=BE=D0=B6=D0=B4=D0=B0=D0=B5=D0=BC=D1= =8B=D1=85 =D0=BA=D0=B0=D0=B4=D1=80=D0=BE=D0=B2=D0=BE=D0=B9 = =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D0=B0=D1=86=D0=B8=D0=B5=D0= =B9. =D0=A1=D0=BE=D0=B1=D0=BB=D1=8E=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=BD=D1=8B=D1= =85 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=BE=D0=BC =D0=BD=D0=BE=D1=80=D0=BC =D0=B8 = =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=B4=D1=83=D1=80 = =D0=BF=D1=80=D0=B5=D0=BA=D1=80=D0=B0=D1=89=D0=B5=D0=BD=D0=B8=D1=8F = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0 = =D0=BC=D0=B8=D0=BD=D0=B8=D0=BC=D0=B8=D0=B7=D0=B8=D1=80=D1=83=D0=B5=D1=82 = =D0=B2 =D0=B4=D0=B0=D0=BB=D1=8C=D0=BD=D0=B5=D0=B9=D1=88=D0=B5=D0=BC = =D1=80=D0=B8=D1=81=D0=BA=D0=B8, = =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5 =D1=81 = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=8B=D0=BC = =D1=81=D0=BF=D0=BE=D1=80=D0=BE=D0=BC. =20 =20 =D0=9E=D0=BF=D0=B8=D1=81=D0=B0=D0=BD=D0=B8=D0=B5 = =D0=BF=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D1=8B: =20 =20 1. =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D1=8F=D0=B5=D0=BC = =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA=D0=B0 = =D0=B1=D0=B5=D0=B7 =D0=BF=D1=80=D0=BE=D0=B1=D0=BB=D0=B5=D0=BC. * = =D0=A4=D0=BE=D1=80=D0=BC=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5 = =D0=BF=D1=81=D0=B8=D1=85=D0=BE=D0=BB=D0=BE=D0=B3=D0=B8=D1=87=D0=B5=D1=81=D0= =BA=D0=BE=D0=B3=D0=BE =D0=BF=D0=BE=D1=80=D1=82=D1=80=D0=B5=D1=82=D0=B0 = =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA=D0=B0 * =D0=9C=D0=B5=D1=82=D0=BE=D0=B4=D1=8B =D0=B8 = =D0=BF=D1=80=D0=B8=D0=B5=D0=BC=D1=8B = =D0=BF=D1=81=D0=B8=D1=85=D0=BE=D0=BB=D0=BE=D0=B3=D0=B8=D0=B8, = =D1=81=D0=BF=D0=BE=D1=81=D0=BE=D0=B1=D1=81=D1=82=D0=B2=D1=83=D1=8E=D1=89=D0= =B8=D0=B5 =D1=83=D0=B1=D0=B5=D0=B4=D0=B8=D1=82=D1=8C = =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA=D0=B0 = =D1=83=D0=B2=D0=BE=D0=BB=D0=B8=D1=82=D1=8C=D1=81=D1=8F * =D0=9A=D0=BE=D0=BD=D1=84=D0=BB=D0=B8=D0=BA=D1=82=D1=8B = =D0=BF=D1=80=D0=B8 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B8 =D0=B8 = =D0=B1=D0=BE=D1=80=D1=8C=D0=B1=D0=B0 = =D0=BA=D0=BE=D0=BC=D0=BF=D1=80=D0=BE=D0=BC=D0=B0=D1=82=D0=BE=D0=B2 * =D0=A7=D1=82=D0=BE =D1=81=D0=B4=D0=B5=D0=BB=D0=B0=D1=82=D1=8C, = =D1=87=D1=82=D0=BE=D0=B1=D1=8B = =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA =D0=BD=D0=B5 = =D1=81=D0=BC=D0=BE=D0=B3 = =D0=BF=D0=B5=D1=80=D0=B5=D0=B4=D1=83=D0=BC=D0=B0=D1=82=D1=8C * =D0=98=D0=BC=D0=B8=D0=B4=D0=B6=D0=B5=D0=B2=D1=8B=D0=B5 = =D0=B0=D1=81=D0=BF=D0=B5=D0=BA=D1=82=D1=8B = =D0=B2=D0=BE=D0=B7=D0=B4=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0=B8=D1=8F = =D0=BD=D0=B0 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D1=8F=D1=8E=D1=89=D0=B5=D0=B3=D0=BE=D1= =81=D1=8F =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA=D0=B0 * = =D0=97=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D0= =BD=D1=8B=D0=B5 =D0=BC=D0=B5=D1=80=D1=8B = =D0=B1=D0=BE=D1=80=D1=8C=D0=B1=D1=8B =D1=81 = =C2=AB=D0=BA=D0=B0=D0=B4=D1=80=D0=BE=D0=B2=D1=8B=D0=BC = =D1=8D=D0=BA=D1=81=D1=82=D1=80=D0=B5=D0=BC=D0=B8=D0=B7=D0=BC=D0=BE=D0=BC=C2= =BB - = =D0=BD=D0=B5=D0=BE=D0=B1=D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=B0=D0=BD=D0=BD=D1= =8B=D0=BC=D0=B8 =D0=B6=D0=B0=D0=BB=D0=BE=D0=B1=D0=B0=D0=BC=D0=B8 =D0=B2 =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=83=D1=8E = =D0=B8=D0=BD=D1=81=D0=BF=D0=B5=D0=BA=D1=86=D0=B8=D1=8E, = =D1=81=D1=83=D0=B4=D0=B5=D0=B1=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=B8=D1=81=D0=BA=D0=B0=D0=BC=D0=B8 2. =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D0=BE = =D1=81=D0=BE=D0=B1=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D0=BC=D1=83 = =D0=B6=D0=B5=D0=BB=D0=B0=D0=BD=D0=B8=D1=8E. * =D0=A7=D1=82=D0=BE =D0=BD=D1=83=D0=B6=D0=BD=D0=BE = =D0=B7=D0=BD=D0=B0=D1=82=D1=8C =D0=BE = =D0=B7=D0=B0=D1=8F=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B8, =D0=BE=D0=B1 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=BF=D1=80=D0=B5=D0=B4=D1=83=D0=BF=D1=80=D0=B5=D0=B6=D0=B4=D0=B5=D0=BD=D0= =B8=D0=B8 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8F * =D0=9E=D1=81=D0=BD=D0=BE=D0=B2=D0=BD=D1=8B=D0=B5 = =D0=B7=D0=B0=D0=B1=D0=BB=D1=83=D0=B6=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2 =D0=B8 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9, =D0=BA=D0=B0=D0=BA =D1=81 =D0=BD=D0=B8=D0=BC=D0=B8 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B0=D1=82=D1=8C, = =D1=87=D1=82=D0=BE=D0=B1=D1=8B =D0=BD=D0=B5 = =D0=B4=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D1=8C =D0=B4=D0=B5=D0=BB=D0=B0 =D0=B4=D0=BE =D1=81=D1=83=D0=B4=D0=B0 * = =D0=9E=D0=B1=D1=8F=D0=B7=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D0=B5 = =D0=B8 = =D1=80=D0=B5=D0=BA=D0=BE=D0=BC=D0=B5=D0=BD=D0=B4=D1=83=D0=B5=D0=BC=D1=8B=D0= =B5 =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=B4=D1=83=D1=80=D1=8B, = =D0=BD=D0=B5=D0=BE=D0=B1=D1=85=D0=BE=D0=B4=D0=B8=D0=BC=D1=8B=D0=B5 = =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D1=8B, = =D1=82=D0=B8=D0=BF=D0=B8=D1=87=D0=BD=D1=8B=D0=B5 = =D0=BE=D1=88=D0=B8=D0=B1=D0=BA=D0=B8 =D0=B8 =D0=B8=D1=85 = =D0=B8=D1=81=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5, = =D0=BA=D0=BE=D1=80=D1=80=D0=B5=D0=BA=D1=82=D0=B8=D1=80=D0=BE=D0=B2=D0=BA=D0= =B0 =D0=BF=D0=BE=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=B0 * =D0=92=D1=8B=D0=B4=D0=B0=D1=87=D0=B0 = =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D0=BE=D0=B2 = =D0=BF=D1=80=D0=B8 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B8 * =D0=92=D0=BD=D0=BE=D1=81=D0=B8=D0=BC = =D0=B7=D0=B0=D0=BF=D0=B8=D1=81=D1=8C =D0=B2 = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=83=D1=8E = =D0=BA=D0=BD=D0=B8=D0=B6=D0=BA=D1=83 = =D0=BF=D1=80=D0=B0=D0=B2=D0=B8=D0=BB=D1=8C=D0=BD=D0=BE, = =D0=BF=D0=BE=D1=87=D0=B5=D0=BC=D1=83 = =D0=B2=D0=BE=D0=B7=D0=BD=D0=B8=D0=BA=D0=B0=D1=8E=D1=82 = =D1=81=D0=BB=D0=BE=D0=B6=D0=BD=D0=BE=D1=81=D1=82=D0=B8 =D1=81 = =D0=B2=D0=BD=D0=B5=D1=81=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC =D0=B7=D0=B0=D0=BF=D0=B8=D1=81=D0=B5=D0=B9: = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=B0, = =D1=80=D0=B0=D1=81=D1=82=D0=BE=D1=80=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B8=D0=BB=D0=B8 = =D0=BF=D1=80=D0=B5=D0=BA=D1=80=D0=B0=D1=89=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0, =D0=BA=D0=B0=D0=BA =D0=BB=D0=B5=D0=B3=D0=BA=D0=BE = =D0=BD=D0=B0=D1=83=D1=87=D0=B8=D1=82=D1=8C=D1=81=D1=8F = =D0=BF=D0=B8=D1=81=D0=B0=D1=82=D1=8C = =D0=BF=D1=80=D0=B0=D0=B2=D0=B8=D0=BB=D1=8C=D0=BD=D1=83=D1=8E = =D0=B7=D0=B0=D0=BF=D0=B8=D1=81=D1=8C=20 * =D0=9E=D1=84=D0=BE=D1=80=D0=BC=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BE=D0=BA=D0=BE=D0=BD=D1=87=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D0= =B3=D0=BE =D1=80=D0=B0=D1=81=D1=87=D0=B5=D1=82=D0=B0 * =D0=98=D1=81=D0=BA=D0=BE=D0=B2=D0=B0=D1=8F = =D0=B4=D0=B0=D0=B2=D0=BD=D0=BE=D1=81=D1=82=D1=8C =D0=BF=D0=BE = =D1=81=D0=BF=D0=BE=D1=80=D0=B0=D0=BC =D0=BE=D0=B1 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B8 * =D0=9F=D1=80=D0=BE=D0=B1=D0=BB=D0=B5=D0=BC=D0=BD=D1=8B=D0=B5 = =D0=BC=D0=B5=D1=81=D1=82=D0=B0 =D0=B2=D1=81=D0=B5=D1=85 = =D0=B2=D0=B8=D0=B4=D0=BE=D0=B2 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9 * =D0=9E=D1=82=D0=BF=D1=83=D1=81=D0=BA =D1=81 = =D0=BF=D0=BE=D1=81=D0=BB=D0=B5=D0=B4=D1=83=D1=8E=D1=89=D0=B8=D0=BC = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC 3. = =D0=A0=D0=B0=D1=81=D1=82=D0=BE=D1=80=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0 =D0=BF=D0=BE = =D1=81=D0=BE=D0=B3=D0=BB=D0=B0=D1=88=D0=B5=D0=BD=D0=B8=D1=8E = =D1=81=D1=82=D0=BE=D1=80=D0=BE=D0=BD: =D0=BD=D0=B0 = =D1=81=D1=82=D1=80=D0=B0=D0=B6=D0=B5 = =D0=B8=D0=BD=D1=82=D0=B5=D1=80=D0=B5=D1=81=D0=BE=D0=B2 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8F.= =D0=9F=D0=BB=D1=8E=D1=81=D1=8B =D0=B8 = =D0=BC=D0=B8=D0=BD=D1=83=D1=81=D1=8B = =D0=B4=D0=B0=D0=BD=D0=BD=D0=BE=D0=B3=D0=BE = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F. = =D0=9E=D0=BF=D1=80=D0=B5=D0=B4=D0=B5=D0=BB=D1=8F=D0=B5=D0=BC = =D0=B2=D1=8B=D1=85=D0=BE=D0=B4=D0=BD=D0=BE=D0=B5 = =D0=BF=D0=BE=D1=81=D0=BE=D0=B1=D0=B8=D0=B5 = =D0=B8=D1=81=D1=85=D0=BE=D0=B4=D1=8F =D0=B8=D0=B7 = =D0=B8=D0=BD=D1=82=D0=B5=D1=80=D0=B5=D1=81=D0=BE=D0=B2 =D0=BA=D0=BE=D0=BC=D0=BF=D0=B0=D0=BD=D0=B8=D0=B8 4. = =D0=9F=D1=80=D0=B5=D0=BA=D1=80=D0=B0=D1=89=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0 =D0=B2 = =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 =D1=81 = =D0=B8=D1=81=D1=82=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=81=D1=80=D0=BE=D0=BA=D0=B0 =D0=B5=D0=B3=D0=BE = =D0=B4=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0=B8=D1=8F. =D0=9F=D0=BE=D1=80=D1=8F=D0=B4=D0=BE=D0=BA = =D1=80=D0=B0=D1=81=D1=82=D0=BE=D1=80=D0=B6=D0=B5=D0=BD=D0=B8=D1=8F, = =D0=BD=D1=8E=D0=B0=D0=BD=D1=81=D1=8B = =D0=BE=D1=84=D0=BE=D1=80=D0=BC=D0=BB=D0=B5=D0=BD=D0=B8=D1=8F, = =D0=BE=D1=88=D0=B8=D0=B1=D0=BA=D0=B8 = =D0=BA=D0=BE=D1=82=D0=BE=D1=80=D1=8B=D0=B5 = =D0=BD=D0=B5=D0=BB=D1=8C=D0=B7=D1=8F = =D0=B4=D0=BE=D0=BF=D1=83=D1=81=D0=BA=D0=B0=D1=82=D1=8C 5. = =D0=A0=D0=B0=D1=81=D1=82=D0=BE=D1=80=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0 =D0=B7=D0=B0 = =D0=B4=D0=B8=D1=81=D1=86=D0=B8=D0=BF=D0=BB=D0=B8=D0=BD=D0=B0=D1=80=D0=BD=D1= =8B=D0=B5 =D0=BF=D1=80=D0=BE=D1=81=D1=82=D1=83=D0=BF=D0=BA=D0=B8 = =E2=80=93 =D0=BE=D1=84=D0=BE=D1=80=D0=BC=D0=BB=D1=8F=D0=B5=D0=BC =D0=BD=D0=B0=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B2=D0=B7=D1=8B=D1=81=D0=BA=D0=B0=D0=BD=D0=B8=D1=8F = =D0=BF=D1=80=D0=B0=D0=B2=D0=B8=D0=BB=D1=8C=D0=BD=D0=BE.=20 * =D0=9F=D0=BE=D1=80=D1=8F=D0=B4=D0=BE=D0=BA = =D0=BD=D0=B0=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D1=8F =D0=B8 = =D0=BE=D1=84=D0=BE=D1=80=D0=BC=D0=BB=D0=B5=D0=BD=D0=B8=D1=8F, = =D0=B7=D0=B0=D0=B1=D0=BB=D1=83=D0=B6=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8F = =D0=B8 =D0=B5=D0=B3=D0=BE = =D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=BD=D1=8B=D0=B5 = =D0=BE=D1=88=D0=B8=D0=B1=D0=BA=D0=B8. = =D0=9F=D0=BE=D0=B4=D0=B3=D0=BE=D1=82=D0=BE=D0=B2=D0=B8=D1=82=D0=B5=D0=BB=D1= =8C=D0=BD=D1=8B=D0=B5 = =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F, = =D0=BF=D1=80=D0=B5=D0=B4=D1=88=D0=B5=D1=81=D1=82=D0=B2=D1=83=D1=8E=D1=89=D0= =B8=D0=B5 =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D1=8E * =D0=A1=D0=B1=D0=BE=D1=80 =D0=B8 = =D0=B0=D0=BD=D0=B0=D0=BB=D0=B8=D0=B7 = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=B8 =D0=BE = =D1=84=D0=B8=D0=B7=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=BE=D0=BC = =D0=BB=D0=B8=D1=86=D0=B5. = =D0=A4=D0=BE=D1=80=D0=BC=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5 = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB=D0=BE=D0=B2 =D0=B8 = =D0=B4=D0=BE=D1=81=D1=8C=D0=B5 =D0=BD=D0=B0 =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA=D0=B0, = =D0=BF=D0=BE=D0=B7=D0=B2=D0=BE=D0=BB=D1=8F=D1=8E=D1=89=D0=B8=D0=B5 = =D1=83=D0=B1=D0=B5=D0=B4=D0=B8=D1=82=D1=8C =D0=B5=D0=B3=D0=BE = =D1=83=D0=B2=D0=BE=D0=BB=D0=B8=D1=82=D1=8C=D1=81=D1=8F. = =D0=9F=D1=80=D0=BE=D0=B2=D0=BE=D0=BA=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D1= =8B=D0=B5 = =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F = =D0=B2 =D0=BA=D0=B0=D0=B4=D1=80=D0=BE=D0=B2=D0=BE=D0=B9 =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B5 6. =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D1=8F=D0=B5=D0=BC = =D0=B7=D0=B0 =D0=BF=D1=80=D0=BE=D0=B3=D1=83=D0=BB.=20 7. =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D1=8F=D0=B5=D0=BC = =D0=B7=D0=B0 = =D0=B0=D0=BB=D0=BA=D0=BE=D0=B3=D0=BE=D0=BB=D1=8C=D0=BD=D0=BE=D0=B5 = =D0=BE=D0=BF=D1=8C=D1=8F=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5. 8. =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B7=D0=B0 = =D1=80=D0=B0=D0=B7=D0=B3=D0=BB=D0=B0=D1=88=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BA=D0=BE=D0=BC=D0=BC=D0=B5=D1=80=D1=87=D0=B5=D1=81=D0=BA=D0=BE=D0=B9 = =D1=82=D0=B0=D0=B9=D0=BD=D1=8B =D0=B8 = =D0=BF=D0=B5=D1=80=D1=81=D0=BE=D0=BD=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D1=85 = =D0=B4=D0=B0=D0=BD=D0=BD=D1=8B=D1=85.=20 9. =D0=A1=D1=83=D0=B4=D0=B5=D0=B1=D0=BD=D0=B0=D1=8F = =D0=BF=D1=80=D0=B0=D0=BA=D1=82=D0=B8=D0=BA=D0=B0 = =D1=80=D0=B0=D0=B7=D1=80=D0=B5=D1=88=D0=B5=D0=BD=D0=B8=D1=8F = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=8B=D1=85 = =D0=BA=D0=BE=D0=BD=D1=84=D0=BB=D0=B8=D0=BA=D1=82=D0=BE=D0=B2 = =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D1=85 =D1=81 = =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC.=20 10. =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B1=D0=B5=D1=80=D0=B5=D0=BC=D0=B5=D0=BD=D0=BD=D1=8B=D1=85 = =D0=B6=D0=B5=D0=BD=D1=89=D0=B8=D0=BD, = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9 =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B9, = =D1=81=D0=BE=D0=B2=D0=BC=D0=B5=D1=81=D1=82=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9, = =D0=B8=D0=BD=D0=BE=D1=81=D1=82=D1=80=D0=B0=D0=BD=D0=BD=D1=8B=D1=85 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2: = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BD=D1=8B=D0=B5 = =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=B4=D1=83=D1=80=D1=8B = =D1=80=D0=B0=D1=81=D1=82=D0=BE=D1=80=D0=B6=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0.=20 11. =D0=A2=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=8B=D0=B5 = =D1=81=D0=BF=D0=BE=D1=80=D1=8B: * =D0=92 =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 =D1=81 = =D0=B8=D1=81=D1=82=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=81=D1=80=D0=BE=D0=BA=D0=B0 = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0 * =D0=A1=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5 =D1=81 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=B0 =D0=BF=D0=BE = =D1=81=D0=BE=D0=B1=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D0=BC=D1=83 = =D0=B6=D0=B5=D0=BB=D0=B0=D0=BD=D0=B8=D1=8E * =D0=A1=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5 =D1=81 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=B0 =D0=B7=D0=B0 = =D0=BF=D1=80=D0=BE=D0=B3=D1=83=D0=BB * =D0=A1=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5 =D1=81 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=B0 =D0=B7=D0=B0 = =D0=BF=D0=BE=D1=8F=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 =D0=BD=D0=B0 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B5 =D0=B2 = =D1=81=D0=BE=D1=81=D1=82=D0=BE=D1=8F=D0=BD=D0=B8=D0=B8 = =D0=B0=D0=BB=D0=BA=D0=BE=D0=B3=D0=BE=D0=BB=D1=8C=D0=BD=D0=BE=D0=B3=D0=BE,= =D0=B8=D0=BB=D0=B8 = =D0=BD=D0=B0=D1=80=D0=BA=D0=BE=D1=82=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=BE=D0= =B3=D0=BE =D0=BE=D0=BF=D1=8C=D1=8F=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F * =D0=92 =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 =D1=81 = =D1=80=D0=B0=D1=81=D1=82=D0=BE=D1=80=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0 =D0=BF=D0=BE = =D0=BF=D1=80=D0=B8=D1=87=D0=B8=D0=BD=D0=B5 = =D0=BD=D0=B5=D0=BE=D0=B4=D0=BD=D0=BE=D0=BA=D1=80=D0=B0=D1=82=D0=BD=D0=BE=D0= =B3=D0=BE = =D0=BD=D0=B5=D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=BC = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=8B=D1=85 = =D0=BE=D0=B1=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0=B5=D0=B9 = (=D0=BF.5 =D1=81=D1=82.81 =D0=A2=D0=9A =D0=A0=D0=A4) * =D0=92 =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 =D1=81 = =D0=BD=D0=B5=D1=83=D0=B4=D0=BE=D0=B2=D0=BB=D0=B5=D1=82=D0=B2=D0=BE=D1=80=D0= =B8=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D0=BC = =D1=80=D0=B5=D0=B7=D1=83=D0=BB=D1=8C=D1=82=D0=B0=D1=82=D0=BE=D0=BC = =D0=B8=D1=81=D0=BF=D1=8B=D1=82=D0=B0=D0=BD=D0=B8=D1=8F = =D0=BF=D1=80=D0=B8 =D0=BF=D1=80=D0=B8=D0=B5=D0=BC=D0=B5 =D0=BD=D0=B0 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D1=83 * =D0=92 =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=BF=D0=BE = =D1=81=D0=BE=D0=B3=D0=BB=D0=B0=D1=88=D0=B5=D0=BD=D0=B8=D1=8E = =D1=81=D1=82=D0=BE=D1=80=D0=BE=D0=BD * =D0=92 =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=BF=D0=BE = =D1=81=D0=BE=D0=BA=D1=80=D0=B0=D1=89=D0=B5=D0=BD=D0=B8=D1=8E = =D1=88=D1=82=D0=B0=D1=82=D0=B0 =D0=B8 = =D1=87=D0=B8=D1=81=D0=BB=D0=B5=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0=B8 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2 =D0=A2=D0=9E=D0=9F-10 =D0=BE=D1=88=D0=B8=D0=B1=D0=BE=D0=BA = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9 =D0=BF=D1=80=D0=B8 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B8.=20 =20 - - - =D0=A3=D1=87=D0=B0=D1=81=D1=82=D0=B8=D0=B5 =D0=B2 = =D0=B4=D0=B0=D0=BD=D0=BD=D0=BE=D0=BC = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B8 = =D1=81=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D0=B8=D1=82: 11 800 = =D1=80=D1=83=D0=B1. =D0=9F=D0=BE=D1=81=D0=BB=D0=B5 = =D0=BE=D0=BA=D0=BE=D0=BD=D1=87=D0=B0=D0=BD=D0=B8=D1=8F = =D0=B7=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D1=8F =D0=92=D0=B0=D0=BC = =D0=B2=D1=8B=D0=B4=D0=B0=D0=B5=D1=82=D1=81=D1=8F =D0=BD=D0=B0=D1=88 = =D1=81=D0=B5=D1=80=D1=82=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=82. =D0=92 = =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D0=B5 = =D0=B2=D0=BA=D0=BB=D1=8E=D1=87=D0=B5=D0=BD=D0=BE: = =D0=BC=D0=B5=D1=82=D0=BE=D0=B4=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D0=B9 = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB, = =D0=BE=D0=B1=D0=B5=D0=B4=D1=8B, = =D0=BA=D0=BE=D1=84=D0=B5-=D0=BF=D0=B0=D1=83=D0=B7=D1=8B. =D0=98=D0=BD=D0=BE=D0=B3=D0=BE=D1=80=D0=BE=D0=B4=D0=BD=D0=B8=D0=BC = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=BD=D0=B8=D0=BA=D0=B0=D0=BC = =D0=BF=D0=BE=D0=BC=D0=BE=D0=B3=D0=B0=D0=B5=D0=BC =D0=B2 = =D0=B1=D1=80=D0=BE=D0=BD=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B8 = =D0=B3=D0=BE=D1=81=D1=82=D0=B8=D0=BD=D0=B8=D1=86=D1=8B. =20 =20 ------=_NextPart_000_003C_01D1161E.4D8421B0 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
                   

=D0=A3=D1=87=D0=B5=D0=B1=D0=BD=D1=8B=D0=B9 = =D1=86=D0=B5=D0=BD=D1=82=D1=80 = =D0=BF=D1=80=D0=B8=D0=B3=D0=BB=D0=B0=D1=88=D0=B0=D0=B5=D1=82 = =D0=BD=D0=B0=20 =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 =D0=BF=D0=BE = =D1=82=D0=B5=D0=BC=D0=B5:
 

=D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D0=B5=D1=80=D1=81=D0=BE=D0=BD=D0=B0=D0=BB=D0=B0.
=D0=91=D0=B5=D0= =B7=D0=BE=D0=BF=D0=B0=D1=81=D0=BD=D0=BE =D0=B8=20 = =D0=B1=D0=B5=D1=81=D0=BA=D0=BE=D0=BD=D1=84=D0=BB=D0=B8=D0=BA=D1=82=D0=BD=D0= =BE.

=D0=A6=D0=B5=D0=BB=D0=B5=D0=B2=D0=B0=D1=8F = =D0=B0=D1=83=D0=B4=D0=B8=D1=82=D0=BE=D1=80=D0=B8=D1=8F: = =D0=A0=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0= =B8 =D0=B8=20 =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA=D0=B8 = =D0=BA=D0=B0=D0=B4=D1=80=D0=BE=D0=B2=D1=8B=D1=85 = =D1=81=D0=BB=D1=83=D0=B6=D0=B1, = =D0=B4=D0=B8=D1=80=D0=B5=D0=BA=D1=82=D0=BE=D1=80=D0=B0 = =D0=B8
=D0=BC=D0=B5=D0=BD=D0=B5=D0=B4=D0=B6=D0=B5=D1=80=D1=8B = =D0=BF=D0=BE =D0=BF=D0=B5=D1=80=D1=81=D0=BE=D0=BD=D0=B0=D0=BB=D1=83,=20 =D0=B1=D1=83=D1=85=D0=B3=D0=B0=D0=BB=D1=82=D0=B5=D1=80=D1=8B, = =D1=8E=D1=80=D0=B8=D1=81=D1=82=D1=8B, = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B8 = =D0=BA=D0=BE=D0=BC=D0=BF=D0=B0=D0=BD=D0=B8=D0=B9.
 

           

18 =D0=BD=D0=BE=D1=8F=D0=B1=D1=80=D1=8F = 2015 =D0=B3=D0=BE=D0=B4=D0=B0, =D0=B3=D0=BE=D1=80=D0=BE=D0=B4 = =D0=9C=D0=BE=D1=81=D0=BA=D0=B2=D0=B0 | = (=D0=B0=D1=80=D1=82=D0=B8=D0=BA=D1=83=D0=BB: = 250)

=D0=97=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D0=B5=20 =D0=BF=D1=80=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D1=81=D1=8F c = 10:00 =D0=B4=D0=BE 17:30

=D0=90=D0=B4=D1=80=D0=B5=D1=81 = =D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F: = =D1=83=D0=BB. = =D0=91=D0=B0=D1=83=D0=BC=D0=B0=D0=BD=D1=81=D0=BA=D0=B0=D1=8F,=20 =D0=B4.6, =D1=81=D1=82=D1=80.2, =D0=91.=D0=A6. "=D0=92=D0=B8=D0=BA=D1=82=D0=BE=D1=80=D0=B8=D1=8F = =D0=9F=D0=BB=D0=B0=D0=B7=D0=B0".

=D0=A3=D0=B7=D0=BD=D0=B0=D1=82=D1=8C= =D0=92=D1=81=D1=8E = =D0=BF=D0=BE=D0=B4=D1=80=D0=BE=D0=B1=D0=BD=D1=83=D1=8E = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D1=8E =D0=B8=20 =D0=BF=D0=BE=D0=B4=D0=B0=D1=82=D1=8C = =D0=B7=D0=B0=D1=8F=D0=B2=D0=BA=D1=83 =D0=BD=D0=B0 = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 =D0=92=D1=8B = =D0=BC=D0=BE=D0=B6=D0=B5=D1=82=D0=B5 =D0=BF=D0=BE = =D1=82=D0=B5=D0=BB=D0=B5=D1=84=D0=BE=D0=BD=D1=83 :=20

 8  =D0=BA=D0=BE=D0=B4=20 =D0=B3=D0=BE=D1=80=D0=BE=D0=B4=D0=B0  = ( 4 9 5=20 )  =D0=BD=D0=BE=D0=BC=D0=B5=D1=80  7 2 5 -=20 0 4 -=20 4 = 8.

=D0=92=D1=8B =D0=BC=D0=BE=D0=B6=D0=B5=D1=82=D0=B5 = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=B2=D0=BE=D0=B2=D0=B0=D1=82=D1=8C = =D0=B2 =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=BA=D0=B0=D0=BA =D0=BE=D1=82 = =D0=BA=D0=BE=D0=BC=D0=BF=D0=B0=D0=BD=D0=B8=D0=B8, =D1=82=D0=B0=D0=BA = =D0=B8 =D0=BA=D0=B0=D0=BA =D1=87=D0=B0=D1=81=D1=82=D0=BD=D0=BE=D0=B5=20 = =D0=BB=D0=B8=D1=86=D0=BE.
(=D0=BF=D0=BE=D0=B6=D0=B0=D0=BB=D1=83=D0=B9=D1= =81=D1=82=D0=B0 =D0=BD=D0=B5 = =D0=BE=D1=82=D0=B2=D0=B5=D1=87=D0=B0=D0=B9=D1=82=D0=B5 =D0=BD=D0=B0 = =D0=BE=D0=B1=D1=80=D0=B0=D1=82=D0=BD=D1=8B=D0=B9 = =D0=B0=D0=B4=D1=80=D0=B5=D1=81=20 = =D1=8D=D0=BB.=D0=BF=D0=BE=D1=87=D1=82=D1=8B)

                          =D0=91=D0=BE=D0=BB=D1=8C=D1=88=D0=B8=D0=BD=D1=81=D1=82=D0=B2=D0=BE= =D1=81=D0=BF=D0=BE=D1=80=D0=BE=D0=B2,=20 =D0=B2=D0=BE=D0=B7=D0=BD=D0=B8=D0=BA=D0=B0=D1=8E=D1=89=D0=B8=D1=85 = =D0=B8=D0=B7 =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=8B=D1=85 = =D0=BE=D1=82=D0=BD=D0=BE=D1=88=D0=B5=D0=BD=D0=B8=D0=B9, = =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BE =D1=81 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2,
=D0=B0=20 =D1=82=D0=B0=D0=BA=D0=B6=D0=B5 =D1=81 = =D0=BD=D0=B5=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BD=D1=8B=D0=BC = =D0=BF=D1=80=D0=B8=D0=B2=D0=BB=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=B8=D0=BD=D0=BE=D1=81=D1=82=D1=80=D0=B0=D0=BD=D0=BD=D1=8B=D1=85 = =D0=B3=D1=80=D0=B0=D0=B6=D0=B4=D0=B0=D0=BD =D0=BA = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B5. = =D0=9D=D0=B5=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BD=D0=BE=D0=B5=20 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5,
=D0=BF=D0= =BE=D0=BC=D0=B8=D0=BC=D0=BE = =D0=BD=D0=B5=D0=BE=D0=B1=D1=85=D0=BE=D0=B4=D0=B8=D0=BC=D0=BE=D1=81=D1=82=D0= =B8 = =D0=B2=D0=BE=D1=81=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0= =B8=D1=8F =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=B0 = =D0=BD=D0=B0 =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B5,=20 =D0=B2=D0=BB=D0=B5=D1=87=D0=B5=D1=82 = =D0=BD=D0=B5=D0=B1=D0=BB=D0=B0=D0=B3=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0= =BD=D1=8B=D0=B5
=D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB=D1=8C= =D0=BD=D1=8B=D0=B5 =D0=B8 = =D1=80=D0=B5=D0=BF=D1=83=D1=82=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D1=8B=D0= =B5 =D0=BF=D0=BE=D1=81=D0=BB=D0=B5=D0=B4=D1=81=D1=82=D0=B2=D0=B8=D1=8F = =D0=B4=D0=BB=D1=8F=20 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8F.= =D0=94=D0=BB=D1=8F =D1=82=D0=BE=D0=B3=D0=BE = =D1=87=D1=82=D0=BE=D0=B1=D1=8B = =D0=B3=D1=80=D0=B0=D0=BC=D0=BE=D1=82=D0=BD=D0=BE
=D1=80=D0=B0=D1=81=D1= =81=D1=82=D0=B0=D1=82=D1=8C=D1=81=D1=8F =D1=81 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=BC,=20 = =D0=BD=D0=B5=D0=B4=D0=BE=D1=81=D1=82=D0=B0=D1=82=D0=BE=D1=87=D0=BD=D0=BE = =D0=BD=D0=B0=D0=B9=D1=82=D0=B8 =D0=BF=D0=BE=D0=B2=D0=BE=D0=B4 = =D0=B4=D0=BB=D1=8F = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F, = =D0=BD=D0=B5=D0=BE=D0=B1=D1=85=D0=BE=D0=B4=D0=B8=D0=BC=D0=BE = =D1=87=D0=B5=D1=82=D0=BA=D0=BE=D0=B5
=D1=81=D0=BE=D0=B1=D0=BB=D1=8E=D0= =B4=D0=B5=D0=BD=D0=B8=D0=B5=20 = =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=BD=D1=8B=D1= =85 =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=BC =D0=BD=D0=BE=D1=80=D0=BC, = =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=B4=D1=83=D1=80, = =D1=81=D0=BE=D0=BF=D1=80=D0=BE=D0=B2=D0=BE=D0=B6=D0=B4=D0=B0=D0=B5=D0=BC=D1= =8B=D1=85 =D0=BA=D0=B0=D0=B4=D1=80=D0=BE=D0=B2=D0=BE=D0=B9=20 = =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D0=B0=D1=86=D0=B8=D0=B5=D0= =B9.
=D0=A1=D0=BE=D0=B1=D0=BB=D1=8E=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=BD=D1=8B=D1= =85 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=BE=D0=BC =D0=BD=D0=BE=D1=80=D0=BC =D0=B8=20 =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=B4=D1=83=D1=80 = =D0=BF=D1=80=D0=B5=D0=BA=D1=80=D0=B0=D1=89=D0=B5=D0=BD=D0=B8=D1=8F = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE
=D0=B4=D0=BE=D0= =B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0 = =D0=BC=D0=B8=D0=BD=D0=B8=D0=BC=D0=B8=D0=B7=D0=B8=D1=80=D1=83=D0=B5=D1=82 = =D0=B2 =D0=B4=D0=B0=D0=BB=D1=8C=D0=BD=D0=B5=D0=B9=D1=88=D0=B5=D0=BC=20 =D1=80=D0=B8=D1=81=D0=BA=D0=B8, = =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5 =D1=81 = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=8B=D0=BC = =D1=81=D0=BF=D0=BE=D1=80=D0=BE=D0=BC.                          

=D0=9E=D0=BF=D0=B8=D1=81=D0=B0=D0=BD=D0=B8=D0=B5 = =D0=BF=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D1=8B:

           
1.=20 =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D1=8F=D0=B5=D0=BC = =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA=D0=B0 = =D0=B1=D0=B5=D0=B7 = =D0=BF=D1=80=D0=BE=D0=B1=D0=BB=D0=B5=D0=BC.
* = =D0=A4=D0=BE=D1=80=D0=BC=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8= =D0=B5 = =D0=BF=D1=81=D0=B8=D1=85=D0=BE=D0=BB=D0=BE=D0=B3=D0=B8=D1=87=D0=B5=D1=81=D0= =BA=D0=BE=D0=B3=D0=BE =D0=BF=D0=BE=D1=80=D1=82=D1=80=D0=B5=D1=82=D0=B0=20 = =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA=D0=B0
* =D0=9C=D0=B5=D1=82=D0=BE=D0=B4=D1=8B = =D0=B8 =D0=BF=D1=80=D0=B8=D0=B5=D0=BC=D1=8B=20 =D0=BF=D1=81=D0=B8=D1=85=D0=BE=D0=BB=D0=BE=D0=B3=D0=B8=D0=B8, = =D1=81=D0=BF=D0=BE=D1=81=D0=BE=D0=B1=D1=81=D1=82=D0=B2=D1=83=D1=8E=D1=89=D0= =B8=D0=B5 =D1=83=D0=B1=D0=B5=D0=B4=D0=B8=D1=82=D1=8C = =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA=D0=B0 = =D1=83=D0=B2=D0=BE=D0=BB=D0=B8=D1=82=D1=8C=D1=81=D1=8F
* = =D0=9A=D0=BE=D0=BD=D1=84=D0=BB=D0=B8=D0=BA=D1=82=D1=8B = =D0=BF=D1=80=D0=B8 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B8 =D0=B8 = =D0=B1=D0=BE=D1=80=D1=8C=D0=B1=D0=B0=20 = =D0=BA=D0=BE=D0=BC=D0=BF=D1=80=D0=BE=D0=BC=D0=B0=D1=82=D0=BE=D0=B2
* =D0=A7=D1=82=D0=BE = =D1=81=D0=B4=D0=B5=D0=BB=D0=B0=D1=82=D1=8C, = =D1=87=D1=82=D0=BE=D0=B1=D1=8B=20 =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA = =D0=BD=D0=B5 =D1=81=D0=BC=D0=BE=D0=B3 = =D0=BF=D0=B5=D1=80=D0=B5=D0=B4=D1=83=D0=BC=D0=B0=D1=82=D1=8C
*=20 =D0=98=D0=BC=D0=B8=D0=B4=D0=B6=D0=B5=D0=B2=D1=8B=D0=B5 = =D0=B0=D1=81=D0=BF=D0=B5=D0=BA=D1=82=D1=8B = =D0=B2=D0=BE=D0=B7=D0=B4=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0=B8=D1=8F = =D0=BD=D0=B0 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D1=8F=D1=8E=D1=89=D0=B5=D0=B3=D0=BE=D1= =81=D1=8F = =D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA=D0=B0
* = =D0=97=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB= =D1=8C=D0=BD=D1=8B=D0=B5 =D0=BC=D0=B5=D1=80=D1=8B = =D0=B1=D0=BE=D1=80=D1=8C=D0=B1=D1=8B =D1=81 = =C2=AB=D0=BA=D0=B0=D0=B4=D1=80=D0=BE=D0=B2=D1=8B=D0=BC=20 = =D1=8D=D0=BA=D1=81=D1=82=D1=80=D0=B5=D0=BC=D0=B8=D0=B7=D0=BC=D0=BE=D0=BC=C2= =BB - = =D0=BD=D0=B5=D0=BE=D0=B1=D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=B0=D0=BD=D0=BD=D1= =8B=D0=BC=D0=B8 =D0=B6=D0=B0=D0=BB=D0=BE=D0=B1=D0=B0=D0=BC=D0=B8 = =D0=B2
=D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=83=D1=8E = =D0=B8=D0=BD=D1=81=D0=BF=D0=B5=D0=BA=D1=86=D0=B8=D1=8E,=20 =D1=81=D1=83=D0=B4=D0=B5=D0=B1=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=B8=D1=81=D0=BA=D0=B0=D0=BC=D0=B8
2. = =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=20 =D0=BF=D0=BE = =D1=81=D0=BE=D0=B1=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D0=BC=D1=83 = =D0=B6=D0=B5=D0=BB=D0=B0=D0=BD=D0=B8=D1=8E.
* =D0=A7=D1=82=D0=BE=20 =D0=BD=D1=83=D0=B6=D0=BD=D0=BE =D0=B7=D0=BD=D0=B0=D1=82=D1=8C = =D0=BE =D0=B7=D0=B0=D1=8F=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B8, = =D0=BE=D0=B1 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=BF=D1=80=D0=B5=D0=B4=D1=83=D0=BF=D1=80=D0=B5=D0=B6=D0=B4=D0=B5=D0=BD=D0= =B8=D0=B8=20 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8F<= BR>* = =D0=9E=D1=81=D0=BD=D0=BE=D0=B2=D0=BD=D1=8B=D0=B5 = =D0=B7=D0=B0=D0=B1=D0=BB=D1=83=D0=B6=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F=20 =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2 = =D0=B8 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9, =D0=BA=D0=B0=D0=BA =D1=81 =D0=BD=D0=B8=D0=BC=D0=B8 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B0=D1=82=D1=8C, = =D1=87=D1=82=D0=BE=D0=B1=D1=8B =D0=BD=D0=B5 = =D0=B4=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D1=8C
=D0=B4=D0=B5=D0=BB=D0= =B0=20 =D0=B4=D0=BE =D1=81=D1=83=D0=B4=D0=B0
* = =D0=9E=D0=B1=D1=8F=D0=B7=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B= =D0=B5 =D0=B8=20 = =D1=80=D0=B5=D0=BA=D0=BE=D0=BC=D0=B5=D0=BD=D0=B4=D1=83=D0=B5=D0=BC=D1=8B=D0= =B5 =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=B4=D1=83=D1=80=D1=8B, = =D0=BD=D0=B5=D0=BE=D0=B1=D1=85=D0=BE=D0=B4=D0=B8=D0=BC=D1=8B=D0=B5 = =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D1=8B, = =D1=82=D0=B8=D0=BF=D0=B8=D1=87=D0=BD=D1=8B=D0=B5 = =D0=BE=D1=88=D0=B8=D0=B1=D0=BA=D0=B8 =D0=B8=20 = =D0=B8=D1=85
=D0=B8=D1=81=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0= =B8=D0=B5, = =D0=BA=D0=BE=D1=80=D1=80=D0=B5=D0=BA=D1=82=D0=B8=D1=80=D0=BE=D0=B2=D0=BA=D0= =B0 =D0=BF=D0=BE=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=B0
* = =D0=92=D1=8B=D0=B4=D0=B0=D1=87=D0=B0 = =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D0=BE=D0=B2 = =D0=BF=D1=80=D0=B8 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B8
* = =D0=92=D0=BD=D0=BE=D1=81=D0=B8=D0=BC = =D0=B7=D0=B0=D0=BF=D0=B8=D1=81=D1=8C =D0=B2 = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=83=D1=8E = =D0=BA=D0=BD=D0=B8=D0=B6=D0=BA=D1=83 = =D0=BF=D1=80=D0=B0=D0=B2=D0=B8=D0=BB=D1=8C=D0=BD=D0=BE,=20 =D0=BF=D0=BE=D1=87=D0=B5=D0=BC=D1=83 = =D0=B2=D0=BE=D0=B7=D0=BD=D0=B8=D0=BA=D0=B0=D1=8E=D1=82 = =D1=81=D0=BB=D0=BE=D0=B6=D0=BD=D0=BE=D1=81=D1=82=D0=B8 =D1=81 = =D0=B2=D0=BD=D0=B5=D1=81=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC
=D0=B7=D0=B0=D0= =BF=D0=B8=D1=81=D0=B5=D0=B9: = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=B0,=20 =D1=80=D0=B0=D1=81=D1=82=D0=BE=D1=80=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B8=D0=BB=D0=B8 = =D0=BF=D1=80=D0=B5=D0=BA=D1=80=D0=B0=D1=89=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0,
=D0=BA=D0=B0=D0=BA = =D0=BB=D0=B5=D0=B3=D0=BA=D0=BE = =D0=BD=D0=B0=D1=83=D1=87=D0=B8=D1=82=D1=8C=D1=81=D1=8F=20 =D0=BF=D0=B8=D1=81=D0=B0=D1=82=D1=8C = =D0=BF=D1=80=D0=B0=D0=B2=D0=B8=D0=BB=D1=8C=D0=BD=D1=83=D1=8E = =D0=B7=D0=B0=D0=BF=D0=B8=D1=81=D1=8C
*=20 = =D0=9E=D1=84=D0=BE=D1=80=D0=BC=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BE=D0=BA=D0=BE=D0=BD=D1=87=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D0= =B3=D0=BE =D1=80=D0=B0=D1=81=D1=87=D0=B5=D1=82=D0=B0
*=20 =D0=98=D1=81=D0=BA=D0=BE=D0=B2=D0=B0=D1=8F = =D0=B4=D0=B0=D0=B2=D0=BD=D0=BE=D1=81=D1=82=D1=8C =D0=BF=D0=BE = =D1=81=D0=BF=D0=BE=D1=80=D0=B0=D0=BC =D0=BE=D0=B1 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B8
* = =D0=9F=D1=80=D0=BE=D0=B1=D0=BB=D0=B5=D0=BC=D0=BD=D1=8B=D0=B5 = =D0=BC=D0=B5=D1=81=D1=82=D0=B0 =D0=B2=D1=81=D0=B5=D1=85 = =D0=B2=D0=B8=D0=B4=D0=BE=D0=B2=20 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9
* =D0=9E=D1=82=D0=BF=D1=83=D1=81=D0=BA = =D1=81 = =D0=BF=D0=BE=D1=81=D0=BB=D0=B5=D0=B4=D1=83=D1=8E=D1=89=D0=B8=D0=BC=20 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC
= 3. = =D0=A0=D0=B0=D1=81=D1=82=D0=BE=D1=80=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5=20 =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0 =D0=BF=D0=BE = =D1=81=D0=BE=D0=B3=D0=BB=D0=B0=D1=88=D0=B5=D0=BD=D0=B8=D1=8E = =D1=81=D1=82=D0=BE=D1=80=D0=BE=D0=BD: =D0=BD=D0=B0 = =D1=81=D1=82=D1=80=D0=B0=D0=B6=D0=B5 = =D0=B8=D0=BD=D1=82=D0=B5=D1=80=D0=B5=D1=81=D0=BE=D0=B2
    = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB= =D1=8F.
=D0=9F=D0=BB=D1=8E=D1=81=D1=8B =D0=B8 = =D0=BC=D0=B8=D0=BD=D1=83=D1=81=D1=8B=20 =D0=B4=D0=B0=D0=BD=D0=BD=D0=BE=D0=B3=D0=BE = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F. = =D0=9E=D0=BF=D1=80=D0=B5=D0=B4=D0=B5=D0=BB=D1=8F=D0=B5=D0=BC = =D0=B2=D1=8B=D1=85=D0=BE=D0=B4=D0=BD=D0=BE=D0=B5 = =D0=BF=D0=BE=D1=81=D0=BE=D0=B1=D0=B8=D0=B5 = =D0=B8=D1=81=D1=85=D0=BE=D0=B4=D1=8F =D0=B8=D0=B7=20 = =D0=B8=D0=BD=D1=82=D0=B5=D1=80=D0=B5=D1=81=D0=BE=D0=B2
=D0=BA=D0=BE=D0= =BC=D0=BF=D0=B0=D0=BD=D0=B8=D0=B8
4.=20 =D0=9F=D1=80=D0=B5=D0=BA=D1=80=D0=B0=D1=89=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0 =D0=B2 = =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 =D1=81 = =D0=B8=D1=81=D1=82=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=81=D1=80=D0=BE=D0=BA=D0=B0 =D0=B5=D0=B3=D0=BE=20 = =D0=B4=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0=B8=D1=8F.
=D0=9F=D0=BE=D1=80= =D1=8F=D0=B4=D0=BE=D0=BA = =D1=80=D0=B0=D1=81=D1=82=D0=BE=D1=80=D0=B6=D0=B5=D0=BD=D0=B8=D1=8F, = =D0=BD=D1=8E=D0=B0=D0=BD=D1=81=D1=8B = =D0=BE=D1=84=D0=BE=D1=80=D0=BC=D0=BB=D0=B5=D0=BD=D0=B8=D1=8F, = =D0=BE=D1=88=D0=B8=D0=B1=D0=BA=D0=B8 = =D0=BA=D0=BE=D1=82=D0=BE=D1=80=D1=8B=D0=B5=20 =D0=BD=D0=B5=D0=BB=D1=8C=D0=B7=D1=8F = =D0=B4=D0=BE=D0=BF=D1=83=D1=81=D0=BA=D0=B0=D1=82=D1=8C
5. = =D0=A0=D0=B0=D1=81=D1=82=D0=BE=D1=80=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5=20 =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0 =D0=B7=D0=B0 = =D0=B4=D0=B8=D1=81=D1=86=D0=B8=D0=BF=D0=BB=D0=B8=D0=BD=D0=B0=D1=80=D0=BD=D1= =8B=D0=B5 =D0=BF=D1=80=D0=BE=D1=81=D1=82=D1=83=D0=BF=D0=BA=D0=B8 = =E2=80=93 = =D0=BE=D1=84=D0=BE=D1=80=D0=BC=D0=BB=D1=8F=D0=B5=D0=BC
    = =D0=BD=D0=B0=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B2=D0=B7=D1=8B=D1=81=D0=BA=D0=B0=D0=BD=D0=B8=D1=8F = =D0=BF=D1=80=D0=B0=D0=B2=D0=B8=D0=BB=D1=8C=D0=BD=D0=BE.=20
* = =D0=9F=D0=BE=D1=80=D1=8F=D0=B4=D0=BE=D0=BA = =D0=BD=D0=B0=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D1=8F =D0=B8=20 =D0=BE=D1=84=D0=BE=D1=80=D0=BC=D0=BB=D0=B5=D0=BD=D0=B8=D1=8F, = =D0=B7=D0=B0=D0=B1=D0=BB=D1=83=D0=B6=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8F = =D0=B8 =D0=B5=D0=B3=D0=BE = =D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=BD=D1=8B=D0=B5=20 = =D0=BE=D1=88=D0=B8=D0=B1=D0=BA=D0=B8.
=D0=9F=D0=BE=D0=B4=D0=B3=D0=BE=D1= =82=D0=BE=D0=B2=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D0=B5 = =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F, = =D0=BF=D1=80=D0=B5=D0=B4=D1=88=D0=B5=D1=81=D1=82=D0=B2=D1=83=D1=8E=D1=89=D0= =B8=D0=B5=20 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D1=8E
* =D0=A1=D0=B1=D0=BE=D1=80 =D0=B8 = =D0=B0=D0=BD=D0=B0=D0=BB=D0=B8=D0=B7=20 =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=B8 = =D0=BE =D1=84=D0=B8=D0=B7=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=BE=D0=BC = =D0=BB=D0=B8=D1=86=D0=B5. = =D0=A4=D0=BE=D1=80=D0=BC=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5 = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB=D0=BE=D0=B2 =D0=B8 = =D0=B4=D0=BE=D1=81=D1=8C=D0=B5=20 = =D0=BD=D0=B0
=D1=81=D0=BE=D1=82=D1=80=D1=83=D0=B4=D0=BD=D0=B8=D0=BA=D0= =B0, =D0=BF=D0=BE=D0=B7=D0=B2=D0=BE=D0=BB=D1=8F=D1=8E=D1=89=D0=B8=D0=B5 = =D1=83=D0=B1=D0=B5=D0=B4=D0=B8=D1=82=D1=8C =D0=B5=D0=B3=D0=BE = =D1=83=D0=B2=D0=BE=D0=BB=D0=B8=D1=82=D1=8C=D1=81=D1=8F. = =D0=9F=D1=80=D0=BE=D0=B2=D0=BE=D0=BA=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D1= =8B=D0=B5=20 =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F = =D0=B2 = =D0=BA=D0=B0=D0=B4=D1=80=D0=BE=D0=B2=D0=BE=D0=B9
=D1=80=D0=B0=D0=B1=D0= =BE=D1=82=D0=B5
6. = =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D1=8F=D0=B5=D0=BC =D0=B7=D0=B0 = =D0=BF=D1=80=D0=BE=D0=B3=D1=83=D0=BB.
7. = =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D1=8F=D0=B5=D0=BC =D0=B7=D0=B0 = =D0=B0=D0=BB=D0=BA=D0=BE=D0=B3=D0=BE=D0=BB=D1=8C=D0=BD=D0=BE=D0=B5=20 =D0=BE=D0=BF=D1=8C=D1=8F=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5.
8. = =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B7=D0=B0=20 =D1=80=D0=B0=D0=B7=D0=B3=D0=BB=D0=B0=D1=88=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BA=D0=BE=D0=BC=D0=BC=D0=B5=D1=80=D1=87=D0=B5=D1=81=D0=BA=D0=BE=D0=B9 = =D1=82=D0=B0=D0=B9=D0=BD=D1=8B =D0=B8 = =D0=BF=D0=B5=D1=80=D1=81=D0=BE=D0=BD=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D1=85 = =D0=B4=D0=B0=D0=BD=D0=BD=D1=8B=D1=85.
9. = =D0=A1=D1=83=D0=B4=D0=B5=D0=B1=D0=BD=D0=B0=D1=8F = =D0=BF=D1=80=D0=B0=D0=BA=D1=82=D0=B8=D0=BA=D0=B0 = =D1=80=D0=B0=D0=B7=D1=80=D0=B5=D1=88=D0=B5=D0=BD=D0=B8=D1=8F = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=8B=D1=85=20 =D0=BA=D0=BE=D0=BD=D1=84=D0=BB=D0=B8=D0=BA=D1=82=D0=BE=D0=B2 = =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D1=85 =D1=81 = =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC. =
10. = =D0=A3=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B1=D0=B5=D1=80=D0=B5=D0=BC=D0=B5=D0=BD=D0=BD=D1=8B=D1=85 = =D0=B6=D0=B5=D0=BD=D1=89=D0=B8=D0=BD,=20 = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9 =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B9, = =D1=81=D0=BE=D0=B2=D0=BC=D0=B5=D1=81=D1=82=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9,
        = =D0=B8=D0=BD=D0=BE=D1=81=D1=82=D1=80=D0=B0=D0=BD=D0=BD=D1=8B=D1=85=20 =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2: = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BD=D1=8B=D0=B5 = =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=B4=D1=83=D1=80=D1=8B = =D1=80=D0=B0=D1=81=D1=82=D0=BE=D1=80=D0=B6=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0.
11. = =D0=A2=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=8B=D0=B5 = =D1=81=D0=BF=D0=BE=D1=80=D1=8B:
 * =D0=92 = =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 =D1=81 = =D0=B8=D1=81=D1=82=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=81=D1=80=D0=BE=D0=BA=D0=B0 = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE=20 =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0
 * = =D0=A1=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5 =D1=81=20 =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=B0 =D0=BF=D0=BE = =D1=81=D0=BE=D0=B1=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D0=BC=D1=83 = =D0=B6=D0=B5=D0=BB=D0=B0=D0=BD=D0=B8=D1=8E
* = =D0=A1=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5 =D1=81 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=B0 =D0=B7=D0=B0=20 =D0=BF=D1=80=D0=BE=D0=B3=D1=83=D0=BB
* =D0=A1=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5 = =D1=81 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC=20 =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=B0 = =D0=B7=D0=B0 =D0=BF=D0=BE=D1=8F=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BD=D0=B0 =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B5 =D0=B2 = =D1=81=D0=BE=D1=81=D1=82=D0=BE=D1=8F=D0=BD=D0=B8=D0=B8 = =D0=B0=D0=BB=D0=BA=D0=BE=D0=B3=D0=BE=D0=BB=D1=8C=D0=BD=D0=BE=D0=B3=D0=BE,= =20 = =D0=B8=D0=BB=D0=B8
=D0=BD=D0=B0=D1=80=D0=BA=D0=BE=D1=82=D0=B8=D1=87=D0= =B5=D1=81=D0=BA=D0=BE=D0=B3=D0=BE = =D0=BE=D0=BF=D1=8C=D1=8F=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F
* =D0=92=20 =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 =D1=81 = =D1=80=D0=B0=D1=81=D1=82=D0=BE=D1=80=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=B0 =D0=BF=D0=BE = =D0=BF=D1=80=D0=B8=D1=87=D0=B8=D0=BD=D0=B5 = =D0=BD=D0=B5=D0=BE=D0=B4=D0=BD=D0=BE=D0=BA=D1=80=D0=B0=D1=82=D0=BD=D0=BE=D0= =B3=D0=BE=20 = =D0=BD=D0=B5=D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F<= BR>=D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=BC = =D1=82=D1=80=D1=83=D0=B4=D0=BE=D0=B2=D1=8B=D1=85 = =D0=BE=D0=B1=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0=B5=D0=B9 = (=D0=BF.5 =D1=81=D1=82.81 =D0=A2=D0=9A=20 =D0=A0=D0=A4)
* =D0=92 = =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 =D1=81=20 = =D0=BD=D0=B5=D1=83=D0=B4=D0=BE=D0=B2=D0=BB=D0=B5=D1=82=D0=B2=D0=BE=D1=80=D0= =B8=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D0=BC = =D1=80=D0=B5=D0=B7=D1=83=D0=BB=D1=8C=D1=82=D0=B0=D1=82=D0=BE=D0=BC = =D0=B8=D1=81=D0=BF=D1=8B=D1=82=D0=B0=D0=BD=D0=B8=D1=8F = =D0=BF=D1=80=D0=B8 =D0=BF=D1=80=D0=B8=D0=B5=D0=BC=D0=B5 =D0=BD=D0=B0 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D1=83
* =D0=92 = =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=BF=D0=BE = =D1=81=D0=BE=D0=B3=D0=BB=D0=B0=D1=88=D0=B5=D0=BD=D0=B8=D1=8E=20 =D1=81=D1=82=D0=BE=D1=80=D0=BE=D0=BD
* =D0=92 =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=BF=D0=BE=20 =D1=81=D0=BE=D0=BA=D1=80=D0=B0=D1=89=D0=B5=D0=BD=D0=B8=D1=8E = =D1=88=D1=82=D0=B0=D1=82=D0=B0 =D0=B8 = =D1=87=D0=B8=D1=81=D0=BB=D0=B5=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0=B8 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2
=D0=A2= =D0=9E=D0=9F-10 =D0=BE=D1=88=D0=B8=D0=B1=D0=BE=D0=BA=20 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9 =D0=BF=D1=80=D0=B8 = =D1=83=D0=B2=D0=BE=D0=BB=D1=8C=D0=BD=D0=B5=D0=BD=D0=B8=D0=B8. =
             

- - = -
=D0=A3=D1=87=D0=B0=D1=81=D1=82=D0=B8=D0=B5 =D0=B2 = =D0=B4=D0=B0=D0=BD=D0=BD=D0=BE=D0=BC=20 =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B8 = =D1=81=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D0=B8=D1=82: 11 800 = =D1=80=D1=83=D0=B1.
=D0=9F=D0=BE=D1=81=D0=BB=D0=B5 = =D0=BE=D0=BA=D0=BE=D0=BD=D1=87=D0=B0=D0=BD=D0=B8=D1=8F = =D0=B7=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D1=8F =D0=92=D0=B0=D0=BC = =D0=B2=D1=8B=D0=B4=D0=B0=D0=B5=D1=82=D1=81=D1=8F =D0=BD=D0=B0=D1=88=20 = =D1=81=D0=B5=D1=80=D1=82=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=82.
=D0=92 = =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D0=B5 = =D0=B2=D0=BA=D0=BB=D1=8E=D1=87=D0=B5=D0=BD=D0=BE: = =D0=BC=D0=B5=D1=82=D0=BE=D0=B4=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D0=B9 = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB, = =D0=BE=D0=B1=D0=B5=D0=B4=D1=8B,=20 = =D0=BA=D0=BE=D1=84=D0=B5-=D0=BF=D0=B0=D1=83=D0=B7=D1=8B.
=D0=98=D0=BD=D0= =BE=D0=B3=D0=BE=D1=80=D0=BE=D0=B4=D0=BD=D0=B8=D0=BC = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=BD=D0=B8=D0=BA=D0=B0=D0=BC = =D0=BF=D0=BE=D0=BC=D0=BE=D0=B3=D0=B0=D0=B5=D0=BC =D0=B2 = =D0=B1=D1=80=D0=BE=D0=BD=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B8 = = =D0=B3=D0=BE=D1=81=D1=82=D0=B8=D0=BD=D0=B8=D1=86=D1=8B.

                   
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<= /html> --001a11c200cc8e42cc05239de123-- From jack@suse.cz Tue Nov 3 03:16:18 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 4F0807F59 for ; Tue, 3 Nov 2015 03:16:18 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1D03D304032 for ; Tue, 3 Nov 2015 01:16:14 -0800 (PST) X-ASG-Debug-ID: 1446542169-04bdf0330c1f0650001-NocioJ Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id 490BoDgX2pb8eJ1W (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 03 Nov 2015 01:16:10 -0800 (PST) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id D36CCAC77; Tue, 3 Nov 2015 09:15:50 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id C88488281D; Tue, 3 Nov 2015 10:16:05 +0100 (CET) Date: Tue, 3 Nov 2015 10:16:05 +0100 From: Jan Kara To: Dave Chinner Cc: Brian Foster , ross.zwisler@linux.intel.com, jack@suse.cz, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org, dan.j.williams@intel.com, linux-nvdimm@lists.01.org Subject: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Message-ID: <20151103091605.GA4063@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX References: <1445225238-30413-1-git-send-email-david@fromorbit.com> <1445225238-30413-4-git-send-email-david@fromorbit.com> <20151029142950.GE11663@bfoster.bfoster> <20151029233756.GS19199@dastard> <20151030123657.GC54905@bfoster.bfoster> <20151102011433.GW19199@dastard> <20151102141509.GA29346@bfoster.bfoster> <20151102214424.GJ10656@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151102214424.GJ10656@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mx2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1446542169 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24064 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue 03-11-15 08:44:24, Dave Chinner wrote: > Realistically, dax_clear_blocks() should probably be implemented at > the pmem driver layer through blkdev_issue_zeroout() because all it > does is directly map the sector/len to pfn via bdev_direct_access() > and then zero it - it's a sector based, block device operation. We > don't actually need a special case path for DAX here. Optimisation > of this operation has little to do with the filesystem. Yep. This is actually what I did in ext4 - the block zeroing is using the ext4 block zeroout path which ends up calling blkdev_issue_zeroout(). I didn't want to special-case DAX and figured out that if we want performance, we should implement blkdev_issue_zeroout() efficiently for pmem. After all ext4 uses blkdev_issue_zeroout() in other extent conversion cases where zeroing out is needed. Honza -- Jan Kara SUSE Labs, CR From hoper@free.fr Tue Nov 3 03:49:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id F19087F59 for ; Tue, 3 Nov 2015 03:49:00 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7C185AC002 for ; Tue, 3 Nov 2015 01:49:00 -0800 (PST) X-ASG-Debug-ID: 1446544134-04cbb0660d1eb970001-NocioJ Received: from smtp3-g21.free.fr (smtp3-g21.free.fr [212.27.42.3]) by cuda.sgi.com with ESMTP id XBmoA1FrGIBjmBXY (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 01:48:55 -0800 (PST) X-Barracuda-Envelope-From: hoper@free.fr X-Barracuda-Apparent-Source-IP: 212.27.42.3 Received: from zimbra84-e15.priv.proxad.net (unknown [172.20.243.135]) by smtp3-g21.free.fr (Postfix) with ESMTP id E2737A6694 for ; Tue, 3 Nov 2015 10:48:53 +0100 (CET) Date: Tue, 3 Nov 2015 10:48:53 +0100 (CET) From: hoper@free.fr To: xfs@oss.sgi.com Message-ID: <752500470.262252528.1446544133651.JavaMail.root@zimbra84-e15.priv.proxad.net> In-Reply-To: <436040866.262250269.1446544069841.JavaMail.root@zimbra84-e15.priv.proxad.net> Subject: On-disk data for XFS_DINNODE_FMT_EXTENTS MIME-Version: 1.0 X-ASG-Orig-Subj: On-disk data for XFS_DINNODE_FMT_EXTENTS Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [90.85.16.234] X-Mailer: Zimbra 7.2.0-GA2598 (ZimbraWebClient - FF3.0 (Linux)/7.2.0-GA2598) X-Authenticated-User: hoper@free.fr X-Barracuda-Connect: smtp3-g21.free.fr[212.27.42.3] X-Barracuda-Start-Time: 1446544134 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=NO_REAL_NAME X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24065 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 NO_REAL_NAME From: does not include a real name Hi, I'm trying to understand how xfs is storing informations, but I guess that my documentation "XFS Filesystem Structure 2nd Edition Revision 2" is quite outdated :( I made an XFS filesystem, then made 60 files in /. # xfs_db -f /root/small xfs_db> inode 128 xfs_db> addr current byte offset 32768, length 256 buffer block 64 (fsbno 8), 8 bbs inode 128, dir inode 128, type inode xfs_db> p core.magic = 0x494e core.mode = 040755 core.version = 2 core.format = 2 (extents) [...] next_unlinked = null u.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,12,1,0] I made a small script in python which retrieve all theases information from disk, except the "12" (location of the X2DB block = 12*4096). From the manuel, and my understanding, this information, 12, should be found just next the di_unlinked. (page 43 on the manuel). But from an hex editor, from addr 32768, I got this : 49 4E 41 ED 02 02 00 00 00 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 01 56 37 5D 71 2D 26 3D 0B 56 37 5D 6C 02 78 F1 EC 56 37 5D 6C 02 78 F1 EC 00 00 00 00 00 00 10 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 FF FF FF FF 00 00 00 00 00 00 00 00 00 00 00 00 01 80 00 01 00 00 00 00 00 00 00 00 00 00 00 00 First, 49 4E (IN) that's the begining of the inode core (96 bytes). All informations are here, and match the output of xfs_db. But after next_unlinked (FF FF FF FF here), and until next IN, I can't find any 12 :( Where is it ? Lot's of thanks to anyone that could give me help on this subject. From mw@dermichi.com Tue Nov 3 06:19:07 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A2D4F7F50 for ; Tue, 3 Nov 2015 06:19:07 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 72FAA304043 for ; Tue, 3 Nov 2015 04:19:04 -0800 (PST) X-ASG-Debug-ID: 1446553134-04bdf0330c1f5950001-NocioJ Received: from firestarter.dermichi.com (firestarter.dermichi.com [194.177.153.153]) by cuda.sgi.com with ESMTP id WUnX2wFuSDkH0i6G (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 04:18:55 -0800 (PST) X-Barracuda-Envelope-From: mw@dermichi.com X-Barracuda-Apparent-Source-IP: 194.177.153.153 Received: from noclinksys.net4you.net ([194.177.153.180] helo=[127.0.0.1]) by firestarter.dermichi.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim) (envelope-from ) id 1ZtaY9-0006bx-Ul for xfs@oss.sgi.com; Tue, 03 Nov 2015 13:18:53 +0100 To: xfs@oss.sgi.com From: Michael Weissenbacher Subject: Is it possible to change sunit of log section post-mkfs X-Enigmail-Draft-Status: N1010 X-ASG-Orig-Subj: Is it possible to change sunit of log section post-mkfs Message-ID: <5638A62D.1020802@dermichi.com> Date: Tue, 3 Nov 2015 13:18:53 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: firestarter.dermichi.com[194.177.153.153] X-Barracuda-Start-Time: 1446553135 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24067 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi! I have a XFS file system which lies on a 10-disk RAID-6 device that was created with Chunk Size = 1MiB. On mkfs.xfs time this was - as far as i know - specified with "-d su=1m,sw=8". xfs_info shows the following: meta-data=/dev/sdb1 isize=256 agcount=15, agsize=268435200 blks = sectsz=512 attr=2 data = bsize=4096 blocks=3905945088, imaxpct=5 = sunit=256 swidth=2048 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=521728, version=2 = sectsz=512 sunit=8 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 Interestingly, the sunit value of the log seems to be incorrect - as it should be 256 too, like the sunit value of the data. I am pretty sure the reason is that the log sunit cannot be 256 blks (=1024KiB) and because of this mkfs.xfs did fall back to the default of 8 blks (=32KiB). I found evidence of this in the following thread: http://oss.sgi.com/archives/xfs/2012-06/msg00431.html What i want to achieve is to set the log sunit to the maximum possible of 64 blks (=256KiB). - Is that even possible without doing mkfs.xfs (and losing all data)? - Would it be an improvement performance-wise? - Would changing to an external log help? tia, Michael From bfoster@redhat.com Tue Nov 3 07:02:53 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 04FEA7F55 for ; Tue, 3 Nov 2015 07:02:53 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id E70938F8035 for ; Tue, 3 Nov 2015 05:02:49 -0800 (PST) X-ASG-Debug-ID: 1446555768-04cb6c7b871da180001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id wzFuyrSAdJah751a (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 05:02:49 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 083B442E5A5; Tue, 3 Nov 2015 13:02:48 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-105.bos.redhat.com [10.18.41.105]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3D2lt1018454; Tue, 3 Nov 2015 08:02:47 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id D73E91201AB; Tue, 3 Nov 2015 08:02:46 -0500 (EST) Date: Tue, 3 Nov 2015 08:02:46 -0500 From: Brian Foster To: Michael Weissenbacher Cc: xfs@oss.sgi.com Subject: Re: Is it possible to change sunit of log section post-mkfs Message-ID: <20151103130246.GA24445@bfoster.bfoster> X-ASG-Orig-Subj: Re: Is it possible to change sunit of log section post-mkfs References: <5638A62D.1020802@dermichi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5638A62D.1020802@dermichi.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446555768 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Nov 03, 2015 at 01:18:53PM +0100, Michael Weissenbacher wrote: > Hi! > I have a XFS file system which lies on a 10-disk RAID-6 device that was > created with Chunk Size = 1MiB. > On mkfs.xfs time this was - as far as i know - specified with "-d > su=1m,sw=8". > > xfs_info shows the following: > meta-data=/dev/sdb1 isize=256 agcount=15, > agsize=268435200 blks > = sectsz=512 attr=2 > data = bsize=4096 blocks=3905945088, imaxpct=5 > = sunit=256 swidth=2048 blks > naming =version 2 bsize=4096 ascii-ci=0 > log =internal bsize=4096 blocks=521728, version=2 > = sectsz=512 sunit=8 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > > Interestingly, the sunit value of the log seems to be incorrect - as it > should be 256 too, like the sunit value of the data. I am pretty sure > the reason is that the log sunit cannot be 256 blks (=1024KiB) and > because of this mkfs.xfs did fall back to the default of 8 blks > (=32KiB). I found evidence of this in the following thread: > http://oss.sgi.com/archives/xfs/2012-06/msg00431.html > > What i want to achieve is to set the log sunit to the maximum possible > of 64 blks (=256KiB). > > - Is that even possible without doing mkfs.xfs (and losing all data)? > - Would it be an improvement performance-wise? > - Would changing to an external log help? > I don't believe there's any supported way to do this. Out of curiosity, I just tried an experiment to modify the superblock logsunit via xfs_db and run repair to zero the log. That seemed to work in terms of taking effect on the subsequent mount, but that's certainly not something I would suggest to do in production. Note that mkfs aligns the physical log based on the stripe unit as well, so it wouldn't really have the same effect anyways. Brian > tia, > Michael > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From arnd@arndb.de Tue Nov 3 07:44:13 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7CDE77F56 for ; Tue, 3 Nov 2015 07:44:13 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5A2A1304051 for ; Tue, 3 Nov 2015 05:44:10 -0800 (PST) X-ASG-Debug-ID: 1446558246-04cb6c7b841dafd0001-NocioJ Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.17.10]) by cuda.sgi.com with ESMTP id YIEAh1AN3nFlOAkf (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 05:44:08 -0800 (PST) X-Barracuda-Envelope-From: arnd@arndb.de X-Barracuda-Apparent-Source-IP: 212.227.17.10 Received: from wuerfel.localnet ([134.3.118.24]) by mrelayeu.kundenserver.de (mreue103) with ESMTPSA (Nemesis) id 0Lsw94-1aZqOY2wXK-012b8o; Tue, 03 Nov 2015 14:44:00 +0100 From: Arnd Bergmann To: Dave Chinner Cc: Dave Chinner , Brian Foster , Andreas Gruenbacher , xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH] xfs: only modify ACLs if CONFIG_XFS_POSIX_ACL enabled Date: Tue, 03 Nov 2015 14:43:58 +0100 X-ASG-Orig-Subj: [PATCH] xfs: only modify ACLs if CONFIG_XFS_POSIX_ACL enabled Message-ID: <4425824.kIWhRaBxBZ@wuerfel> User-Agent: KMail/4.11.5 (Linux/3.16.0-10-generic; KDE/4.11.5; x86_64; ; ) MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Provags-ID: V03:K0:IKzBcwP+e4iHMXkRDYjfgGZy7Wb2b2rhVV+Nlg4+C3mqxsbmf4d VPZ7lZ+ow3OFUhHf+KvzdBSqdQfFWgOIHRiROQANfFbhDfvehZObEXKjEZxGe9oC1M3mf+Z /I2gkwGNgoHQiozxyEJMVsaTv1JdN4seA9hr696HRovjGMJoP1n3iby/ys7rNEzwfkkMlg5 yZxOV/tMIEcksBVKUmwhw== X-UI-Out-Filterresults: notjunk:1;V01:K0:tR4k5bxNivo=:eeXM01pztZedAqYJJBiRwB HK8mmPhX9QdPR8RjKeQTsHJktvUPP44ehD7eoqTNDYYIGvXc3+qpnfsmjzN0OWafwqkMviXFw v0d3bKDaH6GBkZtDzW5V0tTX8b0w4qRAuLEcmzJf8z7BEk9kFPNGX9VIBo5m3L6P6j/sFKlLN 2pKK+9T3eKjpZXP5pe4dAUlocx0YBxdrvvgZRXEtypyuQsbDMSnGj70Y498fgkNzl0zee20VL u5hwB5NYkT9dHL+kxOteXw7efsnoZbBA3kyavTr18jp7AdNMjoZedJubiti6GfmFXRzBKZWzS tZkSHiBxNVeixfobttTmyP5U8rRlQp3o497RBdggSSY7Ga2kifJmLhPYTNyBIGHSynLIETmM7 kEAhvyW1xXu5C28URylNJ7jusnlz1mguOT0M27pNxtQC4ok0TB3MV90BqCfM5M7X1RJHbYKRl MhcNLE69Z7/hkdG24uUgqJNFrEX/szxBGr/ruB61AuiCEYUZVY70b7alvZi1gGZdXqRklC35/ Gurr6a83Uyv9ZbLAaZuvYdCTa01ZshwIbhidOaQ6gTJDZGLz+Bvch2gv7rzP75aXc8zHKcKUH gbeQYYxpjgmdSZ6RLhAOfnJYkrj6y+UPRlj4yRY2MWUywsjbYTipqMVq7jozkyYTMNbInUW9Z 0gnc99E2qz3HJ0ApCGXBwWe0f1Jab6beXBn0QbEVG+dfsHInikWR5efWiuF7oZ3YWwUYH51AG 0Jrp9TI2qb70GF3P X-Barracuda-Connect: mout.kundenserver.de[212.227.17.10] X-Barracuda-Start-Time: 1446558247 X-Barracuda-Encrypted: DHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24068 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- A recent bug fix added a call to forget_cached_acl(), but that function is not always available, so we can get a build error here: fs/xfs/xfs_xattr.c: In function 'xfs_xattr_set': fs/xfs/xfs_xattr.c:84:4: error: implicit declaration of function 'forget_cached_acl' [-Werror=implicit-function-declaration] This changes the code to use the same #ifdef that we already use to encapsule the existing ACL handling. Signed-off-by: Arnd Bergmann Fixes: 6caa105651cb ("xfs: invalidate cached acl if set directly via xattr") --- This started breaking ARM davinci_all_defconfig today in linux-next diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c index 2e1eb80d5374..6229325abdd3 100644 --- a/fs/xfs/xfs_xattr.c +++ b/fs/xfs/xfs_xattr.c @@ -73,6 +73,7 @@ xfs_xattr_set(struct dentry *dentry, const char *name, const void *value, return xfs_attr_remove(ip, (unsigned char *)name, xflags); error = xfs_attr_set(ip, (unsigned char *)name, (void *)value, size, xflags); +#ifdef CONFIG_XFS_POSIX_ACL /* * Invalidate any cached ACLs if the user has bypassed the ACL * interface. We don't validate the content whatsoever so it is caller @@ -85,6 +86,7 @@ xfs_xattr_set(struct dentry *dentry, const char *name, const void *value, else if (!strncmp(name, SGI_ACL_DEFAULT, strlen(name))) forget_cached_acl(VFS_I(ip), ACL_TYPE_DEFAULT); } +#endif return error; } From agruenba@redhat.com Tue Nov 3 07:48:06 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5C8747F58 for ; Tue, 3 Nov 2015 07:48:06 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id CC1A5AC002 for ; Tue, 3 Nov 2015 05:48:02 -0800 (PST) X-ASG-Debug-ID: 1446558481-04cb6c7b841db100001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id KROKwXSzHpzNpLph (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 05:48:01 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id EF5CD14CADC; Tue, 3 Nov 2015 13:48:00 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3DlwPV017355; Tue, 3 Nov 2015 08:47:59 -0500 From: Andreas Gruenbacher To: Dave Chinner , xfs@oss.sgi.com Cc: Andreas Gruenbacher Subject: [PATCH] xfs: Fix error path in xfs_get_acl Date: Tue, 3 Nov 2015 14:47:57 +0100 X-ASG-Orig-Subj: [PATCH] xfs: Fix error path in xfs_get_acl Message-Id: <1446558477-21981-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446558481 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Here is another bugfix patch, previously discussed here: http://oss.sgi.com/archives/xfs/2015-10/msg00295.html Thanks, Andreas Error codes from xfs_attr_get other than -ENOATTR were not properly reported. Fix that. In addition, the declaration of struct xfs_inode in xfs_acl.h isn't needed. Signed-off-by: Andreas Gruenbacher --- fs/xfs/xfs_acl.c | 1 + fs/xfs/xfs_acl.h | 1 - 2 files changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c index 763e365..6bb470f 100644 --- a/fs/xfs/xfs_acl.c +++ b/fs/xfs/xfs_acl.c @@ -163,6 +163,7 @@ xfs_get_acl(struct inode *inode, int type) */ if (error == -ENOATTR) goto out_update_cache; + acl = ERR_PTR(error); goto out; } diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h index 75af0a4..52f8255 100644 --- a/fs/xfs/xfs_acl.h +++ b/fs/xfs/xfs_acl.h @@ -20,7 +20,6 @@ struct inode; struct posix_acl; -struct xfs_inode; #ifdef CONFIG_XFS_POSIX_ACL extern struct posix_acl *xfs_get_acl(struct inode *inode, int type); -- 2.5.0 From bfoster@redhat.com Tue Nov 3 07:50:30 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B8BDE7F5A for ; Tue, 3 Nov 2015 07:50:30 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4CFC8AC001 for ; Tue, 3 Nov 2015 05:50:30 -0800 (PST) X-ASG-Debug-ID: 1446558629-04bdf033091fa140001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id EH3FPRiYkdEKsTQh (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 05:50:29 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 1B77A8F4EF; Tue, 3 Nov 2015 13:50:29 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-105.bos.redhat.com [10.18.41.105]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3DoSbD000393; Tue, 3 Nov 2015 08:50:28 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id D2E861201AB; Tue, 3 Nov 2015 08:50:27 -0500 (EST) Date: Tue, 3 Nov 2015 08:50:27 -0500 From: Brian Foster To: hoper@free.fr Cc: xfs@oss.sgi.com Subject: Re: On-disk data for XFS_DINNODE_FMT_EXTENTS Message-ID: <20151103135026.GB24445@bfoster.bfoster> X-ASG-Orig-Subj: Re: On-disk data for XFS_DINNODE_FMT_EXTENTS References: <436040866.262250269.1446544069841.JavaMail.root@zimbra84-e15.priv.proxad.net> <752500470.262252528.1446544133651.JavaMail.root@zimbra84-e15.priv.proxad.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <752500470.262252528.1446544133651.JavaMail.root@zimbra84-e15.priv.proxad.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446558629 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Nov 03, 2015 at 10:48:53AM +0100, hoper@free.fr wrote: > Hi, > > I'm trying to understand how xfs is storing informations, > but I guess that my documentation "XFS Filesystem Structure > 2nd Edition Revision 2" is quite outdated :( > > I made an XFS filesystem, then made 60 files in /. > > # xfs_db -f /root/small > xfs_db> inode 128 > xfs_db> addr > current > byte offset 32768, length 256 > buffer block 64 (fsbno 8), 8 bbs > inode 128, dir inode 128, type inode > xfs_db> p > core.magic = 0x494e > core.mode = 040755 > core.version = 2 > core.format = 2 (extents) > [...] > next_unlinked = null > u.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,12,1,0] > > I made a small script in python which retrieve all theases information from disk, > except the "12" (location of the X2DB block = 12*4096). From the manuel, and my > understanding, this information, 12, should be found just next the di_unlinked. > (page 43 on the manuel). But from an hex editor, from addr 32768, I got this : > > 49 4E 41 ED 02 02 00 00 00 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 01 > 56 37 5D 71 2D 26 3D 0B 56 37 5D 6C 02 78 F1 EC 56 37 5D 6C 02 78 F1 EC 00 00 00 00 00 00 10 00 > 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 > FF FF FF FF 00 00 00 00 00 00 00 00 00 00 00 00 01 80 00 01 00 00 00 00 00 00 00 00 00 00 00 00 > > First, 49 4E (IN) that's the begining of the inode core (96 bytes). All informations are here, > and match the output of xfs_db. But after next_unlinked (FF FF FF FF here), and until next IN, > I can't find any 12 :( Where is it ? > The extent information is encoded in a format that's not easily interpreted from a raw hex dump. See xfs_iformat_extents() to start: dp = (xfs_bmbt_rec_t *) XFS_DFORK_PTR(dip, whichfork); xfs_validate_extents(ifp, nex, XFS_EXTFMT_INODE(ip)); for (i = 0; i < nex; i++, dp++) { xfs_bmbt_rec_host_t *ep = xfs_iext_get_ext(ifp, i); ep->l0 = get_unaligned_be64(&dp->l0); ep->l1 = get_unaligned_be64(&dp->l1); } So we start after di_next_unlinked and read in two 64-bit, big endian fields. That data in your dump above is: l0: 0x0000000000000000 l1: 0x0000000001800001 Then, these 64-bit fields have a special encoding themselves to map to actual extent data. From xfs_format.h: /* * Bmap btree record and extent descriptor. * l0:63 is an extent flag (value 1 indicates non-normal). * l0:9-62 are startoff. * l0:0-8 and l1:21-63 are startblock. * l1:0-20 are blockcount. */ We see that l0 is completely zeroed, so we can infer that this is a normal extent and startoff is zero. The block count is l1:0-20, which is 00001b or 1. The start block is (((l0 & 0x1FF) << 43) | (l1 >> 21)), which is: ((0x0 & 0x1FF) << 43) | (0x1800001 >> 21) 0x0 | 0xC = 0xC == 12 See __xfs_bmbt_get_all() for the code that implements this decoding. Brian > Lot's of thanks to anyone that could give me help on this subject. > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From agruenba@redhat.com Tue Nov 3 09:17:42 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D785B7F5F for ; Tue, 3 Nov 2015 09:17:42 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id C2F36304039 for ; Tue, 3 Nov 2015 07:17:39 -0800 (PST) X-ASG-Debug-ID: 1446563857-04cb6c7b871dda90001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id riErEZ4KOapF7DgB (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:17:38 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 4A0518FAA4; Tue, 3 Nov 2015 15:17:36 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZQ029477; Tue, 3 Nov 2015 10:17:28 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 00/51] Richacls Date: Tue, 3 Nov 2015 16:16:36 +0100 X-ASG-Orig-Subj: [PATCH v13 00/51] Richacls Message-Id: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563858 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Al and all, here is another update of the richacl patch queue. There haven't been any changes or comments on the core patches (patches 1-19) for quite a while, so can those patches please be merged? Changes since the last posting (https://lwn.net/Articles/661934/): * XFS: Access to richacls via the XFS_IOC_ATTRMULTI_BY_HANDLE ioctl has been fixed to work the same way as accessing them via xattrs. (Commit "xfs: Plug memory leak in xfs_attrmulti_attr_set" is queued for mainline, and has been added to here for now to avoid conflicts.) The complete patch queue is available in git form here: git://git.kernel.org/pub/scm/linux/kernel/git/agruen/linux-richacl.git \ richacl-2015-11-03 The richacl user-space utilitites, man pages, and test suite are available here: https://github.com/andreas-gruenbacher/richacl Changes to other user-space packages for richacl are available here: https://github.com/andreas-gruenbacher/coreutils https://github.com/andreas-gruenbacher/e2fsprogs https://github.com/andreas-gruenbacher/xfsprogs-dev https://github.com/andreas-gruenbacher/nfs-utils Please see the richacl homepage for more information: http://www.bestbits.at/richacl/ Thanks, Andreas Andreas Gruenbacher (49): vfs: Add IS_ACL() and IS_RICHACL() tests vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags vfs: Make the inode passed to inode_change_ok non-const vfs: Add permission flags for setting file attributes richacl: In-memory representation and helper functions richacl: Permission mapping functions richacl: Compute maximum file masks from an acl richacl: Permission check algorithm vfs: Cache base_acl objects in inodes vfs: Add get_richacl and set_richacl inode operations vfs: Cache richacl in struct inode richacl: Update the file masks in chmod() richacl: Check if an acl is equivalent to a file mode richacl: Create-time inheritance richacl: Automatic Inheritance richacl: xattr mapping functions richacl: Add richacl xattr handler vfs: Add richacl permission checking xfs: Fix error path in xfs_get_acl xfs: Make xfs_set_mode non-static xfs: Change how listxattr generates synthetic attributes xfs: Add richacl support xfs: Plug memory leak in xfs_attrmulti_attr_set xfs: Fix richacl access by ioctl richacl: acl editing helper functions richacl: Move everyone@ aces down the acl richacl: Propagate everyone@ permissions to other aces richacl: Set the owner permissions to the owner mask richacl: Set the other permissions to the other mask richacl: Isolate the owner and group classes richacl: Apply the file masks to a richacl richacl: Create richacl from mode values nfsd: Keep list of acls to dispose of in compoundargs nfsd: Use richacls as internal acl representation nfsd: Add richacl support nfsd: Add support for the v4.1 dacl attribute nfsd: Add support for the MAY_CREATE_{FILE,DIR} permissions richacl: Add support for unmapped identifiers nfsd: Add support for unmapped richace identifiers ext4: Don't allow unmapped identifiers in richacls xfs: Don't allow unmapped identifiers in richacls sunrpc: Allow to demand-allocate pages to encode into sunrpc: Add xdr_init_encode_pages nfs: Fix GETATTR bitmap verification nfs: Remove unused xdr page offsets in getacl/setacl arguments nfs: Distinguish missing users and groups from nobody nfs: Add richacl support nfs: Add support for the v4.1 dacl attribute Aneesh Kumar K.V (2): ext4: Add richacl support ext4: Add richacl feature flag drivers/staging/lustre/lustre/llite/llite_lib.c | 2 +- fs/Kconfig | 9 + fs/Makefile | 3 + fs/attr.c | 81 ++- fs/ext4/Kconfig | 11 + fs/ext4/Makefile | 1 + fs/ext4/ext4.h | 6 +- fs/ext4/file.c | 3 + fs/ext4/ialloc.c | 11 +- fs/ext4/inode.c | 12 +- fs/ext4/namei.c | 5 + fs/ext4/richacl.c | 145 ++++ fs/ext4/richacl.h | 40 ++ fs/ext4/super.c | 49 +- fs/ext4/xattr.c | 7 + fs/f2fs/acl.c | 4 +- fs/inode.c | 15 +- fs/jffs2/acl.c | 6 +- fs/namei.c | 111 ++- fs/nfs/inode.c | 3 - fs/nfs/nfs4idmap.c | 57 +- fs/nfs/nfs4proc.c | 734 ++++++++++++++----- fs/nfs/nfs4xdr.c | 261 ++++++- fs/nfs/super.c | 4 +- fs/nfs_common/Makefile | 1 + fs/nfs_common/nfs4acl.c | 44 ++ fs/nfsd/Kconfig | 1 + fs/nfsd/acl.h | 23 +- fs/nfsd/nfs4acl.c | 487 +++++++------ fs/nfsd/nfs4proc.c | 25 +- fs/nfsd/nfs4xdr.c | 268 ++++--- fs/nfsd/nfsd.h | 6 +- fs/nfsd/nfsfh.c | 8 +- fs/nfsd/vfs.c | 28 +- fs/nfsd/vfs.h | 17 +- fs/nfsd/xdr4.h | 12 +- fs/posix_acl.c | 26 +- fs/richacl_base.c | 685 ++++++++++++++++++ fs/richacl_compat.c | 915 ++++++++++++++++++++++++ fs/richacl_inode.c | 333 +++++++++ fs/richacl_xattr.c | 345 +++++++++ fs/xattr.c | 34 +- fs/xfs/Kconfig | 1 + fs/xfs/Makefile | 1 + fs/xfs/libxfs/xfs_format.h | 11 +- fs/xfs/xfs_acl.c | 42 +- fs/xfs/xfs_acl.h | 5 - fs/xfs/xfs_inode.c | 24 + fs/xfs/xfs_inode.h | 2 + fs/xfs/xfs_ioctl.c | 32 +- fs/xfs/xfs_iops.c | 44 +- fs/xfs/xfs_richacl.c | 151 ++++ fs/xfs/xfs_richacl.h | 26 + fs/xfs/xfs_super.c | 6 +- fs/xfs/xfs_super.h | 4 + fs/xfs/xfs_xattr.c | 170 ++--- include/linux/fs.h | 51 +- include/linux/nfs4.h | 24 +- include/linux/nfs4acl.h | 7 + include/linux/nfs_fs.h | 1 - include/linux/nfs_fs_sb.h | 3 + include/linux/nfs_xdr.h | 13 +- include/linux/posix_acl.h | 12 +- include/linux/richacl.h | 233 ++++++ include/linux/richacl_compat.h | 40 ++ include/linux/richacl_xattr.h | 44 ++ include/linux/sunrpc/xdr.h | 2 + include/uapi/linux/Kbuild | 2 + include/uapi/linux/fs.h | 3 +- include/uapi/linux/nfs4.h | 3 +- include/uapi/linux/richacl.h | 154 ++++ include/uapi/linux/richacl_xattr.h | 44 ++ include/uapi/linux/xattr.h | 2 + net/sunrpc/xdr.c | 34 + 74 files changed, 5159 insertions(+), 870 deletions(-) create mode 100644 fs/ext4/richacl.c create mode 100644 fs/ext4/richacl.h create mode 100644 fs/nfs_common/nfs4acl.c create mode 100644 fs/richacl_base.c create mode 100644 fs/richacl_compat.c create mode 100644 fs/richacl_inode.c create mode 100644 fs/richacl_xattr.c create mode 100644 fs/xfs/xfs_richacl.c create mode 100644 fs/xfs/xfs_richacl.h create mode 100644 include/linux/nfs4acl.h create mode 100644 include/linux/richacl.h create mode 100644 include/linux/richacl_compat.h create mode 100644 include/linux/richacl_xattr.h create mode 100644 include/uapi/linux/richacl.h create mode 100644 include/uapi/linux/richacl_xattr.h -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:17:49 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E97337F6B for ; Tue, 3 Nov 2015 09:17:48 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6643EAC008 for ; Tue, 3 Nov 2015 07:17:45 -0800 (PST) X-ASG-Debug-ID: 1446563863-04cbb0660d1f7b00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id WilLEcWL5OzCbCSA (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:17:43 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 2641D8535A; Tue, 3 Nov 2015 15:17:43 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZR029477; Tue, 3 Nov 2015 10:17:36 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 01/51] vfs: Add IS_ACL() and IS_RICHACL() tests Date: Tue, 3 Nov 2015 16:16:37 +0100 X-ASG-Orig-Subj: [PATCH v13 01/51] vfs: Add IS_ACL() and IS_RICHACL() tests Message-Id: <1446563847-14005-2-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563863 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The vfs does not apply the umask for file systems that support acls. The test used for this used to be called IS_POSIXACL(). Switch to a new IS_ACL() test to check for either posix acls or richacls instead. Add a new MS_RICHACL flag and IS_RICHACL() test for richacls alone. The IS_POSIXACL() test is still needed by nfsd. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/Kconfig | 3 +++ fs/namei.c | 8 ++++---- include/linux/fs.h | 12 ++++++++++++ include/uapi/linux/fs.h | 3 ++- 4 files changed, 21 insertions(+), 5 deletions(-) diff --git a/fs/Kconfig b/fs/Kconfig index da3f32f..bff2879 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -56,6 +56,9 @@ endif # BLOCK config FS_POSIX_ACL def_bool n +config FS_RICHACL + def_bool n + config EXPORTFS tristate diff --git a/fs/namei.c b/fs/namei.c index 33e9495..224ecf1 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2798,7 +2798,7 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, } mode = op->mode; - if ((open_flag & O_CREAT) && !IS_POSIXACL(dir)) + if ((open_flag & O_CREAT) && !IS_ACL(dir)) mode &= ~current_umask(); excl = (open_flag & (O_EXCL | O_CREAT)) == (O_EXCL | O_CREAT); @@ -2982,7 +2982,7 @@ static int lookup_open(struct nameidata *nd, struct path *path, /* Negative dentry, just create the file */ if (!dentry->d_inode && (op->open_flag & O_CREAT)) { umode_t mode = op->mode; - if (!IS_POSIXACL(dir->d_inode)) + if (!IS_ACL(dir->d_inode)) mode &= ~current_umask(); /* * This write is needed to ensure that a @@ -3553,7 +3553,7 @@ retry: if (IS_ERR(dentry)) return PTR_ERR(dentry); - if (!IS_POSIXACL(path.dentry->d_inode)) + if (!IS_ACL(path.dentry->d_inode)) mode &= ~current_umask(); error = security_path_mknod(&path, dentry, mode, dev); if (error) @@ -3622,7 +3622,7 @@ retry: if (IS_ERR(dentry)) return PTR_ERR(dentry); - if (!IS_POSIXACL(path.dentry->d_inode)) + if (!IS_ACL(path.dentry->d_inode)) mode &= ~current_umask(); error = security_path_mkdir(&path, dentry, mode); if (!error) diff --git a/include/linux/fs.h b/include/linux/fs.h index 72d8a84..4efa435 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1781,6 +1781,12 @@ struct super_operations { #define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE) #define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL) +#ifdef CONFIG_FS_RICHACL +#define IS_RICHACL(inode) __IS_FLG(inode, MS_RICHACL) +#else +#define IS_RICHACL(inode) 0 +#endif + #define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD) #define IS_NOCMTIME(inode) ((inode)->i_flags & S_NOCMTIME) #define IS_SWAPFILE(inode) ((inode)->i_flags & S_SWAPFILE) @@ -1794,6 +1800,12 @@ struct super_operations { (inode)->i_rdev == WHITEOUT_DEV) /* + * IS_ACL() tells the VFS to not apply the umask + * and use check_acl for acl permission checks when defined. + */ +#define IS_ACL(inode) __IS_FLG(inode, MS_POSIXACL | MS_RICHACL) + +/* * Inode state bits. Protected by inode->i_lock * * Three bits determine the dirty state of the inode, I_DIRTY_SYNC, diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index 9b964a5..6ac6bc9 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -81,7 +81,7 @@ struct inodes_stat_t { #define MS_VERBOSE 32768 /* War is peace. Verbosity is silence. MS_VERBOSE is deprecated. */ #define MS_SILENT 32768 -#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */ +#define MS_POSIXACL (1<<16) /* Supports POSIX ACLs */ #define MS_UNBINDABLE (1<<17) /* change to unbindable */ #define MS_PRIVATE (1<<18) /* change to private */ #define MS_SLAVE (1<<19) /* change to slave */ @@ -91,6 +91,7 @@ struct inodes_stat_t { #define MS_I_VERSION (1<<23) /* Update inode I_version field */ #define MS_STRICTATIME (1<<24) /* Always perform atime updates */ #define MS_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */ +#define MS_RICHACL (1<<26) /* Supports richacls */ /* These sb flags are internal to the kernel */ #define MS_NOSEC (1<<28) -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:17:52 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 386FC7F6F for ; Tue, 3 Nov 2015 09:17:52 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 06100304053 for ; Tue, 3 Nov 2015 07:17:52 -0800 (PST) X-ASG-Debug-ID: 1446563870-04bdf0330a1fc860001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id dEMoKAIlLATKHF2N (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:17:50 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 30BEFC0D61A1; Tue, 3 Nov 2015 15:17:50 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZS029477; Tue, 3 Nov 2015 10:17:43 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 02/51] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Date: Tue, 3 Nov 2015 16:16:38 +0100 X-ASG-Orig-Subj: [PATCH v13 02/51] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Message-Id: <1446563847-14005-3-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563870 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Richacls distinguish between creating non-directories and directories. To support that, add an isdir parameter to may_create(). When checking inode_permission() for create permission, pass in an additional MAY_CREATE_FILE or MAY_CREATE_DIR mask flag. To allow checking for delete *and* create access when replacing an existing file via vfs_rename(), add a replace parameter to may_delete(). Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/namei.c | 43 +++++++++++++++++++++++++------------------ include/linux/fs.h | 2 ++ 2 files changed, 27 insertions(+), 18 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 224ecf1..0259392 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -453,7 +453,9 @@ static int sb_permission(struct super_block *sb, struct inode *inode, int mask) * this, letting us set arbitrary permissions for filesystem access without * changing the "normal" UIDs which are used for other things. * - * When checking for MAY_APPEND, MAY_WRITE must also be set in @mask. + * MAY_WRITE must be set in @mask whenever MAY_APPEND, MAY_CREATE_FILE, or + * MAY_CREATE_DIR are set. That way, file systems that don't support these + * permissions will check for MAY_WRITE instead. */ int inode_permission(struct inode *inode, int mask) { @@ -2549,10 +2551,11 @@ EXPORT_SYMBOL(__check_sticky); * 10. We don't allow removal of NFS sillyrenamed files; it's handled by * nfs_async_unlink(). */ -static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) +static int may_delete(struct inode *dir, struct dentry *victim, + bool isdir, bool replace) { struct inode *inode = d_backing_inode(victim); - int error; + int error, mask = MAY_WRITE | MAY_EXEC; if (d_is_negative(victim)) return -ENOENT; @@ -2561,7 +2564,9 @@ static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) BUG_ON(victim->d_parent->d_inode != dir); audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); - error = inode_permission(dir, MAY_WRITE | MAY_EXEC); + if (replace) + mask |= isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; + error = inode_permission(dir, mask); if (error) return error; if (IS_APPEND(dir)) @@ -2592,14 +2597,16 @@ static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) * 3. We should have write and exec permissions on dir * 4. We can't do it if dir is immutable (done in permission()) */ -static inline int may_create(struct inode *dir, struct dentry *child) +static inline int may_create(struct inode *dir, struct dentry *child, bool isdir) { + int mask = isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; + audit_inode_child(dir, child, AUDIT_TYPE_CHILD_CREATE); if (child->d_inode) return -EEXIST; if (IS_DEADDIR(dir)) return -ENOENT; - return inode_permission(dir, MAY_WRITE | MAY_EXEC); + return inode_permission(dir, MAY_WRITE | MAY_EXEC | mask); } /* @@ -2649,7 +2656,7 @@ EXPORT_SYMBOL(unlock_rename); int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool want_excl) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; @@ -3494,7 +3501,7 @@ EXPORT_SYMBOL(user_path_create); int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; @@ -3586,7 +3593,7 @@ SYSCALL_DEFINE3(mknod, const char __user *, filename, umode_t, mode, unsigned, d int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, true); unsigned max_links = dir->i_sb->s_max_links; if (error) @@ -3667,7 +3674,7 @@ EXPORT_SYMBOL(dentry_unhash); int vfs_rmdir(struct inode *dir, struct dentry *dentry) { - int error = may_delete(dir, dentry, 1); + int error = may_delete(dir, dentry, true, false); if (error) return error; @@ -3789,7 +3796,7 @@ SYSCALL_DEFINE1(rmdir, const char __user *, pathname) int vfs_unlink(struct inode *dir, struct dentry *dentry, struct inode **delegated_inode) { struct inode *target = dentry->d_inode; - int error = may_delete(dir, dentry, 0); + int error = may_delete(dir, dentry, false, false); if (error) return error; @@ -3923,7 +3930,7 @@ SYSCALL_DEFINE1(unlink, const char __user *, pathname) int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; @@ -4006,7 +4013,7 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de if (!inode) return -ENOENT; - error = may_create(dir, new_dentry); + error = may_create(dir, new_dentry, false); if (error) return error; @@ -4194,19 +4201,19 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry, if (source == target) return 0; - error = may_delete(old_dir, old_dentry, is_dir); + error = may_delete(old_dir, old_dentry, is_dir, false); if (error) return error; if (!target) { - error = may_create(new_dir, new_dentry); + error = may_create(new_dir, new_dentry, is_dir); } else { new_is_dir = d_is_dir(new_dentry); if (!(flags & RENAME_EXCHANGE)) - error = may_delete(new_dir, new_dentry, is_dir); + error = may_delete(new_dir, new_dentry, is_dir, true); else - error = may_delete(new_dir, new_dentry, new_is_dir); + error = may_delete(new_dir, new_dentry, new_is_dir, true); } if (error) return error; @@ -4469,7 +4476,7 @@ SYSCALL_DEFINE2(rename, const char __user *, oldname, const char __user *, newna int vfs_whiteout(struct inode *dir, struct dentry *dentry) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; diff --git a/include/linux/fs.h b/include/linux/fs.h index 4efa435..d6e2330 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -82,6 +82,8 @@ typedef void (dax_iodone_t)(struct buffer_head *bh_map, int uptodate); #define MAY_CHDIR 0x00000040 /* called from RCU mode, don't block */ #define MAY_NOT_BLOCK 0x00000080 +#define MAY_CREATE_FILE 0x00000100 +#define MAY_CREATE_DIR 0x00000200 /* * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:18:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id ACAF77F6F for ; Tue, 3 Nov 2015 09:18:01 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6AB628F8035 for ; Tue, 3 Nov 2015 07:17:58 -0800 (PST) X-ASG-Debug-ID: 1446563877-04bdf033091fc880001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id C4TE26lCBXBEMA8h (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:17:57 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id EE90EC100444; Tue, 3 Nov 2015 15:17:56 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZT029477; Tue, 3 Nov 2015 10:17:50 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 03/51] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags Date: Tue, 3 Nov 2015 16:16:39 +0100 X-ASG-Orig-Subj: [PATCH v13 03/51] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags Message-Id: <1446563847-14005-4-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563877 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Normally, deleting a file requires MAY_WRITE access to the parent directory. With richacls, a file may be deleted with MAY_DELETE_CHILD access to the parent directory or with MAY_DELETE_SELF access to the file. To support that, pass the MAY_DELETE_CHILD mask flag to inode_permission() when checking for delete access inside a directory, and MAY_DELETE_SELF when checking for delete access to a file itelf. The MAY_DELETE_SELF permission overrides the sticky directory check. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/namei.c | 21 ++++++++++++--------- include/linux/fs.h | 2 ++ 2 files changed, 14 insertions(+), 9 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 0259392..2eab19e 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -453,9 +453,9 @@ static int sb_permission(struct super_block *sb, struct inode *inode, int mask) * this, letting us set arbitrary permissions for filesystem access without * changing the "normal" UIDs which are used for other things. * - * MAY_WRITE must be set in @mask whenever MAY_APPEND, MAY_CREATE_FILE, or - * MAY_CREATE_DIR are set. That way, file systems that don't support these - * permissions will check for MAY_WRITE instead. + * MAY_WRITE must be set in @mask whenever MAY_APPEND, MAY_CREATE_FILE, + * MAY_CREATE_DIR, or MAY_DELETE_CHILD are set. That way, file systems that + * don't support these permissions will check for MAY_WRITE instead. */ int inode_permission(struct inode *inode, int mask) { @@ -2555,7 +2555,7 @@ static int may_delete(struct inode *dir, struct dentry *victim, bool isdir, bool replace) { struct inode *inode = d_backing_inode(victim); - int error, mask = MAY_WRITE | MAY_EXEC; + int error, mask = MAY_EXEC; if (d_is_negative(victim)) return -ENOENT; @@ -2565,15 +2565,18 @@ static int may_delete(struct inode *dir, struct dentry *victim, audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); if (replace) - mask |= isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; - error = inode_permission(dir, mask); + mask |= MAY_WRITE | (isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE); + error = inode_permission(dir, mask | MAY_WRITE | MAY_DELETE_CHILD); + if (!error && check_sticky(dir, inode)) + error = -EPERM; + if (error && IS_RICHACL(inode) && + inode_permission(inode, MAY_DELETE_SELF) == 0) + error = 0; if (error) return error; if (IS_APPEND(dir)) return -EPERM; - - if (check_sticky(dir, inode) || IS_APPEND(inode) || - IS_IMMUTABLE(inode) || IS_SWAPFILE(inode)) + if (IS_APPEND(inode) || IS_IMMUTABLE(inode) || IS_SWAPFILE(inode)) return -EPERM; if (isdir) { if (!d_is_dir(victim)) diff --git a/include/linux/fs.h b/include/linux/fs.h index d6e2330..402acd7 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -84,6 +84,8 @@ typedef void (dax_iodone_t)(struct buffer_head *bh_map, int uptodate); #define MAY_NOT_BLOCK 0x00000080 #define MAY_CREATE_FILE 0x00000100 #define MAY_CREATE_DIR 0x00000200 +#define MAY_DELETE_CHILD 0x00000400 +#define MAY_DELETE_SELF 0x00000800 /* * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:18:05 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 938BC29DFE for ; Tue, 3 Nov 2015 09:18:05 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 72EFA8F8033 for ; Tue, 3 Nov 2015 07:18:05 -0800 (PST) X-ASG-Debug-ID: 1446563884-04cb6c7b871ddad0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id zTj9fALV573rXpUU (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:18:04 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id D32C5A4507; Tue, 3 Nov 2015 15:18:03 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZU029477; Tue, 3 Nov 2015 10:17:57 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 04/51] vfs: Make the inode passed to inode_change_ok non-const Date: Tue, 3 Nov 2015 16:16:40 +0100 X-ASG-Orig-Subj: [PATCH v13 04/51] vfs: Make the inode passed to inode_change_ok non-const Message-Id: <1446563847-14005-5-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563884 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 We will need to call iop->permission and iop->get_acl from inode_change_ok() for additional permission checks, and both take a non-const inode. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/attr.c | 2 +- include/linux/fs.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/attr.c b/fs/attr.c index 6530ced..328be71 100644 --- a/fs/attr.c +++ b/fs/attr.c @@ -28,7 +28,7 @@ * Should be called as the first thing in ->setattr implementations, * possibly after taking additional locks. */ -int inode_change_ok(const struct inode *inode, struct iattr *attr) +int inode_change_ok(struct inode *inode, struct iattr *attr) { unsigned int ia_valid = attr->ia_valid; diff --git a/include/linux/fs.h b/include/linux/fs.h index 402acd7..aab32c8 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2871,7 +2871,7 @@ extern int buffer_migrate_page(struct address_space *, #define buffer_migrate_page NULL #endif -extern int inode_change_ok(const struct inode *, struct iattr *); +extern int inode_change_ok(struct inode *, struct iattr *); extern int inode_newsize_ok(const struct inode *, loff_t offset); extern void setattr_copy(struct inode *inode, const struct iattr *attr); -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:18:12 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B0AFD29DFE for ; Tue, 3 Nov 2015 09:18:12 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4C57FAC016 for ; Tue, 3 Nov 2015 07:18:12 -0800 (PST) X-ASG-Debug-ID: 1446563891-04bdf033091fc8d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 3dIsTMuGNzdJFFrj (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:18:11 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id BE17E4F638; Tue, 3 Nov 2015 15:18:10 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZV029477; Tue, 3 Nov 2015 10:18:04 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 05/51] vfs: Add permission flags for setting file attributes Date: Tue, 3 Nov 2015 16:16:41 +0100 X-ASG-Orig-Subj: [PATCH v13 05/51] vfs: Add permission flags for setting file attributes Message-Id: <1446563847-14005-6-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563891 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Richacls support permissions that allow to take ownership of a file, change the file permissions, and set the file timestamps. Support that by introducing new permission mask flags and by checking for those mask flags in inode_change_ok(). Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/attr.c | 79 +++++++++++++++++++++++++++++++++++++++++++++--------- include/linux/fs.h | 3 +++ 2 files changed, 70 insertions(+), 12 deletions(-) diff --git a/fs/attr.c b/fs/attr.c index 328be71..85483e0 100644 --- a/fs/attr.c +++ b/fs/attr.c @@ -17,6 +17,65 @@ #include /** + * inode_extended_permission - permissions beyond read/write/execute + * + * Check for permissions that only richacls can currently grant. + */ +static int inode_extended_permission(struct inode *inode, int mask) +{ + if (!IS_RICHACL(inode)) + return -EPERM; + return inode_permission(inode, mask); +} + +static bool inode_uid_change_ok(struct inode *inode, kuid_t ia_uid) +{ + if (uid_eq(current_fsuid(), inode->i_uid) && + uid_eq(ia_uid, inode->i_uid)) + return true; + if (uid_eq(current_fsuid(), ia_uid) && + inode_extended_permission(inode, MAY_TAKE_OWNERSHIP) == 0) + return true; + if (capable_wrt_inode_uidgid(inode, CAP_CHOWN)) + return true; + return false; +} + +static bool inode_gid_change_ok(struct inode *inode, kgid_t ia_gid) +{ + int in_group = in_group_p(ia_gid); + if (uid_eq(current_fsuid(), inode->i_uid) && + (in_group || gid_eq(ia_gid, inode->i_gid))) + return true; + if (in_group && inode_extended_permission(inode, MAY_TAKE_OWNERSHIP) == 0) + return true; + if (capable_wrt_inode_uidgid(inode, CAP_CHOWN)) + return true; + return false; +} + +/** + * inode_owner_permitted_or_capable + * + * Check for permissions implicitly granted to the owner, like MAY_CHMOD or + * MAY_SET_TIMES. Equivalent to inode_owner_or_capable for file systems + * without support for those permissions. + */ +static bool inode_owner_permitted_or_capable(struct inode *inode, int mask) +{ + struct user_namespace *ns; + + if (uid_eq(current_fsuid(), inode->i_uid)) + return true; + if (inode_extended_permission(inode, mask) == 0) + return true; + ns = current_user_ns(); + if (ns_capable(ns, CAP_FOWNER) && kuid_has_mapping(ns, inode->i_uid)) + return true; + return false; +} + +/** * inode_change_ok - check if attribute changes to an inode are allowed * @inode: inode to check * @attr: attributes to change @@ -47,22 +106,18 @@ int inode_change_ok(struct inode *inode, struct iattr *attr) return 0; /* Make sure a caller can chown. */ - if ((ia_valid & ATTR_UID) && - (!uid_eq(current_fsuid(), inode->i_uid) || - !uid_eq(attr->ia_uid, inode->i_uid)) && - !capable_wrt_inode_uidgid(inode, CAP_CHOWN)) - return -EPERM; + if (ia_valid & ATTR_UID) + if (!inode_uid_change_ok(inode, attr->ia_uid)) + return -EPERM; /* Make sure caller can chgrp. */ - if ((ia_valid & ATTR_GID) && - (!uid_eq(current_fsuid(), inode->i_uid) || - (!in_group_p(attr->ia_gid) && !gid_eq(attr->ia_gid, inode->i_gid))) && - !capable_wrt_inode_uidgid(inode, CAP_CHOWN)) - return -EPERM; + if (ia_valid & ATTR_GID) + if (!inode_gid_change_ok(inode, attr->ia_gid)) + return -EPERM; /* Make sure a caller can chmod. */ if (ia_valid & ATTR_MODE) { - if (!inode_owner_or_capable(inode)) + if (!inode_owner_permitted_or_capable(inode, MAY_CHMOD)) return -EPERM; /* Also check the setgid bit! */ if (!in_group_p((ia_valid & ATTR_GID) ? attr->ia_gid : @@ -73,7 +128,7 @@ int inode_change_ok(struct inode *inode, struct iattr *attr) /* Check for setting the inode time. */ if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)) { - if (!inode_owner_or_capable(inode)) + if (!inode_owner_permitted_or_capable(inode, MAY_SET_TIMES)) return -EPERM; } diff --git a/include/linux/fs.h b/include/linux/fs.h index aab32c8..ba91a89 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -86,6 +86,9 @@ typedef void (dax_iodone_t)(struct buffer_head *bh_map, int uptodate); #define MAY_CREATE_DIR 0x00000200 #define MAY_DELETE_CHILD 0x00000400 #define MAY_DELETE_SELF 0x00000800 +#define MAY_TAKE_OWNERSHIP 0x00001000 +#define MAY_CHMOD 0x00002000 +#define MAY_SET_TIMES 0x00004000 /* * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:18:20 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3AA3629DF9 for ; Tue, 3 Nov 2015 09:18:20 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id E0DE3304043 for ; Tue, 3 Nov 2015 07:18:19 -0800 (PST) X-ASG-Debug-ID: 1446563897-04bdf033091fc8f0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ystrGk7ZVjUhAfD2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:18:17 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id A3B19C0D61B9; Tue, 3 Nov 2015 15:18:17 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZW029477; Tue, 3 Nov 2015 10:18:11 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 06/51] richacl: In-memory representation and helper functions Date: Tue, 3 Nov 2015 16:16:42 +0100 X-ASG-Orig-Subj: [PATCH v13 06/51] richacl: In-memory representation and helper functions Message-Id: <1446563847-14005-7-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563897 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 A richacl consists of an NFSv4 acl and an owner, group, and other mask. These three masks correspond to the owner, group, and other file permission bits, but they contain NFSv4 permissions instead of POSIX permissions. Each entry in the NFSv4 acl applies to the file owner (OWNER@), the owning group (GROUP@), everyone (EVERYONE@), or to a specific uid or gid. As in the standard POSIX file permission model, each process is the owner, group, or other file class. A richacl grants a requested access only if the NFSv4 acl in the richacl grants the access (according to the NFSv4 permission check algorithm), and the file mask that applies to the process includes the requested permissions. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/Makefile | 2 + fs/richacl_base.c | 67 ++++++++++++++++ include/linux/richacl.h | 179 +++++++++++++++++++++++++++++++++++++++++++ include/uapi/linux/Kbuild | 1 + include/uapi/linux/richacl.h | 99 ++++++++++++++++++++++++ 5 files changed, 348 insertions(+) create mode 100644 fs/richacl_base.c create mode 100644 include/linux/richacl.h create mode 100644 include/uapi/linux/richacl.h diff --git a/fs/Makefile b/fs/Makefile index f79cf40..fe3e9dd 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -48,6 +48,8 @@ obj-$(CONFIG_COREDUMP) += coredump.o obj-$(CONFIG_SYSCTL) += drop_caches.o obj-$(CONFIG_FHANDLE) += fhandle.o +obj-$(CONFIG_FS_RICHACL) += richacl.o +richacl-y := richacl_base.o obj-y += quota/ diff --git a/fs/richacl_base.c b/fs/richacl_base.c new file mode 100644 index 0000000..c3ec928 --- /dev/null +++ b/fs/richacl_base.c @@ -0,0 +1,67 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include + +MODULE_LICENSE("GPL"); + +/** + * richacl_alloc - allocate a richacl + * @count: number of entries + */ +struct richacl * +richacl_alloc(int count, gfp_t gfp) +{ + size_t size = sizeof(struct richacl) + count * sizeof(struct richace); + struct richacl *acl = kzalloc(size, gfp); + + if (acl) { + atomic_set(&acl->a_refcount, 1); + acl->a_count = count; + } + return acl; +} +EXPORT_SYMBOL_GPL(richacl_alloc); + +/** + * richacl_clone - create a copy of a richacl + */ +struct richacl * +richacl_clone(const struct richacl *acl, gfp_t gfp) +{ + int count = acl->a_count; + size_t size = sizeof(struct richacl) + count * sizeof(struct richace); + struct richacl *dup = kmalloc(size, gfp); + + if (dup) { + memcpy(dup, acl, size); + atomic_set(&dup->a_refcount, 1); + } + return dup; +} + +/** + * richace_copy - copy an acl entry + */ +void +richace_copy(struct richace *to, const struct richace *from) +{ + memcpy(to, from, sizeof(struct richace)); +} diff --git a/include/linux/richacl.h b/include/linux/richacl.h new file mode 100644 index 0000000..edb8480 --- /dev/null +++ b/include/linux/richacl.h @@ -0,0 +1,179 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#ifndef __RICHACL_H +#define __RICHACL_H + +#include + +struct richace { + unsigned short e_type; + unsigned short e_flags; + unsigned int e_mask; + union { + kuid_t uid; + kgid_t gid; + unsigned int special; + } e_id; +}; + +struct richacl { + atomic_t a_refcount; + unsigned int a_owner_mask; + unsigned int a_group_mask; + unsigned int a_other_mask; + unsigned short a_count; + unsigned short a_flags; + struct richace a_entries[0]; +}; + +#define richacl_for_each_entry(_ace, _acl) \ + for (_ace = (_acl)->a_entries; \ + _ace != (_acl)->a_entries + (_acl)->a_count; \ + _ace++) + +#define richacl_for_each_entry_reverse(_ace, _acl) \ + for (_ace = (_acl)->a_entries + (_acl)->a_count - 1; \ + _ace != (_acl)->a_entries - 1; \ + _ace--) + +/** + * richacl_get - grab another reference to a richacl handle + */ +static inline struct richacl * +richacl_get(struct richacl *acl) +{ + if (acl) + atomic_inc(&acl->a_refcount); + return acl; +} + +/** + * richacl_put - free a richacl handle + */ +static inline void +richacl_put(struct richacl *acl) +{ + if (acl && atomic_dec_and_test(&acl->a_refcount)) + kfree(acl); +} + +/** + * richace_is_owner - check if @ace is an OWNER@ entry + */ +static inline bool +richace_is_owner(const struct richace *ace) +{ + return (ace->e_flags & RICHACE_SPECIAL_WHO) && + ace->e_id.special == RICHACE_OWNER_SPECIAL_ID; +} + +/** + * richace_is_group - check if @ace is a GROUP@ entry + */ +static inline bool +richace_is_group(const struct richace *ace) +{ + return (ace->e_flags & RICHACE_SPECIAL_WHO) && + ace->e_id.special == RICHACE_GROUP_SPECIAL_ID; +} + +/** + * richace_is_everyone - check if @ace is an EVERYONE@ entry + */ +static inline bool +richace_is_everyone(const struct richace *ace) +{ + return (ace->e_flags & RICHACE_SPECIAL_WHO) && + ace->e_id.special == RICHACE_EVERYONE_SPECIAL_ID; +} + +/** + * richace_is_unix_user - check if @ace applies to a specific user + */ +static inline bool +richace_is_unix_user(const struct richace *ace) +{ + return !(ace->e_flags & RICHACE_SPECIAL_WHO) && + !(ace->e_flags & RICHACE_IDENTIFIER_GROUP); +} + +/** + * richace_is_unix_group - check if @ace applies to a specific group + */ +static inline bool +richace_is_unix_group(const struct richace *ace) +{ + return !(ace->e_flags & RICHACE_SPECIAL_WHO) && + (ace->e_flags & RICHACE_IDENTIFIER_GROUP); +} + +/** + * richace_is_inherit_only - check if @ace is for inheritance only + * + * ACEs with the %RICHACE_INHERIT_ONLY_ACE flag set have no effect during + * permission checking. + */ +static inline bool +richace_is_inherit_only(const struct richace *ace) +{ + return ace->e_flags & RICHACE_INHERIT_ONLY_ACE; +} + +/** + * richace_is_inheritable - check if @ace is inheritable + */ +static inline bool +richace_is_inheritable(const struct richace *ace) +{ + return ace->e_flags & (RICHACE_FILE_INHERIT_ACE | + RICHACE_DIRECTORY_INHERIT_ACE); +} + +/** + * richace_is_allow - check if @ace is an %ALLOW type entry + */ +static inline bool +richace_is_allow(const struct richace *ace) +{ + return ace->e_type == RICHACE_ACCESS_ALLOWED_ACE_TYPE; +} + +/** + * richace_is_deny - check if @ace is a %DENY type entry + */ +static inline bool +richace_is_deny(const struct richace *ace) +{ + return ace->e_type == RICHACE_ACCESS_DENIED_ACE_TYPE; +} + +/** + * richace_is_same_identifier - are both identifiers the same? + */ +static inline bool +richace_is_same_identifier(const struct richace *a, const struct richace *b) +{ + return !((a->e_flags ^ b->e_flags) & + (RICHACE_SPECIAL_WHO | RICHACE_IDENTIFIER_GROUP)) && + !memcmp(&a->e_id, &b->e_id, sizeof(a->e_id)); +} + +extern struct richacl *richacl_alloc(int, gfp_t); +extern struct richacl *richacl_clone(const struct richacl *, gfp_t); +extern void richace_copy(struct richace *, const struct richace *); + +#endif /* __RICHACL_H */ diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild index f7b2db4..8c82010 100644 --- a/include/uapi/linux/Kbuild +++ b/include/uapi/linux/Kbuild @@ -348,6 +348,7 @@ header-y += reboot.h header-y += reiserfs_fs.h header-y += reiserfs_xattr.h header-y += resource.h +header-y += richacl.h header-y += rfkill.h header-y += romfs_fs.h header-y += rose.h diff --git a/include/uapi/linux/richacl.h b/include/uapi/linux/richacl.h new file mode 100644 index 0000000..08856f8 --- /dev/null +++ b/include/uapi/linux/richacl.h @@ -0,0 +1,99 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + */ + +#ifndef __UAPI_RICHACL_H +#define __UAPI_RICHACL_H + +/* a_flags values */ +#define RICHACL_WRITE_THROUGH 0x40 +#define RICHACL_MASKED 0x80 + +/* e_type values */ +#define RICHACE_ACCESS_ALLOWED_ACE_TYPE 0x0000 +#define RICHACE_ACCESS_DENIED_ACE_TYPE 0x0001 + +/* e_flags bitflags */ +#define RICHACE_FILE_INHERIT_ACE 0x0001 +#define RICHACE_DIRECTORY_INHERIT_ACE 0x0002 +#define RICHACE_NO_PROPAGATE_INHERIT_ACE 0x0004 +#define RICHACE_INHERIT_ONLY_ACE 0x0008 +#define RICHACE_IDENTIFIER_GROUP 0x0040 +#define RICHACE_SPECIAL_WHO 0x4000 + +/* e_mask bitflags */ +#define RICHACE_READ_DATA 0x00000001 +#define RICHACE_LIST_DIRECTORY 0x00000001 +#define RICHACE_WRITE_DATA 0x00000002 +#define RICHACE_ADD_FILE 0x00000002 +#define RICHACE_APPEND_DATA 0x00000004 +#define RICHACE_ADD_SUBDIRECTORY 0x00000004 +#define RICHACE_READ_NAMED_ATTRS 0x00000008 +#define RICHACE_WRITE_NAMED_ATTRS 0x00000010 +#define RICHACE_EXECUTE 0x00000020 +#define RICHACE_DELETE_CHILD 0x00000040 +#define RICHACE_READ_ATTRIBUTES 0x00000080 +#define RICHACE_WRITE_ATTRIBUTES 0x00000100 +#define RICHACE_WRITE_RETENTION 0x00000200 +#define RICHACE_WRITE_RETENTION_HOLD 0x00000400 +#define RICHACE_DELETE 0x00010000 +#define RICHACE_READ_ACL 0x00020000 +#define RICHACE_WRITE_ACL 0x00040000 +#define RICHACE_WRITE_OWNER 0x00080000 +#define RICHACE_SYNCHRONIZE 0x00100000 + +/* e_id values */ +#define RICHACE_OWNER_SPECIAL_ID 0 +#define RICHACE_GROUP_SPECIAL_ID 1 +#define RICHACE_EVERYONE_SPECIAL_ID 2 + +#define RICHACL_VALID_FLAGS ( \ + RICHACL_WRITE_THROUGH | \ + RICHACL_MASKED ) + +#define RICHACE_VALID_FLAGS ( \ + RICHACE_FILE_INHERIT_ACE | \ + RICHACE_DIRECTORY_INHERIT_ACE | \ + RICHACE_NO_PROPAGATE_INHERIT_ACE | \ + RICHACE_INHERIT_ONLY_ACE | \ + RICHACE_IDENTIFIER_GROUP | \ + RICHACE_SPECIAL_WHO ) + +#define RICHACE_INHERITANCE_FLAGS ( \ + RICHACE_FILE_INHERIT_ACE | \ + RICHACE_DIRECTORY_INHERIT_ACE | \ + RICHACE_NO_PROPAGATE_INHERIT_ACE | \ + RICHACE_INHERIT_ONLY_ACE ) + +/* Valid RICHACE_* flags for directories and non-directories */ +#define RICHACE_VALID_MASK ( \ + RICHACE_READ_DATA | RICHACE_LIST_DIRECTORY | \ + RICHACE_WRITE_DATA | RICHACE_ADD_FILE | \ + RICHACE_APPEND_DATA | RICHACE_ADD_SUBDIRECTORY | \ + RICHACE_READ_NAMED_ATTRS | \ + RICHACE_WRITE_NAMED_ATTRS | \ + RICHACE_EXECUTE | \ + RICHACE_DELETE_CHILD | \ + RICHACE_READ_ATTRIBUTES | \ + RICHACE_WRITE_ATTRIBUTES | \ + RICHACE_WRITE_RETENTION | \ + RICHACE_WRITE_RETENTION_HOLD | \ + RICHACE_DELETE | \ + RICHACE_READ_ACL | \ + RICHACE_WRITE_ACL | \ + RICHACE_WRITE_OWNER | \ + RICHACE_SYNCHRONIZE ) + +#endif /* __UAPI_RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:18:26 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C377029DF9 for ; Tue, 3 Nov 2015 09:18:26 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9022B8F8035 for ; Tue, 3 Nov 2015 07:18:26 -0800 (PST) X-ASG-Debug-ID: 1446563904-04bdf0330b1fc920001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id DENNLT6AJMQL6Fx1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:18:24 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 8D791C0D61BC; Tue, 3 Nov 2015 15:18:24 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZX029477; Tue, 3 Nov 2015 10:18:18 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 07/51] richacl: Permission mapping functions Date: Tue, 3 Nov 2015 16:16:43 +0100 X-ASG-Orig-Subj: [PATCH v13 07/51] richacl: Permission mapping functions Message-Id: <1446563847-14005-8-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563904 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 We need to map from POSIX permissions to NFSv4 permissions when a chmod() is done, from NFSv4 permissions to POSIX permissions when an acl is set (which implicitly sets the file permission bits), and from the MAY_READ/MAY_WRITE/MAY_EXEC/MAY_APPEND flags to NFSv4 permissions when doing an access check in a richacl. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 118 +++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 3 ++ include/uapi/linux/richacl.h | 44 ++++++++++++++++ 3 files changed, 165 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index c3ec928..a393001 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -65,3 +65,121 @@ richace_copy(struct richace *to, const struct richace *from) { memcpy(to, from, sizeof(struct richace)); } + +/* + * richacl_mask_to_mode - compute the file permission bits from mask + * @mask: %RICHACE_* permission mask + * + * Compute the file permission bits corresponding to a particular set of + * richacl permissions. + * + * See richacl_masks_to_mode(). + */ +static int +richacl_mask_to_mode(unsigned int mask) +{ + int mode = 0; + + if (mask & RICHACE_POSIX_MODE_READ) + mode |= S_IROTH; + if (mask & RICHACE_POSIX_MODE_WRITE) + mode |= S_IWOTH; + if (mask & RICHACE_POSIX_MODE_EXEC) + mode |= S_IXOTH; + + return mode; +} + +/** + * richacl_masks_to_mode - compute file permission bits from file masks + * + * When setting a richacl, we set the file permission bits to indicate maximum + * permissions: for example, we set the Write permission when a mask contains + * RICHACE_APPEND_DATA even if it does not also contain RICHACE_WRITE_DATA. + * + * Permissions which are not in RICHACE_POSIX_MODE_READ, + * RICHACE_POSIX_MODE_WRITE, or RICHACE_POSIX_MODE_EXEC cannot be represented + * in the file permission bits. Such permissions can still be effective, but + * not for new files or after a chmod(); they must be explicitly enabled in the + * richacl. + */ +int +richacl_masks_to_mode(const struct richacl *acl) +{ + return richacl_mask_to_mode(acl->a_owner_mask) << 6 | + richacl_mask_to_mode(acl->a_group_mask) << 3 | + richacl_mask_to_mode(acl->a_other_mask); +} +EXPORT_SYMBOL_GPL(richacl_masks_to_mode); + +/** + * richacl_mode_to_mask - compute a file mask from the lowest three mode bits + * @mode: mode to convert to richacl permissions + * + * When the file permission bits of a file are set with chmod(), this specifies + * the maximum permissions that processes will get. All permissions beyond + * that will be removed from the file masks, and become ineffective. + */ +unsigned int +richacl_mode_to_mask(umode_t mode) +{ + unsigned int mask = 0; + + if (mode & S_IROTH) + mask |= RICHACE_POSIX_MODE_READ; + if (mode & S_IWOTH) + mask |= RICHACE_POSIX_MODE_WRITE; + if (mode & S_IXOTH) + mask |= RICHACE_POSIX_MODE_EXEC; + + return mask; +} + +/** + * richacl_want_to_mask - convert the iop->permission want argument to a mask + * @want: @want argument of the permission inode operation + * + * When checking for append, @want is (MAY_WRITE | MAY_APPEND). + * + * Richacls use the iop->may_create and iop->may_delete hooks which are used + * for checking if creating and deleting files is allowed. These hooks do not + * use richacl_want_to_mask(), so we do not have to deal with mapping MAY_WRITE + * to RICHACE_ADD_FILE, RICHACE_ADD_SUBDIRECTORY, and RICHACE_DELETE_CHILD + * here. + */ +unsigned int +richacl_want_to_mask(unsigned int want) +{ + unsigned int mask = 0; + + if (want & MAY_READ) + mask |= RICHACE_READ_DATA; + if (want & MAY_DELETE_SELF) + mask |= RICHACE_DELETE; + if (want & MAY_TAKE_OWNERSHIP) + mask |= RICHACE_WRITE_OWNER; + if (want & MAY_CHMOD) + mask |= RICHACE_WRITE_ACL; + if (want & MAY_SET_TIMES) + mask |= RICHACE_WRITE_ATTRIBUTES; + if (want & MAY_EXEC) + mask |= RICHACE_EXECUTE; + /* + * differentiate MAY_WRITE from these request + */ + if (want & (MAY_APPEND | + MAY_CREATE_FILE | MAY_CREATE_DIR | + MAY_DELETE_CHILD)) { + if (want & MAY_APPEND) + mask |= RICHACE_APPEND_DATA; + if (want & MAY_CREATE_FILE) + mask |= RICHACE_ADD_FILE; + if (want & MAY_CREATE_DIR) + mask |= RICHACE_ADD_SUBDIRECTORY; + if (want & MAY_DELETE_CHILD) + mask |= RICHACE_DELETE_CHILD; + } else if (want & MAY_WRITE) + mask |= RICHACE_WRITE_DATA; + return mask; +} +EXPORT_SYMBOL_GPL(richacl_want_to_mask); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index edb8480..9102ef0 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -175,5 +175,8 @@ richace_is_same_identifier(const struct richace *a, const struct richace *b) extern struct richacl *richacl_alloc(int, gfp_t); extern struct richacl *richacl_clone(const struct richacl *, gfp_t); extern void richace_copy(struct richace *, const struct richace *); +extern int richacl_masks_to_mode(const struct richacl *); +extern unsigned int richacl_mode_to_mask(umode_t); +extern unsigned int richacl_want_to_mask(unsigned int); #endif /* __RICHACL_H */ diff --git a/include/uapi/linux/richacl.h b/include/uapi/linux/richacl.h index 08856f8..1ed48ac 100644 --- a/include/uapi/linux/richacl.h +++ b/include/uapi/linux/richacl.h @@ -96,4 +96,48 @@ RICHACE_WRITE_OWNER | \ RICHACE_SYNCHRONIZE ) +/* + * The POSIX permissions are supersets of the following richacl permissions: + * + * - MAY_READ maps to READ_DATA or LIST_DIRECTORY, depending on the type + * of the file system object. + * + * - MAY_WRITE maps to WRITE_DATA or RICHACE_APPEND_DATA for files, and to + * ADD_FILE, RICHACE_ADD_SUBDIRECTORY, or RICHACE_DELETE_CHILD for directories. + * + * - MAY_EXECUTE maps to RICHACE_EXECUTE. + * + * (Some of these richacl permissions have the same bit values.) + */ +#define RICHACE_POSIX_MODE_READ ( \ + RICHACE_READ_DATA | \ + RICHACE_LIST_DIRECTORY) +#define RICHACE_POSIX_MODE_WRITE ( \ + RICHACE_WRITE_DATA | \ + RICHACE_ADD_FILE | \ + RICHACE_APPEND_DATA | \ + RICHACE_ADD_SUBDIRECTORY | \ + RICHACE_DELETE_CHILD) +#define RICHACE_POSIX_MODE_EXEC RICHACE_EXECUTE +#define RICHACE_POSIX_MODE_ALL ( \ + RICHACE_POSIX_MODE_READ | \ + RICHACE_POSIX_MODE_WRITE | \ + RICHACE_POSIX_MODE_EXEC) + +/* + * These permissions are always allowed no matter what the acl says. + */ +#define RICHACE_POSIX_ALWAYS_ALLOWED ( \ + RICHACE_SYNCHRONIZE | \ + RICHACE_READ_ATTRIBUTES | \ + RICHACE_READ_ACL) + +/* + * The owner is implicitly granted these permissions under POSIX. + */ +#define RICHACE_POSIX_OWNER_ALLOWED ( \ + RICHACE_WRITE_ATTRIBUTES | \ + RICHACE_WRITE_OWNER | \ + RICHACE_WRITE_ACL) + #endif /* __UAPI_RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:18:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7437D29E0D for ; Tue, 3 Nov 2015 09:18:33 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 637B8304043 for ; Tue, 3 Nov 2015 07:18:33 -0800 (PST) X-ASG-Debug-ID: 1446563911-04cbb0660c1f7ba0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 6Erd8fiZLcDAupEQ (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:18:32 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 7D8FE8FAA0; Tue, 3 Nov 2015 15:18:31 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZY029477; Tue, 3 Nov 2015 10:18:25 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 08/51] richacl: Compute maximum file masks from an acl Date: Tue, 3 Nov 2015 16:16:44 +0100 X-ASG-Orig-Subj: [PATCH v13 08/51] richacl: Compute maximum file masks from an acl Message-Id: <1446563847-14005-9-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563911 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Compute upper bound owner, group, and other file masks with as few permissions as possible without denying any permissions that the NFSv4 acl in a richacl grants. This algorithm is used when a file inherits an acl at create time and when an acl is set via a mechanism that does not provide file masks (such as setting an acl via nfsd). When user-space sets an acl via setxattr, the extended attribute already includes the file masks. Setting an acl also sets the file mode permission bits: they are determined by the file masks; see richacl_masks_to_mode(). Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 157 ++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 1 + 2 files changed, 158 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index a393001..69b806c 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -183,3 +183,160 @@ richacl_want_to_mask(unsigned int want) return mask; } EXPORT_SYMBOL_GPL(richacl_want_to_mask); + +/* + * Note: functions like richacl_allowed_to_who(), richacl_group_class_allowed(), + * and richacl_compute_max_masks() iterate through the entire acl in reverse + * order as an optimization. + * + * In the standard algorithm, aces are considered in forward order. When a + * process matches an ace, the permissions in the ace are either allowed or + * denied depending on the ace type. Once a permission has been allowed or + * denied, it is no longer considered in further aces. + * + * By iterating through the acl in reverse order, we can compute the same + * result without having to keep track of which permissions have been allowed + * and denied already. + */ + +/** + * richacl_allowed_to_who - permissions allowed to a specific who value + * + * Compute the maximum mask values allowed to a specific who value, taking + * everyone@ aces into account. + */ +static unsigned int richacl_allowed_to_who(struct richacl *acl, + struct richace *who) +{ + struct richace *ace; + unsigned int allowed = 0; + + richacl_for_each_entry_reverse(ace, acl) { + if (richace_is_inherit_only(ace)) + continue; + if (richace_is_same_identifier(ace, who) || + richace_is_everyone(ace)) { + if (richace_is_allow(ace)) + allowed |= ace->e_mask; + else if (richace_is_deny(ace)) + allowed &= ~ace->e_mask; + } + } + return allowed; +} + +/** + * richacl_group_class_allowed - maximum permissions of the group class + * + * Compute the maximum mask values allowed to a process in the group class + * (i.e., a process which is not the owner but is in the owning group or + * matches a user or group acl entry). This includes permissions granted or + * denied by everyone@ aces. + * + * See richacl_compute_max_masks(). + */ +static unsigned int richacl_group_class_allowed(struct richacl *acl) +{ + struct richace *ace; + unsigned int everyone_allowed = 0, group_class_allowed = 0; + int had_group_ace = 0; + + richacl_for_each_entry_reverse(ace, acl) { + if (richace_is_inherit_only(ace) || + richace_is_owner(ace)) + continue; + + if (richace_is_everyone(ace)) { + if (richace_is_allow(ace)) + everyone_allowed |= ace->e_mask; + else if (richace_is_deny(ace)) + everyone_allowed &= ~ace->e_mask; + } else { + group_class_allowed |= + richacl_allowed_to_who(acl, ace); + + if (richace_is_group(ace)) + had_group_ace = 1; + } + } + /* + * If the acl doesn't contain any group@ aces, richacl_allowed_to_who() + * wasn't called for the owning group. We could make that call now, but + * we already know the result (everyone_allowed). + */ + if (!had_group_ace) + group_class_allowed |= everyone_allowed; + return group_class_allowed; +} + +/** + * richacl_compute_max_masks - compute upper bound masks + * + * Computes upper bound owner, group, and other masks so that none of the + * permissions allowed by the acl are disabled. + * + * We don't make assumptions about who the owner is so that the owner can + * change with no effect on the file masks or file mode permission bits; this + * means that we must assume that all entries can match the owner. + */ +void richacl_compute_max_masks(struct richacl *acl) +{ + unsigned int gmask = ~0; + struct richace *ace; + + /* + * @gmask contains all permissions which the group class is ever + * allowed. We use it to avoid adding permissions to the group mask + * from everyone@ allow aces which the group class is always denied + * through other aces. For example, the following acl would otherwise + * result in a group mask of rw: + * + * group@:w::deny + * everyone@:rw::allow + * + * Avoid computing @gmask for acls which do not include any group class + * deny aces: in such acls, the group class is never denied any + * permissions from everyone@ allow aces, and the group class cannot + * have fewer permissions than the other class. + */ + +restart: + acl->a_owner_mask = 0; + acl->a_group_mask = 0; + acl->a_other_mask = 0; + + richacl_for_each_entry_reverse(ace, acl) { + if (richace_is_inherit_only(ace)) + continue; + + if (richace_is_owner(ace)) { + if (richace_is_allow(ace)) + acl->a_owner_mask |= ace->e_mask; + else if (richace_is_deny(ace)) + acl->a_owner_mask &= ~ace->e_mask; + } else if (richace_is_everyone(ace)) { + if (richace_is_allow(ace)) { + acl->a_owner_mask |= ace->e_mask; + acl->a_group_mask |= ace->e_mask & gmask; + acl->a_other_mask |= ace->e_mask; + } else if (richace_is_deny(ace)) { + acl->a_owner_mask &= ~ace->e_mask; + acl->a_group_mask &= ~ace->e_mask; + acl->a_other_mask &= ~ace->e_mask; + } + } else { + if (richace_is_allow(ace)) { + acl->a_owner_mask |= ace->e_mask & gmask; + acl->a_group_mask |= ace->e_mask & gmask; + } else if (richace_is_deny(ace) && gmask == ~0) { + gmask = richacl_group_class_allowed(acl); + if (likely(gmask != ~0)) + /* should always be true */ + goto restart; + } + } + } + + acl->a_flags &= ~(RICHACL_WRITE_THROUGH | RICHACL_MASKED); +} +EXPORT_SYMBOL_GPL(richacl_compute_max_masks); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 9102ef0..3559b2c 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -178,5 +178,6 @@ extern void richace_copy(struct richace *, const struct richace *); extern int richacl_masks_to_mode(const struct richacl *); extern unsigned int richacl_mode_to_mask(umode_t); extern unsigned int richacl_want_to_mask(unsigned int); +extern void richacl_compute_max_masks(struct richacl *); #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:18:41 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 0B94529E0D for ; Tue, 3 Nov 2015 09:18:41 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 78DEDAC002 for ; Tue, 3 Nov 2015 07:18:40 -0800 (PST) X-ASG-Debug-ID: 1446563918-04cbb0660e1f7bc0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id o6BSPpRZB4DsbrPb (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:18:39 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 6B00D8FAA5; Tue, 3 Nov 2015 15:18:38 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZZ029477; Tue, 3 Nov 2015 10:18:32 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 09/51] richacl: Permission check algorithm Date: Tue, 3 Nov 2015 16:16:45 +0100 X-ASG-Orig-Subj: [PATCH v13 09/51] richacl: Permission check algorithm Message-Id: <1446563847-14005-10-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563918 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 A richacl roughly grants a requested access if the NFSv4 acl in the richacl grants the requested permissions according to the NFSv4 permission check algorithm and the file mask that applies to the process includes the requested permissions. Signed-off-by: Andreas Gruenbacher Reviewed-by: "J. Bruce Fields" --- fs/Makefile | 2 +- fs/richacl_inode.c | 149 ++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 3 + 3 files changed, 153 insertions(+), 1 deletion(-) create mode 100644 fs/richacl_inode.c diff --git a/fs/Makefile b/fs/Makefile index fe3e9dd..ec665fd 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -49,7 +49,7 @@ obj-$(CONFIG_SYSCTL) += drop_caches.o obj-$(CONFIG_FHANDLE) += fhandle.o obj-$(CONFIG_FS_RICHACL) += richacl.o -richacl-y := richacl_base.o +richacl-y := richacl_base.o richacl_inode.o obj-y += quota/ diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c new file mode 100644 index 0000000..99b3c93 --- /dev/null +++ b/fs/richacl_inode.c @@ -0,0 +1,149 @@ +/* + * Copyright (C) 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include + +/** + * richacl_permission - richacl permission check algorithm + * @inode: inode to check + * @acl: rich acl of the inode + * @want: requested access (MAY_* flags) + * + * Checks if the current process is granted @mask flags in @acl. + */ +int +richacl_permission(struct inode *inode, const struct richacl *acl, + int want) +{ + const struct richace *ace; + unsigned int mask = richacl_want_to_mask(want); + unsigned int requested = mask, denied = 0; + int in_owning_group = in_group_p(inode->i_gid); + int in_owner_or_group_class = in_owning_group; + + /* + * A process is + * - in the owner file class if it owns the file, + * - in the group file class if it is in the file's owning group or + * it matches any of the user or group entries, and + * - in the other file class otherwise. + * The file class is only relevant for determining which file mask to + * apply, which only happens for masked acls. + */ + if (acl->a_flags & RICHACL_MASKED) { + if ((acl->a_flags & RICHACL_WRITE_THROUGH) && + uid_eq(current_fsuid(), inode->i_uid)) { + denied = requested & ~acl->a_owner_mask; + goto out; + } + } else { + /* + * When the acl is not masked, there is no need to determine if + * the process is in the group class and we can break out + * earlier of the loop below. + */ + in_owner_or_group_class = 1; + } + + /* + * Check if the acl grants the requested access and determine which + * file class the process is in. + */ + richacl_for_each_entry(ace, acl) { + unsigned int ace_mask = ace->e_mask; + + if (richace_is_inherit_only(ace)) + continue; + if (richace_is_owner(ace)) { + if (!uid_eq(current_fsuid(), inode->i_uid)) + continue; + goto entry_matches_owner; + } else if (richace_is_group(ace)) { + if (!in_owning_group) + continue; + } else if (richace_is_unix_user(ace)) { + if (!uid_eq(current_fsuid(), ace->e_id.uid)) + continue; + if (uid_eq(current_fsuid(), inode->i_uid)) + goto entry_matches_owner; + } else if (richace_is_unix_group(ace)) { + if (!in_group_p(ace->e_id.gid)) + continue; + } else + goto entry_matches_everyone; + + /* + * Apply the group file mask to entries other than owner@ and + * everyone@ or user entries matching the owner. This ensures + * that we grant the same permissions as the acl computed by + * richacl_apply_masks(). + * + * Without this restriction, the following richacl would grant + * rw access to processes which are both the owner and in the + * owning group, but not to other users in the owning group, + * which could not be represented without masks: + * + * owner:rw::mask + * group@:rw::allow + */ + if ((acl->a_flags & RICHACL_MASKED) && richace_is_allow(ace)) + ace_mask &= acl->a_group_mask; + +entry_matches_owner: + /* The process is in the owner or group file class. */ + in_owner_or_group_class = 1; + +entry_matches_everyone: + /* Check which mask flags the ACE allows or denies. */ + if (richace_is_deny(ace)) + denied |= ace_mask & mask; + mask &= ~ace_mask; + + /* + * Keep going until we know which file class + * the process is in. + */ + if (!mask && in_owner_or_group_class) + break; + } + denied |= mask; + + if (acl->a_flags & RICHACL_MASKED) { + /* + * The file class a process is in determines which file mask + * applies. Check if that file mask also grants the requested + * access. + */ + if (uid_eq(current_fsuid(), inode->i_uid)) + denied |= requested & ~acl->a_owner_mask; + else if (in_owner_or_group_class) + denied |= requested & ~acl->a_group_mask; + else { + if (acl->a_flags & RICHACL_WRITE_THROUGH) + denied = requested & ~acl->a_other_mask; + else + denied |= requested & ~acl->a_other_mask; + } + } + +out: + return denied ? -EACCES : 0; +} +EXPORT_SYMBOL_GPL(richacl_permission); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 3559b2c..1d9f5f7 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -180,4 +180,7 @@ extern unsigned int richacl_mode_to_mask(umode_t); extern unsigned int richacl_want_to_mask(unsigned int); extern void richacl_compute_max_masks(struct richacl *); +/* richacl_inode.c */ +extern int richacl_permission(struct inode *, const struct richacl *, int); + #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:18:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A374929E18 for ; Tue, 3 Nov 2015 09:18:47 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4727AAC007 for ; Tue, 3 Nov 2015 07:18:47 -0800 (PST) X-ASG-Debug-ID: 1446563925-04bdf0330c1fc960001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id gMF0ABATkBaPTOuG (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:18:45 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 50A1042E5B6; Tue, 3 Nov 2015 15:18:45 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZa029477; Tue, 3 Nov 2015 10:18:39 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 10/51] vfs: Cache base_acl objects in inodes Date: Tue, 3 Nov 2015 16:16:46 +0100 X-ASG-Orig-Subj: [PATCH v13 10/51] vfs: Cache base_acl objects in inodes Message-Id: <1446563847-14005-11-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563925 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 POSIX ACLs and richacls are both objects allocated by kmalloc() with a reference count which are freed by kfree_rcu(). An inode can either cache an access and a default POSIX ACL, or a richacl (richacls do not have default acls). To allow an inode to cache either of the two kinds of acls, introduce a new base_acl type and convert i_acl and i_default_acl to that type. In most cases, the vfs then doesn't have to care which kind of acl an inode caches (if any). Signed-off-by: Andreas Gruenbacher --- drivers/staging/lustre/lustre/llite/llite_lib.c | 2 +- fs/f2fs/acl.c | 4 ++-- fs/inode.c | 4 ++-- fs/jffs2/acl.c | 6 ++++-- fs/posix_acl.c | 18 +++++++++--------- include/linux/fs.h | 25 ++++++++++++++++++++++--- include/linux/posix_acl.h | 12 ++++-------- include/linux/richacl.h | 2 +- 8 files changed, 45 insertions(+), 28 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index b4ed6c8..5766f69 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -1118,7 +1118,7 @@ void ll_clear_inode(struct inode *inode) } #ifdef CONFIG_FS_POSIX_ACL else if (lli->lli_posix_acl) { - LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) == 1); + LASSERT(atomic_read(&lli->lli_posix_acl->a_base.ba_refcount) == 1); LASSERT(lli->lli_remote_perms == NULL); posix_acl_release(lli->lli_posix_acl); lli->lli_posix_acl = NULL; diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c index c8f25f7..a4207de 100644 --- a/fs/f2fs/acl.c +++ b/fs/f2fs/acl.c @@ -270,7 +270,7 @@ static struct posix_acl *f2fs_acl_clone(const struct posix_acl *acl, sizeof(struct posix_acl_entry); clone = kmemdup(acl, size, flags); if (clone) - atomic_set(&clone->a_refcount, 1); + atomic_set(&clone->a_base.ba_refcount, 1); } return clone; } @@ -282,7 +282,7 @@ static int f2fs_acl_create_masq(struct posix_acl *acl, umode_t *mode_p) umode_t mode = *mode_p; int not_equiv = 0; - /* assert(atomic_read(acl->a_refcount) == 1); */ + /* assert(atomic_read(acl->a_base.ba_refcount) == 1); */ FOREACH_ACL_ENTRY(pa, acl, pe) { switch(pa->e_tag) { diff --git a/fs/inode.c b/fs/inode.c index 78a17b8..2a387f4 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -233,9 +233,9 @@ void __destroy_inode(struct inode *inode) #ifdef CONFIG_FS_POSIX_ACL if (inode->i_acl && inode->i_acl != ACL_NOT_CACHED) - posix_acl_release(inode->i_acl); + put_base_acl(inode->i_acl); if (inode->i_default_acl && inode->i_default_acl != ACL_NOT_CACHED) - posix_acl_release(inode->i_default_acl); + put_base_acl(inode->i_default_acl); #endif this_cpu_dec(nr_inodes); } diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c index 2f7a3c0..04a5836 100644 --- a/fs/jffs2/acl.c +++ b/fs/jffs2/acl.c @@ -294,13 +294,15 @@ int jffs2_init_acl_post(struct inode *inode) int rc; if (inode->i_default_acl) { - rc = __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_DEFAULT, inode->i_default_acl); + rc = __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_DEFAULT, + *acl_by_type(inode, ACL_TYPE_DEFAULT)); if (rc) return rc; } if (inode->i_acl) { - rc = __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_ACCESS, inode->i_acl); + rc = __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_ACCESS, + *acl_by_type(inode, ACL_TYPE_ACCESS)); if (rc) return rc; } diff --git a/fs/posix_acl.c b/fs/posix_acl.c index 4fb17de..b3b2265 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -25,9 +25,9 @@ struct posix_acl **acl_by_type(struct inode *inode, int type) { switch (type) { case ACL_TYPE_ACCESS: - return &inode->i_acl; + return (struct posix_acl **)&inode->i_acl; case ACL_TYPE_DEFAULT: - return &inode->i_default_acl; + return (struct posix_acl **)&inode->i_default_acl; default: BUG(); } @@ -83,16 +83,16 @@ EXPORT_SYMBOL(forget_cached_acl); void forget_all_cached_acls(struct inode *inode) { - struct posix_acl *old_access, *old_default; + struct base_acl *old_access, *old_default; spin_lock(&inode->i_lock); old_access = inode->i_acl; old_default = inode->i_default_acl; inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED; spin_unlock(&inode->i_lock); if (old_access != ACL_NOT_CACHED) - posix_acl_release(old_access); + put_base_acl(old_access); if (old_default != ACL_NOT_CACHED) - posix_acl_release(old_default); + put_base_acl(old_default); } EXPORT_SYMBOL(forget_all_cached_acls); @@ -129,7 +129,7 @@ EXPORT_SYMBOL(get_acl); void posix_acl_init(struct posix_acl *acl, int count) { - atomic_set(&acl->a_refcount, 1); + atomic_set(&acl->a_base.ba_refcount, 1); acl->a_count = count; } EXPORT_SYMBOL(posix_acl_init); @@ -162,7 +162,7 @@ posix_acl_clone(const struct posix_acl *acl, gfp_t flags) sizeof(struct posix_acl_entry); clone = kmemdup(acl, size, flags); if (clone) - atomic_set(&clone->a_refcount, 1); + atomic_set(&clone->a_base.ba_refcount, 1); } return clone; } @@ -384,7 +384,7 @@ static int posix_acl_create_masq(struct posix_acl *acl, umode_t *mode_p) umode_t mode = *mode_p; int not_equiv = 0; - /* assert(atomic_read(acl->a_refcount) == 1); */ + /* assert(atomic_read(acl->a_base.ba_refcount) == 1); */ FOREACH_ACL_ENTRY(pa, acl, pe) { switch(pa->e_tag) { @@ -439,7 +439,7 @@ static int __posix_acl_chmod_masq(struct posix_acl *acl, umode_t mode) struct posix_acl_entry *group_obj = NULL, *mask_obj = NULL; struct posix_acl_entry *pa, *pe; - /* assert(atomic_read(acl->a_refcount) == 1); */ + /* assert(atomic_read(acl->a_base.ba_refcount) == 1); */ FOREACH_ACL_ENTRY(pa, acl, pe) { switch(pa->e_tag) { diff --git a/include/linux/fs.h b/include/linux/fs.h index ba91a89..3c22c92 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -576,6 +576,12 @@ static inline void mapping_allow_writable(struct address_space *mapping) #define i_size_ordered_init(inode) do { } while (0) #endif +struct base_acl { + union { + atomic_t ba_refcount; + struct rcu_head ba_rcu; + }; +}; struct posix_acl; #define ACL_NOT_CACHED ((void *)(-1)) @@ -595,9 +601,9 @@ struct inode { kgid_t i_gid; unsigned int i_flags; -#ifdef CONFIG_FS_POSIX_ACL - struct posix_acl *i_acl; - struct posix_acl *i_default_acl; +#if defined(CONFIG_FS_POSIX_ACL) + struct base_acl *i_acl; + struct base_acl *i_default_acl; #endif const struct inode_operations *i_op; @@ -3059,4 +3065,17 @@ static inline bool dir_relax(struct inode *inode) extern bool path_noexec(const struct path *path); +static inline struct base_acl *get_base_acl(struct base_acl *acl) +{ + if (acl) + atomic_inc(&acl->ba_refcount); + return acl; +} + +static inline void put_base_acl(struct base_acl *acl) +{ + if (acl && atomic_dec_and_test(&acl->ba_refcount)) + kfree_rcu(acl, ba_rcu); +} + #endif /* _LINUX_FS_H */ diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index 3e96a6a..2c46441 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -43,10 +43,7 @@ struct posix_acl_entry { }; struct posix_acl { - union { - atomic_t a_refcount; - struct rcu_head a_rcu; - }; + struct base_acl a_base; unsigned int a_count; struct posix_acl_entry a_entries[0]; }; @@ -61,8 +58,7 @@ struct posix_acl { static inline struct posix_acl * posix_acl_dup(struct posix_acl *acl) { - if (acl) - atomic_inc(&acl->a_refcount); + get_base_acl(&acl->a_base); return acl; } @@ -72,8 +68,8 @@ posix_acl_dup(struct posix_acl *acl) static inline void posix_acl_release(struct posix_acl *acl) { - if (acl && atomic_dec_and_test(&acl->a_refcount)) - kfree_rcu(acl, a_rcu); + BUILD_BUG_ON(offsetof(struct posix_acl, a_base) != 0); + put_base_acl(&acl->a_base); } diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 1d9f5f7..2baef35 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -57,7 +57,7 @@ static inline struct richacl * richacl_get(struct richacl *acl) { if (acl) - atomic_inc(&acl->a_refcount); + atomic_inc(&acl->a_base.ba_refcount); return acl; } -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:18:53 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id CD19A7F6B for ; Tue, 3 Nov 2015 09:18:53 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id AAD298F8033 for ; Tue, 3 Nov 2015 07:18:53 -0800 (PST) X-ASG-Debug-ID: 1446563932-04cb6c7b841ddb40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id bUIdnqeN1hEiCVSw (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:18:52 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 3AF16ABC; Tue, 3 Nov 2015 15:18:52 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZb029477; Tue, 3 Nov 2015 10:18:45 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 11/51] vfs: Add get_richacl and set_richacl inode operations Date: Tue, 3 Nov 2015 16:16:47 +0100 X-ASG-Orig-Subj: [PATCH v13 11/51] vfs: Add get_richacl and set_richacl inode operations Message-Id: <1446563847-14005-12-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563932 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 These operations are similar to the get_acl and set_acl operations for POSIX ACLs. The distinction between access and default ACLs doesn't exist for richacls. Signed-off-by: Andreas Gruenbacher --- include/linux/fs.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/fs.h b/include/linux/fs.h index 3c22c92..08fde42 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1662,6 +1662,7 @@ struct inode_operations { const char * (*follow_link) (struct dentry *, void **); int (*permission) (struct inode *, int); struct posix_acl * (*get_acl)(struct inode *, int); + struct richacl * (*get_richacl)(struct inode *); int (*readlink) (struct dentry *, char __user *,int); void (*put_link) (struct inode *, void *); @@ -1691,6 +1692,7 @@ struct inode_operations { umode_t create_mode, int *opened); int (*tmpfile) (struct inode *, struct dentry *, umode_t); int (*set_acl)(struct inode *, struct posix_acl *, int); + int (*set_richacl)(struct inode *, struct richacl *); /* WARNING: probably going away soon, do not use! */ } ____cacheline_aligned; -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:19:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 479757F77 for ; Tue, 3 Nov 2015 09:19:01 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 35658304043 for ; Tue, 3 Nov 2015 07:19:01 -0800 (PST) X-ASG-Debug-ID: 1446563939-04cbb0660c1f7bf0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id nhOpB3Afby44qvCr (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:18:59 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 1D4DBA2C35; Tue, 3 Nov 2015 15:18:59 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZc029477; Tue, 3 Nov 2015 10:18:52 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 12/51] vfs: Cache richacl in struct inode Date: Tue, 3 Nov 2015 16:16:48 +0100 X-ASG-Orig-Subj: [PATCH v13 12/51] vfs: Cache richacl in struct inode Message-Id: <1446563847-14005-13-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563939 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Cache richacls in struct inode so that this doesn't have to be done individually in each filesystem. This is similar to POSIX ACLs. Signed-off-by: Andreas Gruenbacher --- fs/inode.c | 11 ++++++-- fs/posix_acl.c | 2 +- fs/richacl_base.c | 4 +-- fs/richacl_inode.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/fs.h | 5 +++- include/linux/richacl.h | 15 ++++++---- 6 files changed, 100 insertions(+), 12 deletions(-) diff --git a/fs/inode.c b/fs/inode.c index 2a387f4..8462ddb 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -174,8 +174,11 @@ int inode_init_always(struct super_block *sb, struct inode *inode) inode->i_private = NULL; inode->i_mapping = mapping; INIT_HLIST_HEAD(&inode->i_dentry); /* buggered by rcu freeing */ -#ifdef CONFIG_FS_POSIX_ACL - inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED; +#if defined(CONFIG_FS_POSIX_ACL) || defined(CONFIG_FS_RICHACL) + inode->i_acl = ACL_NOT_CACHED; +# if defined(CONFIG_FS_POSIX_ACL) + inode->i_default_acl = ACL_NOT_CACHED; +# endif #endif #ifdef CONFIG_FSNOTIFY @@ -231,11 +234,13 @@ void __destroy_inode(struct inode *inode) atomic_long_dec(&inode->i_sb->s_remove_count); } -#ifdef CONFIG_FS_POSIX_ACL +#if defined(CONFIG_FS_POSIX_ACL) || defined(CONFIG_FS_RICHACL) if (inode->i_acl && inode->i_acl != ACL_NOT_CACHED) put_base_acl(inode->i_acl); +# if defined(CONFIG_FS_POSIX_ACL) if (inode->i_default_acl && inode->i_default_acl != ACL_NOT_CACHED) put_base_acl(inode->i_default_acl); +# endif #endif this_cpu_dec(nr_inodes); } diff --git a/fs/posix_acl.c b/fs/posix_acl.c index b3b2265..1d766a5 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -38,7 +38,7 @@ struct posix_acl *get_cached_acl(struct inode *inode, int type) { struct posix_acl **p = acl_by_type(inode, type); struct posix_acl *acl = ACCESS_ONCE(*p); - if (acl) { + if (acl && IS_POSIXACL(inode)) { spin_lock(&inode->i_lock); acl = *p; if (acl != ACL_NOT_CACHED) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 69b806c..d0ab5e9 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -33,7 +33,7 @@ richacl_alloc(int count, gfp_t gfp) struct richacl *acl = kzalloc(size, gfp); if (acl) { - atomic_set(&acl->a_refcount, 1); + atomic_set(&acl->a_base.ba_refcount, 1); acl->a_count = count; } return acl; @@ -52,7 +52,7 @@ richacl_clone(const struct richacl *acl, gfp_t gfp) if (dup) { memcpy(dup, acl, size); - atomic_set(&dup->a_refcount, 1); + atomic_set(&dup->a_base.ba_refcount, 1); } return dup; } diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index 99b3c93..c41a6c4 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -20,6 +20,81 @@ #include #include +struct richacl *get_cached_richacl(struct inode *inode) +{ + struct richacl *acl; + + acl = (struct richacl *)ACCESS_ONCE(inode->i_acl); + if (acl && IS_RICHACL(inode)) { + spin_lock(&inode->i_lock); + acl = (struct richacl *)inode->i_acl; + if (acl != ACL_NOT_CACHED) + acl = richacl_get(acl); + spin_unlock(&inode->i_lock); + } + return acl; +} +EXPORT_SYMBOL_GPL(get_cached_richacl); + +struct richacl *get_cached_richacl_rcu(struct inode *inode) +{ + return (struct richacl *)rcu_dereference(inode->i_acl); +} +EXPORT_SYMBOL_GPL(get_cached_richacl_rcu); + +void set_cached_richacl(struct inode *inode, struct richacl *acl) +{ + struct base_acl *old = NULL; + + spin_lock(&inode->i_lock); + old = inode->i_acl; + rcu_assign_pointer(inode->i_acl, &richacl_get(acl)->a_base); + spin_unlock(&inode->i_lock); + if (old != ACL_NOT_CACHED) + put_base_acl(old); +} +EXPORT_SYMBOL_GPL(set_cached_richacl); + +void forget_cached_richacl(struct inode *inode) +{ + struct base_acl *old = NULL; + + spin_lock(&inode->i_lock); + old = inode->i_acl; + inode->i_acl = ACL_NOT_CACHED; + spin_unlock(&inode->i_lock); + if (old != ACL_NOT_CACHED) + put_base_acl(old); +} +EXPORT_SYMBOL_GPL(forget_cached_richacl); + +struct richacl *get_richacl(struct inode *inode) +{ + struct richacl *acl; + + acl = get_cached_richacl(inode); + if (acl != ACL_NOT_CACHED) + return acl; + + if (!IS_RICHACL(inode)) + return NULL; + + /* + * A filesystem can force a ACL callback by just never filling the + * ACL cache. But normally you'd fill the cache either at inode + * instantiation time, or on the first ->get_richacl call. + * + * If the filesystem doesn't have a get_richacl() function at all, + * we'll just create the negative cache entry. + */ + if (!inode->i_op->get_richacl) { + set_cached_richacl(inode, NULL); + return NULL; + } + return inode->i_op->get_richacl(inode); +} +EXPORT_SYMBOL_GPL(get_richacl); + /** * richacl_permission - richacl permission check algorithm * @inode: inode to check diff --git a/include/linux/fs.h b/include/linux/fs.h index 08fde42..d91deef 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -583,6 +583,7 @@ struct base_acl { }; }; struct posix_acl; +struct richacl; #define ACL_NOT_CACHED ((void *)(-1)) #define IOP_FASTPERM 0x0001 @@ -601,9 +602,11 @@ struct inode { kgid_t i_gid; unsigned int i_flags; -#if defined(CONFIG_FS_POSIX_ACL) +#if defined(CONFIG_FS_POSIX_ACL) || defined(CONFIG_FS_RICHACL) struct base_acl *i_acl; +# if defined(CONFIG_FS_POSIX_ACL) struct base_acl *i_default_acl; +# endif #endif const struct inode_operations *i_op; diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 2baef35..de7d0d9 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -31,7 +31,7 @@ struct richace { }; struct richacl { - atomic_t a_refcount; + struct base_acl a_base; unsigned int a_owner_mask; unsigned int a_group_mask; unsigned int a_other_mask; @@ -56,8 +56,7 @@ struct richacl { static inline struct richacl * richacl_get(struct richacl *acl) { - if (acl) - atomic_inc(&acl->a_base.ba_refcount); + get_base_acl(&acl->a_base); return acl; } @@ -67,10 +66,16 @@ richacl_get(struct richacl *acl) static inline void richacl_put(struct richacl *acl) { - if (acl && atomic_dec_and_test(&acl->a_refcount)) - kfree(acl); + BUILD_BUG_ON(offsetof(struct richacl, a_base) != 0); + put_base_acl(&acl->a_base); } +extern struct richacl *get_cached_richacl(struct inode *); +extern struct richacl *get_cached_richacl_rcu(struct inode *); +extern void set_cached_richacl(struct inode *, struct richacl *); +extern void forget_cached_richacl(struct inode *); +extern struct richacl *get_richacl(struct inode *); + /** * richace_is_owner - check if @ace is an OWNER@ entry */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:19:07 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C0D0429E20 for ; Tue, 3 Nov 2015 09:19:07 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id AF7458F8033 for ; Tue, 3 Nov 2015 07:19:07 -0800 (PST) X-ASG-Debug-ID: 1446563946-04cbb0660c1f7c10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id UmtHrt1OGU4Szdmj (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:19:06 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 09CFC8F4EF; Tue, 3 Nov 2015 15:19:06 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZd029477; Tue, 3 Nov 2015 10:18:59 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 13/51] richacl: Update the file masks in chmod() Date: Tue, 3 Nov 2015 16:16:49 +0100 X-ASG-Orig-Subj: [PATCH v13 13/51] richacl: Update the file masks in chmod() Message-Id: <1446563847-14005-14-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563946 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Doing a chmod() sets the file mode, which includes the file permission bits. When a file has a richacl, the permissions that the richacl grants need to be limited to what the new file permission bits allow. This is done by setting the file masks in the richacl to what the file permission bits map to. The richacl access check algorithm takes the file masks into account, which ensures that the richacl cannot grant too many permissions. It is possible to explicitly add permissions to the file masks which go beyond what the file permission bits can grant (like the RICHACE_WRITE_ACL permission). The POSIX.1 standard calls this an alternate file access control mechanism. A subsequent chmod() would ensure that those permissions are disabled again. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 42 ++++++++++++++++++++++++++++++++++++++++++ fs/richacl_inode.c | 30 ++++++++++++++++++++++++++++++ include/linux/richacl.h | 2 ++ 3 files changed, 74 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index d0ab5e9..00e87be 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -340,3 +340,45 @@ restart: acl->a_flags &= ~(RICHACL_WRITE_THROUGH | RICHACL_MASKED); } EXPORT_SYMBOL_GPL(richacl_compute_max_masks); + +/** + * __richacl_chmod - update the file masks to reflect the new mode + * @acl: access control list + * @mode: new file permission bits including the file type + * + * Return a copy of @acl where the file masks have been replaced by the file + * masks corresponding to the file permission bits in @mode, or returns @acl + * itself if the file masks are already up to date. Takes over a reference + * to @acl. + */ +struct richacl * +__richacl_chmod(struct richacl *acl, umode_t mode) +{ + unsigned int x = S_ISDIR(mode) ? 0 : RICHACE_DELETE_CHILD; + unsigned int owner_mask, group_mask, other_mask; + struct richacl *clone; + + owner_mask = richacl_mode_to_mask(mode >> 6) & ~x; + group_mask = richacl_mode_to_mask(mode >> 3) & ~x; + other_mask = richacl_mode_to_mask(mode) & ~x; + + if (acl->a_owner_mask == owner_mask && + acl->a_group_mask == group_mask && + acl->a_other_mask == other_mask && + (acl->a_flags & RICHACL_MASKED) && + (acl->a_flags & RICHACL_WRITE_THROUGH)) + return acl; + + clone = richacl_clone(acl, GFP_KERNEL); + richacl_put(acl); + if (!clone) + return ERR_PTR(-ENOMEM); + + clone->a_flags |= (RICHACL_WRITE_THROUGH | RICHACL_MASKED); + clone->a_owner_mask = owner_mask; + clone->a_group_mask = group_mask; + clone->a_other_mask = other_mask; + + return clone; +} +EXPORT_SYMBOL_GPL(__richacl_chmod); diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index c41a6c4..301f246 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -222,3 +222,33 @@ out: return denied ? -EACCES : 0; } EXPORT_SYMBOL_GPL(richacl_permission); + +/** + * richacl_chmod - filesystem chmod helper + * @inode: inode whose file permission bits to change + * @mode: new file permission bits including the file type + * + * Helper for filesystems to use to perform a chmod on the richacl of an inode. + */ +int +richacl_chmod(struct inode *inode, umode_t mode) +{ + struct richacl *acl; + int retval; + + if (S_ISLNK(mode)) + return -EOPNOTSUPP; + if (!inode->i_op->set_richacl) + return -EOPNOTSUPP; + acl = get_richacl(inode); + if (IS_ERR_OR_NULL(acl)) + return PTR_ERR(acl); + acl = __richacl_chmod(acl, mode); + if (IS_ERR(acl)) + return PTR_ERR(acl); + retval = inode->i_op->set_richacl(inode, acl); + richacl_put(acl); + + return retval; +} +EXPORT_SYMBOL(richacl_chmod); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index de7d0d9..3626314 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -184,8 +184,10 @@ extern int richacl_masks_to_mode(const struct richacl *); extern unsigned int richacl_mode_to_mask(umode_t); extern unsigned int richacl_want_to_mask(unsigned int); extern void richacl_compute_max_masks(struct richacl *); +extern struct richacl *__richacl_chmod(struct richacl *, umode_t); /* richacl_inode.c */ extern int richacl_permission(struct inode *, const struct richacl *, int); +extern int richacl_chmod(struct inode *, umode_t); #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:19:15 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 0A0EE29E1F for ; Tue, 3 Nov 2015 09:19:15 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 85C57AC007 for ; Tue, 3 Nov 2015 07:19:14 -0800 (PST) X-ASG-Debug-ID: 1446563953-04bdf0330b1fc9b0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id AfB9BuvL4zJudYJu (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:19:13 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id E8BBEC0D61A5; Tue, 3 Nov 2015 15:19:12 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZe029477; Tue, 3 Nov 2015 10:19:06 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 14/51] richacl: Check if an acl is equivalent to a file mode Date: Tue, 3 Nov 2015 16:16:50 +0100 X-ASG-Orig-Subj: [PATCH v13 14/51] richacl: Check if an acl is equivalent to a file mode Message-Id: <1446563847-14005-15-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563953 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 ACLs are considered equivalent to file modes if they only consist of owner@, group@, and everyone@ entries, the owner@ permissions do not depend on whether the owner is a member in the owning group, and no inheritance flags are set. This test is used to avoid storing richacls if the acl can be computed from the file permission bits. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 104 ++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 1 + 2 files changed, 105 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 00e87be..56b5ad6 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -382,3 +382,107 @@ __richacl_chmod(struct richacl *acl, umode_t mode) return clone; } EXPORT_SYMBOL_GPL(__richacl_chmod); + +/** + * richacl_equiv_mode - compute the mode equivalent of @acl + * + * An acl is considered equivalent to a file mode if it only consists of + * owner@, group@, and everyone@ entries and the owner@ permissions do not + * depend on whether the owner is a member in the owning group. + */ +int +richacl_equiv_mode(const struct richacl *acl, umode_t *mode_p) +{ + umode_t mode = *mode_p; + + /* + * The RICHACE_DELETE_CHILD flag is meaningless for non-directories, so + * we ignore it. + */ + unsigned int x = S_ISDIR(mode) ? 0 : RICHACE_DELETE_CHILD; + struct { + unsigned int allowed; + unsigned int defined; /* allowed or denied */ + } owner = { + .defined = RICHACE_POSIX_ALWAYS_ALLOWED | + RICHACE_POSIX_OWNER_ALLOWED | x, + }, group = { + .defined = RICHACE_POSIX_ALWAYS_ALLOWED | x, + }, everyone = { + .defined = RICHACE_POSIX_ALWAYS_ALLOWED | x, + }; + const struct richace *ace; + + if (acl->a_flags & ~(RICHACL_WRITE_THROUGH | RICHACL_MASKED)) + return -1; + + richacl_for_each_entry(ace, acl) { + if (ace->e_flags & ~RICHACE_SPECIAL_WHO) + return -1; + + if (richace_is_owner(ace) || richace_is_everyone(ace)) { + x = ace->e_mask & ~owner.defined; + if (richace_is_allow(ace)) { + unsigned int group_denied = + group.defined & ~group.allowed; + + if (x & group_denied) + return -1; + owner.allowed |= x; + } else /* if (richace_is_deny(ace)) */ { + if (x & group.allowed) + return -1; + } + owner.defined |= x; + + if (richace_is_everyone(ace)) { + x = ace->e_mask; + if (richace_is_allow(ace)) { + group.allowed |= + x & ~group.defined; + everyone.allowed |= + x & ~everyone.defined; + } + group.defined |= x; + everyone.defined |= x; + } + } else if (richace_is_group(ace)) { + x = ace->e_mask & ~group.defined; + if (richace_is_allow(ace)) + group.allowed |= x; + group.defined |= x; + } else + return -1; + } + + if (group.allowed & ~owner.defined) + return -1; + + if (acl->a_flags & RICHACL_MASKED) { + if (acl->a_flags & RICHACL_WRITE_THROUGH) { + owner.allowed = acl->a_owner_mask; + everyone.allowed = acl->a_other_mask; + } else { + owner.allowed &= acl->a_owner_mask; + everyone.allowed &= acl->a_other_mask; + } + group.allowed &= acl->a_group_mask; + } + + mode = (mode & ~S_IRWXUGO) | + (richacl_mask_to_mode(owner.allowed) << 6) | + (richacl_mask_to_mode(group.allowed) << 3) | + richacl_mask_to_mode(everyone.allowed); + + /* Mask flags we can ignore */ + x = S_ISDIR(mode) ? 0 : RICHACE_DELETE_CHILD; + + if (((richacl_mode_to_mask(mode >> 6) ^ owner.allowed) & ~x) || + ((richacl_mode_to_mask(mode >> 3) ^ group.allowed) & ~x) || + ((richacl_mode_to_mask(mode) ^ everyone.allowed) & ~x)) + return -1; + + *mode_p = mode; + return 0; +} +EXPORT_SYMBOL_GPL(richacl_equiv_mode); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 3626314..ddd5aa6 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -185,6 +185,7 @@ extern unsigned int richacl_mode_to_mask(umode_t); extern unsigned int richacl_want_to_mask(unsigned int); extern void richacl_compute_max_masks(struct richacl *); extern struct richacl *__richacl_chmod(struct richacl *, umode_t); +extern int richacl_equiv_mode(const struct richacl *, umode_t *); /* richacl_inode.c */ extern int richacl_permission(struct inode *, const struct richacl *, int); -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:19:22 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 02E2429E1F for ; Tue, 3 Nov 2015 09:19:22 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id D472A304039 for ; Tue, 3 Nov 2015 07:19:21 -0800 (PST) X-ASG-Debug-ID: 1446563960-04cbb0660d1f7c30001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 9yex0y3R23sENT7C (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:19:20 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 07F4B8F4E4; Tue, 3 Nov 2015 15:19:20 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZf029477; Tue, 3 Nov 2015 10:19:13 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 15/51] richacl: Create-time inheritance Date: Tue, 3 Nov 2015 16:16:51 +0100 X-ASG-Orig-Subj: [PATCH v13 15/51] richacl: Create-time inheritance Message-Id: <1446563847-14005-16-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563960 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 When a new file is created, it can inherit an acl from its parent directory; this is similar to how default acls work in POSIX (draft) ACLs. As with POSIX ACLs, if a file inherits an acl from its parent directory, the intersection between the create mode and the permissions granted by the inherited acl determines the file masks and file permission bits, and the umask is ignored. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++ fs/richacl_inode.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 2 ++ 3 files changed, 140 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 56b5ad6..9f7d91d 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -486,3 +486,71 @@ richacl_equiv_mode(const struct richacl *acl, umode_t *mode_p) return 0; } EXPORT_SYMBOL_GPL(richacl_equiv_mode); + +/** + * richacl_inherit - compute the inherited acl of a new file + * @dir_acl: acl of the containing directory + * @isdir: inherit by a directory or non-directory? + * + * A directory can have acl entries which files and/or directories created + * inside the directory will inherit. This function computes the acl for such + * a new file. If there is no inheritable acl, it will return %NULL. + */ +struct richacl * +richacl_inherit(const struct richacl *dir_acl, int isdir) +{ + const struct richace *dir_ace; + struct richacl *acl = NULL; + struct richace *ace; + int count = 0; + + if (isdir) { + richacl_for_each_entry(dir_ace, dir_acl) { + if (!richace_is_inheritable(dir_ace)) + continue; + count++; + } + if (!count) + return NULL; + acl = richacl_alloc(count, GFP_KERNEL); + if (!acl) + return ERR_PTR(-ENOMEM); + ace = acl->a_entries; + richacl_for_each_entry(dir_ace, dir_acl) { + if (!richace_is_inheritable(dir_ace)) + continue; + richace_copy(ace, dir_ace); + if (dir_ace->e_flags & RICHACE_NO_PROPAGATE_INHERIT_ACE) + ace->e_flags &= ~RICHACE_INHERITANCE_FLAGS; + else if (!(dir_ace->e_flags & RICHACE_DIRECTORY_INHERIT_ACE)) + ace->e_flags |= RICHACE_INHERIT_ONLY_ACE; + ace++; + } + } else { + richacl_for_each_entry(dir_ace, dir_acl) { + if (!(dir_ace->e_flags & RICHACE_FILE_INHERIT_ACE)) + continue; + count++; + } + if (!count) + return NULL; + acl = richacl_alloc(count, GFP_KERNEL); + if (!acl) + return ERR_PTR(-ENOMEM); + ace = acl->a_entries; + richacl_for_each_entry(dir_ace, dir_acl) { + if (!(dir_ace->e_flags & RICHACE_FILE_INHERIT_ACE)) + continue; + richace_copy(ace, dir_ace); + ace->e_flags &= ~RICHACE_INHERITANCE_FLAGS; + /* + * RICHACE_DELETE_CHILD is meaningless for + * non-directories, so clear it. + */ + ace->e_mask &= ~RICHACE_DELETE_CHILD; + ace++; + } + } + + return acl; +} diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index 301f246..d2bf076 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -252,3 +252,73 @@ richacl_chmod(struct inode *inode, umode_t mode) return retval; } EXPORT_SYMBOL(richacl_chmod); + +/* + * richacl_inherit_inode - compute inherited acl and file mode + * @dir_acl: acl of the containing directory + * @mode_p: mode of the new inode + * + * The file permission bits in @mode_p must be set to the create mode by the + * caller. + * + * If there is an inheritable acl, the maximum permissions that the acl grants + * are computed and the file masks of the new acl are set accordingly. + */ +static struct richacl * +richacl_inherit_inode(const struct richacl *dir_acl, umode_t *mode_p) +{ + struct richacl *acl; + umode_t mode = *mode_p; + + acl = richacl_inherit(dir_acl, S_ISDIR(mode)); + if (acl) { + if (richacl_equiv_mode(acl, &mode) == 0) { + *mode_p &= mode; + richacl_put(acl); + acl = NULL; + } else { + richacl_compute_max_masks(acl); + /* + * Ensure that the acl will not grant any permissions + * beyond the create mode. + */ + acl->a_flags |= RICHACL_MASKED; + acl->a_owner_mask &= + richacl_mode_to_mask(mode >> 6); + acl->a_group_mask &= + richacl_mode_to_mask(mode >> 3); + acl->a_other_mask &= + richacl_mode_to_mask(mode); + } + } else + *mode_p &= ~current_umask(); + + return acl; +} + +/** + * richacl_create - filesystem create helper + * @mode_p: mode of the new inode + * @dir: containing directory + * + * Compute the inherited acl for a new inode. If there is no acl to inherit, + * apply the umask. Use when creating a new inode on a richacl enabled file + * system. + */ +struct richacl *richacl_create(umode_t *mode_p, struct inode *dir) +{ + struct richacl *dir_acl, *acl = NULL; + + if (S_ISLNK(*mode_p)) + return NULL; + dir_acl = get_richacl(dir); + if (dir_acl) { + if (IS_ERR(dir_acl)) + return dir_acl; + acl = richacl_inherit_inode(dir_acl, mode_p); + richacl_put(dir_acl); + } else + *mode_p &= ~current_umask(); + return acl; +} +EXPORT_SYMBOL_GPL(richacl_create); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index ddd5aa6..302872b 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -186,9 +186,11 @@ extern unsigned int richacl_want_to_mask(unsigned int); extern void richacl_compute_max_masks(struct richacl *); extern struct richacl *__richacl_chmod(struct richacl *, umode_t); extern int richacl_equiv_mode(const struct richacl *, umode_t *); +extern struct richacl *richacl_inherit(const struct richacl *, int); /* richacl_inode.c */ extern int richacl_permission(struct inode *, const struct richacl *, int); extern int richacl_chmod(struct inode *, umode_t); +extern struct richacl *richacl_create(umode_t *, struct inode *); #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:19:28 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 945F729E1E for ; Tue, 3 Nov 2015 09:19:28 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 81CFB30404E for ; Tue, 3 Nov 2015 07:19:28 -0800 (PST) X-ASG-Debug-ID: 1446563966-04cb6c7b861ddb80001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id klWcyWTZOGi67bWv (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:19:27 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id B06F48E224; Tue, 3 Nov 2015 15:19:26 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZg029477; Tue, 3 Nov 2015 10:19:20 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 16/51] richacl: Automatic Inheritance Date: Tue, 3 Nov 2015 16:16:52 +0100 X-ASG-Orig-Subj: [PATCH v13 16/51] richacl: Automatic Inheritance Message-Id: <1446563847-14005-17-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563967 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Automatic Inheritance (AI) allows changes to the acl of a directory to propagate down to children. This is mostly implemented in user space: when a process changes the permissions of a directory and Automatic Inheritance is enabled for that directory, the process must propagate those changes to all children, recursively. The kernel enables this by keeping track of which permissions have been inherited at create time. In addition, it makes sure that permission propagation is turned off when the permissions are set explicitly (for example, upon create or chmod). Automatic Inheritance works as follows: - When the RICHACL_AUTO_INHERIT flag in the acl of a file or directory is not set, the file or directory is not affected by AI. - When the RICHACL_AUTO_INHERIT flag in the acl of a directory is set and a file or subdirectory is created in that directory, the inherited acl will have the RICHACL_AUTO_INHERIT flag set, and all inherited aces will have the RICHACE_INHERITED_ACE flag set. This allows user space to distinguish between aces which have been inherited and aces which have been explicitly added. - When the RICHACL_PROTECTED acl flag in the acl of a file or directory is set, AI will not modify the acl. This does not affect propagation of permissions from the file to its children (if the file is a directory). Linux does not have a way of creating files or directories without setting the file permission bits, so all files created inside a directory with RICHACL_AUTO_INHERIT set will have the RICHACL_PROTECTED flag set. This effectively disables Automatic Inheritance. Protocols which support creating files without specifying permissions can explicitly clear the RICHACL_PROTECTED flag after creating a file and reset the file masks to "undo" applying the create mode; see richacl_compute_max_masks(). They should set the RICHACL_DEFAULTED flag. (A mechanism that would allow to indicate to the kernel to ignore the create mode in the first place when there are inherited permissions would be nice to have.) Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 10 +++++++++- fs/richacl_inode.c | 7 +++++++ include/linux/richacl.h | 12 ++++++++++++ include/uapi/linux/richacl.h | 11 ++++++++++- 4 files changed, 38 insertions(+), 2 deletions(-) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 9f7d91d..2a9c448 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -366,7 +366,8 @@ __richacl_chmod(struct richacl *acl, umode_t mode) acl->a_group_mask == group_mask && acl->a_other_mask == other_mask && (acl->a_flags & RICHACL_MASKED) && - (acl->a_flags & RICHACL_WRITE_THROUGH)) + (acl->a_flags & RICHACL_WRITE_THROUGH) && + (!richacl_is_auto_inherit(acl) || richacl_is_protected(acl))) return acl; clone = richacl_clone(acl, GFP_KERNEL); @@ -378,6 +379,8 @@ __richacl_chmod(struct richacl *acl, umode_t mode) clone->a_owner_mask = owner_mask; clone->a_group_mask = group_mask; clone->a_other_mask = other_mask; + if (richacl_is_auto_inherit(clone)) + clone->a_flags |= RICHACL_PROTECTED; return clone; } @@ -551,6 +554,11 @@ richacl_inherit(const struct richacl *dir_acl, int isdir) ace++; } } + if (richacl_is_auto_inherit(dir_acl)) { + acl->a_flags = RICHACL_AUTO_INHERIT; + richacl_for_each_entry(ace, acl) + ace->e_flags |= RICHACE_INHERITED_ACE; + } return acl; } diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index d2bf076..24276da 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -277,6 +277,13 @@ richacl_inherit_inode(const struct richacl *dir_acl, umode_t *mode_p) richacl_put(acl); acl = NULL; } else { + /* + * We need to set RICHACL_PROTECTED because we are + * doing an implicit chmod + */ + if (richacl_is_auto_inherit(acl)) + acl->a_flags |= RICHACL_PROTECTED; + richacl_compute_max_masks(acl); /* * Ensure that the acl will not grant any permissions diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 302872b..7cfa64d 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -76,6 +76,18 @@ extern void set_cached_richacl(struct inode *, struct richacl *); extern void forget_cached_richacl(struct inode *); extern struct richacl *get_richacl(struct inode *); +static inline int +richacl_is_auto_inherit(const struct richacl *acl) +{ + return acl->a_flags & RICHACL_AUTO_INHERIT; +} + +static inline int +richacl_is_protected(const struct richacl *acl) +{ + return acl->a_flags & RICHACL_PROTECTED; +} + /** * richace_is_owner - check if @ace is an OWNER@ entry */ diff --git a/include/uapi/linux/richacl.h b/include/uapi/linux/richacl.h index 1ed48ac..8849a53 100644 --- a/include/uapi/linux/richacl.h +++ b/include/uapi/linux/richacl.h @@ -18,6 +18,9 @@ #define __UAPI_RICHACL_H /* a_flags values */ +#define RICHACL_AUTO_INHERIT 0x01 +#define RICHACL_PROTECTED 0x02 +#define RICHACL_DEFAULTED 0x04 #define RICHACL_WRITE_THROUGH 0x40 #define RICHACL_MASKED 0x80 @@ -31,6 +34,7 @@ #define RICHACE_NO_PROPAGATE_INHERIT_ACE 0x0004 #define RICHACE_INHERIT_ONLY_ACE 0x0008 #define RICHACE_IDENTIFIER_GROUP 0x0040 +#define RICHACE_INHERITED_ACE 0x0080 #define RICHACE_SPECIAL_WHO 0x4000 /* e_mask bitflags */ @@ -60,6 +64,9 @@ #define RICHACE_EVERYONE_SPECIAL_ID 2 #define RICHACL_VALID_FLAGS ( \ + RICHACL_AUTO_INHERIT | \ + RICHACL_PROTECTED | \ + RICHACL_DEFAULTED | \ RICHACL_WRITE_THROUGH | \ RICHACL_MASKED ) @@ -69,13 +76,15 @@ RICHACE_NO_PROPAGATE_INHERIT_ACE | \ RICHACE_INHERIT_ONLY_ACE | \ RICHACE_IDENTIFIER_GROUP | \ + RICHACE_INHERITED_ACE | \ RICHACE_SPECIAL_WHO ) #define RICHACE_INHERITANCE_FLAGS ( \ RICHACE_FILE_INHERIT_ACE | \ RICHACE_DIRECTORY_INHERIT_ACE | \ RICHACE_NO_PROPAGATE_INHERIT_ACE | \ - RICHACE_INHERIT_ONLY_ACE ) + RICHACE_INHERIT_ONLY_ACE | \ + RICHACE_INHERITED_ACE ) /* Valid RICHACE_* flags for directories and non-directories */ #define RICHACE_VALID_MASK ( \ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:19:37 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1335729E1E for ; Tue, 3 Nov 2015 09:19:37 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 71DCEAC002 for ; Tue, 3 Nov 2015 07:19:36 -0800 (PST) X-ASG-Debug-ID: 1446563973-04cbb0660c1f7c50001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id UeIfUm6BHnIMXjQN (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:19:34 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 995A98535A; Tue, 3 Nov 2015 15:19:33 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZh029477; Tue, 3 Nov 2015 10:19:27 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 17/51] richacl: xattr mapping functions Date: Tue, 3 Nov 2015 16:16:53 +0100 X-ASG-Orig-Subj: [PATCH v13 17/51] richacl: xattr mapping functions Message-Id: <1446563847-14005-18-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563974 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Map between "system.richacl" xattrs and the in-kernel representation. Signed-off-by: Andreas Gruenbacher --- fs/Makefile | 2 +- fs/richacl_xattr.c | 220 +++++++++++++++++++++++++++++++++++++ fs/xattr.c | 34 +++++- include/linux/richacl_xattr.h | 42 +++++++ include/uapi/linux/Kbuild | 1 + include/uapi/linux/richacl_xattr.h | 44 ++++++++ include/uapi/linux/xattr.h | 2 + 7 files changed, 338 insertions(+), 7 deletions(-) create mode 100644 fs/richacl_xattr.c create mode 100644 include/linux/richacl_xattr.h create mode 100644 include/uapi/linux/richacl_xattr.h diff --git a/fs/Makefile b/fs/Makefile index ec665fd..35e640d 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -49,7 +49,7 @@ obj-$(CONFIG_SYSCTL) += drop_caches.o obj-$(CONFIG_FHANDLE) += fhandle.o obj-$(CONFIG_FS_RICHACL) += richacl.o -richacl-y := richacl_base.o richacl_inode.o +richacl-y := richacl_base.o richacl_inode.o richacl_xattr.o obj-y += quota/ diff --git a/fs/richacl_xattr.c b/fs/richacl_xattr.c new file mode 100644 index 0000000..38473b6 --- /dev/null +++ b/fs/richacl_xattr.c @@ -0,0 +1,220 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include + +MODULE_LICENSE("GPL"); + +/** + * richacl_from_xattr - convert a richacl xattr into the in-memory representation + */ +struct richacl * +richacl_from_xattr(struct user_namespace *user_ns, + const void *value, size_t size) +{ + const struct richacl_xattr *xattr_acl = value; + const struct richace_xattr *xattr_ace = (void *)(xattr_acl + 1); + struct richacl *acl; + struct richace *ace; + int count; + + if (size < sizeof(*xattr_acl) || + xattr_acl->a_version != RICHACL_XATTR_VERSION || + (xattr_acl->a_flags & ~RICHACL_VALID_FLAGS)) + return ERR_PTR(-EINVAL); + size -= sizeof(*xattr_acl); + count = le16_to_cpu(xattr_acl->a_count); + if (count > RICHACL_XATTR_MAX_COUNT) + return ERR_PTR(-EINVAL); + if (size != count * sizeof(*xattr_ace)) + return ERR_PTR(-EINVAL); + + acl = richacl_alloc(count, GFP_NOFS); + if (!acl) + return ERR_PTR(-ENOMEM); + + acl->a_flags = xattr_acl->a_flags; + acl->a_owner_mask = le32_to_cpu(xattr_acl->a_owner_mask); + if (acl->a_owner_mask & ~RICHACE_VALID_MASK) + goto fail_einval; + acl->a_group_mask = le32_to_cpu(xattr_acl->a_group_mask); + if (acl->a_group_mask & ~RICHACE_VALID_MASK) + goto fail_einval; + acl->a_other_mask = le32_to_cpu(xattr_acl->a_other_mask); + if (acl->a_other_mask & ~RICHACE_VALID_MASK) + goto fail_einval; + + richacl_for_each_entry(ace, acl) { + ace->e_type = le16_to_cpu(xattr_ace->e_type); + ace->e_flags = le16_to_cpu(xattr_ace->e_flags); + ace->e_mask = le32_to_cpu(xattr_ace->e_mask); + + if (ace->e_flags & ~RICHACE_VALID_FLAGS) + goto fail_einval; + if (ace->e_flags & RICHACE_SPECIAL_WHO) { + ace->e_id.special = le32_to_cpu(xattr_ace->e_id); + if (ace->e_id.special > RICHACE_EVERYONE_SPECIAL_ID) + goto fail_einval; + } else if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) { + u32 id = le32_to_cpu(xattr_ace->e_id); + + ace->e_id.gid = make_kgid(user_ns, id); + if (!gid_valid(ace->e_id.gid)) + goto fail_einval; + } else { + u32 id = le32_to_cpu(xattr_ace->e_id); + + ace->e_id.uid = make_kuid(user_ns, id); + if (!uid_valid(ace->e_id.uid)) + goto fail_einval; + } + if (ace->e_type > RICHACE_ACCESS_DENIED_ACE_TYPE || + (ace->e_mask & ~RICHACE_VALID_MASK)) + goto fail_einval; + + xattr_ace++; + } + + return acl; + +fail_einval: + richacl_put(acl); + return ERR_PTR(-EINVAL); +} +EXPORT_SYMBOL_GPL(richacl_from_xattr); + +/** + * richacl_xattr_size - compute the size of the xattr representation of @acl + */ +size_t +richacl_xattr_size(const struct richacl *acl) +{ + size_t size = sizeof(struct richacl_xattr); + + size += sizeof(struct richace_xattr) * acl->a_count; + return size; +} +EXPORT_SYMBOL_GPL(richacl_xattr_size); + +/** + * richacl_to_xattr - convert @acl into its xattr representation + * @acl: the richacl to convert + * @buffer: buffer for the result + * @size: size of @buffer + */ +int +richacl_to_xattr(struct user_namespace *user_ns, + const struct richacl *acl, void *buffer, size_t size) +{ + struct richacl_xattr *xattr_acl = buffer; + struct richace_xattr *xattr_ace; + const struct richace *ace; + size_t real_size; + + real_size = richacl_xattr_size(acl); + if (!buffer) + return real_size; + if (real_size > size) + return -ERANGE; + + xattr_acl->a_version = RICHACL_XATTR_VERSION; + xattr_acl->a_flags = acl->a_flags; + xattr_acl->a_count = cpu_to_le16(acl->a_count); + + xattr_acl->a_owner_mask = cpu_to_le32(acl->a_owner_mask); + xattr_acl->a_group_mask = cpu_to_le32(acl->a_group_mask); + xattr_acl->a_other_mask = cpu_to_le32(acl->a_other_mask); + + xattr_ace = (void *)(xattr_acl + 1); + richacl_for_each_entry(ace, acl) { + xattr_ace->e_type = cpu_to_le16(ace->e_type); + xattr_ace->e_flags = cpu_to_le16(ace->e_flags); + xattr_ace->e_mask = cpu_to_le32(ace->e_mask); + if (ace->e_flags & RICHACE_SPECIAL_WHO) + xattr_ace->e_id = cpu_to_le32(ace->e_id.special); + else if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) + xattr_ace->e_id = + cpu_to_le32(from_kgid(user_ns, ace->e_id.gid)); + else + xattr_ace->e_id = + cpu_to_le32(from_kuid(user_ns, ace->e_id.uid)); + xattr_ace++; + } + return real_size; +} +EXPORT_SYMBOL_GPL(richacl_to_xattr); + +/* + * Fix up the uids and gids in richacl extended attributes in place. + */ +static void richacl_fix_xattr_userns( + struct user_namespace *to, struct user_namespace *from, + void *value, size_t size) +{ + struct richacl_xattr *xattr_acl = value; + struct richace_xattr *xattr_ace = + (struct richace_xattr *)(xattr_acl + 1); + unsigned int count; + + if (!value) + return; + if (size < sizeof(*xattr_acl)) + return; + if (xattr_acl->a_version != cpu_to_le32(RICHACL_XATTR_VERSION)) + return; + size -= sizeof(*xattr_acl); + if (size % sizeof(*xattr_ace)) + return; + count = size / sizeof(*xattr_ace); + for (; count; count--, xattr_ace++) { + if (xattr_ace->e_flags & cpu_to_le16(RICHACE_SPECIAL_WHO)) + continue; + if (xattr_ace->e_flags & + cpu_to_le16(RICHACE_IDENTIFIER_GROUP)) { + u32 id = le32_to_cpu(xattr_ace->e_id); + kgid_t gid = make_kgid(from, id); + + xattr_ace->e_id = cpu_to_le32(from_kgid(to, gid)); + } else { + u32 id = le32_to_cpu(xattr_ace->e_id); + kuid_t uid = make_kuid(from, id); + + xattr_ace->e_id = cpu_to_le32(from_kuid(to, uid)); + } + } +} + +void richacl_fix_xattr_from_user(void *value, size_t size) +{ + struct user_namespace *user_ns = current_user_ns(); + + if (user_ns == &init_user_ns) + return; + richacl_fix_xattr_userns(&init_user_ns, user_ns, value, size); +} + +void richacl_fix_xattr_to_user(void *value, size_t size) +{ + struct user_namespace *user_ns = current_user_ns(); + + if (user_ns == &init_user_ns) + return; + richacl_fix_xattr_userns(user_ns, &init_user_ns, value, size); +} diff --git a/fs/xattr.c b/fs/xattr.c index 072fee1..f2313c6 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -21,6 +21,7 @@ #include #include #include +#include #include @@ -314,6 +315,18 @@ out: } EXPORT_SYMBOL_GPL(vfs_removexattr); +static void +fix_xattr_from_user(const char *kname, void *kvalue, size_t size) +{ + if (strncmp(kname, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) + return; + kname += XATTR_SYSTEM_PREFIX_LEN; + if (!strcmp(kname, XATTR_POSIX_ACL_ACCESS) || + !strcmp(kname, XATTR_POSIX_ACL_DEFAULT)) + posix_acl_fix_xattr_from_user(kvalue, size); + else if (!strcmp(kname, XATTR_RICHACL)) + richacl_fix_xattr_from_user(kvalue, size); +} /* * Extended attribute SET operations @@ -350,9 +363,7 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value, error = -EFAULT; goto out; } - if ((strcmp(kname, XATTR_NAME_POSIX_ACL_ACCESS) == 0) || - (strcmp(kname, XATTR_NAME_POSIX_ACL_DEFAULT) == 0)) - posix_acl_fix_xattr_from_user(kvalue, size); + fix_xattr_from_user(kname, kvalue, size); } error = vfs_setxattr(d, kname, kvalue, size, flags); @@ -419,6 +430,19 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name, return error; } +static void +fix_xattr_to_user(const char *kname, void *kvalue, size_t size) +{ + if (strncmp(kname, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) + return; + kname += XATTR_SYSTEM_PREFIX_LEN; + if (!strcmp(kname, XATTR_POSIX_ACL_ACCESS) || + !strcmp(kname, XATTR_POSIX_ACL_DEFAULT)) + posix_acl_fix_xattr_to_user(kvalue, size); + else if (!strcmp(kname, XATTR_RICHACL)) + richacl_fix_xattr_to_user(kvalue, size); +} + /* * Extended attribute GET operations */ @@ -451,9 +475,7 @@ getxattr(struct dentry *d, const char __user *name, void __user *value, error = vfs_getxattr(d, kname, kvalue, size); if (error > 0) { - if ((strcmp(kname, XATTR_NAME_POSIX_ACL_ACCESS) == 0) || - (strcmp(kname, XATTR_NAME_POSIX_ACL_DEFAULT) == 0)) - posix_acl_fix_xattr_to_user(kvalue, size); + fix_xattr_to_user(kname, kvalue, size); if (size && copy_to_user(value, kvalue, error)) error = -EFAULT; } else if (error == -ERANGE && size >= XATTR_SIZE_MAX) { diff --git a/include/linux/richacl_xattr.h b/include/linux/richacl_xattr.h new file mode 100644 index 0000000..7fc5ca8 --- /dev/null +++ b/include/linux/richacl_xattr.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#ifndef __RICHACL_XATTR_H +#define __RICHACL_XATTR_H + +#include +#include + +extern struct richacl *richacl_from_xattr(struct user_namespace *, const void *, + size_t); +extern size_t richacl_xattr_size(const struct richacl *); +extern int richacl_to_xattr(struct user_namespace *, const struct richacl *, + void *, size_t); + +#ifdef CONFIG_FS_RICHACL +extern void richacl_fix_xattr_from_user(void *, size_t); +extern void richacl_fix_xattr_to_user(void *, size_t); +#else +static inline void richacl_fix_xattr_from_user(void *value, size_t size) +{ +} + +static inline void richacl_fix_xattr_to_user(void *value, size_t size) +{ +} +#endif + +#endif /* __RICHACL_XATTR_H */ diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild index 8c82010..18ad070 100644 --- a/include/uapi/linux/Kbuild +++ b/include/uapi/linux/Kbuild @@ -349,6 +349,7 @@ header-y += reiserfs_fs.h header-y += reiserfs_xattr.h header-y += resource.h header-y += richacl.h +header-y += richacl_xattr.h header-y += rfkill.h header-y += romfs_fs.h header-y += rose.h diff --git a/include/uapi/linux/richacl_xattr.h b/include/uapi/linux/richacl_xattr.h new file mode 100644 index 0000000..5178ca6 --- /dev/null +++ b/include/uapi/linux/richacl_xattr.h @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + */ + +#ifndef __UAPI_RICHACL_XATTR_H +#define __UAPI_RICHACL_XATTR_H + +#include +#include + +struct richace_xattr { + __le16 e_type; + __le16 e_flags; + __le32 e_mask; + __le32 e_id; +}; + +struct richacl_xattr { + unsigned char a_version; + unsigned char a_flags; + __le16 a_count; + __le32 a_owner_mask; + __le32 a_group_mask; + __le32 a_other_mask; +}; + +#define RICHACL_XATTR_VERSION 0 +#define RICHACL_XATTR_MAX_COUNT \ + ((XATTR_SIZE_MAX - sizeof(struct richacl_xattr)) / \ + sizeof(struct richace_xattr)) + +#endif /* __UAPI_RICHACL_XATTR_H */ diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h index 1590c49..1996903 100644 --- a/include/uapi/linux/xattr.h +++ b/include/uapi/linux/xattr.h @@ -73,5 +73,7 @@ #define XATTR_POSIX_ACL_DEFAULT "posix_acl_default" #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT +#define XATTR_RICHACL "richacl" +#define XATTR_NAME_RICHACL XATTR_SYSTEM_PREFIX XATTR_RICHACL #endif /* _UAPI_LINUX_XATTR_H */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:19:42 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 50B1A29E30 for ; Tue, 3 Nov 2015 09:19:42 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id E462CAC002 for ; Tue, 3 Nov 2015 07:19:41 -0800 (PST) X-ASG-Debug-ID: 1446563980-04bdf033091fc9f0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id hz8QUPQEMqcmipM1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:19:40 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 92E8A8F4E6; Tue, 3 Nov 2015 15:19:40 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZi029477; Tue, 3 Nov 2015 10:19:34 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 18/51] richacl: Add richacl xattr handler Date: Tue, 3 Nov 2015 16:16:54 +0100 X-ASG-Orig-Subj: [PATCH v13 18/51] richacl: Add richacl xattr handler Message-Id: <1446563847-14005-19-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563980 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Add richacl xattr handler implementing the xattr operations based on the get_richacl and set_richacl inode operations. Signed-off-by: Andreas Gruenbacher --- fs/richacl_xattr.c | 78 +++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl_xattr.h | 2 ++ 2 files changed, 80 insertions(+) diff --git a/fs/richacl_xattr.c b/fs/richacl_xattr.c index 38473b6..767c1f7 100644 --- a/fs/richacl_xattr.c +++ b/fs/richacl_xattr.c @@ -18,7 +18,9 @@ #include #include #include +#include #include +#include MODULE_LICENSE("GPL"); @@ -161,6 +163,82 @@ richacl_to_xattr(struct user_namespace *user_ns, } EXPORT_SYMBOL_GPL(richacl_to_xattr); +static size_t +richacl_xattr_list(struct dentry *dentry, char *list, size_t list_len, + const char *name, size_t name_len, int handler_flags) +{ + const size_t size = sizeof(XATTR_NAME_RICHACL); + + if (!IS_RICHACL(d_backing_inode(dentry))) + return 0; + if (list && size <= list_len) + memcpy(list, XATTR_NAME_RICHACL, size); + return size; +} + +static int +richacl_xattr_get(struct dentry *dentry, const char *name, void *buffer, + size_t buffer_size, int handler_flags) +{ + struct inode *inode = d_backing_inode(dentry); + struct richacl *acl; + int error; + + if (strcmp(name, "") != 0) + return -EINVAL; + if (!IS_RICHACL(inode)) + return EOPNOTSUPP; + if (S_ISLNK(inode->i_mode)) + return -EOPNOTSUPP; + acl = get_richacl(inode); + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl == NULL) + return -ENODATA; + error = richacl_to_xattr(&init_user_ns, acl, buffer, buffer_size); + richacl_put(acl); + return error; +} + +static int +richacl_xattr_set(struct dentry *dentry, const char *name, + const void *value, size_t size, int flags, int handler_flags) +{ + struct inode *inode = d_backing_inode(dentry); + struct richacl *acl = NULL; + int ret; + + if (strcmp(name, "") != 0) + return -EINVAL; + if (!IS_RICHACL(inode)) + return -EOPNOTSUPP; + if (!inode->i_op->set_richacl) + return -EOPNOTSUPP; + + if (!uid_eq(current_fsuid(), inode->i_uid) && + inode_permission(inode, MAY_CHMOD) && + !capable(CAP_FOWNER)) + return -EPERM; + + if (value) { + acl = richacl_from_xattr(&init_user_ns, value, size); + if (IS_ERR(acl)) + return PTR_ERR(acl); + } + + ret = inode->i_op->set_richacl(inode, acl); + richacl_put(acl); + return ret; +} + +struct xattr_handler richacl_xattr_handler = { + .prefix = XATTR_NAME_RICHACL, + .list = richacl_xattr_list, + .get = richacl_xattr_get, + .set = richacl_xattr_set, +}; +EXPORT_SYMBOL(richacl_xattr_handler); + /* * Fix up the uids and gids in richacl extended attributes in place. */ diff --git a/include/linux/richacl_xattr.h b/include/linux/richacl_xattr.h index 7fc5ca8..45ec27a 100644 --- a/include/linux/richacl_xattr.h +++ b/include/linux/richacl_xattr.h @@ -39,4 +39,6 @@ static inline void richacl_fix_xattr_to_user(void *value, size_t size) } #endif +extern struct xattr_handler richacl_xattr_handler; + #endif /* __RICHACL_XATTR_H */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:19:49 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 470C329E1E for ; Tue, 3 Nov 2015 09:19:49 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 16B558F8033 for ; Tue, 3 Nov 2015 07:19:49 -0800 (PST) X-ASG-Debug-ID: 1446563987-04bdf0330a1fca10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id VgWJkRpYlrVZGcoH (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:19:47 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 82F598F4FB; Tue, 3 Nov 2015 15:19:47 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZj029477; Tue, 3 Nov 2015 10:19:41 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 19/51] vfs: Add richacl permission checking Date: Tue, 3 Nov 2015 16:16:55 +0100 X-ASG-Orig-Subj: [PATCH v13 19/51] vfs: Add richacl permission checking Message-Id: <1446563847-14005-20-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563987 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hook the richacl permission checking function into the vfs. Signed-off-by: Andreas Gruenbacher --- fs/namei.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++-- fs/posix_acl.c | 6 +++--- 2 files changed, 52 insertions(+), 5 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 2eab19e..3822b5e 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include "internal.h" @@ -255,7 +256,40 @@ void putname(struct filename *name) __putname(name); } -static int check_acl(struct inode *inode, int mask) +static int check_richacl(struct inode *inode, int mask) +{ +#ifdef CONFIG_FS_RICHACL + struct richacl *acl; + + if (mask & MAY_NOT_BLOCK) { + acl = get_cached_richacl_rcu(inode); + if (!acl) + goto no_acl; + /* no ->get_richacl() calls in RCU mode... */ + if (acl == ACL_NOT_CACHED) + return -ECHILD; + return richacl_permission(inode, acl, mask & ~MAY_NOT_BLOCK); + } + + acl = get_richacl(inode); + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl) { + int error = richacl_permission(inode, acl, mask); + richacl_put(acl); + return error; + } +no_acl: +#endif + if (mask & (MAY_DELETE_SELF | MAY_TAKE_OWNERSHIP | + MAY_CHMOD | MAY_SET_TIMES)) { + /* File permission bits cannot grant this. */ + return -EACCES; + } + return -EAGAIN; +} + +static int check_posix_acl(struct inode *inode, int mask) { #ifdef CONFIG_FS_POSIX_ACL struct posix_acl *acl; @@ -290,11 +324,24 @@ static int acl_permission_check(struct inode *inode, int mask) { unsigned int mode = inode->i_mode; + /* + * With POSIX ACLs, the (mode & S_IRWXU) bits exactly match the owner + * permissions, and we can skip checking posix acls for the owner. + * With richacls, the owner may be granted fewer permissions than the + * mode bits seem to suggest (for example, append but not write), and + * we always need to check the richacl. + */ + + if (IS_RICHACL(inode)) { + int error = check_richacl(inode, mask); + if (error != -EAGAIN) + return error; + } if (likely(uid_eq(current_fsuid(), inode->i_uid))) mode >>= 6; else { if (IS_POSIXACL(inode) && (mode & S_IRWXG)) { - int error = check_acl(inode, mask); + int error = check_posix_acl(inode, mask); if (error != -EAGAIN) return error; } diff --git a/fs/posix_acl.c b/fs/posix_acl.c index 1d766a5..3459bd5 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -100,13 +100,13 @@ struct posix_acl *get_acl(struct inode *inode, int type) { struct posix_acl *acl; + if (!IS_POSIXACL(inode)) + return NULL; + acl = get_cached_acl(inode, type); if (acl != ACL_NOT_CACHED) return acl; - if (!IS_POSIXACL(inode)) - return NULL; - /* * A filesystem can force a ACL callback by just never filling the * ACL cache. But normally you'd fill the cache either at inode -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:19:58 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 41F1029E1E for ; Tue, 3 Nov 2015 09:19:58 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id ABF98AC004 for ; Tue, 3 Nov 2015 07:19:57 -0800 (PST) X-ASG-Debug-ID: 1446563995-04cb6c7b871ddbd0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id SH9stbyQpNu7xyP7 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:19:55 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id D8DCD8E69D; Tue, 3 Nov 2015 15:19:54 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZk029477; Tue, 3 Nov 2015 10:19:48 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: "Aneesh Kumar K.V" , Andreas Gruenbacher Subject: [PATCH v13 20/51] ext4: Add richacl support Date: Tue, 3 Nov 2015 16:16:56 +0100 X-ASG-Orig-Subj: [PATCH v13 20/51] ext4: Add richacl support Message-Id: <1446563847-14005-21-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446563995 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 From: "Aneesh Kumar K.V" Support the richacl permission model in ext4. The richacls are stored in "system.richacl" xattrs. Richacls need to be enabled by tune2fs or at file system create time. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Andreas Gruenbacher --- fs/ext4/Kconfig | 11 +++++ fs/ext4/Makefile | 1 + fs/ext4/file.c | 3 ++ fs/ext4/ialloc.c | 11 ++++- fs/ext4/inode.c | 12 ++++- fs/ext4/namei.c | 5 ++ fs/ext4/richacl.c | 141 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ fs/ext4/richacl.h | 40 ++++++++++++++++ fs/ext4/xattr.c | 7 +++ 9 files changed, 228 insertions(+), 3 deletions(-) create mode 100644 fs/ext4/richacl.c create mode 100644 fs/ext4/richacl.h diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig index b46e9fc..65c5230 100644 --- a/fs/ext4/Kconfig +++ b/fs/ext4/Kconfig @@ -22,6 +22,17 @@ config EXT3_FS_POSIX_ACL This config option is here only for backward compatibility. ext3 filesystem is now handled by the ext4 driver. +config EXT4_FS_RICHACL + bool "Ext4 Rich Access Control Lists (EXPERIMENTAL)" + depends on EXT4_FS + select FS_RICHACL + help + Richacls are an implementation of NFSv4 ACLs, extended by file masks + to cleanly integrate into the POSIX file permission model. To learn + more about them, see http://www.bestbits.at/richacl/. + + If you don't know what Richacls are, say N. + config EXT3_FS_SECURITY bool "Ext3 Security Labels" depends on EXT3_FS diff --git a/fs/ext4/Makefile b/fs/ext4/Makefile index 75285ea..ea0d539 100644 --- a/fs/ext4/Makefile +++ b/fs/ext4/Makefile @@ -14,3 +14,4 @@ ext4-$(CONFIG_EXT4_FS_POSIX_ACL) += acl.o ext4-$(CONFIG_EXT4_FS_SECURITY) += xattr_security.o ext4-$(CONFIG_EXT4_FS_ENCRYPTION) += crypto_policy.o crypto.o \ crypto_key.o crypto_fname.o +ext4-$(CONFIG_EXT4_FS_RICHACL) += richacl.o diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 113837e..a03b4a5 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -30,6 +30,7 @@ #include "ext4_jbd2.h" #include "xattr.h" #include "acl.h" +#include "richacl.h" /* * Called when an inode is released. Note that this is different @@ -719,6 +720,8 @@ const struct inode_operations ext4_file_inode_operations = { .removexattr = generic_removexattr, .get_acl = ext4_get_acl, .set_acl = ext4_set_acl, + .get_richacl = ext4_get_richacl, + .set_richacl = ext4_set_richacl, .fiemap = ext4_fiemap, }; diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 619bfc1..9657b3a 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -27,6 +27,7 @@ #include "ext4_jbd2.h" #include "xattr.h" #include "acl.h" +#include "richacl.h" #include @@ -697,6 +698,14 @@ out: return ret; } +static inline int +ext4_new_acl(handle_t *handle, struct inode *inode, struct inode *dir) +{ + if (IS_RICHACL(dir)) + return ext4_init_richacl(handle, inode, dir); + return ext4_init_acl(handle, inode, dir); +} + /* * There are two policies for allocating an inode. If the new inode is * a directory, then a forward search is made for a block group with both @@ -1052,7 +1061,7 @@ got: if (err) goto fail_drop; - err = ext4_init_acl(handle, inode, dir); + err = ext4_new_acl(handle, inode, dir); if (err) goto fail_free_drop; diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 612fbcf..647f3c3 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -42,6 +42,7 @@ #include "xattr.h" #include "acl.h" #include "truncate.h" +#include "richacl.h" #include @@ -4638,6 +4639,14 @@ static void ext4_wait_for_tail_page_commit(struct inode *inode) } } +static inline int +ext4_acl_chmod(struct inode *inode, umode_t mode) +{ + if (IS_RICHACL(inode)) + return richacl_chmod(inode, inode->i_mode); + return posix_acl_chmod(inode, inode->i_mode); +} + /* * ext4_setattr() * @@ -4806,8 +4815,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr) ext4_orphan_del(NULL, inode); if (!rc && (ia_valid & ATTR_MODE)) - rc = posix_acl_chmod(inode, inode->i_mode); - + rc = ext4_acl_chmod(inode, inode->i_mode); err_out: ext4_std_error(inode->i_sb, error); if (!error) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 9f61e76..9b6e8b9 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -38,6 +38,7 @@ #include "xattr.h" #include "acl.h" +#include "richacl.h" #include /* @@ -3854,6 +3855,8 @@ const struct inode_operations ext4_dir_inode_operations = { .removexattr = generic_removexattr, .get_acl = ext4_get_acl, .set_acl = ext4_set_acl, + .get_richacl = ext4_get_richacl, + .set_richacl = ext4_set_richacl, .fiemap = ext4_fiemap, }; @@ -3865,4 +3868,6 @@ const struct inode_operations ext4_special_inode_operations = { .removexattr = generic_removexattr, .get_acl = ext4_get_acl, .set_acl = ext4_set_acl, + .get_richacl = ext4_get_richacl, + .set_richacl = ext4_set_richacl, }; diff --git a/fs/ext4/richacl.c b/fs/ext4/richacl.c new file mode 100644 index 0000000..906d048 --- /dev/null +++ b/fs/ext4/richacl.c @@ -0,0 +1,141 @@ +/* + * Copyright IBM Corporation, 2010 + * Copyright (C) 2015 Red Hat, Inc. + * Author: Aneesh Kumar K.V , + * Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2.1 of the GNU Lesser General Public License + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + */ + +#include +#include +#include + +#include "ext4.h" +#include "ext4_jbd2.h" +#include "xattr.h" +#include "acl.h" +#include "richacl.h" + +struct richacl * +ext4_get_richacl(struct inode *inode) +{ + const int name_index = EXT4_XATTR_INDEX_RICHACL; + void *value = NULL; + struct richacl *acl = NULL; + int retval; + + retval = ext4_xattr_get(inode, name_index, "", NULL, 0); + if (retval > 0) { + value = kmalloc(retval, GFP_NOFS); + if (!value) + return ERR_PTR(-ENOMEM); + retval = ext4_xattr_get(inode, name_index, "", value, retval); + } + if (retval > 0) { + acl = richacl_from_xattr(&init_user_ns, value, retval); + if (acl == ERR_PTR(-EINVAL)) + acl = ERR_PTR(-EIO); + } else if (retval != -ENODATA && retval != -ENOSYS) + acl = ERR_PTR(retval); + kfree(value); + + if (!IS_ERR(acl)) + set_cached_richacl(inode, acl); + + return acl; +} + +static int +__ext4_remove_richacl(handle_t *handle, struct inode *inode) +{ + const int name_index = EXT4_XATTR_INDEX_RICHACL; + int retval; + + retval = ext4_xattr_set_handle(handle, inode, name_index, "", + NULL, 0, 0); + if (!retval) + set_cached_richacl(inode, NULL); + return retval; +} + +static int +__ext4_set_richacl(handle_t *handle, struct inode *inode, struct richacl *acl) +{ + const int name_index = EXT4_XATTR_INDEX_RICHACL; + umode_t mode = inode->i_mode; + int retval, size; + void *value; + + if (richacl_equiv_mode(acl, &mode) == 0) { + inode->i_ctime = ext4_current_time(inode); + inode->i_mode = mode; + ext4_mark_inode_dirty(handle, inode); + return __ext4_remove_richacl(handle, inode); + } + + mode &= ~S_IRWXUGO; + mode |= richacl_masks_to_mode(acl); + + size = richacl_xattr_size(acl); + value = kmalloc(size, GFP_NOFS); + if (!value) + return -ENOMEM; + richacl_to_xattr(&init_user_ns, acl, value, size); + inode->i_mode = mode; + retval = ext4_xattr_set_handle(handle, inode, name_index, "", + value, size, 0); + kfree(value); + if (retval) + return retval; + + set_cached_richacl(inode, acl); + + return 0; +} + +int +ext4_set_richacl(struct inode *inode, struct richacl *acl) +{ + handle_t *handle; + int retval, retries = 0; + +retry: + handle = ext4_journal_start(inode, EXT4_HT_XATTR, + ext4_jbd2_credits_xattr(inode)); + if (IS_ERR(handle)) + return PTR_ERR(handle); + + if (acl) + retval = __ext4_set_richacl(handle, inode, acl); + else + retval = __ext4_remove_richacl(handle, inode); + + ext4_journal_stop(handle); + if (retval == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) + goto retry; + return retval; +} + +int +ext4_init_richacl(handle_t *handle, struct inode *inode, struct inode *dir) +{ + struct richacl *acl = richacl_create(&inode->i_mode, dir); + int error; + + error = PTR_ERR(acl); + if (IS_ERR(acl)) + return error; + if (acl) { + error = __ext4_set_richacl(handle, inode, acl); + richacl_put(acl); + } + return error; +} diff --git a/fs/ext4/richacl.h b/fs/ext4/richacl.h new file mode 100644 index 0000000..6fe9a92 --- /dev/null +++ b/fs/ext4/richacl.h @@ -0,0 +1,40 @@ +/* + * Copyright IBM Corporation, 2010 + * Copyright (C) 2015 Red Hat, Inc. + * Author Aneesh Kumar K.V + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2.1 of the GNU Lesser General Public License + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + */ + +#ifndef __FS_EXT4_RICHACL_H +#define __FS_EXT4_RICHACL_H + +#include + +#ifdef CONFIG_EXT4_FS_RICHACL + +extern struct richacl *ext4_get_richacl(struct inode *); +extern int ext4_set_richacl(struct inode *, struct richacl *); + +extern int ext4_init_richacl(handle_t *, struct inode *, struct inode *); + +#else /* CONFIG_EXT4_FS_RICHACL */ + +#define ext4_get_richacl NULL +#define ext4_set_richacl NULL + +static inline int +ext4_init_richacl(handle_t *handle, struct inode *inode, struct inode *dir) +{ + return 0; +} + +#endif /* CONFIG_EXT4_FS_RICHACL */ +#endif /* __FS_EXT4_RICHACL_H */ diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 16e28c0..4d79adb 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -55,6 +55,7 @@ #include #include #include +#include #include "ext4_jbd2.h" #include "ext4.h" #include "xattr.h" @@ -99,6 +100,9 @@ static const struct xattr_handler *ext4_xattr_handler_map[] = { #ifdef CONFIG_EXT4_FS_SECURITY [EXT4_XATTR_INDEX_SECURITY] = &ext4_xattr_security_handler, #endif +#ifdef CONFIG_EXT4_FS_RICHACL + [EXT4_XATTR_INDEX_RICHACL] = &richacl_xattr_handler, +#endif }; const struct xattr_handler *ext4_xattr_handlers[] = { @@ -111,6 +115,9 @@ const struct xattr_handler *ext4_xattr_handlers[] = { #ifdef CONFIG_EXT4_FS_SECURITY &ext4_xattr_security_handler, #endif +#ifdef CONFIG_EXT4_FS_RICHACL + &richacl_xattr_handler, +#endif NULL }; -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:20:05 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BEB1629E1E for ; Tue, 3 Nov 2015 09:20:05 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 37B2AAC002 for ; Tue, 3 Nov 2015 07:20:05 -0800 (PST) X-ASG-Debug-ID: 1446564002-04cb6c7b841ddbe0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id eyhB4CGtdkOFg7C4 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:20:03 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 42374AB8; Tue, 3 Nov 2015 15:20:02 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZl029477; Tue, 3 Nov 2015 10:19:55 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: "Aneesh Kumar K.V" , Andreas Gruenbacher Subject: [PATCH v13 21/51] ext4: Add richacl feature flag Date: Tue, 3 Nov 2015 16:16:57 +0100 X-ASG-Orig-Subj: [PATCH v13 21/51] ext4: Add richacl feature flag Message-Id: <1446563847-14005-22-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564002 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 From: "Aneesh Kumar K.V" This feature flag selects richacl instead of posix acl support on the file system. In addition, the "acl" mount option is needed for enabling either of the two kinds of acls. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Andreas Gruenbacher --- fs/ext4/ext4.h | 6 ++++-- fs/ext4/super.c | 49 ++++++++++++++++++++++++++++++++++++++++--------- 2 files changed, 44 insertions(+), 11 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index fd1f28b..b97a3b1 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -991,7 +991,7 @@ struct ext4_inode_info { #define EXT4_MOUNT_UPDATE_JOURNAL 0x01000 /* Update the journal format */ #define EXT4_MOUNT_NO_UID32 0x02000 /* Disable 32-bit UIDs */ #define EXT4_MOUNT_XATTR_USER 0x04000 /* Extended user attributes */ -#define EXT4_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control Lists */ +#define EXT4_MOUNT_ACL 0x08000 /* Access Control Lists */ #define EXT4_MOUNT_NO_AUTO_DA_ALLOC 0x10000 /* No auto delalloc mapping */ #define EXT4_MOUNT_BARRIER 0x20000 /* Use block barriers */ #define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */ @@ -1582,6 +1582,7 @@ static inline int ext4_encrypted_inode(struct inode *inode) #define EXT4_FEATURE_INCOMPAT_LARGEDIR 0x4000 /* >2GB or 3-lvl htree */ #define EXT4_FEATURE_INCOMPAT_INLINE_DATA 0x8000 /* data in inode */ #define EXT4_FEATURE_INCOMPAT_ENCRYPT 0x10000 +#define EXT4_FEATURE_INCOMPAT_RICHACL 0x20000 #define EXT2_FEATURE_COMPAT_SUPP EXT4_FEATURE_COMPAT_EXT_ATTR #define EXT2_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \ @@ -1607,7 +1608,8 @@ static inline int ext4_encrypted_inode(struct inode *inode) EXT4_FEATURE_INCOMPAT_FLEX_BG| \ EXT4_FEATURE_INCOMPAT_MMP | \ EXT4_FEATURE_INCOMPAT_INLINE_DATA | \ - EXT4_FEATURE_INCOMPAT_ENCRYPT) + EXT4_FEATURE_INCOMPAT_ENCRYPT | \ + EXT4_FEATURE_INCOMPAT_RICHACL) #define EXT4_FEATURE_RO_COMPAT_SUPP (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \ EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \ EXT4_FEATURE_RO_COMPAT_GDT_CSUM| \ diff --git a/fs/ext4/super.c b/fs/ext4/super.c index a63c7b0..7457ea8 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1270,6 +1270,28 @@ static ext4_fsblk_t get_sb_block(void **data) return sb_block; } +static int enable_acl(struct super_block *sb) +{ + sb->s_flags &= ~(MS_POSIXACL | MS_RICHACL); + if (test_opt(sb, ACL)) { + if (EXT4_HAS_INCOMPAT_FEATURE(sb, + EXT4_FEATURE_INCOMPAT_RICHACL)) { +#ifdef CONFIG_EXT4_FS_RICHACL + sb->s_flags |= MS_RICHACL; +#else + return -EOPNOTSUPP; +#endif + } else { +#ifdef CONFIG_EXT4_FS_POSIX_ACL + sb->s_flags |= MS_POSIXACL; +#else + return -EOPNOTSUPP; +#endif + } + } + return 0; +} + #define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3)) static char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n" "Contact linux-ext4@vger.kernel.org if you think we should keep it.\n"; @@ -1416,9 +1438,9 @@ static const struct mount_opts { MOPT_NO_EXT2 | MOPT_DATAJ}, {Opt_user_xattr, EXT4_MOUNT_XATTR_USER, MOPT_SET}, {Opt_nouser_xattr, EXT4_MOUNT_XATTR_USER, MOPT_CLEAR}, -#ifdef CONFIG_EXT4_FS_POSIX_ACL - {Opt_acl, EXT4_MOUNT_POSIX_ACL, MOPT_SET}, - {Opt_noacl, EXT4_MOUNT_POSIX_ACL, MOPT_CLEAR}, +#if defined(CONFIG_EXT4_FS_POSIX_ACL) || defined(CONFIG_EXT4_FS_RICHACL) + {Opt_acl, EXT4_MOUNT_ACL, MOPT_SET}, + {Opt_noacl, EXT4_MOUNT_ACL, MOPT_CLEAR}, #else {Opt_acl, 0, MOPT_NOSUPPORT}, {Opt_noacl, 0, MOPT_NOSUPPORT}, @@ -1466,6 +1488,13 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, #endif switch (token) { case Opt_noacl: +#ifdef CONFIG_EXT4_FS_RICHACL + if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RICHACL)) { + ext4_msg(sb, KERN_ERR, "Mount option \"%s\" incompatible " + "with richacl feature", opt); + return -1; + } +#endif case Opt_nouser_xattr: ext4_msg(sb, KERN_WARNING, deprecated_msg, opt, "3.5"); break; @@ -3576,8 +3605,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) set_opt(sb, NO_UID32); /* xattr user namespace & acls are now defaulted on */ set_opt(sb, XATTR_USER); -#ifdef CONFIG_EXT4_FS_POSIX_ACL - set_opt(sb, POSIX_ACL); +#if defined(CONFIG_EXT4_FS_POSIX_ACL) || defined(CONFIG_EXT4_FS_RICHACL) + set_opt(sb, ACL); #endif /* don't forget to enable journal_csum when metadata_csum is enabled. */ if (ext4_has_metadata_csum(sb)) @@ -3660,8 +3689,9 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) sb->s_iflags |= SB_I_CGROUPWB; } - sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | - (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0); + err = enable_acl(sb); + if (err) + goto failed_mount; if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV && (EXT4_HAS_COMPAT_FEATURE(sb, ~0U) || @@ -4981,8 +5011,9 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED) ext4_abort(sb, "Abort forced by user"); - sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | - (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0); + err = enable_acl(sb); + if (err) + goto restore_opts; es = sbi->s_es; -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:20:11 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5415529E2C for ; Tue, 3 Nov 2015 09:20:11 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id DFB36AC004 for ; Tue, 3 Nov 2015 07:20:10 -0800 (PST) X-ASG-Debug-ID: 1446564009-04cbb0660e1f7cb0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id TOqxQcbX6dZybB7S (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:20:09 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 293468FAA3; Tue, 3 Nov 2015 15:20:09 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZm029477; Tue, 3 Nov 2015 10:20:02 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 22/51] xfs: Fix error path in xfs_get_acl Date: Tue, 3 Nov 2015 16:16:58 +0100 X-ASG-Orig-Subj: [PATCH v13 22/51] xfs: Fix error path in xfs_get_acl Message-Id: <1446563847-14005-23-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564009 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Error codes from xfs_attr_get other than -ENOATTR were not properly reported. Fix that. In addition, the declaration of struct xfs_inode in xfs_acl.h isn't needed. Signed-off-by: Andreas Gruenbacher --- fs/xfs/xfs_acl.c | 1 + fs/xfs/xfs_acl.h | 1 - 2 files changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c index 4b64167..e87fd3f 100644 --- a/fs/xfs/xfs_acl.c +++ b/fs/xfs/xfs_acl.c @@ -160,6 +160,7 @@ xfs_get_acl(struct inode *inode, int type) */ if (error == -ENOATTR) goto out_update_cache; + acl = ERR_PTR(error); goto out; } diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h index 3841b07..9ee0a0d 100644 --- a/fs/xfs/xfs_acl.h +++ b/fs/xfs/xfs_acl.h @@ -20,7 +20,6 @@ struct inode; struct posix_acl; -struct xfs_inode; #ifdef CONFIG_XFS_POSIX_ACL extern struct posix_acl *xfs_get_acl(struct inode *inode, int type); -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:20:19 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 4651C29E3E for ; Tue, 3 Nov 2015 09:20:19 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 355AF304039 for ; Tue, 3 Nov 2015 07:20:19 -0800 (PST) X-ASG-Debug-ID: 1446564016-04cb6c7b871ddc10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 0nsN5vFWcYQCOPGj (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:20:17 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 458EE8F4E6; Tue, 3 Nov 2015 15:20:16 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZn029477; Tue, 3 Nov 2015 10:20:09 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 23/51] xfs: Make xfs_set_mode non-static Date: Tue, 3 Nov 2015 16:16:59 +0100 X-ASG-Orig-Subj: [PATCH v13 23/51] xfs: Make xfs_set_mode non-static Message-Id: <1446563847-14005-24-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564016 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Make xfs_set_mode non-static and move it from xfs_acl.c into xfs_inode.c. Signed-off-by: Andreas Gruenbacher --- fs/xfs/xfs_acl.c | 18 ------------------ fs/xfs/xfs_inode.c | 24 ++++++++++++++++++++++++ fs/xfs/xfs_inode.h | 2 ++ 3 files changed, 26 insertions(+), 18 deletions(-) diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c index e87fd3f..7b03383 100644 --- a/fs/xfs/xfs_acl.c +++ b/fs/xfs/xfs_acl.c @@ -232,24 +232,6 @@ __xfs_set_acl(struct inode *inode, int type, struct posix_acl *acl) } static int -xfs_set_mode(struct inode *inode, umode_t mode) -{ - int error = 0; - - if (mode != inode->i_mode) { - struct iattr iattr; - - iattr.ia_valid = ATTR_MODE | ATTR_CTIME; - iattr.ia_mode = mode; - iattr.ia_ctime = current_fs_time(inode->i_sb); - - error = xfs_setattr_nonsize(XFS_I(inode), &iattr, XFS_ATTR_NOACL); - } - - return error; -} - -static int xfs_acl_exists(struct inode *inode, unsigned char *name) { int len = XFS_ACL_MAX_SIZE(XFS_M(inode->i_sb)); diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index dc40a6d..644fa04 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -3587,3 +3587,27 @@ xfs_iflush_int( corrupt_out: return -EFSCORRUPTED; } + +/* + * Set an inode's file mode. + * + * Called when updating an inode's file mode as part of setting an ACL only. + * The VFS goes through the setattr inode operation instead. + */ +int +xfs_set_mode(struct inode *inode, umode_t mode) +{ + int error = 0; + + if (mode != inode->i_mode) { + struct iattr iattr; + + iattr.ia_valid = ATTR_MODE | ATTR_CTIME; + iattr.ia_mode = mode; + iattr.ia_ctime = current_fs_time(inode->i_sb); + + error = xfs_setattr_nonsize(XFS_I(inode), &iattr, XFS_ATTR_NOACL); + } + + return error; +} diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index ca9e119..7b22db0 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -424,6 +424,8 @@ int xfs_dir_ialloc(struct xfs_trans **, struct xfs_inode *, umode_t, int xfs_droplink(struct xfs_trans *, struct xfs_inode *); int xfs_bumplink(struct xfs_trans *, struct xfs_inode *); +int xfs_set_mode(struct inode *, umode_t); + /* from xfs_file.c */ enum xfs_prealloc_flags { XFS_PREALLOC_SET = (1 << 1), -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:20:26 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 08B6829E2C for ; Tue, 3 Nov 2015 09:20:26 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7776BAC004 for ; Tue, 3 Nov 2015 07:20:25 -0800 (PST) X-ASG-Debug-ID: 1446564023-04cbb0660c1f7cc0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id gq8LGOGcwQKRJHfp (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:20:23 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 2B296AB8; Tue, 3 Nov 2015 15:20:23 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZo029477; Tue, 3 Nov 2015 10:20:16 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 24/51] xfs: Change how listxattr generates synthetic attributes Date: Tue, 3 Nov 2015 16:17:00 +0100 X-ASG-Orig-Subj: [PATCH v13 24/51] xfs: Change how listxattr generates synthetic attributes Message-Id: <1446563847-14005-25-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564023 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Instead of adding the synthesized POSIX ACL attribute names after listing all non-synthesized attributes, generate them immediately when listing the non-synthesized attributes. In addition, merge xfs_xattr_put_listent and xfs_xattr_put_listent_sizes to ensure that the list size is computed correctly; the split version was overestimating the list size for non-root users. Signed-off-by: Andreas Gruenbacher --- fs/xfs/xfs_acl.c | 23 --------- fs/xfs/xfs_acl.h | 4 -- fs/xfs/xfs_xattr.c | 137 +++++++++++++++++++++++------------------------------ 3 files changed, 59 insertions(+), 105 deletions(-) diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c index 7b03383..778a464 100644 --- a/fs/xfs/xfs_acl.c +++ b/fs/xfs/xfs_acl.c @@ -231,29 +231,6 @@ __xfs_set_acl(struct inode *inode, int type, struct posix_acl *acl) return error; } -static int -xfs_acl_exists(struct inode *inode, unsigned char *name) -{ - int len = XFS_ACL_MAX_SIZE(XFS_M(inode->i_sb)); - - return (xfs_attr_get(XFS_I(inode), name, NULL, &len, - ATTR_ROOT|ATTR_KERNOVAL) == 0); -} - -int -posix_acl_access_exists(struct inode *inode) -{ - return xfs_acl_exists(inode, SGI_ACL_FILE); -} - -int -posix_acl_default_exists(struct inode *inode) -{ - if (!S_ISDIR(inode->i_mode)) - return 0; - return xfs_acl_exists(inode, SGI_ACL_DEFAULT); -} - int xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type) { diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h index 9ee0a0d..cf973f5 100644 --- a/fs/xfs/xfs_acl.h +++ b/fs/xfs/xfs_acl.h @@ -24,15 +24,11 @@ struct posix_acl; #ifdef CONFIG_XFS_POSIX_ACL extern struct posix_acl *xfs_get_acl(struct inode *inode, int type); extern int xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type); -extern int posix_acl_access_exists(struct inode *inode); -extern int posix_acl_default_exists(struct inode *inode); #else static inline struct posix_acl *xfs_get_acl(struct inode *inode, int type) { return NULL; } # define xfs_set_acl NULL -# define posix_acl_access_exists(inode) 0 -# define posix_acl_default_exists(inode) 0 #endif /* CONFIG_XFS_POSIX_ACL */ #endif /* __XFS_ACL_H__ */ diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c index c0368151..8428aed 100644 --- a/fs/xfs/xfs_xattr.c +++ b/fs/xfs/xfs_xattr.c @@ -106,47 +106,19 @@ const struct xattr_handler *xfs_xattr_handlers[] = { NULL }; -static unsigned int xfs_xattr_prefix_len(int flags) -{ - if (flags & XFS_ATTR_SECURE) - return sizeof("security"); - else if (flags & XFS_ATTR_ROOT) - return sizeof("trusted"); - else - return sizeof("user"); -} - -static const char *xfs_xattr_prefix(int flags) -{ - if (flags & XFS_ATTR_SECURE) - return xfs_xattr_security_handler.prefix; - else if (flags & XFS_ATTR_ROOT) - return xfs_xattr_trusted_handler.prefix; - else - return xfs_xattr_user_handler.prefix; -} - static int -xfs_xattr_put_listent( +__xfs_xattr_put_listent( struct xfs_attr_list_context *context, - int flags, - unsigned char *name, - int namelen, - int valuelen, - unsigned char *value) + char *prefix, + int prefix_len, + unsigned char *name, + int namelen) { - unsigned int prefix_len = xfs_xattr_prefix_len(flags); char *offset; int arraytop; - ASSERT(context->count >= 0); - - /* - * Only show root namespace entries if we are actually allowed to - * see them. - */ - if ((flags & XFS_ATTR_ROOT) && !capable(CAP_SYS_ADMIN)) - return 0; + if (!context->alist) + goto compute_size; arraytop = context->count + prefix_len + namelen + 1; if (arraytop > context->firstu) { @@ -154,17 +126,19 @@ xfs_xattr_put_listent( return 1; } offset = (char *)context->alist + context->count; - strncpy(offset, xfs_xattr_prefix(flags), prefix_len); + strncpy(offset, prefix, prefix_len); offset += prefix_len; strncpy(offset, (char *)name, namelen); /* real name */ offset += namelen; *offset = '\0'; + +compute_size: context->count += prefix_len + namelen + 1; return 0; } static int -xfs_xattr_put_listent_sizes( +xfs_xattr_put_listent( struct xfs_attr_list_context *context, int flags, unsigned char *name, @@ -172,24 +146,55 @@ xfs_xattr_put_listent_sizes( int valuelen, unsigned char *value) { - context->count += xfs_xattr_prefix_len(flags) + namelen + 1; - return 0; -} + char *prefix; + int prefix_len; -static int -list_one_attr(const char *name, const size_t len, void *data, - size_t size, ssize_t *result) -{ - char *p = data + *result; + ASSERT(context->count >= 0); - *result += len; - if (!size) - return 0; - if (*result > size) - return -ERANGE; + if (flags & XFS_ATTR_ROOT) { +#ifdef CONFIG_XFS_POSIX_ACL + if (namelen == SGI_ACL_FILE_SIZE && + strncmp(name, SGI_ACL_FILE, + SGI_ACL_FILE_SIZE) == 0) { + int ret = __xfs_xattr_put_listent( + context, XATTR_SYSTEM_PREFIX, + XATTR_SYSTEM_PREFIX_LEN, + XATTR_POSIX_ACL_ACCESS, + strlen(XATTR_POSIX_ACL_ACCESS)); + if (ret) + return ret; + } else if (namelen == SGI_ACL_DEFAULT_SIZE && + strncmp(name, SGI_ACL_DEFAULT, + SGI_ACL_DEFAULT_SIZE) == 0) { + int ret = __xfs_xattr_put_listent( + context, XATTR_SYSTEM_PREFIX, + XATTR_SYSTEM_PREFIX_LEN, + XATTR_POSIX_ACL_DEFAULT, + strlen(XATTR_POSIX_ACL_DEFAULT)); + if (ret) + return ret; + } +#endif - strcpy(p, name); - return 0; + /* + * Only show root namespace entries if we are actually allowed to + * see them. + */ + if (!capable(CAP_SYS_ADMIN)) + return 0; + + prefix = XATTR_TRUSTED_PREFIX; + prefix_len = XATTR_TRUSTED_PREFIX_LEN; + } else if (flags & XFS_ATTR_SECURE) { + prefix = XATTR_SECURITY_PREFIX; + prefix_len = XATTR_SECURITY_PREFIX_LEN; + } else { + prefix = XATTR_USER_PREFIX; + prefix_len = XATTR_USER_PREFIX_LEN; + } + + return __xfs_xattr_put_listent(context, prefix, prefix_len, name, + namelen); } ssize_t @@ -198,7 +203,6 @@ xfs_vn_listxattr(struct dentry *dentry, char *data, size_t size) struct xfs_attr_list_context context; struct attrlist_cursor_kern cursor = { 0 }; struct inode *inode = d_inode(dentry); - int error; /* * First read the regular on-disk attributes. @@ -207,37 +211,14 @@ xfs_vn_listxattr(struct dentry *dentry, char *data, size_t size) context.dp = XFS_I(inode); context.cursor = &cursor; context.resynch = 1; - context.alist = data; + context.alist = size ? data : NULL; context.bufsize = size; context.firstu = context.bufsize; - - if (size) - context.put_listent = xfs_xattr_put_listent; - else - context.put_listent = xfs_xattr_put_listent_sizes; + context.put_listent = xfs_xattr_put_listent; xfs_attr_list_int(&context); if (context.count < 0) return -ERANGE; - /* - * Then add the two synthetic ACL attributes. - */ - if (posix_acl_access_exists(inode)) { - error = list_one_attr(POSIX_ACL_XATTR_ACCESS, - strlen(POSIX_ACL_XATTR_ACCESS) + 1, - data, size, &context.count); - if (error) - return error; - } - - if (posix_acl_default_exists(inode)) { - error = list_one_attr(POSIX_ACL_XATTR_DEFAULT, - strlen(POSIX_ACL_XATTR_DEFAULT) + 1, - data, size, &context.count); - if (error) - return error; - } - return context.count; } -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:20:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4A72129E2C for ; Tue, 3 Nov 2015 09:20:33 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 37CC38F8033 for ; Tue, 3 Nov 2015 07:20:33 -0800 (PST) X-ASG-Debug-ID: 1446564030-04cbb0660f1f7ce0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id WHlYGfiwgBp3Dy4Q (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:20:30 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 1391D8535A; Tue, 3 Nov 2015 15:20:30 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZp029477; Tue, 3 Nov 2015 10:20:23 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 25/51] xfs: Add richacl support Date: Tue, 3 Nov 2015 16:17:01 +0100 X-ASG-Orig-Subj: [PATCH v13 25/51] xfs: Add richacl support Message-Id: <1446563847-14005-26-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564030 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The richacl feature flag (mkfs.xfs -m richacl=1) determines whether an xfs filesystem supports posix acls or richacls. Richacls are stored in "system.richacl" xattrs. On the grounds that richacls add relatively little overhead compared to the size of xfs itself, to keep the testing matrix small, and because xfs users are highly likely to enable richacls anyway, richacl support cannot be compiled out in xfs. Signed-off-by: Andreas Gruenbacher --- fs/xfs/Kconfig | 1 + fs/xfs/Makefile | 1 + fs/xfs/libxfs/xfs_format.h | 11 ++++- fs/xfs/xfs_iops.c | 44 +++++++++++++++---- fs/xfs/xfs_richacl.c | 103 +++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_richacl.h | 23 ++++++++++ fs/xfs/xfs_super.c | 6 ++- fs/xfs/xfs_super.h | 4 ++ fs/xfs/xfs_xattr.c | 43 ++++++++++++++++--- 9 files changed, 218 insertions(+), 18 deletions(-) create mode 100644 fs/xfs/xfs_richacl.c create mode 100644 fs/xfs/xfs_richacl.h diff --git a/fs/xfs/Kconfig b/fs/xfs/Kconfig index 5d47b4d..3fd00f8 100644 --- a/fs/xfs/Kconfig +++ b/fs/xfs/Kconfig @@ -4,6 +4,7 @@ config XFS_FS depends on (64BIT || LBDAF) select EXPORTFS select LIBCRC32C + select FS_RICHACL help XFS is a high performance journaling filesystem which originated on the SGI IRIX platform. It is completely multi-threaded, can diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index a096841..1e6b984 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -84,6 +84,7 @@ xfs-y += xfs_aops.o \ xfs_message.o \ xfs_mount.o \ xfs_mru_cache.o \ + xfs_richacl.o \ xfs_super.o \ xfs_symlink.o \ xfs_sysfs.o \ diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index 9590a06..923247c 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -461,10 +461,13 @@ xfs_sb_has_ro_compat_feature( #define XFS_SB_FEAT_INCOMPAT_FTYPE (1 << 0) /* filetype in dirent */ #define XFS_SB_FEAT_INCOMPAT_SPINODES (1 << 1) /* sparse inode chunks */ #define XFS_SB_FEAT_INCOMPAT_META_UUID (1 << 2) /* metadata UUID */ +#define XFS_SB_FEAT_INCOMPAT_RICHACL (1 << 3) /* richacls */ + #define XFS_SB_FEAT_INCOMPAT_ALL \ (XFS_SB_FEAT_INCOMPAT_FTYPE| \ XFS_SB_FEAT_INCOMPAT_SPINODES| \ - XFS_SB_FEAT_INCOMPAT_META_UUID) + XFS_SB_FEAT_INCOMPAT_META_UUID| \ + XFS_SB_FEAT_INCOMPAT_RICHACL) #define XFS_SB_FEAT_INCOMPAT_UNKNOWN ~XFS_SB_FEAT_INCOMPAT_ALL static inline bool @@ -530,6 +533,12 @@ static inline bool xfs_sb_version_hasmetauuid(struct xfs_sb *sbp) (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_META_UUID); } +static inline bool xfs_sb_version_hasrichacl(struct xfs_sb *sbp) +{ + return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) && + (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_RICHACL); +} + /* * end of superblock version macros */ diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 8294132..9e4103b 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -27,6 +27,7 @@ #include "xfs_bmap.h" #include "xfs_bmap_util.h" #include "xfs_acl.h" +#include "xfs_richacl.h" #include "xfs_quota.h" #include "xfs_error.h" #include "xfs_attr.h" @@ -42,6 +43,7 @@ #include #include #include +#include #include #include #include @@ -133,7 +135,8 @@ xfs_generic_create( { struct inode *inode; struct xfs_inode *ip = NULL; - struct posix_acl *default_acl, *acl; + struct posix_acl *default_acl = NULL, *acl = NULL; + struct richacl *richacl = NULL; struct xfs_name name; int error; @@ -149,9 +152,15 @@ xfs_generic_create( rdev = 0; } - error = posix_acl_create(dir, &mode, &default_acl, &acl); - if (error) - return error; + if (IS_RICHACL(dir)) { + richacl = richacl_create(&mode, dir); + if (IS_ERR(richacl)) + return PTR_ERR(richacl); + } else { + error = posix_acl_create(dir, &mode, &default_acl, &acl); + if (error) + return error; + } if (!tmpfile) { xfs_dentry_to_name(&name, dentry, mode); @@ -180,6 +189,11 @@ xfs_generic_create( goto out_cleanup_inode; } #endif + if (richacl) { + error = xfs_set_richacl(inode, richacl); + if (error) + goto out_cleanup_inode; + } if (tmpfile) d_tmpfile(dentry, inode); @@ -189,10 +203,9 @@ xfs_generic_create( xfs_finish_inode_setup(ip); out_free_acl: - if (default_acl) - posix_acl_release(default_acl); - if (acl) - posix_acl_release(acl); + posix_acl_release(default_acl); + posix_acl_release(acl); + richacl_put(richacl); return error; out_cleanup_inode: @@ -534,6 +547,13 @@ xfs_setattr_time( } } +static inline int +xfs_acl_chmod(struct inode *inode, umode_t mode) +{ + if (IS_RICHACL(inode)) + return richacl_chmod(inode, inode->i_mode); + return posix_acl_chmod(inode, inode->i_mode); +} int xfs_setattr_nonsize( struct xfs_inode *ip, @@ -722,7 +742,7 @@ xfs_setattr_nonsize( * Posix ACL code seems to care about this issue either. */ if ((mask & ATTR_MODE) && !(flags & XFS_ATTR_NOACL)) { - error = posix_acl_chmod(inode, inode->i_mode); + error = xfs_acl_chmod(inode, inode->i_mode); if (error) return error; } @@ -1104,6 +1124,8 @@ xfs_vn_tmpfile( static const struct inode_operations xfs_inode_operations = { .get_acl = xfs_get_acl, .set_acl = xfs_set_acl, + .get_richacl = xfs_get_richacl, + .set_richacl = xfs_set_richacl, .getattr = xfs_vn_getattr, .setattr = xfs_vn_setattr, .setxattr = generic_setxattr, @@ -1132,6 +1154,8 @@ static const struct inode_operations xfs_dir_inode_operations = { .rename2 = xfs_vn_rename, .get_acl = xfs_get_acl, .set_acl = xfs_set_acl, + .get_richacl = xfs_get_richacl, + .set_richacl = xfs_set_richacl, .getattr = xfs_vn_getattr, .setattr = xfs_vn_setattr, .setxattr = generic_setxattr, @@ -1160,6 +1184,8 @@ static const struct inode_operations xfs_dir_ci_inode_operations = { .rename2 = xfs_vn_rename, .get_acl = xfs_get_acl, .set_acl = xfs_set_acl, + .get_richacl = xfs_get_richacl, + .set_richacl = xfs_set_richacl, .getattr = xfs_vn_getattr, .setattr = xfs_vn_setattr, .setxattr = generic_setxattr, diff --git a/fs/xfs/xfs_richacl.c b/fs/xfs/xfs_richacl.c new file mode 100644 index 0000000..92a036e --- /dev/null +++ b/fs/xfs/xfs_richacl.c @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2015 Red Hat, Inc. + * Author: Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2.1 of the GNU Lesser General Public License + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + */ + +#include "xfs.h" +#include "xfs_format.h" +#include "xfs_log_format.h" +#include "xfs_inode.h" +#include "xfs_attr.h" + +#include +#include + +struct richacl * +xfs_get_richacl(struct inode *inode) +{ + struct xfs_inode *ip = XFS_I(inode); + struct richacl *acl = NULL; + int size = XATTR_SIZE_MAX; + void *value; + int error; + + value = kmem_zalloc_large(size, KM_SLEEP); + if (!value) + return ERR_PTR(-ENOMEM); + + error = xfs_attr_get(ip, XATTR_RICHACL, value, &size, ATTR_ROOT); + if (error) { + /* + * If the attribute doesn't exist make sure we have a negative + * cache entry, for any other error assume it is transient and + * leave the cache entry as ACL_NOT_CACHED. + */ + if (error != -ENOATTR) + acl = ERR_PTR(error); + } else + acl = richacl_from_xattr(&init_user_ns, value, size); + + if (!IS_ERR(acl)) + set_cached_richacl(inode, acl); + kfree(value); + + return acl; +} + +static int +xfs_remove_richacl(struct inode *inode) +{ + struct xfs_inode *ip = XFS_I(inode); + int error; + + error = xfs_attr_remove(ip, XATTR_RICHACL, ATTR_ROOT); + if (error == -ENOATTR) + error = 0; + if (!error) + set_cached_richacl(inode, NULL); + return error; +} + +int +xfs_set_richacl(struct inode *inode, struct richacl *acl) +{ + struct xfs_inode *ip = XFS_I(inode); + umode_t mode = inode->i_mode; + int error, size; + void *value; + + if (!acl) + return xfs_remove_richacl(inode); + + if (richacl_equiv_mode(acl, &mode) == 0) { + xfs_set_mode(inode, mode); + return xfs_remove_richacl(inode); + } + + size = richacl_xattr_size(acl); + value = kmem_zalloc_large(size, KM_SLEEP); + if (!value) + return -ENOMEM; + richacl_to_xattr(&init_user_ns, acl, value, size); + error = xfs_attr_set(ip, XATTR_RICHACL, value, size, + ATTR_ROOT); + kfree(value); + if (error) + return error; + + mode &= ~S_IRWXUGO; + mode |= richacl_masks_to_mode(acl); + xfs_set_mode(inode, mode); + set_cached_richacl(inode, acl); + + return 0; +} diff --git a/fs/xfs/xfs_richacl.h b/fs/xfs/xfs_richacl.h new file mode 100644 index 0000000..431aa25 --- /dev/null +++ b/fs/xfs/xfs_richacl.h @@ -0,0 +1,23 @@ +/* + * Copyright (C) 2015 Red Hat, Inc. + * Author: Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2.1 of the GNU Lesser General Public License + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + */ + +#ifndef __FS_XFS_RICHACL_H +#define __FS_XFS_RICHACL_H + +struct richacl; + +extern struct richacl *xfs_get_richacl(struct inode *); +extern int xfs_set_richacl(struct inode *, struct richacl *); + +#endif /* __FS_XFS_RICHACL_H */ diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 904f637..f82ce1a 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1500,7 +1500,11 @@ xfs_fs_fill_super( sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits); sb->s_max_links = XFS_MAXLINK; sb->s_time_gran = 1; - set_posix_acl_flag(sb); + + if (xfs_sb_version_hasrichacl(&mp->m_sb)) + set_richacl_flag(sb); + else + set_posix_acl_flag(sb); /* version 5 superblocks support inode version counters. */ if (XFS_SB_VERSION_NUM(&mp->m_sb) == XFS_SB_VERSION_5) diff --git a/fs/xfs/xfs_super.h b/fs/xfs/xfs_super.h index 499058f..7ae21d9 100644 --- a/fs/xfs/xfs_super.h +++ b/fs/xfs/xfs_super.h @@ -36,6 +36,9 @@ extern void xfs_qm_exit(void); # define set_posix_acl_flag(sb) do { } while (0) #endif +# define XFS_RICHACL_STRING "Richacls, " +# define set_richacl_flag(sb) ((sb)->s_flags |= MS_RICHACL) + #define XFS_SECURITY_STRING "security attributes, " #ifdef CONFIG_XFS_RT @@ -52,6 +55,7 @@ extern void xfs_qm_exit(void); #define XFS_VERSION_STRING "SGI XFS" #define XFS_BUILD_OPTIONS XFS_ACL_STRING \ + XFS_RICHACL_STRING \ XFS_SECURITY_STRING \ XFS_REALTIME_STRING \ XFS_DBG_STRING /* DBG must be last */ diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c index 8428aed..64aac05 100644 --- a/fs/xfs/xfs_xattr.c +++ b/fs/xfs/xfs_xattr.c @@ -28,6 +28,7 @@ #include "xfs_acl.h" #include +#include #include @@ -74,6 +75,24 @@ xfs_xattr_set(struct dentry *dentry, const char *name, const void *value, (void *)value, size, xflags); } +static int +xfs_xattr_get_trusted(struct dentry *dentry, const char *name, + void *value, size_t size, int xflags) +{ + if (strcmp(name, XATTR_RICHACL) == 0) + return -EOPNOTSUPP; + return xfs_xattr_get(dentry, name, value, size, xflags); +} + +static int +xfs_xattr_set_trusted(struct dentry *dentry, const char *name, + const void *value, size_t size, int flags, int xflags) +{ + if (strcmp(name, XATTR_RICHACL) == 0) + return -EOPNOTSUPP; + return xfs_xattr_set(dentry, name, value, size, flags, xflags); +} + static const struct xattr_handler xfs_xattr_user_handler = { .prefix = XATTR_USER_PREFIX, .flags = 0, /* no flags implies user namespace */ @@ -84,8 +103,8 @@ static const struct xattr_handler xfs_xattr_user_handler = { static const struct xattr_handler xfs_xattr_trusted_handler = { .prefix = XATTR_TRUSTED_PREFIX, .flags = ATTR_ROOT, - .get = xfs_xattr_get, - .set = xfs_xattr_set, + .get = xfs_xattr_get_trusted, + .set = xfs_xattr_set_trusted, }; static const struct xattr_handler xfs_xattr_security_handler = { @@ -103,6 +122,7 @@ const struct xattr_handler *xfs_xattr_handlers[] = { &posix_acl_access_xattr_handler, &posix_acl_default_xattr_handler, #endif + &richacl_xattr_handler, NULL }; @@ -152,10 +172,10 @@ xfs_xattr_put_listent( ASSERT(context->count >= 0); if (flags & XFS_ATTR_ROOT) { -#ifdef CONFIG_XFS_POSIX_ACL if (namelen == SGI_ACL_FILE_SIZE && strncmp(name, SGI_ACL_FILE, - SGI_ACL_FILE_SIZE) == 0) { + SGI_ACL_FILE_SIZE) == 0 && + IS_POSIXACL(&context->dp->i_vnode)) { int ret = __xfs_xattr_put_listent( context, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN, @@ -164,8 +184,9 @@ xfs_xattr_put_listent( if (ret) return ret; } else if (namelen == SGI_ACL_DEFAULT_SIZE && - strncmp(name, SGI_ACL_DEFAULT, - SGI_ACL_DEFAULT_SIZE) == 0) { + strncmp(name, SGI_ACL_DEFAULT, + SGI_ACL_DEFAULT_SIZE) == 0 && + IS_POSIXACL(&context->dp->i_vnode)) { int ret = __xfs_xattr_put_listent( context, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN, @@ -173,8 +194,16 @@ xfs_xattr_put_listent( strlen(XATTR_POSIX_ACL_DEFAULT)); if (ret) return ret; + } else if (namelen == strlen(XATTR_RICHACL) && + strncmp(name, XATTR_RICHACL, + strlen(XATTR_RICHACL)) == 0 && + IS_RICHACL(&context->dp->i_vnode)) { + return __xfs_xattr_put_listent( + context, XATTR_SYSTEM_PREFIX, + XATTR_SYSTEM_PREFIX_LEN, + XATTR_RICHACL, + strlen(XATTR_RICHACL)); } -#endif /* * Only show root namespace entries if we are actually allowed to -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:20:39 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D12BC29E2C for ; Tue, 3 Nov 2015 09:20:39 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 58FF8AC002 for ; Tue, 3 Nov 2015 07:20:39 -0800 (PST) X-ASG-Debug-ID: 1446564037-04cbb0660c1f7cf0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 6YqDyEaHigYnnnj8 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:20:38 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 61E82C10045C; Tue, 3 Nov 2015 15:20:37 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZq029477; Tue, 3 Nov 2015 10:20:30 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 26/51] xfs: Plug memory leak in xfs_attrmulti_attr_set Date: Tue, 3 Nov 2015 16:17:02 +0100 X-ASG-Orig-Subj: [PATCH v13 26/51] xfs: Plug memory leak in xfs_attrmulti_attr_set Message-Id: <1446563847-14005-27-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564037 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 When setting attributes via XFS_IOC_ATTRMULTI_BY_HANDLE, the user-space buffer is copied into a new kernel-space buffer via memdup_user; that buffer then isn't freed. Signed-off-by: Andreas Gruenbacher Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- fs/xfs/xfs_ioctl.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index ea7d85a..e939c20 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -482,6 +482,7 @@ xfs_attrmulti_attr_set( __uint32_t flags) { unsigned char *kbuf; + int error; if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) return -EPERM; @@ -492,7 +493,9 @@ xfs_attrmulti_attr_set( if (IS_ERR(kbuf)) return PTR_ERR(kbuf); - return xfs_attr_set(XFS_I(inode), name, kbuf, len, flags); + error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags); + kfree(kbuf); + return error; } int -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:20:45 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id EEAD629E35 for ; Tue, 3 Nov 2015 09:20:45 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id DEC39304043 for ; Tue, 3 Nov 2015 07:20:45 -0800 (PST) X-ASG-Debug-ID: 1446564044-04cb6c7b841ddc60001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id umV3XRzdB8vkeAHw (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:20:44 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 4845EA4505; Tue, 3 Nov 2015 15:20:44 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZr029477; Tue, 3 Nov 2015 10:20:38 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 27/51] xfs: Fix richacl access by ioctl Date: Tue, 3 Nov 2015 16:17:03 +0100 X-ASG-Orig-Subj: [PATCH v13 27/51] xfs: Fix richacl access by ioctl Message-Id: <1446563847-14005-28-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564044 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Make sure that the XFS_IOC_ATTRMULTI_BY_HANDLE ioctl exposes richacls in the same way as the xattr interface: check for mode-equivalent richacls, update the inode permission bits, and perform user namespace mapping. Signed-off-by: Andreas Gruenbacher --- fs/xfs/xfs_ioctl.c | 27 +++++++++++++++++++++++++++ fs/xfs/xfs_richacl.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++---- fs/xfs/xfs_richacl.h | 3 +++ 3 files changed, 78 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index e939c20..deae7df 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -40,6 +40,7 @@ #include "xfs_symlink.h" #include "xfs_trans.h" #include "xfs_pnfs.h" +#include "xfs_richacl.h" #include #include @@ -48,6 +49,7 @@ #include #include #include +#include /* * xfs_find_handle maps from userspace xfs_fsop_handlereq structure to @@ -461,10 +463,20 @@ xfs_attrmulti_attr_get( if (!kbuf) return -ENOMEM; + if (flags & ATTR_ROOT) { + if (!strcmp(name, XATTR_RICHACL)) { + error = xfs_richacl_get_ioctl(inode, kbuf, (int *)len); + if (error) + goto out_kfree; + goto out_copy; + } + } + error = xfs_attr_get(XFS_I(inode), name, kbuf, (int *)len, flags); if (error) goto out_kfree; +out_copy: if (copy_to_user(ubuf, kbuf, *len)) error = -EFAULT; @@ -493,7 +505,16 @@ xfs_attrmulti_attr_set( if (IS_ERR(kbuf)) return PTR_ERR(kbuf); + if (flags & ATTR_ROOT) { + if (!strcmp(name, XATTR_RICHACL)) { + error = xfs_richacl_set_ioctl(inode, kbuf, len, flags); + goto out_kfree; + } + } + error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags); + +out_kfree: kfree(kbuf); return error; } @@ -506,6 +527,12 @@ xfs_attrmulti_attr_remove( { if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) return -EPERM; + + if (flags & ATTR_ROOT) { + if (!strcmp(name, XATTR_RICHACL)) + return xfs_richacl_set_ioctl(inode, NULL, 0, flags); + } + return xfs_attr_remove(XFS_I(inode), name, flags); } diff --git a/fs/xfs/xfs_richacl.c b/fs/xfs/xfs_richacl.c index 92a036e..f8f5a62 100644 --- a/fs/xfs/xfs_richacl.c +++ b/fs/xfs/xfs_richacl.c @@ -67,8 +67,8 @@ xfs_remove_richacl(struct inode *inode) return error; } -int -xfs_set_richacl(struct inode *inode, struct richacl *acl) +static int +__xfs_set_richacl(struct inode *inode, struct richacl *acl, int xflags) { struct xfs_inode *ip = XFS_I(inode); umode_t mode = inode->i_mode; @@ -88,8 +88,7 @@ xfs_set_richacl(struct inode *inode, struct richacl *acl) if (!value) return -ENOMEM; richacl_to_xattr(&init_user_ns, acl, value, size); - error = xfs_attr_set(ip, XATTR_RICHACL, value, size, - ATTR_ROOT); + error = xfs_attr_set(ip, XATTR_RICHACL, value, size, xflags); kfree(value); if (error) return error; @@ -101,3 +100,48 @@ xfs_set_richacl(struct inode *inode, struct richacl *acl) return 0; } + +int +xfs_set_richacl(struct inode *inode, struct richacl *acl) +{ + return __xfs_set_richacl(inode, acl, ATTR_ROOT); +} + +int +xfs_richacl_get_ioctl(struct inode *inode, void *value, int *len) +{ + struct user_namespace *user_ns = current_user_ns(); + struct richacl *acl; + int error; + + acl = get_richacl(inode); + if (IS_ERR_OR_NULL(acl)) + return PTR_ERR(acl); + error = richacl_to_xattr(user_ns, acl, value, *len); + if (error > 0) { + *len = error; + error = 0; + } + richacl_put(acl); + return error; +} + +int +xfs_richacl_set_ioctl(struct inode *inode, void *value, unsigned int size, + int xflags) +{ + struct user_namespace *user_ns = current_user_ns(); + struct richacl *acl = NULL; + int error; + + if (!IS_RICHACL(inode)) + return -EOPNOTSUPP; + if (value) { + acl = richacl_from_xattr(user_ns, value, size); + if (IS_ERR(acl)) + return PTR_ERR(acl); + } + error = __xfs_set_richacl(inode, acl, xflags); + richacl_put(acl); + return error; +} diff --git a/fs/xfs/xfs_richacl.h b/fs/xfs/xfs_richacl.h index 431aa25..1fd1fc1 100644 --- a/fs/xfs/xfs_richacl.h +++ b/fs/xfs/xfs_richacl.h @@ -20,4 +20,7 @@ struct richacl; extern struct richacl *xfs_get_richacl(struct inode *); extern int xfs_set_richacl(struct inode *, struct richacl *); +extern int xfs_richacl_get_ioctl(struct inode *, void *, int *); +extern int xfs_richacl_set_ioctl(struct inode *, void *, int, int); + #endif /* __FS_XFS_RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:20:53 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5560929E2C for ; Tue, 3 Nov 2015 09:20:53 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id E0A9FAC002 for ; Tue, 3 Nov 2015 07:20:52 -0800 (PST) X-ASG-Debug-ID: 1446564051-04bdf033091fcac0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id AFF6BkIuDW98ZBVg (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:20:51 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 341328FAA2; Tue, 3 Nov 2015 15:20:51 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZs029477; Tue, 3 Nov 2015 10:20:44 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 28/51] richacl: acl editing helper functions Date: Tue, 3 Nov 2015 16:17:04 +0100 X-ASG-Orig-Subj: [PATCH v13 28/51] richacl: acl editing helper functions Message-Id: <1446563847-14005-29-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564051 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The file masks in richacls make chmod and creating new files more efficient than having to apply file permission bits to the acl directly. They also allow us to regain permissions from an acl even after a restrictive chmod, because the permissions in the acl itself are not being destroyed. In POSIX ACLs, the mask entry has a similar function. Protocols like nfsv4 do not understand file masks. For those protocols, we need to compute nfs4 acls which represent the effective permissions granted by a richacl: we need to "apply" the file masks to the acl. This is the first in a series of richacl transformation patches; it implements basic richacl editing functions. The following patches implement algorithms for transforming a richacl so that it can be evaluated as a plain nfs4 acl, with identical permission check results. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/Makefile | 3 +- fs/richacl_compat.c | 155 +++++++++++++++++++++++++++++++++++++++++ include/linux/richacl_compat.h | 40 +++++++++++ 3 files changed, 197 insertions(+), 1 deletion(-) create mode 100644 fs/richacl_compat.c create mode 100644 include/linux/richacl_compat.h diff --git a/fs/Makefile b/fs/Makefile index 35e640d..32b391b 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -49,7 +49,8 @@ obj-$(CONFIG_SYSCTL) += drop_caches.o obj-$(CONFIG_FHANDLE) += fhandle.o obj-$(CONFIG_FS_RICHACL) += richacl.o -richacl-y := richacl_base.o richacl_inode.o richacl_xattr.o +richacl-y := richacl_base.o richacl_inode.o \ + richacl_xattr.o richacl_compat.o obj-y += quota/ diff --git a/fs/richacl_compat.c b/fs/richacl_compat.c new file mode 100644 index 0000000..5c59999 --- /dev/null +++ b/fs/richacl_compat.c @@ -0,0 +1,155 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include + +/** + * richacl_prepare - allocate richacl being constructed + * + * Allocate a richacl which can hold @count entries but which is initially + * empty. + */ +struct richacl *richacl_prepare(struct richacl_alloc *alloc, unsigned int count) +{ + alloc->acl = richacl_alloc(count, GFP_KERNEL); + if (!alloc->acl) + return NULL; + alloc->acl->a_count = 0; + alloc->count = count; + return alloc->acl; +} +EXPORT_SYMBOL_GPL(richacl_prepare); + +/** + * richacl_delete_entry - delete an entry in an acl + * @alloc: acl and number of allocated entries + * @ace: an entry in @alloc->acl + * + * Updates @ace so that it points to the entry before the deleted entry + * on return. (When deleting the first entry, @ace will point to the + * (non-existent) entry before the first entry). This behavior is the + * expected behavior when deleting entries while forward iterating over + * an acl. + */ +void +richacl_delete_entry(struct richacl_alloc *alloc, struct richace **ace) +{ + void *end = alloc->acl->a_entries + alloc->acl->a_count; + + memmove(*ace, *ace + 1, end - (void *)(*ace + 1)); + (*ace)--; + alloc->acl->a_count--; +} +EXPORT_SYMBOL_GPL(richacl_delete_entry); + +/** + * richacl_insert_entry - insert an entry in an acl + * @alloc: acl and number of allocated entries + * @ace: entry before which the new entry shall be inserted + * + * Insert a new entry in @alloc->acl at position @ace and zero-initialize + * it. This may require reallocating @alloc->acl. + */ +int +richacl_insert_entry(struct richacl_alloc *alloc, struct richace **ace) +{ + struct richacl *acl = alloc->acl; + unsigned int index = *ace - acl->a_entries; + size_t tail_size = (acl->a_count - index) * sizeof(struct richace); + + if (alloc->count == acl->a_count) { + size_t new_size = sizeof(struct richacl) + + (acl->a_count + 1) * sizeof(struct richace); + + acl = krealloc(acl, new_size, GFP_KERNEL); + if (!acl) + return -1; + *ace = acl->a_entries + index; + alloc->acl = acl; + alloc->count++; + } + + memmove(*ace + 1, *ace, tail_size); + memset(*ace, 0, sizeof(**ace)); + acl->a_count++; + return 0; +} +EXPORT_SYMBOL_GPL(richacl_insert_entry); + +/** + * richacl_append_entry - append an entry to an acl + * @alloc: acl and number of allocated entries + * + * This may require reallocating @alloc->acl. + */ +struct richace *richacl_append_entry(struct richacl_alloc *alloc) +{ + struct richacl *acl = alloc->acl; + struct richace *ace = acl->a_entries + acl->a_count; + + if (alloc->count > alloc->acl->a_count) { + acl->a_count++; + return ace; + } + return richacl_insert_entry(alloc, &ace) ? NULL : ace; +} +EXPORT_SYMBOL_GPL(richacl_append_entry); + +/** + * richace_change_mask - set the mask of @ace to @mask + * @alloc: acl and number of allocated entries + * @ace: entry to modify + * @mask: new mask for @ace + * + * If @ace is inheritable, a inherit-only ace is inserted before @ace which + * includes the inheritable permissions of @ace and the inheritance flags of + * @ace are cleared before changing the mask. + * + * If @mask is 0, the original ace is turned into an inherit-only entry if + * there are any inheritable permissions, and removed otherwise. + * + * The returned @ace points to the modified or inserted effective-only acl + * entry if that entry exists, to the entry that has become inheritable-only, + * or else to the previous entry in the acl. + */ +static int +richace_change_mask(struct richacl_alloc *alloc, struct richace **ace, + unsigned int mask) +{ + if (mask && (*ace)->e_mask == mask) + (*ace)->e_flags &= ~RICHACE_INHERIT_ONLY_ACE; + else if (mask & ~RICHACE_POSIX_ALWAYS_ALLOWED) { + if (richace_is_inheritable(*ace)) { + if (richacl_insert_entry(alloc, ace)) + return -1; + richace_copy(*ace, *ace + 1); + (*ace)->e_flags |= RICHACE_INHERIT_ONLY_ACE; + (*ace)++; + (*ace)->e_flags &= ~RICHACE_INHERITANCE_FLAGS | + RICHACE_INHERITED_ACE; + } + (*ace)->e_mask = mask; + } else { + if (richace_is_inheritable(*ace)) + (*ace)->e_flags |= RICHACE_INHERIT_ONLY_ACE; + else + richacl_delete_entry(alloc, ace); + } + return 0; +} diff --git a/include/linux/richacl_compat.h b/include/linux/richacl_compat.h new file mode 100644 index 0000000..a9ff630 --- /dev/null +++ b/include/linux/richacl_compat.h @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#ifndef __RICHACL_COMPAT_H +#define __RICHACL_COMPAT_H + +#include + +/** + * struct richacl_alloc - remember how many entries are actually allocated + * @acl: acl with a_count <= @count + * @count: the actual number of entries allocated in @acl + * + * We pass around this structure while modifying an acl so that we do + * not have to reallocate when we remove existing entries followed by + * adding new entries. + */ +struct richacl_alloc { + struct richacl *acl; + unsigned int count; +}; + +struct richacl *richacl_prepare(struct richacl_alloc *, unsigned int); +struct richace *richacl_append_entry(struct richacl_alloc *); +int richacl_insert_entry(struct richacl_alloc *, struct richace **); +void richacl_delete_entry(struct richacl_alloc *, struct richace **); + +#endif /* __RICHACL_COMPAT_H */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:20:59 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id ACDC729E4C for ; Tue, 3 Nov 2015 09:20:59 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7A53A304059 for ; Tue, 3 Nov 2015 07:20:59 -0800 (PST) X-ASG-Debug-ID: 1446564058-04bdf0330c1fcae0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id cLdaTJmS3Vy6NA2n (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:20:58 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 17BFB8E22D; Tue, 3 Nov 2015 15:20:58 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZt029477; Tue, 3 Nov 2015 10:20:51 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 29/51] richacl: Move everyone@ aces down the acl Date: Tue, 3 Nov 2015 16:17:05 +0100 X-ASG-Orig-Subj: [PATCH v13 29/51] richacl: Move everyone@ aces down the acl Message-Id: <1446563847-14005-30-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564058 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The POSIX standard puts processes which are not the owner or a member in the owning group or which match any ace other then everyone@ on the other file class. We only know if a process is in the other class after processing the entire acl. Move all everyone@ aces in the acl down in the acl so that at most a single everyone@ allow ace remains at the end. Permissions which are not explicitly allowed are implicitly denied, so an everyone@ deny ace is unneeded. The everyone@ aces can be moved down the acl without changing the permissions that the acl grants. This transformation simplifies the following algorithms, and eventually allows us to turn the final everyone@ allow ace into an entry for the other class. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_compat.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/fs/richacl_compat.c b/fs/richacl_compat.c index 5c59999..962d314 100644 --- a/fs/richacl_compat.c +++ b/fs/richacl_compat.c @@ -153,3 +153,68 @@ richace_change_mask(struct richacl_alloc *alloc, struct richace **ace, } return 0; } + +/** + * richacl_move_everyone_aces_down - move everyone@ aces to the end of the acl + * @alloc: acl and number of allocated entries + * + * Move all everyone aces to the end of the acl so that only a single everyone@ + * allow ace remains at the end, and update the mask fields of all aces on the + * way. The last ace of the resulting acl will be an everyone@ allow ace only + * if @acl grants any permissions to @everyone. No @everyone deny aces will + * remain. + * + * This transformation does not alter the permissions that the acl grants. + * Having at most one everyone@ allow ace at the end of the acl helps us in the + * following algorithms. + */ +static int +richacl_move_everyone_aces_down(struct richacl_alloc *alloc) +{ + struct richace *ace; + unsigned int allowed = 0, denied = 0; + + richacl_for_each_entry(ace, alloc->acl) { + if (richace_is_inherit_only(ace)) + continue; + if (richace_is_everyone(ace)) { + if (richace_is_allow(ace)) + allowed |= (ace->e_mask & ~denied); + else if (richace_is_deny(ace)) + denied |= (ace->e_mask & ~allowed); + else + continue; + if (richace_change_mask(alloc, &ace, 0)) + return -1; + } else { + if (richace_is_allow(ace)) { + if (richace_change_mask(alloc, &ace, allowed | + (ace->e_mask & ~denied))) + return -1; + } else if (richace_is_deny(ace)) { + if (richace_change_mask(alloc, &ace, denied | + (ace->e_mask & ~allowed))) + return -1; + } + } + } + if (allowed & ~RICHACE_POSIX_ALWAYS_ALLOWED) { + struct richace *last_ace = ace - 1; + + if (alloc->acl->a_entries && + richace_is_everyone(last_ace) && + richace_is_allow(last_ace) && + richace_is_inherit_only(last_ace) && + last_ace->e_mask == allowed) + last_ace->e_flags &= ~RICHACE_INHERIT_ONLY_ACE; + else { + if (richacl_insert_entry(alloc, &ace)) + return -1; + ace->e_type = RICHACE_ACCESS_ALLOWED_ACE_TYPE; + ace->e_flags = RICHACE_SPECIAL_WHO; + ace->e_mask = allowed; + ace->e_id.special = RICHACE_EVERYONE_SPECIAL_ID; + } + } + return 0; +} -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:21:07 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2627629E2C for ; Tue, 3 Nov 2015 09:21:07 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 158988F8040 for ; Tue, 3 Nov 2015 07:21:07 -0800 (PST) X-ASG-Debug-ID: 1446564065-04cbb0660c1f7d50001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id GXgNP7Sb3GnIbmHA (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:21:05 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 0A14E8F4F8; Tue, 3 Nov 2015 15:21:05 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZu029477; Tue, 3 Nov 2015 10:20:58 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 30/51] richacl: Propagate everyone@ permissions to other aces Date: Tue, 3 Nov 2015 16:17:06 +0100 X-ASG-Orig-Subj: [PATCH v13 30/51] richacl: Propagate everyone@ permissions to other aces Message-Id: <1446563847-14005-31-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564065 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The trailing everyone@ allow ace can grant permissions to all file classes including the owner and group class. Before we can apply the other mask to this entry to turn it into an "other class" entry, we need to ensure that members of the owner or group class will not lose any permissions from that ace. Conceptually, we do this by inserting additional :::allow entries before the trailing everyone@ allow ace with the same permissions as the trailing everyone@ allow ace for owner@, group@, and all explicitly mentioned users and groups. (In practice, we will rarely need to insert any additional aces in this step.) Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_compat.c | 198 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 198 insertions(+) diff --git a/fs/richacl_compat.c b/fs/richacl_compat.c index 962d314..e90d57c 100644 --- a/fs/richacl_compat.c +++ b/fs/richacl_compat.c @@ -218,3 +218,201 @@ richacl_move_everyone_aces_down(struct richacl_alloc *alloc) } return 0; } + +/** + * __richacl_propagate_everyone - propagate everyone@ permissions up for @who + * @alloc: acl and number of allocated entries + * @who: identifier to propagate permissions for + * @allow: permissions to propagate up + * + * Propagate the permissions in @allow up from the end of the acl to the start + * for the specified principal @who. + * + * The simplest possible approach to achieve this would be to insert a + * ":::allow" ace before the final everyone@ allow ace. Since this + * would often result in aces which are not needed or which could be merged + * with an existing ace, we make the following optimizations: + * + * - We go through the acl and determine which permissions are already + * allowed or denied to @who, and we remove those permissions from + * @allow. + * + * - If the acl contains an allow ace for @who and no aces after this entry + * deny permissions in @allow, we add the permissions in @allow to this + * ace. (Propagating permissions across a deny ace which can match the + * process can elevate permissions.) + * + * This transformation does not alter the permissions that the acl grants. + */ +static int +__richacl_propagate_everyone(struct richacl_alloc *alloc, struct richace *who, + unsigned int allow) +{ + struct richace *allow_last = NULL, *ace; + struct richacl *acl = alloc->acl; + + /* + * Remove the permissions from allow that are already determined for + * this who value, and figure out if there is an allow entry for + * this who value that is "reachable" from the trailing everyone@ + * allow ace. + */ + richacl_for_each_entry(ace, acl) { + if (richace_is_inherit_only(ace)) + continue; + if (richace_is_allow(ace)) { + if (richace_is_same_identifier(ace, who)) { + allow &= ~ace->e_mask; + allow_last = ace; + } + } else if (richace_is_deny(ace)) { + if (richace_is_same_identifier(ace, who)) + allow &= ~ace->e_mask; + else if (allow & ace->e_mask) + allow_last = NULL; + } + } + ace--; + + /* + * If for group class entries, all the remaining permissions will + * remain granted by the trailing everyone@ allow ace, no additional + * entry is needed. + */ + if (!richace_is_owner(who) && + richace_is_everyone(ace) && + !(allow & ~(ace->e_mask & acl->a_other_mask))) + allow = 0; + + if (allow) { + if (allow_last) + return richace_change_mask(alloc, &allow_last, + allow_last->e_mask | allow); + else { + struct richace who_copy; + + richace_copy(&who_copy, who); + if (richacl_insert_entry(alloc, &ace)) + return -1; + richace_copy(ace, &who_copy); + ace->e_type = RICHACE_ACCESS_ALLOWED_ACE_TYPE; + ace->e_flags &= ~RICHACE_INHERITANCE_FLAGS; + ace->e_mask = allow; + } + } + return 0; +} + +/** + * richacl_propagate_everyone - propagate everyone@ permissions up the acl + * @alloc: acl and number of allocated entries + * + * Make sure that group@ and all other users and groups mentioned in the acl + * will not lose any permissions when finally applying the other mask to the + * everyone@ allow ace at the end of the acl. We modify the permissions of + * existing entries or add new entries before the final everyone@ allow ace to + * achieve that. + * + * For example, the following acl implicitly grants everyone rwpx access: + * + * joe:r::allow + * everyone@:rwpx::allow + * + * When applying mode 0660 to this acl, group@ would lose rwp access, and joe + * would lose wp access even though the mode does not exclude those + * permissions. After propagating the everyone@ permissions, the result for + * applying mode 0660 becomes: + * + * owner@:rwp::allow + * joe:rwp::allow + * group@:rwp::allow + * + * Deny aces complicate the matter. For example, the following acl grants + * everyone but joe write access: + * + * joe:wp::deny + * everyone@:rwpx::allow + * + * When applying mode 0660 to this acl, group@ would lose rwp access, and joe + * would lose r access. After propagating the everyone@ permissions, the + * result for applying mode 0660 becomes: + * + * owner@:rwp::allow + * joe:w::deny + * group@:rwp::allow + * joe:r::allow + */ +static int +richacl_propagate_everyone(struct richacl_alloc *alloc) +{ + struct richace who = { .e_flags = RICHACE_SPECIAL_WHO }; + struct richacl *acl = alloc->acl; + struct richace *ace; + unsigned int owner_allow, group_allow; + + if (!acl->a_count) + return 0; + ace = acl->a_entries + acl->a_count - 1; + if (richace_is_inherit_only(ace) || !richace_is_everyone(ace)) + return 0; + + /* + * Permissions the owner and group class are granted through the + * trailing everyone@ allow ace. + */ + owner_allow = ace->e_mask & acl->a_owner_mask; + group_allow = ace->e_mask & acl->a_group_mask; + + /* + * If the group or other masks hide permissions which the owner should + * be allowed, we need to propagate those permissions up. Otherwise, + * those permissions may be lost when applying the other mask to the + * trailing everyone@ allow ace, or when isolating the group class from + * the other class through additional deny aces. + */ + if (owner_allow & ~(acl->a_group_mask & acl->a_other_mask)) { + /* Propagate everyone@ permissions through to owner@. */ + who.e_id.special = RICHACE_OWNER_SPECIAL_ID; + if (__richacl_propagate_everyone(alloc, &who, owner_allow)) + return -1; + acl = alloc->acl; + } + + /* + * If the other mask hides permissions which the group class should be + * allowed, we need to propagate those permissions up to the owning + * group and to all other members in the group class. + */ + if (group_allow & ~acl->a_other_mask) { + int n; + + /* Propagate everyone@ permissions through to group@. */ + who.e_id.special = RICHACE_GROUP_SPECIAL_ID; + if (__richacl_propagate_everyone(alloc, &who, group_allow)) + return -1; + acl = alloc->acl; + + /* + * Start from the entry before the trailing everyone@ allow + * entry. We will not hit everyone@ entries in the loop. + */ + for (n = acl->a_count - 2; n != -1; n--) { + ace = acl->a_entries + n; + + if (richace_is_inherit_only(ace) || + richace_is_owner(ace) || + richace_is_group(ace)) + continue; + + /* + * Any inserted entry will end up below the current + * entry. + */ + if (__richacl_propagate_everyone(alloc, ace, + group_allow)) + return -1; + acl = alloc->acl; + } + } + return 0; +} -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:21:14 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 704E429E58 for ; Tue, 3 Nov 2015 09:21:14 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id E28F0AC006 for ; Tue, 3 Nov 2015 07:21:13 -0800 (PST) X-ASG-Debug-ID: 1446564072-04cb6c7b861ddca0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id jFbFuMs3h4M4apJ2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:21:12 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id DB6BC8FAA5; Tue, 3 Nov 2015 15:21:11 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZv029477; Tue, 3 Nov 2015 10:21:05 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 31/51] richacl: Set the owner permissions to the owner mask Date: Tue, 3 Nov 2015 16:17:07 +0100 X-ASG-Orig-Subj: [PATCH v13 31/51] richacl: Set the owner permissions to the owner mask Message-Id: <1446563847-14005-32-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564072 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 In the write-through case, change the acl so that owner@ is granted the permissions set in the owner mask (to match what the permission check algorithm grants the owner). Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_compat.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/fs/richacl_compat.c b/fs/richacl_compat.c index e90d57c..d9fee8b 100644 --- a/fs/richacl_compat.c +++ b/fs/richacl_compat.c @@ -416,3 +416,49 @@ richacl_propagate_everyone(struct richacl_alloc *alloc) } return 0; } + +/** + * richacl_set_owner_permissions - set the owner permissions to the owner mask + * + * In the write-through case, change the acl so that owner@ is granted the + * permissions set in the owner mask (to match what the permission check + * algorithm grants the owner). This leaves at most one efective owner@ allow + * entry at the beginning of the acl. + */ +static int +richacl_set_owner_permissions(struct richacl_alloc *alloc) +{ + unsigned int x = RICHACE_POSIX_ALWAYS_ALLOWED; + unsigned int owner_mask = alloc->acl->a_owner_mask & ~x; + unsigned int denied = 0; + struct richace *ace; + + if (!((alloc->acl->a_flags & RICHACL_WRITE_THROUGH))) + return 0; + + richacl_for_each_entry(ace, alloc->acl) { + if (richace_is_owner(ace)) { + if (richace_is_allow(ace) && !(owner_mask & denied)) { + richace_change_mask(alloc, &ace, owner_mask); + owner_mask = 0; + } else + richace_change_mask(alloc, &ace, 0); + } else { + if (richace_is_deny(ace)) + denied |= ace->e_mask; + } + } + + if (owner_mask & (denied | + ~alloc->acl->a_other_mask | + ~alloc->acl->a_group_mask)) { + ace = alloc->acl->a_entries; + if (richacl_insert_entry(alloc, &ace)) + return -1; + ace->e_type = RICHACE_ACCESS_ALLOWED_ACE_TYPE; + ace->e_flags = RICHACE_SPECIAL_WHO; + ace->e_mask = owner_mask; + ace->e_id.special = RICHACE_OWNER_SPECIAL_ID; + } + return 0; +} -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:21:20 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4F88B29E5A for ; Tue, 3 Nov 2015 09:21:20 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0C37C8F8033 for ; Tue, 3 Nov 2015 07:21:20 -0800 (PST) X-ASG-Debug-ID: 1446564078-04bdf0330c1fcb60001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 9zh4ChV6wJDOoCXv (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:21:19 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id C5001C0D61A2; Tue, 3 Nov 2015 15:21:18 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZw029477; Tue, 3 Nov 2015 10:21:12 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 32/51] richacl: Set the other permissions to the other mask Date: Tue, 3 Nov 2015 16:17:08 +0100 X-ASG-Orig-Subj: [PATCH v13 32/51] richacl: Set the other permissions to the other mask Message-Id: <1446563847-14005-33-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564079 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Change the acl so that everyone@ is granted the permissions set in the other mask. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_compat.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/fs/richacl_compat.c b/fs/richacl_compat.c index d9fee8b..76183c9 100644 --- a/fs/richacl_compat.c +++ b/fs/richacl_compat.c @@ -462,3 +462,44 @@ richacl_set_owner_permissions(struct richacl_alloc *alloc) } return 0; } + +/** + * richacl_set_other_permissions - set the other permissions to the other mask + * @alloc: acl and number of allocated entries + * @added: permissions added for everyone@ + * + * Change the acl so that everyone@ is granted the permissions set in the other + * mask. This leaves at most one efective everyone@ allow entry at the end of + * the acl. If everyone@ end up being granted additional permissions, these + * permissions are returned in @added. + */ +static int +richacl_set_other_permissions(struct richacl_alloc *alloc, unsigned int *added) +{ + struct richacl *acl = alloc->acl; + unsigned int x = RICHACE_POSIX_ALWAYS_ALLOWED; + unsigned int other_mask = acl->a_other_mask & ~x; + struct richace *ace; + + if (!(other_mask && + (acl->a_flags & RICHACL_WRITE_THROUGH))) + return 0; + + *added = other_mask; + ace = acl->a_entries + acl->a_count - 1; + if (acl->a_count == 0 || + !richace_is_everyone(ace) || + richace_is_inherit_only(ace)) { + ace++; + if (richacl_insert_entry(alloc, &ace)) + return -1; + ace->e_type = RICHACE_ACCESS_ALLOWED_ACE_TYPE; + ace->e_flags = RICHACE_SPECIAL_WHO; + ace->e_mask = other_mask; + ace->e_id.special = RICHACE_EVERYONE_SPECIAL_ID; + } else { + *added &= ~ace->e_mask; + richace_change_mask(alloc, &ace, other_mask); + } + return 0; +} -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:21:27 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C683629E2C for ; Tue, 3 Nov 2015 09:21:27 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8A5C3304043 for ; Tue, 3 Nov 2015 07:21:27 -0800 (PST) X-ASG-Debug-ID: 1446564085-04bdf0330b1fcb70001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id xmVBcCnqZ3dcjV2X (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:21:26 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id AF8428F4E4; Tue, 3 Nov 2015 15:21:25 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRZx029477; Tue, 3 Nov 2015 10:21:19 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 33/51] richacl: Isolate the owner and group classes Date: Tue, 3 Nov 2015 16:17:09 +0100 X-ASG-Orig-Subj: [PATCH v13 33/51] richacl: Isolate the owner and group classes Message-Id: <1446563847-14005-34-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564086 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 When applying the file masks to an acl, we need to ensure that no process gets more permissions than allowed by its file mask. This may require inserting an owner@ deny ace to ensure this if the owner mask contains fewer permissions than the group or other mask. For example, when applying mode 0446 to the following acl: everyone@:rw::allow A deny ace needs to be inserted so that the owner won't get elevated write access: owner@:w::deny everyone@:rw::allow Likewise, we may need to insert group class deny aces if the group mask contains fewer permissions than the other mask. For example, when applying mode 0646 to the following acl: owner@:rw::allow everyone@:rw::allow A deny ace needs to be inserted so that the owning group won't get elevated write access: owner@:rw::allow group@:w::deny everyone@:rw::allow Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_compat.c | 223 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 223 insertions(+) diff --git a/fs/richacl_compat.c b/fs/richacl_compat.c index 76183c9..7553f1a 100644 --- a/fs/richacl_compat.c +++ b/fs/richacl_compat.c @@ -503,3 +503,226 @@ richacl_set_other_permissions(struct richacl_alloc *alloc, unsigned int *added) } return 0; } + +/** + * richacl_max_allowed - maximum permissions that anybody is allowed + */ +static unsigned int +richacl_max_allowed(struct richacl *acl) +{ + struct richace *ace; + unsigned int allowed = 0; + + richacl_for_each_entry_reverse(ace, acl) { + if (richace_is_inherit_only(ace)) + continue; + if (richace_is_allow(ace)) + allowed |= ace->e_mask; + else if (richace_is_deny(ace)) { + if (richace_is_everyone(ace)) + allowed &= ~ace->e_mask; + } + } + return allowed; +} + +/** + * richacl_isolate_owner_class - limit the owner class to the owner file mask + * @alloc: acl and number of allocated entries + * + * POSIX requires that after a chmod, the owner class is granted no more + * permissions than the owner file permission bits. For richacls, this + * means that the owner class must not be granted any permissions that the + * owner mask does not include. + * + * When we apply file masks to an acl which grant more permissions to the group + * or other class than to the owner class, we may end up in a situation where + * the owner is granted additional permissions from other aces. For example, + * given this acl: + * + * everyone@:rwx::allow + * + * when file masks corresponding to mode 0406 are applied, after + * richacl_propagate_everyone() and __richacl_apply_masks(), we end up with: + * + * owner@:r::allow + * everyone@:rw::allow + * + * This acl still grants the owner rw access through the everyone@ allow ace. + * To fix this, we must deny the owner w access: + * + * owner@:w::deny + * owner@:r::allow + * everyone@:rw::allow + */ +static int +richacl_isolate_owner_class(struct richacl_alloc *alloc) +{ + struct richacl *acl = alloc->acl; + struct richace *ace; + unsigned int deny; + + deny = richacl_max_allowed(acl) & ~acl->a_owner_mask; + if (!deny) + return 0; + + /* + * Figure out if we can update an existig OWNER@ DENY entry. + */ + richacl_for_each_entry(ace, acl) { + if (richace_is_inherit_only(ace)) + continue; + if (richace_is_allow(ace)) + break; + if (richace_is_owner(ace)) + return richace_change_mask(alloc, &ace, + ace->e_mask | deny); + } + + /* Insert an owner@ deny entry at the front. */ + ace = acl->a_entries; + if (richacl_insert_entry(alloc, &ace)) + return -1; + ace->e_type = RICHACE_ACCESS_DENIED_ACE_TYPE; + ace->e_flags = RICHACE_SPECIAL_WHO; + ace->e_mask = deny; + ace->e_id.special = RICHACE_OWNER_SPECIAL_ID; + return 0; +} + +/** + * __richacl_isolate_who - isolate entry from everyone@ allow entry + * @alloc: acl and number of allocated entries + * @who: identifier to isolate + * @deny: permissions this identifier should not be allowed + * + * See richacl_isolate_group_class(). + */ +static int +__richacl_isolate_who(struct richacl_alloc *alloc, struct richace *who, + unsigned int deny) +{ + struct richacl *acl = alloc->acl; + struct richace *ace, who_copy; + int n; + + /* + * Compute the permissions already defined for @who. There are no + * everyone@ deny aces left in the acl at this stage. + */ + richacl_for_each_entry(ace, acl) { + if (richace_is_inherit_only(ace)) + continue; + if (richace_is_same_identifier(ace, who)) + deny &= ~ace->e_mask; + } + if (!deny) + return 0; + + /* + * Figure out if we can update an existig deny entry. Start from the + * entry before the trailing everyone@ allow entry. We will not hit + * everyone@ entries in the loop. + */ + for (n = acl->a_count - 2; n != -1; n--) { + ace = acl->a_entries + n; + if (richace_is_inherit_only(ace)) + continue; + if (richace_is_deny(ace)) { + if (richace_is_same_identifier(ace, who)) + return richace_change_mask(alloc, &ace, + ace->e_mask | deny); + } else if (richace_is_allow(ace) && + (ace->e_mask & deny)) + break; + } + + /* + * Insert a new entry before the trailing everyone@ deny entry. + */ + richace_copy(&who_copy, who); + ace = acl->a_entries + acl->a_count - 1; + if (richacl_insert_entry(alloc, &ace)) + return -1; + richace_copy(ace, &who_copy); + ace->e_type = RICHACE_ACCESS_DENIED_ACE_TYPE; + ace->e_flags &= ~RICHACE_INHERITANCE_FLAGS; + ace->e_mask = deny; + return 0; +} + +/** + * richacl_isolate_group_class - limit the group class to the group file mask + * @alloc: acl and number of allocated entries + * @deny: additional permissions to deny + * + * POSIX requires that after a chmod, the group class is granted no more + * permissions than the group file permission bits. For richacls, this + * means that the group class must not be granted any permissions that the + * group mask does not include. + * + * When we apply file masks to an acl which grant more permissions to the other + * class than to the group class, we may end up in a situation where processes + * in the group class are granted additional permission from other aces. For + * example, given this acl: + * + * joe:rwx::allow + * everyone@:rwx::allow + * + * when file masks corresponding to mode 0646 are applied, after + * richacl_propagate_everyone() and __richacl_apply_masks(), we end up with: + * + * joe:r::allow + * owner@:rw::allow + * group@:r::allow + * everyone@:rw::allow + * + * This acl still grants joe and group@ rw access through the everyone@ allow + * ace. To fix this, we must deny w access to group class aces before the + * everyone@ allow ace at the end of the acl: + * + * joe:r::allow + * owner@:rw::allow + * group@:r::allow + * joe:w::deny + * group@:w::deny + * everyone@:rw::allow + */ +static int +richacl_isolate_group_class(struct richacl_alloc *alloc, unsigned int deny) +{ + struct richace who = { + .e_flags = RICHACE_SPECIAL_WHO, + .e_id.special = RICHACE_GROUP_SPECIAL_ID, + }; + struct richace *ace; + + if (!alloc->acl->a_count) + return 0; + ace = alloc->acl->a_entries + alloc->acl->a_count - 1; + if (richace_is_inherit_only(ace) || !richace_is_everyone(ace)) + return 0; + deny |= ace->e_mask & ~alloc->acl->a_group_mask; + + if (deny) { + unsigned int n; + + if (__richacl_isolate_who(alloc, &who, deny)) + return -1; + /* + * Start from the entry before the trailing everyone@ allow + * entry. We will not hit everyone@ entries in the loop. + */ + for (n = alloc->acl->a_count - 2; n != -1; n--) { + ace = alloc->acl->a_entries + n; + + if (richace_is_inherit_only(ace) || + richace_is_owner(ace) || + richace_is_group(ace)) + continue; + if (__richacl_isolate_who(alloc, ace, deny)) + return -1; + } + } + return 0; +} -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:21:35 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 71CBB29E2C for ; Tue, 3 Nov 2015 09:21:35 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6026D8F8033 for ; Tue, 3 Nov 2015 07:21:35 -0800 (PST) X-ASG-Debug-ID: 1446564092-04cbb0660e1f7da0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id nEQuG26H7HAHj4jG (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:21:33 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id A35218FAA3; Tue, 3 Nov 2015 15:21:32 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRa0029477; Tue, 3 Nov 2015 10:21:26 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 34/51] richacl: Apply the file masks to a richacl Date: Tue, 3 Nov 2015 16:17:10 +0100 X-ASG-Orig-Subj: [PATCH v13 34/51] richacl: Apply the file masks to a richacl Message-Id: <1446563847-14005-35-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564093 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Put all the pieces of the acl transformation puzzle together for computing a richacl which has the file masks "applied" so that the standard nfsv4 access check algorithm can be used on the richacl. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_compat.c | 101 ++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 3 ++ 2 files changed, 104 insertions(+) diff --git a/fs/richacl_compat.c b/fs/richacl_compat.c index 7553f1a..ea3effd 100644 --- a/fs/richacl_compat.c +++ b/fs/richacl_compat.c @@ -726,3 +726,104 @@ richacl_isolate_group_class(struct richacl_alloc *alloc, unsigned int deny) } return 0; } + +/** + * __richacl_apply_masks - apply the file masks to all aces + * @alloc: acl and number of allocated entries + * + * Apply the owner mask to owner@ aces, the other mask to + * everyone@ aces, and the group mask to all other aces. + * + * The previous transformations have brought the acl into a + * form in which applying the masks will not lead to the + * accidental loss of permissions anymore. + */ +static int +__richacl_apply_masks(struct richacl_alloc *alloc, kuid_t owner) +{ + struct richace *ace; + + richacl_for_each_entry(ace, alloc->acl) { + unsigned int mask; + + if (richace_is_inherit_only(ace) || !richace_is_allow(ace)) + continue; + if (richace_is_owner(ace) || + (richace_is_unix_user(ace) && uid_eq(owner, ace->e_id.uid))) + mask = alloc->acl->a_owner_mask; + else if (richace_is_everyone(ace)) + mask = alloc->acl->a_other_mask; + else + mask = alloc->acl->a_group_mask; + if (richace_change_mask(alloc, &ace, ace->e_mask & mask)) + return -1; + } + return 0; +} + +/** + * richacl_apply_masks - apply the masks to the acl + * + * Transform @acl so that the standard NFSv4 permission check algorithm (which + * is not aware of file masks) will compute the same access decisions as the + * richacl permission check algorithm (which looks at the acl and the file + * masks). + * + * This algorithm is split into several steps: + * + * - Move everyone@ aces to the end of the acl. This simplifies the other + * transformations, and allows the everyone@ allow ace at the end of the + * acl to eventually allow permissions to the other class only. + * + * - Propagate everyone@ permissions up the acl. This transformation makes + * sure that the owner and group class aces won't lose any permissions when + * we apply the other mask to the everyone@ allow ace at the end of the acl. + * + * - Apply the file masks to all aces. + * + * - Make sure everyone is granted the other mask permissions. This step can + * elevate elevate permissions for the owner and group classes, which is + * corrected later. + * + * - Make sure that the group class is not granted any permissions from + * everyone@. + * + * - Make sure the owner is granted the owner mask permissions. + * + * - Make sure the owner is not granted any permissions beyond the owner + * mask from group class aces or from everyone@. + * + * NOTE: Depending on the acl and file masks, this algorithm can increase the + * number of aces by almost a factor of three in the worst case. This may make + * the acl too large for some purposes. + */ +int +richacl_apply_masks(struct richacl **acl, kuid_t owner) +{ + if ((*acl)->a_flags & RICHACL_MASKED) { + struct richacl_alloc alloc = { + .acl = richacl_clone(*acl, GFP_KERNEL), + .count = (*acl)->a_count, + }; + unsigned int added = 0; + + if (!alloc.acl) + return -ENOMEM; + if (richacl_move_everyone_aces_down(&alloc) || + richacl_propagate_everyone(&alloc) || + __richacl_apply_masks(&alloc, owner) || + richacl_set_other_permissions(&alloc, &added) || + richacl_isolate_group_class(&alloc, added) || + richacl_set_owner_permissions(&alloc) || + richacl_isolate_owner_class(&alloc)) { + richacl_put(alloc.acl); + return -ENOMEM; + } + + alloc.acl->a_flags &= ~(RICHACL_WRITE_THROUGH | RICHACL_MASKED); + richacl_put(*acl); + *acl = alloc.acl; + } + return 0; +} +EXPORT_SYMBOL_GPL(richacl_apply_masks); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 7cfa64d..3fdfc57 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -205,4 +205,7 @@ extern int richacl_permission(struct inode *, const struct richacl *, int); extern int richacl_chmod(struct inode *, umode_t); extern struct richacl *richacl_create(umode_t *, struct inode *); +/* richacl_compat.c */ +extern int richacl_apply_masks(struct richacl **, kuid_t); + #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:21:43 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4D02729E66 for ; Tue, 3 Nov 2015 09:21:43 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id BD5D6AC002 for ; Tue, 3 Nov 2015 07:21:42 -0800 (PST) X-ASG-Debug-ID: 1446564100-04cbb0660f1f7db0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id RZoNfxi1SjntA8gc (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:21:40 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id BB905220; Tue, 3 Nov 2015 15:21:39 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRa1029477; Tue, 3 Nov 2015 10:21:33 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 35/51] richacl: Create richacl from mode values Date: Tue, 3 Nov 2015 16:17:11 +0100 X-ASG-Orig-Subj: [PATCH v13 35/51] richacl: Create richacl from mode values Message-Id: <1446563847-14005-36-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564100 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 A file can have "no acl" in the sense that only the file mode permission bits determine access. In that case, the getxattr system call fails with errno == ENODATA (No such attribute). Over the NFSv4 protocol, a file always has an acl, and we convert the file mode permission bits into an equivalent acl with richacl_from_mode. Such "trivial" acls can be converted back to a file mode with richacl_equiv_mode. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_compat.c | 88 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 1 + 2 files changed, 89 insertions(+) diff --git a/fs/richacl_compat.c b/fs/richacl_compat.c index ea3effd..3a11773 100644 --- a/fs/richacl_compat.c +++ b/fs/richacl_compat.c @@ -827,3 +827,91 @@ richacl_apply_masks(struct richacl **acl, kuid_t owner) return 0; } EXPORT_SYMBOL_GPL(richacl_apply_masks); + +/** + * richacl_from_mode - create an acl which corresponds to @mode + * + * The resulting acl doesn't have the RICHACL_MASKED flag set. + * + * @mode: file mode including the file type + */ +struct richacl * +richacl_from_mode(umode_t mode) +{ + unsigned int owner_mask = richacl_mode_to_mask(mode >> 6); + unsigned int group_mask = richacl_mode_to_mask(mode >> 3); + unsigned int other_mask = richacl_mode_to_mask(mode); + unsigned int denied; + unsigned int entries = 0; + struct richacl *acl; + struct richace *ace; + + /* RICHACE_DELETE_CHILD is meaningless for non-directories. */ + if (!S_ISDIR(mode)) { + owner_mask &= ~RICHACE_DELETE_CHILD; + group_mask &= ~RICHACE_DELETE_CHILD; + other_mask &= ~RICHACE_DELETE_CHILD; + } + + denied = ~owner_mask & (group_mask | other_mask); + if (denied) + entries++; /* owner@ deny entry needed */ + if (owner_mask & ~(group_mask & other_mask)) + entries++; /* owner@ allow entry needed */ + denied = ~group_mask & other_mask; + if (denied) + entries++; /* group@ deny entry needed */ + if (group_mask & ~other_mask) + entries++; /* group@ allow entry needed */ + if (other_mask) + entries++; /* everyone@ allow entry needed */ + + acl = richacl_alloc(entries, GFP_KERNEL); + if (!acl) + return NULL; + acl->a_owner_mask = owner_mask; + acl->a_group_mask = group_mask; + acl->a_other_mask = other_mask; + ace = acl->a_entries; + + denied = ~owner_mask & (group_mask | other_mask); + if (denied) { + ace->e_type = RICHACE_ACCESS_DENIED_ACE_TYPE; + ace->e_flags = RICHACE_SPECIAL_WHO; + ace->e_mask = denied; + ace->e_id.special = RICHACE_OWNER_SPECIAL_ID; + ace++; + } + if (owner_mask & ~(group_mask & other_mask)) { + ace->e_type = RICHACE_ACCESS_ALLOWED_ACE_TYPE; + ace->e_flags = RICHACE_SPECIAL_WHO; + ace->e_mask = owner_mask; + ace->e_id.special = RICHACE_OWNER_SPECIAL_ID; + ace++; + } + denied = ~group_mask & other_mask; + if (denied) { + ace->e_type = RICHACE_ACCESS_DENIED_ACE_TYPE; + ace->e_flags = RICHACE_SPECIAL_WHO; + ace->e_mask = denied; + ace->e_id.special = RICHACE_GROUP_SPECIAL_ID; + ace++; + } + if (group_mask & ~other_mask) { + ace->e_type = RICHACE_ACCESS_ALLOWED_ACE_TYPE; + ace->e_flags = RICHACE_SPECIAL_WHO; + ace->e_mask = group_mask; + ace->e_id.special = RICHACE_GROUP_SPECIAL_ID; + ace++; + } + if (other_mask) { + ace->e_type = RICHACE_ACCESS_ALLOWED_ACE_TYPE; + ace->e_flags = RICHACE_SPECIAL_WHO; + ace->e_mask = other_mask; + ace->e_id.special = RICHACE_EVERYONE_SPECIAL_ID; + ace++; + } + + return acl; +} +EXPORT_SYMBOL_GPL(richacl_from_mode); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 3fdfc57..10bfd0f 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -207,5 +207,6 @@ extern struct richacl *richacl_create(umode_t *, struct inode *); /* richacl_compat.c */ extern int richacl_apply_masks(struct richacl **, kuid_t); +extern struct richacl *richacl_from_mode(umode_t); #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:21:48 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A8AB029E6A for ; Tue, 3 Nov 2015 09:21:48 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9800830404E for ; Tue, 3 Nov 2015 07:21:48 -0800 (PST) X-ASG-Debug-ID: 1446564106-04cbb0660d1f7dc0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 7d7hm44F5ybQeABT (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:21:47 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 81E0149DAD; Tue, 3 Nov 2015 15:21:46 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRa2029477; Tue, 3 Nov 2015 10:21:40 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 36/51] nfsd: Keep list of acls to dispose of in compoundargs Date: Tue, 3 Nov 2015 16:17:12 +0100 X-ASG-Orig-Subj: [PATCH v13 36/51] nfsd: Keep list of acls to dispose of in compoundargs Message-Id: <1446563847-14005-37-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564107 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 We will decode acls in requests into richacls. Even if unlikely, there can be more than one acl in a single request; those richacls need to be richacl_put() at the end of the request instead of kfree()d, so keep a list of acls in compoundargs for that. Signed-off-by: Andreas Gruenbacher Acked-by: J. Bruce Fields --- fs/nfsd/nfs4xdr.c | 27 +++++++++++++++++++++++++++ fs/nfsd/xdr4.h | 6 ++++++ 2 files changed, 33 insertions(+) diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 51c9e9c..b8db5a7 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -40,6 +40,7 @@ #include #include #include +#include #include "idmap.h" #include "acl.h" @@ -196,6 +197,24 @@ svcxdr_tmpalloc(struct nfsd4_compoundargs *argp, u32 len) return tb->buf; } +static struct richacl * +svcxdr_alloc_richacl(struct nfsd4_compoundargs *argp, u32 nace) +{ + struct svcxdr_richacl *acls; + + acls = kmalloc(sizeof(*acls), GFP_KERNEL); + if (!acls) + return NULL; + acls->acl = richacl_alloc(nace, GFP_KERNEL); + if (!acls->acl) { + kfree(acls); + return NULL; + } + acls->next = argp->acls; + argp->acls = acls; + return acls->acl; +} + /* * For xdr strings that need to be passed to other kernel api's * as null-terminated strings. @@ -4437,6 +4456,13 @@ int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp) args->to_free = tb->next; kfree(tb); } + while (args->acls) { + struct svcxdr_richacl *acls = args->acls; + + args->acls = acls->next; + richacl_put(acls->acl); + kfree(acls); + } return 1; } @@ -4455,6 +4481,7 @@ nfs4svc_decode_compoundargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_comp args->pagelen = rqstp->rq_arg.page_len; args->tmpp = NULL; args->to_free = NULL; + args->acls = NULL; args->ops = args->iops; args->rqstp = rqstp; diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h index 9f99100..b698585 100644 --- a/fs/nfsd/xdr4.h +++ b/fs/nfsd/xdr4.h @@ -570,6 +570,11 @@ struct svcxdr_tmpbuf { char buf[]; }; +struct svcxdr_richacl { + struct svcxdr_richacl *next; + struct richacl *acl; +}; + struct nfsd4_compoundargs { /* scratch variables for XDR decode */ __be32 * p; @@ -579,6 +584,7 @@ struct nfsd4_compoundargs { __be32 tmp[8]; __be32 * tmpp; struct svcxdr_tmpbuf *to_free; + struct svcxdr_richacl *acls; struct svc_rqst *rqstp; -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:21:58 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1882B29E66 for ; Tue, 3 Nov 2015 09:21:58 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id EAD19304039 for ; Tue, 3 Nov 2015 07:21:57 -0800 (PST) X-ASG-Debug-ID: 1446564114-04cb6c7b861ddcd0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ajYg9kkO98PbkGGo (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:21:54 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 71CD391588; Tue, 3 Nov 2015 15:21:53 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRa3029477; Tue, 3 Nov 2015 10:21:47 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 37/51] nfsd: Use richacls as internal acl representation Date: Tue, 3 Nov 2015 16:17:13 +0100 X-ASG-Orig-Subj: [PATCH v13 37/51] nfsd: Use richacls as internal acl representation Message-Id: <1446563847-14005-38-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564114 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 When converting from NFSv4 ACLs to POSIX ACLs, nfsd so far was using struct nfs4_acl as its internal representation. This representation is a subset of richacls, so get rid of struct nfs4_acl. Richacls even have a more compact in-memory representation, so a few more ACL entries can easily be supported. Signed-off-by: Andreas Gruenbacher Acked-by: J. Bruce Fields --- fs/Kconfig | 6 + fs/nfs_common/Makefile | 1 + fs/nfs_common/nfs4acl.c | 44 ++++++ fs/nfsd/Kconfig | 1 + fs/nfsd/acl.h | 24 ++-- fs/nfsd/nfs4acl.c | 368 ++++++++++++++++++++++-------------------------- fs/nfsd/nfs4proc.c | 15 +- fs/nfsd/nfs4xdr.c | 64 +++------ fs/nfsd/xdr4.h | 6 +- include/linux/nfs4.h | 23 --- include/linux/nfs4acl.h | 7 + 11 files changed, 274 insertions(+), 285 deletions(-) create mode 100644 fs/nfs_common/nfs4acl.c create mode 100644 include/linux/nfs4acl.h diff --git a/fs/Kconfig b/fs/Kconfig index bff2879..68bc3e1 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -265,6 +265,12 @@ config NFS_COMMON depends on NFSD || NFS_FS || LOCKD default y +config NFS_RICHACL + bool + depends on NFSD_V4 || NFS_V4 + select FS_RICHACL + default y + source "net/sunrpc/Kconfig" source "fs/ceph/Kconfig" source "fs/cifs/Kconfig" diff --git a/fs/nfs_common/Makefile b/fs/nfs_common/Makefile index d153ca3..e055139 100644 --- a/fs/nfs_common/Makefile +++ b/fs/nfs_common/Makefile @@ -4,5 +4,6 @@ obj-$(CONFIG_NFS_ACL_SUPPORT) += nfs_acl.o nfs_acl-objs := nfsacl.o +obj-$(CONFIG_NFS_RICHACL) += nfs4acl.o obj-$(CONFIG_GRACE_PERIOD) += grace.o diff --git a/fs/nfs_common/nfs4acl.c b/fs/nfs_common/nfs4acl.c new file mode 100644 index 0000000..02df064 --- /dev/null +++ b/fs/nfs_common/nfs4acl.c @@ -0,0 +1,44 @@ +#include +#include +#include + +static struct special_id { + char *who; + int len; +} special_who_map[] = { + [RICHACE_OWNER_SPECIAL_ID] = { + .who = "OWNER@", + .len = sizeof("OWNER@") - 1 }, + [RICHACE_GROUP_SPECIAL_ID] = { + .who = "GROUP@", + .len = sizeof("GROUP@") - 1 }, + [RICHACE_EVERYONE_SPECIAL_ID] = { + .who = "EVERYONE@", + .len = sizeof("EVERYONE@") - 1 } +}; + +int nfs4acl_who_to_special_id(const char *who, u32 len) +{ + int n; + + for (n = 0; n < ARRAY_SIZE(special_who_map); n++) { + if (len == special_who_map[n].len && + !memcmp(who, special_who_map[n].who, len)) + return n; + } + return -1; +} +EXPORT_SYMBOL(nfs4acl_who_to_special_id); + +bool nfs4acl_special_id_to_who(unsigned int special_who, + const char **who, unsigned int *len) +{ + struct special_id *special = &special_who_map[special_who]; + + if (special_who > ARRAY_SIZE(special_who_map) || !special->len) + return false; + *who = special->who; + *len = special->len; + return true; +} +EXPORT_SYMBOL(nfs4acl_special_id_to_who); diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig index a0b77fc..811379a 100644 --- a/fs/nfsd/Kconfig +++ b/fs/nfsd/Kconfig @@ -70,6 +70,7 @@ config NFSD_V4 depends on NFSD && PROC_FS select NFSD_V3 select FS_POSIX_ACL + select FS_RICHACL select SUNRPC_GSS select CRYPTO select GRACE_PERIOD diff --git a/fs/nfsd/acl.h b/fs/nfsd/acl.h index 4cd7c69..1c5deb5 100644 --- a/fs/nfsd/acl.h +++ b/fs/nfsd/acl.h @@ -35,25 +35,27 @@ #ifndef LINUX_NFS4_ACL_H #define LINUX_NFS4_ACL_H -struct nfs4_acl; +struct richacl; +struct richace; struct svc_fh; struct svc_rqst; /* * Maximum ACL we'll accept from a client; chosen (somewhat * arbitrarily) so that kmalloc'ing the ACL shouldn't require a - * high-order allocation. This allows 204 ACEs on x86_64: + * high-order allocation. This allows 339 ACEs on x86_64: */ -#define NFS4_ACL_MAX ((PAGE_SIZE - sizeof(struct nfs4_acl)) \ - / sizeof(struct nfs4_ace)) +#define NFSD4_ACL_MAX ((PAGE_SIZE - sizeof(struct richacl)) \ + / sizeof(struct richace)) -int nfs4_acl_bytes(int entries); -int nfs4_acl_get_whotype(char *, u32); -__be32 nfs4_acl_write_who(struct xdr_stream *xdr, int who); +__be32 nfsd4_decode_ace_who(struct richace *ace, struct svc_rqst *rqstp, + char *who, u32 len); +__be32 nfsd4_encode_ace_who(struct xdr_stream *xdr, struct svc_rqst *rqstp, + struct richace *ace); -int nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry, - struct nfs4_acl **acl); -__be32 nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, - struct nfs4_acl *acl); +int nfsd4_get_acl(struct svc_rqst *rqstp, struct dentry *dentry, + struct richacl **acl); +__be32 nfsd4_set_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, + struct richacl *acl); #endif /* LINUX_NFS4_ACL_H */ diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c index 6adabd6..6d3bb72 100644 --- a/fs/nfsd/nfs4acl.c +++ b/fs/nfsd/nfs4acl.c @@ -37,46 +37,50 @@ #include #include #include +#include +#include +#include #include "nfsfh.h" #include "nfsd.h" +#include "idmap.h" #include "acl.h" #include "vfs.h" -#define NFS4_ACL_TYPE_DEFAULT 0x01 -#define NFS4_ACL_DIR 0x02 -#define NFS4_ACL_OWNER 0x04 +#define FLAG_DEFAULT_ACL 0x01 +#define FLAG_DIRECTORY 0x02 +#define FLAG_OWNER 0x04 /* mode bit translations: */ -#define NFS4_READ_MODE (NFS4_ACE_READ_DATA) -#define NFS4_WRITE_MODE (NFS4_ACE_WRITE_DATA | NFS4_ACE_APPEND_DATA) -#define NFS4_EXECUTE_MODE NFS4_ACE_EXECUTE -#define NFS4_ANYONE_MODE (NFS4_ACE_READ_ATTRIBUTES | NFS4_ACE_READ_ACL | NFS4_ACE_SYNCHRONIZE) -#define NFS4_OWNER_MODE (NFS4_ACE_WRITE_ATTRIBUTES | NFS4_ACE_WRITE_ACL) +#define RICHACE_READ_MODE (RICHACE_READ_DATA) +#define RICHACE_WRITE_MODE (RICHACE_WRITE_DATA | RICHACE_APPEND_DATA) +#define RICHACE_EXECUTE_MODE RICHACE_EXECUTE +#define RICHACE_ANYONE_MODE (RICHACE_READ_ATTRIBUTES | RICHACE_READ_ACL | RICHACE_SYNCHRONIZE) +#define RICHACE_OWNER_MODE (RICHACE_WRITE_ATTRIBUTES | RICHACE_WRITE_ACL) /* flags used to simulate posix default ACLs */ -#define NFS4_INHERITANCE_FLAGS (NFS4_ACE_FILE_INHERIT_ACE \ - | NFS4_ACE_DIRECTORY_INHERIT_ACE) - -#define NFS4_SUPPORTED_FLAGS (NFS4_INHERITANCE_FLAGS \ - | NFS4_ACE_INHERIT_ONLY_ACE \ - | NFS4_ACE_IDENTIFIER_GROUP) +#define RICHACE_SUPPORTED_FLAGS ( \ + RICHACE_FILE_INHERIT_ACE | \ + RICHACE_DIRECTORY_INHERIT_ACE | \ + RICHACE_INHERIT_ONLY_ACE | \ + RICHACE_IDENTIFIER_GROUP | \ + RICHACE_SPECIAL_WHO) static u32 mask_from_posix(unsigned short perm, unsigned int flags) { - int mask = NFS4_ANYONE_MODE; + int mask = RICHACE_ANYONE_MODE; - if (flags & NFS4_ACL_OWNER) - mask |= NFS4_OWNER_MODE; + if (flags & FLAG_OWNER) + mask |= RICHACE_OWNER_MODE; if (perm & ACL_READ) - mask |= NFS4_READ_MODE; + mask |= RICHACE_READ_MODE; if (perm & ACL_WRITE) - mask |= NFS4_WRITE_MODE; - if ((perm & ACL_WRITE) && (flags & NFS4_ACL_DIR)) - mask |= NFS4_ACE_DELETE_CHILD; + mask |= RICHACE_WRITE_MODE; + if ((perm & ACL_WRITE) && (flags & FLAG_DIRECTORY)) + mask |= RICHACE_DELETE_CHILD; if (perm & ACL_EXECUTE) - mask |= NFS4_EXECUTE_MODE; + mask |= RICHACE_EXECUTE_MODE; return mask; } @@ -86,13 +90,13 @@ deny_mask_from_posix(unsigned short perm, u32 flags) u32 mask = 0; if (perm & ACL_READ) - mask |= NFS4_READ_MODE; + mask |= RICHACE_READ_MODE; if (perm & ACL_WRITE) - mask |= NFS4_WRITE_MODE; - if ((perm & ACL_WRITE) && (flags & NFS4_ACL_DIR)) - mask |= NFS4_ACE_DELETE_CHILD; + mask |= RICHACE_WRITE_MODE; + if ((perm & ACL_WRITE) && (flags & FLAG_DIRECTORY)) + mask |= RICHACE_DELETE_CHILD; if (perm & ACL_EXECUTE) - mask |= NFS4_EXECUTE_MODE; + mask |= RICHACE_EXECUTE_MODE; return mask; } @@ -108,32 +112,33 @@ deny_mask_from_posix(unsigned short perm, u32 flags) static void low_mode_from_nfs4(u32 perm, unsigned short *mode, unsigned int flags) { - u32 write_mode = NFS4_WRITE_MODE; + u32 write_mode = RICHACE_WRITE_MODE; - if (flags & NFS4_ACL_DIR) - write_mode |= NFS4_ACE_DELETE_CHILD; + if (flags & FLAG_DIRECTORY) + write_mode |= RICHACE_DELETE_CHILD; *mode = 0; - if ((perm & NFS4_READ_MODE) == NFS4_READ_MODE) + if ((perm & RICHACE_READ_MODE) == RICHACE_READ_MODE) *mode |= ACL_READ; if ((perm & write_mode) == write_mode) *mode |= ACL_WRITE; - if ((perm & NFS4_EXECUTE_MODE) == NFS4_EXECUTE_MODE) + if ((perm & RICHACE_EXECUTE_MODE) == RICHACE_EXECUTE_MODE) *mode |= ACL_EXECUTE; } -static short ace2type(struct nfs4_ace *); -static void _posix_to_nfsv4_one(struct posix_acl *, struct nfs4_acl *, +static short ace2type(struct richace *); +static void _posix_to_richacl_one(struct posix_acl *, struct richacl_alloc *, unsigned int); int -nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry, - struct nfs4_acl **acl) +nfsd4_get_acl(struct svc_rqst *rqstp, struct dentry *dentry, + struct richacl **acl) { struct inode *inode = d_inode(dentry); int error = 0; struct posix_acl *pacl = NULL, *dpacl = NULL; + struct richacl_alloc alloc; unsigned int flags = 0; - int size = 0; + int count; pacl = get_acl(inode, ACL_TYPE_ACCESS); if (!pacl) @@ -143,10 +148,10 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry, return PTR_ERR(pacl); /* allocate for worst case: one (deny, allow) pair each: */ - size += 2 * pacl->a_count; + count = 2 * pacl->a_count; if (S_ISDIR(inode->i_mode)) { - flags = NFS4_ACL_DIR; + flags = FLAG_DIRECTORY; dpacl = get_acl(inode, ACL_TYPE_DEFAULT); if (IS_ERR(dpacl)) { error = PTR_ERR(dpacl); @@ -154,20 +159,20 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry, } if (dpacl) - size += 2 * dpacl->a_count; + count += 2 * dpacl->a_count; } - *acl = kmalloc(nfs4_acl_bytes(size), GFP_KERNEL); - if (*acl == NULL) { + if (!richacl_prepare(&alloc, count)) { error = -ENOMEM; goto out; } - (*acl)->naces = 0; - _posix_to_nfsv4_one(pacl, *acl, flags & ~NFS4_ACL_TYPE_DEFAULT); + _posix_to_richacl_one(pacl, &alloc, flags); if (dpacl) - _posix_to_nfsv4_one(dpacl, *acl, flags | NFS4_ACL_TYPE_DEFAULT); + _posix_to_richacl_one(dpacl, &alloc, flags | FLAG_DEFAULT_ACL); + + *acl = alloc.acl; out: posix_acl_release(dpacl); @@ -230,21 +235,22 @@ summarize_posix_acl(struct posix_acl *acl, struct posix_acl_summary *pas) /* We assume the acl has been verified with posix_acl_valid. */ static void -_posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl, - unsigned int flags) +_posix_to_richacl_one(struct posix_acl *pacl, struct richacl_alloc *alloc, + unsigned int flags) { struct posix_acl_entry *pa, *group_owner_entry; - struct nfs4_ace *ace; + struct richace *ace; struct posix_acl_summary pas; unsigned short deny; - int eflag = ((flags & NFS4_ACL_TYPE_DEFAULT) ? - NFS4_INHERITANCE_FLAGS | NFS4_ACE_INHERIT_ONLY_ACE : 0); + int e_flags = ((flags & FLAG_DEFAULT_ACL) ? + (RICHACE_FILE_INHERIT_ACE | + RICHACE_DIRECTORY_INHERIT_ACE | + RICHACE_INHERIT_ONLY_ACE) : 0); BUG_ON(pacl->a_count < 3); summarize_posix_acl(pacl, &pas); pa = pacl->a_entries; - ace = acl->aces + acl->naces; /* We could deny everything not granted by the owner: */ deny = ~pas.owner; @@ -254,42 +260,35 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl, */ deny &= pas.users | pas.group | pas.groups | pas.other; if (deny) { - ace->type = NFS4_ACE_ACCESS_DENIED_ACE_TYPE; - ace->flag = eflag; - ace->access_mask = deny_mask_from_posix(deny, flags); - ace->whotype = NFS4_ACL_WHO_OWNER; - ace++; - acl->naces++; + ace = richacl_append_entry(alloc); + ace->e_type = RICHACE_ACCESS_DENIED_ACE_TYPE; + ace->e_flags = e_flags | RICHACE_SPECIAL_WHO; + ace->e_mask = deny_mask_from_posix(deny, flags); + ace->e_id.special = RICHACE_OWNER_SPECIAL_ID; } - ace->type = NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE; - ace->flag = eflag; - ace->access_mask = mask_from_posix(pa->e_perm, flags | NFS4_ACL_OWNER); - ace->whotype = NFS4_ACL_WHO_OWNER; - ace++; - acl->naces++; + ace = richacl_append_entry(alloc); + ace->e_type = RICHACE_ACCESS_ALLOWED_ACE_TYPE; + ace->e_flags = e_flags | RICHACE_SPECIAL_WHO; + ace->e_mask = mask_from_posix(pa->e_perm, flags | FLAG_OWNER); + ace->e_id.special = RICHACE_OWNER_SPECIAL_ID; pa++; while (pa->e_tag == ACL_USER) { deny = ~(pa->e_perm & pas.mask); deny &= pas.groups | pas.group | pas.other; if (deny) { - ace->type = NFS4_ACE_ACCESS_DENIED_ACE_TYPE; - ace->flag = eflag; - ace->access_mask = deny_mask_from_posix(deny, flags); - ace->whotype = NFS4_ACL_WHO_NAMED; - ace->who_uid = pa->e_uid; - ace++; - acl->naces++; + ace = richacl_append_entry(alloc); + ace->e_type = RICHACE_ACCESS_DENIED_ACE_TYPE; + ace->e_flags = e_flags; + ace->e_mask = deny_mask_from_posix(deny, flags); + ace->e_id.uid = pa->e_uid; } - ace->type = NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE; - ace->flag = eflag; - ace->access_mask = mask_from_posix(pa->e_perm & pas.mask, - flags); - ace->whotype = NFS4_ACL_WHO_NAMED; - ace->who_uid = pa->e_uid; - ace++; - acl->naces++; + ace = richacl_append_entry(alloc); + ace->e_type = RICHACE_ACCESS_ALLOWED_ACE_TYPE; + ace->e_flags = e_flags; + ace->e_mask = mask_from_posix(pa->e_perm & pas.mask, flags); + ace->e_id.uid = pa->e_uid; pa++; } @@ -300,23 +299,19 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl, group_owner_entry = pa; - ace->type = NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE; - ace->flag = eflag; - ace->access_mask = mask_from_posix(pas.group, flags); - ace->whotype = NFS4_ACL_WHO_GROUP; - ace++; - acl->naces++; + ace = richacl_append_entry(alloc); + ace->e_type = RICHACE_ACCESS_ALLOWED_ACE_TYPE; + ace->e_flags = e_flags | RICHACE_SPECIAL_WHO; + ace->e_mask = mask_from_posix(pas.group, flags); + ace->e_id.special = RICHACE_GROUP_SPECIAL_ID; pa++; while (pa->e_tag == ACL_GROUP) { - ace->type = NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE; - ace->flag = eflag | NFS4_ACE_IDENTIFIER_GROUP; - ace->access_mask = mask_from_posix(pa->e_perm & pas.mask, - flags); - ace->whotype = NFS4_ACL_WHO_NAMED; - ace->who_gid = pa->e_gid; - ace++; - acl->naces++; + ace = richacl_append_entry(alloc); + ace->e_type = RICHACE_ACCESS_ALLOWED_ACE_TYPE; + ace->e_flags = e_flags | RICHACE_IDENTIFIER_GROUP; + ace->e_mask = mask_from_posix(pa->e_perm & pas.mask, flags); + ace->e_id.gid = pa->e_gid; pa++; } @@ -326,12 +321,11 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl, deny = ~pas.group & pas.other; if (deny) { - ace->type = NFS4_ACE_ACCESS_DENIED_ACE_TYPE; - ace->flag = eflag; - ace->access_mask = deny_mask_from_posix(deny, flags); - ace->whotype = NFS4_ACL_WHO_GROUP; - ace++; - acl->naces++; + ace = richacl_append_entry(alloc); + ace->e_type = RICHACE_ACCESS_DENIED_ACE_TYPE; + ace->e_flags = e_flags | RICHACE_SPECIAL_WHO; + ace->e_mask = deny_mask_from_posix(deny, flags); + ace->e_id.special = RICHACE_GROUP_SPECIAL_ID; } pa++; @@ -339,24 +333,22 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl, deny = ~(pa->e_perm & pas.mask); deny &= pas.other; if (deny) { - ace->type = NFS4_ACE_ACCESS_DENIED_ACE_TYPE; - ace->flag = eflag | NFS4_ACE_IDENTIFIER_GROUP; - ace->access_mask = deny_mask_from_posix(deny, flags); - ace->whotype = NFS4_ACL_WHO_NAMED; - ace->who_gid = pa->e_gid; - ace++; - acl->naces++; + ace = richacl_append_entry(alloc); + ace->e_type = RICHACE_ACCESS_DENIED_ACE_TYPE; + ace->e_flags = e_flags | RICHACE_IDENTIFIER_GROUP; + ace->e_mask = deny_mask_from_posix(deny, flags); + ace->e_id.gid = pa->e_gid; } pa++; } if (pa->e_tag == ACL_MASK) pa++; - ace->type = NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE; - ace->flag = eflag; - ace->access_mask = mask_from_posix(pa->e_perm, flags); - ace->whotype = NFS4_ACL_WHO_EVERYONE; - acl->naces++; + ace = richacl_append_entry(alloc); + ace->e_type = RICHACE_ACCESS_ALLOWED_ACE_TYPE; + ace->e_flags = e_flags | RICHACE_SPECIAL_WHO; + ace->e_mask = mask_from_posix(pa->e_perm, flags); + ace->e_id.special = RICHACE_EVERYONE_SPECIAL_ID; } static bool @@ -500,7 +492,7 @@ posix_state_to_acl(struct posix_acl_state *state, unsigned int flags) * and effective cases: when there are no inheritable ACEs, * calls ->set_acl with a NULL ACL structure. */ - if (state->empty && (flags & NFS4_ACL_TYPE_DEFAULT)) + if (state->empty && (flags & FLAG_DEFAULT_ACL)) return NULL; /* @@ -619,24 +611,24 @@ static void allow_bits_array(struct posix_ace_state_array *a, u32 mask) } static void process_one_v4_ace(struct posix_acl_state *state, - struct nfs4_ace *ace) + struct richace *ace) { - u32 mask = ace->access_mask; + u32 mask = ace->e_mask; int i; state->empty = 0; switch (ace2type(ace)) { case ACL_USER_OBJ: - if (ace->type == NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE) { + if (ace->e_type == RICHACE_ACCESS_ALLOWED_ACE_TYPE) { allow_bits(&state->owner, mask); } else { deny_bits(&state->owner, mask); } break; case ACL_USER: - i = find_uid(state, ace->who_uid); - if (ace->type == NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE) { + i = find_uid(state, ace->e_id.uid); + if (ace->e_type == RICHACE_ACCESS_ALLOWED_ACE_TYPE) { allow_bits(&state->users->aces[i].perms, mask); } else { deny_bits(&state->users->aces[i].perms, mask); @@ -645,7 +637,7 @@ static void process_one_v4_ace(struct posix_acl_state *state, } break; case ACL_GROUP_OBJ: - if (ace->type == NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE) { + if (ace->e_type == RICHACE_ACCESS_ALLOWED_ACE_TYPE) { allow_bits(&state->group, mask); } else { deny_bits(&state->group, mask); @@ -657,8 +649,8 @@ static void process_one_v4_ace(struct posix_acl_state *state, } break; case ACL_GROUP: - i = find_gid(state, ace->who_gid); - if (ace->type == NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE) { + i = find_gid(state, ace->e_id.gid); + if (ace->e_type == RICHACE_ACCESS_ALLOWED_ACE_TYPE) { allow_bits(&state->groups->aces[i].perms, mask); } else { deny_bits(&state->groups->aces[i].perms, mask); @@ -671,7 +663,7 @@ static void process_one_v4_ace(struct posix_acl_state *state, } break; case ACL_OTHER: - if (ace->type == NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE) { + if (ace->e_type == RICHACE_ACCESS_ALLOWED_ACE_TYPE) { allow_bits(&state->owner, mask); allow_bits(&state->group, mask); allow_bits(&state->other, mask); @@ -689,32 +681,33 @@ static void process_one_v4_ace(struct posix_acl_state *state, } } -static int nfs4_acl_nfsv4_to_posix(struct nfs4_acl *acl, +static int nfs4_richacl_to_posix(struct richacl *acl, struct posix_acl **pacl, struct posix_acl **dpacl, unsigned int flags) { struct posix_acl_state effective_acl_state, default_acl_state; - struct nfs4_ace *ace; + struct richace *ace; int ret; - ret = init_state(&effective_acl_state, acl->naces); + ret = init_state(&effective_acl_state, acl->a_count); if (ret) return ret; - ret = init_state(&default_acl_state, acl->naces); + ret = init_state(&default_acl_state, acl->a_count); if (ret) goto out_estate; ret = -EINVAL; - for (ace = acl->aces; ace < acl->aces + acl->naces; ace++) { - if (ace->type != NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE && - ace->type != NFS4_ACE_ACCESS_DENIED_ACE_TYPE) + richacl_for_each_entry(ace, acl) { + if (ace->e_type != RICHACE_ACCESS_ALLOWED_ACE_TYPE && + ace->e_type != RICHACE_ACCESS_DENIED_ACE_TYPE) goto out_dstate; - if (ace->flag & ~NFS4_SUPPORTED_FLAGS) + if (ace->e_flags & ~RICHACE_SUPPORTED_FLAGS) goto out_dstate; - if ((ace->flag & NFS4_INHERITANCE_FLAGS) == 0) { + if ((ace->e_flags & (RICHACE_FILE_INHERIT_ACE | + RICHACE_DIRECTORY_INHERIT_ACE)) == 0) { process_one_v4_ace(&effective_acl_state, ace); continue; } - if (!(flags & NFS4_ACL_DIR)) + if (!(flags & FLAG_DIRECTORY)) goto out_dstate; /* * Note that when only one of FILE_INHERIT or DIRECTORY_INHERIT @@ -723,7 +716,7 @@ static int nfs4_acl_nfsv4_to_posix(struct nfs4_acl *acl, */ process_one_v4_ace(&default_acl_state, ace); - if (!(ace->flag & NFS4_ACE_INHERIT_ONLY_ACE)) + if (!(ace->e_flags & RICHACE_INHERIT_ONLY_ACE)) process_one_v4_ace(&effective_acl_state, ace); } *pacl = posix_state_to_acl(&effective_acl_state, flags); @@ -733,7 +726,7 @@ static int nfs4_acl_nfsv4_to_posix(struct nfs4_acl *acl, goto out_dstate; } *dpacl = posix_state_to_acl(&default_acl_state, - flags | NFS4_ACL_TYPE_DEFAULT); + flags | FLAG_DEFAULT_ACL); if (IS_ERR(*dpacl)) { ret = PTR_ERR(*dpacl); *dpacl = NULL; @@ -752,8 +745,7 @@ out_estate: } __be32 -nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, - struct nfs4_acl *acl) +nfsd4_set_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, struct richacl *acl) { __be32 error; int host_error; @@ -774,9 +766,9 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, return nfserr_attrnotsupp; if (S_ISDIR(inode->i_mode)) - flags = NFS4_ACL_DIR; + flags = FLAG_DIRECTORY; - host_error = nfs4_acl_nfsv4_to_posix(acl, &pacl, &dpacl, flags); + host_error = nfs4_richacl_to_posix(acl, &pacl, &dpacl, flags); if (host_error == -EINVAL) return nfserr_attrnotsupp; if (host_error < 0) @@ -803,82 +795,62 @@ out_nfserr: static short -ace2type(struct nfs4_ace *ace) +ace2type(struct richace *ace) { - switch (ace->whotype) { - case NFS4_ACL_WHO_NAMED: - return (ace->flag & NFS4_ACE_IDENTIFIER_GROUP ? - ACL_GROUP : ACL_USER); - case NFS4_ACL_WHO_OWNER: + if (ace->e_flags & RICHACE_SPECIAL_WHO) { + switch (ace->e_id.special) { + case RICHACE_OWNER_SPECIAL_ID: return ACL_USER_OBJ; - case NFS4_ACL_WHO_GROUP: + case RICHACE_GROUP_SPECIAL_ID: return ACL_GROUP_OBJ; - case NFS4_ACL_WHO_EVERYONE: + case RICHACE_EVERYONE_SPECIAL_ID: return ACL_OTHER; + default: + BUG(); + } } - BUG(); - return -1; -} - -/* - * return the size of the struct nfs4_acl required to represent an acl - * with @entries entries. - */ -int nfs4_acl_bytes(int entries) -{ - return sizeof(struct nfs4_acl) + entries * sizeof(struct nfs4_ace); + return ace->e_flags & RICHACE_IDENTIFIER_GROUP ? ACL_GROUP : ACL_USER; } -static struct { - char *string; - int stringlen; - int type; -} s2t_map[] = { - { - .string = "OWNER@", - .stringlen = sizeof("OWNER@") - 1, - .type = NFS4_ACL_WHO_OWNER, - }, - { - .string = "GROUP@", - .stringlen = sizeof("GROUP@") - 1, - .type = NFS4_ACL_WHO_GROUP, - }, - { - .string = "EVERYONE@", - .stringlen = sizeof("EVERYONE@") - 1, - .type = NFS4_ACL_WHO_EVERYONE, - }, -}; - -int -nfs4_acl_get_whotype(char *p, u32 len) +__be32 nfsd4_decode_ace_who(struct richace *ace, struct svc_rqst *rqstp, + char *who, u32 len) { - int i; - - for (i = 0; i < ARRAY_SIZE(s2t_map); i++) { - if (s2t_map[i].stringlen == len && - 0 == memcmp(s2t_map[i].string, p, len)) - return s2t_map[i].type; + int special_id; + + special_id = nfs4acl_who_to_special_id(who, len); + if (special_id >= 0) { + ace->e_flags |= RICHACE_SPECIAL_WHO; + ace->e_flags &= ~RICHACE_IDENTIFIER_GROUP; + ace->e_id.special = special_id; + return nfs_ok; } - return NFS4_ACL_WHO_NAMED; + if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) + return nfsd_map_name_to_gid(rqstp, who, len, &ace->e_id.gid); + else + return nfsd_map_name_to_uid(rqstp, who, len, &ace->e_id.uid); } -__be32 nfs4_acl_write_who(struct xdr_stream *xdr, int who) +__be32 nfsd4_encode_ace_who(struct xdr_stream *xdr, struct svc_rqst *rqstp, + struct richace *ace) { - __be32 *p; - int i; - - for (i = 0; i < ARRAY_SIZE(s2t_map); i++) { - if (s2t_map[i].type != who) - continue; - p = xdr_reserve_space(xdr, s2t_map[i].stringlen + 4); + if (ace->e_flags & RICHACE_SPECIAL_WHO) { + unsigned int special_id = ace->e_id.special; + const char *who; + unsigned int len; + __be32 *p; + + if (!nfs4acl_special_id_to_who(special_id, &who, &len)) { + WARN_ON_ONCE(1); + return nfserr_serverfault; + } + p = xdr_reserve_space(xdr, len + 4); if (!p) return nfserr_resource; - p = xdr_encode_opaque(p, s2t_map[i].string, - s2t_map[i].stringlen); + p = xdr_encode_opaque(p, who, len); return 0; } - WARN_ON_ONCE(1); - return nfserr_serverfault; + if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) + return nfsd4_encode_group(xdr, rqstp, ace->e_id.gid); + else + return nfsd4_encode_user(xdr, rqstp, ace->e_id.uid); } diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 4ce6b97..2430235 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -159,12 +159,12 @@ is_create_with_attrs(struct nfsd4_open *open) * in the returned attr bitmap. */ static void -do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, - struct nfs4_acl *acl, u32 *bmval) +do_set_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, struct richacl *acl, + u32 *bmval) { __be32 status; - status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); + status = nfsd4_set_acl(rqstp, fhp, acl); if (status) /* * We should probably fail the whole open at this point, @@ -299,7 +299,7 @@ do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, stru goto out; if (is_create_with_attrs(open) && open->op_acl != NULL) - do_set_nfs4_acl(rqstp, *resfh, open->op_acl, open->op_bmval); + do_set_acl(rqstp, *resfh, open->op_acl, open->op_bmval); nfsd4_set_open_owner_reply_cache(cstate, open, *resfh); accmode = NFSD_MAY_NOP; @@ -672,8 +672,7 @@ nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, nfsd4_security_inode_setsecctx(&resfh, &create->cr_label, create->cr_bmval); if (create->cr_acl != NULL) - do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, - create->cr_bmval); + do_set_acl(rqstp, &resfh, create->cr_acl, create->cr_bmval); fh_unlock(&cstate->current_fh); set_change_info(&create->cr_cinfo, &cstate->current_fh); @@ -938,8 +937,8 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, goto out; if (setattr->sa_acl != NULL) - status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, - setattr->sa_acl); + status = nfsd4_set_acl(rqstp, &cstate->current_fh, + setattr->sa_acl); if (status) goto out; if (setattr->sa_label.len) diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index b8db5a7..8603f40 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -303,7 +303,7 @@ nfsd4_decode_bitmap(struct nfsd4_compoundargs *argp, u32 *bmval) static __be32 nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, - struct iattr *iattr, struct nfs4_acl **acl, + struct iattr *iattr, struct richacl **acl, struct xdr_netobj *label) { int expected_len, len = 0; @@ -326,38 +326,31 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, } if (bmval[0] & FATTR4_WORD0_ACL) { u32 nace; - struct nfs4_ace *ace; + struct richace *ace; READ_BUF(4); len += 4; nace = be32_to_cpup(p++); - if (nace > NFS4_ACL_MAX) + if (nace > NFSD4_ACL_MAX) return nfserr_fbig; - *acl = svcxdr_tmpalloc(argp, nfs4_acl_bytes(nace)); + *acl = svcxdr_alloc_richacl(argp, nace); if (*acl == NULL) return nfserr_jukebox; - (*acl)->naces = nace; - for (ace = (*acl)->aces; ace < (*acl)->aces + nace; ace++) { + richacl_for_each_entry(ace, *acl) { READ_BUF(16); len += 16; - ace->type = be32_to_cpup(p++); - ace->flag = be32_to_cpup(p++); - ace->access_mask = be32_to_cpup(p++); + ace->e_type = be32_to_cpup(p++); + ace->e_flags = be32_to_cpup(p++); + ace->e_mask = be32_to_cpup(p++); + if (ace->e_flags & RICHACE_SPECIAL_WHO) + return nfserr_inval; dummy32 = be32_to_cpup(p++); READ_BUF(dummy32); len += XDR_QUADLEN(dummy32) << 2; READMEM(buf, dummy32); - ace->whotype = nfs4_acl_get_whotype(buf, dummy32); - status = nfs_ok; - if (ace->whotype != NFS4_ACL_WHO_NAMED) - ; - else if (ace->flag & NFS4_ACE_IDENTIFIER_GROUP) - status = nfsd_map_name_to_gid(argp->rqstp, - buf, dummy32, &ace->who_gid); - else - status = nfsd_map_name_to_uid(argp->rqstp, - buf, dummy32, &ace->who_uid); + status = nfsd4_decode_ace_who(ace, argp->rqstp, + buf, dummy32); if (status) return status; } @@ -2148,18 +2141,6 @@ static u32 nfs4_file_type(umode_t mode) } static inline __be32 -nfsd4_encode_aclname(struct xdr_stream *xdr, struct svc_rqst *rqstp, - struct nfs4_ace *ace) -{ - if (ace->whotype != NFS4_ACL_WHO_NAMED) - return nfs4_acl_write_who(xdr, ace->whotype); - else if (ace->flag & NFS4_ACE_IDENTIFIER_GROUP) - return nfsd4_encode_group(xdr, rqstp, ace->who_gid); - else - return nfsd4_encode_user(xdr, rqstp, ace->who_uid); -} - -static inline __be32 nfsd4_encode_layout_type(struct xdr_stream *xdr, enum pnfs_layouttype layout_type) { __be32 *p; @@ -2303,7 +2284,7 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, u32 rdattr_err = 0; __be32 status; int err; - struct nfs4_acl *acl = NULL; + struct richacl *acl = NULL; void *context = NULL; int contextlen; bool contextsupport = false; @@ -2349,7 +2330,7 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, fhp = tempfh; } if (bmval0 & FATTR4_WORD0_ACL) { - err = nfsd4_get_nfs4_acl(rqstp, dentry, &acl); + err = nfsd4_get_acl(rqstp, dentry, &acl); if (err == -EOPNOTSUPP) bmval0 &= ~FATTR4_WORD0_ACL; else if (err == -EINVAL) { @@ -2504,7 +2485,7 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, *p++ = cpu_to_be32(rdattr_err); } if (bmval0 & FATTR4_WORD0_ACL) { - struct nfs4_ace *ace; + struct richace *ace; if (acl == NULL) { p = xdr_reserve_space(xdr, 4); @@ -2517,17 +2498,16 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, p = xdr_reserve_space(xdr, 4); if (!p) goto out_resource; - *p++ = cpu_to_be32(acl->naces); + *p++ = cpu_to_be32(acl->a_count); - for (ace = acl->aces; ace < acl->aces + acl->naces; ace++) { + richacl_for_each_entry(ace, acl) { p = xdr_reserve_space(xdr, 4*3); if (!p) goto out_resource; - *p++ = cpu_to_be32(ace->type); - *p++ = cpu_to_be32(ace->flag); - *p++ = cpu_to_be32(ace->access_mask & - NFS4_ACE_MASK_ALL); - status = nfsd4_encode_aclname(xdr, rqstp, ace); + *p++ = cpu_to_be32(ace->e_type); + *p++ = cpu_to_be32(ace->e_flags & ~RICHACE_SPECIAL_WHO); + *p++ = cpu_to_be32(ace->e_mask & NFS4_ACE_MASK_ALL); + status = nfsd4_encode_ace_who(xdr, rqstp, ace); if (status) goto out; } @@ -2792,7 +2772,7 @@ out: if (context) security_release_secctx(context, contextlen); #endif /* CONFIG_NFSD_V4_SECURITY_LABEL */ - kfree(acl); + richacl_put(acl); if (tempfh) { fh_put(tempfh); kfree(tempfh); diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h index b698585..c311066 100644 --- a/fs/nfsd/xdr4.h +++ b/fs/nfsd/xdr4.h @@ -118,7 +118,7 @@ struct nfsd4_create { u32 cr_bmval[3]; /* request */ struct iattr cr_iattr; /* request */ struct nfsd4_change_info cr_cinfo; /* response */ - struct nfs4_acl *cr_acl; + struct richacl *cr_acl; struct xdr_netobj cr_label; }; #define cr_datalen u.link.datalen @@ -248,7 +248,7 @@ struct nfsd4_open { struct nfs4_file *op_file; /* used during processing */ struct nfs4_ol_stateid *op_stp; /* used during processing */ struct nfs4_clnt_odstate *op_odstate; /* used during processing */ - struct nfs4_acl *op_acl; + struct richacl *op_acl; struct xdr_netobj op_label; }; @@ -332,7 +332,7 @@ struct nfsd4_setattr { stateid_t sa_stateid; /* request */ u32 sa_bmval[3]; /* request */ struct iattr sa_iattr; /* request */ - struct nfs4_acl *sa_acl; + struct richacl *sa_acl; struct xdr_netobj sa_label; }; diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index 00121f2..1422fc6 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -16,29 +16,6 @@ #include #include -enum nfs4_acl_whotype { - NFS4_ACL_WHO_NAMED = 0, - NFS4_ACL_WHO_OWNER, - NFS4_ACL_WHO_GROUP, - NFS4_ACL_WHO_EVERYONE, -}; - -struct nfs4_ace { - uint32_t type; - uint32_t flag; - uint32_t access_mask; - int whotype; - union { - kuid_t who_uid; - kgid_t who_gid; - }; -}; - -struct nfs4_acl { - uint32_t naces; - struct nfs4_ace aces[0]; -}; - #define NFS4_MAXLABELLEN 2048 struct nfs4_label { diff --git a/include/linux/nfs4acl.h b/include/linux/nfs4acl.h new file mode 100644 index 0000000..db9f9a6 --- /dev/null +++ b/include/linux/nfs4acl.h @@ -0,0 +1,7 @@ +#ifndef __LINUX_NFS4ACL_H +#define __LINUX_NFS4ACL_H + +int nfs4acl_who_to_special_id(const char *, u32); +bool nfs4acl_special_id_to_who(unsigned int, const char **, unsigned int *); + +#endif -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:22:03 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4005029E72 for ; Tue, 3 Nov 2015 09:22:03 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id ABECFAC009 for ; Tue, 3 Nov 2015 07:22:02 -0800 (PST) X-ASG-Debug-ID: 1446564120-04cb6c7b871ddce0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id bdlJmVUbbkJ8HbqP (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:22:01 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 617128FAA3; Tue, 3 Nov 2015 15:22:00 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRa4029477; Tue, 3 Nov 2015 10:21:54 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 38/51] nfsd: Add richacl support Date: Tue, 3 Nov 2015 16:17:14 +0100 X-ASG-Orig-Subj: [PATCH v13 38/51] nfsd: Add richacl support Message-Id: <1446563847-14005-39-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564120 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On file systems with richacls enabled, get and set richacls directly instead of converting from / to posix acls. Signed-off-by: Andreas Gruenbacher Acked-by: J. Bruce Fields --- fs/nfsd/acl.h | 3 +- fs/nfsd/nfs4acl.c | 124 ++++++++++++++++++++++++++++++++++++++--------------- fs/nfsd/nfs4proc.c | 2 +- fs/nfsd/nfs4xdr.c | 34 +++++++++++---- 4 files changed, 117 insertions(+), 46 deletions(-) diff --git a/fs/nfsd/acl.h b/fs/nfsd/acl.h index 1c5deb5..d73c664 100644 --- a/fs/nfsd/acl.h +++ b/fs/nfsd/acl.h @@ -53,8 +53,7 @@ __be32 nfsd4_decode_ace_who(struct richace *ace, struct svc_rqst *rqstp, __be32 nfsd4_encode_ace_who(struct xdr_stream *xdr, struct svc_rqst *rqstp, struct richace *ace); -int nfsd4_get_acl(struct svc_rqst *rqstp, struct dentry *dentry, - struct richacl **acl); +struct richacl *nfsd4_get_acl(struct svc_rqst *rqstp, struct dentry *dentry); __be32 nfsd4_set_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, struct richacl *acl); diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c index 6d3bb72..f017a76 100644 --- a/fs/nfsd/nfs4acl.c +++ b/fs/nfsd/nfs4acl.c @@ -40,6 +40,8 @@ #include #include #include +#include +#include #include "nfsfh.h" #include "nfsd.h" @@ -129,32 +131,28 @@ static short ace2type(struct richace *); static void _posix_to_richacl_one(struct posix_acl *, struct richacl_alloc *, unsigned int); -int -nfsd4_get_acl(struct svc_rqst *rqstp, struct dentry *dentry, - struct richacl **acl) +static struct richacl * +nfsd4_get_posix_acl(struct svc_rqst *rqstp, struct dentry *dentry) { struct inode *inode = d_inode(dentry); - int error = 0; struct posix_acl *pacl = NULL, *dpacl = NULL; struct richacl_alloc alloc; unsigned int flags = 0; int count; pacl = get_acl(inode, ACL_TYPE_ACCESS); - if (!pacl) - pacl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL); - - if (IS_ERR(pacl)) - return PTR_ERR(pacl); + if (IS_ERR_OR_NULL(pacl)) + return (void *)pacl; - /* allocate for worst case: one (deny, allow) pair each: */ + /* Allocate for worst case: one (deny, allow) pair each. The resulting + acl will be released shortly and won't be cached. */ count = 2 * pacl->a_count; if (S_ISDIR(inode->i_mode)) { flags = FLAG_DIRECTORY; dpacl = get_acl(inode, ACL_TYPE_DEFAULT); if (IS_ERR(dpacl)) { - error = PTR_ERR(dpacl); + alloc.acl = (void *)dpacl; goto rel_pacl; } @@ -163,7 +161,7 @@ nfsd4_get_acl(struct svc_rqst *rqstp, struct dentry *dentry, } if (!richacl_prepare(&alloc, count)) { - error = -ENOMEM; + alloc.acl = ERR_PTR(-ENOMEM); goto out; } @@ -172,13 +170,37 @@ nfsd4_get_acl(struct svc_rqst *rqstp, struct dentry *dentry, if (dpacl) _posix_to_richacl_one(dpacl, &alloc, flags | FLAG_DEFAULT_ACL); - *acl = alloc.acl; - out: posix_acl_release(dpacl); rel_pacl: posix_acl_release(pacl); - return error; + return alloc.acl; +} + +struct richacl * +nfsd4_get_acl(struct svc_rqst *rqstp, struct dentry *dentry) +{ + struct inode *inode = d_inode(dentry); + struct richacl *acl; + int error; + + if (IS_RICHACL(inode)) + acl = get_richacl(inode); + else + acl = nfsd4_get_posix_acl(rqstp, dentry); + if (IS_ERR(acl)) + return acl; + else if (acl == NULL) { + acl = richacl_from_mode(inode->i_mode); + if (acl == NULL) + acl = ERR_PTR(-ENOMEM); + } + error = richacl_apply_masks(&acl, inode->i_uid); + if (error) { + richacl_put(acl); + acl = ERR_PTR(error); + } + return acl; } struct posix_acl_summary { @@ -744,56 +766,88 @@ out_estate: return ret; } -__be32 -nfsd4_set_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, struct richacl *acl) +static int +nfsd4_set_posix_acl(struct svc_rqst *rqstp, struct dentry *dentry, + struct richacl *acl) { - __be32 error; int host_error; - struct dentry *dentry; - struct inode *inode; + struct inode *inode = d_inode(dentry); struct posix_acl *pacl = NULL, *dpacl = NULL; unsigned int flags = 0; - /* Get inode */ - error = fh_verify(rqstp, fhp, 0, NFSD_MAY_SATTR); - if (error) - return error; - - dentry = fhp->fh_dentry; - inode = d_inode(dentry); - if (!inode->i_op->set_acl || !IS_POSIXACL(inode)) - return nfserr_attrnotsupp; + return -EOPNOTSUPP; if (S_ISDIR(inode->i_mode)) flags = FLAG_DIRECTORY; host_error = nfs4_richacl_to_posix(acl, &pacl, &dpacl, flags); if (host_error == -EINVAL) - return nfserr_attrnotsupp; + return -EOPNOTSUPP; if (host_error < 0) - goto out_nfserr; + return host_error; host_error = inode->i_op->set_acl(inode, pacl, ACL_TYPE_ACCESS); if (host_error < 0) goto out_release; - if (S_ISDIR(inode->i_mode)) { + if (S_ISDIR(inode->i_mode)) host_error = inode->i_op->set_acl(inode, dpacl, ACL_TYPE_DEFAULT); - } out_release: posix_acl_release(pacl); posix_acl_release(dpacl); -out_nfserr: + return host_error; +} + +static int +nfsd4_set_richacl(struct svc_rqst *rqstp, struct dentry *dentry, + struct richacl *acl) +{ + int host_error; + struct inode *inode = d_inode(dentry); + size_t size = richacl_xattr_size(acl); + char *buffer; + + if (!inode->i_op->setxattr || !IS_RICHACL(inode)) + return -EOPNOTSUPP; + + richacl_compute_max_masks(acl); + + buffer = kmalloc(size, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + richacl_to_xattr(&init_user_ns, acl, buffer, size); + host_error = inode->i_op->setxattr(dentry, XATTR_NAME_RICHACL, + buffer, size, 0); + kfree(buffer); + return host_error; +} + +__be32 +nfsd4_set_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, struct richacl *acl) +{ + struct dentry *dentry; + int host_error; + __be32 error; + + error = fh_verify(rqstp, fhp, 0, NFSD_MAY_SATTR); + if (error) + return error; + dentry = fhp->fh_dentry; + + if (IS_RICHACL(d_inode(dentry))) + host_error = nfsd4_set_richacl(rqstp, dentry, acl); + else + host_error = nfsd4_set_posix_acl(rqstp, dentry, acl); + if (host_error == -EOPNOTSUPP) return nfserr_attrnotsupp; else return nfserrno(host_error); } - static short ace2type(struct richace *ace) { diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 2430235..1bcfda2 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -110,7 +110,7 @@ check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, * in current environment or not. */ if (bmval[0] & FATTR4_WORD0_ACL) { - if (!IS_POSIXACL(d_inode(dentry))) + if (!IS_ACL(d_inode(dentry))) return nfserr_attrnotsupp; } diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 8603f40..682a7d8 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -340,11 +340,24 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, richacl_for_each_entry(ace, *acl) { READ_BUF(16); len += 16; - ace->e_type = be32_to_cpup(p++); - ace->e_flags = be32_to_cpup(p++); - ace->e_mask = be32_to_cpup(p++); - if (ace->e_flags & RICHACE_SPECIAL_WHO) + + dummy32 = be32_to_cpup(p++); + if (dummy32 > RICHACE_ACCESS_DENIED_ACE_TYPE) + return nfserr_inval; + ace->e_type = dummy32; + + dummy32 = be32_to_cpup(p++); + if (dummy32 & (~RICHACE_VALID_FLAGS | + RICHACE_INHERITED_ACE | + RICHACE_SPECIAL_WHO)) return nfserr_inval; + ace->e_flags = dummy32; + + dummy32 = be32_to_cpup(p++); + if (dummy32 & ~NFS4_ACE_MASK_ALL) + return nfserr_inval; + ace->e_mask = dummy32; + dummy32 = be32_to_cpup(p++); READ_BUF(dummy32); len += XDR_QUADLEN(dummy32) << 2; @@ -2330,7 +2343,11 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, fhp = tempfh; } if (bmval0 & FATTR4_WORD0_ACL) { - err = nfsd4_get_acl(rqstp, dentry, &acl); + acl = nfsd4_get_acl(rqstp, dentry); + if (IS_ERR(acl)) { + err = PTR_ERR(acl); + acl = NULL; + } if (err == -EOPNOTSUPP) bmval0 &= ~FATTR4_WORD0_ACL; else if (err == -EINVAL) { @@ -2370,7 +2387,7 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, u32 word1 = nfsd_suppattrs1(minorversion); u32 word2 = nfsd_suppattrs2(minorversion); - if (!IS_POSIXACL(dentry->d_inode)) + if (!IS_ACL(d_inode(dentry))) word0 &= ~FATTR4_WORD0_ACL; if (!contextsupport) word2 &= ~FATTR4_WORD2_SECURITY_LABEL; @@ -2505,7 +2522,8 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, if (!p) goto out_resource; *p++ = cpu_to_be32(ace->e_type); - *p++ = cpu_to_be32(ace->e_flags & ~RICHACE_SPECIAL_WHO); + *p++ = cpu_to_be32(ace->e_flags & + ~(RICHACE_SPECIAL_WHO | RICHACE_INHERITED_ACE)); *p++ = cpu_to_be32(ace->e_mask & NFS4_ACE_MASK_ALL); status = nfsd4_encode_ace_who(xdr, rqstp, ace); if (status) @@ -2517,7 +2535,7 @@ out_acl: p = xdr_reserve_space(xdr, 4); if (!p) goto out_resource; - *p++ = cpu_to_be32(IS_POSIXACL(dentry->d_inode) ? + *p++ = cpu_to_be32(IS_ACL(d_inode(dentry)) ? ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL : 0); } if (bmval0 & FATTR4_WORD0_CANSETTIME) { -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:22:11 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6B6FD29E66 for ; Tue, 3 Nov 2015 09:22:11 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id D310BAC001 for ; Tue, 3 Nov 2015 07:22:10 -0800 (PST) X-ASG-Debug-ID: 1446564128-04cb6c7b861ddcf0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id QplrGERyiFKMcQ8M (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:22:09 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 5AC0AC10046C; Tue, 3 Nov 2015 15:22:08 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRa5029477; Tue, 3 Nov 2015 10:22:01 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 39/51] nfsd: Add support for the v4.1 dacl attribute Date: Tue, 3 Nov 2015 16:17:15 +0100 X-ASG-Orig-Subj: [PATCH v13 39/51] nfsd: Add support for the v4.1 dacl attribute Message-Id: <1446563847-14005-40-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564128 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Richacls support the Automatic Inheritance permission propagation mechanism as specified in NFSv4.1. Over NFS, this requires support for the dacl attribute: compared to the acl attribute, the dacl attribute has an additional flags field which indicates when Automatic Inheritance is in use. The server will only indicate dacl attribute support in protocol version 4.1 and later, on file systems with richacl support. This commit also adds support for the NFSv4.1 NFS4_ACE_WRITE_RETENTION and NFS4_ACE_WRITE_RETENTION_HOLD ACL permissions. Signed-off-by: Andreas Gruenbacher Acked-by: J. Bruce Fields --- fs/nfsd/nfs4proc.c | 3 +- fs/nfsd/nfs4xdr.c | 219 ++++++++++++++++++++++++++++++---------------- fs/nfsd/nfsd.h | 6 +- include/linux/nfs4.h | 1 + include/uapi/linux/nfs4.h | 3 +- 5 files changed, 155 insertions(+), 77 deletions(-) diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 1bcfda2..a053e78 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1781,7 +1781,8 @@ static inline u32 nfsd4_getattr_rsize(struct svc_rqst *rqstp, u32 bmap0 = bmap[0], bmap1 = bmap[1], bmap2 = bmap[2]; u32 ret = 0; - if (bmap0 & FATTR4_WORD0_ACL) + if (bmap0 & FATTR4_WORD0_ACL || + bmap1 & FATTR4_WORD1_DACL) return svc_max_payload(rqstp); if (bmap0 & FATTR4_WORD0_FS_LOCATIONS) return svc_max_payload(rqstp); diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 682a7d8..33d028c 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -301,6 +301,68 @@ nfsd4_decode_bitmap(struct nfsd4_compoundargs *argp, u32 *bmval) DECODE_TAIL; } +static unsigned int +nfsd4_ace_mask(int minorversion) +{ + return minorversion == 0 ? NFS40_ACE_MASK_ALL : NFS4_ACE_MASK_ALL; +} + +static __be32 +nfsd4_decode_acl_entries(struct nfsd4_compoundargs *argp, struct richacl **acl, + unsigned short flags_mask, unsigned int ace_mask, + int *plen) +{ + struct richace *ace; + u32 dummy32; + char *buf; + int len = 0; + + DECODE_HEAD; + + flags_mask &= RICHACE_VALID_FLAGS & ~RICHACE_SPECIAL_WHO; + + READ_BUF(4); len += 4; + dummy32 = be32_to_cpup(p++); + + if (dummy32 > NFSD4_ACL_MAX) + return nfserr_fbig; + + *acl = svcxdr_alloc_richacl(argp, dummy32); + if (*acl == NULL) + return nfserr_jukebox; + + richacl_for_each_entry(ace, *acl) { + READ_BUF(16); len += 16; + + dummy32 = be32_to_cpup(p++); + if (dummy32 > RICHACE_ACCESS_DENIED_ACE_TYPE) + return nfserr_inval; + ace->e_type = dummy32; + + dummy32 = be32_to_cpup(p++); + if (dummy32 & ~flags_mask) + return nfserr_inval; + ace->e_flags = dummy32; + + dummy32 = be32_to_cpup(p++); + if (dummy32 & ~ace_mask) + return nfserr_inval; + ace->e_mask = dummy32; + + dummy32 = be32_to_cpup(p++); + READ_BUF(dummy32); + len += XDR_QUADLEN(dummy32) << 2; + READMEM(buf, dummy32); + status = nfsd4_decode_ace_who(ace, argp->rqstp, + buf, dummy32); + if (status) + return status; + } + *plen += len; + + DECODE_TAIL; +} + static __be32 nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, struct iattr *iattr, struct richacl **acl, @@ -312,6 +374,7 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, DECODE_HEAD; iattr->ia_valid = 0; + *acl = NULL; if ((status = nfsd4_decode_bitmap(argp, bmval))) return status; @@ -325,50 +388,18 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, iattr->ia_valid |= ATTR_SIZE; } if (bmval[0] & FATTR4_WORD0_ACL) { - u32 nace; - struct richace *ace; - - READ_BUF(4); len += 4; - nace = be32_to_cpup(p++); - - if (nace > NFSD4_ACL_MAX) - return nfserr_fbig; + if (bmval[1] & FATTR4_WORD1_DACL) + return nfserr_inval; - *acl = svcxdr_alloc_richacl(argp, nace); - if (*acl == NULL) + status = nfsd4_decode_acl_entries(argp, acl, + ~NFS4_ACE_INHERITED_ACE, + nfsd4_ace_mask(argp->minorversion), + &len); + if (status) + return status; + else if (*acl == NULL) return nfserr_jukebox; - - richacl_for_each_entry(ace, *acl) { - READ_BUF(16); len += 16; - - dummy32 = be32_to_cpup(p++); - if (dummy32 > RICHACE_ACCESS_DENIED_ACE_TYPE) - return nfserr_inval; - ace->e_type = dummy32; - - dummy32 = be32_to_cpup(p++); - if (dummy32 & (~RICHACE_VALID_FLAGS | - RICHACE_INHERITED_ACE | - RICHACE_SPECIAL_WHO)) - return nfserr_inval; - ace->e_flags = dummy32; - - dummy32 = be32_to_cpup(p++); - if (dummy32 & ~NFS4_ACE_MASK_ALL) - return nfserr_inval; - ace->e_mask = dummy32; - - dummy32 = be32_to_cpup(p++); - READ_BUF(dummy32); - len += XDR_QUADLEN(dummy32) << 2; - READMEM(buf, dummy32); - status = nfsd4_decode_ace_who(ace, argp->rqstp, - buf, dummy32); - if (status) - return status; - } - } else - *acl = NULL; + } if (bmval[1] & FATTR4_WORD1_MODE) { READ_BUF(4); len += 4; @@ -436,6 +467,22 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, goto xdr_error; } } + if (bmval[1] & FATTR4_WORD1_DACL) { + READ_BUF(4); + len += 4; + dummy32 = be32_to_cpup(p++); + if (dummy32 & (~RICHACL_VALID_FLAGS | RICHACL_MASKED)) + return nfserr_inval; + status = nfsd4_decode_acl_entries(argp, acl, + ~0, + nfsd4_ace_mask(argp->minorversion), + &len); + if (status) + return status; + else if (*acl == NULL) + return nfserr_jukebox; + (*acl)->a_flags = dummy32; + } label->len = 0; #ifdef CONFIG_NFSD_V4_SECURITY_LABEL @@ -2272,6 +2319,42 @@ out_resource: return nfserr_resource; } +static __be32 nfsd4_encode_acl_entries(struct xdr_stream *xdr, + struct richacl *acl, struct svc_rqst *rqstp, + unsigned short flags_mask, unsigned int ace_mask) +{ + __be32 *p; + + flags_mask &= ~RICHACE_SPECIAL_WHO; + + p = xdr_reserve_space(xdr, 4); + if (!p) + return nfserr_resource; + + if (acl == NULL) { + *p++ = cpu_to_be32(0); + } else { + struct richace *ace; + + *p++ = cpu_to_be32(acl->a_count); + + richacl_for_each_entry(ace, acl) { + __be32 status; + + p = xdr_reserve_space(xdr, 4*3); + if (!p) + return nfserr_resource; + *p++ = cpu_to_be32(ace->e_type); + *p++ = cpu_to_be32(ace->e_flags & flags_mask); + *p++ = cpu_to_be32(ace->e_mask & ace_mask); + status = nfsd4_encode_ace_who(xdr, rqstp, ace); + if (status) + return status; + } + } + return 0; +} + /* * Note: @fhp can be NULL; in this case, we might have to compose the filehandle * ourselves. @@ -2342,15 +2425,16 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, goto out; fhp = tempfh; } - if (bmval0 & FATTR4_WORD0_ACL) { + if ((bmval0 & FATTR4_WORD0_ACL) || (bmval1 & FATTR4_WORD1_DACL)) { acl = nfsd4_get_acl(rqstp, dentry); if (IS_ERR(acl)) { err = PTR_ERR(acl); acl = NULL; } - if (err == -EOPNOTSUPP) + if (err == -EOPNOTSUPP) { bmval0 &= ~FATTR4_WORD0_ACL; - else if (err == -EINVAL) { + bmval1 &= ~FATTR4_WORD1_DACL; + } else if (err == -EINVAL) { status = nfserr_attrnotsupp; goto out; } else if (err != 0) @@ -2389,6 +2473,8 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, if (!IS_ACL(d_inode(dentry))) word0 &= ~FATTR4_WORD0_ACL; + if (!IS_RICHACL(d_inode(dentry))) + word1 &= ~FATTR4_WORD1_DACL; if (!contextsupport) word2 &= ~FATTR4_WORD2_SECURITY_LABEL; if (!word2) { @@ -2502,35 +2588,12 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, *p++ = cpu_to_be32(rdattr_err); } if (bmval0 & FATTR4_WORD0_ACL) { - struct richace *ace; - - if (acl == NULL) { - p = xdr_reserve_space(xdr, 4); - if (!p) - goto out_resource; - - *p++ = cpu_to_be32(0); - goto out_acl; - } - p = xdr_reserve_space(xdr, 4); - if (!p) - goto out_resource; - *p++ = cpu_to_be32(acl->a_count); - - richacl_for_each_entry(ace, acl) { - p = xdr_reserve_space(xdr, 4*3); - if (!p) - goto out_resource; - *p++ = cpu_to_be32(ace->e_type); - *p++ = cpu_to_be32(ace->e_flags & - ~(RICHACE_SPECIAL_WHO | RICHACE_INHERITED_ACE)); - *p++ = cpu_to_be32(ace->e_mask & NFS4_ACE_MASK_ALL); - status = nfsd4_encode_ace_who(xdr, rqstp, ace); - if (status) - goto out; - } + status = nfsd4_encode_acl_entries(xdr, acl, rqstp, + ~NFS4_ACE_INHERITED_ACE, + nfsd4_ace_mask(minorversion)); + if (status) + goto out; } -out_acl: if (bmval0 & FATTR4_WORD0_ACLSUPPORT) { p = xdr_reserve_space(xdr, 4); if (!p) @@ -2746,6 +2809,16 @@ out_acl: } p = xdr_encode_hyper(p, ino); } + if (bmval1 & FATTR4_WORD1_DACL) { + p = xdr_reserve_space(xdr, 4); + if (!p) + goto out_resource; + *p++ = cpu_to_be32(acl->a_flags); + status = nfsd4_encode_acl_entries(xdr, acl, rqstp, + ~0, nfsd4_ace_mask(minorversion)); + if (status) + goto out; + } #ifdef CONFIG_NFSD_PNFS if (bmval1 & FATTR4_WORD1_FS_LAYOUT_TYPES) { status = nfsd4_encode_layout_type(xdr, exp->ex_layout_type); diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h index cf98052..cb5c3ed 100644 --- a/fs/nfsd/nfsd.h +++ b/fs/nfsd/nfsd.h @@ -339,7 +339,8 @@ void nfsd_lockd_shutdown(void); NFSD4_SUPPORTED_ATTRS_WORD0 #define NFSD4_1_SUPPORTED_ATTRS_WORD1 \ - (NFSD4_SUPPORTED_ATTRS_WORD1 | PNFSD_SUPPORTED_ATTRS_WORD1) + (NFSD4_SUPPORTED_ATTRS_WORD1 | PNFSD_SUPPORTED_ATTRS_WORD1 | \ + FATTR4_WORD1_DACL) #define NFSD4_1_SUPPORTED_ATTRS_WORD2 \ (NFSD4_SUPPORTED_ATTRS_WORD2 | PNFSD_SUPPORTED_ATTRS_WORD2 | \ @@ -386,7 +387,8 @@ static inline u32 nfsd_suppattrs2(u32 minorversion) (FATTR4_WORD0_SIZE | FATTR4_WORD0_ACL) #define NFSD_WRITEABLE_ATTRS_WORD1 \ (FATTR4_WORD1_MODE | FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP \ - | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET) + | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET \ + | FATTR4_WORD1_DACL) #ifdef CONFIG_NFSD_V4_SECURITY_LABEL #define NFSD_WRITEABLE_ATTRS_WORD2 FATTR4_WORD2_SECURITY_LABEL #else diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index 1422fc6..682ced3 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -394,6 +394,7 @@ enum lock_type4 { #define FATTR4_WORD1_TIME_MODIFY (1UL << 21) #define FATTR4_WORD1_TIME_MODIFY_SET (1UL << 22) #define FATTR4_WORD1_MOUNTED_ON_FILEID (1UL << 23) +#define FATTR4_WORD1_DACL (1UL << 26) #define FATTR4_WORD1_FS_LAYOUT_TYPES (1UL << 30) #define FATTR4_WORD2_LAYOUT_TYPES (1UL << 0) #define FATTR4_WORD2_LAYOUT_BLKSIZE (1UL << 1) diff --git a/include/uapi/linux/nfs4.h b/include/uapi/linux/nfs4.h index 2b871e0..b850ffd 100644 --- a/include/uapi/linux/nfs4.h +++ b/include/uapi/linux/nfs4.h @@ -121,7 +121,8 @@ #define NFS4_ACE_GENERIC_READ 0x00120081 #define NFS4_ACE_GENERIC_WRITE 0x00160106 #define NFS4_ACE_GENERIC_EXECUTE 0x001200A0 -#define NFS4_ACE_MASK_ALL 0x001F01FF +#define NFS40_ACE_MASK_ALL 0x001F01FF +#define NFS4_ACE_MASK_ALL 0x001F07FF #define EXCHGID4_FLAG_SUPP_MOVED_REFER 0x00000001 #define EXCHGID4_FLAG_SUPP_MOVED_MIGR 0x00000002 -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:22:17 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5E69429E72 for ; Tue, 3 Nov 2015 09:22:17 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1E4148F8035 for ; Tue, 3 Nov 2015 07:22:17 -0800 (PST) X-ASG-Debug-ID: 1446564135-04bdf0330c1fcbc0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id CI1Ca0XphDdVhRZo (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:22:15 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 6851F8535A; Tue, 3 Nov 2015 15:22:15 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRa6029477; Tue, 3 Nov 2015 10:22:09 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 40/51] nfsd: Add support for the MAY_CREATE_{FILE,DIR} permissions Date: Tue, 3 Nov 2015 16:17:16 +0100 X-ASG-Orig-Subj: [PATCH v13 40/51] nfsd: Add support for the MAY_CREATE_{FILE,DIR} permissions Message-Id: <1446563847-14005-41-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564135 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 For local file systems, the vfs performs the necessary permission checks for operations like creating files and directories. NFSd duplicates several of those checks. The vfs checks have been extended to check for additional permissions like MAY_CREATE_FILE and MY_CREATE_DIR; the nfsd checks currently lack those extensions. Ideally, all duplicate checks should be removed; for now, just fix the duplicate checks instead though. Signed-off-by: Andreas Gruenbacher Acked-by: J. Bruce Fields --- fs/nfsd/nfs4proc.c | 5 +++-- fs/nfsd/nfsfh.c | 8 ++++---- fs/nfsd/vfs.c | 28 ++++++++++++++++++++-------- fs/nfsd/vfs.h | 17 +++++++++-------- 4 files changed, 36 insertions(+), 22 deletions(-) diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index a053e78..8d476ff 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -599,14 +599,15 @@ static __be32 nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_create *create) { + int access = create->cr_type == NF4DIR ? + NFSD_MAY_CREATE_DIR : NFSD_MAY_CREATE_FILE; struct svc_fh resfh; __be32 status; dev_t rdev; fh_init(&resfh, NFS4_FHSIZE); - status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, - NFSD_MAY_CREATE); + status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, access); if (status) return status; diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c index 350041a..7159316 100644 --- a/fs/nfsd/nfsfh.c +++ b/fs/nfsd/nfsfh.c @@ -319,10 +319,10 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, int access) /* * We still have to do all these permission checks, even when * fh_dentry is already set: - * - fh_verify may be called multiple times with different - * "access" arguments (e.g. nfsd_proc_create calls - * fh_verify(...,NFSD_MAY_EXEC) first, then later (in - * nfsd_create) calls fh_verify(...,NFSD_MAY_CREATE). + * - fh_verify may be called multiple times with different + * "access" arguments (e.g. nfsd_proc_create calls + * fh_verify(...,NFSD_MAY_EXEC) first, then later (in + * nfsd_create) calls fh_verify(...,NFSD_MAY_CREATE_FILE). * - in the NFSv4 case, the filehandle may have been filled * in by fh_compose, and given a dentry, but further * compound operations performed with that filehandle diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 45c0497..fb35775 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1128,6 +1128,8 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, __be32 err; __be32 err2; int host_err; + int access = (type == S_IFDIR) ? + NFSD_MAY_CREATE_DIR : NFSD_MAY_CREATE_FILE; err = nfserr_perm; if (!flen) @@ -1136,7 +1138,7 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, if (isdotent(fname, flen)) goto out; - err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE); + err = fh_verify(rqstp, fhp, S_IFDIR, access); if (err) goto out; @@ -1301,7 +1303,7 @@ do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, /* If file doesn't exist, check for permissions to create one */ if (d_really_is_negative(dchild)) { - err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE); + err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE_FILE); if (err) goto out; } @@ -1485,7 +1487,7 @@ nfsd_symlink(struct svc_rqst *rqstp, struct svc_fh *fhp, if (isdotent(fname, flen)) goto out; - err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE); + err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE_FILE); if (err) goto out; @@ -1532,7 +1534,7 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp, __be32 err; int host_err; - err = fh_verify(rqstp, ffhp, S_IFDIR, NFSD_MAY_CREATE); + err = fh_verify(rqstp, ffhp, S_IFDIR, NFSD_MAY_CREATE_FILE); if (err) goto out; err = fh_verify(rqstp, tfhp, 0, NFSD_MAY_NOP); @@ -1604,11 +1606,12 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen, struct inode *fdir, *tdir; __be32 err; int host_err; + int access; err = fh_verify(rqstp, ffhp, S_IFDIR, NFSD_MAY_REMOVE); if (err) goto out; - err = fh_verify(rqstp, tfhp, S_IFDIR, NFSD_MAY_CREATE); + err = fh_verify(rqstp, tfhp, S_IFDIR, NFSD_MAY_NOP); if (err) goto out; @@ -1647,6 +1650,13 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen, if (odentry == trap) goto out_dput_old; + host_err = 0; + access = S_ISDIR(d_inode(odentry)->i_mode) ? + NFSD_MAY_CREATE_DIR : NFSD_MAY_CREATE_FILE; + err = fh_verify(rqstp, tfhp, S_IFDIR, access); + if (err) + goto out_dput_old; + ndentry = lookup_one_len(tname, tdentry, tlen); host_err = PTR_ERR(ndentry); if (IS_ERR(ndentry)) @@ -1672,7 +1682,8 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen, out_dput_old: dput(odentry); out_nfserr: - err = nfserrno(host_err); + if (host_err) + err = nfserrno(host_err); /* * We cannot rely on fh_unlock on the two filehandles, * as that would do the wrong thing if the two directories @@ -2005,8 +2016,9 @@ nfsd_permission(struct svc_rqst *rqstp, struct svc_export *exp, uid_eq(inode->i_uid, current_fsuid())) return 0; - /* This assumes NFSD_MAY_{READ,WRITE,EXEC} == MAY_{READ,WRITE,EXEC} */ - err = inode_permission(inode, acc & (MAY_READ|MAY_WRITE|MAY_EXEC)); + /* This assumes NFSD_MAY_{READ,WRITE,EXEC} == MAY_{READ,WRITE,EXEC}. */ + err = inode_permission(inode, acc & (MAY_READ|MAY_WRITE|MAY_EXEC| + MAY_CREATE_DIR|MAY_CREATE_FILE)); /* Allow read access to binaries even when mode 111 */ if (err == -EACCES && S_ISREG(inode->i_mode) && diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h index fee2451..c849ef2 100644 --- a/fs/nfsd/vfs.h +++ b/fs/nfsd/vfs.h @@ -19,18 +19,19 @@ #define NFSD_MAY_TRUNC 0x010 #define NFSD_MAY_LOCK 0x020 #define NFSD_MAY_MASK 0x03f +#define NFSD_MAY_CREATE_FILE 0x103 /* == MAY_{EXEC|WRITE|CREATE_FILE} */ +#define NFSD_MAY_CREATE_DIR 0x203 /* == MAY_{EXEC|WRITE|CREATE_DIR} */ /* extra hints to permission and open routines: */ -#define NFSD_MAY_OWNER_OVERRIDE 0x040 -#define NFSD_MAY_LOCAL_ACCESS 0x080 /* for device special files */ -#define NFSD_MAY_BYPASS_GSS_ON_ROOT 0x100 -#define NFSD_MAY_NOT_BREAK_LEASE 0x200 -#define NFSD_MAY_BYPASS_GSS 0x400 -#define NFSD_MAY_READ_IF_EXEC 0x800 +#define NFSD_MAY_OWNER_OVERRIDE 0x04000 +#define NFSD_MAY_LOCAL_ACCESS 0x08000 /* for device special files */ +#define NFSD_MAY_BYPASS_GSS_ON_ROOT 0x10000 +#define NFSD_MAY_NOT_BREAK_LEASE 0x20000 +#define NFSD_MAY_BYPASS_GSS 0x40000 +#define NFSD_MAY_READ_IF_EXEC 0x80000 -#define NFSD_MAY_64BIT_COOKIE 0x1000 /* 64 bit readdir cookies for >= NFSv3 */ +#define NFSD_MAY_64BIT_COOKIE 0x100000 /* 64 bit readdir cookies for >= NFSv3 */ -#define NFSD_MAY_CREATE (NFSD_MAY_EXEC|NFSD_MAY_WRITE) #define NFSD_MAY_REMOVE (NFSD_MAY_EXEC|NFSD_MAY_WRITE|NFSD_MAY_TRUNC) /* -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:22:25 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3418529E77 for ; Tue, 3 Nov 2015 09:22:25 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id E720E304051 for ; Tue, 3 Nov 2015 07:22:24 -0800 (PST) X-ASG-Debug-ID: 1446564142-04bdf0330c1fcbe0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id RwKEkome4Vt7MF2n (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:22:22 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 4C40C8FAA4; Tue, 3 Nov 2015 15:22:22 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRa7029477; Tue, 3 Nov 2015 10:22:16 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 41/51] richacl: Add support for unmapped identifiers Date: Tue, 3 Nov 2015 16:17:17 +0100 X-ASG-Orig-Subj: [PATCH v13 41/51] richacl: Add support for unmapped identifiers Message-Id: <1446563847-14005-42-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564142 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Some remote file systems like nfs may return user or group identifiers that cannot be mapped to local uids / gids. Allow to represent such unmapped identifiers in richacls. (We still cannot represent unmapped owners and owning groups, however.) In the in-memory representation, the richacl is followed by a list of NUL-terminated strings, with no padding. Entries with an unmapped identifier have the RICHACE_UNMAPPED_WHO flag set, and ace->e_id.offs specifies the offset into this list. Multiple entries can refer to the same offset. The xattr representation is similar, but ace->e_id is ignored, and the list of unmapped identifier strings contains a string for each acl entry whose RICHACE_UNMAPPED_WHO flag is set. Signed-off-by: Andreas Gruenbacher --- fs/richacl_base.c | 139 ++++++++++++++++++++++++++++++++++++++++--- fs/richacl_compat.c | 18 +++--- fs/richacl_inode.c | 4 +- fs/richacl_xattr.c | 69 +++++++++++++++++---- include/linux/richacl.h | 31 ++++++++-- include/uapi/linux/richacl.h | 2 + 6 files changed, 227 insertions(+), 36 deletions(-) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 2a9c448..641b1bb 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -23,22 +23,25 @@ MODULE_LICENSE("GPL"); /** - * richacl_alloc - allocate a richacl + * __richacl_alloc - allocate a richacl * @count: number of entries + * @unmapped_size: size to reserve for unmapped identifiers */ struct richacl * -richacl_alloc(int count, gfp_t gfp) +__richacl_alloc(unsigned int count, size_t unmapped_size, gfp_t gfp) { - size_t size = sizeof(struct richacl) + count * sizeof(struct richace); + size_t size = sizeof(struct richacl) + count * sizeof(struct richace) + + unmapped_size; struct richacl *acl = kzalloc(size, gfp); if (acl) { atomic_set(&acl->a_base.ba_refcount, 1); acl->a_count = count; + acl->a_unmapped_size = unmapped_size; } return acl; } -EXPORT_SYMBOL_GPL(richacl_alloc); +EXPORT_SYMBOL_GPL(__richacl_alloc); /** * richacl_clone - create a copy of a richacl @@ -47,7 +50,8 @@ struct richacl * richacl_clone(const struct richacl *acl, gfp_t gfp) { int count = acl->a_count; - size_t size = sizeof(struct richacl) + count * sizeof(struct richace); + size_t size = sizeof(struct richacl) + count * sizeof(struct richace) + + acl->a_unmapped_size; struct richacl *dup = kmalloc(size, gfp); if (dup) { @@ -59,6 +63,9 @@ richacl_clone(const struct richacl *acl, gfp_t gfp) /** * richace_copy - copy an acl entry + * + * If @from has an unmapped who value (from->e_flags & RICHACE_UNMAPPED_WHO), + * it can only be copied within the same acl! */ void richace_copy(struct richace *to, const struct richace *from) @@ -66,6 +73,82 @@ richace_copy(struct richace *to, const struct richace *from) memcpy(to, from, sizeof(struct richace)); } +/** + * richacl_add_unmapped_identifier + * @pacl: Pointer to an acl + * @pace: acl entry within @acl + * @who: unmapped identifier + * @len: length of @who + * @gfp: memory allocation flags + * + * Add an unmapped identifier to an acl, possibly reallocating the acl. + */ +int richacl_add_unmapped_identifier(struct richacl **pacl, + struct richace **pace, + const char *who, + unsigned int len, gfp_t gfp) +{ + struct richacl *acl = *pacl; + size_t size = sizeof(struct richacl) + + acl->a_count * sizeof(struct richace) + + acl->a_unmapped_size + len + 1; + unsigned int index = *pace - acl->a_entries; + + acl = krealloc(*pacl, size, gfp); + if (acl) { + char *unmapped = (char *)(acl->a_entries + acl->a_count); + struct richace *ace = acl->a_entries + index; + + ace->e_flags |= RICHACE_UNMAPPED_WHO; + ace->e_flags &= ~RICHACE_SPECIAL_WHO; + ace->e_id.offs = acl->a_unmapped_size; + memcpy(unmapped + ace->e_id.offs, who, len); + unmapped[ace->e_id.offs + len] = 0; + acl->a_unmapped_size += len + 1; + *pace = ace; + *pacl = acl; + return 0; + } + return -1; +} +EXPORT_SYMBOL_GPL(richacl_add_unmapped_identifier); + +/** + * richace_unmapped_identifier - get unmapped identifier + * @acl: acl containing @ace + * @ace: acl entry + * + * Get the unmapped identifier of @ace as a NUL-terminated string, or NULL if + * @ace doesn't have an unmapped identifier. + */ +const char *richace_unmapped_identifier(const struct richace *ace, + const struct richacl *acl) +{ + const char *unmapped = (char *)(acl->a_entries + acl->a_count); + + if (!(ace->e_flags & RICHACE_UNMAPPED_WHO)) + return NULL; + return unmapped + ace->e_id.offs; +} +EXPORT_SYMBOL(richace_unmapped_identifier); + +/** + * richacl_has_unmapped_identifiers + * + * Check if an acl has unmapped identifiers. + */ +bool richacl_has_unmapped_identifiers(struct richacl *acl) +{ + struct richace *ace; + + richacl_for_each_entry(ace, acl) { + if (ace->e_flags & RICHACE_UNMAPPED_WHO) + return true; + } + return false; +} +EXPORT_SYMBOL_GPL(richacl_has_unmapped_identifiers); + /* * richacl_mask_to_mode - compute the file permission bits from mask * @mask: %RICHACE_* permission mask @@ -214,7 +297,7 @@ static unsigned int richacl_allowed_to_who(struct richacl *acl, richacl_for_each_entry_reverse(ace, acl) { if (richace_is_inherit_only(ace)) continue; - if (richace_is_same_identifier(ace, who) || + if (richace_is_same_identifier(acl, ace, who) || richace_is_everyone(ace)) { if (richace_is_allow(ace)) allowed |= ace->e_mask; @@ -505,45 +588,72 @@ richacl_inherit(const struct richacl *dir_acl, int isdir) const struct richace *dir_ace; struct richacl *acl = NULL; struct richace *ace; - int count = 0; + unsigned int count = 0, unmapped_size = 0, offset = 0; + const char *dir_unmapped; + char *unmapped; if (isdir) { richacl_for_each_entry(dir_ace, dir_acl) { if (!richace_is_inheritable(dir_ace)) continue; + count++; + dir_unmapped = + richace_unmapped_identifier(dir_ace, dir_acl); + if (dir_unmapped) + unmapped_size += strlen(dir_unmapped) + 1; } if (!count) return NULL; - acl = richacl_alloc(count, GFP_KERNEL); + acl = __richacl_alloc(count, unmapped_size, GFP_KERNEL); if (!acl) return ERR_PTR(-ENOMEM); ace = acl->a_entries; + unmapped = (char *)(acl->a_entries + acl->a_count); richacl_for_each_entry(dir_ace, dir_acl) { if (!richace_is_inheritable(dir_ace)) continue; + richace_copy(ace, dir_ace); if (dir_ace->e_flags & RICHACE_NO_PROPAGATE_INHERIT_ACE) ace->e_flags &= ~RICHACE_INHERITANCE_FLAGS; else if (!(dir_ace->e_flags & RICHACE_DIRECTORY_INHERIT_ACE)) ace->e_flags |= RICHACE_INHERIT_ONLY_ACE; + + dir_unmapped = + richace_unmapped_identifier(dir_ace, dir_acl); + if (dir_unmapped) { + size_t sz = strlen(dir_unmapped) + 1; + + ace->e_id.offs = offset; + memcpy(unmapped, dir_unmapped, sz); + unmapped += sz; + offset += sz; + } ace++; } } else { richacl_for_each_entry(dir_ace, dir_acl) { if (!(dir_ace->e_flags & RICHACE_FILE_INHERIT_ACE)) continue; + count++; + dir_unmapped = + richace_unmapped_identifier(dir_ace, dir_acl); + if (dir_unmapped) + unmapped_size += strlen(dir_unmapped) + 1; } if (!count) return NULL; - acl = richacl_alloc(count, GFP_KERNEL); + acl = __richacl_alloc(count, unmapped_size, GFP_KERNEL); if (!acl) return ERR_PTR(-ENOMEM); ace = acl->a_entries; + unmapped = (char *)(acl->a_entries + acl->a_count); richacl_for_each_entry(dir_ace, dir_acl) { if (!(dir_ace->e_flags & RICHACE_FILE_INHERIT_ACE)) continue; + richace_copy(ace, dir_ace); ace->e_flags &= ~RICHACE_INHERITANCE_FLAGS; /* @@ -551,6 +661,17 @@ richacl_inherit(const struct richacl *dir_acl, int isdir) * non-directories, so clear it. */ ace->e_mask &= ~RICHACE_DELETE_CHILD; + + dir_unmapped = + richace_unmapped_identifier(dir_ace, dir_acl); + if (dir_unmapped) { + size_t sz = strlen(dir_unmapped) + 1; + + ace->e_id.offs = offset; + memcpy(unmapped, dir_unmapped, sz); + unmapped += sz; + offset += sz; + } ace++; } } diff --git a/fs/richacl_compat.c b/fs/richacl_compat.c index 3a11773..24b5397 100644 --- a/fs/richacl_compat.c +++ b/fs/richacl_compat.c @@ -71,11 +71,13 @@ richacl_insert_entry(struct richacl_alloc *alloc, struct richace **ace) { struct richacl *acl = alloc->acl; unsigned int index = *ace - acl->a_entries; - size_t tail_size = (acl->a_count - index) * sizeof(struct richace); + size_t tail_size = (acl->a_count - index) * sizeof(struct richace) + + acl->a_unmapped_size; if (alloc->count == acl->a_count) { size_t new_size = sizeof(struct richacl) + - (acl->a_count + 1) * sizeof(struct richace); + (acl->a_count + 1) * sizeof(struct richace) + + acl->a_unmapped_size; acl = krealloc(acl, new_size, GFP_KERNEL); if (!acl) @@ -103,10 +105,6 @@ struct richace *richacl_append_entry(struct richacl_alloc *alloc) struct richacl *acl = alloc->acl; struct richace *ace = acl->a_entries + acl->a_count; - if (alloc->count > alloc->acl->a_count) { - acl->a_count++; - return ace; - } return richacl_insert_entry(alloc, &ace) ? NULL : ace; } EXPORT_SYMBOL_GPL(richacl_append_entry); @@ -261,12 +259,12 @@ __richacl_propagate_everyone(struct richacl_alloc *alloc, struct richace *who, if (richace_is_inherit_only(ace)) continue; if (richace_is_allow(ace)) { - if (richace_is_same_identifier(ace, who)) { + if (richace_is_same_identifier(acl, ace, who)) { allow &= ~ace->e_mask; allow_last = ace; } } else if (richace_is_deny(ace)) { - if (richace_is_same_identifier(ace, who)) + if (richace_is_same_identifier(acl, ace, who)) allow &= ~ace->e_mask; else if (allow & ace->e_mask) allow_last = NULL; @@ -613,7 +611,7 @@ __richacl_isolate_who(struct richacl_alloc *alloc, struct richace *who, richacl_for_each_entry(ace, acl) { if (richace_is_inherit_only(ace)) continue; - if (richace_is_same_identifier(ace, who)) + if (richace_is_same_identifier(acl, ace, who)) deny &= ~ace->e_mask; } if (!deny) @@ -629,7 +627,7 @@ __richacl_isolate_who(struct richacl_alloc *alloc, struct richace *who, if (richace_is_inherit_only(ace)) continue; if (richace_is_deny(ace)) { - if (richace_is_same_identifier(ace, who)) + if (richace_is_same_identifier(acl, ace, who)) return richace_change_mask(alloc, &ace, ace->e_mask | deny); } else if (richace_is_allow(ace) && diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index 24276da..026abae 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -161,8 +161,10 @@ richacl_permission(struct inode *inode, const struct richacl *acl, } else if (richace_is_unix_group(ace)) { if (!in_group_p(ace->e_id.gid)) continue; - } else + } else if (richace_is_everyone(ace)) goto entry_matches_everyone; + else + continue; /* * Apply the group file mask to entries other than owner@ and diff --git a/fs/richacl_xattr.c b/fs/richacl_xattr.c index 767c1f7..09b1012 100644 --- a/fs/richacl_xattr.c +++ b/fs/richacl_xattr.c @@ -35,7 +35,8 @@ richacl_from_xattr(struct user_namespace *user_ns, const struct richace_xattr *xattr_ace = (void *)(xattr_acl + 1); struct richacl *acl; struct richace *ace; - int count; + unsigned int count, offset; + char *unmapped; if (size < sizeof(*xattr_acl) || xattr_acl->a_version != RICHACL_XATTR_VERSION || @@ -45,10 +46,11 @@ richacl_from_xattr(struct user_namespace *user_ns, count = le16_to_cpu(xattr_acl->a_count); if (count > RICHACL_XATTR_MAX_COUNT) return ERR_PTR(-EINVAL); - if (size != count * sizeof(*xattr_ace)) + if (size < count * sizeof(*xattr_ace)) return ERR_PTR(-EINVAL); + size -= count * sizeof(*xattr_ace); - acl = richacl_alloc(count, GFP_NOFS); + acl = __richacl_alloc(count, size, GFP_NOFS); if (!acl) return ERR_PTR(-ENOMEM); @@ -63,6 +65,16 @@ richacl_from_xattr(struct user_namespace *user_ns, if (acl->a_other_mask & ~RICHACE_VALID_MASK) goto fail_einval; + unmapped = (char *)(acl->a_entries + count); + if (size) { + char *xattr_unmapped = (char *)(xattr_ace + count); + + if (xattr_unmapped[size - 1] != 0) + goto fail_einval; + memcpy(unmapped, xattr_unmapped, size); + } + offset = 0; + richacl_for_each_entry(ace, acl) { ace->e_type = le16_to_cpu(xattr_ace->e_type); ace->e_flags = le16_to_cpu(xattr_ace->e_flags); @@ -74,6 +86,15 @@ richacl_from_xattr(struct user_namespace *user_ns, ace->e_id.special = le32_to_cpu(xattr_ace->e_id); if (ace->e_id.special > RICHACE_EVERYONE_SPECIAL_ID) goto fail_einval; + } else if (ace->e_flags & RICHACE_UNMAPPED_WHO) { + size_t sz; + + if (offset == size) + goto fail_einval; + ace->e_id.offs = offset; + sz = strlen(unmapped) + 1; + unmapped += sz; + offset += sz; } else if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) { u32 id = le32_to_cpu(xattr_ace->e_id); @@ -90,10 +111,12 @@ richacl_from_xattr(struct user_namespace *user_ns, if (ace->e_type > RICHACE_ACCESS_DENIED_ACE_TYPE || (ace->e_mask & ~RICHACE_VALID_MASK)) goto fail_einval; - xattr_ace++; } + if (offset != size) + goto fail_einval; + return acl; fail_einval: @@ -109,8 +132,15 @@ size_t richacl_xattr_size(const struct richacl *acl) { size_t size = sizeof(struct richacl_xattr); + const struct richace *ace; size += sizeof(struct richace_xattr) * acl->a_count; + richacl_for_each_entry(ace, acl) { + const char *unmapped = richace_unmapped_identifier(ace, acl); + + if (unmapped) + size += strlen(unmapped) + 1; + } return size; } EXPORT_SYMBOL_GPL(richacl_xattr_size); @@ -129,6 +159,7 @@ richacl_to_xattr(struct user_namespace *user_ns, struct richace_xattr *xattr_ace; const struct richace *ace; size_t real_size; + char *xattr_unmapped; real_size = richacl_xattr_size(acl); if (!buffer) @@ -145,18 +176,33 @@ richacl_to_xattr(struct user_namespace *user_ns, xattr_acl->a_other_mask = cpu_to_le32(acl->a_other_mask); xattr_ace = (void *)(xattr_acl + 1); + xattr_unmapped = (char *)(xattr_ace + acl->a_count); richacl_for_each_entry(ace, acl) { + const char *who; + xattr_ace->e_type = cpu_to_le16(ace->e_type); xattr_ace->e_flags = cpu_to_le16(ace->e_flags); xattr_ace->e_mask = cpu_to_le32(ace->e_mask); if (ace->e_flags & RICHACE_SPECIAL_WHO) xattr_ace->e_id = cpu_to_le32(ace->e_id.special); - else if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) - xattr_ace->e_id = - cpu_to_le32(from_kgid(user_ns, ace->e_id.gid)); - else - xattr_ace->e_id = - cpu_to_le32(from_kuid(user_ns, ace->e_id.uid)); + else { + who = richace_unmapped_identifier(ace, acl); + if (who) { + size_t sz = strlen(who) + 1; + + xattr_ace->e_id = 0; + memcpy(xattr_unmapped, who, sz); + xattr_unmapped += sz; + } else if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) { + u32 id = from_kgid(user_ns, ace->e_id.gid); + + xattr_ace->e_id = cpu_to_le32(id); + } else { + u32 id = from_kuid(user_ns, ace->e_id.uid); + + xattr_ace->e_id = cpu_to_le32(id); + } + } xattr_ace++; } return real_size; @@ -262,7 +308,8 @@ static void richacl_fix_xattr_userns( return; count = size / sizeof(*xattr_ace); for (; count; count--, xattr_ace++) { - if (xattr_ace->e_flags & cpu_to_le16(RICHACE_SPECIAL_WHO)) + if (xattr_ace->e_flags & cpu_to_le16(RICHACE_SPECIAL_WHO | + RICHACE_UNMAPPED_WHO)) continue; if (xattr_ace->e_flags & cpu_to_le16(RICHACE_IDENTIFIER_GROUP)) { diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 10bfd0f..52e5c3d 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -27,6 +27,7 @@ struct richace { kuid_t uid; kgid_t gid; unsigned int special; + unsigned short offs; /* unmapped offset */ } e_id; }; @@ -37,6 +38,7 @@ struct richacl { unsigned int a_other_mask; unsigned short a_count; unsigned short a_flags; + unsigned short a_unmapped_size; struct richace a_entries[0]; }; @@ -182,14 +184,28 @@ richace_is_deny(const struct richace *ace) * richace_is_same_identifier - are both identifiers the same? */ static inline bool -richace_is_same_identifier(const struct richace *a, const struct richace *b) +richace_is_same_identifier(const struct richacl *acl, + const struct richace *ace1, + const struct richace *ace2) { - return !((a->e_flags ^ b->e_flags) & - (RICHACE_SPECIAL_WHO | RICHACE_IDENTIFIER_GROUP)) && - !memcmp(&a->e_id, &b->e_id, sizeof(a->e_id)); + const char *unmapped = (char *)(acl->a_entries + acl->a_count); + + return !((ace1->e_flags ^ ace2->e_flags) & + (RICHACE_SPECIAL_WHO | + RICHACE_IDENTIFIER_GROUP | + RICHACE_UNMAPPED_WHO)) && + ((ace1->e_flags & RICHACE_UNMAPPED_WHO) ? + !strcmp(unmapped + ace1->e_id.offs, + unmapped + ace2->e_id.offs) : + !memcmp(&ace1->e_id, &ace2->e_id, sizeof(ace1->e_id))); +} + +extern struct richacl *__richacl_alloc(unsigned int, size_t, gfp_t); +static inline struct richacl *richacl_alloc(unsigned int count, gfp_t gfp) +{ + return __richacl_alloc(count, 0, gfp); } -extern struct richacl *richacl_alloc(int, gfp_t); extern struct richacl *richacl_clone(const struct richacl *, gfp_t); extern void richace_copy(struct richace *, const struct richace *); extern int richacl_masks_to_mode(const struct richacl *); @@ -199,6 +215,11 @@ extern void richacl_compute_max_masks(struct richacl *); extern struct richacl *__richacl_chmod(struct richacl *, umode_t); extern int richacl_equiv_mode(const struct richacl *, umode_t *); extern struct richacl *richacl_inherit(const struct richacl *, int); +extern int richacl_add_unmapped_identifier(struct richacl **, struct richace **, + const char *, unsigned int, gfp_t); +extern const char *richace_unmapped_identifier(const struct richace *, + const struct richacl *); +extern bool richacl_has_unmapped_identifiers(struct richacl *); /* richacl_inode.c */ extern int richacl_permission(struct inode *, const struct richacl *, int); diff --git a/include/uapi/linux/richacl.h b/include/uapi/linux/richacl.h index 8849a53..132fee1 100644 --- a/include/uapi/linux/richacl.h +++ b/include/uapi/linux/richacl.h @@ -35,6 +35,7 @@ #define RICHACE_INHERIT_ONLY_ACE 0x0008 #define RICHACE_IDENTIFIER_GROUP 0x0040 #define RICHACE_INHERITED_ACE 0x0080 +#define RICHACE_UNMAPPED_WHO 0x2000 #define RICHACE_SPECIAL_WHO 0x4000 /* e_mask bitflags */ @@ -77,6 +78,7 @@ RICHACE_INHERIT_ONLY_ACE | \ RICHACE_IDENTIFIER_GROUP | \ RICHACE_INHERITED_ACE | \ + RICHACE_UNMAPPED_WHO | \ RICHACE_SPECIAL_WHO ) #define RICHACE_INHERITANCE_FLAGS ( \ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:22:31 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8ECB929E66 for ; Tue, 3 Nov 2015 09:22:31 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 029CAAC001 for ; Tue, 3 Nov 2015 07:22:30 -0800 (PST) X-ASG-Debug-ID: 1446564149-04cb6c7b841ddd10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id q2nZ65i6F3d7WJ95 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:22:29 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 3D1EDA37F8; Tue, 3 Nov 2015 15:22:29 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRa8029477; Tue, 3 Nov 2015 10:22:22 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 42/51] nfsd: Add support for unmapped richace identifiers Date: Tue, 3 Nov 2015 16:17:18 +0100 X-ASG-Orig-Subj: [PATCH v13 42/51] nfsd: Add support for unmapped richace identifiers Message-Id: <1446563847-14005-43-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564149 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Add support for encoding unmapped identifiers in richacl entries: local filesystems are not usually supposed to store unmapped identifiers, but allowing that for debugging purposes can be useful; for that, nfsd must also be able to encode them. Signed-off-by: Andreas Gruenbacher --- fs/nfsd/acl.h | 2 +- fs/nfsd/nfs4acl.c | 17 +++++++++++------ fs/nfsd/nfs4xdr.c | 4 ++-- 3 files changed, 14 insertions(+), 9 deletions(-) diff --git a/fs/nfsd/acl.h b/fs/nfsd/acl.h index d73c664..4935144 100644 --- a/fs/nfsd/acl.h +++ b/fs/nfsd/acl.h @@ -51,7 +51,7 @@ struct svc_rqst; __be32 nfsd4_decode_ace_who(struct richace *ace, struct svc_rqst *rqstp, char *who, u32 len); __be32 nfsd4_encode_ace_who(struct xdr_stream *xdr, struct svc_rqst *rqstp, - struct richace *ace); + struct richace *ace, struct richacl *acl); struct richacl *nfsd4_get_acl(struct svc_rqst *rqstp, struct dentry *dentry); __be32 nfsd4_set_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c index f017a76..3cc83fd 100644 --- a/fs/nfsd/nfs4acl.c +++ b/fs/nfsd/nfs4acl.c @@ -885,17 +885,22 @@ __be32 nfsd4_decode_ace_who(struct richace *ace, struct svc_rqst *rqstp, } __be32 nfsd4_encode_ace_who(struct xdr_stream *xdr, struct svc_rqst *rqstp, - struct richace *ace) + struct richace *ace, struct richacl *acl) { - if (ace->e_flags & RICHACE_SPECIAL_WHO) { - unsigned int special_id = ace->e_id.special; + if (ace->e_flags & (RICHACE_SPECIAL_WHO | RICHACE_UNMAPPED_WHO)) { const char *who; unsigned int len; __be32 *p; - if (!nfs4acl_special_id_to_who(special_id, &who, &len)) { - WARN_ON_ONCE(1); - return nfserr_serverfault; + if (ace->e_flags & RICHACE_SPECIAL_WHO) { + if (!nfs4acl_special_id_to_who(ace->e_id.special, + &who, &len)) { + WARN_ON_ONCE(1); + return nfserr_serverfault; + } + } else { + who = richace_unmapped_identifier(ace, acl); + len = strlen(who); } p = xdr_reserve_space(xdr, len + 4); if (!p) diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 33d028c..8728d0e 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -2325,7 +2325,7 @@ static __be32 nfsd4_encode_acl_entries(struct xdr_stream *xdr, { __be32 *p; - flags_mask &= ~RICHACE_SPECIAL_WHO; + flags_mask &= ~(RICHACE_SPECIAL_WHO | RICHACE_UNMAPPED_WHO); p = xdr_reserve_space(xdr, 4); if (!p) @@ -2347,7 +2347,7 @@ static __be32 nfsd4_encode_acl_entries(struct xdr_stream *xdr, *p++ = cpu_to_be32(ace->e_type); *p++ = cpu_to_be32(ace->e_flags & flags_mask); *p++ = cpu_to_be32(ace->e_mask & ace_mask); - status = nfsd4_encode_ace_who(xdr, rqstp, ace); + status = nfsd4_encode_ace_who(xdr, rqstp, ace, acl); if (status) return status; } -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:22:38 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 41F6629E66 for ; Tue, 3 Nov 2015 09:22:38 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1FBBC304043 for ; Tue, 3 Nov 2015 07:22:38 -0800 (PST) X-ASG-Debug-ID: 1446564156-04cb6c7b861ddd60001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id GnvTO4YchoDLLSvs (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:22:37 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 92BB8227; Tue, 3 Nov 2015 15:22:36 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRa9029477; Tue, 3 Nov 2015 10:22:29 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 43/51] ext4: Don't allow unmapped identifiers in richacls Date: Tue, 3 Nov 2015 16:17:19 +0100 X-ASG-Orig-Subj: [PATCH v13 43/51] ext4: Don't allow unmapped identifiers in richacls Message-Id: <1446563847-14005-44-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564157 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Don't allow acls which contain unmapped identifiers: they are meaningful for remote file systems only. Signed-off-by: Andreas Gruenbacher --- fs/ext4/richacl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/ext4/richacl.c b/fs/ext4/richacl.c index 906d048..2115385 100644 --- a/fs/ext4/richacl.c +++ b/fs/ext4/richacl.c @@ -74,6 +74,10 @@ __ext4_set_richacl(handle_t *handle, struct inode *inode, struct richacl *acl) int retval, size; void *value; + /* Don't allow acls with unmapped identifiers. */ + if (richacl_has_unmapped_identifiers(acl)) + return -EINVAL; + if (richacl_equiv_mode(acl, &mode) == 0) { inode->i_ctime = ext4_current_time(inode); inode->i_mode = mode; -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:22:45 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0407729E66 for ; Tue, 3 Nov 2015 09:22:45 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id C99138F8033 for ; Tue, 3 Nov 2015 07:22:44 -0800 (PST) X-ASG-Debug-ID: 1446564163-04bdf0330a1fcc10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id h5dUI3IrUguVx19H (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:22:43 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 8363242E5A7; Tue, 3 Nov 2015 15:22:43 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRaA029477; Tue, 3 Nov 2015 10:22:37 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 44/51] xfs: Don't allow unmapped identifiers in richacls Date: Tue, 3 Nov 2015 16:17:20 +0100 X-ASG-Orig-Subj: [PATCH v13 44/51] xfs: Don't allow unmapped identifiers in richacls Message-Id: <1446563847-14005-45-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564163 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Don't allow acls which contain unmapped identifiers: they are meaningful for remote file systems only. Signed-off-by: Andreas Gruenbacher --- fs/xfs/xfs_richacl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/xfs/xfs_richacl.c b/fs/xfs/xfs_richacl.c index f8f5a62..4a2e21a 100644 --- a/fs/xfs/xfs_richacl.c +++ b/fs/xfs/xfs_richacl.c @@ -78,6 +78,10 @@ __xfs_set_richacl(struct inode *inode, struct richacl *acl, int xflags) if (!acl) return xfs_remove_richacl(inode); + /* Don't allow acls with unmapped identifiers. */ + if (richacl_has_unmapped_identifiers(acl)) + return -EINVAL; + if (richacl_equiv_mode(acl, &mode) == 0) { xfs_set_mode(inode, mode); return xfs_remove_richacl(inode); -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:22:52 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DD9B829E66 for ; Tue, 3 Nov 2015 09:22:52 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6CDDAAC002 for ; Tue, 3 Nov 2015 07:22:52 -0800 (PST) X-ASG-Debug-ID: 1446564170-04cb6c7b861dddc0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id WoJbxjPVRO6LGb1i (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:22:51 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id B21538E3E3; Tue, 3 Nov 2015 15:22:50 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRaB029477; Tue, 3 Nov 2015 10:22:44 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 45/51] sunrpc: Allow to demand-allocate pages to encode into Date: Tue, 3 Nov 2015 16:17:21 +0100 X-ASG-Orig-Subj: [PATCH v13 45/51] sunrpc: Allow to demand-allocate pages to encode into Message-Id: <1446563847-14005-46-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564171 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 When encoding large, variable-length objects such as acls into xdr_bufs, it is easier to allocate buffer pages on demand rather than precomputing the required buffer size. Signed-off-by: Andreas Gruenbacher --- net/sunrpc/xdr.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 4439ac4..63c1c36 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -537,6 +537,15 @@ static __be32 *xdr_get_next_encode_buffer(struct xdr_stream *xdr, */ xdr->scratch.iov_base = xdr->p; xdr->scratch.iov_len = frag1bytes; + + if (!*xdr->page_ptr) { + struct page *page = alloc_page(GFP_NOFS); + + if (!page) + return NULL; + *xdr->page_ptr = page; + } + p = page_address(*xdr->page_ptr); /* * Note this is where the next encode will start after we've -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:22:59 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2905229E66 for ; Tue, 3 Nov 2015 09:22:59 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 068B78F8033 for ; Tue, 3 Nov 2015 07:22:58 -0800 (PST) X-ASG-Debug-ID: 1446564177-04cbb0660c1f7e20001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 8AjAz9Owx2VZ7Lxi (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:22:58 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 5369E8FAA0; Tue, 3 Nov 2015 15:22:57 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRaC029477; Tue, 3 Nov 2015 10:22:51 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 46/51] sunrpc: Add xdr_init_encode_pages Date: Tue, 3 Nov 2015 16:17:22 +0100 X-ASG-Orig-Subj: [PATCH v13 46/51] sunrpc: Add xdr_init_encode_pages Message-Id: <1446563847-14005-47-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564177 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Initialize xdr_stream and xdr_buf from a pages array, for encoding into the pages. Signed-off-by: Andreas Gruenbacher --- include/linux/sunrpc/xdr.h | 2 ++ net/sunrpc/xdr.c | 25 +++++++++++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h index 70c6b92..2c99cff 100644 --- a/include/linux/sunrpc/xdr.h +++ b/include/linux/sunrpc/xdr.h @@ -214,6 +214,8 @@ typedef void (*kxdreproc_t)(void *rqstp, struct xdr_stream *xdr, void *obj); typedef int (*kxdrdproc_t)(void *rqstp, struct xdr_stream *xdr, void *obj); extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p); +extern void xdr_init_encode_pages(struct xdr_stream *xdr, struct xdr_buf *buf, + struct page **pages, unsigned int len); extern __be32 *xdr_reserve_space(struct xdr_stream *xdr, size_t nbytes); extern void xdr_commit_encode(struct xdr_stream *xdr); extern void xdr_truncate_encode(struct xdr_stream *xdr, size_t len); diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 63c1c36..f97b96b 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -483,6 +483,31 @@ void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p) EXPORT_SYMBOL_GPL(xdr_init_encode); /** + * xdr_init_encode_pages - Initialize struct xdr_stream for encoding into pages + * @xdr: pointer to xdr_stream struct + * @buf: pointer to XDR buffer in which to encode data + * @pages: pages array in which to encode + * @len: maximum length of @buf + * + * Initialize @xdr and @buf for encoding into the @pages array. If a + * page in @pages is NULL, it will be allocated on demand. + */ +void xdr_init_encode_pages(struct xdr_stream *xdr, struct xdr_buf *buf, + struct page **pages, unsigned int len) +{ + memset(buf, 0, sizeof(*buf)); + buf->pages = pages; + buf->page_len = len; + buf->buflen = len; + + memset(xdr, 0, sizeof(*xdr)); + xdr->buf = buf; + xdr->iov = buf->head; + xdr->page_ptr = pages - 1; +} +EXPORT_SYMBOL_GPL(xdr_init_encode_pages); + +/** * xdr_commit_encode - Ensure all data is written to buffer * @xdr: pointer to xdr_stream * -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:23:06 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D633229E66 for ; Tue, 3 Nov 2015 09:23:05 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6DADCAC001 for ; Tue, 3 Nov 2015 07:23:05 -0800 (PST) X-ASG-Debug-ID: 1446564184-04bdf033091fcc40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id U8xsRZXVrccK4nsR (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:23:04 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 3DCD2C0D61B8; Tue, 3 Nov 2015 15:23:04 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRaD029477; Tue, 3 Nov 2015 10:22:57 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 47/51] nfs: Fix GETATTR bitmap verification Date: Tue, 3 Nov 2015 16:17:23 +0100 X-ASG-Orig-Subj: [PATCH v13 47/51] nfs: Fix GETATTR bitmap verification Message-Id: <1446563847-14005-48-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564184 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 When decoding GETATTR replies, the client checks the attribute bitmap for which attributes the server has sent. It misses bits at the word boundaries, though; fix that. Signed-off-by: Andreas Gruenbacher --- fs/nfs/nfs4xdr.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 788adf3..6f6d921 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -4375,6 +4375,11 @@ static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) goto xdr_error; if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) goto xdr_error; + + status = -EIO; + if (unlikely(bitmap[0])) + goto xdr_error; + if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) goto xdr_error; if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) @@ -4574,6 +4579,10 @@ static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, goto xdr_error; fattr->valid |= status; + status = -EIO; + if (unlikely(bitmap[0])) + goto xdr_error; + status = decode_attr_mode(xdr, bitmap, &fmode); if (status < 0) goto xdr_error; @@ -4627,6 +4636,10 @@ static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, goto xdr_error; fattr->valid |= status; + status = -EIO; + if (unlikely(bitmap[1])) + goto xdr_error; + status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); if (status < 0) goto xdr_error; @@ -4789,12 +4802,22 @@ static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) goto xdr_error; fsinfo->wtpref = fsinfo->wtmax; + + status = -EIO; + if (unlikely(bitmap[0])) + goto xdr_error; + status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); if (status != 0) goto xdr_error; status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); if (status != 0) goto xdr_error; + + status = -EIO; + if (unlikely(bitmap[1])) + goto xdr_error; + status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); if (status) goto xdr_error; -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:23:12 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id AEE8B29E66 for ; Tue, 3 Nov 2015 09:23:12 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 749B830404E for ; Tue, 3 Nov 2015 07:23:12 -0800 (PST) X-ASG-Debug-ID: 1446564191-04bdf0330b1fcc60001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Y8s91nOa7lgZ8b4c (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:23:11 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 30341C0D61B5; Tue, 3 Nov 2015 15:23:11 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRaE029477; Tue, 3 Nov 2015 10:23:04 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 48/51] nfs: Remove unused xdr page offsets in getacl/setacl arguments Date: Tue, 3 Nov 2015 16:17:24 +0100 X-ASG-Orig-Subj: [PATCH v13 48/51] nfs: Remove unused xdr page offsets in getacl/setacl arguments Message-Id: <1446563847-14005-49-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564191 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The arguments passed around for getacl and setacl xdr encoding, struct nfs_setaclargs and struct nfs_getaclargs, both contain an array of pages, an offset into the first page, and the length of the page data. The offset is unused as it is always zero; remove it. Signed-off-by: Andreas Gruenbacher --- fs/nfs/nfs4proc.c | 5 ++--- fs/nfs/nfs4xdr.c | 4 ++-- include/linux/nfs_xdr.h | 2 -- 3 files changed, 4 insertions(+), 7 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 5133bb1..eec5c4c 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4530,7 +4530,7 @@ static inline int nfs4_server_supports_acls(struct nfs_server *server) #define NFS4ACL_MAXPAGES DIV_ROUND_UP(XATTR_SIZE_MAX, PAGE_SIZE) static int buf_to_pages_noslab(const void *buf, size_t buflen, - struct page **pages, unsigned int *pgbase) + struct page **pages) { struct page *newpage, **spages; int rc = 0; @@ -4674,7 +4674,6 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu goto out_free; args.acl_len = npages * PAGE_SIZE; - args.acl_pgbase = 0; dprintk("%s buf %p buflen %zu npages %d args.acl_len %zu\n", __func__, buf, buflen, npages, args.acl_len); @@ -4766,7 +4765,7 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl return -EOPNOTSUPP; if (npages > ARRAY_SIZE(pages)) return -ERANGE; - i = buf_to_pages_noslab(buf, buflen, arg.acl_pages, &arg.acl_pgbase); + i = buf_to_pages_noslab(buf, buflen, arg.acl_pages); if (i < 0) return i; nfs4_inode_return_delegation(inode); diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 6f6d921..eefed15 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -1659,7 +1659,7 @@ encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compoun *p = cpu_to_be32(FATTR4_WORD0_ACL); p = reserve_space(xdr, 4); *p = cpu_to_be32(arg->acl_len); - xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); + xdr_write_pages(xdr, arg->acl_pages, 0, arg->acl_len); } static void @@ -2491,7 +2491,7 @@ static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); xdr_inline_pages(&req->rq_rcv_buf, replen << 2, - args->acl_pages, args->acl_pgbase, args->acl_len); + args->acl_pages, 0, args->acl_len); encode_nops(&hdr); } diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 52faf7e..090ade4 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -685,7 +685,6 @@ struct nfs_setaclargs { struct nfs4_sequence_args seq_args; struct nfs_fh * fh; size_t acl_len; - unsigned int acl_pgbase; struct page ** acl_pages; }; @@ -697,7 +696,6 @@ struct nfs_getaclargs { struct nfs4_sequence_args seq_args; struct nfs_fh * fh; size_t acl_len; - unsigned int acl_pgbase; struct page ** acl_pages; }; -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:23:19 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F238929E97 for ; Tue, 3 Nov 2015 09:23:19 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id DDD338F8040 for ; Tue, 3 Nov 2015 07:23:19 -0800 (PST) X-ASG-Debug-ID: 1446564198-04cbb0660d1f7e50001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id uYu5mlIoRTGLCS64 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:23:18 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 10489C100446; Tue, 3 Nov 2015 15:23:18 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRaF029477; Tue, 3 Nov 2015 10:23:11 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 49/51] nfs: Distinguish missing users and groups from nobody Date: Tue, 3 Nov 2015 16:17:25 +0100 X-ASG-Orig-Subj: [PATCH v13 49/51] nfs: Distinguish missing users and groups from nobody Message-Id: <1446563847-14005-50-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564198 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 User and group names are mapped to IDs using the kernel keyring infrastructure. When a name does not exist, it is mapped to the nobody user or group; there is no way to tell the difference from the mapping result. In ACLs, we need to make that distinction. For that, use the new "xuid" and "xgid" maps: they behave like the old "uid" and "gid" maps except that the IDs of existing users and groups are prefixed by a "+" sign. When the "xuid" or "xgid" maps are not supported, nfs falls back to the "uid" and "gid" maps. Signed-off-by: Andreas Gruenbacher --- fs/nfs/nfs4idmap.c | 57 ++++++++++++++++++++++++++++++++++++++--------- fs/nfs/nfs4xdr.c | 6 +++-- include/linux/nfs_fs_sb.h | 1 + 3 files changed, 52 insertions(+), 12 deletions(-) diff --git a/fs/nfs/nfs4idmap.c b/fs/nfs/nfs4idmap.c index 2e49022..34dd404 100644 --- a/fs/nfs/nfs4idmap.c +++ b/fs/nfs/nfs4idmap.c @@ -100,10 +100,12 @@ static bool nfs_fattr_map_owner_name(struct nfs_server *server, struct nfs_fattr { struct nfs4_string *owner = fattr->owner_name; kuid_t uid; + int ret; if (!(fattr->valid & NFS_ATTR_FATTR_OWNER_NAME)) return false; - if (nfs_map_name_to_uid(server, owner->data, owner->len, &uid) == 0) { + ret = nfs_map_name_to_uid(server, owner->data, owner->len, &uid); + if (ret == 0 || ret == -ENOENT) { fattr->uid = uid; fattr->valid |= NFS_ATTR_FATTR_OWNER; } @@ -114,10 +116,12 @@ static bool nfs_fattr_map_group_name(struct nfs_server *server, struct nfs_fattr { struct nfs4_string *group = fattr->group_name; kgid_t gid; + int ret; if (!(fattr->valid & NFS_ATTR_FATTR_GROUP_NAME)) return false; - if (nfs_map_group_to_gid(server, group->data, group->len, &gid) == 0) { + ret = nfs_map_group_to_gid(server, group->data, group->len, &gid); + if (ret == 0 || ret == -ENOENT) { fattr->gid = gid; fattr->valid |= NFS_ATTR_FATTR_GROUP; } @@ -351,20 +355,23 @@ static ssize_t nfs_idmap_lookup_name(__u32 id, const char *type, char *buf, } /* Name -> ID */ +/* Returns -ENOENT for unknown names (with @id set to the nobody id). */ static int nfs_idmap_lookup_id(const char *name, size_t namelen, const char *type, __u32 *id, struct idmap *idmap) { - char id_str[NFS_UINT_MAXLEN]; + char id_str[NFS_UINT_MAXLEN + 1]; long id_long; ssize_t data_size; int ret = 0; - data_size = nfs_idmap_get_key(name, namelen, type, id_str, NFS_UINT_MAXLEN, idmap); + data_size = nfs_idmap_get_key(name, namelen, type, id_str, sizeof(id_str), idmap); if (data_size <= 0) { ret = -EINVAL; } else { ret = kstrtol(id_str, 10, &id_long); *id = (__u32)id_long; + if (!ret && *id_str != '+') + ret = -ENOENT; } return ret; } @@ -719,9 +726,24 @@ int nfs_map_name_to_uid(const struct nfs_server *server, const char *name, size_ __u32 id = -1; int ret = 0; - if (!nfs_map_string_to_numeric(name, namelen, &id)) - ret = nfs_idmap_lookup_id(name, namelen, "uid", &id, idmap); - if (ret == 0) { + if (!nfs_map_string_to_numeric(name, namelen, &id)) { + struct nfs_client *client = server->nfs_client; + const char *type; + + for(;;) { + type = "xuid"; + if (test_bit(NFS_CS_NOXUID, &client->cl_flags)) + type = "uid"; + + ret = nfs_idmap_lookup_id(name, namelen, type, &id, idmap); + if (ret != -EINVAL || test_bit(NFS_CS_NOXUID, &client->cl_flags)) + break; + printk(KERN_NOTICE "NFS: Falling back from nfsidmap " + "xuid/xgid to uid/gid\n"); + set_bit(NFS_CS_NOXUID, &client->cl_flags); + } + } + if (ret == 0 || ret == -ENOENT) { *uid = make_kuid(&init_user_ns, id); if (!uid_valid(*uid)) ret = -ERANGE; @@ -736,9 +758,24 @@ int nfs_map_group_to_gid(const struct nfs_server *server, const char *name, size __u32 id = -1; int ret = 0; - if (!nfs_map_string_to_numeric(name, namelen, &id)) - ret = nfs_idmap_lookup_id(name, namelen, "gid", &id, idmap); - if (ret == 0) { + if (!nfs_map_string_to_numeric(name, namelen, &id)) { + struct nfs_client *client = server->nfs_client; + const char *type; + + for(;;) { + type = "xgid"; + if (test_bit(NFS_CS_NOXUID, &client->cl_flags)) + type = "gid"; + + ret = nfs_idmap_lookup_id(name, namelen, type, &id, idmap); + if (ret != -EINVAL || test_bit(NFS_CS_NOXUID, &client->cl_flags)) + break; + printk(KERN_NOTICE "NFS: Falling back from nfsidmap " + "xuid/xgid to uid/gid\n"); + set_bit(NFS_CS_NOXUID, &client->cl_flags); + } + } + if (ret == 0 || ret == -ENOENT) { *gid = make_kgid(&init_user_ns, id); if (!gid_valid(*gid)) ret = -ERANGE; diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index eefed15..adeb894 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -3875,7 +3875,8 @@ static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, ret = NFS_ATTR_FATTR_OWNER_NAME; } } else if (len < XDR_MAX_NETOBJ) { - if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) + ret = nfs_map_name_to_uid(server, (char *)p, len, uid); + if (ret == 0 || ret == -ENOENT) ret = NFS_ATTR_FATTR_OWNER; else dprintk("%s: nfs_map_name_to_uid failed!\n", @@ -3918,7 +3919,8 @@ static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, ret = NFS_ATTR_FATTR_GROUP_NAME; } } else if (len < XDR_MAX_NETOBJ) { - if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) + ret = nfs_map_group_to_gid(server, (char *)p, len, gid); + if (ret == 0 || ret == -ENOENT) ret = NFS_ATTR_FATTR_GROUP; else dprintk("%s: nfs_map_group_to_gid failed!\n", diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index 570a7df..c7d42b7 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -36,6 +36,7 @@ struct nfs_client { #define NFS_CS_RENEWD 3 /* - renewd started */ #define NFS_CS_STOP_RENEW 4 /* no more state to renew */ #define NFS_CS_CHECK_LEASE_TIME 5 /* need to check lease time */ +#define NFS_CS_NOXUID 6 /* don't use idmap xuid / xgid */ unsigned long cl_flags; /* behavior switches */ #define NFS_CS_NORESVPORT 0 /* - use ephemeral src port */ #define NFS_CS_DISCRTRY 1 /* - disconnect on RPC retry */ -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:23:29 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9820129E66 for ; Tue, 3 Nov 2015 09:23:29 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 44C818F8037 for ; Tue, 3 Nov 2015 07:23:29 -0800 (PST) X-ASG-Debug-ID: 1446564205-04bdf0330b1fcc70001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id qb9PgNFh8gBKT88O (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:23:25 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 012598FAA2; Tue, 3 Nov 2015 15:23:24 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRaG029477; Tue, 3 Nov 2015 10:23:18 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 50/51] nfs: Add richacl support Date: Tue, 3 Nov 2015 16:17:26 +0100 X-ASG-Orig-Subj: [PATCH v13 50/51] nfs: Add richacl support Message-Id: <1446563847-14005-51-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564205 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Add support for the "system.richacl" xattr in nfs. The existing "system.nfs4_acl" xattr on nfs doesn't map user and group names to uids and gids; the "system.richacl" xattr does, and only keeps the on-the-wire names when there is no mapping. This allows to copy permissions across different file systems. Signed-off-by: Andreas Gruenbacher --- fs/nfs/inode.c | 3 - fs/nfs/nfs4proc.c | 731 ++++++++++++++++++++++++++++++++++------------ fs/nfs/nfs4xdr.c | 178 +++++++++-- fs/nfs/super.c | 4 +- include/linux/nfs_fs.h | 1 - include/linux/nfs_fs_sb.h | 2 + include/linux/nfs_xdr.h | 9 +- 7 files changed, 701 insertions(+), 227 deletions(-) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 326d9e1..843d15d 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -1852,9 +1852,6 @@ struct inode *nfs_alloc_inode(struct super_block *sb) return NULL; nfsi->flags = 0UL; nfsi->cache_validity = 0UL; -#if IS_ENABLED(CONFIG_NFS_V4) - nfsi->nfs4_acl = NULL; -#endif /* CONFIG_NFS_V4 */ return &nfsi->vfs_inode; } EXPORT_SYMBOL_GPL(nfs_alloc_inode); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index eec5c4c..7bb2dea 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -55,6 +55,9 @@ #include #include #include +#include +#include +#include #include "nfs4_fs.h" #include "delegation.h" @@ -2982,15 +2985,18 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f res.attr_bitmask[2] &= FATTR4_WORD2_NFS42_MASK; } memcpy(server->attr_bitmask, res.attr_bitmask, sizeof(server->attr_bitmask)); - server->caps &= ~(NFS_CAP_ACLS|NFS_CAP_HARDLINKS| - NFS_CAP_SYMLINKS|NFS_CAP_FILEID| + server->caps &= ~(NFS_CAP_ALLOW_ACLS|NFS_CAP_DENY_ACLS| + NFS_CAP_HARDLINKS|NFS_CAP_SYMLINKS|NFS_CAP_FILEID| NFS_CAP_MODE|NFS_CAP_NLINK|NFS_CAP_OWNER| NFS_CAP_OWNER_GROUP|NFS_CAP_ATIME| NFS_CAP_CTIME|NFS_CAP_MTIME| NFS_CAP_SECURITY_LABEL); - if (res.attr_bitmask[0] & FATTR4_WORD0_ACL && - res.acl_bitmask & ACL4_SUPPORT_ALLOW_ACL) - server->caps |= NFS_CAP_ACLS; + if (res.attr_bitmask[0] & FATTR4_WORD0_ACL) { + if (res.acl_bitmask & ACL4_SUPPORT_ALLOW_ACL) + server->caps |= NFS_CAP_ALLOW_ACLS; + if (res.acl_bitmask & ACL4_SUPPORT_DENY_ACL) + server->caps |= NFS_CAP_DENY_ACLS; + } if (res.has_links != 0) server->caps |= NFS_CAP_HARDLINKS; if (res.has_symlinks != 0) @@ -4518,45 +4524,11 @@ static int nfs4_proc_renew(struct nfs_client *clp, struct rpc_cred *cred) return 0; } -static inline int nfs4_server_supports_acls(struct nfs_server *server) -{ - return server->caps & NFS_CAP_ACLS; -} - -/* Assuming that XATTR_SIZE_MAX is a multiple of PAGE_SIZE, and that - * it's OK to put sizeof(void) * (XATTR_SIZE_MAX/PAGE_SIZE) bytes on - * the stack. +/* A arbitrary limit; we allocate at most DIV_ROUND_UP(NFS4ACL_SIZE_MAX, + * PAGE_SIZE) pages and put an array of DIV_ROUND_UP(NFS4ACL_SIZE_MAX, + * PAGE_SIZE) pages on the stack when encoding or decoding acls. */ -#define NFS4ACL_MAXPAGES DIV_ROUND_UP(XATTR_SIZE_MAX, PAGE_SIZE) - -static int buf_to_pages_noslab(const void *buf, size_t buflen, - struct page **pages) -{ - struct page *newpage, **spages; - int rc = 0; - size_t len; - spages = pages; - - do { - len = min_t(size_t, PAGE_SIZE, buflen); - newpage = alloc_page(GFP_KERNEL); - - if (newpage == NULL) - goto unwind; - memcpy(page_address(newpage), buf, len); - buf += len; - buflen -= len; - *pages++ = newpage; - rc++; - } while (buflen != 0); - - return rc; - -unwind: - for(; rc > 0; rc--) - __free_page(spages[rc-1]); - return -ENOMEM; -} +#define NFS4ACL_SIZE_MAX 65536 struct nfs4_cached_acl { int cached; @@ -4564,66 +4536,9 @@ struct nfs4_cached_acl { char data[0]; }; -static void nfs4_set_cached_acl(struct inode *inode, struct nfs4_cached_acl *acl) -{ - struct nfs_inode *nfsi = NFS_I(inode); - - spin_lock(&inode->i_lock); - kfree(nfsi->nfs4_acl); - nfsi->nfs4_acl = acl; - spin_unlock(&inode->i_lock); -} - static void nfs4_zap_acl_attr(struct inode *inode) { - nfs4_set_cached_acl(inode, NULL); -} - -static inline ssize_t nfs4_read_cached_acl(struct inode *inode, char *buf, size_t buflen) -{ - struct nfs_inode *nfsi = NFS_I(inode); - struct nfs4_cached_acl *acl; - int ret = -ENOENT; - - spin_lock(&inode->i_lock); - acl = nfsi->nfs4_acl; - if (acl == NULL) - goto out; - if (buf == NULL) /* user is just asking for length */ - goto out_len; - if (acl->cached == 0) - goto out; - ret = -ERANGE; /* see getxattr(2) man page */ - if (acl->len > buflen) - goto out; - memcpy(buf, acl->data, acl->len); -out_len: - ret = acl->len; -out: - spin_unlock(&inode->i_lock); - return ret; -} - -static void nfs4_write_cached_acl(struct inode *inode, struct page **pages, size_t pgbase, size_t acl_len) -{ - struct nfs4_cached_acl *acl; - size_t buflen = sizeof(*acl) + acl_len; - - if (buflen <= PAGE_SIZE) { - acl = kmalloc(buflen, GFP_KERNEL); - if (acl == NULL) - goto out; - acl->cached = 1; - _copy_from_pages(acl->data, pages, pgbase, acl_len); - } else { - acl = kmalloc(sizeof(*acl), GFP_KERNEL); - if (acl == NULL) - goto out; - acl->cached = 0; - } - acl->len = acl_len; -out: - nfs4_set_cached_acl(inode, acl); + forget_cached_richacl(inode); } /* @@ -4636,121 +4551,269 @@ out: * length. The next getxattr call will then produce another round trip to * the server, this time with the input buf of the required size. */ -static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen) +static struct richacl *__nfs4_get_acl_uncached(struct inode *inode) { - struct page *pages[NFS4ACL_MAXPAGES] = {NULL, }; + struct nfs_server *server = NFS_SERVER(inode); + struct page *pages[DIV_ROUND_UP(NFS4ACL_SIZE_MAX, PAGE_SIZE)] = {}; struct nfs_getaclargs args = { .fh = NFS_FH(inode), .acl_pages = pages, - .acl_len = buflen, + .acl_len = ARRAY_SIZE(pages) * PAGE_SIZE, }; struct nfs_getaclres res = { - .acl_len = buflen, + .server = server, }; struct rpc_message msg = { .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_GETACL], .rpc_argp = &args, .rpc_resp = &res, }; - unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE); - int ret = -ENOMEM, i; - - /* As long as we're doing a round trip to the server anyway, - * let's be prepared for a page of acl data. */ - if (npages == 0) - npages = 1; - if (npages > ARRAY_SIZE(pages)) - return -ERANGE; + int err, i; - for (i = 0; i < npages; i++) { - pages[i] = alloc_page(GFP_KERNEL); - if (!pages[i]) + if (ARRAY_SIZE(pages) > 1) { + /* for decoding across pages */ + res.acl_scratch = alloc_page(GFP_KERNEL); + err = -ENOMEM; + if (!res.acl_scratch) goto out_free; } - /* for decoding across pages */ - res.acl_scratch = alloc_page(GFP_KERNEL); - if (!res.acl_scratch) - goto out_free; - - args.acl_len = npages * PAGE_SIZE; - - dprintk("%s buf %p buflen %zu npages %d args.acl_len %zu\n", - __func__, buf, buflen, npages, args.acl_len); - ret = nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode), + dprintk("%s args.acl_len %zu\n", + __func__, args.acl_len); + err = nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode), &msg, &args.seq_args, &res.seq_res, 0); - if (ret) + if (err) goto out_free; - /* Handle the case where the passed-in buffer is too short */ - if (res.acl_flags & NFS4_ACL_TRUNC) { - /* Did the user only issue a request for the acl length? */ - if (buf == NULL) - goto out_ok; - ret = -ERANGE; - goto out_free; - } - nfs4_write_cached_acl(inode, pages, res.acl_data_offset, res.acl_len); - if (buf) { - if (res.acl_len > buflen) { - ret = -ERANGE; - goto out_free; - } - _copy_from_pages(buf, pages, res.acl_data_offset, res.acl_len); - } -out_ok: - ret = res.acl_len; + richacl_compute_max_masks(res.acl); + /* FIXME: Set inode->i_mode from res->mode? */ + set_cached_richacl(inode, res.acl); + err = 0; + out_free: - for (i = 0; i < npages; i++) - if (pages[i]) - __free_page(pages[i]); + if (err) { + richacl_put(res.acl); + res.acl = ERR_PTR(err); + } + for (i = 0; i < ARRAY_SIZE(pages) && pages[i]; i++) + __free_page(pages[i]); if (res.acl_scratch) __free_page(res.acl_scratch); - return ret; + return res.acl; } -static ssize_t nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen) +static struct richacl *nfs4_get_acl_uncached(struct inode *inode) { struct nfs4_exception exception = { }; - ssize_t ret; + struct richacl *acl; do { - ret = __nfs4_get_acl_uncached(inode, buf, buflen); - trace_nfs4_get_acl(inode, ret); - if (ret >= 0) + acl = __nfs4_get_acl_uncached(inode); + trace_nfs4_get_acl(inode, IS_ERR(acl) ? PTR_ERR(acl) : 0); + if (!IS_ERR(acl)) break; - ret = nfs4_handle_exception(NFS_SERVER(inode), ret, &exception); + acl = ERR_PTR(nfs4_handle_exception(NFS_SERVER(inode), + PTR_ERR(acl), &exception)); } while (exception.retry); - return ret; + return acl; } -static ssize_t nfs4_proc_get_acl(struct inode *inode, void *buf, size_t buflen) +static struct richacl *nfs4_proc_get_acl(struct inode *inode) { struct nfs_server *server = NFS_SERVER(inode); + struct richacl *acl; int ret; - if (!nfs4_server_supports_acls(server)) - return -EOPNOTSUPP; + if (!(server->caps & (NFS_CAP_ALLOW_ACLS | NFS_CAP_DENY_ACLS))) + return ERR_PTR(-EOPNOTSUPP); ret = nfs_revalidate_inode(server, inode); if (ret < 0) - return ret; + return ERR_PTR(ret); if (NFS_I(inode)->cache_validity & NFS_INO_INVALID_ACL) nfs_zap_acl_cache(inode); - ret = nfs4_read_cached_acl(inode, buf, buflen); - if (ret != -ENOENT) - /* -ENOENT is returned if there is no ACL or if there is an ACL - * but no cached acl data, just the acl length */ - return ret; - return nfs4_get_acl_uncached(inode, buf, buflen); + acl = get_cached_richacl(inode); + if (acl != ACL_NOT_CACHED) + return acl; + return nfs4_get_acl_uncached(inode); +} + +static int +richacl_supported(struct nfs_server *server, struct richacl *acl) +{ + struct richace *ace; + + if (!(server->caps & (NFS_CAP_ALLOW_ACLS | NFS_CAP_DENY_ACLS))) + return -EOPNOTSUPP; + + richacl_for_each_entry(ace, acl) { + if (richace_is_allow(ace)) { + if (!(server->caps & NFS_CAP_ALLOW_ACLS)) + return -EINVAL; + } else if (richace_is_deny(ace)) { + if (!(server->caps & NFS_CAP_DENY_ACLS)) + return -EINVAL; + } else + return -EINVAL; + } + return 0; +} + +static int +nfs4_encode_user(struct xdr_stream *xdr, const struct nfs_server *server, + kuid_t uid) +{ + char name[IDMAP_NAMESZ]; + int len; + __be32 *p; + + len = nfs_map_uid_to_name(server, uid, name, IDMAP_NAMESZ); + if (len < 0) { + dprintk("nfs: couldn't resolve uid %d to string\n", + from_kuid(&init_user_ns, uid)); + return -ENOENT; + } + p = xdr_reserve_space(xdr, 4 + len); + if (!p) + return -EIO; + p = xdr_encode_opaque(p, name, len); + return 0; +} + +static int +nfs4_encode_group(struct xdr_stream *xdr, const struct nfs_server *server, + kgid_t gid) +{ + char name[IDMAP_NAMESZ]; + int len; + __be32 *p; + + len = nfs_map_gid_to_group(server, gid, name, IDMAP_NAMESZ); + if (len < 0) { + dprintk("nfs: couldn't resolve gid %d to string\n", + from_kgid(&init_user_ns, gid)); + return -ENOENT; + } + p = xdr_reserve_space(xdr, 4 + len); + if (!p) + return -EIO; + p = xdr_encode_opaque(p, name, len); + return 0; +} + +static unsigned int +nfs4_ace_mask(int minorversion) +{ + return minorversion == 0 ? NFS40_ACE_MASK_ALL : NFS4_ACE_MASK_ALL; +} + +static int +nfs4_encode_ace_who(struct xdr_stream *xdr, const struct nfs_server *server, + struct richace *ace, struct richacl *acl) +{ + const char *who; + __be32 *p; + + if (ace->e_flags & RICHACE_SPECIAL_WHO) { + unsigned int special_id = ace->e_id.special; + const char *who; + unsigned int len; + + if (!nfs4acl_special_id_to_who(special_id, &who, &len)) { + WARN_ON_ONCE(1); + return -EIO; + } + p = xdr_reserve_space(xdr, 4 + len); + if (!p) + return -EIO; + xdr_encode_opaque(p, who, len); + return 0; + } else { + who = richace_unmapped_identifier(ace, acl); + if (who) { + unsigned int len = strlen(who); + + p = xdr_reserve_space(xdr, 4 + len); + if (!p) + return -EIO; + xdr_encode_opaque(p, who, len); + return 0; + } else if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) + return nfs4_encode_group(xdr, server, ace->e_id.gid); + else + return nfs4_encode_user(xdr, server, ace->e_id.uid); + } +} + +static int +nfs4_encode_acl(struct page **pages, unsigned int len, struct richacl *acl, + const struct nfs_server *server) +{ + int minorversion = server->nfs_client->cl_minorversion; + unsigned int ace_mask = nfs4_ace_mask(minorversion); + struct xdr_stream xdr; + struct xdr_buf buf; + __be32 *p; + struct richace *ace; + + /* Reject acls not understood by the server */ + if (server->attr_bitmask[1] & FATTR4_WORD1_DACL) { + BUILD_BUG_ON(NFS4_ACE_MASK_ALL != RICHACE_VALID_MASK); + } else { + if (acl->a_flags) + return -EINVAL; + richacl_for_each_entry(ace, acl) { + if (ace->e_flags & RICHACE_INHERITED_ACE) + return -EINVAL; + } + } + richacl_for_each_entry(ace, acl) { + if (ace->e_mask & ~ace_mask) + return -EINVAL; + } + + xdr_init_encode_pages(&xdr, &buf, pages, len); + + if (server->attr_bitmask[1] & FATTR4_WORD1_DACL) { + p = xdr_reserve_space(&xdr, 4); + if (!p) + goto fail; + *p = cpu_to_be32(acl ? acl->a_flags : 0); + } + + p = xdr_reserve_space(&xdr, 4); + if (!p) + goto fail; + if (!acl) { + *p++ = cpu_to_be32(0); + return buf.len; + } + *p++ = cpu_to_be32(acl->a_count); + + richacl_for_each_entry(ace, acl) { + p = xdr_reserve_space(&xdr, 4*3); + if (!p) + goto fail; + *p++ = cpu_to_be32(ace->e_type); + *p++ = cpu_to_be32(ace->e_flags & + ~(RICHACE_SPECIAL_WHO | RICHACE_UNMAPPED_WHO)); + *p++ = cpu_to_be32(ace->e_mask & NFS4_ACE_MASK_ALL); + if (nfs4_encode_ace_who(&xdr, server, ace, acl) != 0) + goto fail; + } + + return buf.len; + +fail: + return -ENOMEM; } -static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen) +static int __nfs4_proc_set_acl(struct inode *inode, struct richacl *acl) { struct nfs_server *server = NFS_SERVER(inode); - struct page *pages[NFS4ACL_MAXPAGES]; + struct page *pages[DIV_ROUND_UP(NFS4ACL_SIZE_MAX, PAGE_SIZE) + 1 /* scratch */] = {}; struct nfs_setaclargs arg = { + .server = server, .fh = NFS_FH(inode), .acl_pages = pages, - .acl_len = buflen, }; struct nfs_setaclres res; struct rpc_message msg = { @@ -4758,16 +4821,20 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl .rpc_argp = &arg, .rpc_resp = &res, }; - unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE); int ret, i; - if (!nfs4_server_supports_acls(server)) - return -EOPNOTSUPP; - if (npages > ARRAY_SIZE(pages)) - return -ERANGE; - i = buf_to_pages_noslab(buf, buflen, arg.acl_pages); - if (i < 0) - return i; + ret = richacl_supported(server, acl); + if (ret) + return ret; + + ret = nfs4_encode_acl(pages, NFS4ACL_SIZE_MAX, acl, server); + if (ret < 0) { + for (i = 0; i < ARRAY_SIZE(pages) && pages[i]; i++) + put_page(pages[i]); + return ret; + } + arg.acl_len = ret; + nfs4_inode_return_delegation(inode); ret = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1); @@ -4775,8 +4842,8 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl * Free each page after tx, so the only ref left is * held by the network stack */ - for (; i > 0; i--) - put_page(pages[i-1]); + for (i = 0; i < ARRAY_SIZE(pages) && pages[i]; i++) + put_page(pages[i]); /* * Acl update can result in inode attribute update. @@ -4790,12 +4857,12 @@ static int __nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t bufl return ret; } -static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen) +static int nfs4_proc_set_acl(struct inode *inode, struct richacl *acl) { struct nfs4_exception exception = { }; int err; do { - err = __nfs4_proc_set_acl(inode, buf, buflen); + err = __nfs4_proc_set_acl(inode, acl); trace_nfs4_set_acl(inode, err); err = nfs4_handle_exception(NFS_SERVER(inode), err, &exception); @@ -6257,34 +6324,316 @@ nfs4_release_lockowner(struct nfs_server *server, struct nfs4_lock_state *lsp) rpc_call_async(server->client, &msg, 0, &nfs4_release_lockowner_ops, data); } +static int nfs4_xattr_set_richacl(struct dentry *dentry, const char *key, + const void *buf, size_t buflen, + int flags, int handler_flags) +{ + struct inode *inode = d_inode(dentry); + struct richacl *acl; + int error; + + if (strcmp(key, "") != 0) + return -EINVAL; + + if (buf) { + acl = richacl_from_xattr(&init_user_ns, buf, buflen); + if (IS_ERR(acl)) + return PTR_ERR(acl); + error = richacl_apply_masks(&acl, inode->i_uid); + } else { + /* + * "Remove the acl"; only permissions granted by the mode + * remain. We are using the cached mode here which could be + * outdated; should we do a GETATTR first to narrow down the + * race window? + */ + acl = richacl_from_mode(inode->i_mode); + error = 0; + } + + if (!error) + error = nfs4_proc_set_acl(inode, acl); + richacl_put(acl); + return error; +} + +static int nfs4_xattr_get_richacl(struct dentry *dentry, const char *key, + void *buf, size_t buflen, int handler_flags) +{ + struct inode *inode = d_inode(dentry); + struct richacl *acl; + int error; + umode_t mode = inode->i_mode & S_IFMT; + + if (strcmp(key, "") != 0) + return -EINVAL; + + acl = nfs4_proc_get_acl(inode); + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl == NULL) + return -ENODATA; + error = -ENODATA; + if (richacl_equiv_mode(acl, &mode) == 0 && + ((mode ^ inode->i_mode) & S_IRWXUGO) == 0) + goto out; + error = richacl_to_xattr(&init_user_ns, acl, buf, buflen); +out: + richacl_put(acl); + return error; +} + +static size_t nfs4_xattr_list_richacl(struct dentry *dentry, char *list, + size_t list_len, const char *name, + size_t name_len, int handler_flags) +{ + struct nfs_server *server = NFS_SERVER(d_inode(dentry)); + size_t len = sizeof(XATTR_NAME_RICHACL); + + if (!(server->caps & (NFS_CAP_ALLOW_ACLS | NFS_CAP_DENY_ACLS))) + return 0; + + if (list && len <= list_len) + memcpy(list, XATTR_NAME_RICHACL, len); + return len; +} + #define XATTR_NAME_NFSV4_ACL "system.nfs4_acl" +static __be32 *richacl_put_nfs4_ace(__be32 *p, const struct richace *ace) +{ + *p++ = cpu_to_be32(ace->e_type); + *p++ = cpu_to_be32(ace->e_flags & + ~(RICHACE_INHERITED_ACE | + RICHACE_UNMAPPED_WHO | + RICHACE_SPECIAL_WHO)); + *p++ = cpu_to_be32(ace->e_mask); + + return p; +} + +static __be32 *richacl_put_name(__be32 *p, const char *who, int who_len) +{ + unsigned int padding = -who_len & 3; + + *p++ = cpu_to_be32(who_len); + memcpy(p, who, who_len); + memset((char *)p + who_len, 0, padding); + p += DIV_ROUND_UP(who_len, 4); + + return p; +} + +static int richacl_to_nfs4_acl(struct nfs_server *server, + const struct richacl *acl, + void *buf, size_t buflen) +{ + const struct richace *ace; + __be32 *p = buf; + size_t size = 0; + + size += 4; + if (buflen >= size) + *p++ = cpu_to_be32(acl->a_count); + + richacl_for_each_entry(ace, acl) { + char who_buf[IDMAP_NAMESZ]; + const char *who = who_buf; + int who_len; + + size += 3 * 4; + if (buflen >= size) + p = richacl_put_nfs4_ace(p, ace); + + if (richace_is_unix_user(ace)) { + who_len = nfs_map_uid_to_name(server, ace->e_id.uid, + who_buf, sizeof(who_buf)); + if (who_len < 0) + return -EIO; + } else if (richace_is_unix_group(ace)) { + who_len = nfs_map_gid_to_group(server, ace->e_id.gid, + who_buf, sizeof(who_buf)); + if (who_len < 0) + return -EIO; + } else if (ace->e_flags & RICHACE_SPECIAL_WHO) { + if (!nfs4acl_special_id_to_who(ace->e_id.special, + &who, &who_len)) + return -EIO; + } else { + who = richace_unmapped_identifier(ace, acl); + if (who) + who_len = strlen(who); + else + return -EIO; + } + + size += 4 + ALIGN(who_len, 4); + if (buflen >= size) + p = richacl_put_name(p, who, who_len); + } + if (buflen && buflen < size) + return -ERANGE; + return size; +} + +static int richace_get_nfs4_ace(struct richace *ace, const __be32 **pp, + size_t *buflen) +{ + const __be32 *p = *pp; + + if (*buflen < 3 * 4) + return -EINVAL; + ace->e_type = be32_to_cpu(*p++); + ace->e_flags = be32_to_cpu(*p++); + if (ace->e_flags & (RICHACE_SPECIAL_WHO | RICHACE_UNMAPPED_WHO)) + return -EINVAL; + ace->e_mask = be32_to_cpu(*p++); + *pp = p; + *buflen -= 3 * 4; + + return 0; +} + +static ssize_t richace_get_who(struct nfs_server *server, struct richacl *acl, + struct richace *ace, const __be32 **pp, + size_t *buflen) +{ + const __be32 *p = *pp; + u32 who_len, size; + int err, special_id; + char *who; + + if (*buflen < 4) + return -EINVAL; + who_len = be32_to_cpu(*p++); + *buflen -= 4; + size = ALIGN(who_len, 4); + if (*buflen < size || size == 0) + return -EINVAL; + who = (char *)p; + special_id = nfs4acl_who_to_special_id(who, who_len); + if (special_id >= 0) { + ace->e_flags |= RICHACE_SPECIAL_WHO; + ace->e_id.special = special_id; + goto out; + } + + if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) { + err = nfs_map_group_to_gid(server, who, who_len, + &ace->e_id.gid); + if (err && err != -ENOENT) { + dprintk("%s: nfs_map_group_to_gid " + "failed!\n", __func__); + return err; + } + } else { + err = nfs_map_name_to_uid(server, who, who_len, + &ace->e_id.uid); + if (err && err != -ENOENT) { + dprintk("%s: nfs_map_name_to_gid " + "failed!\n", __func__); + return err; + } + } + + if (err == -ENOENT) { + err = -ENOMEM; + if (richacl_add_unmapped_identifier(&acl, &ace, + who, who_len, GFP_NOFS)) + return err; + } + +out: + *pp = p + size / 4; + *buflen -= size; + return 0; +} + +static struct richacl *richacl_from_nfs4_acl(struct nfs_server *server, + const void *buf, size_t buflen) +{ + struct richacl *acl = NULL; + struct richace *ace; + const __be32 *p = buf; + int count, err; + + if (buflen < 4) + return ERR_PTR(-EINVAL); + count = be32_to_cpu(*p++); + if (count > RICHACL_XATTR_MAX_COUNT) + return ERR_PTR(-EINVAL); + buflen -= 4; + acl = richacl_alloc(count, GFP_NOFS); + if (!acl) + return ERR_PTR(-ENOMEM); + richacl_for_each_entry(ace, acl) { + err = richace_get_nfs4_ace(ace, &p, &buflen); + if (err) + goto out; + err = richace_get_who(server, acl, ace, &p, &buflen); + if (err) + goto out; + + } + err = -EINVAL; + if (buflen != 0) + goto out; + err = 0; + +out: + if (err) { + richacl_put(acl); + acl = ERR_PTR(err); + } + return acl; +} + static int nfs4_xattr_set_nfs4_acl(struct dentry *dentry, const char *key, const void *buf, size_t buflen, int flags, int type) { - if (strcmp(key, "") != 0) + struct inode *inode = d_inode(dentry); + struct richacl *acl; + int error; + + if (!buf || strcmp(key, "") != 0) return -EINVAL; - return nfs4_proc_set_acl(d_inode(dentry), buf, buflen); + acl = richacl_from_nfs4_acl(NFS_SERVER(inode), (void *)buf, buflen); + if (IS_ERR(acl)) + return PTR_ERR(acl); + error = nfs4_proc_set_acl(inode, acl); + richacl_put(acl); + return error; } static int nfs4_xattr_get_nfs4_acl(struct dentry *dentry, const char *key, void *buf, size_t buflen, int type) { + struct inode *inode = d_inode(dentry); + struct richacl *acl; + int error; + if (strcmp(key, "") != 0) return -EINVAL; - - return nfs4_proc_get_acl(d_inode(dentry), buf, buflen); + acl = nfs4_proc_get_acl(inode); + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl == NULL) + return -ENODATA; + error = richacl_to_nfs4_acl(NFS_SERVER(inode), acl, buf, buflen); + richacl_put(acl); + return error; } static size_t nfs4_xattr_list_nfs4_acl(struct dentry *dentry, char *list, size_t list_len, const char *name, size_t name_len, int type) { + struct nfs_server *server = NFS_SERVER(d_inode(dentry)); size_t len = sizeof(XATTR_NAME_NFSV4_ACL); - if (!nfs4_server_supports_acls(NFS_SERVER(d_inode(dentry)))) + if (!(server->caps & (NFS_CAP_ALLOW_ACLS | NFS_CAP_DENY_ACLS))) return 0; if (list && len <= list_len) @@ -8837,6 +9186,13 @@ const struct nfs_rpc_ops nfs_v4_clientops = { .clone_server = nfs_clone_server, }; +static const struct xattr_handler nfs4_xattr_richacl_handler = { + .prefix = XATTR_NAME_RICHACL, + .list = nfs4_xattr_list_richacl, + .get = nfs4_xattr_get_richacl, + .set = nfs4_xattr_set_richacl, +}; + static const struct xattr_handler nfs4_xattr_nfs4_acl_handler = { .prefix = XATTR_NAME_NFSV4_ACL, .list = nfs4_xattr_list_nfs4_acl, @@ -8845,6 +9201,7 @@ static const struct xattr_handler nfs4_xattr_nfs4_acl_handler = { }; const struct xattr_handler *nfs4_xattr_handlers[] = { + &nfs4_xattr_richacl_handler, &nfs4_xattr_nfs4_acl_handler, #ifdef CONFIG_NFS_V4_SECURITY_LABEL &nfs4_xattr_nfs4_label_handler, diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index adeb894..2f1d6be 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -52,6 +52,10 @@ #include #include #include +#include +#include +#include /* for RICHACL_XATTR_MAX_COUNT */ +#include #include "nfs4_fs.h" #include "internal.h" @@ -1650,16 +1654,24 @@ encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) static void encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) { - __be32 *p; + int attrlen_offset; + __be32 attrlen, *p; encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); encode_nfs4_stateid(xdr, &zero_stateid); + + /* Encode attribute bitmap. */ p = reserve_space(xdr, 2*4); *p++ = cpu_to_be32(1); *p = cpu_to_be32(FATTR4_WORD0_ACL); - p = reserve_space(xdr, 4); - *p = cpu_to_be32(arg->acl_len); + + attrlen_offset = xdr->buf->len; + xdr_reserve_space(xdr, 4); /* to be backfilled later */ + xdr_write_pages(xdr, arg->acl_pages, 0, arg->acl_len); + + attrlen = htonl(xdr->buf->len - attrlen_offset - 4); + write_bytes_to_xdr_buf(xdr->buf, attrlen_offset, &attrlen, 4); } static void @@ -2488,7 +2500,7 @@ static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); replen = hdr.replen + op_decode_hdr_maxsz + 1; - encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); + encode_getattr_two(xdr, FATTR4_WORD0_ACL, FATTR4_WORD1_MODE, &hdr); xdr_inline_pages(&req->rq_rcv_buf, replen << 2, args->acl_pages, 0, args->acl_len); @@ -5262,50 +5274,156 @@ decode_restorefh(struct xdr_stream *xdr) return decode_op_hdr(xdr, OP_RESTOREFH); } +static int +nfs4_decode_ace_who(struct richace *ace, + const char **unmapped, unsigned int *unmapped_len, + const struct nfs_server *server, + struct xdr_stream *xdr) +{ + char *who; + u32 len; + int special_id; + __be32 *p; + int error; + + p = xdr_inline_decode(xdr, 4); + if (!p) + return -ENOMEM; /* acl truncated */ + len = be32_to_cpup(p++); + if (len >= XDR_MAX_NETOBJ) { + dprintk("%s: name too long (%u)!\n", + __func__, len); + return -EIO; + } + who = (char *)xdr_inline_decode(xdr, len); + if (!who) + return -ENOMEM; /* acl truncated */ + + special_id = nfs4acl_who_to_special_id(who, len); + if (special_id >= 0) { + ace->e_flags |= RICHACE_SPECIAL_WHO; + ace->e_flags &= ~RICHACE_IDENTIFIER_GROUP; + ace->e_id.special = special_id; + return 0; + } + if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) { + error = nfs_map_group_to_gid(server, who, len, &ace->e_id.gid); + if (error && error != -ENOENT) { + dprintk("%s: nfs_map_group_to_gid failed!\n", + __func__); + return error; + } + } else { + error = nfs_map_name_to_uid(server, who, len, &ace->e_id.uid); + if (error && error != -ENOENT) { + dprintk("%s: nfs_map_name_to_uid failed!\n", + __func__); + return error; + } + } + if (error == -ENOENT) { + *unmapped = who; + *unmapped_len = len; + } + return 0; +} + +static struct richacl * +decode_acl_entries(struct xdr_stream *xdr, const struct nfs_server *server) +{ + struct richacl *acl; + struct richace *ace; + uint32_t count; + __be32 *p; + int status; + + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + return ERR_PTR(-ENOMEM); /* acl truncated */ + count = be32_to_cpup(p); + if (count > RICHACL_XATTR_MAX_COUNT) + return ERR_PTR(-EIO); + acl = richacl_alloc(count, GFP_NOFS); + if (!acl) + return ERR_PTR(-ENOMEM); + richacl_for_each_entry(ace, acl) { + const char *unmapped = NULL; + unsigned int unmapped_len; + + p = xdr_inline_decode(xdr, 4*3); + status = -ENOMEM; + if (unlikely(!p)) + goto out; /* acl truncated */ + ace->e_type = be32_to_cpup(p++); + ace->e_flags = be32_to_cpup(p++); + status = -EIO; + if (ace->e_flags & + (RICHACE_SPECIAL_WHO | RICHACE_UNMAPPED_WHO)) + goto out; + ace->e_mask = be32_to_cpup(p++); + status = nfs4_decode_ace_who(ace, &unmapped, + &unmapped_len, server, + xdr); + if (status) + goto out; + if (unmapped) { + status = -ENOMEM; + if (richacl_add_unmapped_identifier(&acl, &ace, + unmapped, unmapped_len, + GFP_NOFS)) + goto out; + } + } + status = 0; + +out: + if (status) { + richacl_put(acl); + acl = ERR_PTR(status); + } + return acl; +} + static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_getaclres *res) { unsigned int savep; uint32_t attrlen, bitmap[3] = {0}; + struct richacl *acl = NULL; int status; - unsigned int pg_offset; - res->acl_len = 0; if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) - goto out; - - xdr_enter_page(xdr, xdr->buf->page_len); - - /* Calculate the offset of the page data */ - pg_offset = xdr->buf->head[0].iov_len; - + return status; if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) - goto out; + return status; if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) - goto out; + return status; if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { - - /* The bitmap (xdr len + bitmaps) and the attr xdr len words - * are stored with the acl data to handle the problem of - * variable length bitmaps.*/ - res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; - res->acl_len = attrlen; - - /* Check for receive buffer overflow */ - if (res->acl_len > (xdr->nwords << 2) || - res->acl_len + res->acl_data_offset > xdr->buf->page_len) { - res->acl_flags |= NFS4_ACL_TRUNC; - dprintk("NFS: acl reply: attrlen %u > page_len %u\n", - attrlen, xdr->nwords << 2); - } + acl = decode_acl_entries(xdr, res->server); + if (IS_ERR(acl)) + return PTR_ERR(acl); + bitmap[0] &= ~FATTR4_WORD0_ACL; } else - status = -EOPNOTSUPP; + return -EOPNOTSUPP; + + status = -EIO; + if (unlikely(bitmap[0])) + goto out; + + status = decode_attr_mode(xdr, bitmap, &res->mode); + if (status < 0) + goto out; + status = 0; out: + if (status) + richacl_put(acl); + else + res->acl = acl; return status; } diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 383a027..8ced33d 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2319,7 +2319,7 @@ void nfs_fill_super(struct super_block *sb, struct nfs_mount_info *mount_info) /* The VFS shouldn't apply the umask to mode bits. We will do * so ourselves when necessary. */ - sb->s_flags |= MS_POSIXACL; + sb->s_flags |= MS_RICHACL; sb->s_time_gran = 1; } @@ -2346,7 +2346,7 @@ void nfs_clone_super(struct super_block *sb, struct nfs_mount_info *mount_info) /* The VFS shouldn't apply the umask to mode bits. We will do * so ourselves when necessary. */ - sb->s_flags |= MS_POSIXACL; + sb->s_flags |= MS_RICHACL; } nfs_initialise_sb(sb); diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index c0e9614..b84e194 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -176,7 +176,6 @@ struct nfs_inode { wait_queue_head_t waitqueue; #if IS_ENABLED(CONFIG_NFS_V4) - struct nfs4_cached_acl *nfs4_acl; /* NFSv4 state */ struct list_head open_states; struct nfs_delegation __rcu *delegation; diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index c7d42b7..cb282e1 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -244,5 +244,7 @@ struct nfs_server { #define NFS_CAP_ALLOCATE (1U << 20) #define NFS_CAP_DEALLOCATE (1U << 21) #define NFS_CAP_LAYOUTSTATS (1U << 22) +#define NFS_CAP_ALLOW_ACLS (1U << 23) +#define NFS_CAP_DENY_ACLS (1U << 24) #endif diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 090ade4..337c341 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -683,9 +683,10 @@ struct nfs_setattrargs { struct nfs_setaclargs { struct nfs4_sequence_args seq_args; + const struct nfs_server * server; struct nfs_fh * fh; - size_t acl_len; struct page ** acl_pages; + size_t acl_len; }; struct nfs_setaclres { @@ -703,9 +704,9 @@ struct nfs_getaclargs { #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */ struct nfs_getaclres { struct nfs4_sequence_res seq_res; - size_t acl_len; - size_t acl_data_offset; - int acl_flags; + const struct nfs_server * server; + struct richacl * acl; + umode_t mode; struct page * acl_scratch; }; -- 2.5.0 From agruenba@redhat.com Tue Nov 3 09:23:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9AC6129EA4 for ; Tue, 3 Nov 2015 09:23:33 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 87E74304039 for ; Tue, 3 Nov 2015 07:23:33 -0800 (PST) X-ASG-Debug-ID: 1446564212-04cbb0660e1f7e70001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id IN4x5z3T0eaM6YPr (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 07:23:32 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id E818914CACB; Tue, 3 Nov 2015 15:23:31 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-101.ams2.redhat.com [10.36.5.101]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3FHRaH029477; Tue, 3 Nov 2015 10:23:25 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v13 51/51] nfs: Add support for the v4.1 dacl attribute Date: Tue, 3 Nov 2015 16:17:27 +0100 X-ASG-Orig-Subj: [PATCH v13 51/51] nfs: Add support for the v4.1 dacl attribute Message-Id: <1446563847-14005-52-git-send-email-agruenba@redhat.com> In-Reply-To: <1446563847-14005-1-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564212 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The dacl attribute includes Automatic Inheritance flags not supported by the acl attribute. it is only supported in NFS version 4.1 and higher. On systems where NFS version 4.0 is still the default, an additional mount option is needed: mount -t nfs4 -o vers=4.1 [...] Signed-off-by: Andreas Gruenbacher --- fs/nfs/nfs4proc.c | 2 +- fs/nfs/nfs4xdr.c | 54 ++++++++++++++++++++++++++++++++++++++++++------- include/linux/nfs_xdr.h | 2 +- 3 files changed, 49 insertions(+), 9 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 7bb2dea..191369f 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4556,7 +4556,7 @@ static struct richacl *__nfs4_get_acl_uncached(struct inode *inode) struct nfs_server *server = NFS_SERVER(inode); struct page *pages[DIV_ROUND_UP(NFS4ACL_SIZE_MAX, PAGE_SIZE)] = {}; struct nfs_getaclargs args = { - .fh = NFS_FH(inode), + .inode = inode, .acl_pages = pages, .acl_len = ARRAY_SIZE(pages) * PAGE_SIZE, }; diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 2f1d6be..a73f7c6 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -1661,9 +1661,16 @@ encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compoun encode_nfs4_stateid(xdr, &zero_stateid); /* Encode attribute bitmap. */ - p = reserve_space(xdr, 2*4); - *p++ = cpu_to_be32(1); - *p = cpu_to_be32(FATTR4_WORD0_ACL); + if (arg->server->attr_bitmask[1] & FATTR4_WORD1_DACL) { + p = reserve_space(xdr, 3*4); + *p++ = cpu_to_be32(2); + *p++ = 0; + *p = cpu_to_be32(FATTR4_WORD1_DACL); + } else { + p = reserve_space(xdr, 2*4); + *p++ = cpu_to_be32(1); + *p = cpu_to_be32(FATTR4_WORD0_ACL); + } attrlen_offset = xdr->buf->len; xdr_reserve_space(xdr, 4); /* to be backfilled later */ @@ -2498,9 +2505,12 @@ static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); - encode_putfh(xdr, args->fh, &hdr); + encode_putfh(xdr, NFS_FH(args->inode), &hdr); replen = hdr.replen + op_decode_hdr_maxsz + 1; - encode_getattr_two(xdr, FATTR4_WORD0_ACL, FATTR4_WORD1_MODE, &hdr); + if (NFS_SERVER(args->inode)->attr_bitmask[1] & FATTR4_WORD1_DACL) + encode_getattr_two(xdr, 0, FATTR4_WORD1_MODE | FATTR4_WORD1_DACL, &hdr); + else + encode_getattr_two(xdr, FATTR4_WORD0_ACL, FATTR4_WORD1_MODE, &hdr); xdr_inline_pages(&req->rq_rcv_buf, replen << 2, args->acl_pages, 0, args->acl_len); @@ -5402,12 +5412,25 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) return -EIO; - if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { + + if (bitmap[0] & FATTR4_WORD0_ACL) { + struct richace *ace; + + if (bitmap[1] & FATTR4_WORD1_DACL) + return -EIO; + acl = decode_acl_entries(xdr, res->server); if (IS_ERR(acl)) return PTR_ERR(acl); + + status = -EIO; + richacl_for_each_entry(ace, acl) { + if (ace->e_flags & RICHACE_INHERITED_ACE) + goto out; + } + bitmap[0] &= ~FATTR4_WORD0_ACL; - } else + } else if (!(bitmap[1] & FATTR4_WORD1_DACL)) return -EOPNOTSUPP; status = -EIO; @@ -5417,6 +5440,23 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, status = decode_attr_mode(xdr, bitmap, &res->mode); if (status < 0) goto out; + + if (bitmap[1] & FATTR4_WORD1_DACL) { + unsigned int flags; + __be32 *p; + + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + return -EIO; + flags = be32_to_cpup(p); + + acl = decode_acl_entries(xdr, res->server); + if (IS_ERR(acl)) + return PTR_ERR(acl); + + acl->a_flags = flags; + bitmap[1] &= ~FATTR4_WORD1_DACL; + } status = 0; out: diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 337c341..9c2a078 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -695,7 +695,7 @@ struct nfs_setaclres { struct nfs_getaclargs { struct nfs4_sequence_args seq_args; - struct nfs_fh * fh; + struct inode * inode; size_t acl_len; struct page ** acl_pages; }; -- 2.5.0 From bfoster@redhat.com Tue Nov 3 09:31:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B9B7029E10 for ; 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Tue, 3 Nov 2015 10:31:30 -0500 (EST) Date: Tue, 3 Nov 2015 10:31:30 -0500 From: Brian Foster To: hoper Cc: xfs@oss.sgi.com Subject: Re: On-disk data for XFS_DINNODE_FMT_EXTENTS Message-ID: <20151103153130.GC24445@bfoster.bfoster> X-ASG-Orig-Subj: Re: On-disk data for XFS_DINNODE_FMT_EXTENTS References: <436040866.262250269.1446544069841.JavaMail.root@zimbra84-e15.priv.proxad.net> <752500470.262252528.1446544133651.JavaMail.root@zimbra84-e15.priv.proxad.net> <20151103135026.GB24445@bfoster.bfoster> <7cfd3332920888f89d44df4dae08a9ed@hoper.dnsalias.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <7cfd3332920888f89d44df4dae08a9ed@hoper.dnsalias.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446564692 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 cc xfs On Tue, Nov 03, 2015 at 03:58:32PM +0100, hoper wrote: > Le 2015-11-03 14:50, Brian Foster a écrit : > >On Tue, Nov 03, 2015 at 10:48:53AM +0100, hoper@free.fr wrote: > >>Hi, > >> > >>I'm trying to understand how xfs is storing informations, > >>but I guess that my documentation "XFS Filesystem Structure > >>2nd Edition Revision 2" is quite outdated :( > >> > >>I made an XFS filesystem, then made 60 files in /. > >> > >># xfs_db -f /root/small > >>xfs_db> inode 128 > >>xfs_db> addr > >>current > >> byte offset 32768, length 256 > >> buffer block 64 (fsbno 8), 8 bbs > >> inode 128, dir inode 128, type inode > >>xfs_db> p > >>core.magic = 0x494e > >>core.mode = 040755 > >>core.version = 2 > >>core.format = 2 (extents) > >>[...] > >>next_unlinked = null > >>u.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,12,1,0] > >> > >>I made a small script in python which retrieve all theses information > >>from disk, > >>except the "12" (location of the X2DB block = 12*4096). From the manual, > >>and my > >>understanding, this information, 12, should be found just next the > >>di_unlinked. > >>(page 43 on the manual). But from an hex editor, from addr 32768, I got > >>this : > >> > >>49 4E 41 ED 02 02 00 00 00 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00 > >>00 00 00 00 00 00 00 01 > >>56 37 5D 71 2D 26 3D 0B 56 37 5D 6C 02 78 F1 EC 56 37 5D 6C 02 78 F1 EC > >>00 00 00 00 00 00 10 00 > >>00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00 02 00 00 00 00 > >>00 00 00 00 00 00 00 00 > >>FF FF FF FF 00 00 00 00 00 00 00 00 00 00 00 00 01 80 00 01 00 00 00 00 > >>00 00 00 00 00 00 00 00 > >> > >>First, 49 4E (IN) that's the beginning of the inode core (96 bytes). All > >>informations are here, > >>and match the output of xfs_db. But after next_unlinked (FF FF FF FF > >>here), and until next IN, > >>I can't find any 12 :( Where is it ? > >> > > > >The extent information is encoded in a format that's not easily > >interpreted from a raw hex dump. See xfs_iformat_extents() to start: > > > > dp = (xfs_bmbt_rec_t *) XFS_DFORK_PTR(dip, whichfork); > > xfs_validate_extents(ifp, nex, XFS_EXTFMT_INODE(ip)); > > for (i = 0; i < nex; i++, dp++) { > > xfs_bmbt_rec_host_t *ep = xfs_iext_get_ext(ifp, > >i); > > ep->l0 = get_unaligned_be64(&dp->l0); > > ep->l1 = get_unaligned_be64(&dp->l1); > > } > > > >So we start after di_next_unlinked and read in two 64-bit, big endian > >fields. That data in your dump above is: > > > >l0: 0x0000000000000000 > >l1: 0x0000000001800001 > > > >Then, these 64-bit fields have a special encoding themselves to map to > >actual extent data. From xfs_format.h: > > > >/* > > * Bmap btree record and extent descriptor. > > * l0:63 is an extent flag (value 1 indicates non-normal). > > * l0:9-62 are startoff. > > * l0:0-8 and l1:21-63 are startblock. > > * l1:0-20 are blockcount. > > */ > > > >We see that l0 is completely zeroed, so we can infer that this is a > >normal extent and startoff is zero. The block count is l1:0-20, which is > >00001b or 1. The start block is (((l0 & 0x1FF) << 43) | (l1 >> 21)), > >which is: > > > > ((0x0 & 0x1FF) << 43) | (0x1800001 >> 21) > > 0x0 | 0xC > > = 0xC == 12 > > > >See __xfs_bmbt_get_all() for the code that implements this decoding. > > > >Brian > > > A perfect answer. Thank you very much. > > By the way, is there, by any chance, a new version of the manual I was > looking at ? > Because I didn't saw theses informations in it... And a good doc is far more > readable > for me than source code :) > > No, the manual is somewhat out of date. That said, many of the fundamental bits are unchanged. The following from the existing guide covers the extent list inode format and actually does describe the extent record encoding as well (see the first diagram): http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/Data_Extents.html Brian From andreas.gruenbacher@gmail.com Tue Nov 3 09:54:36 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D14F97F83 for ; Tue, 3 Nov 2015 09:54:36 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 67570AC009 for ; Tue, 3 Nov 2015 07:54:36 -0800 (PST) X-ASG-Debug-ID: 1446566073-04bdf0330b1fdba0001-NocioJ Received: from mail-wm0-f44.google.com (mail-wm0-f44.google.com [74.125.82.44]) by cuda.sgi.com with ESMTP id Y0otDbu1Xc7Zf3Yf (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 03 Nov 2015 07:54:34 -0800 (PST) X-Barracuda-Envelope-From: andreas.gruenbacher@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.44 Received: by wmec75 with SMTP id c75so90220673wme.1 for ; Tue, 03 Nov 2015 07:54:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=ERJpf6nT/nkADFW2N7MPn/Of2TMm8rrwl9J3yNmTJi8=; b=JTDzOFcH1HM5My/qQMiuMPTlJeoDc8yyRFCvjTqzvZwI9uj/BYRDBft81aEg72X2Vo GXhRyyDNPwSPRIN/6gXjQO1XMvTi31tJ0h2qcZg/422rmQW+nb3SPb6f+jPb63lFLSj2 9DI5bg2wvzlGklQrfYEi51mBaL801ZInl1ZRzw9OjrNWGFx8xqn+uE+PUM42yBGHwiSU BzR77hMG0CmTReHFJG/WkV86AKtiLtC16TM/KMdmAWV5XJyBU96KREQsg9rt+LPF7Egv P1K8OTwQRiYJk9V3Xrwvjj5M7qu2m1e36sAznB55b10P9RaKEKRUL1A/uY96SMJxY/eI zMAQ== MIME-Version: 1.0 X-Received: by 10.28.131.84 with SMTP id f81mr19395290wmd.57.1446566073066; Tue, 03 Nov 2015 07:54:33 -0800 (PST) Received: by 10.27.11.17 with HTTP; Tue, 3 Nov 2015 07:54:33 -0800 (PST) In-Reply-To: <4425824.kIWhRaBxBZ@wuerfel> References: <4425824.kIWhRaBxBZ@wuerfel> Date: Tue, 3 Nov 2015 16:54:33 +0100 Message-ID: Subject: Re: [PATCH] xfs: only modify ACLs if CONFIG_XFS_POSIX_ACL enabled From: =?UTF-8?Q?Andreas_Gr=C3=BCnbacher?= X-ASG-Orig-Subj: Re: [PATCH] xfs: only modify ACLs if CONFIG_XFS_POSIX_ACL enabled To: Arnd Bergmann Cc: Dave Chinner , Dave Chinner , Brian Foster , Andreas Gruenbacher , xfs@oss.sgi.com, Linux Kernel Mailing List , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f44.google.com[74.125.82.44] X-Barracuda-Start-Time: 1446566074 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24071 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Hi Arnd, 2015-11-03 14:43 GMT+01:00 Arnd Bergmann : > A recent bug fix added a call to forget_cached_acl(), but that > function is not always available, so we can get a build error > here [...] didn't expect anybody to trip over this anytime soon... I've sent a fix yesterday, http://oss.sgi.com/archives/xfs/2015-11/msg00028.html and Dave has already fixed it in for-next: git//git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git Thanks, Andreas From trond.myklebust@primarydata.com Tue Nov 3 10:25:52 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 558217CBF for ; Tue, 3 Nov 2015 10:25:52 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4481A8F8033 for ; Tue, 3 Nov 2015 08:25:49 -0800 (PST) X-ASG-Debug-ID: 1446567946-04cbb0660c1f9db0001-NocioJ Received: from mail-oi0-f48.google.com (mail-oi0-f48.google.com [209.85.218.48]) by cuda.sgi.com with ESMTP id EbnA4N6TurSdaS1B (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 03 Nov 2015 08:25:46 -0800 (PST) X-Barracuda-Envelope-From: trond.myklebust@primarydata.com X-Barracuda-Apparent-Source-IP: 209.85.218.48 Received: by oiad129 with SMTP id d129so11703115oia.0 for ; Tue, 03 Nov 2015 08:25:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=primarydata_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=dLaT4nvAJq5p3EA2H/rcBJTFSLruL20tLhtHHkml+o8=; b=bleB/9fi6qr7N5fzWEVpaWLzTk7QsB7C8WA+AtOzLjE+XL4h2fGmMpq6CUwVd4vVTN y9wvKi3vFmm/BJWfy8FREaAaRyz1ZTRLVY6ySTh78+r+WlOzc2ET3NK5bTNkNqXDMt1i xJPTqWA/vY/UtyATjuFJVvzVoZl6pGxQEA/vCHLnCzetYBJwWKURCD6tjtygKOMETl4g EIN6CbgVhG4sNo60EHQLRxuJCWT+1UEj9KvGNcdo+Ik4n2RPpdHfPZ/JJVrbAWxA+yL1 R6bhJNEXPPE9eqEPPexpZsRxvLhPiSWoKBVnotEAosXhI0vZ5rIF8fE9e0f28W+zSINK pOKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=dLaT4nvAJq5p3EA2H/rcBJTFSLruL20tLhtHHkml+o8=; b=m6xZpVFToWJ+GkaKcScsIBhbM0W/cEDGefUt6P+oHqjxGp+tiwd8QYQwBsCV8xnYFa Yd8A5qsxqDh2XSvdf7yDDZCUOGWwPd+v3EIcqbU/YUwOxSXwW4ntw0tUXWKoGWgMLVtI /w2uxzvKwVcmHmOzo0LEnCXzXtXfhY6Yu/1CjYihKYYFLGDE9/X74rYku6pmwKlp9cHF vUVM+dBGi/tO4lOFjvyjJYIBpxYuKX/v5pAmg/ibq/JM8cohg7gaUh8QdjnMlUIBzvof g6okgooQK+viX2AAF1YTi0XqXyCh9sG73y4ewGcPU0T7ANy5iy472M8s1TDE2xma3q/w Pyzw== X-Gm-Message-State: ALoCoQmv/atQ2y5WzgY9wHzNE3dpQmRBiDrBh8uibHpQSCUCnpCsCUIrforklvjZL8a/LLdN5ADh MIME-Version: 1.0 X-Received: by 10.202.84.209 with SMTP id i200mr18207922oib.133.1446567946326; Tue, 03 Nov 2015 08:25:46 -0800 (PST) Received: by 10.202.95.7 with HTTP; Tue, 3 Nov 2015 08:25:46 -0800 (PST) In-Reply-To: <1446563847-14005-46-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-46-git-send-email-agruenba@redhat.com> Date: Tue, 3 Nov 2015 11:25:46 -0500 Message-ID: Subject: Re: [PATCH v13 45/51] sunrpc: Allow to demand-allocate pages to encode into From: Trond Myklebust X-ASG-Orig-Subj: Re: [PATCH v13 45/51] sunrpc: Allow to demand-allocate pages to encode into To: Andreas Gruenbacher Cc: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, Linux Kernel Mailing List , Linux FS-devel Mailing List , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Mailing List Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-oi0-f48.google.com[209.85.218.48] X-Barracuda-Start-Time: 1446567946 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24071 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Tue, Nov 3, 2015 at 10:17 AM, Andreas Gruenbacher wrote: > When encoding large, variable-length objects such as acls into xdr_bufs, > it is easier to allocate buffer pages on demand rather than precomputing > the required buffer size. > NACK. We're not doing allocations from inside the XDR encoders. This can and should be done before calling into the SUNRPC layer. Trond From trond.myklebust@primarydata.com Tue Nov 3 10:30:21 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 71A0F7F52 for ; Tue, 3 Nov 2015 10:30:21 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 40FBD304053 for ; Tue, 3 Nov 2015 08:30:21 -0800 (PST) X-ASG-Debug-ID: 1446568219-04cbb0660c1f9fb0001-NocioJ Received: from mail-ob0-f182.google.com (mail-ob0-f182.google.com [209.85.214.182]) by cuda.sgi.com with ESMTP id 7dEvidaimXAyDl94 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 03 Nov 2015 08:30:19 -0800 (PST) X-Barracuda-Envelope-From: trond.myklebust@primarydata.com X-Barracuda-Apparent-Source-IP: 209.85.214.182 Received: by obbza9 with SMTP id za9so16461064obb.1 for ; Tue, 03 Nov 2015 08:30:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=primarydata_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=U64E7QOXNzcwkzcKfmchTrKOXLmtgJiwpT/4AGbI4ZA=; b=AKR9hJTqyi+092ibQAOvuhojo81edO6wT3MLMWU+u/hzCkxhVm6EIpwgXBW/usz5E6 gpXwPFoxx7B4mvbPezU1p9bGOuFRjkmZbBeOuL2pBAM3v0BtJRRtbpHNcwKbvpwRdqIP 2eM723vnlyfedWG9oCyrfN218QwPmPkpOdOr28KMpI/tChQdISUSdche9q1i8gRTU91Z tpRrAY9AvP86KKxdIyFLyBlIDmpu2MY+QpuShNVM4gDYcP8CGEXoeYfLi8+jlMhmJpQ5 x+zge8ayaB4pCvSD+53YWPg3bNkYxBJsfVVRBqpS/G3x0mB4nVnqFVOvAAOtwHEhYrn/ LyJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=U64E7QOXNzcwkzcKfmchTrKOXLmtgJiwpT/4AGbI4ZA=; b=YSLzbAqnJYQm+5Z2DvwGUwl7ZMZd4GPuYE8JWN6yF7Y4ObFYevafJfUYJyKX7VMjSS XWkFIWFtMpPkg6w1Lb0Z+nDCEYhKKT2LUVaYeyShA8LrzLk5HzyQ4XE3cvik0hZh5W0X 69GHQKrIbsY2b9aQCQiaKgwHH/RPFJKaKOU0x/z9+5GPrrWWeTWPzlJ1ECF4Wr+ud2Rm 23qUdrpn0iPY7vkTVUvdPZ2Y3L3CSdy8vUuLx6kOseOZxipl8fWTvqV7K4CbIjw+Nl0U u2ZKn0IS2NdlNzYcY/cN78/3JYMbr+Yzk7EszrE3minyMiKOAJ9tpZvUSWlVf1yTVCNl VqDg== X-Gm-Message-State: ALoCoQmHEdscAJheBwttOnmszncEJ51eJ48jMNieBsGP1H8qG/rsZQAAt3JuRYSg97q5sYEV5R+n MIME-Version: 1.0 X-Received: by 10.60.76.42 with SMTP id h10mr18575492oew.13.1446568219404; Tue, 03 Nov 2015 08:30:19 -0800 (PST) Received: by 10.202.95.7 with HTTP; Tue, 3 Nov 2015 08:30:19 -0800 (PST) In-Reply-To: <1446563847-14005-48-git-send-email-agruenba@redhat.com> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-48-git-send-email-agruenba@redhat.com> Date: Tue, 3 Nov 2015 11:30:19 -0500 Message-ID: Subject: Re: [PATCH v13 47/51] nfs: Fix GETATTR bitmap verification From: Trond Myklebust X-ASG-Orig-Subj: Re: [PATCH v13 47/51] nfs: Fix GETATTR bitmap verification To: Andreas Gruenbacher Cc: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, Linux Kernel Mailing List , Linux FS-devel Mailing List , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Mailing List Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-ob0-f182.google.com[209.85.214.182] X-Barracuda-Start-Time: 1446568219 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24071 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Tue, Nov 3, 2015 at 10:17 AM, Andreas Gruenbacher wrote: > When decoding GETATTR replies, the client checks the attribute bitmap > for which attributes the server has sent. It misses bits at the word > boundaries, though; fix that. > > Signed-off-by: Andreas Gruenbacher > --- > fs/nfs/nfs4xdr.c | 23 +++++++++++++++++++++++ > 1 file changed, 23 insertions(+) > > diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c > index 788adf3..6f6d921 100644 > --- a/fs/nfs/nfs4xdr.c > +++ b/fs/nfs/nfs4xdr.c > @@ -4375,6 +4375,11 @@ static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) > goto xdr_error; > if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) > goto xdr_error; > + > + status = -EIO; > + if (unlikely(bitmap[0])) > + goto xdr_error; > + > if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) > goto xdr_error; > if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) > @@ -4574,6 +4579,10 @@ static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, > goto xdr_error; > fattr->valid |= status; > > + status = -EIO; > + if (unlikely(bitmap[0])) > + goto xdr_error; > + > status = decode_attr_mode(xdr, bitmap, &fmode); > if (status < 0) > goto xdr_error; > @@ -4627,6 +4636,10 @@ static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, > goto xdr_error; > fattr->valid |= status; > > + status = -EIO; > + if (unlikely(bitmap[1])) > + goto xdr_error; > + > status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); > if (status < 0) > goto xdr_error; > @@ -4789,12 +4802,22 @@ static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) > if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) > goto xdr_error; > fsinfo->wtpref = fsinfo->wtmax; > + > + status = -EIO; > + if (unlikely(bitmap[0])) > + goto xdr_error; > + > status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); > if (status != 0) > goto xdr_error; > status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); > if (status != 0) > goto xdr_error; > + > + status = -EIO; > + if (unlikely(bitmap[1])) > + goto xdr_error; > + > status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); > if (status) > goto xdr_error; > -- > 2.5.0 This patch can and should be merged separately from this patchset. Please submit it through the usual channels. Trond From david@fromorbit.com Tue Nov 3 13:11:55 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A02A87FCB for ; Tue, 3 Nov 2015 13:11:55 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 92215304039 for ; Tue, 3 Nov 2015 11:11:52 -0800 (PST) X-ASG-Debug-ID: 1446577905-04cbb02422011a0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 2XU197AnpfKRWE9u for ; Tue, 03 Nov 2015 11:11:46 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2C5BgAjBjlW/+rW03ZegztTb6pNAQEGiy6JKyGFbAQCAoFBTQEBAQEBAYELhDYBAQQ6HCMQCAMOCgklDwUlAyETiC0OwgUBAQEBAQUBAQEBAQEdGYV1hUWCcYUzgRQFlkaFHYd9nEZjghEdgWoqNAGFMwEBAQ Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 04 Nov 2015 05:41:44 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZtgzU-0005cZ-9B; Wed, 04 Nov 2015 06:11:32 +1100 Date: Wed, 4 Nov 2015 06:11:32 +1100 From: Dave Chinner To: Michael Weissenbacher Cc: xfs@oss.sgi.com Subject: Re: Is it possible to change sunit of log section post-mkfs Message-ID: <20151103191132.GD19199@dastard> X-ASG-Orig-Subj: Re: Is it possible to change sunit of log section post-mkfs References: <5638A62D.1020802@dermichi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5638A62D.1020802@dermichi.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446577906 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24076 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Nov 03, 2015 at 01:18:53PM +0100, Michael Weissenbacher wrote: > Hi! > I have a XFS file system which lies on a 10-disk RAID-6 device that was > created with Chunk Size = 1MiB. > On mkfs.xfs time this was - as far as i know - specified with "-d > su=1m,sw=8". > > xfs_info shows the following: > meta-data=/dev/sdb1 isize=256 agcount=15, > agsize=268435200 blks > = sectsz=512 attr=2 > data = bsize=4096 blocks=3905945088, imaxpct=5 > = sunit=256 swidth=2048 blks > naming =version 2 bsize=4096 ascii-ci=0 > log =internal bsize=4096 blocks=521728, version=2 > = sectsz=512 sunit=8 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > > Interestingly, the sunit value of the log seems to be incorrect - as it > should be 256 too, like the sunit value of the data. I am pretty sure > the reason is that the log sunit cannot be 256 blks (=1024KiB) and > because of this mkfs.xfs did fall back to the default of 8 blks > (=32KiB). I found evidence of this in the following thread: > http://oss.sgi.com/archives/xfs/2012-06/msg00431.html > > What i want to achieve is to set the log sunit to the maximum possible > of 64 blks (=256KiB). Why? Is there a performance problem with the default setting? Cheers, Dave. -- Dave Chinner david@fromorbit.com From mw@dermichi.com Tue Nov 3 13:22:48 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 216A17FCC for ; Tue, 3 Nov 2015 13:22:48 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 025E38F8049 for ; Tue, 3 Nov 2015 11:22:44 -0800 (PST) X-ASG-Debug-ID: 1446578557-04bdf03f0401580001-NocioJ Received: from firestarter.dermichi.com (firestarter.dermichi.com [194.177.153.153]) by cuda.sgi.com with ESMTP id F5oDVXRiOEcmSVPI (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 11:22:38 -0800 (PST) X-Barracuda-Envelope-From: mw@dermichi.com X-Barracuda-Apparent-Source-IP: 194.177.153.153 Received: from 191-159-177-194.static.net4you.net ([194.177.159.191] helo=[192.168.17.108]) by firestarter.dermichi.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim) (envelope-from ) id 1ZthAC-0004WC-8f; Tue, 03 Nov 2015 20:22:36 +0100 Subject: Re: Is it possible to change sunit of log section post-mkfs To: Brian Foster X-ASG-Orig-Subj: Re: Is it possible to change sunit of log section post-mkfs References: <5638A62D.1020802@dermichi.com> <20151103130246.GA24445@bfoster.bfoster> Cc: xfs@oss.sgi.com From: Michael Weissenbacher Message-ID: <56390979.2090509@dermichi.com> Date: Tue, 3 Nov 2015 20:22:33 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151103130246.GA24445@bfoster.bfoster> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: firestarter.dermichi.com[194.177.153.153] X-Barracuda-Start-Time: 1446578558 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24078 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi Brian! On 2015-11-03 14:02, Brian Foster wrote: > I don't believe there's any supported way to do this. Well, at least i didn't miss anything in the documentation :-) On 2015-11-03 14:02, Brian Foster wrote: > Out of curiosity, > I just tried an experiment to modify the superblock logsunit via xfs_db > and run repair to zero the log. That seemed to work in terms of taking > effect on the subsequent mount, but that's certainly not something I > would suggest to do in production. Ok, so it would definitely be too risky for a production system. On 2015-11-03 14:02, Brian Foster wrote: > Note that mkfs aligns the physical > log based on the stripe unit as well, so it wouldn't really have the > same effect anyways. TBH, i didn't quite understand that part :-) Are you saying, even if i would modify the log's sunit size using xfs_db, it would still not be aligned correctly? thanks, Michael From mw@dermichi.com Tue Nov 3 13:32:27 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id ECEB27FCD for ; Tue, 3 Nov 2015 13:32:26 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 71244AC002 for ; Tue, 3 Nov 2015 11:32:20 -0800 (PST) X-ASG-Debug-ID: 1446579137-04cbb0242301850001-NocioJ Received: from firestarter.dermichi.com (firestarter.dermichi.com [194.177.153.153]) by cuda.sgi.com with ESMTP id 2UK82EkayX2gnIoe (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 11:32:18 -0800 (PST) X-Barracuda-Envelope-From: mw@dermichi.com X-Barracuda-Apparent-Source-IP: 194.177.153.153 Received: from 191-159-177-194.static.net4you.net ([194.177.159.191] helo=[192.168.17.108]) by firestarter.dermichi.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim) (envelope-from ) id 1ZthJY-0004tn-Fb; Tue, 03 Nov 2015 20:32:16 +0100 Subject: Re: Is it possible to change sunit of log section post-mkfs To: Dave Chinner X-ASG-Orig-Subj: Re: Is it possible to change sunit of log section post-mkfs References: <5638A62D.1020802@dermichi.com> <20151103191132.GD19199@dastard> Cc: xfs@oss.sgi.com From: Michael Weissenbacher X-Enigmail-Draft-Status: N1010 Message-ID: <56390BBE.6030102@dermichi.com> Date: Tue, 3 Nov 2015 20:32:14 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151103191132.GD19199@dastard> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: firestarter.dermichi.com[194.177.153.153] X-Barracuda-Start-Time: 1446579137 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24077 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi Dave! >> >> What i want to achieve is to set the log sunit to the maximum possible >> of 64 blks (=256KiB). On 2015-11-03 20:11, Dave Chinner wrote: > > Why? Is there a performance problem with the default setting? > I am seeing very bad performance of "rm" on this file system. Of course I know that RAID-6 is kind of a worst case setup for that workload. But I was hoping that aligning the log correctly plus increasing the stripe size would help. Wouldn't the file system write more of the log at once with a bigger sunit size; resulting in fewer RMW cycles? I am already using delaylog, inode64, nobarrier to mount the fs; lazy-count=1. Maybe moving to an external log would be the best option? tia, Michael From bfoster@redhat.com Tue Nov 3 13:39:52 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 43AB37FAE for ; Tue, 3 Nov 2015 13:39:52 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1452330404E for ; Tue, 3 Nov 2015 11:39:51 -0800 (PST) X-ASG-Debug-ID: 1446579590-04bdf03f0301b30001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id sGbao05d9SiMccVu (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 03 Nov 2015 11:39:50 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 5BB36C100441; Tue, 3 Nov 2015 19:39:50 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-105.bos.redhat.com [10.18.41.105]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA3JdoZI016970; Tue, 3 Nov 2015 14:39:50 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id B67CF1201AB; Tue, 3 Nov 2015 14:39:48 -0500 (EST) Date: Tue, 3 Nov 2015 14:39:48 -0500 From: Brian Foster To: Michael Weissenbacher Cc: xfs@oss.sgi.com Subject: Re: Is it possible to change sunit of log section post-mkfs Message-ID: <20151103193948.GD24445@bfoster.bfoster> X-ASG-Orig-Subj: Re: Is it possible to change sunit of log section post-mkfs References: <5638A62D.1020802@dermichi.com> <20151103130246.GA24445@bfoster.bfoster> <56390979.2090509@dermichi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56390979.2090509@dermichi.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446579590 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Nov 03, 2015 at 08:22:33PM +0100, Michael Weissenbacher wrote: > Hi Brian! > > On 2015-11-03 14:02, Brian Foster wrote: > > I don't believe there's any supported way to do this. > Well, at least i didn't miss anything in the documentation :-) > > On 2015-11-03 14:02, Brian Foster wrote: > > Out of curiosity, > > I just tried an experiment to modify the superblock logsunit via xfs_db > > and run repair to zero the log. That seemed to work in terms of taking > > effect on the subsequent mount, but that's certainly not something I > > would suggest to do in production. > Ok, so it would definitely be too risky for a production system. > > On 2015-11-03 14:02, Brian Foster wrote: > > Note that mkfs aligns the physical > > log based on the stripe unit as well, so it wouldn't really have the > > same effect anyways. > TBH, i didn't quite understand that part :-) > Are you saying, even if i would modify the log's sunit size using > xfs_db, it would still not be aligned correctly? > Yes, exactly. mkfs uses the log stripe unit to decide where to put the log on disk. If the log itself is not aligned, then there's little use in aligning the writes to the log. Brian > thanks, > Michael > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From david@fromorbit.com Tue Nov 3 13:48:55 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6623E7FCB for ; Tue, 3 Nov 2015 13:48:55 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 0C33FAC005 for ; Tue, 3 Nov 2015 11:48:51 -0800 (PST) X-ASG-Debug-ID: 1446580128-04bdf03f0201e00001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id mB8MEJG449veBnkA for ; Tue, 03 Nov 2015 11:48:49 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2C2BgAWDjlW/+rW03ZegzuBQqpNAQEGiy6JK4YNBAICgUFNAQEBAQEBgQuENQEBAQMBOhwjBQsIAw4KCSUPBSUDIROIJgfCJgEBAQEGAgEgGYV1hUWENINwgRQFlkaNGoFih2OTAWOCER2Baio0g2qBSgEBAQ Received: from ppp118-211-214-234.lns20.syd4.internode.on.net (HELO dastard) ([118.211.214.234]) by ipmail07.adl2.internode.on.net with ESMTP; 04 Nov 2015 06:18:48 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZthZL-0005gj-Ms; Wed, 04 Nov 2015 06:48:35 +1100 Date: Wed, 4 Nov 2015 06:48:35 +1100 From: Dave Chinner To: Michael Weissenbacher Cc: xfs@oss.sgi.com Subject: Re: Is it possible to change sunit of log section post-mkfs Message-ID: <20151103194835.GE19199@dastard> X-ASG-Orig-Subj: Re: Is it possible to change sunit of log section post-mkfs References: <5638A62D.1020802@dermichi.com> <20151103191132.GD19199@dastard> <56390BBE.6030102@dermichi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56390BBE.6030102@dermichi.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1446580128 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24078 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Nov 03, 2015 at 08:32:14PM +0100, Michael Weissenbacher wrote: > Hi Dave! > > >> > >> What i want to achieve is to set the log sunit to the maximum possible > >> of 64 blks (=256KiB). > On 2015-11-03 20:11, Dave Chinner wrote: > > > > Why? Is there a performance problem with the default setting? > > > I am seeing very bad performance of "rm" on this file system. Of course > I know that RAID-6 is kind of a worst case setup for that workload. But > I was hoping that aligning the log correctly plus increasing the stripe > size would help. Wouldn't the file system write more of the log at once > with a bigger sunit size; resulting in fewer RMW cycles? "rm is slow" could be many, many thingsr. Generally rm is limited by directory/inode read speed, not log IO. You need to find out exactly what is "slow" in rm before going knob twiddling. Is there iowait time? If so, what IO is generating the iowait? Is rm CPU bound? Is the log sleeping waiting for buffer space? is the log tail pushing? etc, etc. > I am already using delaylog, inode64, nobarrier to mount the fs; > lazy-count=1. IOWs, the defaults. > Maybe moving to an external log would be the best option? You haven't even determined that there's a problem with the log yet. Twiddling knobs does not solve problems. Analyse the problem first, understand where the "slowness" is coming from, and that understanding will tell you is there's a knob that you can twiddle to alleviate the problem. Keep in mind that if you have lots of inodes, small files and/or metadata intensive workloads, then it's very likely the RAID setup is the problem, not the filesystem. Cheers, Dave. -- Dave Chinner david@fromorbit.com From adilger@dilger.ca Tue Nov 3 16:30:06 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 21C1B7FB7 for ; Tue, 3 Nov 2015 16:30:06 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6D06BAC002 for ; Tue, 3 Nov 2015 14:30:02 -0800 (PST) X-ASG-Debug-ID: 1446589797-04cbb0242405d10001-NocioJ Received: from mail-pa0-f46.google.com (mail-pa0-f46.google.com [209.85.220.46]) by cuda.sgi.com with ESMTP id kQWBXLxP46xXh1KJ (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 03 Nov 2015 14:29:58 -0800 (PST) X-Barracuda-Envelope-From: adilger@dilger.ca X-Barracuda-Apparent-Source-IP: 209.85.220.46 Received: by padhx2 with SMTP id hx2so22830523pad.1 for ; Tue, 03 Nov 2015 14:29:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dilger_ca.20150623.gappssmtp.com; s=20150623; h=subject:mime-version:content-type:from:in-reply-to:date:cc :message-id:references:to; bh=o1cBXJW5WN20pMmmfZmAlbiQWWH9qywUeaIraSPtw4s=; b=DOVBSFnG9GiaPfpNRCI695maHvh0R2Qg4bXwXHgC66ds5XgQp7oaNdTP6kzT6IpVZs BsXs6pc2JQooRGcBYZp1htaAw4yqsvqTnoPXTJ5LpfwlKq7DQI7YuLWC3wsA3ecPU1tO U55lLs+zUQpDyarEmHvGODZgV/dZa4dvkWuyn4GMmMvCSSfbp4rIgYwVlqMu3q+s4FD9 jedzAzP+Qe4Ttm89L5PppwMTYDYo0TlsX9p2zyB0G3ot1/ljB39zYW2DLoMwCLtty+Vw 4eyKqPqG8oFu3pNO3KQD/LovleqW4ZPu0vQ3++pPSJQY2XzKTqaUm7YUV4O4C4KD6D9M zcBQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:mime-version:content-type:from :in-reply-to:date:cc:message-id:references:to; bh=o1cBXJW5WN20pMmmfZmAlbiQWWH9qywUeaIraSPtw4s=; b=EueFHjK2kzr62OX4ud4kK3YwvPJ1hx0SLZ4ltmBsFRS+kbUuKOR+kFEmbSoj+ANHmK GWbDVOlamNRzfEtpWdHZieSgMS5hT2VKg1Wbd3u33cssd3738tMQHnuclU0ymNfOaVvC WC3SgP68wMnaK+syIV2FaugNVJ8rj43MlVEuY44trT392nmIw3BZMMgk+9ZRL9cdW0Qj 2Q9VUZJmYyXI2HwynKCGeQlJsRzk/0u3FowQEopMgHtSOaKS6p41AESeCtFHxWPp1MJ2 3NGoTdHgjfCfCCQB8zAof+y1LHAbKyl8UoRvMPkYK/huEpahWz4+knblZanF2cFKqyMM SkMA== X-Gm-Message-State: ALoCoQmmQMzUCEIadoEukeLJX+Je0vbFdQKMervajS/ImuQjwtmhql4arM1y56UWsw2nrZ+uU4Zr X-Received: by 10.66.189.68 with SMTP id gg4mr37122089pac.6.1446589797075; Tue, 03 Nov 2015 14:29:57 -0800 (PST) Received: from cabot-wlan.adilger.int (S0106002191d9348b.cg.shawcable.net. [96.51.76.157]) by smtp.gmail.com with ESMTPSA id kj3sm16473383pbc.59.2015.11.03.14.29.54 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 03 Nov 2015 14:29:56 -0800 (PST) Subject: Re: [PATCH v13 10/51] vfs: Cache base_acl objects in inodes Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v13 10/51] vfs: Cache base_acl objects in inodes Content-Type: multipart/signed; boundary="Apple-Mail=_124A55A8-7810-46A6-8154-225356928F53"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446563847-14005-11-git-send-email-agruenba@redhat.com> Date: Tue, 3 Nov 2015 15:29:50 -0700 Cc: Alexander Viro , Theodore Ts'o , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Message-Id: References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-11-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f46.google.com[209.85.220.46] X-Barracuda-Start-Time: 1446589797 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24082 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_124A55A8-7810-46A6-8154-225356928F53 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Nov 3, 2015, at 8:16 AM, Andreas Gruenbacher = wrote: >=20 > POSIX ACLs and richacls are both objects allocated by kmalloc() with a > reference count which are freed by kfree_rcu(). An inode can either > cache an access and a default POSIX ACL, or a richacl (richacls do not > have default acls). To allow an inode to cache either of the two = kinds > of acls, introduce a new base_acl type and convert i_acl and > i_default_acl to that type. In most cases, the vfs then doesn't have = to > care which kind of acl an inode caches (if any). For new wrapper functions like this better to name them as "NOUN_VERB" = so rather than "VERB_NOUN" so that related functions sort together, like base_acl_init(), base_acl_get(), base_acl_put(), base_acl_refcount(), = etc. > Signed-off-by: Andreas Gruenbacher > --- > drivers/staging/lustre/lustre/llite/llite_lib.c | 2 +- > fs/f2fs/acl.c | 4 ++-- > fs/inode.c | 4 ++-- > fs/jffs2/acl.c | 6 ++++-- > fs/posix_acl.c | 18 = +++++++++--------- > include/linux/fs.h | 25 = ++++++++++++++++++++++--- > include/linux/posix_acl.h | 12 ++++-------- > include/linux/richacl.h | 2 +- > 8 files changed, 45 insertions(+), 28 deletions(-) >=20 > diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c = b/drivers/staging/lustre/lustre/llite/llite_lib.c > index b4ed6c8..5766f69 100644 > --- a/drivers/staging/lustre/lustre/llite/llite_lib.c > +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c > @@ -1118,7 +1118,7 @@ void ll_clear_inode(struct inode *inode) > } > #ifdef CONFIG_FS_POSIX_ACL > else if (lli->lli_posix_acl) { > - LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) =3D=3D= 1); > + = LASSERT(atomic_read(&lli->lli_posix_acl->a_base.ba_refcount) =3D=3D 1); It probably makes sense to have a wrapper for this, like = base_acl_refcount() so that the details are similarly abstracted from the callers, or there isn't much benefit to having get_base_acl() and put_base_acl() at all. > LASSERT(lli->lli_remote_perms =3D=3D NULL); > posix_acl_release(lli->lli_posix_acl); > lli->lli_posix_acl =3D NULL; > diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c > index c8f25f7..a4207de 100644 > --- a/fs/f2fs/acl.c > +++ b/fs/f2fs/acl.c > @@ -270,7 +270,7 @@ static struct posix_acl *f2fs_acl_clone(const = struct posix_acl *acl, > sizeof(struct posix_acl_entry); > clone =3D kmemdup(acl, size, flags); > if (clone) > - atomic_set(&clone->a_refcount, 1); > + atomic_set(&clone->a_base.ba_refcount, 1); This should be base_acl_init() since this should also reset the RCU = state if it was just copied from "acl" above. That wouldn't be quite correct = if there are other fields added to struct base_acl that don't need to be initialized when it is copied, so possibly base_acl_reinit() would be = better here and below if that will be the case in the near future (I haven't = looked through the whole patch series yet). > } > return clone; > } > @@ -282,7 +282,7 @@ static int f2fs_acl_create_masq(struct posix_acl = *acl, umode_t *mode_p) > umode_t mode =3D *mode_p; > int not_equiv =3D 0; >=20 > - /* assert(atomic_read(acl->a_refcount) =3D=3D 1); */ > + /* assert(atomic_read(acl->a_base.ba_refcount) =3D=3D 1); */ May as well make the comment use the base_acl_refcount() wrapper = function too. >=20 > FOREACH_ACL_ENTRY(pa, acl, pe) { > switch(pa->e_tag) { > diff --git a/fs/inode.c b/fs/inode.c > index 78a17b8..2a387f4 100644 > --- a/fs/inode.c > +++ b/fs/inode.c > @@ -233,9 +233,9 @@ void __destroy_inode(struct inode *inode) >=20 > #ifdef CONFIG_FS_POSIX_ACL > if (inode->i_acl && inode->i_acl !=3D ACL_NOT_CACHED) > - posix_acl_release(inode->i_acl); > + put_base_acl(inode->i_acl); > if (inode->i_default_acl && inode->i_default_acl !=3D = ACL_NOT_CACHED) > - posix_acl_release(inode->i_default_acl); > + put_base_acl(inode->i_default_acl); > #endif > this_cpu_dec(nr_inodes); > } > diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c > index 2f7a3c0..04a5836 100644 > --- a/fs/jffs2/acl.c > +++ b/fs/jffs2/acl.c > @@ -294,13 +294,15 @@ int jffs2_init_acl_post(struct inode *inode) > int rc; >=20 > if (inode->i_default_acl) { > - rc =3D __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_DEFAULT, = inode->i_default_acl); > + rc =3D __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_DEFAULT, > + *acl_by_type(inode, = ACL_TYPE_DEFAULT)); > if (rc) > return rc; > } >=20 > if (inode->i_acl) { > - rc =3D __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_ACCESS, = inode->i_acl); > + rc =3D __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_ACCESS, > + *acl_by_type(inode, = ACL_TYPE_ACCESS)); > if (rc) > return rc; > } > diff --git a/fs/posix_acl.c b/fs/posix_acl.c > index 4fb17de..b3b2265 100644 > --- a/fs/posix_acl.c > +++ b/fs/posix_acl.c > @@ -25,9 +25,9 @@ struct posix_acl **acl_by_type(struct inode *inode, = int type) > { > switch (type) { > case ACL_TYPE_ACCESS: > - return &inode->i_acl; > + return (struct posix_acl **)&inode->i_acl; > case ACL_TYPE_DEFAULT: > - return &inode->i_default_acl; > + return (struct posix_acl **)&inode->i_default_acl; This would be better to use container_of() to unwrap struct base_acl = from struct posix_acl. That avoids the hard requirement (which isn't = documented anywhere) that base_acl needs to be the first member of struct = posix_acl. I was originally going to write that you should add a comment that = base_acl needs to be the first member of both richacl and posix_acl, but = container_of() is both cleaner and safer. Looking further down, that IS actually needed due to the way kfree is = used on the base_acl pointer, but using container_of() is still cleaner and = safer than directly casting double pointers (which some compilers and static analysis tools will be unhappy with). > default: > BUG(); > } > @@ -83,16 +83,16 @@ EXPORT_SYMBOL(forget_cached_acl); >=20 > void forget_all_cached_acls(struct inode *inode) > { > - struct posix_acl *old_access, *old_default; > + struct base_acl *old_access, *old_default; > spin_lock(&inode->i_lock); > old_access =3D inode->i_acl; > old_default =3D inode->i_default_acl; > inode->i_acl =3D inode->i_default_acl =3D ACL_NOT_CACHED; > spin_unlock(&inode->i_lock); > if (old_access !=3D ACL_NOT_CACHED) > - posix_acl_release(old_access); > + put_base_acl(old_access); > if (old_default !=3D ACL_NOT_CACHED) > - posix_acl_release(old_default); > + put_base_acl(old_default); > } > EXPORT_SYMBOL(forget_all_cached_acls); >=20 > @@ -129,7 +129,7 @@ EXPORT_SYMBOL(get_acl); > void > posix_acl_init(struct posix_acl *acl, int count) > { > - atomic_set(&acl->a_refcount, 1); > + atomic_set(&acl->a_base.ba_refcount, 1); This should be base_acl_init(). > acl->a_count =3D count; > } > EXPORT_SYMBOL(posix_acl_init); > @@ -162,7 +162,7 @@ posix_acl_clone(const struct posix_acl *acl, gfp_t = flags) > sizeof(struct posix_acl_entry); > clone =3D kmemdup(acl, size, flags); > if (clone) > - atomic_set(&clone->a_refcount, 1); > + atomic_set(&clone->a_base.ba_refcount, 1); Also base_acl_init() or base_acl_reinit(). > } > return clone; > } > @@ -384,7 +384,7 @@ static int posix_acl_create_masq(struct posix_acl = *acl, umode_t *mode_p) > umode_t mode =3D *mode_p; > int not_equiv =3D 0; >=20 > - /* assert(atomic_read(acl->a_refcount) =3D=3D 1); */ > + /* assert(atomic_read(acl->a_base.ba_refcount) =3D=3D 1); */ base_acl_refcount(). > FOREACH_ACL_ENTRY(pa, acl, pe) { > switch(pa->e_tag) { > @@ -439,7 +439,7 @@ static int __posix_acl_chmod_masq(struct posix_acl = *acl, umode_t mode) > struct posix_acl_entry *group_obj =3D NULL, *mask_obj =3D NULL; > struct posix_acl_entry *pa, *pe; >=20 > - /* assert(atomic_read(acl->a_refcount) =3D=3D 1); */ > + /* assert(atomic_read(acl->a_base.ba_refcount) =3D=3D 1); */ ... > FOREACH_ACL_ENTRY(pa, acl, pe) { > switch(pa->e_tag) { > diff --git a/include/linux/fs.h b/include/linux/fs.h > index ba91a89..3c22c92 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -576,6 +576,12 @@ static inline void mapping_allow_writable(struct = address_space *mapping) > #define i_size_ordered_init(inode) do { } while (0) > #endif >=20 > +struct base_acl { > + union { > + atomic_t ba_refcount; > + struct rcu_head ba_rcu; > + }; > +}; > struct posix_acl; Is this forward declaration of struct posix_acl even needed anymore = after the change below? There shouldn't be references to the struct in the = common code anymore (at least not by the end of the patch series. > #define ACL_NOT_CACHED ((void *)(-1)) >=20 > @@ -595,9 +601,9 @@ struct inode { > kgid_t i_gid; > unsigned int i_flags; >=20 > -#ifdef CONFIG_FS_POSIX_ACL > - struct posix_acl *i_acl; > - struct posix_acl *i_default_acl; > +#if defined(CONFIG_FS_POSIX_ACL) > + struct base_acl *i_acl; > + struct base_acl *i_default_acl; > #endif >=20 > const struct inode_operations *i_op; > @@ -3059,4 +3065,17 @@ static inline bool dir_relax(struct inode = *inode) >=20 > extern bool path_noexec(const struct path *path); >=20 > +static inline struct base_acl *get_base_acl(struct base_acl *acl) > +{ > + if (acl) > + atomic_inc(&acl->ba_refcount); > + return acl; > +} > + > +static inline void put_base_acl(struct base_acl *acl) > +{ > + if (acl && atomic_dec_and_test(&acl->ba_refcount)) > + kfree_rcu(acl, ba_rcu); Hmm, using the base_acl pointer as the pointer to kfree means that the base_acl structure DOES need to be the first one in both struct = posix_acl and struct richacl, so that needs to be commented at each structure so it doesn't accidentally break in the future. > +} > + > #endif /* _LINUX_FS_H */ > diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h > index 3e96a6a..2c46441 100644 > --- a/include/linux/posix_acl.h > +++ b/include/linux/posix_acl.h > @@ -43,10 +43,7 @@ struct posix_acl_entry { > }; >=20 > struct posix_acl { > - union { > - atomic_t a_refcount; > - struct rcu_head a_rcu; > - }; > + struct base_acl a_base; struct base_acl a_base; /* must be first, see = base_acl_put() */ > unsigned int a_count; > struct posix_acl_entry a_entries[0]; > }; > @@ -61,8 +58,7 @@ struct posix_acl { > static inline struct posix_acl * > posix_acl_dup(struct posix_acl *acl) > { > - if (acl) > - atomic_inc(&acl->a_refcount); > + get_base_acl(&acl->a_base); > return acl; > } >=20 > @@ -72,8 +68,8 @@ posix_acl_dup(struct posix_acl *acl) > static inline void > posix_acl_release(struct posix_acl *acl) > { > - if (acl && atomic_dec_and_test(&acl->a_refcount)) > - kfree_rcu(acl, a_rcu); > + BUILD_BUG_ON(offsetof(struct posix_acl, a_base) !=3D 0); > + put_base_acl(&acl->a_base); > } >=20 >=20 > diff --git a/include/linux/richacl.h b/include/linux/richacl.h > index 1d9f5f7..2baef35 100644 > --- a/include/linux/richacl.h > +++ b/include/linux/richacl.h > @@ -57,7 +57,7 @@ static inline struct richacl * > richacl_get(struct richacl *acl) > { > if (acl) > - atomic_inc(&acl->a_refcount); > + atomic_inc(&acl->a_base.ba_refcount); > return acl; This should also use base_acl_get() for consistency. That said, where = is the call to base_acl_put() in the richacl code? Also, where is the change to struct richacl? It looks like this patch = would not be able to compile by itself. I was going to say that struct = richacl also needs a comment like struct posix_acl that struct base_acl needs to = be first. 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--b1_8e4d0992afbd6b24d443b3fa9c5a9a24-- From ross.zwisler@linux.intel.com Tue Nov 3 18:51:02 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 84D907FB2 for ; Tue, 3 Nov 2015 18:51:02 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 48A11304066 for ; Tue, 3 Nov 2015 16:50:59 -0800 (PST) X-ASG-Debug-ID: 1446598257-04bdf03f0408b30001-NocioJ Received: from mga11.intel.com ([192.55.52.93]) by cuda.sgi.com with ESMTP id PkPH1C40LLx20W1k for ; Tue, 03 Nov 2015 16:50:57 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.93 X-ASG-Whitelist: EmailCat (corporate) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP; 03 Nov 2015 16:50:58 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,240,1444719600"; d="scan'208";a="593551180" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.156]) by FMSMGA003.fm.intel.com with ESMTP; 03 Nov 2015 16:50:56 -0800 Date: Tue, 3 Nov 2015 17:50:56 -0700 From: Ross Zwisler To: Dave Chinner Cc: Dan Williams , Brian Foster , Ross Zwisler , Jan Kara , xfs@oss.sgi.com, linux-fsdevel , "linux-nvdimm@lists.01.org" Subject: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Message-ID: <20151104005056.GA24710@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Mail-Followup-To: Ross Zwisler , Dave Chinner , Dan Williams , Brian Foster , Jan Kara , xfs@oss.sgi.com, linux-fsdevel , "linux-nvdimm@lists.01.org" References: <1445225238-30413-1-git-send-email-david@fromorbit.com> <1445225238-30413-4-git-send-email-david@fromorbit.com> <20151029142950.GE11663@bfoster.bfoster> <20151029233756.GS19199@dastard> <20151030123657.GC54905@bfoster.bfoster> <20151102011433.GW19199@dastard> <20151102141509.GA29346@bfoster.bfoster> <20151102214424.GJ10656@dastard> <20151103050413.GB19199@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151103050413.GB19199@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: UNKNOWN[192.55.52.93] X-Barracuda-Start-Time: 1446598257 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Nov 03, 2015 at 04:04:13PM +1100, Dave Chinner wrote: > On Mon, Nov 02, 2015 at 07:53:27PM -0800, Dan Williams wrote: > > On Mon, Nov 2, 2015 at 1:44 PM, Dave Chinner wrote: <> > > > This comes back to the comments I made w.r.t. the pmem driver > > > implementation doing synchronous IO by immediately forcing CPU cache > > > flushes and barriers. it's obviously correct, but it looks like > > > there's going to be a major performance penalty associated with it. > > > This is why I recently suggested that a pmem driver that doesn't do > > > CPU cache writeback during IO but does it on REQ_FLUSH is an > > > architecture we'll likely have to support. > > > > > > > The only thing we can realistically delay is wmb_pmem() i.e. the final > > sync waiting for data that has *left* the cpu cache. Unless/until we > > get a architecturally guaranteed method to write-back the entire > > cache, or flush the cache by physical-cache-way we're stuck with > > either non-temporal cycles or looping on potentially huge virtual > > address ranges. > > I'm missing something: why won't flushing the address range returned > by bdev_direct_access() during a fsync operation work? i.e. we're > working with exactly the same address as dax_clear_blocks() and > dax_do_io() use, so why can't we look up that address and flush it > from fsync? I could be wrong, but I don't see a reason why DAX can't use the strategy of writing data and marking it dirty in one step and then flushing later in response to fsync/msync. I think this could be used everywhere we write or zero data - dax_clear_blocks(), dax_io() etc. (I believe that lots of the block zeroing code will go away once we have the XFS and ext4 patches in that guarantee we will only get written and zeroed extents from the filesystem in response to get_block().) I think the PMEM driver, lacking the ability to mark things as dirty in the radix tree, etc, will need to keep doing things synchronously. Hmm...if we go this path, though, is that an argument against moving the zeroing from DAX down into the driver? True, with BRD it makes things nice and efficient because you can zero and never flush, and the driver knows there's nothing else to do. For PMEM, though, you lose the ability to zero the data and then queue the flushing for later, as you would be able to do if you left the zeroing code in DAX. The benefit of this is that if you are going to immediately re-write the newly zeroed data (which seems common), PMEM will end up doing an extra cache flush of the zeroes, only to have them overwritten and marked as dirty by DAX. If we leave the zeroing to DAX we can mark it dirty once, zero it once, write it once, and flush it once. This would make us lose the ability to do hardware-assisted flushing in the future that requires driver specific knowledge, though I don't think that exists yet. Perhaps we should leave the zeroing in DAX for now to take advantage of the single flush, and then move it down if a driver can improve performance with hardware assisted PMEM zeroing? From dan.j.williams@intel.com Tue Nov 3 19:02:42 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E9A277FB4 for ; Tue, 3 Nov 2015 19:02:42 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id C9760304053 for ; Tue, 3 Nov 2015 17:02:39 -0800 (PST) X-ASG-Debug-ID: 1446598954-04cbb0242508f40001-NocioJ Received: from mail-wm0-f46.google.com (mail-wm0-f46.google.com [74.125.82.46]) by cuda.sgi.com with ESMTP id igRlfVOAjaWDUFdc (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 03 Nov 2015 17:02:35 -0800 (PST) X-Barracuda-Envelope-From: dan.j.williams@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.46 Received: by wmll128 with SMTP id l128so101639333wml.0 for ; 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Tue, 03 Nov 2015 17:02:34 -0800 (PST) Received: by 10.27.88.132 with HTTP; Tue, 3 Nov 2015 17:02:34 -0800 (PST) In-Reply-To: <20151104005056.GA24710@linux.intel.com> References: <1445225238-30413-1-git-send-email-david@fromorbit.com> <1445225238-30413-4-git-send-email-david@fromorbit.com> <20151029142950.GE11663@bfoster.bfoster> <20151029233756.GS19199@dastard> <20151030123657.GC54905@bfoster.bfoster> <20151102011433.GW19199@dastard> <20151102141509.GA29346@bfoster.bfoster> <20151102214424.GJ10656@dastard> <20151103050413.GB19199@dastard> <20151104005056.GA24710@linux.intel.com> Date: Tue, 3 Nov 2015 17:02:34 -0800 Message-ID: Subject: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX From: Dan Williams X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX To: Ross Zwisler , Dave Chinner , Dan Williams , Brian Foster , Jan Kara , xfs@oss.sgi.com, linux-fsdevel , "linux-nvdimm@lists.01.org" Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f46.google.com[74.125.82.46] X-Barracuda-Start-Time: 1446598955 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24088 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Tue, Nov 3, 2015 at 4:50 PM, Ross Zwisler wrote: > On Tue, Nov 03, 2015 at 04:04:13PM +1100, Dave Chinner wrote: >> On Mon, Nov 02, 2015 at 07:53:27PM -0800, Dan Williams wrote: >> > On Mon, Nov 2, 2015 at 1:44 PM, Dave Chinner wrote: > <> >> > > This comes back to the comments I made w.r.t. the pmem driver >> > > implementation doing synchronous IO by immediately forcing CPU cache >> > > flushes and barriers. it's obviously correct, but it looks like >> > > there's going to be a major performance penalty associated with it. >> > > This is why I recently suggested that a pmem driver that doesn't do >> > > CPU cache writeback during IO but does it on REQ_FLUSH is an >> > > architecture we'll likely have to support. >> > > >> > >> > The only thing we can realistically delay is wmb_pmem() i.e. the final >> > sync waiting for data that has *left* the cpu cache. Unless/until we >> > get a architecturally guaranteed method to write-back the entire >> > cache, or flush the cache by physical-cache-way we're stuck with >> > either non-temporal cycles or looping on potentially huge virtual >> > address ranges. >> >> I'm missing something: why won't flushing the address range returned >> by bdev_direct_access() during a fsync operation work? i.e. we're >> working with exactly the same address as dax_clear_blocks() and >> dax_do_io() use, so why can't we look up that address and flush it >> from fsync? > > I could be wrong, but I don't see a reason why DAX can't use the strategy of > writing data and marking it dirty in one step and then flushing later in > response to fsync/msync. I think this could be used everywhere we write or > zero data - dax_clear_blocks(), dax_io() etc. (I believe that lots of the > block zeroing code will go away once we have the XFS and ext4 patches in that > guarantee we will only get written and zeroed extents from the filesystem in > response to get_block().) I think the PMEM driver, lacking the ability to > mark things as dirty in the radix tree, etc, will need to keep doing things > synchronously. Not without numbers showing the relative performance of dirtying cache followed by flushing vs non-temporal + pcommit. > Hmm...if we go this path, though, is that an argument against moving the > zeroing from DAX down into the driver? True, with BRD it makes things nice > and efficient because you can zero and never flush, and the driver knows > there's nothing else to do. > > For PMEM, though, you lose the ability to zero the data and then queue the > flushing for later, as you would be able to do if you left the zeroing code in > DAX. The benefit of this is that if you are going to immediately re-write the > newly zeroed data (which seems common), PMEM will end up doing an extra cache > flush of the zeroes, only to have them overwritten and marked as dirty by DAX. > If we leave the zeroing to DAX we can mark it dirty once, zero it once, write > it once, and flush it once. Why do we lose the ability to flush later if the driver supports blkdev_issue_zeroout? > This would make us lose the ability to do hardware-assisted flushing in the > future that requires driver specific knowledge, though I don't think that > exists yet. ioatdma has supported memset() for a while now, but I would prioritize a non-temporal SIMD implementation first. > Perhaps we should leave the zeroing in DAX for now to take > advantage of the single flush, and then move it down if a driver can improve > performance with hardware assisted PMEM zeroing? Not convinced. I think we should implement the driver zeroing solution and take a look at performance. 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[96.51.76.157]) by smtp.gmail.com with ESMTPSA id e13sm1644641pat.11.2015.11.03.18.03.08 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 03 Nov 2015 18:03:30 -0800 (PST) Subject: Re: [PATCH v13 12/51] vfs: Cache richacl in struct inode X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v13 12/51] vfs: Cache richacl in struct inode Content-Type: multipart/signed; boundary="Apple-Mail=_474FF3DA-AE9A-4839-BD4D-6C5C84BF4FC5"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446563847-14005-13-git-send-email-agruenba@redhat.com> Date: Tue, 3 Nov 2015 19:03:00 -0700 Cc: Alexander Viro , Theodore Ts'o , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Message-Id: <713E53A4-D073-4745-B57D-77AD07E89957@dilger.ca> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-13-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f47.google.com[209.85.220.47] X-Barracuda-Start-Time: 1446602611 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24091 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_474FF3DA-AE9A-4839-BD4D-6C5C84BF4FC5 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Nov 3, 2015, at 8:16 AM, Andreas Gruenbacher = wrote: >=20 > Cache richacls in struct inode so that this doesn't have to be done > individually in each filesystem. This is similar to POSIX ACLs. >=20 > Signed-off-by: Andreas Gruenbacher > --- > fs/inode.c | 11 ++++++-- > fs/posix_acl.c | 2 +- > fs/richacl_base.c | 4 +-- > fs/richacl_inode.c | 75 = +++++++++++++++++++++++++++++++++++++++++++++++++ > include/linux/fs.h | 5 +++- > include/linux/richacl.h | 15 ++++++---- > 6 files changed, 100 insertions(+), 12 deletions(-) >=20 > diff --git a/fs/inode.c b/fs/inode.c > index 2a387f4..8462ddb 100644 > --- a/fs/inode.c > +++ b/fs/inode.c > @@ -174,8 +174,11 @@ int inode_init_always(struct super_block *sb, = struct inode *inode) > inode->i_private =3D NULL; > inode->i_mapping =3D mapping; > INIT_HLIST_HEAD(&inode->i_dentry); /* buggered by rcu = freeing */ > -#ifdef CONFIG_FS_POSIX_ACL > - inode->i_acl =3D inode->i_default_acl =3D ACL_NOT_CACHED; > +#if defined(CONFIG_FS_POSIX_ACL) || defined(CONFIG_FS_RICHACL) > + inode->i_acl =3D ACL_NOT_CACHED; > +# if defined(CONFIG_FS_POSIX_ACL) > + inode->i_default_acl =3D ACL_NOT_CACHED; > +# endif > #endif >=20 > #ifdef CONFIG_FSNOTIFY > @@ -231,11 +234,13 @@ void __destroy_inode(struct inode *inode) > atomic_long_dec(&inode->i_sb->s_remove_count); > } >=20 > -#ifdef CONFIG_FS_POSIX_ACL > +#if defined(CONFIG_FS_POSIX_ACL) || defined(CONFIG_FS_RICHACL) > if (inode->i_acl && inode->i_acl !=3D ACL_NOT_CACHED) > put_base_acl(inode->i_acl); > +# if defined(CONFIG_FS_POSIX_ACL) > if (inode->i_default_acl && inode->i_default_acl !=3D = ACL_NOT_CACHED) > put_base_acl(inode->i_default_acl); > +# endif > #endif > this_cpu_dec(nr_inodes); > } > diff --git a/fs/posix_acl.c b/fs/posix_acl.c > index b3b2265..1d766a5 100644 > --- a/fs/posix_acl.c > +++ b/fs/posix_acl.c > @@ -38,7 +38,7 @@ struct posix_acl *get_cached_acl(struct inode = *inode, int type) > { > struct posix_acl **p =3D acl_by_type(inode, type); > struct posix_acl *acl =3D ACCESS_ONCE(*p); > - if (acl) { > + if (acl && IS_POSIXACL(inode)) { > spin_lock(&inode->i_lock); > acl =3D *p; > if (acl !=3D ACL_NOT_CACHED) > diff --git a/fs/richacl_base.c b/fs/richacl_base.c > index 69b806c..d0ab5e9 100644 > --- a/fs/richacl_base.c > +++ b/fs/richacl_base.c > @@ -33,7 +33,7 @@ richacl_alloc(int count, gfp_t gfp) > struct richacl *acl =3D kzalloc(size, gfp); >=20 > if (acl) { > - atomic_set(&acl->a_refcount, 1); > + atomic_set(&acl->a_base.ba_refcount, 1); > acl->a_count =3D count; > } > return acl; > @@ -52,7 +52,7 @@ richacl_clone(const struct richacl *acl, gfp_t gfp) >=20 > if (dup) { > memcpy(dup, acl, size); > - atomic_set(&dup->a_refcount, 1); > + atomic_set(&dup->a_base.ba_refcount, 1); These two calls should be base_acl_init(). There isn't any point to = have an abstraction that is only used by the posix_acl* code and not the = richacl code, as it will just result in richacl breaking in the future if/when = the abstraction is changed. > } > return dup; > } > diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c > index 99b3c93..c41a6c4 100644 > --- a/fs/richacl_inode.c > +++ b/fs/richacl_inode.c > @@ -20,6 +20,81 @@ > #include > #include >=20 > +struct richacl *get_cached_richacl(struct inode *inode) > +{ > + struct richacl *acl; > + > + acl =3D (struct richacl *)ACCESS_ONCE(inode->i_acl); > + if (acl && IS_RICHACL(inode)) { > + spin_lock(&inode->i_lock); > + acl =3D (struct richacl *)inode->i_acl; > + if (acl !=3D ACL_NOT_CACHED) > + acl =3D richacl_get(acl); > + spin_unlock(&inode->i_lock); > + } > + return acl; > +} > +EXPORT_SYMBOL_GPL(get_cached_richacl); > + > +struct richacl *get_cached_richacl_rcu(struct inode *inode) > +{ > + return (struct richacl *)rcu_dereference(inode->i_acl); > +} > +EXPORT_SYMBOL_GPL(get_cached_richacl_rcu); > + > +void set_cached_richacl(struct inode *inode, struct richacl *acl) > +{ > + struct base_acl *old =3D NULL; > + > + spin_lock(&inode->i_lock); > + old =3D inode->i_acl; > + rcu_assign_pointer(inode->i_acl, &richacl_get(acl)->a_base); > + spin_unlock(&inode->i_lock); > + if (old !=3D ACL_NOT_CACHED) > + put_base_acl(old); > +} > +EXPORT_SYMBOL_GPL(set_cached_richacl); > + > +void forget_cached_richacl(struct inode *inode) > +{ > + struct base_acl *old =3D NULL; > + > + spin_lock(&inode->i_lock); > + old =3D inode->i_acl; > + inode->i_acl =3D ACL_NOT_CACHED; > + spin_unlock(&inode->i_lock); > + if (old !=3D ACL_NOT_CACHED) > + put_base_acl(old); > +} > +EXPORT_SYMBOL_GPL(forget_cached_richacl); > + > +struct richacl *get_richacl(struct inode *inode) > +{ > + struct richacl *acl; > + > + acl =3D get_cached_richacl(inode); > + if (acl !=3D ACL_NOT_CACHED) > + return acl; > + > + if (!IS_RICHACL(inode)) > + return NULL; > + > + /* > + * A filesystem can force a ACL callback by just never filling = the > + * ACL cache. But normally you'd fill the cache either at inode > + * instantiation time, or on the first ->get_richacl call. > + * > + * If the filesystem doesn't have a get_richacl() function at = all, > + * we'll just create the negative cache entry. > + */ > + if (!inode->i_op->get_richacl) { > + set_cached_richacl(inode, NULL); > + return NULL; > + } > + return inode->i_op->get_richacl(inode); > +} > +EXPORT_SYMBOL_GPL(get_richacl); > + > /** > * richacl_permission - richacl permission check algorithm > * @inode: inode to check > diff --git a/include/linux/fs.h b/include/linux/fs.h > index 08fde42..d91deef 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -583,6 +583,7 @@ struct base_acl { > }; > }; > struct posix_acl; > +struct richacl; > #define ACL_NOT_CACHED ((void *)(-1)) >=20 > #define IOP_FASTPERM 0x0001 > @@ -601,9 +602,11 @@ struct inode { > kgid_t i_gid; > unsigned int i_flags; >=20 > -#if defined(CONFIG_FS_POSIX_ACL) > +#if defined(CONFIG_FS_POSIX_ACL) || defined(CONFIG_FS_RICHACL) > struct base_acl *i_acl; > +# if defined(CONFIG_FS_POSIX_ACL) > struct base_acl *i_default_acl; > +# endif > #endif >=20 > const struct inode_operations *i_op; > diff --git a/include/linux/richacl.h b/include/linux/richacl.h > index 2baef35..de7d0d9 100644 > --- a/include/linux/richacl.h > +++ b/include/linux/richacl.h > @@ -31,7 +31,7 @@ struct richace { > }; >=20 > struct richacl { > - atomic_t a_refcount; > + struct base_acl a_base; > unsigned int a_owner_mask; > unsigned int a_group_mask; > unsigned int a_other_mask; This should be in the previous patch where this wrapper is introduced. > @@ -56,8 +56,7 @@ struct richacl { > static inline struct richacl * > richacl_get(struct richacl *acl) > { > - if (acl) > - atomic_inc(&acl->a_base.ba_refcount); > + get_base_acl(&acl->a_base); Same. > return acl; > } >=20 > @@ -67,10 +66,16 @@ richacl_get(struct richacl *acl) > static inline void > richacl_put(struct richacl *acl) > { > - if (acl && atomic_dec_and_test(&acl->a_refcount)) > - kfree(acl); > + BUILD_BUG_ON(offsetof(struct richacl, a_base) !=3D 0); > + put_base_acl(&acl->a_base); Same. > } >=20 > +extern struct richacl *get_cached_richacl(struct inode *); > +extern struct richacl *get_cached_richacl_rcu(struct inode *); > +extern void set_cached_richacl(struct inode *, struct richacl *); > +extern void forget_cached_richacl(struct inode *); > +extern struct richacl *get_richacl(struct inode *); > + > /** > * richace_is_owner - check if @ace is an OWNER@ entry > */ > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_474FF3DA-AE9A-4839-BD4D-6C5C84BF4FC5 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVjlnVXKl2rkXzB/gAQgEKA//RqcPKXSvCfn2MOB6U7GOLw0TgGhL/6Ov HZA/tBbA0rFB6+6faaPw0mHy6pkSQjqQsxzHubTXbKnh5PQBGx4ncvPNU8TrpJtJ wPJXlD6OOT4mi6SUitptMg/tBdrUC6wLO/LWFXZ6abAGn+D6mlueD16QFJx3eRuj JEDHAMH5RL6H8dWOIn3MVt3AuEOeiCcUKqL5OE1CLqgHmNKMsBETBPoCDnEv14gd ZES0SRl3q8Q0yZoUkiPIu7f/nRWSjqcUiv4ZNDhoeSlKgDkO0+Wuh5dKVhbdqCEE u6rf2/oDdlvte2dwD3uj6k6eZJsTmYqUHeqBUHc0X/a8ec8WwT6bxZhy+Dul8CC5 x/LOmZoVzIdXLgtI4yXr/BjnVD0UJWZeqv1ag8rpe2U66Jz006fmyD8RP6DHwWu1 TDwexZ3cZwNS0eb15Y2Q4KPM1TOgQruQDmWnvQgZTwpK2bYM0vew/F88xQ9S8iZu 1XToZpi9uADaGvqTEFW3fieAl8Zq4r+z/luEW1InsBKjpqwkb5MpvpaLxZ7u4/2L w0q1FDe02Eez46s3maz24VOK/XD+8jC1ylcBSvHEGjJ3wouyhrN8qsik9xYOGIMa 7ThoKPKr1IDTI+czAsPWDVIV+Koqi6uYt884kubYCrZ//RU4P+F/QU70Z7JYeXx4 nhgOtb1WssQ= =c/dU -----END PGP SIGNATURE----- --Apple-Mail=_474FF3DA-AE9A-4839-BD4D-6C5C84BF4FC5-- From adilger@dilger.ca Tue Nov 3 20:13:23 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C80757FB7 for ; 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[96.51.76.157]) by smtp.gmail.com with ESMTPSA id ve8sm31898683pbc.48.2015.11.03.18.13.14 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 03 Nov 2015 18:13:18 -0800 (PST) Subject: Re: [PATCH v13 20/51] ext4: Add richacl support X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v13 20/51] ext4: Add richacl support Content-Type: multipart/signed; boundary="Apple-Mail=_59126A52-FAF0-4DF2-B107-A9EE09A9B3C7"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446563847-14005-21-git-send-email-agruenba@redhat.com> Date: Tue, 3 Nov 2015 19:13:07 -0700 Cc: Alexander Viro , Theodore Ts'o , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API , "Aneesh Kumar K.V" Message-Id: <6A710DA3-0B03-4371-A1EB-7AF39F684EDC@dilger.ca> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-21-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f43.google.com[209.85.220.43] X-Barracuda-Start-Time: 1446603200 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24091 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_59126A52-FAF0-4DF2-B107-A9EE09A9B3C7 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Nov 3, 2015, at 8:16 AM, Andreas Gruenbacher = wrote: >=20 > From: "Aneesh Kumar K.V" >=20 > Support the richacl permission model in ext4. The richacls are stored > in "system.richacl" xattrs. Richacls need to be enabled by tune2fs or > at file system create time. Patch looks reasonable. One minor cleanup below that could be fixed = when the patch series is refreshed, and you can add: Reviewed-by: Andreas Dilger >=20 > Signed-off-by: Aneesh Kumar K.V > Signed-off-by: Andreas Gruenbacher > --- > fs/ext4/Kconfig | 11 +++++ > fs/ext4/Makefile | 1 + > fs/ext4/file.c | 3 ++ > fs/ext4/ialloc.c | 11 ++++- > fs/ext4/inode.c | 12 ++++- > fs/ext4/namei.c | 5 ++ > fs/ext4/richacl.c | 141 = ++++++++++++++++++++++++++++++++++++++++++++++++++++++ > fs/ext4/richacl.h | 40 ++++++++++++++++ > fs/ext4/xattr.c | 7 +++ > 9 files changed, 228 insertions(+), 3 deletions(-) > create mode 100644 fs/ext4/richacl.c > create mode 100644 fs/ext4/richacl.h >=20 > diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig > index b46e9fc..65c5230 100644 > --- a/fs/ext4/Kconfig > +++ b/fs/ext4/Kconfig > @@ -22,6 +22,17 @@ config EXT3_FS_POSIX_ACL > This config option is here only for backward compatibility. = ext3 > filesystem is now handled by the ext4 driver. >=20 > +config EXT4_FS_RICHACL > + bool "Ext4 Rich Access Control Lists (EXPERIMENTAL)" > + depends on EXT4_FS > + select FS_RICHACL > + help > + Richacls are an implementation of NFSv4 ACLs, extended by file = masks > + to cleanly integrate into the POSIX file permission model. To = learn > + more about them, see http://www.bestbits.at/richacl/. > + > + If you don't know what Richacls are, say N. > + > config EXT3_FS_SECURITY > bool "Ext3 Security Labels" > depends on EXT3_FS > diff --git a/fs/ext4/Makefile b/fs/ext4/Makefile > index 75285ea..ea0d539 100644 > --- a/fs/ext4/Makefile > +++ b/fs/ext4/Makefile > @@ -14,3 +14,4 @@ ext4-$(CONFIG_EXT4_FS_POSIX_ACL) +=3D acl.o > ext4-$(CONFIG_EXT4_FS_SECURITY) +=3D xattr_security.o > ext4-$(CONFIG_EXT4_FS_ENCRYPTION) +=3D crypto_policy.o crypto.o \ > crypto_key.o crypto_fname.o > +ext4-$(CONFIG_EXT4_FS_RICHACL) +=3D richacl.o > diff --git a/fs/ext4/file.c b/fs/ext4/file.c > index 113837e..a03b4a5 100644 > --- a/fs/ext4/file.c > +++ b/fs/ext4/file.c > @@ -30,6 +30,7 @@ > #include "ext4_jbd2.h" > #include "xattr.h" > #include "acl.h" > +#include "richacl.h" >=20 > /* > * Called when an inode is released. Note that this is different > @@ -719,6 +720,8 @@ const struct inode_operations = ext4_file_inode_operations =3D { > .removexattr =3D generic_removexattr, > .get_acl =3D ext4_get_acl, > .set_acl =3D ext4_set_acl, > + .get_richacl =3D ext4_get_richacl, > + .set_richacl =3D ext4_set_richacl, > .fiemap =3D ext4_fiemap, > }; >=20 > diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c > index 619bfc1..9657b3a 100644 > --- a/fs/ext4/ialloc.c > +++ b/fs/ext4/ialloc.c > @@ -27,6 +27,7 @@ > #include "ext4_jbd2.h" > #include "xattr.h" > #include "acl.h" > +#include "richacl.h" >=20 > #include >=20 > @@ -697,6 +698,14 @@ out: > return ret; > } >=20 > +static inline int > +ext4_new_acl(handle_t *handle, struct inode *inode, struct inode = *dir) > +{ > + if (IS_RICHACL(dir)) > + return ext4_init_richacl(handle, inode, dir); > + return ext4_init_acl(handle, inode, dir); > +} > + > /* > * There are two policies for allocating an inode. If the new inode = is > * a directory, then a forward search is made for a block group with = both > @@ -1052,7 +1061,7 @@ got: > if (err) > goto fail_drop; >=20 > - err =3D ext4_init_acl(handle, inode, dir); > + err =3D ext4_new_acl(handle, inode, dir); > if (err) > goto fail_free_drop; >=20 > diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c > index 612fbcf..647f3c3 100644 > --- a/fs/ext4/inode.c > +++ b/fs/ext4/inode.c > @@ -42,6 +42,7 @@ > #include "xattr.h" > #include "acl.h" > #include "truncate.h" > +#include "richacl.h" >=20 > #include >=20 > @@ -4638,6 +4639,14 @@ static void = ext4_wait_for_tail_page_commit(struct inode *inode) > } > } >=20 > +static inline int > +ext4_acl_chmod(struct inode *inode, umode_t mode) > +{ > + if (IS_RICHACL(inode)) > + return richacl_chmod(inode, inode->i_mode); > + return posix_acl_chmod(inode, inode->i_mode); > +} > + > /* > * ext4_setattr() > * > @@ -4806,8 +4815,7 @@ int ext4_setattr(struct dentry *dentry, struct = iattr *attr) > ext4_orphan_del(NULL, inode); >=20 > if (!rc && (ia_valid & ATTR_MODE)) > - rc =3D posix_acl_chmod(inode, inode->i_mode); > - > + rc =3D ext4_acl_chmod(inode, inode->i_mode); > err_out: > ext4_std_error(inode->i_sb, error); > if (!error) > diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c > index 9f61e76..9b6e8b9 100644 > --- a/fs/ext4/namei.c > +++ b/fs/ext4/namei.c > @@ -38,6 +38,7 @@ >=20 > #include "xattr.h" > #include "acl.h" > +#include "richacl.h" >=20 > #include > /* > @@ -3854,6 +3855,8 @@ const struct inode_operations = ext4_dir_inode_operations =3D { > .removexattr =3D generic_removexattr, > .get_acl =3D ext4_get_acl, > .set_acl =3D ext4_set_acl, > + .get_richacl =3D ext4_get_richacl, > + .set_richacl =3D ext4_set_richacl, > .fiemap =3D ext4_fiemap, > }; >=20 > @@ -3865,4 +3868,6 @@ const struct inode_operations = ext4_special_inode_operations =3D { > .removexattr =3D generic_removexattr, > .get_acl =3D ext4_get_acl, > .set_acl =3D ext4_set_acl, > + .get_richacl =3D ext4_get_richacl, > + .set_richacl =3D ext4_set_richacl, > }; > diff --git a/fs/ext4/richacl.c b/fs/ext4/richacl.c > new file mode 100644 > index 0000000..906d048 > --- /dev/null > +++ b/fs/ext4/richacl.c > @@ -0,0 +1,141 @@ > +/* > + * Copyright IBM Corporation, 2010 > + * Copyright (C) 2015 Red Hat, Inc. > + * Author: Aneesh Kumar K.V , > + * Andreas Gruenbacher > + * > + * This program is free software; you can redistribute it and/or = modify it > + * under the terms of version 2.1 of the GNU Lesser General Public = License > + * as published by the Free Software Foundation. > + * > + * This program is distributed in the hope that it would be useful, = but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. > + * > + */ > + > +#include > +#include > +#include > + > +#include "ext4.h" > +#include "ext4_jbd2.h" > +#include "xattr.h" > +#include "acl.h" > +#include "richacl.h" > + > +struct richacl * > +ext4_get_richacl(struct inode *inode) > +{ > + const int name_index =3D EXT4_XATTR_INDEX_RICHACL; > + void *value =3D NULL; > + struct richacl *acl =3D NULL; > + int retval; > + > + retval =3D ext4_xattr_get(inode, name_index, "", NULL, 0); > + if (retval > 0) { > + value =3D kmalloc(retval, GFP_NOFS); > + if (!value) > + return ERR_PTR(-ENOMEM); > + retval =3D ext4_xattr_get(inode, name_index, "", value, = retval); > + } > + if (retval > 0) { > + acl =3D richacl_from_xattr(&init_user_ns, value, = retval); > + if (acl =3D=3D ERR_PTR(-EINVAL)) > + acl =3D ERR_PTR(-EIO); > + } else if (retval !=3D -ENODATA && retval !=3D -ENOSYS) > + acl =3D ERR_PTR(retval); (style) Typically, the braces on if/else blocks are kept matching. > + kfree(value); > + > + if (!IS_ERR(acl)) > + set_cached_richacl(inode, acl); > + > + return acl; > +} > + > +static int > +__ext4_remove_richacl(handle_t *handle, struct inode *inode) > +{ > + const int name_index =3D EXT4_XATTR_INDEX_RICHACL; > + int retval; > + > + retval =3D ext4_xattr_set_handle(handle, inode, name_index, "", > + NULL, 0, 0); > + if (!retval) > + set_cached_richacl(inode, NULL); > + return retval; > +} > + > +static int > +__ext4_set_richacl(handle_t *handle, struct inode *inode, struct = richacl *acl) > +{ > + const int name_index =3D EXT4_XATTR_INDEX_RICHACL; > + umode_t mode =3D inode->i_mode; > + int retval, size; > + void *value; > + > + if (richacl_equiv_mode(acl, &mode) =3D=3D 0) { > + inode->i_ctime =3D ext4_current_time(inode); > + inode->i_mode =3D mode; > + ext4_mark_inode_dirty(handle, inode); > + return __ext4_remove_richacl(handle, inode); > + } > + > + mode &=3D ~S_IRWXUGO; > + mode |=3D richacl_masks_to_mode(acl); > + > + size =3D richacl_xattr_size(acl); > + value =3D kmalloc(size, GFP_NOFS); > + if (!value) > + return -ENOMEM; > + richacl_to_xattr(&init_user_ns, acl, value, size); > + inode->i_mode =3D mode; > + retval =3D ext4_xattr_set_handle(handle, inode, name_index, "", > + value, size, 0); > + kfree(value); > + if (retval) > + return retval; > + > + set_cached_richacl(inode, acl); > + > + return 0; > +} > + > +int > +ext4_set_richacl(struct inode *inode, struct richacl *acl) > +{ > + handle_t *handle; > + int retval, retries =3D 0; > + > +retry: > + handle =3D ext4_journal_start(inode, EXT4_HT_XATTR, > + ext4_jbd2_credits_xattr(inode)); > + if (IS_ERR(handle)) > + return PTR_ERR(handle); > + > + if (acl) > + retval =3D __ext4_set_richacl(handle, inode, acl); > + else > + retval =3D __ext4_remove_richacl(handle, inode); > + > + ext4_journal_stop(handle); > + if (retval =3D=3D -ENOSPC && = ext4_should_retry_alloc(inode->i_sb, &retries)) > + goto retry; > + return retval; > +} > + > +int > +ext4_init_richacl(handle_t *handle, struct inode *inode, struct inode = *dir) > +{ > + struct richacl *acl =3D richacl_create(&inode->i_mode, dir); > + int error; > + > + error =3D PTR_ERR(acl); > + if (IS_ERR(acl)) > + return error; > + if (acl) { > + error =3D __ext4_set_richacl(handle, inode, acl); > + richacl_put(acl); > + } > + return error; > +} > diff --git a/fs/ext4/richacl.h b/fs/ext4/richacl.h > new file mode 100644 > index 0000000..6fe9a92 > --- /dev/null > +++ b/fs/ext4/richacl.h > @@ -0,0 +1,40 @@ > +/* > + * Copyright IBM Corporation, 2010 > + * Copyright (C) 2015 Red Hat, Inc. > + * Author Aneesh Kumar K.V > + * > + * This program is free software; you can redistribute it and/or = modify it > + * under the terms of version 2.1 of the GNU Lesser General Public = License > + * as published by the Free Software Foundation. > + * > + * This program is distributed in the hope that it would be useful, = but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. > + * > + */ > + > +#ifndef __FS_EXT4_RICHACL_H > +#define __FS_EXT4_RICHACL_H > + > +#include > + > +#ifdef CONFIG_EXT4_FS_RICHACL > + > +extern struct richacl *ext4_get_richacl(struct inode *); > +extern int ext4_set_richacl(struct inode *, struct richacl *); > + > +extern int ext4_init_richacl(handle_t *, struct inode *, struct inode = *); > + > +#else /* CONFIG_EXT4_FS_RICHACL */ > + > +#define ext4_get_richacl NULL > +#define ext4_set_richacl NULL > + > +static inline int > +ext4_init_richacl(handle_t *handle, struct inode *inode, struct inode = *dir) > +{ > + return 0; > +} > + > +#endif /* CONFIG_EXT4_FS_RICHACL */ > +#endif /* __FS_EXT4_RICHACL_H */ > diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c > index 16e28c0..4d79adb 100644 > --- a/fs/ext4/xattr.c > +++ b/fs/ext4/xattr.c > @@ -55,6 +55,7 @@ > #include > #include > #include > +#include > #include "ext4_jbd2.h" > #include "ext4.h" > #include "xattr.h" > @@ -99,6 +100,9 @@ static const struct xattr_handler = *ext4_xattr_handler_map[] =3D { > #ifdef CONFIG_EXT4_FS_SECURITY > [EXT4_XATTR_INDEX_SECURITY] =3D = &ext4_xattr_security_handler, > #endif > +#ifdef CONFIG_EXT4_FS_RICHACL > + [EXT4_XATTR_INDEX_RICHACL] =3D &richacl_xattr_handler, > +#endif > }; >=20 > const struct xattr_handler *ext4_xattr_handlers[] =3D { > @@ -111,6 +115,9 @@ const struct xattr_handler *ext4_xattr_handlers[] = =3D { > #ifdef CONFIG_EXT4_FS_SECURITY > &ext4_xattr_security_handler, > #endif > +#ifdef CONFIG_EXT4_FS_RICHACL > + &richacl_xattr_handler, > +#endif > NULL > }; >=20 > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_59126A52-FAF0-4DF2-B107-A9EE09A9B3C7 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVjlptHKl2rkXzB/gAQgjChAAkKzLoa4Jxvskyv0w9logUqsDIjZpujRv iH6EM3NEMZ5WWDESmwJHdJJ8iC3hThdex6borwxYKs3WPIXQYp1USHu3F5f/nl3x +wpmGjSetBnde/Mg4V7FUXI4Q+ClWyOn+Q55eHQ6xrDyT+9pEDr9Iy9mSnZPLKzL KBl/s/dOdhfdYyAcjMCLkFXBKeBrMgxvD5VyIbX1/uYQglLEwIVkwvgfAS2zKaSO Sfb8qzYykd8VaLdAPEHCeT0MgaRrCfBqDGPe29pAfm5YNkFpSQcckHwkrx6H1Bkc b4wO41mNejOZrkYdNF/5wiQWhSYuBwkL/v0MmanP0S/l/ilHrgDYZ+cFS9hSMY7K 35wbbWiq72QbAq0eEOH7f34UcBGTYdi4alrML0cDcSDyOJVgWMFulyVYvCx2Mb5S IY/WWTK9PnWdpbt168KZahtbrvhF7ds97/8wZ8cj8gcD9kWUsCuzZVGVEmqiHaAy Jp9cduKmhwxh8JXAlpi0sHJ0Ybf+W022zlDeAVJW4lKNdhsehyIJh1ZJU4yRVnyz 4FE1aCC4eQBZhTi4BAppco2lo+RLRmQa7H8od4fjzcJNYDFqiU8YbXJlgaDZ2BYu obw9NBUpIOQLPClZPWfkW95zueQzeVf+1cPYu8Q7jNP5cVphT/dAq6h/jbg9DmWS 8LYQyQqr3NE= =egkX -----END PGP SIGNATURE----- --Apple-Mail=_59126A52-FAF0-4DF2-B107-A9EE09A9B3C7-- From adilger@dilger.ca Tue Nov 3 20:18:36 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 29CEB7FB7 for ; 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[96.51.76.157]) by smtp.gmail.com with ESMTPSA id ey17sm32021212pac.26.2015.11.03.18.18.23 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 03 Nov 2015 18:18:26 -0800 (PST) Subject: Re: [PATCH v13 21/51] ext4: Add richacl feature flag X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v13 21/51] ext4: Add richacl feature flag Content-Type: multipart/signed; boundary="Apple-Mail=_CCEA3C87-F09E-4ABD-A2B3-E40C5E9468A2"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446563847-14005-22-git-send-email-agruenba@redhat.com> Date: Tue, 3 Nov 2015 19:18:19 -0700 Cc: Alexander Viro , Theodore Ts'o , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org, "Aneesh Kumar K.V" Message-Id: <06282344-726E-49AD-936B-7BFF8F43B967@dilger.ca> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-22-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f52.google.com[209.85.220.52] X-Barracuda-Start-Time: 1446603508 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24091 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_CCEA3C87-F09E-4ABD-A2B3-E40C5E9468A2 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On Nov 3, 2015, at 8:16 AM, Andreas Gruenbacher = wrote: >=20 > From: "Aneesh Kumar K.V" >=20 > This feature flag selects richacl instead of posix acl support on the > file system. In addition, the "acl" mount option is needed for = enabling > either of the two kinds of acls. This patch confuses me. I thought the whole point of INCOMPAT_RICHACL was that the filesystem should never, ever be mounted without ACL = support because the ACLs will get confused without it. In that case, it doesn't make sense to have a mount option that _has_ to be specified to mount = the filesystem, and returns an error when trying to disable it. It makes more sense to just enable "acl" by default if INCOMPAT_RICHACL is set in the superblock and not need the mount option at all. Having a mount option made more sense when enabling this support was = optional for the filesystem, and it could be mounted without it enabled, but you wanted INCOMPAT_RICHACL to prevent that so it needs to be fixed. Cheers, Andreas > Signed-off-by: Aneesh Kumar K.V > Signed-off-by: Andreas Gruenbacher > --- > fs/ext4/ext4.h | 6 ++++-- > fs/ext4/super.c | 49 ++++++++++++++++++++++++++++++++++++++++--------- > 2 files changed, 44 insertions(+), 11 deletions(-) >=20 > diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h > index fd1f28b..b97a3b1 100644 > --- a/fs/ext4/ext4.h > +++ b/fs/ext4/ext4.h > @@ -991,7 +991,7 @@ struct ext4_inode_info { > #define EXT4_MOUNT_UPDATE_JOURNAL 0x01000 /* Update the journal = format */ > #define EXT4_MOUNT_NO_UID32 0x02000 /* Disable 32-bit UIDs = */ > #define EXT4_MOUNT_XATTR_USER 0x04000 /* Extended user = attributes */ > -#define EXT4_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control = Lists */ > +#define EXT4_MOUNT_ACL 0x08000 /* Access = Control Lists */ > #define EXT4_MOUNT_NO_AUTO_DA_ALLOC 0x10000 /* No auto delalloc = mapping */ > #define EXT4_MOUNT_BARRIER 0x20000 /* Use block barriers */ > #define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set = */ > @@ -1582,6 +1582,7 @@ static inline int ext4_encrypted_inode(struct = inode *inode) > #define EXT4_FEATURE_INCOMPAT_LARGEDIR 0x4000 /* >2GB = or 3-lvl htree */ > #define EXT4_FEATURE_INCOMPAT_INLINE_DATA 0x8000 /* data in inode = */ > #define EXT4_FEATURE_INCOMPAT_ENCRYPT 0x10000 > +#define EXT4_FEATURE_INCOMPAT_RICHACL 0x20000 >=20 > #define EXT2_FEATURE_COMPAT_SUPP EXT4_FEATURE_COMPAT_EXT_ATTR > #define EXT2_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| = \ > @@ -1607,7 +1608,8 @@ static inline int ext4_encrypted_inode(struct = inode *inode) > EXT4_FEATURE_INCOMPAT_FLEX_BG| = \ > EXT4_FEATURE_INCOMPAT_MMP | \ > = EXT4_FEATURE_INCOMPAT_INLINE_DATA | \ > - EXT4_FEATURE_INCOMPAT_ENCRYPT) > + EXT4_FEATURE_INCOMPAT_ENCRYPT | = \ > + EXT4_FEATURE_INCOMPAT_RICHACL) > #define EXT4_FEATURE_RO_COMPAT_SUPP = (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \ > = EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \ > = EXT4_FEATURE_RO_COMPAT_GDT_CSUM| \ > diff --git a/fs/ext4/super.c b/fs/ext4/super.c > index a63c7b0..7457ea8 100644 > --- a/fs/ext4/super.c > +++ b/fs/ext4/super.c > @@ -1270,6 +1270,28 @@ static ext4_fsblk_t get_sb_block(void **data) > return sb_block; > } >=20 > +static int enable_acl(struct super_block *sb) > +{ > + sb->s_flags &=3D ~(MS_POSIXACL | MS_RICHACL); > + if (test_opt(sb, ACL)) { > + if (EXT4_HAS_INCOMPAT_FEATURE(sb, > + = EXT4_FEATURE_INCOMPAT_RICHACL)) { > +#ifdef CONFIG_EXT4_FS_RICHACL > + sb->s_flags |=3D MS_RICHACL; > +#else > + return -EOPNOTSUPP; > +#endif > + } else { > +#ifdef CONFIG_EXT4_FS_POSIX_ACL > + sb->s_flags |=3D MS_POSIXACL; > +#else > + return -EOPNOTSUPP; > +#endif > + } > + } > + return 0; > +} > + > #define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3)) > static char deprecated_msg[] =3D "Mount option \"%s\" will be removed = by %s\n" > "Contact linux-ext4@vger.kernel.org if you think we should keep = it.\n"; > @@ -1416,9 +1438,9 @@ static const struct mount_opts { > MOPT_NO_EXT2 | MOPT_DATAJ}, > {Opt_user_xattr, EXT4_MOUNT_XATTR_USER, MOPT_SET}, > {Opt_nouser_xattr, EXT4_MOUNT_XATTR_USER, MOPT_CLEAR}, > -#ifdef CONFIG_EXT4_FS_POSIX_ACL > - {Opt_acl, EXT4_MOUNT_POSIX_ACL, MOPT_SET}, > - {Opt_noacl, EXT4_MOUNT_POSIX_ACL, MOPT_CLEAR}, > +#if defined(CONFIG_EXT4_FS_POSIX_ACL) || = defined(CONFIG_EXT4_FS_RICHACL) > + {Opt_acl, EXT4_MOUNT_ACL, MOPT_SET}, > + {Opt_noacl, EXT4_MOUNT_ACL, MOPT_CLEAR}, > #else > {Opt_acl, 0, MOPT_NOSUPPORT}, > {Opt_noacl, 0, MOPT_NOSUPPORT}, > @@ -1466,6 +1488,13 @@ static int handle_mount_opt(struct super_block = *sb, char *opt, int token, > #endif > switch (token) { > case Opt_noacl: > +#ifdef CONFIG_EXT4_FS_RICHACL > + if (EXT4_HAS_INCOMPAT_FEATURE(sb, = EXT4_FEATURE_INCOMPAT_RICHACL)) { > + ext4_msg(sb, KERN_ERR, "Mount option \"%s\" incompatible = " > + "with richacl feature", opt); > + return -1; > + } > +#endif > case Opt_nouser_xattr: > ext4_msg(sb, KERN_WARNING, deprecated_msg, opt, "3.5"); > break; > @@ -3576,8 +3605,8 @@ static int ext4_fill_super(struct super_block = *sb, void *data, int silent) > set_opt(sb, NO_UID32); > /* xattr user namespace & acls are now defaulted on */ > set_opt(sb, XATTR_USER); > -#ifdef CONFIG_EXT4_FS_POSIX_ACL > - set_opt(sb, POSIX_ACL); > +#if defined(CONFIG_EXT4_FS_POSIX_ACL) || = defined(CONFIG_EXT4_FS_RICHACL) > + set_opt(sb, ACL); > #endif > /* don't forget to enable journal_csum when metadata_csum is = enabled. */ > if (ext4_has_metadata_csum(sb)) > @@ -3660,8 +3689,9 @@ static int ext4_fill_super(struct super_block = *sb, void *data, int silent) > sb->s_iflags |=3D SB_I_CGROUPWB; > } >=20 > - sb->s_flags =3D (sb->s_flags & ~MS_POSIXACL) | > - (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0); > + err =3D enable_acl(sb); > + if (err) > + goto failed_mount; >=20 > if (le32_to_cpu(es->s_rev_level) =3D=3D EXT4_GOOD_OLD_REV && > (EXT4_HAS_COMPAT_FEATURE(sb, ~0U) || > @@ -4981,8 +5011,9 @@ static int ext4_remount(struct super_block *sb, = int *flags, char *data) > if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED) > ext4_abort(sb, "Abort forced by user"); >=20 > - sb->s_flags =3D (sb->s_flags & ~MS_POSIXACL) | > - (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0); > + err =3D enable_acl(sb); > + if (err) > + goto restore_opts; >=20 > es =3D sbi->s_es; >=20 > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_CCEA3C87-F09E-4ABD-A2B3-E40C5E9468A2 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVjlq63Kl2rkXzB/gAQj04Q/+Lfxvp1SYlSbQtf89x2V4Ya5sstQ7wSzN 3V/z/36Se9CdpCUmuGaKElq+MI7thPE7mn0vnDCNgd89QhL1i+eoieJ0FCiSHXel G3axLsRMGW9RdUQz+bdMRdSMnU3Grm9MRH33uspPqWKelTpMAIyonXGQmofQSOA1 KrNDIaPFg2U4c8y58SZ8l1EwcNnFxCpnbx4VG6a+WeNmdpTyqFfjgDA2t9qNPDnO 9i0wfIYxpi85OJZtybba/t1aIXPALfxPKY03Rbvc2MnK5OKWFjxAXHo8LNMAzt3y 6+leREMQj0trSHBLxC0UoKfLqXcrxczLdXoG4XgygMqJqSEflEOiiedd71EJoxwg dbVDuKjqxH4g1Ios91FNLubhC+GhS/6R+mssTtIwpSDtevV1Ev52hIpXsWw5VpY/ oZ+/tNcjYwsmO7nSiVxvGx2wkMo50EfTCKfpyYLI19WAAnhXUDG0F5GU0jYzoDao JQV43yT/Zswl3PzgrY31sI21tnxtW8ke69pxdC64C1xr2zZ4HZRiWw6biPWvpPlk JzP0/Kw/NsLuNL5gmSiDupv72uZ5UynvLZiaGtNnWSKZadS5j8OX7d3XmC8qRPsX GoQJiZBAQxPrIq6ESzcKuGvvbngDeaUzOmmaSDgic1HxCDK4fUoNXQKd5GPIBJsX RekIQDAukCc= =KMZQ -----END PGP SIGNATURE----- --Apple-Mail=_CCEA3C87-F09E-4ABD-A2B3-E40C5E9468A2-- From agruenba@redhat.com Tue Nov 3 20:19:35 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 91F9B7FBB for ; Tue, 3 Nov 2015 20:19:35 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 73E51304059 for ; Tue, 3 Nov 2015 18:19:35 -0800 (PST) X-ASG-Debug-ID: 1446603572-04cbb024230aa40001-NocioJ Received: from mail-lb0-f177.google.com (mail-lb0-f177.google.com [209.85.217.177]) by cuda.sgi.com with ESMTP id dDKGAgDBvfT0WzH1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 03 Nov 2015 18:19:34 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.217.177 Received: by lbbec13 with SMTP id ec13so5800349lbb.0 for ; Tue, 03 Nov 2015 18:19:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=AIuEDZAbRn4B/F2Sh18ZRoCR7ULBjQb17/+9e5rvtO0=; b=EsDP+B5ejvykVdVMNh5LjHvl59jyiw2QdjVkLDlnJ8aD+t0Skplu+yev8SjAGbGIqv +UMC5hCJl+Jehjtu1CnLjjxdSslg3ePrBf//OmUzm5MzFJV/V1uX5MgBYV0JeMixldQO rjazML97ovDgXNGj5bibTuzVY3Qd6/M8hYoB4hNqiZDpNLPr57ilq8AHxGaPa/nNc7Ar jzKfTxLFSWlznmKKXY7KpGZOgBh00PShwrSICU+iZPeKIZ1lTEj8WXCQSPUrZjY1IcKO 9UMNCNnDqVIW4ACXJo9+1KLDGm9VjUEwV7BvHZc6Q632EiIFPNg/7VUqSqg2j2RyyrZ7 Kk1Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=AIuEDZAbRn4B/F2Sh18ZRoCR7ULBjQb17/+9e5rvtO0=; b=hDbRMHM/NE4XaL5iVls7zmyd1viSY/nkUEOghNuthhHXQ4Jw+8pFXCkdAV6GdUV2n6 L61oMeQAT9ECNEu2E9b5Az8FHcx2hX0+OlgPqxmsnkrd5qZKEekmqELyOgNUwy0uQyyr fFO93LZMh45DXS+Dk+KuCotVsqW0YeH003ftnkCX3wfw4Y5ouuTazmuCZr9joaw8NdzS 4twcUg9TlsiIaQC5jTcNYXd0cXkkk5ygYJrMvcp0x+BKkXwFMQl/jEzUbljE9pE0telT 30o5CHvg4P1UdkgrIa0h1RwA0sO4ggzU0OqrtPUf3Bi4XDLnHFwdW9y7Q3DRNX9AKd3U +x0w== X-Gm-Message-State: ALoCoQkMQDdq7mWUL5WniplmsZUjkUIiNIe6I57eNhwxbaZqxr7HU3hMRXbNr++M+TA9ii73xBul MIME-Version: 1.0 X-Received: by 10.112.151.106 with SMTP id up10mr10701572lbb.85.1446603572432; Tue, 03 Nov 2015 18:19:32 -0800 (PST) Received: by 10.112.53.42 with HTTP; Tue, 3 Nov 2015 18:19:32 -0800 (PST) In-Reply-To: <6A710DA3-0B03-4371-A1EB-7AF39F684EDC@dilger.ca> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-21-git-send-email-agruenba@redhat.com> <6A710DA3-0B03-4371-A1EB-7AF39F684EDC@dilger.ca> Date: Wed, 4 Nov 2015 03:19:32 +0100 Message-ID: Subject: Re: [PATCH v13 20/51] ext4: Add richacl support From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v13 20/51] ext4: Add richacl support To: Andreas Dilger Cc: Alexander Viro , "Theodore Ts'o" , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API , "Aneesh Kumar K.V" Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lb0-f177.google.com[209.85.217.177] X-Barracuda-Start-Time: 1446603573 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24091 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Wed, Nov 4, 2015 at 3:13 AM, Andreas Dilger wrote: > Patch looks reasonable. One minor cleanup below that could be fixed when > the patch series is refreshed, and you can add: > > Reviewed-by: Andreas Dilger Okay, thank you. Andreas From adilger@dilger.ca Tue Nov 3 20:21:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DD9067F69 for ; Tue, 3 Nov 2015 20:21:01 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id A52C0304051 for ; Tue, 3 Nov 2015 18:21:01 -0800 (PST) X-ASG-Debug-ID: 1446603660-04bdf03f040ae30001-NocioJ Received: from mail-pa0-f48.google.com (mail-pa0-f48.google.com [209.85.220.48]) by cuda.sgi.com with ESMTP id CL5LZWCA84v474yr (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 03 Nov 2015 18:21:00 -0800 (PST) X-Barracuda-Envelope-From: adilger@dilger.ca X-Barracuda-RBL-Trusted-Forwarder: 209.85.220.48 Received: by pabfh17 with SMTP id fh17so36577115pab.0 for ; Tue, 03 Nov 2015 18:21:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dilger_ca.20150623.gappssmtp.com; s=20150623; h=subject:mime-version:content-type:from:in-reply-to:date:cc :message-id:references:to; bh=cOF2i2lxBr5vH7S3ZDMTdu/0xBFpupR/Xs9y7gQrKxA=; b=ayD21kG8+NOtvPiP82T15d4v/qAy11EBtV3suFGIs/xRs87csuQkmAPZW8r23sSz1l HApk3otay7aPci77gm+K+qX85VnTAepIhvZQrEs8xlB0/7nQZreu9k+wnCCBDGNlnZhD Rx5heukrAha0B6wPbRohcB17lzf3kXghyMStRt6M6USCwm6kwnxSd+cTJGnpGmS8Q7st dkQ1zxpfjZpcNyVGtrKzj6GQnDMTHHAOO54CNuUT8PuAWZt0VpTZvsTAK/xXxXucGwpF 6pKSvBb0HjBiTwh2iK0NVjsEBjr5sv9RyEgQZru4Auc6nE8i0UR2HtRcPGqmedMATaqC bpFw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:mime-version:content-type:from :in-reply-to:date:cc:message-id:references:to; bh=cOF2i2lxBr5vH7S3ZDMTdu/0xBFpupR/Xs9y7gQrKxA=; b=MYASXnnFVsrB+KcNZrxcwN1M2DsG2OCsKACmkQS030EtZkBkXx7nC+ZpgFb9Qjedrs lf+Ka9iREpXEM+txtqlV5xJPNbPr2PUFM5lbFbN+esWdNM3TOu9uqToE9BMlD2IVgyN6 6hmSx5NJWZumjjrLxYPqrUCz48RGzazJEJ64vHKR2QQZPYsASfqApp72U3S29TMeKKWT OicERuMtOriqQn2TmmeQQ/8G5Ev64O4RNhaYQX4x651bJkex/MUKq0BCrLDbLwSJxxtI cvaDzzBMAylgHSYeQTBXKYz1BjGSbUlofzPgiA9EqZ+QRvelTJQabT6TyeHk1EXLz5VH JVpQ== X-Gm-Message-State: ALoCoQm1nAMs0KvFzKJNqIR7H7kJW6iAZ8tK5J80genEeLG+mKSyuVfkPwcY14GUljUPR2PScid0 X-Received: by 10.68.103.161 with SMTP id fx1mr37707563pbb.42.1446603659981; Tue, 03 Nov 2015 18:20:59 -0800 (PST) Received: from cabot-wlan.adilger.int (S0106002191d9348b.cg.shawcable.net. [96.51.76.157]) by smtp.gmail.com with ESMTPSA id nu5sm31897923pbb.65.2015.11.03.18.20.52 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 03 Nov 2015 18:20:59 -0800 (PST) Subject: Re: [PATCH v13 43/51] ext4: Don't allow unmapped identifiers in richacls X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v13 43/51] ext4: Don't allow unmapped identifiers in richacls Content-Type: multipart/signed; boundary="Apple-Mail=_951D32E2-636D-4F9D-890C-9450C7F0D2FA"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446563847-14005-44-git-send-email-agruenba@redhat.com> Date: Tue, 3 Nov 2015 19:20:46 -0700 Cc: Alexander Viro , Theodore Ts'o , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Message-Id: <6E00DAEB-506C-4D93-8131-D12D459D7919@dilger.ca> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-44-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f48.google.com[209.85.220.48] X-Barracuda-Start-Time: 1446603660 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24091 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_951D32E2-636D-4F9D-890C-9450C7F0D2FA Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On Nov 3, 2015, at 8:17 AM, Andreas Gruenbacher = wrote: >=20 > Don't allow acls which contain unmapped identifiers: they are = meaningful > for remote file systems only. Looks fine. Reviewed-by: Andreas Dilger > Signed-off-by: Andreas Gruenbacher > --- > fs/ext4/richacl.c | 4 ++++ > 1 file changed, 4 insertions(+) >=20 > diff --git a/fs/ext4/richacl.c b/fs/ext4/richacl.c > index 906d048..2115385 100644 > --- a/fs/ext4/richacl.c > +++ b/fs/ext4/richacl.c > @@ -74,6 +74,10 @@ __ext4_set_richacl(handle_t *handle, struct inode = *inode, struct richacl *acl) > int retval, size; > void *value; >=20 > + /* Don't allow acls with unmapped identifiers. */ > + if (richacl_has_unmapped_identifiers(acl)) > + return -EINVAL; > + > if (richacl_equiv_mode(acl, &mode) =3D=3D 0) { > inode->i_ctime =3D ext4_current_time(inode); > inode->i_mode =3D mode; > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_951D32E2-636D-4F9D-890C-9450C7F0D2FA Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVjlrf3Kl2rkXzB/gAQhIRhAAmFM6Z3Er7qv7heUk5sBoyGEDG2hJCU2M 6AM81ezeI9+BqJ3VHsNLivKEf4tDQLktfe8awj/hkJuBlSp2TT8ILjsr8qDJ+Zbb p4YwN9RG9VUMo3ncBD9UJmZdlv0cjTaEpnwVAAJBDLU//1Km0mLBxujQD6Pjr+/m aN4pxOjJBbApz9RneupgetsRu3H+Bm3II0grAL8DyjQJdPEZ/Vf7ZjDdcbfXXmLQ SMzBmOCs9xquwrgBwb7Ob1Yc+rVqotvQiwuelrl6ZAjbXGwz+nKVNSfxz9vZ+kIA EaevYOYOr4USHXPah3iw0fHNJjmiiLQ6RJPFfT/mjuNvahoC/Q/9O4prrFZq3lP2 s5KGEMEEtQgM6xVGABcY8sDumuZEKW1J/kK5aXSt09nkKmfw9aN2CkWcM5c4FZow 2bMFH6DT7tAnsu/bHcCfj1hbhxqOSDAPg4pjxxirFR+IAN64Wkuk/0KKsu/S2LwX hSmuJt4cKxmURIhMjHysmfnXc4kivMhc/YSKXXqRa0mfUw7+pUqMkzEUzdVIYrz0 qVbZBE6fNI+vZIdESJ3RO3PLw++JVsAfoPr+XXJDeNfy7FPCq+mzIZP+6uq8Q5iE p2Vgg0tafoyFHl88ttZFc2QksLdHHtEQ/A4NM2k6gZIiwbDpHiIgdtww5+/MQhrz /02xQ7FHhKM= =DK1q -----END PGP SIGNATURE----- --Apple-Mail=_951D32E2-636D-4F9D-890C-9450C7F0D2FA-- From agruenba@redhat.com Tue Nov 3 20:28:07 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id ABF5B7FB7 for ; Tue, 3 Nov 2015 20:28:07 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 248CFAC001 for ; Tue, 3 Nov 2015 18:28:07 -0800 (PST) X-ASG-Debug-ID: 1446604084-04cb6c296c0b4c0001-NocioJ Received: from mail-lb0-f179.google.com (mail-lb0-f179.google.com [209.85.217.179]) by cuda.sgi.com with ESMTP id 88WBnwZmPhskWlPV (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 03 Nov 2015 18:28:05 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.217.179 Received: by lbbkw15 with SMTP id kw15so46747lbb.0 for ; Tue, 03 Nov 2015 18:28:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=yLmTmPpmXwdczLAqThQLtFK3IdLdSXKlno6FZ3is5Og=; b=iSnTqYl7RpRFaKaB7NBqNB729af3BAw1XgMHDFZi3hQ8zy8I3YSWgYJ654D/5iDst3 WNGeurv67UnwaZJilS5OAgqzN41zkeHvGH2rUoa/jaXC4/VOoxbFGtq9q96FEMIpSJae GN04H3rqCisgB1WyHMjw37Fks86r98oWoAcv9lginYKqmrx29bLBbMOHZDlxrOq5X2JZ vtWeKjGTljnkrSRbD/rxYj7CIqFHNyJWia6FqF5PyCpPqceduPujLI+AqJAFf5xs9bGu /kgtn+PNJSpVTS+ryUOBwXO5AWN52v+sBo4tQUuuXGJmlYBBcyBMp0l9DhoPuzthaPza Hq8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=yLmTmPpmXwdczLAqThQLtFK3IdLdSXKlno6FZ3is5Og=; b=iv/Jhg9VCig4HyJJ+x57nlt5r0VF7yZaOBnhWLrtSHiKGZDgVM7b3VZ3JZecVuSKLC VldmT91IET6dnDi4AzWgy0MvZZD5t2KufSI2l268rapBJvJTqGKO6UCXUSEX/ibxkNq8 z51xh7q7kKVdqeOjhO6c/tW7LjDCKp5V+lnoCyHpQOP8aUROR8j7k+gR+SrLvoTLv8/M 45FgYzTZkAkd0N9x5LDgLKyOADxly8vQrcxOm7N8bdUwYIrLpUakZ7dtOlyE6gb5W4MU K/R4BT/Ah4/wcKa8/5gVQjYVm+iR9jOkxshe4cGPmWmC94E7L4HgHNMkYV7+XDhU8UBg BtHA== X-Gm-Message-State: ALoCoQlf0t+Rvgcs1cmmgfWx5sBr2MoqAWY8PRBLtuTu3KZyZ7ZM9WD4JTTOuanvFFbudJoWlNxK MIME-Version: 1.0 X-Received: by 10.112.170.201 with SMTP id ao9mr9413349lbc.104.1446604083777; Tue, 03 Nov 2015 18:28:03 -0800 (PST) Received: by 10.112.53.42 with HTTP; Tue, 3 Nov 2015 18:28:03 -0800 (PST) In-Reply-To: <06282344-726E-49AD-936B-7BFF8F43B967@dilger.ca> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-22-git-send-email-agruenba@redhat.com> <06282344-726E-49AD-936B-7BFF8F43B967@dilger.ca> Date: Wed, 4 Nov 2015 03:28:03 +0100 Message-ID: Subject: Re: [PATCH v13 21/51] ext4: Add richacl feature flag From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v13 21/51] ext4: Add richacl feature flag To: Andreas Dilger Cc: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API , "Aneesh Kumar K.V" Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lb0-f179.google.com[209.85.217.179] X-Barracuda-Start-Time: 1446604084 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24091 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Andreas, On Wed, Nov 4, 2015 at 3:18 AM, Andreas Dilger wrote: > This patch confuses me. I thought the whole point of INCOMPAT_RICHACL > was that the filesystem should never, ever be mounted without ACL support > because the ACLs will get confused without it. In that case, it doesn't > make sense to have a mount option that _has_ to be specified to mount the > filesystem, and returns an error when trying to disable it. > > It makes more sense to just enable "acl" by default if INCOMPAT_RICHACL > is set in the superblock and not need the mount option at all. It's the commit message that's misleading here, I'll fix it. On richacl filesystems, the acl mount option is always on. It's only on POSIX ACL filesystems that the mount option can be used to turn POSIX ACLs off (which arguably wasn't such a good idea, but there we have it). Thanks, Andreas From adilger@dilger.ca Tue Nov 3 20:33:13 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 62E5F7FC7 for ; Tue, 3 Nov 2015 20:33:13 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id C3562AC002 for ; Tue, 3 Nov 2015 18:33:12 -0800 (PST) X-ASG-Debug-ID: 1446604390-04cb6c296a0b640001-NocioJ Received: from mail-pa0-f51.google.com (mail-pa0-f51.google.com [209.85.220.51]) by cuda.sgi.com with ESMTP id LJcFqd7y1MHAKOHo (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 03 Nov 2015 18:33:10 -0800 (PST) X-Barracuda-Envelope-From: adilger@dilger.ca X-Barracuda-RBL-Trusted-Forwarder: 209.85.220.51 Received: by pabfh17 with SMTP id fh17so36909943pab.0 for ; Tue, 03 Nov 2015 18:33:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dilger_ca.20150623.gappssmtp.com; s=20150623; h=subject:mime-version:content-type:from:in-reply-to:date:cc :message-id:references:to; bh=OoT8vOo2EqSQIpZPZnCfIz/Of08VA/9hcdLbodd0r+w=; b=vZUgTS4ZnHxiJB7F7EC9v0hVJtae3Ybo3dtyLiqgzIXpVHH0sFMXN8E5OmkVjIv9vg OAzx4w8e9PjYpXTlD+mszv3ne+jY2PJwNYOZwWYJGVYbD2IWJn1yH8Q7TF4+aVINKsO5 pmjh3TSRcnF55Y3WRqYyVUMroXUzT4boCiNG5e3cCKJOI5ONkosoRZv3Fh4jjulpoWhG yuSj5F8ZSeQjlBJPSEcCYdGt3EV6lUa0w1BilTWy1wTCFJ+41k+OgXIiXgGJYLKEq2eB gxupubY/RKiIg0XUnlz+vnhweppSaePNWS+fI6FEfRsjnPlputJFlL8Hgb7hYQj19iyx bQmg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:mime-version:content-type:from :in-reply-to:date:cc:message-id:references:to; bh=OoT8vOo2EqSQIpZPZnCfIz/Of08VA/9hcdLbodd0r+w=; b=H7sdN23aoWSa1tZb2uds7GDuYHlio29uP7By3Nh24tV9jxmQqRfqm5mZEODLXx/+JC ClgVKoqbGFI/cWMRy7UY1stsA9/qGxdeHUbYTSCto9iXYtO8E2Y6bzwvtVsPazXfxBOM ZNlX3EcDulKCW8OM68fJs1wPsN3LOrD3t0OQnUl3dklzPT+WtjlUF3CTrwfNw/gPVqO6 Ak4WwimR9gfvaDCnlEr2IZe3zkKIg2xnAGvu8ELAFojEKi6ZEClmkkwluqUd9hsGjgq4 jcZJoJNEKXk2NTJgOBl6ha+HdCjhKMMop69yQfYl6XAEVA1VYEieyjdmTnfRCtUIdhRV QoPQ== X-Gm-Message-State: ALoCoQmrFY7ikyutwHMz5GFUYx76fuiQLDI/X8pPbTm8AwgNVgcvHpu1NbDuZjAFoeuaBwfiVCZw X-Received: by 10.66.250.202 with SMTP id ze10mr37292122pac.132.1446604390342; Tue, 03 Nov 2015 18:33:10 -0800 (PST) Received: from cabot-wlan.adilger.int (S0106002191d9348b.cg.shawcable.net. [96.51.76.157]) by smtp.gmail.com with ESMTPSA id bn1sm32074431pad.17.2015.11.03.18.33.06 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 03 Nov 2015 18:33:09 -0800 (PST) Subject: Re: [PATCH v13 02/51] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v13 02/51] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Content-Type: multipart/signed; boundary="Apple-Mail=_3E10B02B-D902-4579-9A2C-C87E3793B392"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446563847-14005-3-git-send-email-agruenba@redhat.com> Date: Tue, 3 Nov 2015 19:33:02 -0700 Cc: Theodore Ts'o , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Message-Id: <507E7A63-024B-4EBD-B0C3-4ABE8280440F@dilger.ca> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-3-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher , Alexander Viro X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f51.google.com[209.85.220.51] X-Barracuda-Start-Time: 1446604390 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24091 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_3E10B02B-D902-4579-9A2C-C87E3793B392 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Nov 3, 2015, at 8:16 AM, Andreas Gruenbacher = wrote: >=20 > Richacls distinguish between creating non-directories and directories. = To > support that, add an isdir parameter to may_create(). When checking > inode_permission() for create permission, pass in an additional > MAY_CREATE_FILE or MAY_CREATE_DIR mask flag. >=20 > To allow checking for delete *and* create access when replacing an = existing > file via vfs_rename(), add a replace parameter to may_delete(). >=20 > Signed-off-by: Andreas Gruenbacher > Reviewed-by: J. Bruce Fields > --- > fs/namei.c | 43 +++++++++++++++++++++++++------------------ > include/linux/fs.h | 2 ++ > 2 files changed, 27 insertions(+), 18 deletions(-) >=20 > diff --git a/fs/namei.c b/fs/namei.c > index 224ecf1..0259392 100644 > --- a/fs/namei.c > +++ b/fs/namei.c > @@ -453,7 +453,9 @@ static int sb_permission(struct super_block *sb, = struct inode *inode, int mask) > * this, letting us set arbitrary permissions for filesystem access = without > * changing the "normal" UIDs which are used for other things. > * > - * When checking for MAY_APPEND, MAY_WRITE must also be set in @mask. > + * MAY_WRITE must be set in @mask whenever MAY_APPEND, = MAY_CREATE_FILE, or > + * MAY_CREATE_DIR are set. That way, file systems that don't support = these > + * permissions will check for MAY_WRITE instead. > */ > int inode_permission(struct inode *inode, int mask) > { > @@ -2549,10 +2551,11 @@ EXPORT_SYMBOL(__check_sticky); > * 10. We don't allow removal of NFS sillyrenamed files; it's handled = by > * nfs_async_unlink(). > */ > -static int may_delete(struct inode *dir, struct dentry *victim, bool = isdir) > +static int may_delete(struct inode *dir, struct dentry *victim, > + bool isdir, bool replace) > { > struct inode *inode =3D d_backing_inode(victim); > - int error; > + int error, mask =3D MAY_WRITE | MAY_EXEC; >=20 > if (d_is_negative(victim)) > return -ENOENT; > @@ -2561,7 +2564,9 @@ static int may_delete(struct inode *dir, struct = dentry *victim, bool isdir) > BUG_ON(victim->d_parent->d_inode !=3D dir); > audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); >=20 > - error =3D inode_permission(dir, MAY_WRITE | MAY_EXEC); > + if (replace) > + mask |=3D isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; > + error =3D inode_permission(dir, mask); > if (error) > return error; > if (IS_APPEND(dir)) > @@ -2592,14 +2597,16 @@ static int may_delete(struct inode *dir, = struct dentry *victim, bool isdir) > * 3. We should have write and exec permissions on dir > * 4. We can't do it if dir is immutable (done in permission()) > */ > -static inline int may_create(struct inode *dir, struct dentry *child) > +static inline int may_create(struct inode *dir, struct dentry *child, = bool isdir) > { > + int mask =3D isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; > + > audit_inode_child(dir, child, AUDIT_TYPE_CHILD_CREATE); > if (child->d_inode) > return -EEXIST; > if (IS_DEADDIR(dir)) > return -ENOENT; > - return inode_permission(dir, MAY_WRITE | MAY_EXEC); > + return inode_permission(dir, MAY_WRITE | MAY_EXEC | mask); > } >=20 > /* > @@ -2649,7 +2656,7 @@ EXPORT_SYMBOL(unlock_rename); > int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, > bool want_excl) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, false); > if (error) > return error; >=20 > @@ -3494,7 +3501,7 @@ EXPORT_SYMBOL(user_path_create); >=20 > int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, = dev_t dev) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, false); Passing "true" and "false" from the caller doesn't really make it clear to the reader what the argument is for. Since it isn't possible to check the file mode inside may_create() from dentry->d_inode->i_mode (inode doesn't exist yet) then passing "mode" as an argument would at least make the code more readable. "mode" is available in all of the callers. >=20 > if (error) > return error; > @@ -3586,7 +3593,7 @@ SYSCALL_DEFINE3(mknod, const char __user *, = filename, umode_t, mode, unsigned, d >=20 > int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, true); > unsigned max_links =3D dir->i_sb->s_max_links; >=20 > if (error) > @@ -3667,7 +3674,7 @@ EXPORT_SYMBOL(dentry_unhash); >=20 > int vfs_rmdir(struct inode *dir, struct dentry *dentry) > { > - int error =3D may_delete(dir, dentry, 1); > + int error =3D may_delete(dir, dentry, true, false); This is a prime example why passing "true" and "false" as function = arguments is not very useful, and especially prone to bugs when there are two of = them. That said, this is code originally from Al, so he may have a different opinion. Cheers, Andreas >=20 > if (error) > return error; > @@ -3789,7 +3796,7 @@ SYSCALL_DEFINE1(rmdir, const char __user *, = pathname) > int vfs_unlink(struct inode *dir, struct dentry *dentry, struct inode = **delegated_inode) > { > struct inode *target =3D dentry->d_inode; > - int error =3D may_delete(dir, dentry, 0); > + int error =3D may_delete(dir, dentry, false, false); >=20 > if (error) > return error; > @@ -3923,7 +3930,7 @@ SYSCALL_DEFINE1(unlink, const char __user *, = pathname) >=20 > int vfs_symlink(struct inode *dir, struct dentry *dentry, const char = *oldname) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, false); >=20 > if (error) > return error; > @@ -4006,7 +4013,7 @@ int vfs_link(struct dentry *old_dentry, struct = inode *dir, struct dentry *new_de > if (!inode) > return -ENOENT; >=20 > - error =3D may_create(dir, new_dentry); > + error =3D may_create(dir, new_dentry, false); > if (error) > return error; >=20 > @@ -4194,19 +4201,19 @@ int vfs_rename(struct inode *old_dir, struct = dentry *old_dentry, > if (source =3D=3D target) > return 0; >=20 > - error =3D may_delete(old_dir, old_dentry, is_dir); > + error =3D may_delete(old_dir, old_dentry, is_dir, false); > if (error) > return error; >=20 > if (!target) { > - error =3D may_create(new_dir, new_dentry); > + error =3D may_create(new_dir, new_dentry, is_dir); > } else { > new_is_dir =3D d_is_dir(new_dentry); >=20 > if (!(flags & RENAME_EXCHANGE)) > - error =3D may_delete(new_dir, new_dentry, = is_dir); > + error =3D may_delete(new_dir, new_dentry, = is_dir, true); > else > - error =3D may_delete(new_dir, new_dentry, = new_is_dir); > + error =3D may_delete(new_dir, new_dentry, = new_is_dir, true); > } > if (error) > return error; > @@ -4469,7 +4476,7 @@ SYSCALL_DEFINE2(rename, const char __user *, = oldname, const char __user *, newna >=20 > int vfs_whiteout(struct inode *dir, struct dentry *dentry) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, false); > if (error) > return error; >=20 > diff --git a/include/linux/fs.h b/include/linux/fs.h > index 4efa435..d6e2330 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -82,6 +82,8 @@ typedef void (dax_iodone_t)(struct buffer_head = *bh_map, int uptodate); > #define MAY_CHDIR 0x00000040 > /* called from RCU mode, don't block */ > #define MAY_NOT_BLOCK 0x00000080 > +#define MAY_CREATE_FILE 0x00000100 > +#define MAY_CREATE_DIR 0x00000200 >=20 > /* > * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must = correspond > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_3E10B02B-D902-4579-9A2C-C87E3793B392 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVjluXnKl2rkXzB/gAQhnew//Xe1j6dVAnqqkD270AcQPLVGrtC4VAGn4 LpMJ3phONjrAEorMAKDqDjD5KIJPm12T8uKHBpIwX/SvNLKwJvTUt54ghXdXRbIC HKAg1FvOSXKIhY8kBugK2WrzRLSv4Af4eBcIpFB+tuzyz4KjyFk16GPCqTW5a6f1 5F64AfiZXBoC3urtTNlsVU7GGy6p6PFmgKH2BJQk5PlhPQSRmUAE22rgCTvHUOX1 MEaAvVdNv79CldjGoc8GC5hrtYAxbFtG2UEveF/nWyUpGYo3+eWzBsbaH4i0DfLU EBvKaK5sPeO+Z+QRwiosebRLA+AYy8iVqjJtB8ROlEdLcqhYrZqyyMypwRxRz9cM LFelz+zuyuNnh29CaG9V1H0+MZMDsNCFLsN7wOrhz6MEWpFrF6Bm74H/zu+d3dAv KS6PaPXtcVkkdXncAMmcSWYXwgF1NukJEBF+433ZXjlBvPzINWp54vebogVNLOJk uRz1FPKv09nXrIouXwxqbaOC1qNQIjwNfiTHfDoqRZYHjVmCX51sKtNRk/oP8u++ QZs2YWhk/FxzDZb8TX2VS0GHF7JsKojI/G2cbvaRp2v2p+iebkMfctHrCKJZz2dE FUlTM5lX0L6nKWgPmFBz+tNmSPkQzMzNsNXbYB/iDPqkr2UJwk5CTgRZ/7wkbBON b5azRC83hBg= =PL0r -----END PGP SIGNATURE----- --Apple-Mail=_3E10B02B-D902-4579-9A2C-C87E3793B392-- From agruenba@redhat.com Tue Nov 3 20:43:34 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D00A17FC2 for ; Tue, 3 Nov 2015 20:43:34 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 676D6AC002 for ; Tue, 3 Nov 2015 18:43:34 -0800 (PST) X-ASG-Debug-ID: 1446605011-04bdf03f050b820001-NocioJ Received: from mail-lb0-f173.google.com (mail-lb0-f173.google.com [209.85.217.173]) by cuda.sgi.com with ESMTP id 01nBAdhMBvIRYOVG (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 03 Nov 2015 18:43:32 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.217.173 Received: by lbbkw15 with SMTP id kw15so217343lbb.0 for ; Tue, 03 Nov 2015 18:43:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=EAff2Tri6RIcnnO0arbcjYPs/SE+xiEu1cV8isM93sA=; b=OMORgaFxonv/sCpJ2oH8Sm5A88ScKEbnGj9JqvU9rLdxw+VAhari8y+TSZwQKLTYy/ Jnkc6rAlyto3ghPn2z9Q6JkXzP4ZYAgaNZHsJ/RxD8o37Mr/KLM6NzfE7BpIyEl/66lo XWtZxoPNgMGqWljKKa0DHlIWD45GSTV2kkCNObLkMGUdFgXiiOWebDEW/eOdJYo2S8/h mVQooZIXEqa0Q5GOtocwuybSZE6nQ3Yqh2hsKPxdk3JnFYIEnpVyHbsEvg1aMs/EeBkj G0mQZ5qZeSK4b9AtBmINDz2/JEMECqMue59RK+kSoDziVK4s9iJq/CC0BP7bpVeClhBa ZKyw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=EAff2Tri6RIcnnO0arbcjYPs/SE+xiEu1cV8isM93sA=; b=E52XPMMYt+Irydn/zfmAztJdRzUk2q12bTRB5hXJMZjhtyA1uPXZqERjmP7CpNaQ9W ei7gOzC8v3dvJyrdhWfPH7Ysixadew/PfxLM0nRagi/KWsAFnK4HFu3J8sF+Xh4ve5oq NApyaxnDx4PAZlANvzT+zjAov9Fsfcq7vYG0AA1pKrP9uWjZBi2uTKqObTIMVPVnv8Rc wE/BJz4ld07ac7tO4Fzbja9Jqwd2LmlfaJ8stpeipE6bfEXj3Q5fxt5rkipCj/jQyhyQ CVTk/7WHS9/4TVyJ4L+kIdxqa9an9VX29saAhy13urlAkM8FjUUVbvQvn9Lhk2Q4lrZE XD/g== X-Gm-Message-State: ALoCoQkC57kd7myhvZz5JshC0ZJQc7QXpCZyikmz7Gno1IR/YbWeFbOY/ZP9JKqBilea6gKaBvop MIME-Version: 1.0 X-Received: by 10.112.236.8 with SMTP id uq8mr14840527lbc.116.1446605011151; Tue, 03 Nov 2015 18:43:31 -0800 (PST) Received: by 10.112.53.42 with HTTP; Tue, 3 Nov 2015 18:43:31 -0800 (PST) In-Reply-To: References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-22-git-send-email-agruenba@redhat.com> <06282344-726E-49AD-936B-7BFF8F43B967@dilger.ca> Date: Wed, 4 Nov 2015 03:43:31 +0100 Message-ID: Subject: Re: [PATCH v13 21/51] ext4: Add richacl feature flag From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v13 21/51] ext4: Add richacl feature flag To: Andreas Dilger Cc: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API , "Aneesh Kumar K.V" Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lb0-f173.google.com[209.85.217.173] X-Barracuda-Start-Time: 1446605012 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24091 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Wed, Nov 4, 2015 at 3:28 AM, Andreas Gruenbacher wrote: > It's the commit message that's misleading here, I'll fix it. Commit message changed to: This feature flag selects richacl instead of POSIX ACL support on the filesystem. When this feature is off, the "acl" and "noacl" mount options control whether POSIX ACLs are enabled. When it is on, richacls are automatically enabled and using the "noacl" mount option leads to an error. Thanks, Andreas From agruenba@redhat.com Tue Nov 3 21:02:38 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1B1587FC7 for ; Tue, 3 Nov 2015 21:02:38 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 85CD9AC003 for ; Tue, 3 Nov 2015 19:02:34 -0800 (PST) X-ASG-Debug-ID: 1446606147-04cb6c296a0c2d0001-NocioJ Received: from mail-lf0-f41.google.com (mail-lf0-f41.google.com [209.85.215.41]) by cuda.sgi.com with ESMTP id itjukA3SELaXw9tn (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 03 Nov 2015 19:02:28 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.215.41 Received: by lfbf136 with SMTP id f136so34330283lfb.0 for ; Tue, 03 Nov 2015 19:02:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=t2OpH9ZDWmHfJJqRidP2uevbtHaaYN/bb0xRG3zpRbQ=; b=saBMWxvZXS3h+ydIVs37kjVkfiGUyKb80NS4YUZSsxe4Vka8am5/O4Nqif4LF09eZi BZlXsmL20kwunkWOw8fyzQVbJzrPVguOaXl/3TqtG0M0pD2E2gIFx+iAmmA3IlQS8Yyb 5LSFg+qGvFhy3OzGRUl7Rc/LfLaOfgJlNhWFlLp790A1ySoiloOt8BRF4BokCPWzL2xc xU4cZmF3vafPmZwCzk5Ti3+4iigq5K93R2R6tt2aNk9xMXNo4XiCrGapJq+hyyf8UgS1 t8iGm8g20mqgPerA1qnqGGeHq2/jIN1PVtj1fzN0XepMfcAMCZ0f6U4ka78RyjWfQ2rq 5dsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=t2OpH9ZDWmHfJJqRidP2uevbtHaaYN/bb0xRG3zpRbQ=; b=UkHzU5S4VuM24t8yvCF08DJXVXMwRDx72R5X5kJ8VlqH/qyOYrk98PtSa5XaXrp9gP zhwS8fW1ceJUxIeN0OQJQtkWpDTB49EwfSAxjIKxEEATrbt3cMdclrSTcMyxeJZX6q1X h9FLbl4jVWcSBH986zM7Suo4IlfIUBUxTI6XFbqIX3NcRM/+NWB0pBJm1EZJuCHfy6HJ yHypdK1pSIO2i6BluweQLtfHZ2s3yAEw5YRuyiYrNVPu4bXH6lOlBRXjS0TIu+6A9Iw4 VeSqOp0KnX9cUH1vLxesBBQigBGl0qFnIfUw5RwG4MaiMEtriLIAfMKCI8lXH8/kgL1v 3n0w== X-Gm-Message-State: ALoCoQns7bQEvRmDVPDDjaAlLXJWLei4l/vTu87kseYWARjYFG3oqTRfvAtrqvlI5S3oa160MQf3 MIME-Version: 1.0 X-Received: by 10.25.170.204 with SMTP id t195mr9255584lfe.41.1446606147373; Tue, 03 Nov 2015 19:02:27 -0800 (PST) Received: by 10.112.53.42 with HTTP; Tue, 3 Nov 2015 19:02:27 -0800 (PST) In-Reply-To: <507E7A63-024B-4EBD-B0C3-4ABE8280440F@dilger.ca> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-3-git-send-email-agruenba@redhat.com> <507E7A63-024B-4EBD-B0C3-4ABE8280440F@dilger.ca> Date: Wed, 4 Nov 2015 04:02:27 +0100 Message-ID: Subject: Re: [PATCH v13 02/51] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v13 02/51] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags To: Andreas Dilger Cc: Alexander Viro , "Theodore Ts'o" , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lf0-f41.google.com[209.85.215.41] X-Barracuda-Start-Time: 1446606148 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24092 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Wed, Nov 4, 2015 at 3:33 AM, Andreas Dilger wrote: > On Nov 3, 2015, at 8:16 AM, Andreas Gruenbacher wrote: >> @@ -3667,7 +3674,7 @@ EXPORT_SYMBOL(dentry_unhash); >> >> int vfs_rmdir(struct inode *dir, struct dentry *dentry) >> { >> - int error = may_delete(dir, dentry, 1); >> + int error = may_delete(dir, dentry, true, false); > > This is a prime example why passing "true" and "false" as function arguments > is not very useful, and especially prone to bugs when there are two of them. > > That said, this is code originally from Al, so he may have a different > opinion. Have you checked how vfs_rename uses the is_dir and new_is_dir variables? Using file modes there probably won't help readability. An enum maybe? Thanks, Andreas From ross.zwisler@linux.intel.com Tue Nov 3 22:46:20 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1645E7FC8 for ; Tue, 3 Nov 2015 22:46:20 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 99DFEAC001 for ; Tue, 3 Nov 2015 20:46:16 -0800 (PST) X-ASG-Debug-ID: 1446612374-04cb6c296d0dda0001-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id MHW97GE2rppHnik5 for ; Tue, 03 Nov 2015 20:46:14 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga103.fm.intel.com with ESMTP; 03 Nov 2015 20:46:14 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,241,1444719600"; d="scan'208";a="842629723" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.156]) by fmsmga002.fm.intel.com with ESMTP; 03 Nov 2015 20:46:13 -0800 Date: Tue, 3 Nov 2015 21:46:13 -0700 From: Ross Zwisler To: Dan Williams Cc: Ross Zwisler , Dave Chinner , Brian Foster , Jan Kara , xfs@oss.sgi.com, linux-fsdevel , "linux-nvdimm@lists.01.org" Subject: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Message-ID: <20151104044613.GA29575@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Mail-Followup-To: Ross Zwisler , Dan Williams , Dave Chinner , Brian Foster , Jan Kara , xfs@oss.sgi.com, linux-fsdevel , "linux-nvdimm@lists.01.org" References: <20151029142950.GE11663@bfoster.bfoster> <20151029233756.GS19199@dastard> <20151030123657.GC54905@bfoster.bfoster> <20151102011433.GW19199@dastard> <20151102141509.GA29346@bfoster.bfoster> <20151102214424.GJ10656@dastard> <20151103050413.GB19199@dastard> <20151104005056.GA24710@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1446612374 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24093 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Tue, Nov 03, 2015 at 05:02:34PM -0800, Dan Williams wrote: > On Tue, Nov 3, 2015 at 4:50 PM, Ross Zwisler > wrote: > > On Tue, Nov 03, 2015 at 04:04:13PM +1100, Dave Chinner wrote: > >> On Mon, Nov 02, 2015 at 07:53:27PM -0800, Dan Williams wrote: > >> > On Mon, Nov 2, 2015 at 1:44 PM, Dave Chinner wrote: > > <> > >> > > This comes back to the comments I made w.r.t. the pmem driver > >> > > implementation doing synchronous IO by immediately forcing CPU cache > >> > > flushes and barriers. it's obviously correct, but it looks like > >> > > there's going to be a major performance penalty associated with it. > >> > > This is why I recently suggested that a pmem driver that doesn't do > >> > > CPU cache writeback during IO but does it on REQ_FLUSH is an > >> > > architecture we'll likely have to support. > >> > > > >> > > >> > The only thing we can realistically delay is wmb_pmem() i.e. the final > >> > sync waiting for data that has *left* the cpu cache. Unless/until we > >> > get a architecturally guaranteed method to write-back the entire > >> > cache, or flush the cache by physical-cache-way we're stuck with > >> > either non-temporal cycles or looping on potentially huge virtual > >> > address ranges. > >> > >> I'm missing something: why won't flushing the address range returned > >> by bdev_direct_access() during a fsync operation work? i.e. we're > >> working with exactly the same address as dax_clear_blocks() and > >> dax_do_io() use, so why can't we look up that address and flush it > >> from fsync? > > > > I could be wrong, but I don't see a reason why DAX can't use the strategy of > > writing data and marking it dirty in one step and then flushing later in > > response to fsync/msync. I think this could be used everywhere we write or > > zero data - dax_clear_blocks(), dax_io() etc. (I believe that lots of the > > block zeroing code will go away once we have the XFS and ext4 patches in that > > guarantee we will only get written and zeroed extents from the filesystem in > > response to get_block().) I think the PMEM driver, lacking the ability to > > mark things as dirty in the radix tree, etc, will need to keep doing things > > synchronously. > > Not without numbers showing the relative performance of dirtying cache > followed by flushing vs non-temporal + pcommit. Sorry - do you mean that you want to make sure that we get a performance benefit from the "dirty and flush later" path vs the "write and flush now" path? Sure, that seems reasonable. > > Hmm...if we go this path, though, is that an argument against moving the > > zeroing from DAX down into the driver? True, with BRD it makes things nice > > and efficient because you can zero and never flush, and the driver knows > > there's nothing else to do. > > > > For PMEM, though, you lose the ability to zero the data and then queue the > > flushing for later, as you would be able to do if you left the zeroing code in > > DAX. The benefit of this is that if you are going to immediately re-write the > > newly zeroed data (which seems common), PMEM will end up doing an extra cache > > flush of the zeroes, only to have them overwritten and marked as dirty by DAX. > > If we leave the zeroing to DAX we can mark it dirty once, zero it once, write > > it once, and flush it once. > > Why do we lose the ability to flush later if the driver supports > blkdev_issue_zeroout? I think that if you implement zeroing in the driver you'd need to also flush in the driver because you wouldn't have access to the radix tree to be able to mark entries as dirty so you can flush them later. As I think about this more, though, I'm not sure that having the zeroing flush later could work. I'm guessing that the filesystem must require a sync point between the zeroing and the subsequent follow-up writes so that you can sync metadata for the block allocation. Otherwise you could end up in a situation where you've got your metadata pointing at newly allocated blocks but the new zeros are still in the processor cache - if you lose power you've just created an information leak. Dave, Jan, does this make sense? > > This would make us lose the ability to do hardware-assisted flushing in the > > future that requires driver specific knowledge, though I don't think that > > exists yet. > > ioatdma has supported memset() for a while now, but I would prioritize > a non-temporal SIMD implementation first. Sweet, didn't know about that, obviously. :) Thanks for the pointer. > > Perhaps we should leave the zeroing in DAX for now to take > > advantage of the single flush, and then move it down if a driver can improve > > performance with hardware assisted PMEM zeroing? > > Not convinced. I think we should implement the driver zeroing > solution and take a look at performance. I agree, this should all be driven by performance measurements. Thanks for the feedback. From jack@suse.cz Wed Nov 4 03:06:27 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 960C47FD6 for ; Wed, 4 Nov 2015 03:06:27 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5E3708F8035 for ; Wed, 4 Nov 2015 01:06:24 -0800 (PST) X-ASG-Debug-ID: 1446627976-04bdf03f0314520001-NocioJ Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id 5H2Uess5sS9Os1h0 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 04 Nov 2015 01:06:18 -0800 (PST) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 8B46AAC82; Wed, 4 Nov 2015 09:05:57 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id EE83E80F24; Wed, 4 Nov 2015 10:06:12 +0100 (CET) Date: Wed, 4 Nov 2015 10:06:12 +0100 From: Jan Kara To: Ross Zwisler Cc: Dan Williams , Dave Chinner , Brian Foster , Jan Kara , xfs@oss.sgi.com, linux-fsdevel , "linux-nvdimm@lists.01.org" Subject: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Message-ID: <20151104090612.GA10124@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX References: <20151029233756.GS19199@dastard> <20151030123657.GC54905@bfoster.bfoster> <20151102011433.GW19199@dastard> <20151102141509.GA29346@bfoster.bfoster> <20151102214424.GJ10656@dastard> <20151103050413.GB19199@dastard> <20151104005056.GA24710@linux.intel.com> <20151104044613.GA29575@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151104044613.GA29575@linux.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mx2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1446627977 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24098 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue 03-11-15 21:46:13, Ross Zwisler wrote: > On Tue, Nov 03, 2015 at 05:02:34PM -0800, Dan Williams wrote: > > > Hmm...if we go this path, though, is that an argument against moving the > > > zeroing from DAX down into the driver? True, with BRD it makes things nice > > > and efficient because you can zero and never flush, and the driver knows > > > there's nothing else to do. > > > > > > For PMEM, though, you lose the ability to zero the data and then queue the > > > flushing for later, as you would be able to do if you left the zeroing code in > > > DAX. The benefit of this is that if you are going to immediately re-write the > > > newly zeroed data (which seems common), PMEM will end up doing an extra cache > > > flush of the zeroes, only to have them overwritten and marked as dirty by DAX. > > > If we leave the zeroing to DAX we can mark it dirty once, zero it once, write > > > it once, and flush it once. > > > > Why do we lose the ability to flush later if the driver supports > > blkdev_issue_zeroout? > > I think that if you implement zeroing in the driver you'd need to also > flush in the driver because you wouldn't have access to the radix tree to > be able to mark entries as dirty so you can flush them later. > > As I think about this more, though, I'm not sure that having the zeroing > flush later could work. I'm guessing that the filesystem must require a > sync point between the zeroing and the subsequent follow-up writes so > that you can sync metadata for the block allocation. Otherwise you could > end up in a situation where you've got your metadata pointing at newly > allocated blocks but the new zeros are still in the processor cache - if > you lose power you've just created an information leak. Dave, Jan, does > this make sense? So the problem you describe does not exist. Thing to keep in mind is that filesystem are designed to work reliably with 'non-persistent' cache in the disk which is common these days. That's why we bother with all that REQ_FLUSH | REQ_FUA and blkdev_issue_flush() stuff after all. Processor cache is exactly that kind of the cache attached to the PMEM storage. And Dave and I try to steer you to a solution that would also treat it equally in DAX filesystems as well :). Now how the problem is currently solved: When we allocate blocks, we just record that information in a transaction in the journal. For DAX case we also submit the IO zeroing those blocks and wait for it. Now if we crash before the transaction gets committed, blocks won't be seen in the inode after a journal recovery and thus no data exposure can happen. As a part of transaction commit, we call blkdev_issue_flush() (or submit REQ_FLUSH request). We expect that to force out all the IO in volatile caches into the persistent storage. So this will also force the zeroing into persistent storage for normal disks and AFAIU if you do zeroing with non-temporal writes in pmem driver and then do wmb_pmem() in response to a flush request we get the same persistency guarantee in pmem case as well. So after a transaction commit we are guaranteed to see zeros in those allocated blocks. So the transaction commit and the corresponding flush request in particular is the sync point you speak about above but the good thing is that in most cases this will happen after real data gets written into those blocks so we save the unnecessary flush. Honza -- Jan Kara SUSE Labs, CR From ross.zwisler@linux.intel.com Wed Nov 4 09:36:22 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E1A4D7FC1 for ; Wed, 4 Nov 2015 09:36:22 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id D00C6304043 for ; Wed, 4 Nov 2015 07:36:22 -0800 (PST) X-ASG-Debug-ID: 1446651380-04cbb024241f540001-NocioJ Received: from mga01.intel.com ([192.55.52.88]) by cuda.sgi.com with ESMTP id vZZ0UmJsdrWd26MU for ; Wed, 04 Nov 2015 07:36:21 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.88 X-ASG-Whitelist: EmailCat (corporate) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 04 Nov 2015 07:35:51 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,243,1444719600"; d="scan'208";a="826919632" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.156]) by fmsmga001.fm.intel.com with ESMTP; 04 Nov 2015 07:35:51 -0800 Date: Wed, 4 Nov 2015 08:35:51 -0700 From: Ross Zwisler To: Jan Kara Cc: Ross Zwisler , Dan Williams , Dave Chinner , Brian Foster , xfs@oss.sgi.com, linux-fsdevel , "linux-nvdimm@lists.01.org" Subject: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Message-ID: <20151104153551.GA9981@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Mail-Followup-To: Ross Zwisler , Jan Kara , Dan Williams , Dave Chinner , Brian Foster , xfs@oss.sgi.com, linux-fsdevel , "linux-nvdimm@lists.01.org" References: <20151030123657.GC54905@bfoster.bfoster> <20151102011433.GW19199@dastard> <20151102141509.GA29346@bfoster.bfoster> <20151102214424.GJ10656@dastard> <20151103050413.GB19199@dastard> <20151104005056.GA24710@linux.intel.com> <20151104044613.GA29575@linux.intel.com> <20151104090612.GA10124@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151104090612.GA10124@quack.suse.cz> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: UNKNOWN[192.55.52.88] X-Barracuda-Start-Time: 1446651380 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 04, 2015 at 10:06:12AM +0100, Jan Kara wrote: > On Tue 03-11-15 21:46:13, Ross Zwisler wrote: > > On Tue, Nov 03, 2015 at 05:02:34PM -0800, Dan Williams wrote: > > > > Hmm...if we go this path, though, is that an argument against moving the > > > > zeroing from DAX down into the driver? True, with BRD it makes things nice > > > > and efficient because you can zero and never flush, and the driver knows > > > > there's nothing else to do. > > > > > > > > For PMEM, though, you lose the ability to zero the data and then queue the > > > > flushing for later, as you would be able to do if you left the zeroing code in > > > > DAX. The benefit of this is that if you are going to immediately re-write the > > > > newly zeroed data (which seems common), PMEM will end up doing an extra cache > > > > flush of the zeroes, only to have them overwritten and marked as dirty by DAX. > > > > If we leave the zeroing to DAX we can mark it dirty once, zero it once, write > > > > it once, and flush it once. > > > > > > Why do we lose the ability to flush later if the driver supports > > > blkdev_issue_zeroout? > > > > I think that if you implement zeroing in the driver you'd need to also > > flush in the driver because you wouldn't have access to the radix tree to > > be able to mark entries as dirty so you can flush them later. > > > > As I think about this more, though, I'm not sure that having the zeroing > > flush later could work. I'm guessing that the filesystem must require a > > sync point between the zeroing and the subsequent follow-up writes so > > that you can sync metadata for the block allocation. Otherwise you could > > end up in a situation where you've got your metadata pointing at newly > > allocated blocks but the new zeros are still in the processor cache - if > > you lose power you've just created an information leak. Dave, Jan, does > > this make sense? > > So the problem you describe does not exist. Thing to keep in mind is that > filesystem are designed to work reliably with 'non-persistent' cache in the > disk which is common these days. That's why we bother with all that > REQ_FLUSH | REQ_FUA and blkdev_issue_flush() stuff after all. Processor > cache is exactly that kind of the cache attached to the PMEM storage. And > Dave and I try to steer you to a solution that would also treat it equally > in DAX filesystems as well :). And I'm always grateful for the guidance. :) > Now how the problem is currently solved: When we allocate blocks, we just > record that information in a transaction in the journal. For DAX case we > also submit the IO zeroing those blocks and wait for it. Now if we crash > before the transaction gets committed, blocks won't be seen in the inode > after a journal recovery and thus no data exposure can happen. As a part of > transaction commit, we call blkdev_issue_flush() (or submit REQ_FLUSH > request). We expect that to force out all the IO in volatile caches into > the persistent storage. So this will also force the zeroing into persistent > storage for normal disks and AFAIU if you do zeroing with non-temporal > writes in pmem driver and then do wmb_pmem() in response to a flush request > we get the same persistency guarantee in pmem case as well. So after a > transaction commit we are guaranteed to see zeros in those allocated > blocks. > > So the transaction commit and the corresponding flush request in particular > is the sync point you speak about above but the good thing is that in most > cases this will happen after real data gets written into those blocks so we > save the unnecessary flush. Cool, thank you for the explanation, that makes sense to me. When dealing with normal SSDs and the page cache, does the filesystem keep the zeroes in the page cache, or does it issue it directly to the driver via sb_issue_zeroout()/blkdev_issue_zeroout()? If we keep it in the page cache so that the follow-up writes just update the dirty pages and we end up writing to media once, this seems like it would flow nicely into the idea of zeroing new blocks at the DAX level without flushing and just marking them as dirty in the radix tree. If the zeroing happens via sb_issue_zeroout() then this probably doesn't make sense because the existing flow won't include a fsync/msync type step of the newly zeroed data in the page cache. From jack@suse.cz Wed Nov 4 11:21:59 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D30F87FD6 for ; Wed, 4 Nov 2015 11:21:59 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id A7F298F8035 for ; Wed, 4 Nov 2015 09:21:56 -0800 (PST) X-ASG-Debug-ID: 1446657712-04bdf03f0420e20001-NocioJ Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id bFcSuACIqFpbNsBV (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 04 Nov 2015 09:21:53 -0800 (PST) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 5A004AC1D; Wed, 4 Nov 2015 17:21:32 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id E494B80F24; Wed, 4 Nov 2015 18:21:48 +0100 (CET) Date: Wed, 4 Nov 2015 18:21:48 +0100 From: Jan Kara To: Ross Zwisler Cc: Jan Kara , Dan Williams , Dave Chinner , Brian Foster , xfs@oss.sgi.com, linux-fsdevel , "linux-nvdimm@lists.01.org" Subject: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX Message-ID: <20151104172148.GB20212@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: Don't use unwritten extents for DAX References: <20151102011433.GW19199@dastard> <20151102141509.GA29346@bfoster.bfoster> <20151102214424.GJ10656@dastard> <20151103050413.GB19199@dastard> <20151104005056.GA24710@linux.intel.com> <20151104044613.GA29575@linux.intel.com> <20151104090612.GA10124@quack.suse.cz> <20151104153551.GA9981@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151104153551.GA9981@linux.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mx2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1446657713 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24107 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed 04-11-15 08:35:51, Ross Zwisler wrote: > On Wed, Nov 04, 2015 at 10:06:12AM +0100, Jan Kara wrote: > > Now how the problem is currently solved: When we allocate blocks, we just > > record that information in a transaction in the journal. For DAX case we > > also submit the IO zeroing those blocks and wait for it. Now if we crash > > before the transaction gets committed, blocks won't be seen in the inode > > after a journal recovery and thus no data exposure can happen. As a part of > > transaction commit, we call blkdev_issue_flush() (or submit REQ_FLUSH > > request). We expect that to force out all the IO in volatile caches into > > the persistent storage. So this will also force the zeroing into persistent > > storage for normal disks and AFAIU if you do zeroing with non-temporal > > writes in pmem driver and then do wmb_pmem() in response to a flush request > > we get the same persistency guarantee in pmem case as well. So after a > > transaction commit we are guaranteed to see zeros in those allocated > > blocks. > > > > So the transaction commit and the corresponding flush request in particular > > is the sync point you speak about above but the good thing is that in most > > cases this will happen after real data gets written into those blocks so we > > save the unnecessary flush. > > Cool, thank you for the explanation, that makes sense to me. > > When dealing with normal SSDs and the page cache, does the filesystem keep the > zeroes in the page cache, or does it issue it directly to the driver via > sb_issue_zeroout()/blkdev_issue_zeroout()? If we keep it in the page cache so Currently we use sb_issue_zeroout() for zeroing out blocks in ext4 (for DAX and in some other cases to avoid splitting extents too much). Note that zeroing blocks in page cache won't work on it's own - blkdev_issue_flush() doesn't force out any dirty pages from page cache so transaction commit wouldn't make sure stale block contents is not exposed. However we actually do have a mechanism in ext4 to force out data from page cache during transaction commit - that is what data=ordered mode is all about - we can attach inode to a transaction and all dirty data of that inode that has underlying blocks allocated is flushed as a part of transaction commit. So this makes sure stale data cannot be seen after a crash in data=ordered mode. XFS doesn't have this mechanism and thus it normally has to put allocated blocks in unwritten extents, submit IO to write data to those blocks, and convert extent to written once IO finishes. > that the follow-up writes just update the dirty pages and we end up > writing to media once, this seems like it would flow nicely into the idea > of zeroing new blocks at the DAX level without flushing and just marking > them as dirty in the radix tree. So for ext4 you could make this work the same way data=ordered mode works - just store zeroes into allocated blocks, mark page as dirty in the radix tree, attach inode to the running transaction, and on transaction commit do the flush. However note that for DAX page faults zeroing needs to happen under fs lock serializing faults to the same page which effectively means it happens inside filesystem's block mapping function and at that place we don't have a page to zero out. So it would require considerable plumbing to make this work even for ext4 and I'm not even speaking of XFS where the flushing mechanism on transaction commit doesn't currently exist AFAIK. Frankly since the savings would be realized only for allocating writes into mmaped file which aren't than common, I'm not convinced this would be worth it. > If the zeroing happens via sb_issue_zeroout() then this probably doesn't > make sense because the existing flow won't include a fsync/msync type > step of the newly zeroed data in the page cache. Honza -- Jan Kara SUSE Labs, CR From jmoyer@redhat.com Wed Nov 4 12:35:07 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E365A7FD7 for ; Wed, 4 Nov 2015 12:35:07 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id D1C3F30404E for ; Wed, 4 Nov 2015 10:35:07 -0800 (PST) X-ASG-Debug-ID: 1446662103-04cbb0242424050001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id dyPxwZo48v6dofSC (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 04 Nov 2015 10:35:04 -0800 (PST) X-Barracuda-Envelope-From: jmoyer@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 5C747376B83; Wed, 4 Nov 2015 18:35:02 +0000 (UTC) Received: from segfault.boston.devel.redhat.com (segfault.boston.devel.redhat.com [10.19.60.26]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA4IYweD007749 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 4 Nov 2015 13:34:59 -0500 From: Jeff Moyer To: Dave Chinner Cc: linux-nvdimm@ml01.01.org, "J. Bruce Fields" , linux-mm@kvack.org, Andreas Dilger , "H. Peter Anvin" , Jeff Layton , x86@kernel.org, Ingo Molnar , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, Alexander Viro , Thomas Gleixner , axboe@kernel.dk, "Theodore Ts'o" , linux-kernel@vger.kernel.org, Jan Kara , linux-fsdevel@vger.kernel.org, Andrew Morton , Matthew Wilcox Subject: Re: [RFC 00/11] DAX fsynx/msync support References: <1446149535-16200-1-git-send-email-ross.zwisler@linux.intel.com> <20151030035533.GU19199@dastard> <20151030183938.GC24643@linux.intel.com> <20151101232948.GF10656@dastard> <20151102201029.GI10656@dastard> X-ASG-Orig-Subj: Re: [RFC 00/11] DAX fsynx/msync support X-PGP-KeyID: 1F78E1B4 X-PGP-CertKey: F6FE 280D 8293 F72C 65FD 5A58 1FF8 A7CA 1F78 E1B4 X-PCLoadLetter: What the f**k does that mean? Date: Wed, 04 Nov 2015 13:34:58 -0500 In-Reply-To: (Jeff Moyer's message of "Mon, 02 Nov 2015 16:02:48 -0500") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446662103 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Jeff Moyer writes: >> Hence once the filesystem has waited on the REQ_WRITE|REQ_FLUSH IO >> to complete, we know that all the earlier REQ_WRITE IOs are on >> stable storage, too. Hence there's no need for the elevator to drain >> the queue to guarantee completion ordering - the dispatch ordering >> and flush/fua write semantics guarantee that when the flush/fua >> completes, all the IOs dispatch prior to that flush/fua write are >> also on stable storage... > > Des xfs rely on this model for correctness? If so, I'd say we've got a > problem. Dave? From prvs=87502b8a99=clm@fb.com Wed Nov 4 12:51:14 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7A03C7FD7 for ; Wed, 4 Nov 2015 12:51:14 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5C2538F8049 for ; Wed, 4 Nov 2015 10:51:11 -0800 (PST) X-ASG-Debug-ID: 1446663069-04cb6c296d21640001-NocioJ Received: from mx0b-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by cuda.sgi.com with ESMTP id nAkDOEhxvbf8qDAE (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 04 Nov 2015 10:51:10 -0800 (PST) X-Barracuda-Envelope-From: prvs=87502b8a99=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.153.30 X-ASG-Whitelist: EmailCat (corporate) Received: from pps.filterd (m0001255.ppops.net [127.0.0.1]) by mx0b-00082601.pphosted.com (8.15.0.59/8.15.0.59) with SMTP id tA4IklFq024434; Wed, 4 Nov 2015 10:51:08 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=date : from : to : subject : message-id : mime-version : content-type; s=facebook; bh=DQGZwvTVlaNBKHbdbFdct7acUsDjvysL8W3Wvq3rNGY=; b=DJ1kxVo/l0cFAAP80JM3y30iNcNcgWbyMClbsmjk9RWV5CrPf/IPFX+Q6gqoUSfpImB4 5JB7ZktH6+Gy+XV7+EfSGkPrcN2NQYsJFh7WoV1K8xcevGn6ofiOLWfu77IL2Sq0FT8x oi5ZJEHlA18y6Wd2JoSXOyaQjDXrNhtwVTU= Received: from mail.thefacebook.com ([199.201.64.23]) by mx0b-00082601.pphosted.com with ESMTP id 1xxfbqfpfg-2 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Wed, 04 Nov 2015 10:51:08 -0800 Received: from localhost (192.168.52.123) by mail.thefacebook.com (192.168.16.11) with Microsoft SMTP Server (TLS) id 14.3.248.2; Wed, 4 Nov 2015 10:51:06 -0800 Date: Wed, 4 Nov 2015 13:51:03 -0500 From: Chris Mason To: Dave Chinner , , Tejun Heo Subject: [PATCH RFC] use WQ_MEM_RECLAIM for m_log_workqueue Message-ID: <20151104185103.GC5458@ret.masoncoding.com> X-ASG-Orig-Subj: [PATCH RFC] use WQ_MEM_RECLAIM for m_log_workqueue MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline User-Agent: Mutt/1.5.23.1 (2014-03-12) X-Originating-IP: [192.168.52.123] X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2015-11-04_12:,, signatures=0 X-Barracuda-Connect: mx0b-00082601.pphosted.com[67.231.153.30] X-Barracuda-Start-Time: 1446663070 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 We're consistently hitting deadlocks here with XFS on recent kernels. After some digging through the crash files, it looks like everyone in the system is waiting for XFS to reclaim memory. Something like this: PID: 2733434 TASK: ffff8808cd242800 CPU: 19 COMMAND: "java" #0 [ffff880019c53588] __schedule at ffffffff818c4df2 #1 [ffff880019c535d8] schedule at ffffffff818c5517 #2 [ffff880019c535f8] _xfs_log_force_lsn at ffffffff81316348 #3 [ffff880019c53688] xfs_log_force_lsn at ffffffff813164fb #4 [ffff880019c536b8] xfs_iunpin_wait at ffffffff8130835e #5 [ffff880019c53728] xfs_reclaim_inode at ffffffff812fd453 #6 [ffff880019c53778] xfs_reclaim_inodes_ag at ffffffff812fd8c7 #7 [ffff880019c53928] xfs_reclaim_inodes_nr at ffffffff812fe433 #8 [ffff880019c53958] xfs_fs_free_cached_objects at ffffffff8130d3b9 #9 [ffff880019c53968] super_cache_scan at ffffffff811a6f73 #10 [ffff880019c539c8] shrink_slab at ffffffff811460e6 #11 [ffff880019c53aa8] shrink_zone at ffffffff8114a53f #12 [ffff880019c53b48] do_try_to_free_pages at ffffffff8114a8ba #13 [ffff880019c53be8] try_to_free_pages at ffffffff8114ad5a #14 [ffff880019c53c78] __alloc_pages_nodemask at ffffffff8113e1b8 #15 [ffff880019c53d88] alloc_kmem_pages_node at ffffffff8113e671 #16 [ffff880019c53dd8] copy_process at ffffffff8104f781 #17 [ffff880019c53ec8] do_fork at ffffffff8105129c #18 [ffff880019c53f38] sys_clone at ffffffff810515b6 #19 [ffff880019c53f48] stub_clone at ffffffff818c8e4d xfs_log_force_lsn is waiting for logs to get cleaned, which is waiting for IO, which is waiting for workers to complete the IO which is waiting for worker threads that don't exist yet: PID: 2752451 TASK: ffff880bd6bdda00 CPU: 37 COMMAND: "kworker/37:1" #0 [ffff8808d20abbb0] __schedule at ffffffff818c4df2 #1 [ffff8808d20abc00] schedule at ffffffff818c5517 #2 [ffff8808d20abc20] schedule_timeout at ffffffff818c7c6c #3 [ffff8808d20abcc0] wait_for_completion_killable at ffffffff818c6495 #4 [ffff8808d20abd30] kthread_create_on_node at ffffffff8106ec82 #5 [ffff8808d20abdf0] create_worker at ffffffff8106752f #6 [ffff8808d20abe40] worker_thread at ffffffff810699be #7 [ffff8808d20abec0] kthread at ffffffff8106ef59 #8 [ffff8808d20abf50] ret_from_fork at ffffffff818c8ac8 I think we should be using WQ_MEM_RECLAIM to make sure this thread pool makes progress when we're not able to allocate new workers. Outside of extensive analysis from gcc, this patch is untested. If it looks good, we'll try it here and report back about the results. Signed-off-by: Chris Mason diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 904f637..40276bd 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -843,7 +843,8 @@ xfs_init_mount_workqueues( goto out_destroy_cil; mp->m_log_workqueue = alloc_workqueue("xfs-log/%s", - WQ_FREEZABLE|WQ_HIGHPRI, 0, mp->m_fsname); + WQ_MEM_RECLAIM|WQ_FREEZABLE|WQ_HIGHPRI, + 0, mp->m_fsname); if (!mp->m_log_workqueue) goto out_destroy_reclaim; From agruenba@redhat.com Wed Nov 4 15:54:55 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E69127FDB for ; Wed, 4 Nov 2015 15:54:55 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id D69B130404E for ; Wed, 4 Nov 2015 13:54:52 -0800 (PST) X-ASG-Debug-ID: 1446674089-04cb6c296d26040001-NocioJ Received: from mail-lb0-f180.google.com (mail-lb0-f180.google.com [209.85.217.180]) by cuda.sgi.com with ESMTP id HvE8NB6mA9G9YZjm (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 04 Nov 2015 13:54:50 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.217.180 Received: by lbbes7 with SMTP id es7so22457521lbb.2 for ; Wed, 04 Nov 2015 13:54:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=t3ztIN1h/QjSnnrg8g7vHZT4w45dNdlwegl3toFWcLM=; b=JvajgmUHzyCrtmBWI/qq85c5wyBA2ZczRTSNUxaWm6blpjQzC53xqLjCfc9pwKuT8j Oi97J38LosMHIYKosXDwpZHB1qm4gB5Rv2D+z6DinMx81bKeykx+FSqEk8qaAM7C1tNa NVwLW3DHN8Wz484cy1ByzjZWzBgIcSx/MRgKqncIMR6ltlfBrYDXUVtPeDX3NJkTnTHx MjI9bwNF+RMqDye0Chb0SmmzxPOrdnXNhhIeXTkFpiQc+eQ5wITuWK6+ONdJnZBx1xcO wTGO63+GcuELFsr9yFvSR5vJXJXhG8CmfHfUPtYxjp4MOjlk82dWs7AS5XDwr1hTFQOx cTMg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=t3ztIN1h/QjSnnrg8g7vHZT4w45dNdlwegl3toFWcLM=; b=RZIVi0VYW63crngXdRFxNFRyPsYhYMMA/4EyF0iBaA2Ux8JaNbTJl3nfWUwu94nP/A 7cRC6q7g95T3upMA5J0IOgw9szETaIlEWFYk5qV95TtJOvhgi5EC9RZ8XEU+xs0KNr/O 1NcmLAqRv88k/CkXVfNja2jW5ur6yLkNQOh0CFewZW5c7qxEBIy2JtI8Yx2AyyFsPWvJ qqDU/y/u5OdMflqfZxAKK/lM/sBBCoLAHwN4lJYG4+H63CrB35hwn0Wyn47fg2ky0UXR C+vB/ieQyNH92uLJdYam8zxGieILPJoPQkqAAT4QLSiiNpvoiQH9DvWTmDT8OBQyXTAV 7TsQ== X-Gm-Message-State: ALoCoQlIOPcpUdT4SSec+rr5Cl5HUncSOBDJEfqYmO1ExLFPzdoLV3mTMFGzrZTkW4zlUrs1YVwt MIME-Version: 1.0 X-Received: by 10.112.168.37 with SMTP id zt5mr2103389lbb.44.1446674088930; Wed, 04 Nov 2015 13:54:48 -0800 (PST) Received: by 10.112.53.42 with HTTP; Wed, 4 Nov 2015 13:54:48 -0800 (PST) In-Reply-To: References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-11-git-send-email-agruenba@redhat.com> Date: Wed, 4 Nov 2015 22:54:48 +0100 Message-ID: Subject: Re: [PATCH v13 10/51] vfs: Cache base_acl objects in inodes From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v13 10/51] vfs: Cache base_acl objects in inodes To: Andreas Dilger Cc: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lb0-f180.google.com[209.85.217.180] X-Barracuda-Start-Time: 1446674090 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24116 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Andreas, On Tue, Nov 3, 2015 at 11:29 PM, Andreas Dilger wrote: > On Nov 3, 2015, at 8:16 AM, Andreas Gruenbacher wrote: >> >> POSIX ACLs and richacls are both objects allocated by kmalloc() with a >> reference count which are freed by kfree_rcu(). An inode can either >> cache an access and a default POSIX ACL, or a richacl (richacls do not >> have default acls). To allow an inode to cache either of the two kinds >> of acls, introduce a new base_acl type and convert i_acl and >> i_default_acl to that type. In most cases, the vfs then doesn't have to >> care which kind of acl an inode caches (if any). > > For new wrapper functions like this better to name them as "NOUN_VERB" so > rather than "VERB_NOUN" so that related functions sort together, like > base_acl_init(), base_acl_get(), base_acl_put(), base_acl_refcount(), etc. That's better, yes. I agree with all your comments and I've changed things accordingly. >> @@ -270,7 +270,7 @@ static struct posix_acl *f2fs_acl_clone(const struct posix_acl *acl, >> sizeof(struct posix_acl_entry); >> clone = kmemdup(acl, size, flags); >> if (clone) >> - atomic_set(&clone->a_refcount, 1); >> + atomic_set(&clone->a_base.ba_refcount, 1); > > This should be base_acl_init() since this should also reset the RCU state > if it was just copied from "acl" above. Yes. The rcu_head doesn't need initializing or resetting though. > That wouldn't be quite correct if > there are other fields added to struct base_acl that don't need to be > initialized when it is copied, so possibly base_acl_reinit() would be better > here and below if that will be the case in the near future (I haven't looked > through the whole patch series yet). We won't need a base_acl_reinit() function for now. >> @@ -25,9 +25,9 @@ struct posix_acl **acl_by_type(struct inode *inode, int type) >> { >> switch (type) { >> case ACL_TYPE_ACCESS: >> - return &inode->i_acl; >> + return (struct posix_acl **)&inode->i_acl; >> case ACL_TYPE_DEFAULT: >> - return &inode->i_default_acl; >> + return (struct posix_acl **)&inode->i_default_acl; > > This would be better to use container_of() to unwrap struct base_acl from > struct posix_acl. That avoids the hard requirement (which isn't documented > anywhere) that base_acl needs to be the first member of struct posix_acl. > > I was originally going to write that you should add a comment that base_acl > needs to be the first member of both richacl and posix_acl, but container_of() > is both cleaner and safer. > > Looking further down, that IS actually needed due to the way kfree is used on > the base_acl pointer, but using container_of() is still cleaner and safer > than directly casting double pointers (which some compilers and static > analysis tools will be unhappy with). Well, we would end up with &container_of() here which doesn't work and doesn't make sense, either. Let me change acl_by_type to return a base_acl ** to clean this up. >> @@ -576,6 +576,12 @@ static inline void mapping_allow_writable(struct address_space *mapping) >> #define i_size_ordered_init(inode) do { } while (0) >> #endif >> >> +struct base_acl { >> + union { >> + atomic_t ba_refcount; >> + struct rcu_head ba_rcu; >> + }; >> +}; >> struct posix_acl; > > Is this forward declaration of struct posix_acl even needed anymore after > the change below? There shouldn't be references to the struct in the common > code anymore (at least not by the end of the patch series. The get_acl and set_acl inode operations expect struct posix_acl to be declared. > Hmm, using the base_acl pointer as the pointer to kfree means that the > base_acl structure DOES need to be the first one in both struct posix_acl > and struct richacl, so that needs to be commented at each structure so > it doesn't accidentally break in the future. Yes. I've added comments; there are also BUILD_BUG_ON() asserts in posix_acl_release and richacl_put. >> @@ -57,7 +57,7 @@ static inline struct richacl * >> richacl_get(struct richacl *acl) >> { >> if (acl) >> - atomic_inc(&acl->a_refcount); >> + atomic_inc(&acl->a_base.ba_refcount); >> return acl; > > This should also use base_acl_get() for consistency. That said, where is > the call to base_acl_put() in the richacl code? > Also, where is the change to struct richacl? It looks like this patch would > not be able to compile by itself. Ah, a little problem in how the patches are split. I've fixed it. This code doesn't get pulled into the build because nothing requires CONFIG_FS_RICHACL at that point; that's why I didn't notice. Thanks, Andreas From agruenba@redhat.com Wed Nov 4 16:10:49 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D49007F4E for ; Wed, 4 Nov 2015 16:10:49 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id B5924304053 for ; Wed, 4 Nov 2015 14:10:46 -0800 (PST) X-ASG-Debug-ID: 1446675043-04cb6c296c26510001-NocioJ Received: from mail-lb0-f176.google.com (mail-lb0-f176.google.com [209.85.217.176]) by cuda.sgi.com with ESMTP id n3QNOlM8hbHG6GKV (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 04 Nov 2015 14:10:44 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.217.176 Received: by lbblt2 with SMTP id lt2so3726551lbb.3 for ; Wed, 04 Nov 2015 14:10:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=ygp3jgQbPLAGLPq1REX2wehuTHOjOU3mLdpD8mf54NI=; b=dypT4c0fPiTegfnNGmzvog9FRzyUonor17cfj75JZHbTqLH1tpPYK1V5xReCFeXjZW kpLTEFuJO87Rk8m/mqtd5Ev+ghXowiA5SixhcQ04gQfKYvYYXeuWGHTrjlJmArqYDuui 4rCzdpGTblqToyem4ezZnqhhfnRAH/otV/i+wRwqP6vkwMWj5xM0sFgBphJ4Tdjz6iIG 8LaOT6PL/xe+e79PvTTGmtmSuiItvYXd1Azj1eTPq5uGF62gXiGj4EEweTcOmBt0riHw bgWnsROERFXic2eAXcE6yn/wxRGZxLiPk3X9uWLmItUajVchLwtm/5nBU82dMCZ4piYD GAfg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=ygp3jgQbPLAGLPq1REX2wehuTHOjOU3mLdpD8mf54NI=; b=ZljUK/DPJ+DKx9O7sLyU94oqURahk+ILFLd034Cr9E/C3nVb7VxVMIAOOtICgzrWZr ieaCsxbx1uBPyBz/Zl3RLxPOX7NVl11/J/4O8K5zCx6d55fKzKbapA1q5HccBY3IUG3h VT59TP4yZVVwW8wH5GlWsQfCJhbSrLZA4vmtcq7Ds4/rwKcRpRBsprr4LWJs/qp6r5om VAtBvWDDxW8rMddi37nmPY8dlXwtl1ATAkYcYeQogxf8V1TuAeey/hmgG9Qd+ypR7gP1 vtam7hpJyg+av7NNIrjWEyTuF3U+Og90ry19sMGkNa8nakpftjVpVwLTjK5w0WUDoH6w CIWA== X-Gm-Message-State: ALoCoQkta++VNFe9YGk76SqBFsW+eJOBVEikVO16biBjtawUqdDVWonXx/afIQ1ypGmv3tcKKU/g MIME-Version: 1.0 X-Received: by 10.112.64.72 with SMTP id m8mr2093953lbs.41.1446675043196; Wed, 04 Nov 2015 14:10:43 -0800 (PST) Received: by 10.112.53.42 with HTTP; Wed, 4 Nov 2015 14:10:43 -0800 (PST) In-Reply-To: <713E53A4-D073-4745-B57D-77AD07E89957@dilger.ca> References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-13-git-send-email-agruenba@redhat.com> <713E53A4-D073-4745-B57D-77AD07E89957@dilger.ca> Date: Wed, 4 Nov 2015 23:10:43 +0100 Message-ID: Subject: Re: [PATCH v13 12/51] vfs: Cache richacl in struct inode From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v13 12/51] vfs: Cache richacl in struct inode To: Andreas Dilger Cc: Alexander Viro , "Theodore Ts'o" , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lb0-f176.google.com[209.85.217.176] X-Barracuda-Start-Time: 1446675044 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24116 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Andreas, On Wed, Nov 4, 2015 at 3:03 AM, Andreas Dilger wrote: >> @@ -33,7 +33,7 @@ richacl_alloc(int count, gfp_t gfp) >> struct richacl *acl = kzalloc(size, gfp); >> >> if (acl) { >> - atomic_set(&acl->a_refcount, 1); >> + atomic_set(&acl->a_base.ba_refcount, 1); >> acl->a_count = count; >> } >> return acl; >> @@ -52,7 +52,7 @@ richacl_clone(const struct richacl *acl, gfp_t gfp) >> >> if (dup) { >> memcpy(dup, acl, size); >> - atomic_set(&dup->a_refcount, 1); >> + atomic_set(&dup->a_base.ba_refcount, 1); > > These two calls should be base_acl_init(). Yes. This should all be fixed in the next snapshot. 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------=_Part_199465_784053254.1446682013075-- From david@fromorbit.com Thu Nov 5 02:33:20 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 47D477FB5 for ; Thu, 5 Nov 2015 02:33:20 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 176878F8049 for ; Thu, 5 Nov 2015 00:33:16 -0800 (PST) X-ASG-Debug-ID: 1446712393-04bdf03f03392d0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id XHzaOWeJ3Q6QTXxq for ; Thu, 05 Nov 2015 00:33:13 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2AhCgDYEztWPHy2LHleKAECgxCBQoZcpBsBAQEBAQEGiy+JLYYMAgIBAQKBM00BAQEBAQEHAQEBAUE/hDUBAQEDAScTHCMFCwgDDgoJJQ8FJQMHGhOIJgfCAgEBCAIBIBmFdIVFhESEdQWWSIgNhQ6cSoJ0HYFqKjSDVoFJAQEB Received: from ppp121-44-182-124.lns20.syd7.internode.on.net (HELO dastard) ([121.44.182.124]) by ipmail06.adl6.internode.on.net with ESMTP; 05 Nov 2015 19:03:10 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZuFyn-0003v0-GF; Thu, 05 Nov 2015 19:33:09 +1100 Date: Thu, 5 Nov 2015 19:33:09 +1100 From: Dave Chinner To: Jeff Moyer Cc: Ross Zwisler , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@ml01.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , axboe@kernel.dk Subject: Re: [RFC 00/11] DAX fsynx/msync support Message-ID: <20151105083309.GJ19199@dastard> X-ASG-Orig-Subj: Re: [RFC 00/11] DAX fsynx/msync support References: <1446149535-16200-1-git-send-email-ross.zwisler@linux.intel.com> <20151030035533.GU19199@dastard> <20151030183938.GC24643@linux.intel.com> <20151101232948.GF10656@dastard> <20151102201029.GI10656@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1446712393 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24128 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- [ sorry for slow response, been without an internet connection for ~36 hours ] On Mon, Nov 02, 2015 at 04:02:48PM -0500, Jeff Moyer wrote: > Dave Chinner writes: > > > On Mon, Nov 02, 2015 at 09:22:15AM -0500, Jeff Moyer wrote: > >> Dave Chinner writes: > >> > >> > Further, REQ_FLUSH/REQ_FUA are more than just "put the data on stable > >> > storage" commands. They are also IO barriers that affect scheduling > >> > of IOs in progress and in the request queues. A REQ_FLUSH/REQ_FUA > >> > IO cannot be dispatched before all prior IO has been dispatched and > >> > drained from the request queue, and IO submitted after a queued > >> > REQ_FLUSH/REQ_FUA cannot be scheduled ahead of the queued > >> > REQ_FLUSH/REQ_FUA operation. > >> > > >> > IOWs, REQ_FUA/REQ_FLUSH not only guarantee data is on stable > >> > storage, they also guarantee the order of IO dispatch and > >> > completion when concurrent IO is in progress. > >> > >> This hasn't been the case for several years, now. It used to work that > >> way, and that was deemed a big performance problem. Since file systems > >> already issued and waited for all I/O before sending down a barrier, we > >> decided to get rid of the I/O ordering pieces of barriers (and stop > >> calling them barriers). > >> > >> See commit 28e7d184521 (block: drop barrier ordering by queue draining). > > > > Yes, I realise that, even if I wasn't very clear about how I wrote > > it. ;) > > > > Correct me if I'm wrong: AFAIA, dispatch ordering (i.e. the "IO > > barrier") is still enforced by the scheduler via REQ_FUA|REQ_FLUSH > > -> ELEVATOR_INSERT_FLUSH -> REQ_SOFTBARRIER and subsequent IO > > scheduler calls to elv_dispatch_sort() that don't pass > > REQ_SOFTBARRIER in the queue. > > This part is right. > > > IOWs, if we queue a bunch of REQ_WRITE IOs followed by a > > REQ_WRITE|REQ_FLUSH IO, all of the prior REQ_WRITE IOs will be > > dispatched before the REQ_WRITE|REQ_FLUSH IO and hence be captured > > by the cache flush. > > But this part is not. It is up to the I/O scheduler to decide when to > dispatch requests. It can hold on to them for a variety of reasons. > Flush requests, however, do not go through the I/O scheduler. At the That's pure REQ_FLUSH bios, right? Aren't data IOs with REQ_FLUSH|REQ_FUA sorted like any other IO? > very moment that the flush request is inserted, it goes directly to the > dispatch queue (assuming no other flush is in progress). The prior > requests may still be waiting in the I/O scheduler's internal lists. > > So, any newly dispatched I/Os will certainly not get past the REQ_FLUSH. > However, the REQ_FLUSH is very likely to jump ahead of prior I/Os in the > queue. Uh, ok, that's different, and most definitely not the "IO barrier" I was under the impression REQ_FLUSH|REQ_FUA gave us. > > Hence once the filesystem has waited on the REQ_WRITE|REQ_FLUSH IO > > to complete, we know that all the earlier REQ_WRITE IOs are on > > stable storage, too. Hence there's no need for the elevator to drain > > the queue to guarantee completion ordering - the dispatch ordering > > and flush/fua write semantics guarantee that when the flush/fua > > completes, all the IOs dispatch prior to that flush/fua write are > > also on stable storage... > > Des xfs rely on this model for correctness? If so, I'd say we've got a > problem No, it doesn't. The XFS integrity model doesn't trust the IO layers to tell the truth about IO ordering and completion or for it's developers to fully understand how IO layer ordering works. :P i.e. we wait for full completions of all dependent IO before issuing flushes or log writes that use REQ_FLUSH|REQ_FUA semantics to ensure the dependent IOs are fully caught by the cache flushes... Cheers, Dave. -- Dave Chinner david@fromorbit.com From agruenba@redhat.com Thu Nov 5 05:07:14 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 422D17FC1 for ; Thu, 5 Nov 2015 05:07:14 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9D9DBAC002 for ; Thu, 5 Nov 2015 03:07:10 -0800 (PST) X-ASG-Debug-ID: 1446721626-04cb6c296d395c0001-NocioJ Received: from mail-lb0-f182.google.com (mail-lb0-f182.google.com [209.85.217.182]) by cuda.sgi.com with ESMTP id qxZUHTWLEP6QuVCy (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 05 Nov 2015 03:07:07 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.217.182 Received: by lbbes7 with SMTP id es7so32680421lbb.2 for ; Thu, 05 Nov 2015 03:07:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=73ighuDmZ4NeGWtHn+xzzZO0m7T0/psa10yE9jbv1/Q=; b=eJpzOh/qMSt3CFaqxEYdp1TPQmGJGuX8STrV9rAnmUBWi5WJjyStP2UqyAAoJEILvc VPlrMa60AVi63zBSZkrrVsuC1Ws2b1m1hoSxtbH2YREYSn528M1Tzm1OkZOtqfzG1Wbh Md9981Ef9Z/fsSy2LjlWNMH3GMBg2a5zYnQEHb9ZcsiWurWlbbszFkysyHlPHNFk2fPm qUZ9sy5GET6o6YMnDNlAAQ9SjmJ5bqhBGtq+Pyc11mUINXKWts70JsUQ0Zhg0uUxLULa Ww0H5UD/dt52Nn3TSe5WEO0MJdeL6gfUWWppTxmq223IfQgXaW2QltBGBnFVV44F4oH1 0j5w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=73ighuDmZ4NeGWtHn+xzzZO0m7T0/psa10yE9jbv1/Q=; b=fYV9K0lYYDgZUttH41daZwr2HiimwTqn7Ai4tJ/Td77EiPSEUEHMwlSCtjHvOGl8Lv szYB87xPrEG6hOcGKJsFgoUKixGe/pzBBZcc8PuXm1tkWU4BEm5/NiMk/Nj5ycHHdoFY lkeRdH2kUttpM5Nh7XbpIurINLUuaqhzrQqSoMvXSRxfaP/whlEZumN39y9kH5tOl/Qp 9slCpM8RKuzbk94Y8snlrEoVkrrF3BJA7dnKAIVgWTo9hEigiwZhb/v3ZrWmWhAW5Biv xpbyUSuf6jEhHBeOLHT6y7TlSri4Z3KLRCAWlmaupIiqfga9SjnzrOpFP5FTbu5mxTCP LRhA== X-Gm-Message-State: ALoCoQnC8oNckTT6B5biIbR03Cz+lBsuFVKdFj5LlBR2XgHhVvFaSyfY/rygUrZpt/Oux6dtpWWE MIME-Version: 1.0 X-Received: by 10.112.205.194 with SMTP id li2mr3380753lbc.75.1446721625486; Thu, 05 Nov 2015 03:07:05 -0800 (PST) Received: by 10.112.53.42 with HTTP; Thu, 5 Nov 2015 03:07:05 -0800 (PST) In-Reply-To: References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-46-git-send-email-agruenba@redhat.com> Date: Thu, 5 Nov 2015 12:07:05 +0100 Message-ID: Subject: Re: [PATCH v13 45/51] sunrpc: Allow to demand-allocate pages to encode into From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v13 45/51] sunrpc: Allow to demand-allocate pages to encode into To: Trond Myklebust Cc: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , Linux Kernel Mailing List , Linux FS-devel Mailing List , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Mailing List Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lb0-f182.google.com[209.85.217.182] X-Barracuda-Start-Time: 1446721626 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24131 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Trond, On Tue, Nov 3, 2015 at 5:25 PM, Trond Myklebust wrote: > On Tue, Nov 3, 2015 at 10:17 AM, Andreas Gruenbacher > wrote: >> When encoding large, variable-length objects such as acls into xdr_bufs, >> it is easier to allocate buffer pages on demand rather than precomputing >> the required buffer size. > > NACK. We're not doing allocations from inside the XDR encoders. This > can and should be done before calling into the SUNRPC layer. an XDR-encoded ACL can be up to 64k (16 pages) in size. In practice, large ACLs like that will almost never occur and almost all ACLs will fit into a single page though. The XDR-encoded ACL contains strings for the user and group names which need to be looked up when the idmapper is used. Those lookups are somewhat expensive; in addition, the lookup results can change over time. When precomputing the size, allocating space, and then encoding the ACL, we could run out of space when encoding. So we could always allocate the maximum 16 pages, encode the acl, and free the unused pages. This would be rather wasteful though. Given how simple it is to allocate pages as we go, this seems the better choice here. This doesn't break any existing code either; NULL page pointers would have oopsed in xdr_get_next_encode_buffer before. >From the memory management point of view, there is no difference in preallocating GFP_NOFS pages and allocating them on demand; the pages are allocated in the same task and locking context in both cases. So could you please explain why you object to this change? Thanks, Andreas From agruenba@redhat.com Thu Nov 5 05:39:55 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 882CE7FC2 for ; Thu, 5 Nov 2015 05:39:55 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7CD4D304053 for ; Thu, 5 Nov 2015 03:39:55 -0800 (PST) X-ASG-Debug-ID: 1446723591-04cbb0242542140001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id hY64vQkQMZLK6UQD (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:39:51 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 36B8C8E694; Thu, 5 Nov 2015 11:39:50 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbb015870; Thu, 5 Nov 2015 06:39:42 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 00/22] Richacls (Core and Ext4) Date: Thu, 5 Nov 2015 12:39:18 +0100 X-ASG-Orig-Subj: [PATCH v14 00/22] Richacls (Core and Ext4) Message-Id: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723591 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Here is another update to the richacl patch queue. This posting contains the patches ready to be merged; the patches later in the queue still need some more review. Changes since the last posting (http://lwn.net/Articles/662881/): * Functions {get,put}_base_acl renamed to base_acl_{get,put}. Functions base_acl_init and base_acl_refcount added and used where appropriate. Better document that struct base_acl must be the first member in an ACL. * Function acl_by_type un-exported and changed to return a struct base_acl pointer. * The "Cache base_acl objects in inodes" and "Cache richacl in struct inode" patches were not perfectly split. * Fix the commit message of "Add richacl feature flag". The complete patch queue is available in git form here: git://git.kernel.org/pub/scm/linux/kernel/git/agruen/linux-richacl.git \ richacl-2015-11-05 The richacl user-space utilitites, man pages, and test suite are available here: https://github.com/andreas-gruenbacher/richacl Changes to other user-space packages for richacl are available here: https://github.com/andreas-gruenbacher/coreutils https://github.com/andreas-gruenbacher/e2fsprogs https://github.com/andreas-gruenbacher/xfsprogs-dev https://github.com/andreas-gruenbacher/nfs-utils Please see the richacl homepage for more information: http://www.bestbits.at/richacl/ Thanks, Andreas Andreas Gruenbacher (20): vfs: Add IS_ACL() and IS_RICHACL() tests vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags vfs: Make the inode passed to inode_change_ok non-const vfs: Add permission flags for setting file attributes richacl: In-memory representation and helper functions richacl: Permission mapping functions richacl: Compute maximum file masks from an acl richacl: Permission check algorithm posix_acl: Unexport acl_by_type and make it static vfs: Cache base_acl objects in inodes vfs: Add get_richacl and set_richacl inode operations vfs: Cache richacl in struct inode richacl: Update the file masks in chmod() richacl: Check if an acl is equivalent to a file mode richacl: Create-time inheritance richacl: Automatic Inheritance richacl: xattr mapping functions richacl: Add richacl xattr handler vfs: Add richacl permission checking Aneesh Kumar K.V (2): ext4: Add richacl support ext4: Add richacl feature flag drivers/staging/lustre/lustre/llite/llite_lib.c | 2 +- fs/Kconfig | 3 + fs/Makefile | 2 + fs/attr.c | 81 +++- fs/ext4/Kconfig | 11 + fs/ext4/Makefile | 1 + fs/ext4/ext4.h | 6 +- fs/ext4/file.c | 3 + fs/ext4/ialloc.c | 11 +- fs/ext4/inode.c | 12 +- fs/ext4/namei.c | 5 + fs/ext4/richacl.c | 142 ++++++ fs/ext4/richacl.h | 40 ++ fs/ext4/super.c | 49 +- fs/ext4/xattr.c | 7 + fs/f2fs/acl.c | 4 +- fs/inode.c | 15 +- fs/jffs2/acl.c | 10 +- fs/namei.c | 111 +++-- fs/posix_acl.c | 50 +-- fs/richacl_base.c | 564 ++++++++++++++++++++++++ fs/richacl_inode.c | 333 ++++++++++++++ fs/richacl_xattr.c | 298 +++++++++++++ fs/xattr.c | 34 +- include/linux/fs.h | 60 ++- include/linux/posix_acl.h | 13 +- include/linux/richacl.h | 208 +++++++++ include/linux/richacl_xattr.h | 44 ++ include/uapi/linux/Kbuild | 2 + include/uapi/linux/fs.h | 3 +- include/uapi/linux/richacl.h | 152 +++++++ include/uapi/linux/richacl_xattr.h | 44 ++ include/uapi/linux/xattr.h | 2 + 33 files changed, 2213 insertions(+), 109 deletions(-) create mode 100644 fs/ext4/richacl.c create mode 100644 fs/ext4/richacl.h create mode 100644 fs/richacl_base.c create mode 100644 fs/richacl_inode.c create mode 100644 fs/richacl_xattr.c create mode 100644 include/linux/richacl.h create mode 100644 include/linux/richacl_xattr.h create mode 100644 include/uapi/linux/richacl.h create mode 100644 include/uapi/linux/richacl_xattr.h -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:40:02 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 31B1C7FD6 for ; Thu, 5 Nov 2015 05:40:02 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 065228F8035 for ; Thu, 5 Nov 2015 03:39:58 -0800 (PST) X-ASG-Debug-ID: 1446723597-04bdf03f033dac0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id eF8z4E3lKkgXLNGt (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:39:57 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 16EA68E361; Thu, 5 Nov 2015 11:39:57 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbc015870; Thu, 5 Nov 2015 06:39:50 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 01/22] vfs: Add IS_ACL() and IS_RICHACL() tests Date: Thu, 5 Nov 2015 12:39:19 +0100 X-ASG-Orig-Subj: [PATCH v14 01/22] vfs: Add IS_ACL() and IS_RICHACL() tests Message-Id: <1446723580-3747-2-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723597 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The vfs does not apply the umask for file systems that support acls. The test used for this used to be called IS_POSIXACL(). Switch to a new IS_ACL() test to check for either posix acls or richacls instead. Add a new MS_RICHACL flag and IS_RICHACL() test for richacls alone. The IS_POSIXACL() test is still needed by nfsd. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/Kconfig | 3 +++ fs/namei.c | 8 ++++---- include/linux/fs.h | 12 ++++++++++++ include/uapi/linux/fs.h | 3 ++- 4 files changed, 21 insertions(+), 5 deletions(-) diff --git a/fs/Kconfig b/fs/Kconfig index da3f32f..bff2879 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -56,6 +56,9 @@ endif # BLOCK config FS_POSIX_ACL def_bool n +config FS_RICHACL + def_bool n + config EXPORTFS tristate diff --git a/fs/namei.c b/fs/namei.c index 33e9495..224ecf1 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2798,7 +2798,7 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, } mode = op->mode; - if ((open_flag & O_CREAT) && !IS_POSIXACL(dir)) + if ((open_flag & O_CREAT) && !IS_ACL(dir)) mode &= ~current_umask(); excl = (open_flag & (O_EXCL | O_CREAT)) == (O_EXCL | O_CREAT); @@ -2982,7 +2982,7 @@ static int lookup_open(struct nameidata *nd, struct path *path, /* Negative dentry, just create the file */ if (!dentry->d_inode && (op->open_flag & O_CREAT)) { umode_t mode = op->mode; - if (!IS_POSIXACL(dir->d_inode)) + if (!IS_ACL(dir->d_inode)) mode &= ~current_umask(); /* * This write is needed to ensure that a @@ -3553,7 +3553,7 @@ retry: if (IS_ERR(dentry)) return PTR_ERR(dentry); - if (!IS_POSIXACL(path.dentry->d_inode)) + if (!IS_ACL(path.dentry->d_inode)) mode &= ~current_umask(); error = security_path_mknod(&path, dentry, mode, dev); if (error) @@ -3622,7 +3622,7 @@ retry: if (IS_ERR(dentry)) return PTR_ERR(dentry); - if (!IS_POSIXACL(path.dentry->d_inode)) + if (!IS_ACL(path.dentry->d_inode)) mode &= ~current_umask(); error = security_path_mkdir(&path, dentry, mode); if (!error) diff --git a/include/linux/fs.h b/include/linux/fs.h index 72d8a84..4efa435 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1781,6 +1781,12 @@ struct super_operations { #define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE) #define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL) +#ifdef CONFIG_FS_RICHACL +#define IS_RICHACL(inode) __IS_FLG(inode, MS_RICHACL) +#else +#define IS_RICHACL(inode) 0 +#endif + #define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD) #define IS_NOCMTIME(inode) ((inode)->i_flags & S_NOCMTIME) #define IS_SWAPFILE(inode) ((inode)->i_flags & S_SWAPFILE) @@ -1794,6 +1800,12 @@ struct super_operations { (inode)->i_rdev == WHITEOUT_DEV) /* + * IS_ACL() tells the VFS to not apply the umask + * and use check_acl for acl permission checks when defined. + */ +#define IS_ACL(inode) __IS_FLG(inode, MS_POSIXACL | MS_RICHACL) + +/* * Inode state bits. Protected by inode->i_lock * * Three bits determine the dirty state of the inode, I_DIRTY_SYNC, diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index 9b964a5..6ac6bc9 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -81,7 +81,7 @@ struct inodes_stat_t { #define MS_VERBOSE 32768 /* War is peace. Verbosity is silence. MS_VERBOSE is deprecated. */ #define MS_SILENT 32768 -#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */ +#define MS_POSIXACL (1<<16) /* Supports POSIX ACLs */ #define MS_UNBINDABLE (1<<17) /* change to unbindable */ #define MS_PRIVATE (1<<18) /* change to private */ #define MS_SLAVE (1<<19) /* change to slave */ @@ -91,6 +91,7 @@ struct inodes_stat_t { #define MS_I_VERSION (1<<23) /* Update inode I_version field */ #define MS_STRICTATIME (1<<24) /* Always perform atime updates */ #define MS_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */ +#define MS_RICHACL (1<<26) /* Supports richacls */ /* These sb flags are internal to the kernel */ #define MS_NOSEC (1<<28) -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:40:05 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id EB0F17FE7 for ; Thu, 5 Nov 2015 05:40:05 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id DE2BF304059 for ; Thu, 5 Nov 2015 03:40:05 -0800 (PST) X-ASG-Debug-ID: 1446723604-04cbb02424421c0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id FpuJ6LuhoawckAYK (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:40:04 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 0ED10C0032EA; Thu, 5 Nov 2015 11:40:04 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbd015870; Thu, 5 Nov 2015 06:39:57 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 02/22] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Date: Thu, 5 Nov 2015 12:39:20 +0100 X-ASG-Orig-Subj: [PATCH v14 02/22] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Message-Id: <1446723580-3747-3-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723604 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Richacls distinguish between creating non-directories and directories. To support that, add an isdir parameter to may_create(). When checking inode_permission() for create permission, pass in an additional MAY_CREATE_FILE or MAY_CREATE_DIR mask flag. To allow checking for delete *and* create access when replacing an existing file via vfs_rename(), add a replace parameter to may_delete(). Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/namei.c | 43 +++++++++++++++++++++++++------------------ include/linux/fs.h | 2 ++ 2 files changed, 27 insertions(+), 18 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 224ecf1..0259392 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -453,7 +453,9 @@ static int sb_permission(struct super_block *sb, struct inode *inode, int mask) * this, letting us set arbitrary permissions for filesystem access without * changing the "normal" UIDs which are used for other things. * - * When checking for MAY_APPEND, MAY_WRITE must also be set in @mask. + * MAY_WRITE must be set in @mask whenever MAY_APPEND, MAY_CREATE_FILE, or + * MAY_CREATE_DIR are set. That way, file systems that don't support these + * permissions will check for MAY_WRITE instead. */ int inode_permission(struct inode *inode, int mask) { @@ -2549,10 +2551,11 @@ EXPORT_SYMBOL(__check_sticky); * 10. We don't allow removal of NFS sillyrenamed files; it's handled by * nfs_async_unlink(). */ -static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) +static int may_delete(struct inode *dir, struct dentry *victim, + bool isdir, bool replace) { struct inode *inode = d_backing_inode(victim); - int error; + int error, mask = MAY_WRITE | MAY_EXEC; if (d_is_negative(victim)) return -ENOENT; @@ -2561,7 +2564,9 @@ static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) BUG_ON(victim->d_parent->d_inode != dir); audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); - error = inode_permission(dir, MAY_WRITE | MAY_EXEC); + if (replace) + mask |= isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; + error = inode_permission(dir, mask); if (error) return error; if (IS_APPEND(dir)) @@ -2592,14 +2597,16 @@ static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) * 3. We should have write and exec permissions on dir * 4. We can't do it if dir is immutable (done in permission()) */ -static inline int may_create(struct inode *dir, struct dentry *child) +static inline int may_create(struct inode *dir, struct dentry *child, bool isdir) { + int mask = isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; + audit_inode_child(dir, child, AUDIT_TYPE_CHILD_CREATE); if (child->d_inode) return -EEXIST; if (IS_DEADDIR(dir)) return -ENOENT; - return inode_permission(dir, MAY_WRITE | MAY_EXEC); + return inode_permission(dir, MAY_WRITE | MAY_EXEC | mask); } /* @@ -2649,7 +2656,7 @@ EXPORT_SYMBOL(unlock_rename); int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool want_excl) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; @@ -3494,7 +3501,7 @@ EXPORT_SYMBOL(user_path_create); int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; @@ -3586,7 +3593,7 @@ SYSCALL_DEFINE3(mknod, const char __user *, filename, umode_t, mode, unsigned, d int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, true); unsigned max_links = dir->i_sb->s_max_links; if (error) @@ -3667,7 +3674,7 @@ EXPORT_SYMBOL(dentry_unhash); int vfs_rmdir(struct inode *dir, struct dentry *dentry) { - int error = may_delete(dir, dentry, 1); + int error = may_delete(dir, dentry, true, false); if (error) return error; @@ -3789,7 +3796,7 @@ SYSCALL_DEFINE1(rmdir, const char __user *, pathname) int vfs_unlink(struct inode *dir, struct dentry *dentry, struct inode **delegated_inode) { struct inode *target = dentry->d_inode; - int error = may_delete(dir, dentry, 0); + int error = may_delete(dir, dentry, false, false); if (error) return error; @@ -3923,7 +3930,7 @@ SYSCALL_DEFINE1(unlink, const char __user *, pathname) int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; @@ -4006,7 +4013,7 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de if (!inode) return -ENOENT; - error = may_create(dir, new_dentry); + error = may_create(dir, new_dentry, false); if (error) return error; @@ -4194,19 +4201,19 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry, if (source == target) return 0; - error = may_delete(old_dir, old_dentry, is_dir); + error = may_delete(old_dir, old_dentry, is_dir, false); if (error) return error; if (!target) { - error = may_create(new_dir, new_dentry); + error = may_create(new_dir, new_dentry, is_dir); } else { new_is_dir = d_is_dir(new_dentry); if (!(flags & RENAME_EXCHANGE)) - error = may_delete(new_dir, new_dentry, is_dir); + error = may_delete(new_dir, new_dentry, is_dir, true); else - error = may_delete(new_dir, new_dentry, new_is_dir); + error = may_delete(new_dir, new_dentry, new_is_dir, true); } if (error) return error; @@ -4469,7 +4476,7 @@ SYSCALL_DEFINE2(rename, const char __user *, oldname, const char __user *, newna int vfs_whiteout(struct inode *dir, struct dentry *dentry) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; diff --git a/include/linux/fs.h b/include/linux/fs.h index 4efa435..d6e2330 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -82,6 +82,8 @@ typedef void (dax_iodone_t)(struct buffer_head *bh_map, int uptodate); #define MAY_CHDIR 0x00000040 /* called from RCU mode, don't block */ #define MAY_NOT_BLOCK 0x00000080 +#define MAY_CREATE_FILE 0x00000100 +#define MAY_CREATE_DIR 0x00000200 /* * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:40:13 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6F7BC7FC2 for ; Thu, 5 Nov 2015 05:40:13 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id CDFFCAC002 for ; Thu, 5 Nov 2015 03:40:12 -0800 (PST) X-ASG-Debug-ID: 1446723611-04cb6c296a3a1b0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 8cNrSEKaPng6ZbmR (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:40:11 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id E74C09246C; Thu, 5 Nov 2015 11:40:10 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbe015870; Thu, 5 Nov 2015 06:40:04 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 03/22] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags Date: Thu, 5 Nov 2015 12:39:21 +0100 X-ASG-Orig-Subj: [PATCH v14 03/22] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags Message-Id: <1446723580-3747-4-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723611 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Normally, deleting a file requires MAY_WRITE access to the parent directory. With richacls, a file may be deleted with MAY_DELETE_CHILD access to the parent directory or with MAY_DELETE_SELF access to the file. To support that, pass the MAY_DELETE_CHILD mask flag to inode_permission() when checking for delete access inside a directory, and MAY_DELETE_SELF when checking for delete access to a file itelf. The MAY_DELETE_SELF permission overrides the sticky directory check. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/namei.c | 21 ++++++++++++--------- include/linux/fs.h | 2 ++ 2 files changed, 14 insertions(+), 9 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 0259392..2eab19e 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -453,9 +453,9 @@ static int sb_permission(struct super_block *sb, struct inode *inode, int mask) * this, letting us set arbitrary permissions for filesystem access without * changing the "normal" UIDs which are used for other things. * - * MAY_WRITE must be set in @mask whenever MAY_APPEND, MAY_CREATE_FILE, or - * MAY_CREATE_DIR are set. That way, file systems that don't support these - * permissions will check for MAY_WRITE instead. + * MAY_WRITE must be set in @mask whenever MAY_APPEND, MAY_CREATE_FILE, + * MAY_CREATE_DIR, or MAY_DELETE_CHILD are set. That way, file systems that + * don't support these permissions will check for MAY_WRITE instead. */ int inode_permission(struct inode *inode, int mask) { @@ -2555,7 +2555,7 @@ static int may_delete(struct inode *dir, struct dentry *victim, bool isdir, bool replace) { struct inode *inode = d_backing_inode(victim); - int error, mask = MAY_WRITE | MAY_EXEC; + int error, mask = MAY_EXEC; if (d_is_negative(victim)) return -ENOENT; @@ -2565,15 +2565,18 @@ static int may_delete(struct inode *dir, struct dentry *victim, audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); if (replace) - mask |= isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; - error = inode_permission(dir, mask); + mask |= MAY_WRITE | (isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE); + error = inode_permission(dir, mask | MAY_WRITE | MAY_DELETE_CHILD); + if (!error && check_sticky(dir, inode)) + error = -EPERM; + if (error && IS_RICHACL(inode) && + inode_permission(inode, MAY_DELETE_SELF) == 0) + error = 0; if (error) return error; if (IS_APPEND(dir)) return -EPERM; - - if (check_sticky(dir, inode) || IS_APPEND(inode) || - IS_IMMUTABLE(inode) || IS_SWAPFILE(inode)) + if (IS_APPEND(inode) || IS_IMMUTABLE(inode) || IS_SWAPFILE(inode)) return -EPERM; if (isdir) { if (!d_is_dir(victim)) diff --git a/include/linux/fs.h b/include/linux/fs.h index d6e2330..402acd7 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -84,6 +84,8 @@ typedef void (dax_iodone_t)(struct buffer_head *bh_map, int uptodate); #define MAY_NOT_BLOCK 0x00000080 #define MAY_CREATE_FILE 0x00000100 #define MAY_CREATE_DIR 0x00000200 +#define MAY_DELETE_CHILD 0x00000400 +#define MAY_DELETE_SELF 0x00000800 /* * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:40:19 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 26DAB7FDF for ; Thu, 5 Nov 2015 05:40:19 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1AB2B304051 for ; Thu, 5 Nov 2015 03:40:19 -0800 (PST) X-ASG-Debug-ID: 1446723617-04cbb0242342230001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id XEGHLlkm7ZgOEfik (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:40:18 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id B2C69935F5; Thu, 5 Nov 2015 11:40:17 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbf015870; Thu, 5 Nov 2015 06:40:11 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 04/22] vfs: Make the inode passed to inode_change_ok non-const Date: Thu, 5 Nov 2015 12:39:22 +0100 X-ASG-Orig-Subj: [PATCH v14 04/22] vfs: Make the inode passed to inode_change_ok non-const Message-Id: <1446723580-3747-5-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723618 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 We will need to call iop->permission and iop->get_acl from inode_change_ok() for additional permission checks, and both take a non-const inode. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/attr.c | 2 +- include/linux/fs.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/attr.c b/fs/attr.c index 6530ced..328be71 100644 --- a/fs/attr.c +++ b/fs/attr.c @@ -28,7 +28,7 @@ * Should be called as the first thing in ->setattr implementations, * possibly after taking additional locks. */ -int inode_change_ok(const struct inode *inode, struct iattr *attr) +int inode_change_ok(struct inode *inode, struct iattr *attr) { unsigned int ia_valid = attr->ia_valid; diff --git a/include/linux/fs.h b/include/linux/fs.h index 402acd7..aab32c8 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2871,7 +2871,7 @@ extern int buffer_migrate_page(struct address_space *, #define buffer_migrate_page NULL #endif -extern int inode_change_ok(const struct inode *, struct iattr *); +extern int inode_change_ok(struct inode *, struct iattr *); extern int inode_newsize_ok(const struct inode *, loff_t offset); extern void setattr_copy(struct inode *inode, const struct iattr *attr); -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:40:26 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7B8C77FC2 for ; Thu, 5 Nov 2015 05:40:26 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 15D56AC002 for ; Thu, 5 Nov 2015 03:40:25 -0800 (PST) X-ASG-Debug-ID: 1446723624-04bdf03f053db10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 2GHjiM6D8DTjjUag (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:40:25 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 9FE3319CBD1; Thu, 5 Nov 2015 11:40:24 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbg015870; Thu, 5 Nov 2015 06:40:18 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 05/22] vfs: Add permission flags for setting file attributes Date: Thu, 5 Nov 2015 12:39:23 +0100 X-ASG-Orig-Subj: [PATCH v14 05/22] vfs: Add permission flags for setting file attributes Message-Id: <1446723580-3747-6-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723625 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Richacls support permissions that allow to take ownership of a file, change the file permissions, and set the file timestamps. Support that by introducing new permission mask flags and by checking for those mask flags in inode_change_ok(). Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/attr.c | 79 +++++++++++++++++++++++++++++++++++++++++++++--------- include/linux/fs.h | 3 +++ 2 files changed, 70 insertions(+), 12 deletions(-) diff --git a/fs/attr.c b/fs/attr.c index 328be71..85483e0 100644 --- a/fs/attr.c +++ b/fs/attr.c @@ -17,6 +17,65 @@ #include /** + * inode_extended_permission - permissions beyond read/write/execute + * + * Check for permissions that only richacls can currently grant. + */ +static int inode_extended_permission(struct inode *inode, int mask) +{ + if (!IS_RICHACL(inode)) + return -EPERM; + return inode_permission(inode, mask); +} + +static bool inode_uid_change_ok(struct inode *inode, kuid_t ia_uid) +{ + if (uid_eq(current_fsuid(), inode->i_uid) && + uid_eq(ia_uid, inode->i_uid)) + return true; + if (uid_eq(current_fsuid(), ia_uid) && + inode_extended_permission(inode, MAY_TAKE_OWNERSHIP) == 0) + return true; + if (capable_wrt_inode_uidgid(inode, CAP_CHOWN)) + return true; + return false; +} + +static bool inode_gid_change_ok(struct inode *inode, kgid_t ia_gid) +{ + int in_group = in_group_p(ia_gid); + if (uid_eq(current_fsuid(), inode->i_uid) && + (in_group || gid_eq(ia_gid, inode->i_gid))) + return true; + if (in_group && inode_extended_permission(inode, MAY_TAKE_OWNERSHIP) == 0) + return true; + if (capable_wrt_inode_uidgid(inode, CAP_CHOWN)) + return true; + return false; +} + +/** + * inode_owner_permitted_or_capable + * + * Check for permissions implicitly granted to the owner, like MAY_CHMOD or + * MAY_SET_TIMES. Equivalent to inode_owner_or_capable for file systems + * without support for those permissions. + */ +static bool inode_owner_permitted_or_capable(struct inode *inode, int mask) +{ + struct user_namespace *ns; + + if (uid_eq(current_fsuid(), inode->i_uid)) + return true; + if (inode_extended_permission(inode, mask) == 0) + return true; + ns = current_user_ns(); + if (ns_capable(ns, CAP_FOWNER) && kuid_has_mapping(ns, inode->i_uid)) + return true; + return false; +} + +/** * inode_change_ok - check if attribute changes to an inode are allowed * @inode: inode to check * @attr: attributes to change @@ -47,22 +106,18 @@ int inode_change_ok(struct inode *inode, struct iattr *attr) return 0; /* Make sure a caller can chown. */ - if ((ia_valid & ATTR_UID) && - (!uid_eq(current_fsuid(), inode->i_uid) || - !uid_eq(attr->ia_uid, inode->i_uid)) && - !capable_wrt_inode_uidgid(inode, CAP_CHOWN)) - return -EPERM; + if (ia_valid & ATTR_UID) + if (!inode_uid_change_ok(inode, attr->ia_uid)) + return -EPERM; /* Make sure caller can chgrp. */ - if ((ia_valid & ATTR_GID) && - (!uid_eq(current_fsuid(), inode->i_uid) || - (!in_group_p(attr->ia_gid) && !gid_eq(attr->ia_gid, inode->i_gid))) && - !capable_wrt_inode_uidgid(inode, CAP_CHOWN)) - return -EPERM; + if (ia_valid & ATTR_GID) + if (!inode_gid_change_ok(inode, attr->ia_gid)) + return -EPERM; /* Make sure a caller can chmod. */ if (ia_valid & ATTR_MODE) { - if (!inode_owner_or_capable(inode)) + if (!inode_owner_permitted_or_capable(inode, MAY_CHMOD)) return -EPERM; /* Also check the setgid bit! */ if (!in_group_p((ia_valid & ATTR_GID) ? attr->ia_gid : @@ -73,7 +128,7 @@ int inode_change_ok(struct inode *inode, struct iattr *attr) /* Check for setting the inode time. */ if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)) { - if (!inode_owner_or_capable(inode)) + if (!inode_owner_permitted_or_capable(inode, MAY_SET_TIMES)) return -EPERM; } diff --git a/include/linux/fs.h b/include/linux/fs.h index aab32c8..ba91a89 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -86,6 +86,9 @@ typedef void (dax_iodone_t)(struct buffer_head *bh_map, int uptodate); #define MAY_CREATE_DIR 0x00000200 #define MAY_DELETE_CHILD 0x00000400 #define MAY_DELETE_SELF 0x00000800 +#define MAY_TAKE_OWNERSHIP 0x00001000 +#define MAY_CHMOD 0x00002000 +#define MAY_SET_TIMES 0x00004000 /* * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:40:34 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 143357FC2 for ; Thu, 5 Nov 2015 05:40:34 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id E956E304053 for ; Thu, 5 Nov 2015 03:40:33 -0800 (PST) X-ASG-Debug-ID: 1446723631-04cb6c296b3a1e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 6CUorH0IJGBdOjgC (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:40:32 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 7E3E48E39D; Thu, 5 Nov 2015 11:40:31 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbh015870; Thu, 5 Nov 2015 06:40:25 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 06/22] richacl: In-memory representation and helper functions Date: Thu, 5 Nov 2015 12:39:24 +0100 X-ASG-Orig-Subj: [PATCH v14 06/22] richacl: In-memory representation and helper functions Message-Id: <1446723580-3747-7-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723632 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 A richacl consists of an NFSv4 acl and an owner, group, and other mask. These three masks correspond to the owner, group, and other file permission bits, but they contain NFSv4 permissions instead of POSIX permissions. Each entry in the NFSv4 acl applies to the file owner (OWNER@), the owning group (GROUP@), everyone (EVERYONE@), or to a specific uid or gid. As in the standard POSIX file permission model, each process is the owner, group, or other file class. A richacl grants a requested access only if the NFSv4 acl in the richacl grants the access (according to the NFSv4 permission check algorithm), and the file mask that applies to the process includes the requested permissions. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/Makefile | 2 + fs/richacl_base.c | 67 ++++++++++++++++ include/linux/richacl.h | 179 +++++++++++++++++++++++++++++++++++++++++++ include/uapi/linux/Kbuild | 1 + include/uapi/linux/richacl.h | 99 ++++++++++++++++++++++++ 5 files changed, 348 insertions(+) create mode 100644 fs/richacl_base.c create mode 100644 include/linux/richacl.h create mode 100644 include/uapi/linux/richacl.h diff --git a/fs/Makefile b/fs/Makefile index f79cf40..fe3e9dd 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -48,6 +48,8 @@ obj-$(CONFIG_COREDUMP) += coredump.o obj-$(CONFIG_SYSCTL) += drop_caches.o obj-$(CONFIG_FHANDLE) += fhandle.o +obj-$(CONFIG_FS_RICHACL) += richacl.o +richacl-y := richacl_base.o obj-y += quota/ diff --git a/fs/richacl_base.c b/fs/richacl_base.c new file mode 100644 index 0000000..c3ec928 --- /dev/null +++ b/fs/richacl_base.c @@ -0,0 +1,67 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include + +MODULE_LICENSE("GPL"); + +/** + * richacl_alloc - allocate a richacl + * @count: number of entries + */ +struct richacl * +richacl_alloc(int count, gfp_t gfp) +{ + size_t size = sizeof(struct richacl) + count * sizeof(struct richace); + struct richacl *acl = kzalloc(size, gfp); + + if (acl) { + atomic_set(&acl->a_refcount, 1); + acl->a_count = count; + } + return acl; +} +EXPORT_SYMBOL_GPL(richacl_alloc); + +/** + * richacl_clone - create a copy of a richacl + */ +struct richacl * +richacl_clone(const struct richacl *acl, gfp_t gfp) +{ + int count = acl->a_count; + size_t size = sizeof(struct richacl) + count * sizeof(struct richace); + struct richacl *dup = kmalloc(size, gfp); + + if (dup) { + memcpy(dup, acl, size); + atomic_set(&dup->a_refcount, 1); + } + return dup; +} + +/** + * richace_copy - copy an acl entry + */ +void +richace_copy(struct richace *to, const struct richace *from) +{ + memcpy(to, from, sizeof(struct richace)); +} diff --git a/include/linux/richacl.h b/include/linux/richacl.h new file mode 100644 index 0000000..edb8480 --- /dev/null +++ b/include/linux/richacl.h @@ -0,0 +1,179 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#ifndef __RICHACL_H +#define __RICHACL_H + +#include + +struct richace { + unsigned short e_type; + unsigned short e_flags; + unsigned int e_mask; + union { + kuid_t uid; + kgid_t gid; + unsigned int special; + } e_id; +}; + +struct richacl { + atomic_t a_refcount; + unsigned int a_owner_mask; + unsigned int a_group_mask; + unsigned int a_other_mask; + unsigned short a_count; + unsigned short a_flags; + struct richace a_entries[0]; +}; + +#define richacl_for_each_entry(_ace, _acl) \ + for (_ace = (_acl)->a_entries; \ + _ace != (_acl)->a_entries + (_acl)->a_count; \ + _ace++) + +#define richacl_for_each_entry_reverse(_ace, _acl) \ + for (_ace = (_acl)->a_entries + (_acl)->a_count - 1; \ + _ace != (_acl)->a_entries - 1; \ + _ace--) + +/** + * richacl_get - grab another reference to a richacl handle + */ +static inline struct richacl * +richacl_get(struct richacl *acl) +{ + if (acl) + atomic_inc(&acl->a_refcount); + return acl; +} + +/** + * richacl_put - free a richacl handle + */ +static inline void +richacl_put(struct richacl *acl) +{ + if (acl && atomic_dec_and_test(&acl->a_refcount)) + kfree(acl); +} + +/** + * richace_is_owner - check if @ace is an OWNER@ entry + */ +static inline bool +richace_is_owner(const struct richace *ace) +{ + return (ace->e_flags & RICHACE_SPECIAL_WHO) && + ace->e_id.special == RICHACE_OWNER_SPECIAL_ID; +} + +/** + * richace_is_group - check if @ace is a GROUP@ entry + */ +static inline bool +richace_is_group(const struct richace *ace) +{ + return (ace->e_flags & RICHACE_SPECIAL_WHO) && + ace->e_id.special == RICHACE_GROUP_SPECIAL_ID; +} + +/** + * richace_is_everyone - check if @ace is an EVERYONE@ entry + */ +static inline bool +richace_is_everyone(const struct richace *ace) +{ + return (ace->e_flags & RICHACE_SPECIAL_WHO) && + ace->e_id.special == RICHACE_EVERYONE_SPECIAL_ID; +} + +/** + * richace_is_unix_user - check if @ace applies to a specific user + */ +static inline bool +richace_is_unix_user(const struct richace *ace) +{ + return !(ace->e_flags & RICHACE_SPECIAL_WHO) && + !(ace->e_flags & RICHACE_IDENTIFIER_GROUP); +} + +/** + * richace_is_unix_group - check if @ace applies to a specific group + */ +static inline bool +richace_is_unix_group(const struct richace *ace) +{ + return !(ace->e_flags & RICHACE_SPECIAL_WHO) && + (ace->e_flags & RICHACE_IDENTIFIER_GROUP); +} + +/** + * richace_is_inherit_only - check if @ace is for inheritance only + * + * ACEs with the %RICHACE_INHERIT_ONLY_ACE flag set have no effect during + * permission checking. + */ +static inline bool +richace_is_inherit_only(const struct richace *ace) +{ + return ace->e_flags & RICHACE_INHERIT_ONLY_ACE; +} + +/** + * richace_is_inheritable - check if @ace is inheritable + */ +static inline bool +richace_is_inheritable(const struct richace *ace) +{ + return ace->e_flags & (RICHACE_FILE_INHERIT_ACE | + RICHACE_DIRECTORY_INHERIT_ACE); +} + +/** + * richace_is_allow - check if @ace is an %ALLOW type entry + */ +static inline bool +richace_is_allow(const struct richace *ace) +{ + return ace->e_type == RICHACE_ACCESS_ALLOWED_ACE_TYPE; +} + +/** + * richace_is_deny - check if @ace is a %DENY type entry + */ +static inline bool +richace_is_deny(const struct richace *ace) +{ + return ace->e_type == RICHACE_ACCESS_DENIED_ACE_TYPE; +} + +/** + * richace_is_same_identifier - are both identifiers the same? + */ +static inline bool +richace_is_same_identifier(const struct richace *a, const struct richace *b) +{ + return !((a->e_flags ^ b->e_flags) & + (RICHACE_SPECIAL_WHO | RICHACE_IDENTIFIER_GROUP)) && + !memcmp(&a->e_id, &b->e_id, sizeof(a->e_id)); +} + +extern struct richacl *richacl_alloc(int, gfp_t); +extern struct richacl *richacl_clone(const struct richacl *, gfp_t); +extern void richace_copy(struct richace *, const struct richace *); + +#endif /* __RICHACL_H */ diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild index f7b2db4..8c82010 100644 --- a/include/uapi/linux/Kbuild +++ b/include/uapi/linux/Kbuild @@ -348,6 +348,7 @@ header-y += reboot.h header-y += reiserfs_fs.h header-y += reiserfs_xattr.h header-y += resource.h +header-y += richacl.h header-y += rfkill.h header-y += romfs_fs.h header-y += rose.h diff --git a/include/uapi/linux/richacl.h b/include/uapi/linux/richacl.h new file mode 100644 index 0000000..08856f8 --- /dev/null +++ b/include/uapi/linux/richacl.h @@ -0,0 +1,99 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + */ + +#ifndef __UAPI_RICHACL_H +#define __UAPI_RICHACL_H + +/* a_flags values */ +#define RICHACL_WRITE_THROUGH 0x40 +#define RICHACL_MASKED 0x80 + +/* e_type values */ +#define RICHACE_ACCESS_ALLOWED_ACE_TYPE 0x0000 +#define RICHACE_ACCESS_DENIED_ACE_TYPE 0x0001 + +/* e_flags bitflags */ +#define RICHACE_FILE_INHERIT_ACE 0x0001 +#define RICHACE_DIRECTORY_INHERIT_ACE 0x0002 +#define RICHACE_NO_PROPAGATE_INHERIT_ACE 0x0004 +#define RICHACE_INHERIT_ONLY_ACE 0x0008 +#define RICHACE_IDENTIFIER_GROUP 0x0040 +#define RICHACE_SPECIAL_WHO 0x4000 + +/* e_mask bitflags */ +#define RICHACE_READ_DATA 0x00000001 +#define RICHACE_LIST_DIRECTORY 0x00000001 +#define RICHACE_WRITE_DATA 0x00000002 +#define RICHACE_ADD_FILE 0x00000002 +#define RICHACE_APPEND_DATA 0x00000004 +#define RICHACE_ADD_SUBDIRECTORY 0x00000004 +#define RICHACE_READ_NAMED_ATTRS 0x00000008 +#define RICHACE_WRITE_NAMED_ATTRS 0x00000010 +#define RICHACE_EXECUTE 0x00000020 +#define RICHACE_DELETE_CHILD 0x00000040 +#define RICHACE_READ_ATTRIBUTES 0x00000080 +#define RICHACE_WRITE_ATTRIBUTES 0x00000100 +#define RICHACE_WRITE_RETENTION 0x00000200 +#define RICHACE_WRITE_RETENTION_HOLD 0x00000400 +#define RICHACE_DELETE 0x00010000 +#define RICHACE_READ_ACL 0x00020000 +#define RICHACE_WRITE_ACL 0x00040000 +#define RICHACE_WRITE_OWNER 0x00080000 +#define RICHACE_SYNCHRONIZE 0x00100000 + +/* e_id values */ +#define RICHACE_OWNER_SPECIAL_ID 0 +#define RICHACE_GROUP_SPECIAL_ID 1 +#define RICHACE_EVERYONE_SPECIAL_ID 2 + +#define RICHACL_VALID_FLAGS ( \ + RICHACL_WRITE_THROUGH | \ + RICHACL_MASKED ) + +#define RICHACE_VALID_FLAGS ( \ + RICHACE_FILE_INHERIT_ACE | \ + RICHACE_DIRECTORY_INHERIT_ACE | \ + RICHACE_NO_PROPAGATE_INHERIT_ACE | \ + RICHACE_INHERIT_ONLY_ACE | \ + RICHACE_IDENTIFIER_GROUP | \ + RICHACE_SPECIAL_WHO ) + +#define RICHACE_INHERITANCE_FLAGS ( \ + RICHACE_FILE_INHERIT_ACE | \ + RICHACE_DIRECTORY_INHERIT_ACE | \ + RICHACE_NO_PROPAGATE_INHERIT_ACE | \ + RICHACE_INHERIT_ONLY_ACE ) + +/* Valid RICHACE_* flags for directories and non-directories */ +#define RICHACE_VALID_MASK ( \ + RICHACE_READ_DATA | RICHACE_LIST_DIRECTORY | \ + RICHACE_WRITE_DATA | RICHACE_ADD_FILE | \ + RICHACE_APPEND_DATA | RICHACE_ADD_SUBDIRECTORY | \ + RICHACE_READ_NAMED_ATTRS | \ + RICHACE_WRITE_NAMED_ATTRS | \ + RICHACE_EXECUTE | \ + RICHACE_DELETE_CHILD | \ + RICHACE_READ_ATTRIBUTES | \ + RICHACE_WRITE_ATTRIBUTES | \ + RICHACE_WRITE_RETENTION | \ + RICHACE_WRITE_RETENTION_HOLD | \ + RICHACE_DELETE | \ + RICHACE_READ_ACL | \ + RICHACE_WRITE_ACL | \ + RICHACE_WRITE_OWNER | \ + RICHACE_SYNCHRONIZE ) + +#endif /* __UAPI_RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:40:40 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5A95F7FC2 for ; Thu, 5 Nov 2015 05:40:40 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4C6548F8035 for ; Thu, 5 Nov 2015 03:40:40 -0800 (PST) X-ASG-Debug-ID: 1446723638-04cb6c296a3a1e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ydsJzNnw1uHLrQgu (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:40:39 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 53D73935D1; Thu, 5 Nov 2015 11:40:38 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbi015870; Thu, 5 Nov 2015 06:40:32 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 07/22] richacl: Permission mapping functions Date: Thu, 5 Nov 2015 12:39:25 +0100 X-ASG-Orig-Subj: [PATCH v14 07/22] richacl: Permission mapping functions Message-Id: <1446723580-3747-8-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723638 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 We need to map from POSIX permissions to NFSv4 permissions when a chmod() is done, from NFSv4 permissions to POSIX permissions when an acl is set (which implicitly sets the file permission bits), and from the MAY_READ/MAY_WRITE/MAY_EXEC/MAY_APPEND flags to NFSv4 permissions when doing an access check in a richacl. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 118 +++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 3 ++ include/uapi/linux/richacl.h | 44 ++++++++++++++++ 3 files changed, 165 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index c3ec928..a393001 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -65,3 +65,121 @@ richace_copy(struct richace *to, const struct richace *from) { memcpy(to, from, sizeof(struct richace)); } + +/* + * richacl_mask_to_mode - compute the file permission bits from mask + * @mask: %RICHACE_* permission mask + * + * Compute the file permission bits corresponding to a particular set of + * richacl permissions. + * + * See richacl_masks_to_mode(). + */ +static int +richacl_mask_to_mode(unsigned int mask) +{ + int mode = 0; + + if (mask & RICHACE_POSIX_MODE_READ) + mode |= S_IROTH; + if (mask & RICHACE_POSIX_MODE_WRITE) + mode |= S_IWOTH; + if (mask & RICHACE_POSIX_MODE_EXEC) + mode |= S_IXOTH; + + return mode; +} + +/** + * richacl_masks_to_mode - compute file permission bits from file masks + * + * When setting a richacl, we set the file permission bits to indicate maximum + * permissions: for example, we set the Write permission when a mask contains + * RICHACE_APPEND_DATA even if it does not also contain RICHACE_WRITE_DATA. + * + * Permissions which are not in RICHACE_POSIX_MODE_READ, + * RICHACE_POSIX_MODE_WRITE, or RICHACE_POSIX_MODE_EXEC cannot be represented + * in the file permission bits. Such permissions can still be effective, but + * not for new files or after a chmod(); they must be explicitly enabled in the + * richacl. + */ +int +richacl_masks_to_mode(const struct richacl *acl) +{ + return richacl_mask_to_mode(acl->a_owner_mask) << 6 | + richacl_mask_to_mode(acl->a_group_mask) << 3 | + richacl_mask_to_mode(acl->a_other_mask); +} +EXPORT_SYMBOL_GPL(richacl_masks_to_mode); + +/** + * richacl_mode_to_mask - compute a file mask from the lowest three mode bits + * @mode: mode to convert to richacl permissions + * + * When the file permission bits of a file are set with chmod(), this specifies + * the maximum permissions that processes will get. All permissions beyond + * that will be removed from the file masks, and become ineffective. + */ +unsigned int +richacl_mode_to_mask(umode_t mode) +{ + unsigned int mask = 0; + + if (mode & S_IROTH) + mask |= RICHACE_POSIX_MODE_READ; + if (mode & S_IWOTH) + mask |= RICHACE_POSIX_MODE_WRITE; + if (mode & S_IXOTH) + mask |= RICHACE_POSIX_MODE_EXEC; + + return mask; +} + +/** + * richacl_want_to_mask - convert the iop->permission want argument to a mask + * @want: @want argument of the permission inode operation + * + * When checking for append, @want is (MAY_WRITE | MAY_APPEND). + * + * Richacls use the iop->may_create and iop->may_delete hooks which are used + * for checking if creating and deleting files is allowed. These hooks do not + * use richacl_want_to_mask(), so we do not have to deal with mapping MAY_WRITE + * to RICHACE_ADD_FILE, RICHACE_ADD_SUBDIRECTORY, and RICHACE_DELETE_CHILD + * here. + */ +unsigned int +richacl_want_to_mask(unsigned int want) +{ + unsigned int mask = 0; + + if (want & MAY_READ) + mask |= RICHACE_READ_DATA; + if (want & MAY_DELETE_SELF) + mask |= RICHACE_DELETE; + if (want & MAY_TAKE_OWNERSHIP) + mask |= RICHACE_WRITE_OWNER; + if (want & MAY_CHMOD) + mask |= RICHACE_WRITE_ACL; + if (want & MAY_SET_TIMES) + mask |= RICHACE_WRITE_ATTRIBUTES; + if (want & MAY_EXEC) + mask |= RICHACE_EXECUTE; + /* + * differentiate MAY_WRITE from these request + */ + if (want & (MAY_APPEND | + MAY_CREATE_FILE | MAY_CREATE_DIR | + MAY_DELETE_CHILD)) { + if (want & MAY_APPEND) + mask |= RICHACE_APPEND_DATA; + if (want & MAY_CREATE_FILE) + mask |= RICHACE_ADD_FILE; + if (want & MAY_CREATE_DIR) + mask |= RICHACE_ADD_SUBDIRECTORY; + if (want & MAY_DELETE_CHILD) + mask |= RICHACE_DELETE_CHILD; + } else if (want & MAY_WRITE) + mask |= RICHACE_WRITE_DATA; + return mask; +} +EXPORT_SYMBOL_GPL(richacl_want_to_mask); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index edb8480..9102ef0 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -175,5 +175,8 @@ richace_is_same_identifier(const struct richace *a, const struct richace *b) extern struct richacl *richacl_alloc(int, gfp_t); extern struct richacl *richacl_clone(const struct richacl *, gfp_t); extern void richace_copy(struct richace *, const struct richace *); +extern int richacl_masks_to_mode(const struct richacl *); +extern unsigned int richacl_mode_to_mask(umode_t); +extern unsigned int richacl_want_to_mask(unsigned int); #endif /* __RICHACL_H */ diff --git a/include/uapi/linux/richacl.h b/include/uapi/linux/richacl.h index 08856f8..1ed48ac 100644 --- a/include/uapi/linux/richacl.h +++ b/include/uapi/linux/richacl.h @@ -96,4 +96,48 @@ RICHACE_WRITE_OWNER | \ RICHACE_SYNCHRONIZE ) +/* + * The POSIX permissions are supersets of the following richacl permissions: + * + * - MAY_READ maps to READ_DATA or LIST_DIRECTORY, depending on the type + * of the file system object. + * + * - MAY_WRITE maps to WRITE_DATA or RICHACE_APPEND_DATA for files, and to + * ADD_FILE, RICHACE_ADD_SUBDIRECTORY, or RICHACE_DELETE_CHILD for directories. + * + * - MAY_EXECUTE maps to RICHACE_EXECUTE. + * + * (Some of these richacl permissions have the same bit values.) + */ +#define RICHACE_POSIX_MODE_READ ( \ + RICHACE_READ_DATA | \ + RICHACE_LIST_DIRECTORY) +#define RICHACE_POSIX_MODE_WRITE ( \ + RICHACE_WRITE_DATA | \ + RICHACE_ADD_FILE | \ + RICHACE_APPEND_DATA | \ + RICHACE_ADD_SUBDIRECTORY | \ + RICHACE_DELETE_CHILD) +#define RICHACE_POSIX_MODE_EXEC RICHACE_EXECUTE +#define RICHACE_POSIX_MODE_ALL ( \ + RICHACE_POSIX_MODE_READ | \ + RICHACE_POSIX_MODE_WRITE | \ + RICHACE_POSIX_MODE_EXEC) + +/* + * These permissions are always allowed no matter what the acl says. + */ +#define RICHACE_POSIX_ALWAYS_ALLOWED ( \ + RICHACE_SYNCHRONIZE | \ + RICHACE_READ_ATTRIBUTES | \ + RICHACE_READ_ACL) + +/* + * The owner is implicitly granted these permissions under POSIX. + */ +#define RICHACE_POSIX_OWNER_ALLOWED ( \ + RICHACE_WRITE_ATTRIBUTES | \ + RICHACE_WRITE_OWNER | \ + RICHACE_WRITE_ACL) + #endif /* __UAPI_RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:40:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 117847FC2 for ; Thu, 5 Nov 2015 05:40:47 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 91414AC002 for ; Thu, 5 Nov 2015 03:40:46 -0800 (PST) X-ASG-Debug-ID: 1446723645-04bdf03f043db30001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 7RTPhhCGOg1dLF1K (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:40:45 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 32EE28F2FF; Thu, 5 Nov 2015 11:40:45 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbj015870; Thu, 5 Nov 2015 06:40:38 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 08/22] richacl: Compute maximum file masks from an acl Date: Thu, 5 Nov 2015 12:39:26 +0100 X-ASG-Orig-Subj: [PATCH v14 08/22] richacl: Compute maximum file masks from an acl Message-Id: <1446723580-3747-9-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723645 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Compute upper bound owner, group, and other file masks with as few permissions as possible without denying any permissions that the NFSv4 acl in a richacl grants. This algorithm is used when a file inherits an acl at create time and when an acl is set via a mechanism that does not provide file masks (such as setting an acl via nfsd). When user-space sets an acl via setxattr, the extended attribute already includes the file masks. Setting an acl also sets the file mode permission bits: they are determined by the file masks; see richacl_masks_to_mode(). Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 157 ++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 1 + 2 files changed, 158 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index a393001..69b806c 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -183,3 +183,160 @@ richacl_want_to_mask(unsigned int want) return mask; } EXPORT_SYMBOL_GPL(richacl_want_to_mask); + +/* + * Note: functions like richacl_allowed_to_who(), richacl_group_class_allowed(), + * and richacl_compute_max_masks() iterate through the entire acl in reverse + * order as an optimization. + * + * In the standard algorithm, aces are considered in forward order. When a + * process matches an ace, the permissions in the ace are either allowed or + * denied depending on the ace type. Once a permission has been allowed or + * denied, it is no longer considered in further aces. + * + * By iterating through the acl in reverse order, we can compute the same + * result without having to keep track of which permissions have been allowed + * and denied already. + */ + +/** + * richacl_allowed_to_who - permissions allowed to a specific who value + * + * Compute the maximum mask values allowed to a specific who value, taking + * everyone@ aces into account. + */ +static unsigned int richacl_allowed_to_who(struct richacl *acl, + struct richace *who) +{ + struct richace *ace; + unsigned int allowed = 0; + + richacl_for_each_entry_reverse(ace, acl) { + if (richace_is_inherit_only(ace)) + continue; + if (richace_is_same_identifier(ace, who) || + richace_is_everyone(ace)) { + if (richace_is_allow(ace)) + allowed |= ace->e_mask; + else if (richace_is_deny(ace)) + allowed &= ~ace->e_mask; + } + } + return allowed; +} + +/** + * richacl_group_class_allowed - maximum permissions of the group class + * + * Compute the maximum mask values allowed to a process in the group class + * (i.e., a process which is not the owner but is in the owning group or + * matches a user or group acl entry). This includes permissions granted or + * denied by everyone@ aces. + * + * See richacl_compute_max_masks(). + */ +static unsigned int richacl_group_class_allowed(struct richacl *acl) +{ + struct richace *ace; + unsigned int everyone_allowed = 0, group_class_allowed = 0; + int had_group_ace = 0; + + richacl_for_each_entry_reverse(ace, acl) { + if (richace_is_inherit_only(ace) || + richace_is_owner(ace)) + continue; + + if (richace_is_everyone(ace)) { + if (richace_is_allow(ace)) + everyone_allowed |= ace->e_mask; + else if (richace_is_deny(ace)) + everyone_allowed &= ~ace->e_mask; + } else { + group_class_allowed |= + richacl_allowed_to_who(acl, ace); + + if (richace_is_group(ace)) + had_group_ace = 1; + } + } + /* + * If the acl doesn't contain any group@ aces, richacl_allowed_to_who() + * wasn't called for the owning group. We could make that call now, but + * we already know the result (everyone_allowed). + */ + if (!had_group_ace) + group_class_allowed |= everyone_allowed; + return group_class_allowed; +} + +/** + * richacl_compute_max_masks - compute upper bound masks + * + * Computes upper bound owner, group, and other masks so that none of the + * permissions allowed by the acl are disabled. + * + * We don't make assumptions about who the owner is so that the owner can + * change with no effect on the file masks or file mode permission bits; this + * means that we must assume that all entries can match the owner. + */ +void richacl_compute_max_masks(struct richacl *acl) +{ + unsigned int gmask = ~0; + struct richace *ace; + + /* + * @gmask contains all permissions which the group class is ever + * allowed. We use it to avoid adding permissions to the group mask + * from everyone@ allow aces which the group class is always denied + * through other aces. For example, the following acl would otherwise + * result in a group mask of rw: + * + * group@:w::deny + * everyone@:rw::allow + * + * Avoid computing @gmask for acls which do not include any group class + * deny aces: in such acls, the group class is never denied any + * permissions from everyone@ allow aces, and the group class cannot + * have fewer permissions than the other class. + */ + +restart: + acl->a_owner_mask = 0; + acl->a_group_mask = 0; + acl->a_other_mask = 0; + + richacl_for_each_entry_reverse(ace, acl) { + if (richace_is_inherit_only(ace)) + continue; + + if (richace_is_owner(ace)) { + if (richace_is_allow(ace)) + acl->a_owner_mask |= ace->e_mask; + else if (richace_is_deny(ace)) + acl->a_owner_mask &= ~ace->e_mask; + } else if (richace_is_everyone(ace)) { + if (richace_is_allow(ace)) { + acl->a_owner_mask |= ace->e_mask; + acl->a_group_mask |= ace->e_mask & gmask; + acl->a_other_mask |= ace->e_mask; + } else if (richace_is_deny(ace)) { + acl->a_owner_mask &= ~ace->e_mask; + acl->a_group_mask &= ~ace->e_mask; + acl->a_other_mask &= ~ace->e_mask; + } + } else { + if (richace_is_allow(ace)) { + acl->a_owner_mask |= ace->e_mask & gmask; + acl->a_group_mask |= ace->e_mask & gmask; + } else if (richace_is_deny(ace) && gmask == ~0) { + gmask = richacl_group_class_allowed(acl); + if (likely(gmask != ~0)) + /* should always be true */ + goto restart; + } + } + } + + acl->a_flags &= ~(RICHACL_WRITE_THROUGH | RICHACL_MASKED); +} +EXPORT_SYMBOL_GPL(richacl_compute_max_masks); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 9102ef0..3559b2c 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -178,5 +178,6 @@ extern void richace_copy(struct richace *, const struct richace *); extern int richacl_masks_to_mode(const struct richacl *); extern unsigned int richacl_mode_to_mask(umode_t); extern unsigned int richacl_want_to_mask(unsigned int); +extern void richacl_compute_max_masks(struct richacl *); #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:40:54 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 122A98006 for ; Thu, 5 Nov 2015 05:40:54 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 01E458F8033 for ; Thu, 5 Nov 2015 03:40:53 -0800 (PST) X-ASG-Debug-ID: 1446723652-04cb6c296c3a200001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 2CjLONPpdIBI7GI1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:40:52 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 0D229935DA; Thu, 5 Nov 2015 11:40:52 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbk015870; Thu, 5 Nov 2015 06:40:45 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 09/22] richacl: Permission check algorithm Date: Thu, 5 Nov 2015 12:39:27 +0100 X-ASG-Orig-Subj: [PATCH v14 09/22] richacl: Permission check algorithm Message-Id: <1446723580-3747-10-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723652 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 A richacl roughly grants a requested access if the NFSv4 acl in the richacl grants the requested permissions according to the NFSv4 permission check algorithm and the file mask that applies to the process includes the requested permissions. Signed-off-by: Andreas Gruenbacher Reviewed-by: "J. Bruce Fields" --- fs/Makefile | 2 +- fs/richacl_inode.c | 149 ++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 3 + 3 files changed, 153 insertions(+), 1 deletion(-) create mode 100644 fs/richacl_inode.c diff --git a/fs/Makefile b/fs/Makefile index fe3e9dd..ec665fd 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -49,7 +49,7 @@ obj-$(CONFIG_SYSCTL) += drop_caches.o obj-$(CONFIG_FHANDLE) += fhandle.o obj-$(CONFIG_FS_RICHACL) += richacl.o -richacl-y := richacl_base.o +richacl-y := richacl_base.o richacl_inode.o obj-y += quota/ diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c new file mode 100644 index 0000000..99b3c93 --- /dev/null +++ b/fs/richacl_inode.c @@ -0,0 +1,149 @@ +/* + * Copyright (C) 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include + +/** + * richacl_permission - richacl permission check algorithm + * @inode: inode to check + * @acl: rich acl of the inode + * @want: requested access (MAY_* flags) + * + * Checks if the current process is granted @mask flags in @acl. + */ +int +richacl_permission(struct inode *inode, const struct richacl *acl, + int want) +{ + const struct richace *ace; + unsigned int mask = richacl_want_to_mask(want); + unsigned int requested = mask, denied = 0; + int in_owning_group = in_group_p(inode->i_gid); + int in_owner_or_group_class = in_owning_group; + + /* + * A process is + * - in the owner file class if it owns the file, + * - in the group file class if it is in the file's owning group or + * it matches any of the user or group entries, and + * - in the other file class otherwise. + * The file class is only relevant for determining which file mask to + * apply, which only happens for masked acls. + */ + if (acl->a_flags & RICHACL_MASKED) { + if ((acl->a_flags & RICHACL_WRITE_THROUGH) && + uid_eq(current_fsuid(), inode->i_uid)) { + denied = requested & ~acl->a_owner_mask; + goto out; + } + } else { + /* + * When the acl is not masked, there is no need to determine if + * the process is in the group class and we can break out + * earlier of the loop below. + */ + in_owner_or_group_class = 1; + } + + /* + * Check if the acl grants the requested access and determine which + * file class the process is in. + */ + richacl_for_each_entry(ace, acl) { + unsigned int ace_mask = ace->e_mask; + + if (richace_is_inherit_only(ace)) + continue; + if (richace_is_owner(ace)) { + if (!uid_eq(current_fsuid(), inode->i_uid)) + continue; + goto entry_matches_owner; + } else if (richace_is_group(ace)) { + if (!in_owning_group) + continue; + } else if (richace_is_unix_user(ace)) { + if (!uid_eq(current_fsuid(), ace->e_id.uid)) + continue; + if (uid_eq(current_fsuid(), inode->i_uid)) + goto entry_matches_owner; + } else if (richace_is_unix_group(ace)) { + if (!in_group_p(ace->e_id.gid)) + continue; + } else + goto entry_matches_everyone; + + /* + * Apply the group file mask to entries other than owner@ and + * everyone@ or user entries matching the owner. This ensures + * that we grant the same permissions as the acl computed by + * richacl_apply_masks(). + * + * Without this restriction, the following richacl would grant + * rw access to processes which are both the owner and in the + * owning group, but not to other users in the owning group, + * which could not be represented without masks: + * + * owner:rw::mask + * group@:rw::allow + */ + if ((acl->a_flags & RICHACL_MASKED) && richace_is_allow(ace)) + ace_mask &= acl->a_group_mask; + +entry_matches_owner: + /* The process is in the owner or group file class. */ + in_owner_or_group_class = 1; + +entry_matches_everyone: + /* Check which mask flags the ACE allows or denies. */ + if (richace_is_deny(ace)) + denied |= ace_mask & mask; + mask &= ~ace_mask; + + /* + * Keep going until we know which file class + * the process is in. + */ + if (!mask && in_owner_or_group_class) + break; + } + denied |= mask; + + if (acl->a_flags & RICHACL_MASKED) { + /* + * The file class a process is in determines which file mask + * applies. Check if that file mask also grants the requested + * access. + */ + if (uid_eq(current_fsuid(), inode->i_uid)) + denied |= requested & ~acl->a_owner_mask; + else if (in_owner_or_group_class) + denied |= requested & ~acl->a_group_mask; + else { + if (acl->a_flags & RICHACL_WRITE_THROUGH) + denied = requested & ~acl->a_other_mask; + else + denied |= requested & ~acl->a_other_mask; + } + } + +out: + return denied ? -EACCES : 0; +} +EXPORT_SYMBOL_GPL(richacl_permission); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 3559b2c..1d9f5f7 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -180,4 +180,7 @@ extern unsigned int richacl_mode_to_mask(umode_t); extern unsigned int richacl_want_to_mask(unsigned int); extern void richacl_compute_max_masks(struct richacl *); +/* richacl_inode.c */ +extern int richacl_permission(struct inode *, const struct richacl *, int); + #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:41:00 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 69A667FE9 for ; Thu, 5 Nov 2015 05:41:00 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5CB308F8037 for ; Thu, 5 Nov 2015 03:41:00 -0800 (PST) X-ASG-Debug-ID: 1446723659-04cb6c296d3a210001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 2BUQLDCSHZy2lc9D (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:40:59 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id EA28C8F50D; Thu, 5 Nov 2015 11:40:58 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbl015870; Thu, 5 Nov 2015 06:40:52 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 10/22] posix_acl: Unexport acl_by_type and make it static Date: Thu, 5 Nov 2015 12:39:28 +0100 X-ASG-Orig-Subj: [PATCH v14 10/22] posix_acl: Unexport acl_by_type and make it static Message-Id: <1446723580-3747-11-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723659 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 acl_by_type(inode, type) returns a pointer to either inode->i_acl or inode->i_default_acl depending on type. This is useful in fs/posix_acl.c, but should never have been visible outside that file. Signed-off-by: Andreas Gruenbacher --- fs/posix_acl.c | 3 +-- include/linux/posix_acl.h | 1 - 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/fs/posix_acl.c b/fs/posix_acl.c index 4fb17de..aacfb58 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -21,7 +21,7 @@ #include #include -struct posix_acl **acl_by_type(struct inode *inode, int type) +static struct posix_acl **acl_by_type(struct inode *inode, int type) { switch (type) { case ACL_TYPE_ACCESS: @@ -32,7 +32,6 @@ struct posix_acl **acl_by_type(struct inode *inode, int type) BUG(); } } -EXPORT_SYMBOL(acl_by_type); struct posix_acl *get_cached_acl(struct inode *inode, int type) { diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index 3e96a6a..5b5a80c 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -99,7 +99,6 @@ extern int posix_acl_create(struct inode *, umode_t *, struct posix_acl **, extern int simple_set_acl(struct inode *, struct posix_acl *, int); extern int simple_acl_create(struct inode *, struct inode *); -struct posix_acl **acl_by_type(struct inode *inode, int type); struct posix_acl *get_cached_acl(struct inode *inode, int type); struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type); void set_cached_acl(struct inode *inode, int type, struct posix_acl *acl); -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:41:08 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 899EB7FDB for ; Thu, 5 Nov 2015 05:41:08 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6BBE9304051 for ; Thu, 5 Nov 2015 03:41:08 -0800 (PST) X-ASG-Debug-ID: 1446723666-04cb6c296b3a210001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id mWg9hRFtCdUvXxjb (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:41:06 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 29648C0D61A5; Thu, 5 Nov 2015 11:41:06 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbm015870; Thu, 5 Nov 2015 06:40:59 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 11/22] vfs: Cache base_acl objects in inodes Date: Thu, 5 Nov 2015 12:39:29 +0100 X-ASG-Orig-Subj: [PATCH v14 11/22] vfs: Cache base_acl objects in inodes Message-Id: <1446723580-3747-12-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723666 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 POSIX ACLs and richacls are both objects allocated by kmalloc() with a reference count which are freed by kfree_rcu(). An inode can either cache an access and a default POSIX ACL, or a richacl (richacls do not have default acls). To allow an inode to cache either of the two kinds of acls, introduce a new base_acl type and convert i_acl and i_default_acl to that type. In most cases, the vfs then doesn't care which kind of acl an inode caches (if any). Signed-off-by: Andreas Gruenbacher --- drivers/staging/lustre/lustre/llite/llite_lib.c | 2 +- fs/f2fs/acl.c | 4 +-- fs/inode.c | 4 +-- fs/jffs2/acl.c | 10 ++++-- fs/posix_acl.c | 41 +++++++++++++------------ fs/richacl_base.c | 4 +-- include/linux/fs.h | 34 ++++++++++++++++++-- include/linux/posix_acl.h | 12 +++----- include/linux/richacl.h | 9 +++--- 9 files changed, 75 insertions(+), 45 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index b4ed6c8..46912c2 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -1118,7 +1118,7 @@ void ll_clear_inode(struct inode *inode) } #ifdef CONFIG_FS_POSIX_ACL else if (lli->lli_posix_acl) { - LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) == 1); + LASSERT(base_acl_refcount(&lli->lli_posix_acl->a_base) == 1); LASSERT(lli->lli_remote_perms == NULL); posix_acl_release(lli->lli_posix_acl); lli->lli_posix_acl = NULL; diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c index c8f25f7..9646197 100644 --- a/fs/f2fs/acl.c +++ b/fs/f2fs/acl.c @@ -270,7 +270,7 @@ static struct posix_acl *f2fs_acl_clone(const struct posix_acl *acl, sizeof(struct posix_acl_entry); clone = kmemdup(acl, size, flags); if (clone) - atomic_set(&clone->a_refcount, 1); + base_acl_init(&clone->a_base); } return clone; } @@ -282,7 +282,7 @@ static int f2fs_acl_create_masq(struct posix_acl *acl, umode_t *mode_p) umode_t mode = *mode_p; int not_equiv = 0; - /* assert(atomic_read(acl->a_refcount) == 1); */ + /* assert(base_acl_refcount(&acl->a_base) == 1); */ FOREACH_ACL_ENTRY(pa, acl, pe) { switch(pa->e_tag) { diff --git a/fs/inode.c b/fs/inode.c index 78a17b8..5c46ae5 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -233,9 +233,9 @@ void __destroy_inode(struct inode *inode) #ifdef CONFIG_FS_POSIX_ACL if (inode->i_acl && inode->i_acl != ACL_NOT_CACHED) - posix_acl_release(inode->i_acl); + base_acl_put(inode->i_acl); if (inode->i_default_acl && inode->i_default_acl != ACL_NOT_CACHED) - posix_acl_release(inode->i_default_acl); + base_acl_put(inode->i_default_acl); #endif this_cpu_dec(nr_inodes); } diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c index 2f7a3c0..569cb1b 100644 --- a/fs/jffs2/acl.c +++ b/fs/jffs2/acl.c @@ -294,13 +294,19 @@ int jffs2_init_acl_post(struct inode *inode) int rc; if (inode->i_default_acl) { - rc = __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_DEFAULT, inode->i_default_acl); + struct posix_acl *default_acl = container_of( + inode->i_default_acl, struct posix_acl, a_base); + + rc = __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_DEFAULT, default_acl); if (rc) return rc; } if (inode->i_acl) { - rc = __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_ACCESS, inode->i_acl); + struct posix_acl *acl = container_of( + inode->i_acl, struct posix_acl, a_base); + + rc = __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_ACCESS, acl); if (rc) return rc; } diff --git a/fs/posix_acl.c b/fs/posix_acl.c index aacfb58..4573315 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -21,7 +21,7 @@ #include #include -static struct posix_acl **acl_by_type(struct inode *inode, int type) +static struct base_acl **acl_by_type(struct inode *inode, int type) { switch (type) { case ACL_TYPE_ACCESS: @@ -35,63 +35,64 @@ static struct posix_acl **acl_by_type(struct inode *inode, int type) struct posix_acl *get_cached_acl(struct inode *inode, int type) { - struct posix_acl **p = acl_by_type(inode, type); - struct posix_acl *acl = ACCESS_ONCE(*p); + struct base_acl **p = acl_by_type(inode, type); + struct base_acl *acl = ACCESS_ONCE(*p); if (acl) { spin_lock(&inode->i_lock); acl = *p; if (acl != ACL_NOT_CACHED) - acl = posix_acl_dup(acl); + base_acl_get(acl); spin_unlock(&inode->i_lock); } - return acl; + return container_of(acl, struct posix_acl, a_base); } EXPORT_SYMBOL(get_cached_acl); struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type) { - return rcu_dereference(*acl_by_type(inode, type)); + struct base_acl *acl = rcu_dereference(*acl_by_type(inode, type)); + return container_of(acl, struct posix_acl, a_base); } EXPORT_SYMBOL(get_cached_acl_rcu); void set_cached_acl(struct inode *inode, int type, struct posix_acl *acl) { - struct posix_acl **p = acl_by_type(inode, type); - struct posix_acl *old; + struct base_acl **p = acl_by_type(inode, type); + struct base_acl *old; spin_lock(&inode->i_lock); old = *p; - rcu_assign_pointer(*p, posix_acl_dup(acl)); + rcu_assign_pointer(*p, &posix_acl_dup(acl)->a_base); spin_unlock(&inode->i_lock); if (old != ACL_NOT_CACHED) - posix_acl_release(old); + base_acl_put(old); } EXPORT_SYMBOL(set_cached_acl); void forget_cached_acl(struct inode *inode, int type) { - struct posix_acl **p = acl_by_type(inode, type); - struct posix_acl *old; + struct base_acl **p = acl_by_type(inode, type); + struct base_acl *old; spin_lock(&inode->i_lock); old = *p; *p = ACL_NOT_CACHED; spin_unlock(&inode->i_lock); if (old != ACL_NOT_CACHED) - posix_acl_release(old); + base_acl_put(old); } EXPORT_SYMBOL(forget_cached_acl); void forget_all_cached_acls(struct inode *inode) { - struct posix_acl *old_access, *old_default; + struct base_acl *old_access, *old_default; spin_lock(&inode->i_lock); old_access = inode->i_acl; old_default = inode->i_default_acl; inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED; spin_unlock(&inode->i_lock); if (old_access != ACL_NOT_CACHED) - posix_acl_release(old_access); + base_acl_put(old_access); if (old_default != ACL_NOT_CACHED) - posix_acl_release(old_default); + base_acl_put(old_default); } EXPORT_SYMBOL(forget_all_cached_acls); @@ -128,7 +129,7 @@ EXPORT_SYMBOL(get_acl); void posix_acl_init(struct posix_acl *acl, int count) { - atomic_set(&acl->a_refcount, 1); + base_acl_init(&acl->a_base); acl->a_count = count; } EXPORT_SYMBOL(posix_acl_init); @@ -161,7 +162,7 @@ posix_acl_clone(const struct posix_acl *acl, gfp_t flags) sizeof(struct posix_acl_entry); clone = kmemdup(acl, size, flags); if (clone) - atomic_set(&clone->a_refcount, 1); + base_acl_init(&clone->a_base); } return clone; } @@ -383,7 +384,7 @@ static int posix_acl_create_masq(struct posix_acl *acl, umode_t *mode_p) umode_t mode = *mode_p; int not_equiv = 0; - /* assert(atomic_read(acl->a_refcount) == 1); */ + /* assert(base_acl_refcount(&acl->a_base) == 1); */ FOREACH_ACL_ENTRY(pa, acl, pe) { switch(pa->e_tag) { @@ -438,7 +439,7 @@ static int __posix_acl_chmod_masq(struct posix_acl *acl, umode_t mode) struct posix_acl_entry *group_obj = NULL, *mask_obj = NULL; struct posix_acl_entry *pa, *pe; - /* assert(atomic_read(acl->a_refcount) == 1); */ + /* assert(base_acl_refcount(&acl->a_base) == 1); */ FOREACH_ACL_ENTRY(pa, acl, pe) { switch(pa->e_tag) { diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 69b806c..5826842 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -33,7 +33,7 @@ richacl_alloc(int count, gfp_t gfp) struct richacl *acl = kzalloc(size, gfp); if (acl) { - atomic_set(&acl->a_refcount, 1); + base_acl_init(&acl->a_base); acl->a_count = count; } return acl; @@ -52,7 +52,7 @@ richacl_clone(const struct richacl *acl, gfp_t gfp) if (dup) { memcpy(dup, acl, size); - atomic_set(&dup->a_refcount, 1); + base_acl_init(&dup->a_base); } return dup; } diff --git a/include/linux/fs.h b/include/linux/fs.h index ba91a89..2fd840e 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -576,6 +576,12 @@ static inline void mapping_allow_writable(struct address_space *mapping) #define i_size_ordered_init(inode) do { } while (0) #endif +struct base_acl { + union { + atomic_t ba_refcount; + struct rcu_head ba_rcu; + }; +}; struct posix_acl; #define ACL_NOT_CACHED ((void *)(-1)) @@ -595,9 +601,9 @@ struct inode { kgid_t i_gid; unsigned int i_flags; -#ifdef CONFIG_FS_POSIX_ACL - struct posix_acl *i_acl; - struct posix_acl *i_default_acl; +#if defined(CONFIG_FS_POSIX_ACL) + struct base_acl *i_acl; + struct base_acl *i_default_acl; #endif const struct inode_operations *i_op; @@ -3059,4 +3065,26 @@ static inline bool dir_relax(struct inode *inode) extern bool path_noexec(const struct path *path); +static inline void base_acl_get(struct base_acl *acl) +{ + if (acl) + atomic_inc(&acl->ba_refcount); +} + +static inline void base_acl_put(struct base_acl *acl) +{ + if (acl && atomic_dec_and_test(&acl->ba_refcount)) + kfree_rcu(acl, ba_rcu); +} + +static inline void base_acl_init(struct base_acl *acl) +{ + atomic_set(&acl->ba_refcount, 1); +} + +static inline int base_acl_refcount(struct base_acl *acl) +{ + return atomic_read(&acl->ba_refcount); +} + #endif /* _LINUX_FS_H */ diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index 5b5a80c..cef5428 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -43,10 +43,7 @@ struct posix_acl_entry { }; struct posix_acl { - union { - atomic_t a_refcount; - struct rcu_head a_rcu; - }; + struct base_acl a_base; /* must be first, see posix_acl_release() */ unsigned int a_count; struct posix_acl_entry a_entries[0]; }; @@ -61,8 +58,7 @@ struct posix_acl { static inline struct posix_acl * posix_acl_dup(struct posix_acl *acl) { - if (acl) - atomic_inc(&acl->a_refcount); + base_acl_get(&acl->a_base); return acl; } @@ -72,8 +68,8 @@ posix_acl_dup(struct posix_acl *acl) static inline void posix_acl_release(struct posix_acl *acl) { - if (acl && atomic_dec_and_test(&acl->a_refcount)) - kfree_rcu(acl, a_rcu); + BUILD_BUG_ON(offsetof(struct posix_acl, a_base) != 0); + base_acl_put(&acl->a_base); } diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 1d9f5f7..7628fad 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -31,7 +31,7 @@ struct richace { }; struct richacl { - atomic_t a_refcount; + struct base_acl a_base; /* must be first, see richacl_put() */ unsigned int a_owner_mask; unsigned int a_group_mask; unsigned int a_other_mask; @@ -56,8 +56,7 @@ struct richacl { static inline struct richacl * richacl_get(struct richacl *acl) { - if (acl) - atomic_inc(&acl->a_refcount); + base_acl_get(&acl->a_base); return acl; } @@ -67,8 +66,8 @@ richacl_get(struct richacl *acl) static inline void richacl_put(struct richacl *acl) { - if (acl && atomic_dec_and_test(&acl->a_refcount)) - kfree(acl); + BUILD_BUG_ON(offsetof(struct richacl, a_base) != 0); + base_acl_put(&acl->a_base); } /** -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:41:15 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 325A77FD7 for ; Thu, 5 Nov 2015 05:41:15 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id A7430AC001 for ; Thu, 5 Nov 2015 03:41:14 -0800 (PST) X-ASG-Debug-ID: 1446723673-04cb6c296b3a220001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 0kyrtnKVEHzubgWc (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:41:13 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 06A2CC0032EA; Thu, 5 Nov 2015 11:41:13 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbn015870; Thu, 5 Nov 2015 06:41:06 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 12/22] vfs: Add get_richacl and set_richacl inode operations Date: Thu, 5 Nov 2015 12:39:30 +0100 X-ASG-Orig-Subj: [PATCH v14 12/22] vfs: Add get_richacl and set_richacl inode operations Message-Id: <1446723580-3747-13-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723673 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 These operations are similar to the get_acl and set_acl operations for POSIX ACLs. The distinction between access and default ACLs doesn't exist for richacls. Signed-off-by: Andreas Gruenbacher --- include/linux/fs.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/fs.h b/include/linux/fs.h index 2fd840e..3c36c72 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1662,6 +1662,7 @@ struct inode_operations { const char * (*follow_link) (struct dentry *, void **); int (*permission) (struct inode *, int); struct posix_acl * (*get_acl)(struct inode *, int); + struct richacl * (*get_richacl)(struct inode *); int (*readlink) (struct dentry *, char __user *,int); void (*put_link) (struct inode *, void *); @@ -1691,6 +1692,7 @@ struct inode_operations { umode_t create_mode, int *opened); int (*tmpfile) (struct inode *, struct dentry *, umode_t); int (*set_acl)(struct inode *, struct posix_acl *, int); + int (*set_richacl)(struct inode *, struct richacl *); /* WARNING: probably going away soon, do not use! */ } ____cacheline_aligned; -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:41:21 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A61467FEB for ; Thu, 5 Nov 2015 05:41:21 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 984EC8F8033 for ; Thu, 5 Nov 2015 03:41:21 -0800 (PST) X-ASG-Debug-ID: 1446723680-04cbb0242342400001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Ikhp6BBCGoQC6BVT (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:41:20 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id D630CE7066; Thu, 5 Nov 2015 11:41:19 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbo015870; Thu, 5 Nov 2015 06:41:13 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 13/22] vfs: Cache richacl in struct inode Date: Thu, 5 Nov 2015 12:39:31 +0100 X-ASG-Orig-Subj: [PATCH v14 13/22] vfs: Cache richacl in struct inode Message-Id: <1446723580-3747-14-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723680 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Cache richacls in struct inode so that this doesn't have to be done individually in each filesystem. This is similar to POSIX ACLs. Signed-off-by: Andreas Gruenbacher --- fs/inode.c | 11 +++++-- fs/posix_acl.c | 2 +- fs/richacl_inode.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/fs.h | 5 +++- include/linux/richacl.h | 6 ++++ 5 files changed, 96 insertions(+), 5 deletions(-) diff --git a/fs/inode.c b/fs/inode.c index 5c46ae5..5e8710c 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -174,8 +174,11 @@ int inode_init_always(struct super_block *sb, struct inode *inode) inode->i_private = NULL; inode->i_mapping = mapping; INIT_HLIST_HEAD(&inode->i_dentry); /* buggered by rcu freeing */ -#ifdef CONFIG_FS_POSIX_ACL - inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED; +#if defined(CONFIG_FS_POSIX_ACL) || defined(CONFIG_FS_RICHACL) + inode->i_acl = ACL_NOT_CACHED; +# if defined(CONFIG_FS_POSIX_ACL) + inode->i_default_acl = ACL_NOT_CACHED; +# endif #endif #ifdef CONFIG_FSNOTIFY @@ -231,11 +234,13 @@ void __destroy_inode(struct inode *inode) atomic_long_dec(&inode->i_sb->s_remove_count); } -#ifdef CONFIG_FS_POSIX_ACL +#if defined(CONFIG_FS_POSIX_ACL) || defined(CONFIG_FS_RICHACL) if (inode->i_acl && inode->i_acl != ACL_NOT_CACHED) base_acl_put(inode->i_acl); +# if defined(CONFIG_FS_POSIX_ACL) if (inode->i_default_acl && inode->i_default_acl != ACL_NOT_CACHED) base_acl_put(inode->i_default_acl); +# endif #endif this_cpu_dec(nr_inodes); } diff --git a/fs/posix_acl.c b/fs/posix_acl.c index 4573315..b0eb1dc 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -37,7 +37,7 @@ struct posix_acl *get_cached_acl(struct inode *inode, int type) { struct base_acl **p = acl_by_type(inode, type); struct base_acl *acl = ACCESS_ONCE(*p); - if (acl) { + if (acl && IS_POSIXACL(inode)) { spin_lock(&inode->i_lock); acl = *p; if (acl != ACL_NOT_CACHED) diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index 99b3c93..52c1595 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -20,6 +20,83 @@ #include #include +struct richacl *get_cached_richacl(struct inode *inode) +{ + struct base_acl *acl; + + acl = ACCESS_ONCE(inode->i_acl); + if (acl && IS_RICHACL(inode)) { + spin_lock(&inode->i_lock); + acl = inode->i_acl; + if (acl != ACL_NOT_CACHED) + base_acl_get(acl); + spin_unlock(&inode->i_lock); + } + return container_of(acl, struct richacl, a_base); +} +EXPORT_SYMBOL_GPL(get_cached_richacl); + +struct richacl *get_cached_richacl_rcu(struct inode *inode) +{ + struct base_acl *acl = rcu_dereference(inode->i_acl); + + return container_of(acl, struct richacl, a_base); +} +EXPORT_SYMBOL_GPL(get_cached_richacl_rcu); + +void set_cached_richacl(struct inode *inode, struct richacl *acl) +{ + struct base_acl *old = NULL; + + spin_lock(&inode->i_lock); + old = inode->i_acl; + rcu_assign_pointer(inode->i_acl, &richacl_get(acl)->a_base); + spin_unlock(&inode->i_lock); + if (old != ACL_NOT_CACHED) + base_acl_put(old); +} +EXPORT_SYMBOL_GPL(set_cached_richacl); + +void forget_cached_richacl(struct inode *inode) +{ + struct base_acl *old = NULL; + + spin_lock(&inode->i_lock); + old = inode->i_acl; + inode->i_acl = ACL_NOT_CACHED; + spin_unlock(&inode->i_lock); + if (old != ACL_NOT_CACHED) + base_acl_put(old); +} +EXPORT_SYMBOL_GPL(forget_cached_richacl); + +struct richacl *get_richacl(struct inode *inode) +{ + struct richacl *acl; + + acl = get_cached_richacl(inode); + if (acl != ACL_NOT_CACHED) + return acl; + + if (!IS_RICHACL(inode)) + return NULL; + + /* + * A filesystem can force a ACL callback by just never filling the + * ACL cache. But normally you'd fill the cache either at inode + * instantiation time, or on the first ->get_richacl call. + * + * If the filesystem doesn't have a get_richacl() function at all, + * we'll just create the negative cache entry. + */ + if (!inode->i_op->get_richacl) { + set_cached_richacl(inode, NULL); + return NULL; + } + return inode->i_op->get_richacl(inode); +} +EXPORT_SYMBOL_GPL(get_richacl); + /** * richacl_permission - richacl permission check algorithm * @inode: inode to check diff --git a/include/linux/fs.h b/include/linux/fs.h index 3c36c72..05fb943 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -583,6 +583,7 @@ struct base_acl { }; }; struct posix_acl; +struct richacl; #define ACL_NOT_CACHED ((void *)(-1)) #define IOP_FASTPERM 0x0001 @@ -601,9 +602,11 @@ struct inode { kgid_t i_gid; unsigned int i_flags; -#if defined(CONFIG_FS_POSIX_ACL) +#if defined(CONFIG_FS_POSIX_ACL) || defined(CONFIG_FS_RICHACL) struct base_acl *i_acl; +# if defined(CONFIG_FS_POSIX_ACL) struct base_acl *i_default_acl; +# endif #endif const struct inode_operations *i_op; diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 7628fad..7bf912b6 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -70,6 +70,12 @@ richacl_put(struct richacl *acl) base_acl_put(&acl->a_base); } +extern struct richacl *get_cached_richacl(struct inode *); +extern struct richacl *get_cached_richacl_rcu(struct inode *); +extern void set_cached_richacl(struct inode *, struct richacl *); +extern void forget_cached_richacl(struct inode *); +extern struct richacl *get_richacl(struct inode *); + /** * richace_is_owner - check if @ace is an OWNER@ entry */ -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:41:28 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A832E7FD7 for ; Thu, 5 Nov 2015 05:41:28 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9B6BA304053 for ; Thu, 5 Nov 2015 03:41:28 -0800 (PST) X-ASG-Debug-ID: 1446723687-04cbb0242342430001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 37skatNcsUU11VtF (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:41:27 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id C831614CAA7; Thu, 5 Nov 2015 11:41:26 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbp015870; Thu, 5 Nov 2015 06:41:20 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 14/22] richacl: Update the file masks in chmod() Date: Thu, 5 Nov 2015 12:39:32 +0100 X-ASG-Orig-Subj: [PATCH v14 14/22] richacl: Update the file masks in chmod() Message-Id: <1446723580-3747-15-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723687 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Doing a chmod() sets the file mode, which includes the file permission bits. When a file has a richacl, the permissions that the richacl grants need to be limited to what the new file permission bits allow. This is done by setting the file masks in the richacl to what the file permission bits map to. The richacl access check algorithm takes the file masks into account, which ensures that the richacl cannot grant too many permissions. It is possible to explicitly add permissions to the file masks which go beyond what the file permission bits can grant (like the RICHACE_WRITE_ACL permission). The POSIX.1 standard calls this an alternate file access control mechanism. A subsequent chmod() would ensure that those permissions are disabled again. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 42 ++++++++++++++++++++++++++++++++++++++++++ fs/richacl_inode.c | 30 ++++++++++++++++++++++++++++++ include/linux/richacl.h | 2 ++ 3 files changed, 74 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 5826842..e4dd779 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -340,3 +340,45 @@ restart: acl->a_flags &= ~(RICHACL_WRITE_THROUGH | RICHACL_MASKED); } EXPORT_SYMBOL_GPL(richacl_compute_max_masks); + +/** + * __richacl_chmod - update the file masks to reflect the new mode + * @acl: access control list + * @mode: new file permission bits including the file type + * + * Return a copy of @acl where the file masks have been replaced by the file + * masks corresponding to the file permission bits in @mode, or returns @acl + * itself if the file masks are already up to date. Takes over a reference + * to @acl. + */ +struct richacl * +__richacl_chmod(struct richacl *acl, umode_t mode) +{ + unsigned int x = S_ISDIR(mode) ? 0 : RICHACE_DELETE_CHILD; + unsigned int owner_mask, group_mask, other_mask; + struct richacl *clone; + + owner_mask = richacl_mode_to_mask(mode >> 6) & ~x; + group_mask = richacl_mode_to_mask(mode >> 3) & ~x; + other_mask = richacl_mode_to_mask(mode) & ~x; + + if (acl->a_owner_mask == owner_mask && + acl->a_group_mask == group_mask && + acl->a_other_mask == other_mask && + (acl->a_flags & RICHACL_MASKED) && + (acl->a_flags & RICHACL_WRITE_THROUGH)) + return acl; + + clone = richacl_clone(acl, GFP_KERNEL); + richacl_put(acl); + if (!clone) + return ERR_PTR(-ENOMEM); + + clone->a_flags |= (RICHACL_WRITE_THROUGH | RICHACL_MASKED); + clone->a_owner_mask = owner_mask; + clone->a_group_mask = group_mask; + clone->a_other_mask = other_mask; + + return clone; +} +EXPORT_SYMBOL_GPL(__richacl_chmod); diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index 52c1595..e329826 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -224,3 +224,33 @@ out: return denied ? -EACCES : 0; } EXPORT_SYMBOL_GPL(richacl_permission); + +/** + * richacl_chmod - filesystem chmod helper + * @inode: inode whose file permission bits to change + * @mode: new file permission bits including the file type + * + * Helper for filesystems to use to perform a chmod on the richacl of an inode. + */ +int +richacl_chmod(struct inode *inode, umode_t mode) +{ + struct richacl *acl; + int retval; + + if (S_ISLNK(mode)) + return -EOPNOTSUPP; + if (!inode->i_op->set_richacl) + return -EOPNOTSUPP; + acl = get_richacl(inode); + if (IS_ERR_OR_NULL(acl)) + return PTR_ERR(acl); + acl = __richacl_chmod(acl, mode); + if (IS_ERR(acl)) + return PTR_ERR(acl); + retval = inode->i_op->set_richacl(inode, acl); + richacl_put(acl); + + return retval; +} +EXPORT_SYMBOL(richacl_chmod); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 7bf912b6..a2d5600 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -184,8 +184,10 @@ extern int richacl_masks_to_mode(const struct richacl *); extern unsigned int richacl_mode_to_mask(umode_t); extern unsigned int richacl_want_to_mask(unsigned int); extern void richacl_compute_max_masks(struct richacl *); +extern struct richacl *__richacl_chmod(struct richacl *, umode_t); /* richacl_inode.c */ extern int richacl_permission(struct inode *, const struct richacl *, int); +extern int richacl_chmod(struct inode *, umode_t); #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:41:37 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7CD8F7FD7 for ; Thu, 5 Nov 2015 05:41:37 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id EF3DAAC001 for ; Thu, 5 Nov 2015 03:41:36 -0800 (PST) X-ASG-Debug-ID: 1446723695-04cbb0242342470001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id bXOsYznIWyb5XHyG (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:41:35 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 06BBE8F50D; Thu, 5 Nov 2015 11:41:33 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbq015870; Thu, 5 Nov 2015 06:41:27 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 15/22] richacl: Check if an acl is equivalent to a file mode Date: Thu, 5 Nov 2015 12:39:33 +0100 X-ASG-Orig-Subj: [PATCH v14 15/22] richacl: Check if an acl is equivalent to a file mode Message-Id: <1446723580-3747-16-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723695 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 ACLs are considered equivalent to file modes if they only consist of owner@, group@, and everyone@ entries, the owner@ permissions do not depend on whether the owner is a member in the owning group, and no inheritance flags are set. This test is used to avoid storing richacls if the acl can be computed from the file permission bits. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 104 ++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 1 + 2 files changed, 105 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index e4dd779..74e5cb5 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -382,3 +382,107 @@ __richacl_chmod(struct richacl *acl, umode_t mode) return clone; } EXPORT_SYMBOL_GPL(__richacl_chmod); + +/** + * richacl_equiv_mode - compute the mode equivalent of @acl + * + * An acl is considered equivalent to a file mode if it only consists of + * owner@, group@, and everyone@ entries and the owner@ permissions do not + * depend on whether the owner is a member in the owning group. + */ +int +richacl_equiv_mode(const struct richacl *acl, umode_t *mode_p) +{ + umode_t mode = *mode_p; + + /* + * The RICHACE_DELETE_CHILD flag is meaningless for non-directories, so + * we ignore it. + */ + unsigned int x = S_ISDIR(mode) ? 0 : RICHACE_DELETE_CHILD; + struct { + unsigned int allowed; + unsigned int defined; /* allowed or denied */ + } owner = { + .defined = RICHACE_POSIX_ALWAYS_ALLOWED | + RICHACE_POSIX_OWNER_ALLOWED | x, + }, group = { + .defined = RICHACE_POSIX_ALWAYS_ALLOWED | x, + }, everyone = { + .defined = RICHACE_POSIX_ALWAYS_ALLOWED | x, + }; + const struct richace *ace; + + if (acl->a_flags & ~(RICHACL_WRITE_THROUGH | RICHACL_MASKED)) + return -1; + + richacl_for_each_entry(ace, acl) { + if (ace->e_flags & ~RICHACE_SPECIAL_WHO) + return -1; + + if (richace_is_owner(ace) || richace_is_everyone(ace)) { + x = ace->e_mask & ~owner.defined; + if (richace_is_allow(ace)) { + unsigned int group_denied = + group.defined & ~group.allowed; + + if (x & group_denied) + return -1; + owner.allowed |= x; + } else /* if (richace_is_deny(ace)) */ { + if (x & group.allowed) + return -1; + } + owner.defined |= x; + + if (richace_is_everyone(ace)) { + x = ace->e_mask; + if (richace_is_allow(ace)) { + group.allowed |= + x & ~group.defined; + everyone.allowed |= + x & ~everyone.defined; + } + group.defined |= x; + everyone.defined |= x; + } + } else if (richace_is_group(ace)) { + x = ace->e_mask & ~group.defined; + if (richace_is_allow(ace)) + group.allowed |= x; + group.defined |= x; + } else + return -1; + } + + if (group.allowed & ~owner.defined) + return -1; + + if (acl->a_flags & RICHACL_MASKED) { + if (acl->a_flags & RICHACL_WRITE_THROUGH) { + owner.allowed = acl->a_owner_mask; + everyone.allowed = acl->a_other_mask; + } else { + owner.allowed &= acl->a_owner_mask; + everyone.allowed &= acl->a_other_mask; + } + group.allowed &= acl->a_group_mask; + } + + mode = (mode & ~S_IRWXUGO) | + (richacl_mask_to_mode(owner.allowed) << 6) | + (richacl_mask_to_mode(group.allowed) << 3) | + richacl_mask_to_mode(everyone.allowed); + + /* Mask flags we can ignore */ + x = S_ISDIR(mode) ? 0 : RICHACE_DELETE_CHILD; + + if (((richacl_mode_to_mask(mode >> 6) ^ owner.allowed) & ~x) || + ((richacl_mode_to_mask(mode >> 3) ^ group.allowed) & ~x) || + ((richacl_mode_to_mask(mode) ^ everyone.allowed) & ~x)) + return -1; + + *mode_p = mode; + return 0; +} +EXPORT_SYMBOL_GPL(richacl_equiv_mode); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index a2d5600..b7128bf 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -185,6 +185,7 @@ extern unsigned int richacl_mode_to_mask(umode_t); extern unsigned int richacl_want_to_mask(unsigned int); extern void richacl_compute_max_masks(struct richacl *); extern struct richacl *__richacl_chmod(struct richacl *, umode_t); +extern int richacl_equiv_mode(const struct richacl *, umode_t *); /* richacl_inode.c */ extern int richacl_permission(struct inode *, const struct richacl *, int); -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:41:42 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C9F0B8029 for ; Thu, 5 Nov 2015 05:41:42 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 91C56304053 for ; Thu, 5 Nov 2015 03:41:42 -0800 (PST) X-ASG-Debug-ID: 1446723701-04bdf03f033dbb0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Uk3kbpTfAaWHvGIM (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:41:41 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id A2B408E25D; Thu, 5 Nov 2015 11:41:40 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbr015870; Thu, 5 Nov 2015 06:41:34 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 16/22] richacl: Create-time inheritance Date: Thu, 5 Nov 2015 12:39:34 +0100 X-ASG-Orig-Subj: [PATCH v14 16/22] richacl: Create-time inheritance Message-Id: <1446723580-3747-17-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723701 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 When a new file is created, it can inherit an acl from its parent directory; this is similar to how default acls work in POSIX (draft) ACLs. As with POSIX ACLs, if a file inherits an acl from its parent directory, the intersection between the create mode and the permissions granted by the inherited acl determines the file masks and file permission bits, and the umask is ignored. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++ fs/richacl_inode.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 2 ++ 3 files changed, 140 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 74e5cb5..3753216 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -486,3 +486,71 @@ richacl_equiv_mode(const struct richacl *acl, umode_t *mode_p) return 0; } EXPORT_SYMBOL_GPL(richacl_equiv_mode); + +/** + * richacl_inherit - compute the inherited acl of a new file + * @dir_acl: acl of the containing directory + * @isdir: inherit by a directory or non-directory? + * + * A directory can have acl entries which files and/or directories created + * inside the directory will inherit. This function computes the acl for such + * a new file. If there is no inheritable acl, it will return %NULL. + */ +struct richacl * +richacl_inherit(const struct richacl *dir_acl, int isdir) +{ + const struct richace *dir_ace; + struct richacl *acl = NULL; + struct richace *ace; + int count = 0; + + if (isdir) { + richacl_for_each_entry(dir_ace, dir_acl) { + if (!richace_is_inheritable(dir_ace)) + continue; + count++; + } + if (!count) + return NULL; + acl = richacl_alloc(count, GFP_KERNEL); + if (!acl) + return ERR_PTR(-ENOMEM); + ace = acl->a_entries; + richacl_for_each_entry(dir_ace, dir_acl) { + if (!richace_is_inheritable(dir_ace)) + continue; + richace_copy(ace, dir_ace); + if (dir_ace->e_flags & RICHACE_NO_PROPAGATE_INHERIT_ACE) + ace->e_flags &= ~RICHACE_INHERITANCE_FLAGS; + else if (!(dir_ace->e_flags & RICHACE_DIRECTORY_INHERIT_ACE)) + ace->e_flags |= RICHACE_INHERIT_ONLY_ACE; + ace++; + } + } else { + richacl_for_each_entry(dir_ace, dir_acl) { + if (!(dir_ace->e_flags & RICHACE_FILE_INHERIT_ACE)) + continue; + count++; + } + if (!count) + return NULL; + acl = richacl_alloc(count, GFP_KERNEL); + if (!acl) + return ERR_PTR(-ENOMEM); + ace = acl->a_entries; + richacl_for_each_entry(dir_ace, dir_acl) { + if (!(dir_ace->e_flags & RICHACE_FILE_INHERIT_ACE)) + continue; + richace_copy(ace, dir_ace); + ace->e_flags &= ~RICHACE_INHERITANCE_FLAGS; + /* + * RICHACE_DELETE_CHILD is meaningless for + * non-directories, so clear it. + */ + ace->e_mask &= ~RICHACE_DELETE_CHILD; + ace++; + } + } + + return acl; +} diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index e329826..ec3d2c8 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -254,3 +254,73 @@ richacl_chmod(struct inode *inode, umode_t mode) return retval; } EXPORT_SYMBOL(richacl_chmod); + +/* + * richacl_inherit_inode - compute inherited acl and file mode + * @dir_acl: acl of the containing directory + * @mode_p: mode of the new inode + * + * The file permission bits in @mode_p must be set to the create mode by the + * caller. + * + * If there is an inheritable acl, the maximum permissions that the acl grants + * are computed and the file masks of the new acl are set accordingly. + */ +static struct richacl * +richacl_inherit_inode(const struct richacl *dir_acl, umode_t *mode_p) +{ + struct richacl *acl; + umode_t mode = *mode_p; + + acl = richacl_inherit(dir_acl, S_ISDIR(mode)); + if (acl) { + if (richacl_equiv_mode(acl, &mode) == 0) { + *mode_p &= mode; + richacl_put(acl); + acl = NULL; + } else { + richacl_compute_max_masks(acl); + /* + * Ensure that the acl will not grant any permissions + * beyond the create mode. + */ + acl->a_flags |= RICHACL_MASKED; + acl->a_owner_mask &= + richacl_mode_to_mask(mode >> 6); + acl->a_group_mask &= + richacl_mode_to_mask(mode >> 3); + acl->a_other_mask &= + richacl_mode_to_mask(mode); + } + } else + *mode_p &= ~current_umask(); + + return acl; +} + +/** + * richacl_create - filesystem create helper + * @mode_p: mode of the new inode + * @dir: containing directory + * + * Compute the inherited acl for a new inode. If there is no acl to inherit, + * apply the umask. Use when creating a new inode on a richacl enabled file + * system. + */ +struct richacl *richacl_create(umode_t *mode_p, struct inode *dir) +{ + struct richacl *dir_acl, *acl = NULL; + + if (S_ISLNK(*mode_p)) + return NULL; + dir_acl = get_richacl(dir); + if (dir_acl) { + if (IS_ERR(dir_acl)) + return dir_acl; + acl = richacl_inherit_inode(dir_acl, mode_p); + richacl_put(dir_acl); + } else + *mode_p &= ~current_umask(); + return acl; +} +EXPORT_SYMBOL_GPL(richacl_create); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index b7128bf..c8fae91a 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -186,9 +186,11 @@ extern unsigned int richacl_want_to_mask(unsigned int); extern void richacl_compute_max_masks(struct richacl *); extern struct richacl *__richacl_chmod(struct richacl *, umode_t); extern int richacl_equiv_mode(const struct richacl *, umode_t *); +extern struct richacl *richacl_inherit(const struct richacl *, int); /* richacl_inode.c */ extern int richacl_permission(struct inode *, const struct richacl *, int); extern int richacl_chmod(struct inode *, umode_t); +extern struct richacl *richacl_create(umode_t *, struct inode *); #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:41:49 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 018017FD7 for ; Thu, 5 Nov 2015 05:41:49 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8321DAC002 for ; Thu, 5 Nov 2015 03:41:48 -0800 (PST) X-ASG-Debug-ID: 1446723707-04bdf03f023dbc0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Af0bMmg0gpuYVH36 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:41:47 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 56D02E7066; Thu, 5 Nov 2015 11:41:47 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbs015870; Thu, 5 Nov 2015 06:41:41 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 17/22] richacl: Automatic Inheritance Date: Thu, 5 Nov 2015 12:39:35 +0100 X-ASG-Orig-Subj: [PATCH v14 17/22] richacl: Automatic Inheritance Message-Id: <1446723580-3747-18-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723707 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com Automatic Inheritance (AI) allows changes to the acl of a directory to propagate down to children. This is mostly implemented in user space: when a process changes the permissions of a directory and Automatic Inheritance is enabled for that directory, the process must propagate those changes to all children, recursively. The kernel enables this by keeping track of which permissions have been inherited at create time. In addition, it makes sure that permission propagation is turned off when the permissions are set explicitly (for example, upon create or chmod). Automatic Inheritance works as follows: - When the RICHACL_AUTO_INHERIT flag in the acl of a file or directory is not set, the file or directory is not affected by AI. - When the RICHACL_AUTO_INHERIT flag in the acl of a directory is set and a file or subdirectory is created in that directory, the inherited acl will have the RICHACL_AUTO_INHERIT flag set, and all inherited aces will have the RICHACE_INHERITED_ACE flag set. This allows user space to distinguish between aces which have been inherited and aces which have been explicitly added. - When the RICHACL_PROTECTED acl flag in the acl of a file or directory is set, AI will not modify the acl. This does not affect propagation of permissions from the file to its children (if the file is a directory). Linux does not have a way of creating files or directories without setting the file permission bits, so all files created inside a directory with RICHACL_AUTO_INHERIT set will have the RICHACL_PROTECTED flag set. This effectively disables Automatic Inheritance. Protocols which support creating files without specifying permissions can explicitly clear the RICHACL_PROTECTED flag after creating a file and reset the file masks to "undo" applying the create mode; see richacl_compute_max_masks(). They should set the RICHACL_DEFAULTED flag. (A mechanism that would allow to indicate to the kernel to ignore the create mode in the first place when there are inherited permissions would be nice to have.) Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 10 +++++++++- fs/richacl_inode.c | 7 +++++++ include/linux/richacl.h | 12 ++++++++++++ include/uapi/linux/richacl.h | 11 ++++++++++- 4 files changed, 38 insertions(+), 2 deletions(-) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 3753216..b67280d 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -366,7 +366,8 @@ __richacl_chmod(struct richacl *acl, umode_t mode) acl->a_group_mask == group_mask && acl->a_other_mask == other_mask && (acl->a_flags & RICHACL_MASKED) && - (acl->a_flags & RICHACL_WRITE_THROUGH)) + (acl->a_flags & RICHACL_WRITE_THROUGH) && + (!richacl_is_auto_inherit(acl) || richacl_is_protected(acl))) return acl; clone = richacl_clone(acl, GFP_KERNEL); @@ -378,6 +379,8 @@ __richacl_chmod(struct richacl *acl, umode_t mode) clone->a_owner_mask = owner_mask; clone->a_group_mask = group_mask; clone->a_other_mask = other_mask; + if (richacl_is_auto_inherit(clone)) + clone->a_flags |= RICHACL_PROTECTED; return clone; } @@ -551,6 +554,11 @@ richacl_inherit(const struct richacl *dir_acl, int isdir) ace++; } } + if (richacl_is_auto_inherit(dir_acl)) { + acl->a_flags = RICHACL_AUTO_INHERIT; + richacl_for_each_entry(ace, acl) + ace->e_flags |= RICHACE_INHERITED_ACE; + } return acl; } diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index ec3d2c8..99a1ab6 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -279,6 +279,13 @@ richacl_inherit_inode(const struct richacl *dir_acl, umode_t *mode_p) richacl_put(acl); acl = NULL; } else { + /* + * We need to set RICHACL_PROTECTED because we are + * doing an implicit chmod + */ + if (richacl_is_auto_inherit(acl)) + acl->a_flags |= RICHACL_PROTECTED; + richacl_compute_max_masks(acl); /* * Ensure that the acl will not grant any permissions diff --git a/include/linux/richacl.h b/include/linux/richacl.h index c8fae91a..c524a4b 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -76,6 +76,18 @@ extern void set_cached_richacl(struct inode *, struct richacl *); extern void forget_cached_richacl(struct inode *); extern struct richacl *get_richacl(struct inode *); +static inline int +richacl_is_auto_inherit(const struct richacl *acl) +{ + return acl->a_flags & RICHACL_AUTO_INHERIT; +} + +static inline int +richacl_is_protected(const struct richacl *acl) +{ + return acl->a_flags & RICHACL_PROTECTED; +} + /** * richace_is_owner - check if @ace is an OWNER@ entry */ diff --git a/include/uapi/linux/richacl.h b/include/uapi/linux/richacl.h index 1ed48ac..8849a53 100644 --- a/include/uapi/linux/richacl.h +++ b/include/uapi/linux/richacl.h @@ -18,6 +18,9 @@ #define __UAPI_RICHACL_H /* a_flags values */ +#define RICHACL_AUTO_INHERIT 0x01 +#define RICHACL_PROTECTED 0x02 +#define RICHACL_DEFAULTED 0x04 #define RICHACL_WRITE_THROUGH 0x40 #define RICHACL_MASKED 0x80 @@ -31,6 +34,7 @@ #define RICHACE_NO_PROPAGATE_INHERIT_ACE 0x0004 #define RICHACE_INHERIT_ONLY_ACE 0x0008 #define RICHACE_IDENTIFIER_GROUP 0x0040 +#define RICHACE_INHERITED_ACE 0x0080 #define RICHACE_SPECIAL_WHO 0x4000 /* e_mask bitflags */ @@ -60,6 +64,9 @@ #define RICHACE_EVERYONE_SPECIAL_ID 2 #define RICHACL_VALID_FLAGS ( \ + RICHACL_AUTO_INHERIT | \ + RICHACL_PROTECTED | \ + RICHACL_DEFAULTED | \ RICHACL_WRITE_THROUGH | \ RICHACL_MASKED ) @@ -69,13 +76,15 @@ RICHACE_NO_PROPAGATE_INHERIT_ACE | \ RICHACE_INHERIT_ONLY_ACE | \ RICHACE_IDENTIFIER_GROUP | \ + RICHACE_INHERITED_ACE | \ RICHACE_SPECIAL_WHO ) #define RICHACE_INHERITANCE_FLAGS ( \ RICHACE_FILE_INHERIT_ACE | \ RICHACE_DIRECTORY_INHERIT_ACE | \ RICHACE_NO_PROPAGATE_INHERIT_ACE | \ - RICHACE_INHERIT_ONLY_ACE ) + RICHACE_INHERIT_ONLY_ACE | \ + RICHACE_INHERITED_ACE ) /* Valid RICHACE_* flags for directories and non-directories */ #define RICHACE_VALID_MASK ( \ -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:41:56 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9B2D37FD7 for ; Thu, 5 Nov 2015 05:41:56 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 50901304051 for ; Thu, 5 Nov 2015 03:41:56 -0800 (PST) X-ASG-Debug-ID: 1446723714-04bdf03f023dbe0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id PHLr9r1vCGRGlFxR (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:41:54 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 3840C14CAA7; Thu, 5 Nov 2015 11:41:54 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbt015870; Thu, 5 Nov 2015 06:41:47 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 18/22] richacl: xattr mapping functions Date: Thu, 5 Nov 2015 12:39:36 +0100 X-ASG-Orig-Subj: [PATCH v14 18/22] richacl: xattr mapping functions Message-Id: <1446723580-3747-19-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723714 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com Map between "system.richacl" xattrs and the in-kernel representation. Signed-off-by: Andreas Gruenbacher --- fs/Makefile | 2 +- fs/richacl_xattr.c | 220 +++++++++++++++++++++++++++++++++++++ fs/xattr.c | 34 +++++- include/linux/richacl_xattr.h | 42 +++++++ include/uapi/linux/Kbuild | 1 + include/uapi/linux/richacl_xattr.h | 44 ++++++++ include/uapi/linux/xattr.h | 2 + 7 files changed, 338 insertions(+), 7 deletions(-) create mode 100644 fs/richacl_xattr.c create mode 100644 include/linux/richacl_xattr.h create mode 100644 include/uapi/linux/richacl_xattr.h diff --git a/fs/Makefile b/fs/Makefile index ec665fd..35e640d 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -49,7 +49,7 @@ obj-$(CONFIG_SYSCTL) += drop_caches.o obj-$(CONFIG_FHANDLE) += fhandle.o obj-$(CONFIG_FS_RICHACL) += richacl.o -richacl-y := richacl_base.o richacl_inode.o +richacl-y := richacl_base.o richacl_inode.o richacl_xattr.o obj-y += quota/ diff --git a/fs/richacl_xattr.c b/fs/richacl_xattr.c new file mode 100644 index 0000000..38473b6 --- /dev/null +++ b/fs/richacl_xattr.c @@ -0,0 +1,220 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include + +MODULE_LICENSE("GPL"); + +/** + * richacl_from_xattr - convert a richacl xattr into the in-memory representation + */ +struct richacl * +richacl_from_xattr(struct user_namespace *user_ns, + const void *value, size_t size) +{ + const struct richacl_xattr *xattr_acl = value; + const struct richace_xattr *xattr_ace = (void *)(xattr_acl + 1); + struct richacl *acl; + struct richace *ace; + int count; + + if (size < sizeof(*xattr_acl) || + xattr_acl->a_version != RICHACL_XATTR_VERSION || + (xattr_acl->a_flags & ~RICHACL_VALID_FLAGS)) + return ERR_PTR(-EINVAL); + size -= sizeof(*xattr_acl); + count = le16_to_cpu(xattr_acl->a_count); + if (count > RICHACL_XATTR_MAX_COUNT) + return ERR_PTR(-EINVAL); + if (size != count * sizeof(*xattr_ace)) + return ERR_PTR(-EINVAL); + + acl = richacl_alloc(count, GFP_NOFS); + if (!acl) + return ERR_PTR(-ENOMEM); + + acl->a_flags = xattr_acl->a_flags; + acl->a_owner_mask = le32_to_cpu(xattr_acl->a_owner_mask); + if (acl->a_owner_mask & ~RICHACE_VALID_MASK) + goto fail_einval; + acl->a_group_mask = le32_to_cpu(xattr_acl->a_group_mask); + if (acl->a_group_mask & ~RICHACE_VALID_MASK) + goto fail_einval; + acl->a_other_mask = le32_to_cpu(xattr_acl->a_other_mask); + if (acl->a_other_mask & ~RICHACE_VALID_MASK) + goto fail_einval; + + richacl_for_each_entry(ace, acl) { + ace->e_type = le16_to_cpu(xattr_ace->e_type); + ace->e_flags = le16_to_cpu(xattr_ace->e_flags); + ace->e_mask = le32_to_cpu(xattr_ace->e_mask); + + if (ace->e_flags & ~RICHACE_VALID_FLAGS) + goto fail_einval; + if (ace->e_flags & RICHACE_SPECIAL_WHO) { + ace->e_id.special = le32_to_cpu(xattr_ace->e_id); + if (ace->e_id.special > RICHACE_EVERYONE_SPECIAL_ID) + goto fail_einval; + } else if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) { + u32 id = le32_to_cpu(xattr_ace->e_id); + + ace->e_id.gid = make_kgid(user_ns, id); + if (!gid_valid(ace->e_id.gid)) + goto fail_einval; + } else { + u32 id = le32_to_cpu(xattr_ace->e_id); + + ace->e_id.uid = make_kuid(user_ns, id); + if (!uid_valid(ace->e_id.uid)) + goto fail_einval; + } + if (ace->e_type > RICHACE_ACCESS_DENIED_ACE_TYPE || + (ace->e_mask & ~RICHACE_VALID_MASK)) + goto fail_einval; + + xattr_ace++; + } + + return acl; + +fail_einval: + richacl_put(acl); + return ERR_PTR(-EINVAL); +} +EXPORT_SYMBOL_GPL(richacl_from_xattr); + +/** + * richacl_xattr_size - compute the size of the xattr representation of @acl + */ +size_t +richacl_xattr_size(const struct richacl *acl) +{ + size_t size = sizeof(struct richacl_xattr); + + size += sizeof(struct richace_xattr) * acl->a_count; + return size; +} +EXPORT_SYMBOL_GPL(richacl_xattr_size); + +/** + * richacl_to_xattr - convert @acl into its xattr representation + * @acl: the richacl to convert + * @buffer: buffer for the result + * @size: size of @buffer + */ +int +richacl_to_xattr(struct user_namespace *user_ns, + const struct richacl *acl, void *buffer, size_t size) +{ + struct richacl_xattr *xattr_acl = buffer; + struct richace_xattr *xattr_ace; + const struct richace *ace; + size_t real_size; + + real_size = richacl_xattr_size(acl); + if (!buffer) + return real_size; + if (real_size > size) + return -ERANGE; + + xattr_acl->a_version = RICHACL_XATTR_VERSION; + xattr_acl->a_flags = acl->a_flags; + xattr_acl->a_count = cpu_to_le16(acl->a_count); + + xattr_acl->a_owner_mask = cpu_to_le32(acl->a_owner_mask); + xattr_acl->a_group_mask = cpu_to_le32(acl->a_group_mask); + xattr_acl->a_other_mask = cpu_to_le32(acl->a_other_mask); + + xattr_ace = (void *)(xattr_acl + 1); + richacl_for_each_entry(ace, acl) { + xattr_ace->e_type = cpu_to_le16(ace->e_type); + xattr_ace->e_flags = cpu_to_le16(ace->e_flags); + xattr_ace->e_mask = cpu_to_le32(ace->e_mask); + if (ace->e_flags & RICHACE_SPECIAL_WHO) + xattr_ace->e_id = cpu_to_le32(ace->e_id.special); + else if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) + xattr_ace->e_id = + cpu_to_le32(from_kgid(user_ns, ace->e_id.gid)); + else + xattr_ace->e_id = + cpu_to_le32(from_kuid(user_ns, ace->e_id.uid)); + xattr_ace++; + } + return real_size; +} +EXPORT_SYMBOL_GPL(richacl_to_xattr); + +/* + * Fix up the uids and gids in richacl extended attributes in place. + */ +static void richacl_fix_xattr_userns( + struct user_namespace *to, struct user_namespace *from, + void *value, size_t size) +{ + struct richacl_xattr *xattr_acl = value; + struct richace_xattr *xattr_ace = + (struct richace_xattr *)(xattr_acl + 1); + unsigned int count; + + if (!value) + return; + if (size < sizeof(*xattr_acl)) + return; + if (xattr_acl->a_version != cpu_to_le32(RICHACL_XATTR_VERSION)) + return; + size -= sizeof(*xattr_acl); + if (size % sizeof(*xattr_ace)) + return; + count = size / sizeof(*xattr_ace); + for (; count; count--, xattr_ace++) { + if (xattr_ace->e_flags & cpu_to_le16(RICHACE_SPECIAL_WHO)) + continue; + if (xattr_ace->e_flags & + cpu_to_le16(RICHACE_IDENTIFIER_GROUP)) { + u32 id = le32_to_cpu(xattr_ace->e_id); + kgid_t gid = make_kgid(from, id); + + xattr_ace->e_id = cpu_to_le32(from_kgid(to, gid)); + } else { + u32 id = le32_to_cpu(xattr_ace->e_id); + kuid_t uid = make_kuid(from, id); + + xattr_ace->e_id = cpu_to_le32(from_kuid(to, uid)); + } + } +} + +void richacl_fix_xattr_from_user(void *value, size_t size) +{ + struct user_namespace *user_ns = current_user_ns(); + + if (user_ns == &init_user_ns) + return; + richacl_fix_xattr_userns(&init_user_ns, user_ns, value, size); +} + +void richacl_fix_xattr_to_user(void *value, size_t size) +{ + struct user_namespace *user_ns = current_user_ns(); + + if (user_ns == &init_user_ns) + return; + richacl_fix_xattr_userns(user_ns, &init_user_ns, value, size); +} diff --git a/fs/xattr.c b/fs/xattr.c index 072fee1..f2313c6 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -21,6 +21,7 @@ #include #include #include +#include #include @@ -314,6 +315,18 @@ out: } EXPORT_SYMBOL_GPL(vfs_removexattr); +static void +fix_xattr_from_user(const char *kname, void *kvalue, size_t size) +{ + if (strncmp(kname, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) + return; + kname += XATTR_SYSTEM_PREFIX_LEN; + if (!strcmp(kname, XATTR_POSIX_ACL_ACCESS) || + !strcmp(kname, XATTR_POSIX_ACL_DEFAULT)) + posix_acl_fix_xattr_from_user(kvalue, size); + else if (!strcmp(kname, XATTR_RICHACL)) + richacl_fix_xattr_from_user(kvalue, size); +} /* * Extended attribute SET operations @@ -350,9 +363,7 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value, error = -EFAULT; goto out; } - if ((strcmp(kname, XATTR_NAME_POSIX_ACL_ACCESS) == 0) || - (strcmp(kname, XATTR_NAME_POSIX_ACL_DEFAULT) == 0)) - posix_acl_fix_xattr_from_user(kvalue, size); + fix_xattr_from_user(kname, kvalue, size); } error = vfs_setxattr(d, kname, kvalue, size, flags); @@ -419,6 +430,19 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name, return error; } +static void +fix_xattr_to_user(const char *kname, void *kvalue, size_t size) +{ + if (strncmp(kname, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) + return; + kname += XATTR_SYSTEM_PREFIX_LEN; + if (!strcmp(kname, XATTR_POSIX_ACL_ACCESS) || + !strcmp(kname, XATTR_POSIX_ACL_DEFAULT)) + posix_acl_fix_xattr_to_user(kvalue, size); + else if (!strcmp(kname, XATTR_RICHACL)) + richacl_fix_xattr_to_user(kvalue, size); +} + /* * Extended attribute GET operations */ @@ -451,9 +475,7 @@ getxattr(struct dentry *d, const char __user *name, void __user *value, error = vfs_getxattr(d, kname, kvalue, size); if (error > 0) { - if ((strcmp(kname, XATTR_NAME_POSIX_ACL_ACCESS) == 0) || - (strcmp(kname, XATTR_NAME_POSIX_ACL_DEFAULT) == 0)) - posix_acl_fix_xattr_to_user(kvalue, size); + fix_xattr_to_user(kname, kvalue, size); if (size && copy_to_user(value, kvalue, error)) error = -EFAULT; } else if (error == -ERANGE && size >= XATTR_SIZE_MAX) { diff --git a/include/linux/richacl_xattr.h b/include/linux/richacl_xattr.h new file mode 100644 index 0000000..7fc5ca8 --- /dev/null +++ b/include/linux/richacl_xattr.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#ifndef __RICHACL_XATTR_H +#define __RICHACL_XATTR_H + +#include +#include + +extern struct richacl *richacl_from_xattr(struct user_namespace *, const void *, + size_t); +extern size_t richacl_xattr_size(const struct richacl *); +extern int richacl_to_xattr(struct user_namespace *, const struct richacl *, + void *, size_t); + +#ifdef CONFIG_FS_RICHACL +extern void richacl_fix_xattr_from_user(void *, size_t); +extern void richacl_fix_xattr_to_user(void *, size_t); +#else +static inline void richacl_fix_xattr_from_user(void *value, size_t size) +{ +} + +static inline void richacl_fix_xattr_to_user(void *value, size_t size) +{ +} +#endif + +#endif /* __RICHACL_XATTR_H */ diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild index 8c82010..18ad070 100644 --- a/include/uapi/linux/Kbuild +++ b/include/uapi/linux/Kbuild @@ -349,6 +349,7 @@ header-y += reiserfs_fs.h header-y += reiserfs_xattr.h header-y += resource.h header-y += richacl.h +header-y += richacl_xattr.h header-y += rfkill.h header-y += romfs_fs.h header-y += rose.h diff --git a/include/uapi/linux/richacl_xattr.h b/include/uapi/linux/richacl_xattr.h new file mode 100644 index 0000000..5178ca6 --- /dev/null +++ b/include/uapi/linux/richacl_xattr.h @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + */ + +#ifndef __UAPI_RICHACL_XATTR_H +#define __UAPI_RICHACL_XATTR_H + +#include +#include + +struct richace_xattr { + __le16 e_type; + __le16 e_flags; + __le32 e_mask; + __le32 e_id; +}; + +struct richacl_xattr { + unsigned char a_version; + unsigned char a_flags; + __le16 a_count; + __le32 a_owner_mask; + __le32 a_group_mask; + __le32 a_other_mask; +}; + +#define RICHACL_XATTR_VERSION 0 +#define RICHACL_XATTR_MAX_COUNT \ + ((XATTR_SIZE_MAX - sizeof(struct richacl_xattr)) / \ + sizeof(struct richace_xattr)) + +#endif /* __UAPI_RICHACL_XATTR_H */ diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h index 1590c49..1996903 100644 --- a/include/uapi/linux/xattr.h +++ b/include/uapi/linux/xattr.h @@ -73,5 +73,7 @@ #define XATTR_POSIX_ACL_DEFAULT "posix_acl_default" #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT +#define XATTR_RICHACL "richacl" +#define XATTR_NAME_RICHACL XATTR_SYSTEM_PREFIX XATTR_RICHACL #endif /* _UAPI_LINUX_XATTR_H */ -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:42:03 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8E9E17FD7 for ; Thu, 5 Nov 2015 05:42:03 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id F389CAC003 for ; Thu, 5 Nov 2015 03:42:02 -0800 (PST) X-ASG-Debug-ID: 1446723721-04cb6c296b3a2b0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id TbjhDFJ15hqn6Jv8 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:42:01 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 22AA8C01F2C9; Thu, 5 Nov 2015 11:42:01 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbu015870; Thu, 5 Nov 2015 06:41:54 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 19/22] richacl: Add richacl xattr handler Date: Thu, 5 Nov 2015 12:39:37 +0100 X-ASG-Orig-Subj: [PATCH v14 19/22] richacl: Add richacl xattr handler Message-Id: <1446723580-3747-20-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723721 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Add richacl xattr handler implementing the xattr operations based on the get_richacl and set_richacl inode operations. Signed-off-by: Andreas Gruenbacher --- fs/richacl_xattr.c | 78 +++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl_xattr.h | 2 ++ 2 files changed, 80 insertions(+) diff --git a/fs/richacl_xattr.c b/fs/richacl_xattr.c index 38473b6..767c1f7 100644 --- a/fs/richacl_xattr.c +++ b/fs/richacl_xattr.c @@ -18,7 +18,9 @@ #include #include #include +#include #include +#include MODULE_LICENSE("GPL"); @@ -161,6 +163,82 @@ richacl_to_xattr(struct user_namespace *user_ns, } EXPORT_SYMBOL_GPL(richacl_to_xattr); +static size_t +richacl_xattr_list(struct dentry *dentry, char *list, size_t list_len, + const char *name, size_t name_len, int handler_flags) +{ + const size_t size = sizeof(XATTR_NAME_RICHACL); + + if (!IS_RICHACL(d_backing_inode(dentry))) + return 0; + if (list && size <= list_len) + memcpy(list, XATTR_NAME_RICHACL, size); + return size; +} + +static int +richacl_xattr_get(struct dentry *dentry, const char *name, void *buffer, + size_t buffer_size, int handler_flags) +{ + struct inode *inode = d_backing_inode(dentry); + struct richacl *acl; + int error; + + if (strcmp(name, "") != 0) + return -EINVAL; + if (!IS_RICHACL(inode)) + return EOPNOTSUPP; + if (S_ISLNK(inode->i_mode)) + return -EOPNOTSUPP; + acl = get_richacl(inode); + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl == NULL) + return -ENODATA; + error = richacl_to_xattr(&init_user_ns, acl, buffer, buffer_size); + richacl_put(acl); + return error; +} + +static int +richacl_xattr_set(struct dentry *dentry, const char *name, + const void *value, size_t size, int flags, int handler_flags) +{ + struct inode *inode = d_backing_inode(dentry); + struct richacl *acl = NULL; + int ret; + + if (strcmp(name, "") != 0) + return -EINVAL; + if (!IS_RICHACL(inode)) + return -EOPNOTSUPP; + if (!inode->i_op->set_richacl) + return -EOPNOTSUPP; + + if (!uid_eq(current_fsuid(), inode->i_uid) && + inode_permission(inode, MAY_CHMOD) && + !capable(CAP_FOWNER)) + return -EPERM; + + if (value) { + acl = richacl_from_xattr(&init_user_ns, value, size); + if (IS_ERR(acl)) + return PTR_ERR(acl); + } + + ret = inode->i_op->set_richacl(inode, acl); + richacl_put(acl); + return ret; +} + +struct xattr_handler richacl_xattr_handler = { + .prefix = XATTR_NAME_RICHACL, + .list = richacl_xattr_list, + .get = richacl_xattr_get, + .set = richacl_xattr_set, +}; +EXPORT_SYMBOL(richacl_xattr_handler); + /* * Fix up the uids and gids in richacl extended attributes in place. */ diff --git a/include/linux/richacl_xattr.h b/include/linux/richacl_xattr.h index 7fc5ca8..45ec27a 100644 --- a/include/linux/richacl_xattr.h +++ b/include/linux/richacl_xattr.h @@ -39,4 +39,6 @@ static inline void richacl_fix_xattr_to_user(void *value, size_t size) } #endif +extern struct xattr_handler richacl_xattr_handler; + #endif /* __RICHACL_XATTR_H */ -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:42:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 558E0803B for ; Thu, 5 Nov 2015 05:42:09 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 014EFAC002 for ; Thu, 5 Nov 2015 03:42:08 -0800 (PST) X-ASG-Debug-ID: 1446723728-04bdf03f053dc10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id coLrwlcEPyVrZnLd (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:42:08 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id EB925130B; Thu, 5 Nov 2015 11:42:07 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbv015870; Thu, 5 Nov 2015 06:42:01 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v14 20/22] vfs: Add richacl permission checking Date: Thu, 5 Nov 2015 12:39:38 +0100 X-ASG-Orig-Subj: [PATCH v14 20/22] vfs: Add richacl permission checking Message-Id: <1446723580-3747-21-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723728 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hook the richacl permission checking function into the vfs. Signed-off-by: Andreas Gruenbacher --- fs/namei.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++-- fs/posix_acl.c | 6 +++--- 2 files changed, 52 insertions(+), 5 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 2eab19e..3822b5e 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include "internal.h" @@ -255,7 +256,40 @@ void putname(struct filename *name) __putname(name); } -static int check_acl(struct inode *inode, int mask) +static int check_richacl(struct inode *inode, int mask) +{ +#ifdef CONFIG_FS_RICHACL + struct richacl *acl; + + if (mask & MAY_NOT_BLOCK) { + acl = get_cached_richacl_rcu(inode); + if (!acl) + goto no_acl; + /* no ->get_richacl() calls in RCU mode... */ + if (acl == ACL_NOT_CACHED) + return -ECHILD; + return richacl_permission(inode, acl, mask & ~MAY_NOT_BLOCK); + } + + acl = get_richacl(inode); + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl) { + int error = richacl_permission(inode, acl, mask); + richacl_put(acl); + return error; + } +no_acl: +#endif + if (mask & (MAY_DELETE_SELF | MAY_TAKE_OWNERSHIP | + MAY_CHMOD | MAY_SET_TIMES)) { + /* File permission bits cannot grant this. */ + return -EACCES; + } + return -EAGAIN; +} + +static int check_posix_acl(struct inode *inode, int mask) { #ifdef CONFIG_FS_POSIX_ACL struct posix_acl *acl; @@ -290,11 +324,24 @@ static int acl_permission_check(struct inode *inode, int mask) { unsigned int mode = inode->i_mode; + /* + * With POSIX ACLs, the (mode & S_IRWXU) bits exactly match the owner + * permissions, and we can skip checking posix acls for the owner. + * With richacls, the owner may be granted fewer permissions than the + * mode bits seem to suggest (for example, append but not write), and + * we always need to check the richacl. + */ + + if (IS_RICHACL(inode)) { + int error = check_richacl(inode, mask); + if (error != -EAGAIN) + return error; + } if (likely(uid_eq(current_fsuid(), inode->i_uid))) mode >>= 6; else { if (IS_POSIXACL(inode) && (mode & S_IRWXG)) { - int error = check_acl(inode, mask); + int error = check_posix_acl(inode, mask); if (error != -EAGAIN) return error; } diff --git a/fs/posix_acl.c b/fs/posix_acl.c index b0eb1dc..6dbddb6 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -100,13 +100,13 @@ struct posix_acl *get_acl(struct inode *inode, int type) { struct posix_acl *acl; + if (!IS_POSIXACL(inode)) + return NULL; + acl = get_cached_acl(inode, type); if (acl != ACL_NOT_CACHED) return acl; - if (!IS_POSIXACL(inode)) - return NULL; - /* * A filesystem can force a ACL callback by just never filling the * ACL cache. But normally you'd fill the cache either at inode -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:42:17 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BAC2F7FD7 for ; Thu, 5 Nov 2015 05:42:17 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id AB8F28F8033 for ; Thu, 5 Nov 2015 03:42:17 -0800 (PST) X-ASG-Debug-ID: 1446723735-04cb6c296c3a300001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 2k6jo71eKgMhij7H (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:42:16 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 6280EC18F420; Thu, 5 Nov 2015 11:42:15 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbw015870; Thu, 5 Nov 2015 06:42:08 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: "Aneesh Kumar K.V" , Andreas Gruenbacher Subject: [PATCH v14 21/22] ext4: Add richacl support Date: Thu, 5 Nov 2015 12:39:39 +0100 X-ASG-Orig-Subj: [PATCH v14 21/22] ext4: Add richacl support Message-Id: <1446723580-3747-22-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723735 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 From: "Aneesh Kumar K.V" Support the richacl permission model in ext4. The richacls are stored in "system.richacl" xattrs. Richacls need to be enabled by tune2fs or at file system create time. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Andreas Gruenbacher Reviewed-by: Andreas Dilger --- fs/ext4/Kconfig | 11 +++++ fs/ext4/Makefile | 1 + fs/ext4/file.c | 3 ++ fs/ext4/ialloc.c | 11 ++++- fs/ext4/inode.c | 12 ++++- fs/ext4/namei.c | 5 ++ fs/ext4/richacl.c | 142 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ fs/ext4/richacl.h | 40 +++++++++++++++ fs/ext4/xattr.c | 7 +++ 9 files changed, 229 insertions(+), 3 deletions(-) create mode 100644 fs/ext4/richacl.c create mode 100644 fs/ext4/richacl.h diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig index b46e9fc..65c5230 100644 --- a/fs/ext4/Kconfig +++ b/fs/ext4/Kconfig @@ -22,6 +22,17 @@ config EXT3_FS_POSIX_ACL This config option is here only for backward compatibility. ext3 filesystem is now handled by the ext4 driver. +config EXT4_FS_RICHACL + bool "Ext4 Rich Access Control Lists (EXPERIMENTAL)" + depends on EXT4_FS + select FS_RICHACL + help + Richacls are an implementation of NFSv4 ACLs, extended by file masks + to cleanly integrate into the POSIX file permission model. To learn + more about them, see http://www.bestbits.at/richacl/. + + If you don't know what Richacls are, say N. + config EXT3_FS_SECURITY bool "Ext3 Security Labels" depends on EXT3_FS diff --git a/fs/ext4/Makefile b/fs/ext4/Makefile index 75285ea..ea0d539 100644 --- a/fs/ext4/Makefile +++ b/fs/ext4/Makefile @@ -14,3 +14,4 @@ ext4-$(CONFIG_EXT4_FS_POSIX_ACL) += acl.o ext4-$(CONFIG_EXT4_FS_SECURITY) += xattr_security.o ext4-$(CONFIG_EXT4_FS_ENCRYPTION) += crypto_policy.o crypto.o \ crypto_key.o crypto_fname.o +ext4-$(CONFIG_EXT4_FS_RICHACL) += richacl.o diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 113837e..a03b4a5 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -30,6 +30,7 @@ #include "ext4_jbd2.h" #include "xattr.h" #include "acl.h" +#include "richacl.h" /* * Called when an inode is released. Note that this is different @@ -719,6 +720,8 @@ const struct inode_operations ext4_file_inode_operations = { .removexattr = generic_removexattr, .get_acl = ext4_get_acl, .set_acl = ext4_set_acl, + .get_richacl = ext4_get_richacl, + .set_richacl = ext4_set_richacl, .fiemap = ext4_fiemap, }; diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 619bfc1..9657b3a 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -27,6 +27,7 @@ #include "ext4_jbd2.h" #include "xattr.h" #include "acl.h" +#include "richacl.h" #include @@ -697,6 +698,14 @@ out: return ret; } +static inline int +ext4_new_acl(handle_t *handle, struct inode *inode, struct inode *dir) +{ + if (IS_RICHACL(dir)) + return ext4_init_richacl(handle, inode, dir); + return ext4_init_acl(handle, inode, dir); +} + /* * There are two policies for allocating an inode. If the new inode is * a directory, then a forward search is made for a block group with both @@ -1052,7 +1061,7 @@ got: if (err) goto fail_drop; - err = ext4_init_acl(handle, inode, dir); + err = ext4_new_acl(handle, inode, dir); if (err) goto fail_free_drop; diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 612fbcf..647f3c3 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -42,6 +42,7 @@ #include "xattr.h" #include "acl.h" #include "truncate.h" +#include "richacl.h" #include @@ -4638,6 +4639,14 @@ static void ext4_wait_for_tail_page_commit(struct inode *inode) } } +static inline int +ext4_acl_chmod(struct inode *inode, umode_t mode) +{ + if (IS_RICHACL(inode)) + return richacl_chmod(inode, inode->i_mode); + return posix_acl_chmod(inode, inode->i_mode); +} + /* * ext4_setattr() * @@ -4806,8 +4815,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr) ext4_orphan_del(NULL, inode); if (!rc && (ia_valid & ATTR_MODE)) - rc = posix_acl_chmod(inode, inode->i_mode); - + rc = ext4_acl_chmod(inode, inode->i_mode); err_out: ext4_std_error(inode->i_sb, error); if (!error) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 9f61e76..9b6e8b9 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -38,6 +38,7 @@ #include "xattr.h" #include "acl.h" +#include "richacl.h" #include /* @@ -3854,6 +3855,8 @@ const struct inode_operations ext4_dir_inode_operations = { .removexattr = generic_removexattr, .get_acl = ext4_get_acl, .set_acl = ext4_set_acl, + .get_richacl = ext4_get_richacl, + .set_richacl = ext4_set_richacl, .fiemap = ext4_fiemap, }; @@ -3865,4 +3868,6 @@ const struct inode_operations ext4_special_inode_operations = { .removexattr = generic_removexattr, .get_acl = ext4_get_acl, .set_acl = ext4_set_acl, + .get_richacl = ext4_get_richacl, + .set_richacl = ext4_set_richacl, }; diff --git a/fs/ext4/richacl.c b/fs/ext4/richacl.c new file mode 100644 index 0000000..d581be4 --- /dev/null +++ b/fs/ext4/richacl.c @@ -0,0 +1,142 @@ +/* + * Copyright IBM Corporation, 2010 + * Copyright (C) 2015 Red Hat, Inc. + * Author: Aneesh Kumar K.V , + * Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2.1 of the GNU Lesser General Public License + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + */ + +#include +#include +#include + +#include "ext4.h" +#include "ext4_jbd2.h" +#include "xattr.h" +#include "acl.h" +#include "richacl.h" + +struct richacl * +ext4_get_richacl(struct inode *inode) +{ + const int name_index = EXT4_XATTR_INDEX_RICHACL; + void *value = NULL; + struct richacl *acl = NULL; + int retval; + + retval = ext4_xattr_get(inode, name_index, "", NULL, 0); + if (retval > 0) { + value = kmalloc(retval, GFP_NOFS); + if (!value) + return ERR_PTR(-ENOMEM); + retval = ext4_xattr_get(inode, name_index, "", value, retval); + } + if (retval > 0) { + acl = richacl_from_xattr(&init_user_ns, value, retval); + if (acl == ERR_PTR(-EINVAL)) + acl = ERR_PTR(-EIO); + } else if (retval != -ENODATA && retval != -ENOSYS) { + acl = ERR_PTR(retval); + } + kfree(value); + + if (!IS_ERR(acl)) + set_cached_richacl(inode, acl); + + return acl; +} + +static int +__ext4_remove_richacl(handle_t *handle, struct inode *inode) +{ + const int name_index = EXT4_XATTR_INDEX_RICHACL; + int retval; + + retval = ext4_xattr_set_handle(handle, inode, name_index, "", + NULL, 0, 0); + if (!retval) + set_cached_richacl(inode, NULL); + return retval; +} + +static int +__ext4_set_richacl(handle_t *handle, struct inode *inode, struct richacl *acl) +{ + const int name_index = EXT4_XATTR_INDEX_RICHACL; + umode_t mode = inode->i_mode; + int retval, size; + void *value; + + if (richacl_equiv_mode(acl, &mode) == 0) { + inode->i_ctime = ext4_current_time(inode); + inode->i_mode = mode; + ext4_mark_inode_dirty(handle, inode); + return __ext4_remove_richacl(handle, inode); + } + + mode &= ~S_IRWXUGO; + mode |= richacl_masks_to_mode(acl); + + size = richacl_xattr_size(acl); + value = kmalloc(size, GFP_NOFS); + if (!value) + return -ENOMEM; + richacl_to_xattr(&init_user_ns, acl, value, size); + inode->i_mode = mode; + retval = ext4_xattr_set_handle(handle, inode, name_index, "", + value, size, 0); + kfree(value); + if (retval) + return retval; + + set_cached_richacl(inode, acl); + + return 0; +} + +int +ext4_set_richacl(struct inode *inode, struct richacl *acl) +{ + handle_t *handle; + int retval, retries = 0; + +retry: + handle = ext4_journal_start(inode, EXT4_HT_XATTR, + ext4_jbd2_credits_xattr(inode)); + if (IS_ERR(handle)) + return PTR_ERR(handle); + + if (acl) + retval = __ext4_set_richacl(handle, inode, acl); + else + retval = __ext4_remove_richacl(handle, inode); + + ext4_journal_stop(handle); + if (retval == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) + goto retry; + return retval; +} + +int +ext4_init_richacl(handle_t *handle, struct inode *inode, struct inode *dir) +{ + struct richacl *acl = richacl_create(&inode->i_mode, dir); + int error; + + error = PTR_ERR(acl); + if (IS_ERR(acl)) + return error; + if (acl) { + error = __ext4_set_richacl(handle, inode, acl); + richacl_put(acl); + } + return error; +} diff --git a/fs/ext4/richacl.h b/fs/ext4/richacl.h new file mode 100644 index 0000000..6fe9a92 --- /dev/null +++ b/fs/ext4/richacl.h @@ -0,0 +1,40 @@ +/* + * Copyright IBM Corporation, 2010 + * Copyright (C) 2015 Red Hat, Inc. + * Author Aneesh Kumar K.V + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2.1 of the GNU Lesser General Public License + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + */ + +#ifndef __FS_EXT4_RICHACL_H +#define __FS_EXT4_RICHACL_H + +#include + +#ifdef CONFIG_EXT4_FS_RICHACL + +extern struct richacl *ext4_get_richacl(struct inode *); +extern int ext4_set_richacl(struct inode *, struct richacl *); + +extern int ext4_init_richacl(handle_t *, struct inode *, struct inode *); + +#else /* CONFIG_EXT4_FS_RICHACL */ + +#define ext4_get_richacl NULL +#define ext4_set_richacl NULL + +static inline int +ext4_init_richacl(handle_t *handle, struct inode *inode, struct inode *dir) +{ + return 0; +} + +#endif /* CONFIG_EXT4_FS_RICHACL */ +#endif /* __FS_EXT4_RICHACL_H */ diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 16e28c0..4d79adb 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -55,6 +55,7 @@ #include #include #include +#include #include "ext4_jbd2.h" #include "ext4.h" #include "xattr.h" @@ -99,6 +100,9 @@ static const struct xattr_handler *ext4_xattr_handler_map[] = { #ifdef CONFIG_EXT4_FS_SECURITY [EXT4_XATTR_INDEX_SECURITY] = &ext4_xattr_security_handler, #endif +#ifdef CONFIG_EXT4_FS_RICHACL + [EXT4_XATTR_INDEX_RICHACL] = &richacl_xattr_handler, +#endif }; const struct xattr_handler *ext4_xattr_handlers[] = { @@ -111,6 +115,9 @@ const struct xattr_handler *ext4_xattr_handlers[] = { #ifdef CONFIG_EXT4_FS_SECURITY &ext4_xattr_security_handler, #endif +#ifdef CONFIG_EXT4_FS_RICHACL + &richacl_xattr_handler, +#endif NULL }; -- 2.5.0 From agruenba@redhat.com Thu Nov 5 05:42:24 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 41BE27FD7 for ; Thu, 5 Nov 2015 05:42:24 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3339A304053 for ; Thu, 5 Nov 2015 03:42:24 -0800 (PST) X-ASG-Debug-ID: 1446723742-04cb6c296d3a330001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id pNszCi1PzXGjEZpN (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 03:42:23 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 7FBE28F2FF; Thu, 5 Nov 2015 11:42:22 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-134.ams2.redhat.com [10.36.7.134]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5Bdfbx015870; Thu, 5 Nov 2015 06:42:15 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: "Aneesh Kumar K.V" , Andreas Gruenbacher Subject: [PATCH v14 22/22] ext4: Add richacl feature flag Date: Thu, 5 Nov 2015 12:39:40 +0100 X-ASG-Orig-Subj: [PATCH v14 22/22] ext4: Add richacl feature flag Message-Id: <1446723580-3747-23-git-send-email-agruenba@redhat.com> In-Reply-To: <1446723580-3747-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446723743 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 From: "Aneesh Kumar K.V" This feature flag selects richacl instead of POSIX ACL support on the filesystem. When this feature is off, the "acl" and "noacl" mount options control whether POSIX ACLs are enabled. When it is on, richacls are automatically enabled and using the "noacl" mount option leads to an error. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Andreas Gruenbacher --- fs/ext4/ext4.h | 6 ++++-- fs/ext4/super.c | 49 ++++++++++++++++++++++++++++++++++++++++--------- 2 files changed, 44 insertions(+), 11 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index fd1f28b..b97a3b1 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -991,7 +991,7 @@ struct ext4_inode_info { #define EXT4_MOUNT_UPDATE_JOURNAL 0x01000 /* Update the journal format */ #define EXT4_MOUNT_NO_UID32 0x02000 /* Disable 32-bit UIDs */ #define EXT4_MOUNT_XATTR_USER 0x04000 /* Extended user attributes */ -#define EXT4_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control Lists */ +#define EXT4_MOUNT_ACL 0x08000 /* Access Control Lists */ #define EXT4_MOUNT_NO_AUTO_DA_ALLOC 0x10000 /* No auto delalloc mapping */ #define EXT4_MOUNT_BARRIER 0x20000 /* Use block barriers */ #define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */ @@ -1582,6 +1582,7 @@ static inline int ext4_encrypted_inode(struct inode *inode) #define EXT4_FEATURE_INCOMPAT_LARGEDIR 0x4000 /* >2GB or 3-lvl htree */ #define EXT4_FEATURE_INCOMPAT_INLINE_DATA 0x8000 /* data in inode */ #define EXT4_FEATURE_INCOMPAT_ENCRYPT 0x10000 +#define EXT4_FEATURE_INCOMPAT_RICHACL 0x20000 #define EXT2_FEATURE_COMPAT_SUPP EXT4_FEATURE_COMPAT_EXT_ATTR #define EXT2_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \ @@ -1607,7 +1608,8 @@ static inline int ext4_encrypted_inode(struct inode *inode) EXT4_FEATURE_INCOMPAT_FLEX_BG| \ EXT4_FEATURE_INCOMPAT_MMP | \ EXT4_FEATURE_INCOMPAT_INLINE_DATA | \ - EXT4_FEATURE_INCOMPAT_ENCRYPT) + EXT4_FEATURE_INCOMPAT_ENCRYPT | \ + EXT4_FEATURE_INCOMPAT_RICHACL) #define EXT4_FEATURE_RO_COMPAT_SUPP (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \ EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \ EXT4_FEATURE_RO_COMPAT_GDT_CSUM| \ diff --git a/fs/ext4/super.c b/fs/ext4/super.c index a63c7b0..7457ea8 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1270,6 +1270,28 @@ static ext4_fsblk_t get_sb_block(void **data) return sb_block; } +static int enable_acl(struct super_block *sb) +{ + sb->s_flags &= ~(MS_POSIXACL | MS_RICHACL); + if (test_opt(sb, ACL)) { + if (EXT4_HAS_INCOMPAT_FEATURE(sb, + EXT4_FEATURE_INCOMPAT_RICHACL)) { +#ifdef CONFIG_EXT4_FS_RICHACL + sb->s_flags |= MS_RICHACL; +#else + return -EOPNOTSUPP; +#endif + } else { +#ifdef CONFIG_EXT4_FS_POSIX_ACL + sb->s_flags |= MS_POSIXACL; +#else + return -EOPNOTSUPP; +#endif + } + } + return 0; +} + #define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3)) static char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n" "Contact linux-ext4@vger.kernel.org if you think we should keep it.\n"; @@ -1416,9 +1438,9 @@ static const struct mount_opts { MOPT_NO_EXT2 | MOPT_DATAJ}, {Opt_user_xattr, EXT4_MOUNT_XATTR_USER, MOPT_SET}, {Opt_nouser_xattr, EXT4_MOUNT_XATTR_USER, MOPT_CLEAR}, -#ifdef CONFIG_EXT4_FS_POSIX_ACL - {Opt_acl, EXT4_MOUNT_POSIX_ACL, MOPT_SET}, - {Opt_noacl, EXT4_MOUNT_POSIX_ACL, MOPT_CLEAR}, +#if defined(CONFIG_EXT4_FS_POSIX_ACL) || defined(CONFIG_EXT4_FS_RICHACL) + {Opt_acl, EXT4_MOUNT_ACL, MOPT_SET}, + {Opt_noacl, EXT4_MOUNT_ACL, MOPT_CLEAR}, #else {Opt_acl, 0, MOPT_NOSUPPORT}, {Opt_noacl, 0, MOPT_NOSUPPORT}, @@ -1466,6 +1488,13 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, #endif switch (token) { case Opt_noacl: +#ifdef CONFIG_EXT4_FS_RICHACL + if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RICHACL)) { + ext4_msg(sb, KERN_ERR, "Mount option \"%s\" incompatible " + "with richacl feature", opt); + return -1; + } +#endif case Opt_nouser_xattr: ext4_msg(sb, KERN_WARNING, deprecated_msg, opt, "3.5"); break; @@ -3576,8 +3605,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) set_opt(sb, NO_UID32); /* xattr user namespace & acls are now defaulted on */ set_opt(sb, XATTR_USER); -#ifdef CONFIG_EXT4_FS_POSIX_ACL - set_opt(sb, POSIX_ACL); +#if defined(CONFIG_EXT4_FS_POSIX_ACL) || defined(CONFIG_EXT4_FS_RICHACL) + set_opt(sb, ACL); #endif /* don't forget to enable journal_csum when metadata_csum is enabled. */ if (ext4_has_metadata_csum(sb)) @@ -3660,8 +3689,9 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) sb->s_iflags |= SB_I_CGROUPWB; } - sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | - (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0); + err = enable_acl(sb); + if (err) + goto failed_mount; if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV && (EXT4_HAS_COMPAT_FEATURE(sb, ~0U) || @@ -4981,8 +5011,9 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED) ext4_abort(sb, "Abort forced by user"); - sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | - (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0); + err = enable_acl(sb); + if (err) + goto restore_opts; es = sbi->s_es; -- 2.5.0 From prvs=875189c0cb=clm@fb.com Thu Nov 5 06:11:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F40C97F4E for ; Thu, 5 Nov 2015 06:11:08 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id E42568F8035 for ; Thu, 5 Nov 2015 04:11:05 -0800 (PST) X-ASG-Debug-ID: 1446725464-04cbb02423439a0001-NocioJ Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com [67.231.145.42]) by cuda.sgi.com with ESMTP id FoUCEhJQbzDzURNZ (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 04:11:04 -0800 (PST) X-Barracuda-Envelope-From: prvs=875189c0cb=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.145.42 X-ASG-Whitelist: EmailCat (corporate) Received: from pps.filterd (m0044008.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.15.0.59/8.15.0.59) with SMTP id tA5C9CtQ018861; Thu, 5 Nov 2015 04:11:03 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=date : from : to : subject : message-id : references : mime-version : content-type : in-reply-to; s=facebook; bh=SLsRcS4J6G2CkgjiwFaI5ra63JeJEZqwvhmcJGmY7MY=; b=QXr+rh8LgWbVaJahrddHt2ACI8q01zJsyo1brTWg3GzWz3rdigzZvaRJzEO6b5Q1If0x rROrx4SY+PjJsY5Rpn9RWFzdxwF2XvvwR1scESgug7heKmn62W9W5SASf+IeigmTYO9Y Yze74nMGlDs4zpbkIaSSEVkGTVcwotkWFL0= Received: from mail.thefacebook.com ([199.201.64.23]) by mx0a-00082601.pphosted.com with ESMTP id 1xy37sr3cp-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Thu, 05 Nov 2015 04:11:03 -0800 Received: from localhost (192.168.52.123) by mail.thefacebook.com (192.168.16.14) with Microsoft SMTP Server (TLS) id 14.3.248.2; Thu, 5 Nov 2015 04:11:01 -0800 Date: Thu, 5 Nov 2015 07:10:59 -0500 From: Chris Mason To: Dave Chinner , , Tejun Heo Subject: Re: [PATCH RFC] use WQ_MEM_RECLAIM for m_log_workqueue Message-ID: <20151105121059.GJ5458@ret.masoncoding.com> X-ASG-Orig-Subj: Re: [PATCH RFC] use WQ_MEM_RECLAIM for m_log_workqueue References: <20151104185103.GC5458@ret.masoncoding.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20151104185103.GC5458@ret.masoncoding.com> User-Agent: Mutt/1.5.23.1 (2014-03-12) X-Originating-IP: [192.168.52.123] X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2015-11-05_11:,, signatures=0 X-Barracuda-Connect: mx0a-00082601.pphosted.com[67.231.145.42] X-Barracuda-Start-Time: 1446725464 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 04, 2015 at 01:51:03PM -0500, Chris Mason wrote: > I think we should be using WQ_MEM_RECLAIM to make sure this thread pool > makes progress when we're not able to allocate new workers. Thinking harder, it's probably best to just flag them all WQ_MEM_RECLAIM. This is what btrfs does, and it saves you from painful discoveries about how different queues depend on each other. Tejun did verify in the dump that progress on m_log_workqueue was stuck waiting for more threads. I'll start testing and send a v2. -chris From trond.myklebust@primarydata.com Thu Nov 5 09:57:12 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E44947F76 for ; Thu, 5 Nov 2015 09:57:12 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id C39D4304059 for ; Thu, 5 Nov 2015 07:57:09 -0800 (PST) X-ASG-Debug-ID: 1446739024-04cbb024224d920001-NocioJ Received: from mail-ob0-f170.google.com (mail-ob0-f170.google.com [209.85.214.170]) by cuda.sgi.com with ESMTP id gvGktpjbaQAsttgY (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 05 Nov 2015 07:57:04 -0800 (PST) X-Barracuda-Envelope-From: trond.myklebust@primarydata.com X-Barracuda-Apparent-Source-IP: 209.85.214.170 Received: by obbza9 with SMTP id za9so69598082obb.1 for ; Thu, 05 Nov 2015 07:57:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=primarydata_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=bID5xS8FXvCmXUDpOKRa+5Ke6g86fjmxRYzMihodbpY=; b=IoyoBTivorKyxIaWYmt/1W0EiFm8WtPeWfkavadwc/jpwVeUOlaWfubKE0kzBrwUFq iROZjxfcxf0dqKGGlhdVQY8c9xM7527aYZJoe/HWQZV5dDkYraoe20mdFHGTqIkzlJNo igmk4kIXYvkllnk4wZBOw5OT4J+sa5I3fyueUdr/S3SbdwAsDJvWPwGddXzmhB5eNxVo WZUyFpcdQXC65G/wZ4IcolbVKBSDHAxoic1gtFriVOzdBI5QWw7sSir6d5NhD+kyqaDj OGQMO6WQu3tqkt5qAclOh9we98Z23wfxvFFwJ5L6aTVPnDM1vtabeSEBZ4jfwvz/zaJ+ ZA9A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=bID5xS8FXvCmXUDpOKRa+5Ke6g86fjmxRYzMihodbpY=; b=FJtyJT6LZ/oLDowuu9ogJZiWObN7B6x9YOXGiSz+Cs2h7jiO8or6+y7FWWP6D9bHaU tXcBoQiFRbBDxM3v7gS/x1fAzFfUKM1mRKFqj5PQ+c8cdhNwL/jexw9lAh837bXUkHv1 iZWNy6+mlFI5OFQ00/uumei6+sN5hYHaXQAf5QObMBY3cTzv/aBFwqNrLHY96WKRVhf+ sSr3eEHA0cRpbp5VGZ/z/moBV/Fe+qmurGoSoSogR/z/5y57mKpqy2JCF26Bq6FTIwb3 8NK1CaVO/2BwPcYwxl+CoUhS5IJEMeayCXFyX8EIGcCMTJYq2ba4hAY0PsAPOns1wyFS 8Y7A== X-Gm-Message-State: ALoCoQlI9bFS8ZACTtdroHDfRP3ffczsUbKTg9iQNwUIaUj0XDMRQ3v5EsxjhpOeG29eKKJcCUyr MIME-Version: 1.0 X-Received: by 10.182.176.102 with SMTP id ch6mr4915979obc.31.1446739024101; Thu, 05 Nov 2015 07:57:04 -0800 (PST) Received: by 10.202.95.7 with HTTP; Thu, 5 Nov 2015 07:57:04 -0800 (PST) In-Reply-To: References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-46-git-send-email-agruenba@redhat.com> Date: Thu, 5 Nov 2015 10:57:04 -0500 Message-ID: Subject: Re: [PATCH v13 45/51] sunrpc: Allow to demand-allocate pages to encode into From: Trond Myklebust X-ASG-Orig-Subj: Re: [PATCH v13 45/51] sunrpc: Allow to demand-allocate pages to encode into To: Andreas Gruenbacher Cc: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , Linux Kernel Mailing List , Linux FS-devel Mailing List , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Mailing List Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-ob0-f170.google.com[209.85.214.170] X-Barracuda-Start-Time: 1446739024 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24136 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Thu, Nov 5, 2015 at 6:07 AM, Andreas Gruenbacher wrote: > Trond, > > On Tue, Nov 3, 2015 at 5:25 PM, Trond Myklebust > wrote: >> On Tue, Nov 3, 2015 at 10:17 AM, Andreas Gruenbacher >> wrote: >>> When encoding large, variable-length objects such as acls into xdr_bufs, >>> it is easier to allocate buffer pages on demand rather than precomputing >>> the required buffer size. >> >> NACK. We're not doing allocations from inside the XDR encoders. This >> can and should be done before calling into the SUNRPC layer. > > an XDR-encoded ACL can be up to 64k (16 pages) in size. In practice, > large ACLs like that will almost never occur and almost all ACLs will > fit into a single page though. > > The XDR-encoded ACL contains strings for the user and group names > which need to be looked up when the idmapper is used. Those lookups > are somewhat expensive; in addition, the lookup results can change > over time. When precomputing the size, allocating space, and then > encoding the ACL, we could run out of space when encoding. > > So we could always allocate the maximum 16 pages, encode the acl, and > free the unused pages. This would be rather wasteful though. > > Given how simple it is to allocate pages as we go, this seems the > better choice here. This doesn't break any existing code either; NULL > page pointers would have oopsed in xdr_get_next_encode_buffer before. > > From the memory management point of view, there is no difference in > preallocating GFP_NOFS pages and allocating them on demand; the pages > are allocated in the same task and locking context in both cases. > > So could you please explain why you object to this change? > Allocating memory deep in the bowels of the RPC code with the expectation that it will be freed by the caller of the RPC request is a layering violation of the ugliest sort. How is anyone who is unfamiliar with the code going to be able to understand what is going on without tracing through 1000 lines of code to spot where the allocation is happening? Aside from that, we do not want any non-critical blocking while holding the RPC socket lock. Your allocation request will block all further traffic to the server until it is satisfied. That includes blocking page writeback, which might actually free up memory to satisfy the allocation. As I said above, there is no reason whatsoever to have to do all this inside encode_setacl(). The entire ACL encoding into pages can be done before even calling into the RPC layer, just like we do today. From hanno@hboeck.de Thu Nov 5 10:46:49 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id ED2077F61 for ; Thu, 5 Nov 2015 10:46:48 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 74E76AC001 for ; Thu, 5 Nov 2015 08:46:42 -0800 (PST) X-ASG-Debug-ID: 1446741997-04cbb0242451e40001-NocioJ Received: from zucker2.schokokeks.org (zucker2.schokokeks.org [178.63.68.90]) by cuda.sgi.com with ESMTP id eENsDuAbIiFa6hmV (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 05 Nov 2015 08:46:38 -0800 (PST) X-Barracuda-Envelope-From: hanno@hboeck.de X-Barracuda-Apparent-Source-IP: 178.63.68.90 Received: from pc1 (0x3ec66991.inet.dsl.telianet.dk [::ffff:62.198.105.145]) (AUTH: LOGIN hanno-default@schokokeks.org, TLS: TLSv1/SSLv3,128bits,ECDHE-RSA-AES128-GCM-SHA256) by zucker.schokokeks.org with ESMTPSA; Thu, 05 Nov 2015 17:46:36 +0100 id 0000000000000039.00000000563B87EC.00005854 Date: Thu, 5 Nov 2015 17:47:32 +0100 From: Hanno =?UTF-8?B?QsO2Y2s=?= To: xfs@oss.sgi.com Subject: Several bugs in xfs-progs when parsing invalid input Message-ID: <20151105174732.2378bc35@pc1> X-ASG-Orig-Subj: Several bugs in xfs-progs when parsing invalid input X-Mailer: Claws Mail 3.13.0 (GTK+ 2.24.28; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="=_zucker.schokokeks.org-22612-1446741996-0001-2" X-Barracuda-Connect: zucker2.schokokeks.org[178.63.68.90] X-Barracuda-Start-Time: 1446741998 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24136 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This is a MIME-formatted message. If you see this text it means that your E-mail software does not support MIME-formatted messages. --=_zucker.schokokeks.org-22612-1446741996-0001-2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi, A while ago I reported a couple of bugs into your bugtracker about issues in xfs_repair that I found through fuzzing (with the tool american fuzzy lop). http://oss.sgi.com/bugzilla/show_bug.cgi?id=3D1119 null pointer access http://oss.sgi.com/bugzilla/show_bug.cgi?id=3D1120 out of bounds heap read access http://oss.sgi.com/bugzilla/show_bug.cgi?id=3D1121 http://oss.sgi.com/bugzilla/show_bug.cgi?id=3D1122 2x assert When opening these bugs I got an error message. I then contacted your support and almost two months(!) later I got a reply telling me that I should not use bugzilla, instead I should report bugs to this mailing list. Your webpage however clearly states that I should use bugzilla: http://oss.sgi.com/projects/xfs/ This is all a bit ridiculous. If you don't want people to use your bugzilla don't say so on your webpage and preferrably disable the creation of new bugs. Anyway: Please have a look at the bugs I reported (and once they're fixed I'll happily re-test the code to see if there are more issues that can be found via fuzzing). --=20 Hanno B=C3=B6ck http://hboeck.de/ mail/jabber: hanno@hboeck.de GPG: BBB51E42 --=_zucker.schokokeks.org-22612-1446741996-0001-2 Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCgAGBQJWO4gkAAoJEKWIAHK7tR5C+wwP/j1hhfcCHf0mHC2fK5Yldwjq nrIdfg2oVHLLno8UUrwiOJTdfsefj0mX4FxTOzqO/WxQDD9Md9me37/YOme5TRgN CSTjOrVTN9oie1m2PjOpSrfFrX1IwbkkaX/xN4YiFOs86lBY5enf4KZCfWhRjWgA mqJhgTvgKLOR87Cmz6gQijZ1plRloEkEejVqEbC1dBQ1AiiJUc648AzbVStp6LVM +9Jr16F1ctHmDbsb6zKlRSFBre1MX/JsTCn+E3H4MiabiRBoigU+/Ie8P0jX9WoT ML/0ix85eOQH6S/q4aEnUjNiSC71oovvOZ6wIQeCg2r+wNjtAtVdxD5ADx7kNOxI GD6ASU+dAfE4i65tklWXAu6WdCKF5YbHJez/aoLcxYQDPbUSw1hK1V/agQtvRgjk LbRwfYeLcykIV2IxidPsjg71opBjqdZrzbu96uiQDdY9xbKL5RFf2Jt8hjF8z6xo seLNokg7cHZd2eBEbmOS1WGgjnEWboVDn3zdu9s2mnMgpAaR/JPtpS95qP+uYHWV RR2rL865plrReFfUZYpj7dTHKXcgP8KknHyTC1zE+AYoNyoJvH2j/WeCrsBLYkYw WfzacmLGrMfhApvi7+wrqpWW6J2wDnZ6KBhgx4KAtGeIJIUr2O/zA12dTm0VrVvZ i+DP92wP9RY1VyuV6/vJ =c32S -----END PGP SIGNATURE----- --=_zucker.schokokeks.org-22612-1446741996-0001-2-- From jmoyer@redhat.com Thu Nov 5 13:49:30 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 80B967F8D for ; Thu, 5 Nov 2015 13:49:30 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id CD9B0AC001 for ; Thu, 5 Nov 2015 11:49:29 -0800 (PST) X-ASG-Debug-ID: 1446752968-04cbb024245d610001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 3QyEVUC55SHGagLy (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 05 Nov 2015 11:49:28 -0800 (PST) X-Barracuda-Envelope-From: jmoyer@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id C00B2C0D61A9; Thu, 5 Nov 2015 19:49:25 +0000 (UTC) Received: from segfault.boston.devel.redhat.com (segfault.boston.devel.redhat.com [10.19.60.26]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA5JnL6i001419 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 5 Nov 2015 14:49:22 -0500 From: Jeff Moyer To: Dave Chinner Cc: Ross Zwisler , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@ml01.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , axboe@kernel.dk Subject: Re: [RFC 00/11] DAX fsynx/msync support References: <1446149535-16200-1-git-send-email-ross.zwisler@linux.intel.com> <20151030035533.GU19199@dastard> <20151030183938.GC24643@linux.intel.com> <20151101232948.GF10656@dastard> <20151102201029.GI10656@dastard> <20151105083309.GJ19199@dastard> X-ASG-Orig-Subj: Re: [RFC 00/11] DAX fsynx/msync support X-PGP-KeyID: 1F78E1B4 X-PGP-CertKey: F6FE 280D 8293 F72C 65FD 5A58 1FF8 A7CA 1F78 E1B4 X-PCLoadLetter: What the f**k does that mean? Date: Thu, 05 Nov 2015 14:49:21 -0500 In-Reply-To: <20151105083309.GJ19199@dastard> (Dave Chinner's message of "Thu, 5 Nov 2015 19:33:09 +1100") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446752968 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Dave Chinner writes: >> But this part is not. It is up to the I/O scheduler to decide when to >> dispatch requests. It can hold on to them for a variety of reasons. >> Flush requests, however, do not go through the I/O scheduler. At the > > That's pure REQ_FLUSH bios, right? Aren't data IOs with > REQ_FLUSH|REQ_FUA sorted like any other IO? No, they also go through the flush machinery, and so short-circuit the I/O scheduler. >> Des xfs rely on this model for correctness? If so, I'd say we've got a >> problem > > No, it doesn't. The XFS integrity model doesn't trust the IO layers > to tell the truth about IO ordering and completion or for it's > developers to fully understand how IO layer ordering works. :P > > i.e. we wait for full completions of all dependent IO before issuing > flushes or log writes that use REQ_FLUSH|REQ_FUA semantics to ensure > the dependent IOs are fully caught by the cache flushes... OK, phew! ;-) -Jeff From axboe@kernel.dk Thu Nov 5 14:54:27 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E92E17F69 for ; Thu, 5 Nov 2015 14:54:26 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 87CBFAC001 for ; Thu, 5 Nov 2015 12:54:23 -0800 (PST) X-ASG-Debug-ID: 1446756861-04bdf03f055c830001-NocioJ Received: from mail-io0-f171.google.com (mail-io0-f171.google.com [209.85.223.171]) by cuda.sgi.com with ESMTP id 1XbSe6GxNEZRJLNk (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 05 Nov 2015 12:54:21 -0800 (PST) X-Barracuda-Envelope-From: axboe@kernel.dk X-Barracuda-RBL-Trusted-Forwarder: 209.85.223.171 Received: by iodd200 with SMTP id d200so103536260iod.0 for ; Thu, 05 Nov 2015 12:54:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel_dk.20150623.gappssmtp.com; s=20150623; h=subject:to:references:cc:from:message-id:date:user-agent :mime-version:in-reply-to:content-type:content-transfer-encoding; bh=MBzeWYsf6lngQ+jiU950oq/SOS9HaWr70k/TpYIVqiA=; b=OZo7Me1hQLazE0C7QdzB5+wc+qnYuuW/dREr2NLqxMCrk5wRCttcDCXaeyw79HuJHv LCeuaD/SrVrK23y83bJinaUfpjk1gSK3VXYJ0bfm5AdBWhuYrhpAzm83+pvJ5EAzlRIk 5hR+IvQqP78rWDMmWdORBA+l9Fl+uBzw0TBYEV/bjAxbnne4ONRpCmu0AplNy8vMZrQG lakWUN2gp+S/8mD/SHsfNEsiSDTr2rY8wNVpxPbJFX7s4cM2rZzrPzFGdbDYD/9FYlHK ypa4bFdjisRYq0UEbfgGn6fX73pA/Y2DWWljiIQ5JNayj+QeyF/hHYlubVwpxH3at+rJ Ga/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-type :content-transfer-encoding; bh=MBzeWYsf6lngQ+jiU950oq/SOS9HaWr70k/TpYIVqiA=; b=Ogyi1WcygoZ0zD0yPJdr6XFk0nSeoBKEJ3YnSeHXoOJVkOGrqrpfOa/TejAz5J5/R2 +Bp/fMBGN3A2sPYjqVoQZ/LEiAJZrVxNcuds+Wz+eJaAqkXWmf1WLZ9xdz1y14MwkoLt ZEbIFwoGIIpK40RTDl4K+L450WK07YQivZ/gJpLcBIEU1w/MOegRFD8Z9TWZyn/qcAk0 coHvgJnLxxSko7i+ouhjcTdWPyNJwyYatWjEkw480LgbxrKZwwhQK9e2PZUVwDmvBumO kYKLN6+e660Z/o8blPrWnP2qiFYigxwkwgu2WgW9gN/Tr+/KFel8FelSMCFaZCaWVRfQ /wGg== X-Gm-Message-State: ALoCoQl/wOSLx7J4uZfIzcUd8FTbZxirfoyWPhW0C6VTeSP8vcjNPFTA4MgVeE0wMmVcizKnpDWP X-Received: by 10.107.128.137 with SMTP id k9mr12188928ioi.162.1446756861295; Thu, 05 Nov 2015 12:54:21 -0800 (PST) Received: from [192.168.1.120] ([216.160.245.98]) by smtp.gmail.com with ESMTPSA id l4sm241900igx.12.2015.11.05.12.54.19 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 05 Nov 2015 12:54:20 -0800 (PST) Subject: Re: [RFC 00/11] DAX fsynx/msync support X-Barracuda-BBL-IP: 192.168.1.120 To: Dave Chinner , Jeff Moyer X-ASG-Orig-Subj: Re: [RFC 00/11] DAX fsynx/msync support References: <1446149535-16200-1-git-send-email-ross.zwisler@linux.intel.com> <20151030035533.GU19199@dastard> <20151030183938.GC24643@linux.intel.com> <20151101232948.GF10656@dastard> <20151102201029.GI10656@dastard> <20151105083309.GJ19199@dastard> Cc: Ross Zwisler , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@ml01.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox From: Jens Axboe Message-ID: <563BC1FB.60004@kernel.dk> Date: Thu, 5 Nov 2015 13:54:19 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151105083309.GJ19199@dastard> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail-io0-f171.google.com[209.85.223.171] X-Barracuda-Start-Time: 1446756861 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24141 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On 11/05/2015 01:33 AM, Dave Chinner wrote: >> Des xfs rely on this model for correctness? If so, I'd say we've got a >> problem > > No, it doesn't. The XFS integrity model doesn't trust the IO layers > to tell the truth about IO ordering and completion or for it's > developers to fully understand how IO layer ordering works. :P That's good, because the storage developers simplified the model so that fs developers would be able to get and use it. > i.e. we wait for full completions of all dependent IO before issuing > flushes or log writes that use REQ_FLUSH|REQ_FUA semantics to ensure > the dependent IOs are fully caught by the cache flushes... ... which is what you are supposed to do, that's how it works. -- Jens Axboe From ross.zwisler@linux.intel.com Thu Nov 5 17:48:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 42C547F86 for ; Thu, 5 Nov 2015 17:48:33 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 321FA8F804B for ; Thu, 5 Nov 2015 15:48:30 -0800 (PST) X-ASG-Debug-ID: 1446767308-04cb6c296a62ee0001-NocioJ Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by cuda.sgi.com with ESMTP id oqSjCadGPpgeZL19 for ; Thu, 05 Nov 2015 15:48:28 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 134.134.136.24 X-ASG-Whitelist: EmailCat (corporate) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP; 05 Nov 2015 15:48:29 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,249,1444719600"; d="scan'208";a="828377962" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.156]) by fmsmga001.fm.intel.com with ESMTP; 05 Nov 2015 15:48:28 -0800 Date: Thu, 5 Nov 2015 16:48:27 -0700 From: Ross Zwisler To: Dave Chinner Cc: xfs@oss.sgi.com, ross.zwisler@linux.intel.com, jack@suse.cz Subject: Re: [PATCH 0/6 V2] xfs: upfront block zeroing for DAX Message-ID: <20151105234827.GA5771@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH 0/6 V2] xfs: upfront block zeroing for DAX References: <1445225238-30413-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1445225238-30413-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: mga09.intel.com[134.134.136.24] X-Barracuda-Start-Time: 1446767308 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Oct 19, 2015 at 02:27:12PM +1100, Dave Chinner wrote: > Hi folks, > > This is an updated patch set that was first posted here: > > http://oss.sgi.com/archives/xfs/2015-10/msg00006.html > > I've dropped the DAX locking revert patch from it; that's on it's > way to Linus via other channels and is essentially independent to > this set of XFS changes. > > The only real change in the XFS code between the two versions is the > addition of XFS_TRANS_RESERVE in the DAX path in > xfs_iomap_write_direct() to allow it to dip into the reserve block > pool for unwritten extent conversion rather than reporting ENOSPC. > > Patches are against 4.3-rc5 + XFS for-next branch. > > -Dave. Hey Dave, I was going to start testing these, but I'm having trouble finding a baseline where they apply cleanly. It looks like xfs/for-next already contains v1 of the series, and they don't seem to apply cleanly to the current xfs/xfs-misc-fixes-for-4.4-2 nor to v4.3. The xfs repo I'm looking at is git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git What am I missing? Thanks, - Ross From alau2@cisco.com Thu Nov 5 20:06:51 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 588FA7F86 for ; Thu, 5 Nov 2015 20:06:51 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id B4DE9AC004 for ; Thu, 5 Nov 2015 18:06:47 -0800 (PST) X-ASG-Debug-ID: 1446775604-04cbb024256f340001-NocioJ Received: from alln-iport-6.cisco.com (alln-iport-6.cisco.com [173.37.142.93]) by cuda.sgi.com with ESMTP id SzAZy3uQsjZxaK70 (version=TLSv1 cipher=IDEA-CBC-SHA bits=128 verify=NO) for ; Thu, 05 Nov 2015 18:06:44 -0800 (PST) X-Barracuda-Envelope-From: alau2@cisco.com X-Barracuda-Apparent-Source-IP: 173.37.142.93 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=2579; q=dns/txt; s=iport; t=1446775605; x=1447985205; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-transfer-encoding:mime-version; bh=RC6GgwgeCzK77D+160/7w7wtJGbWwmh+aQYm8fhWo4U=; b=R9QknTpX67IgLrCyVErfvo5TbnhLJJ8YKaLIIYhJ769+dqXIF33UGiFe pqgVqSlbTZf6EesSBLtjvU5+zUWCn7aO72Y0AuWP2FnO3OmHtWlFMedbz vzm6rephN/7Niyu96dUsNd4QMhbSOFGOab9ylZhbKnTVts0AxQ+kyE4sK 0=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0APAgCeCjxW/40NJK1EGoM7U28GvgMBDYFgJYVrAoE9OBQBAQEBAQEBgQqENQEBAQQ6PwwEAgEIDgMEAQEBHgkHMhQJCAIEDgUIiCYNO8BEAQEBAQEBAQEBAQEBAQEBAQEBAQEBGItSiTkFlkgBhRyHf4Fhh2SFPI1HAR8BAUKEBHIBAQEBhAmBBwEBAQ X-IronPort-AV: E=Sophos;i="5.20,250,1444694400"; d="scan'208";a="205436333" Received: from alln-core-8.cisco.com ([173.36.13.141]) by alln-iport-6.cisco.com with ESMTP; 06 Nov 2015 02:06:44 +0000 Received: from XCH-ALN-020.cisco.com (xch-aln-020.cisco.com [173.36.7.30]) by alln-core-8.cisco.com (8.14.5/8.14.5) with ESMTP id tA626hs4006852 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Fri, 6 Nov 2015 02:06:43 GMT Received: from xch-aln-020.cisco.com (173.36.7.30) by XCH-ALN-020.cisco.com (173.36.7.30) with Microsoft SMTP Server (TLS) id 15.0.1104.5; Thu, 5 Nov 2015 20:06:42 -0600 Received: from xch-aln-020.cisco.com ([173.36.7.30]) by XCH-ALN-020.cisco.com ([173.36.7.30]) with mapi id 15.00.1104.000; Thu, 5 Nov 2015 20:06:42 -0600 From: "Al Lau (alau2)" To: Dave Chinner CC: "xfs@oss.sgi.com" Subject: RE: mkfs.xfs -n size=65536 Thread-Topic: mkfs.xfs -n size=65536 X-ASG-Orig-Subj: RE: mkfs.xfs -n size=65536 Thread-Index: AdEC1680Gy4Y381SQNu4wXlh8fvUqwCn49kAAAhmBND///HgAIAAThiA///B5ACAACU6gIAAHJQA/9sHP2A= Date: Fri, 6 Nov 2015 02:06:42 +0000 Message-ID: <0da393a1fb794f73ba7ad4a74e0b6fc9@XCH-ALN-020.cisco.com> References: <0F279340237AA148AD7E3C6A70561A5E01266BE7@xmb-rcd-x14.cisco.com> <20151013002308.GI27164@dastard> <8a1b26a3b869448e805485c529c447a4@XCH-ALN-020.cisco.com> <20151013033304.GL27164@dastard> <20151013043016.GE31326@dastard> <20151013082548.GH31326@dastard> In-Reply-To: <20151013082548.GH31326@dastard> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.128.10.57] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Barracuda-Connect: alln-iport-6.cisco.com[173.37.142.93] X-Barracuda-Start-Time: 1446775604 X-Barracuda-Encrypted: IDEA-CBC-SHA X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.12 X-Barracuda-Spam-Status: No, SCORE=0.12 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085, DKIM_SIGNED, DKIM_VERIFIED, THREAD_INDEX, THREAD_TOPIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24151 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.10 BSF_SC0_SA085 Custom Rule SA085 We run the systemtap script in the background. The kmem_alloc message appe= ared in the /var/log/messages. The call stack is captured by the systemtap= is follow. 0xffffffffa02a0030 : xfs_err+0x0/0x90 [xfs] 0xffffffffa02a853d : kmem_alloc+0xbd/0xf0 [xfs] 0xffffffffa02eeb6e : xfs_log_commit_cil+0x39e/0x4c0 [xfs] 0xffffffffa02a7d3c : xfs_trans_commit+0x11c/0x240 [xfs] 0xffffffffa02dd353 : xfs_remove+0x343/0x380 [xfs] 0xffffffffa029d93a : xfs_vn_unlink+0x5a/0xc0 [xfs] 0xffffffff811bde51 0xffffffff811be056 (inexact) 0xffffffff811b166e (inexact) 0xffffffff810823cc (inexact) 0xffffffff811c11b6 (inexact) 0xffffffff815f3219 (inexact) Nov 5 18:13:21 csx-ceph1-003 kernel: XFS: possible memory allocation deadl= ock in kmem_alloc (mode:0x8250) #! /usr/bin/env stap probe module("xfs").function("xfs_err").call { print_backtrace(); } # nohup stap -o /var/systemtap/kmem_alloc_bt.out backtrace.stp & Redhat support case is https://access.redhat.com/support/cases/#/case/01500= 239 Thanks, -Al -----Original Message----- From: Dave Chinner [mailto:david@fromorbit.com]=20 Sent: Tuesday, October 13, 2015 1:26 AM To: Al Lau (alau2) Cc: xfs@oss.sgi.com Subject: Re: mkfs.xfs -n size=3D65536 On Tue, Oct 13, 2015 at 07:28:48AM +0000, Al Lau (alau2) wrote: > Are the xfs_db and filefrag the utilities to use to determine file fragme= ntation? >=20 > # df -k /var/kmem_alloc > Filesystem 1K-blocks Used Available Use% Mounted on > /dev/sdf1 3905109820 3359385616 545724204 87% /var/kmem_alloc > # xfs_db -r -c frag /dev/sdf1 > actual 438970, ideal 388168, fragmentation factor 11.57% http://xfs.org/index.php/XFS_FAQ#Q:_The_xfs_db_.22frag.22_command_says_I.27= m_over_50.25._Is_that_bad.3F > # ls -l fragmented > -rw-r--r--. 1 root root 3360239878657 Oct 13 07:25 fragmented #=20 > filefrag fragmented > fragmented: 385533 extents found That's a lot of extents, but for a 3TB sparse file that is being written in= random 4k blocks, that's expected and there's little you can do about it. = Preallocation of the file or use of extent size hints will reduce physical = fragmentation, but you only want to use those if the file will eventually b= ecome non-sparse and sequential read IO performance is required... i.e. the definition of "fragmented" really depends on the application, IO p= atterns and whether the current physical layout is acheiving the desired pe= rformance attributes of the file in question.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From rostnefttorg@yandex.ru Fri Nov 6 04:39:53 2015 Return-Path: X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 33C657F75 for ; Fri, 6 Nov 2015 04:39:53 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id BDD70304039 for ; Fri, 6 Nov 2015 02:39:48 -0800 (PST) X-ASG-Debug-ID: 1446806368-04bdf03f037b190001-NocioJ Received: from 150-222-216-178.omsk.mts.ru ([95.213.182.46]) by cuda.sgi.com with ESMTP id Vzms6eg7kXEq4ajh for ; Fri, 06 Nov 2015 02:39:29 -0800 (PST) X-Barracuda-Envelope-From: rostnefttorg@yandex.ru X-Barracuda-Apparent-Source-IP: 95.213.182.46 From: "=?utf-8?B?0J7Qu9C10LMg0JLQu9Cw0LTQuNC80LjRgNC+0LLQuNGH?=" Subject: =?utf-8?B?0J7QntCeINCg0J7QodCi0J3QldCk0KLQldCi0J7QoNCTINC/0YDQtdC00LvQvtC20LXQvdC40LUg0L/QviDQvdC10YTRgtC10L/RgNC+0LTRg9C60YLQsNC8?= To: "xfs" X-ASG-Orig-Subj: =?utf-8?B?0J7QntCeINCg0J7QodCi0J3QldCk0KLQldCi0J7QoNCTINC/0YDQtdC00LvQvtC20LXQvdC40LUg0L/QviDQvdC10YTRgtC10L/RgNC+0LTRg9C60YLQsNC8?= Content-Type: multipart/mixed; boundary="1XmTJMNGXzXxUECqr=_fLDDp5FC8IM6PQ5" MIME-Version: 1.0 Reply-To: "partner-neft@yandex.ru" Organization: =?utf-8?B?0J7QntCeINCg0L7RgdC90LXRhNGC0LXRgtC+0YDQsw==?= Date: Fri, 6 Nov 2015 13:39:28 +0300 Priority: urgent X-Priority: 1 Importance: high X-Confirm-Reading-To: partner-neft@yandex.ru Disposition-Notification-To: partner-neft@yandex.ru Return-Receipt-To: partner-neft@yandex.ru X-Antivirus: avast! (VPS 151105-0, 05.11.2015), Outbound message X-Antivirus-Status: Not-Tested X-Barracuda-Connect: UNKNOWN[95.213.182.46] X-Barracuda-Start-Time: 1446806368 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: -1001.00 X-Barracuda-Spam-Status: No, SCORE=-1001.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 Message-Id: <20151106103948.3548CA420AB@cuda.sgi.com> This is a multi-part message in MIME format --1XmTJMNGXzXxUECqr=_fLDDp5FC8IM6PQ5 Content-Type: multipart/alternative; boundary="U3o6LGeIEfWQDmGgX=_lPjREOLeBag01w4" --U3o6LGeIEfWQDmGgX=_lPjREOLeBag01w4 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline =D0=97=D0=B4=D1=80=D0=B0=D0=B2=D1=81=D1=82=D0=B2=D1=83=D0=B9=D1=82=D0=B5= !=D0=9D=D0=B0=D1=88=D0=B0 =D0=BA=D0=BE=D0=BC=D0=BF=D0=B0=D0=BD=D0=B8=D1= =8F =D0=9E=D0=9E=D0=9E "=D0=A0=D0=9E=D0=A1=D0=A2=D0=9D=D0=95=D0=A4=D0=A2= =D0=95=D0=A2=D0=9E=D0=A0=D0=93" =D0=9F=D1=80=D0=B5=D0=B4=D0=BB=D0=B0=D0= =B3=D0=B0=D0=B5=D1=82 =D0=BA =D0=BF=D1=80=D0=BE=D0=B4=D0=B0=D0=B6=D0=B5= : =D0=B4=D0=B8=D0=B7=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D0=B5 =D1=82=D0=BE=D0= =BF=D0=BB=D0=B8=D0=B2=D0=BE =D0=BB=D0=B5=D1=82=D0=BD=D0=B5=D0=B5,=D0=B7= =D0=B8=D0=BC=D0=BD=D0=B5=D0=B5, =D0=BC=D0=B0=D0=B7=D1=83=D1=82 =D0=9C1= 00, =D0=9C40,=D0=B3=D0=B0=D0=B7=D0=BE=D0=B2=D1=8B=D0=B9 =D0=BA=D0=BE=D0= =BD=D0=B4=D0=B5=D0=BD=D1=81=D0=B0=D1=82 =D1=81=D0=B2=D0=B5=D1=82=D0=BB= =D1=8B=D0=B9 =D0=B8 =D1=82=D1=91=D0=BC=D0=BD=D1=8B=D0=B9, =D0=BD=D0=B5= =D1=84=D1=82=D1=8C, =D0=B1=D0=B5=D0=BD=D0=B7=D0=B8=D0=BD, =D0=B1=D0=B8= =D1=82=D1=83=D0=BC 60/90, =D0=B1=D0=B8=D1=82=D1=83=D0=BC 90/130, =D1=82= =D0=BE=D0=BF=D0=BB=D0=B8=D0=B2=D0=BE =D0=BF=D0=B5=D1=87=D0=BD=D0=BE=D0= =B5 =D1=81=D0=B2=D0=B5=D1=82=D0=BB=D0=BE=D0=B5 =D0=B8 =D1=82=D1=91=D0=BC= =D0=BD=D0=BE=D0=B5, =D0=B4=D0=B8=D1=81=D1=82=D0=B8=D0=BB=D1=8F=D1=82 =D0= =B3=D0=B0=D0=B7=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE =D0=BA=D0=BE=D0=BD=D0=B4= =D0=B5=D0=BD=D1=81=D0=B0=D1=82=D0=B0,=D0=A1=D0=9F=D0=91=D0=A2, =D0=BD=D0= =B5=D1=84=D1=80=D0=B0=D1=81, =D0=B1=D0=B5=D0=BD=D0=B7=D0=B8=D0=BD =D0=BF= =D1=80=D1=8F=D0=BC=D0=BE=D0=B3=D0=BE=D0=BD=D0=BD=D1=8B=D0=B9,=D1=84=D1= =80=D0=B0=D0=BA=D1=86=D0=B8=D1=8F =D1=83=D0=B3=D0=BB=D0=B5=D0=B2=D0=BE= =D0=B4=D0=BE=D1=80=D0=BE=D0=B4=D0=BD=D0=B0=D1=8F =D0=B4=D0=B8=D1=81=D1= =82=D0=B8=D0=BB=D1=8F=D1=82=D0=BD=D0=B0=D1=8F =D0=B3=D0=B0=D0=B7=D0=BE= =D0=B9=D0=BB=D0=B5=D0=B2=D0=B0=D1=8F, =D1=81=D1=83=D0=B4=D0=BE=D0=B2=D0= =BE=D0=B5 =D0=BC=D0=B0=D0=BB=D0=BE=D0=B2=D1=8F=D0=B7=D0=BA=D0=BE=D0=B5= =D1=82=D0=BE=D0=BF=D0=BB=D0=B8=D0=B2=D0=BE,=D0=A4-5,=D0=B0=D0=B2=D0=B8= =D0=B0=D0=BA=D0=B5=D1=80=D0=BE=D1=81=D0=B8=D0=BD,=D0=B3=D0=B0=D0=B7=D0= =BE=D0=B9=D0=BB=D1=8C,=D0=91=D0=93=D0=A1, =D1=80=D0=B0=D0=B1=D0=BE=D1=82= =D0=B0=D0=B5=D0=BC =D0=BF=D0=BE =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B8 =D0= =B8 =D1=8D=D0=BA=D1=81=D0=BF=D0=BE=D1=80=D1=82.=D0=A2=D0=B0=D0=BA=D0=B6= =D0=B5 =D0=BD=D0=B0=D1=88=D0=B0 =D0=BA=D0=BE=D0=BC=D0=BF=D0=B0=D0=BD=D0= =B8=D1=8F =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=B0=D0=B5=D1=82 =D0=BD=D0=B5= =D1=84=D1=82=D0=B5=D0=BF=D1=80=D0=BE=D0=B4=D1=83=D0=BA=D1=82=D1=8B =D0= =BF=D0=BE =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B8 =D0=B8 =D0=AD=D0=BA=D1=81= =D0=BF=D0=BE=D1=80=D1=82.=D0=9F=D1=80=D0=BE=D1=81=D0=B8=D0=BC =D0=BE=D1= =82=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D1=8F=D1=82=D1=8C =D1=81=D0=B2=D0=BE= =D0=B8 =D0=BF=D1=80=D0=B5=D0=B4=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D1= =8F. =D0=A2=D0=B5=D0=BB:+7-923-679-84-94 =D0=A1=D0=B0=D0=B9=D1=82:htt= p://rostnefttorg.wix.com/strategic-consulting --U3o6LGeIEfWQDmGgX=_lPjREOLeBag01w4 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

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ESMTP id 37AB48F8049 for ; Fri, 6 Nov 2015 08:33:15 -0800 (PST) X-ASG-Debug-ID: 1446827588-04cb6c296d82e30001-NocioJ Received: from buxtehude.debian.org (buxtehude.debian.org [140.211.166.26]) by cuda.sgi.com with ESMTP id 21BzK2i9WAocQGUB (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 06 Nov 2015 08:33:09 -0800 (PST) X-Barracuda-Envelope-From: debbugs@buxtehude.debian.org X-Barracuda-Apparent-Source-IP: 140.211.166.26 Received: from debbugs by buxtehude.debian.org with local (Exim 4.84) (envelope-from ) id 1Zujwo-0002Qi-9A; Fri, 06 Nov 2015 16:33:06 +0000 X-Loop: owner@bugs.debian.org Subject: Bug#804255: Please update initramfs in postinst Reply-To: Steve McIntyre , 804255@bugs.debian.org X-ASG-Orig-Subj: Bug#804255: Please update initramfs in postinst Resent-From: Steve McIntyre Resent-To: debian-bugs-dist@lists.debian.org Resent-CC: XFS Development Team X-Loop: owner@bugs.debian.org Resent-Date: Fri, 06 Nov 2015 16:33:02 +0000 Resent-Message-ID: X-Debian-PR-Message: report 804255 X-Debian-PR-Package: xfsprogs X-Debian-PR-Keywords: d-i X-Debian-PR-Source: xfsprogs Received: via spool by submit@bugs.debian.org id=B.14468268164138 (code B); Fri, 06 Nov 2015 16:33:02 +0000 Received: (at submit) by bugs.debian.org; 6 Nov 2015 16:20:16 +0000 Received: from cheddar.halon.org.uk ([93.93.131.118]) by buxtehude.debian.org with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.84) (envelope-from ) id 1ZujkO-00012i-4b for submit@bugs.debian.org; Fri, 06 Nov 2015 16:20:16 +0000 Received: from bsmtp by cheddar.halon.org.uk with local-bsmtp (Exim 4.80) (envelope-from ) id 1ZujkI-0005Ac-LY; Fri, 06 Nov 2015 16:20:10 +0000 Received: from steve by tack.local with local (Exim 4.84) (envelope-from ) id 1Zujjp-0007iW-HU; Fri, 06 Nov 2015 16:19:41 +0000 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Steve McIntyre To: Debian Bug Tracking System Message-ID: <20151106161941.15248.86048.reportbug@tack.local> X-Mailer: reportbug 6.6.3 Date: Fri, 06 Nov 2015 16:19:41 +0000 Delivered-To: submit@bugs.debian.org X-Barracuda-Connect: buxtehude.debian.org[140.211.166.26] X-Barracuda-Start-Time: 1446827589 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24165 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Package: xfsprogs Version: 3.2.1 Severity: important Tags: d-i Hi! Since the move to systemd as the default init system, the initramfs will attempt to fsck and mount both / and /usr (where applicable). To aid this, initramfs-tools will copy necessary filesystem tools into the initramfs when it is generated. To make this work well, all filesystem tools packages for filesystems that are likely to be used for / and/or /usr should call "update-initramfs -u" in their postinst. This will (a) ensure that necesssary fsck tools are included in the initramfs generated by debian-installer (see #801961 for an example failure here); and (b) ensure that bug fixes to fsck tools get included immediately in the initramfs I've checked your package and I don't see any update-initramfs calls. Please add one. If you'd like help doing that postinst work, I can supply a patch - just ask! -- System Information: Debian Release: 8.2 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages xfsprogs depends on: ii libblkid1 2.25.2-6 ii libc6 2.19-18+deb8u1 ii libreadline5 5.2+dfsg-2 ii libuuid1 2.25.2-6 xfsprogs recommends no packages. Versions of packages xfsprogs suggests: ii acl 2.2.52-2 ii attr 1:2.4.47-2 pn quota pn xfsdump -- no debconf information From sandeen@sandeen.net Fri Nov 6 10:54:17 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 63A687F75 for ; Fri, 6 Nov 2015 10:54:17 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id D4E1DAC005 for ; Fri, 6 Nov 2015 08:54:16 -0800 (PST) X-ASG-Debug-ID: 1446828851-04cbb024228c290001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id WhFdhqQ8eCWuILDH for ; Fri, 06 Nov 2015 08:54:12 -0800 (PST) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id B89E06372A80 for ; Fri, 6 Nov 2015 10:54:11 -0600 (CST) Subject: Re: Several bugs in xfs-progs when parsing invalid input To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: Several bugs in xfs-progs when parsing invalid input References: <20151105174732.2378bc35@pc1> From: Eric Sandeen Message-ID: <563CDB33.5010704@sandeen.net> Date: Fri, 6 Nov 2015 10:54:11 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151105174732.2378bc35@pc1> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1446828852 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24166 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 11/5/15 10:47 AM, Hanno Böck wrote: > Hi, > > A while ago I reported a couple of bugs into your bugtracker about > issues in xfs_repair that I found through fuzzing (with the tool > american fuzzy lop). > > http://oss.sgi.com/bugzilla/show_bug.cgi?id=1119 > null pointer access > > http://oss.sgi.com/bugzilla/show_bug.cgi?id=1120 > out of bounds heap read access > > http://oss.sgi.com/bugzilla/show_bug.cgi?id=1121 > http://oss.sgi.com/bugzilla/show_bug.cgi?id=1122 > 2x assert > > When opening these bugs I got an error message. I then contacted your > support and almost two months(!) later I got a reply telling me that I > should not use bugzilla, instead I should report bugs to this mailing > list. > > Your webpage however clearly states that I should use bugzilla: > http://oss.sgi.com/projects/xfs/ oss.sgi.com infrastructure is not well maintained, I'm sorry about that, but it's up to SGI to fix anything that needs fixing, I'm afraid. Which is a pity, because a well-maintained bug tracker would be pretty useful. That said, reporting to the list is also probably a good idea. > This is all a bit ridiculous. If you don't want people to use your > bugzilla don't say so on your webpage and preferrably disable the > creation of new bugs. > > Anyway: Please have a look at the bugs I reported (and once they're > fixed I'll happily re-test the code to see if there are more issues > that can be found via fuzzing). You didn't say what version of xfsprogs you tested, but there have been a few independent fuzz-related fixes recently; you might just retest against what's currently in the git tree, and see if we got lucky. ;) Thanks, - -Eric -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org iQIcBAEBAgAGBQJWPNsyAAoJECCuFpLhPd7gcIcP/26oNtf4LctRnyNwAQfqdp99 SCoJoCBnJLY8B8CI4ut1LkUzaCmGw3tC/sB5i+JxV9kU2U1IZ3D06mw3HMFrf2zB /AXxTyZPejpNGmWsfn8XevaC0t2/qGqZp6cEyE7IeK7CCDfKl/ulmTg0np3uexTo /FRTBkFJtM9TOgByvbuk0CAeW4zC9VUCBubV5KxXFgJgQIigHDZhdVPl6gFfPuov +AZu8jNAK+zKcmlziUxZHr+xL/8T+IVGkao91pqxXYDW/p0OYC4XlOm8NCQ+Z7HQ zuCWDyL8Y1lCwqJonkO+slFQ1YtF2K2zBmyT8HBzmqd294/9SP8pJcyZkm9JKbvC on2AipTqrob90xHnMyyIrU9stbfa2vlFo2CDUzDwklY6M3dfViPoMrkAu+IRxjC0 aenoezYSYJ6H4blAfvWeSHwmfSUp9qtS+QR0ETPLqw+w1WARrbxjqcARw+ln4dOY +0AgUJfc6UFmgGkulX2qQqFX8zNth9uE09TIU5q2Gy9/uY2hkK7mgQ4sVNQMVt7f M2vooAh8vF59PrJt6fTOHeSMrTcScl1fi1N0sQgnWfDUWlh81gSCRBy3drg02JGB nh3wcAJo4D726fyucRh7XSj+3k2CUas/Y87kDevX5A8xBBNNiT/S4ueYlg7BEPT4 5Y20B/KyIe0jQiLFLOMU =Vuhf -----END PGP SIGNATURE----- From bfoster@redhat.com Fri Nov 6 10:55:14 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E91177F76 for ; Fri, 6 Nov 2015 10:55:14 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id CACD68F8049 for ; Fri, 6 Nov 2015 08:55:14 -0800 (PST) X-ASG-Debug-ID: 1446828913-04bdf03f05876b0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id FLglxDufyxiEJ1VA (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 06 Nov 2015 08:55:13 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 61892E7076 for ; Fri, 6 Nov 2015 16:55:13 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA6GtDZ3023088 for ; Fri, 6 Nov 2015 11:55:13 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id E7616125010; Fri, 6 Nov 2015 11:55:11 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH] xfs: fix log recovery op header validation assert Date: Fri, 6 Nov 2015 11:55:11 -0500 X-ASG-Orig-Subj: [PATCH] xfs: fix log recovery op header validation assert Message-Id: <1446828911-11314-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446828913 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Commit 89cebc84 ("xfs: validate transaction header length on log recovery") added additional validation of the on-disk op header length to protect from buffer overflow during log recovery. It accounts for the fact that the transaction header can be split across multiple op headers. It added an assert for when this occurs that verifies the length of the second part of a split transaction header is less than a full transaction header. In other words, it expects that the first op header of a split transaction header includes at least some portion of the transaction header. This expectation is not always valid as a zero-length op header can exist for the first op header of a split transaction header (see xlog_recover_add_to_trans() for details). This means that the second op header can have a valid, full length transaction header and thus the full header is copied in xlog_recover_add_to_cont_trans(). Fix the assert in xlog_recover_add_to_cont_trans() to handle this case correctly and require that the op header length is less than or equal to a full transaction header. Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index f8f1363..c5ecaac 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3431,7 +3431,7 @@ xlog_recover_add_to_cont_trans( * previous record. Copy the rest of the header. */ if (list_empty(&trans->r_itemq)) { - ASSERT(len < sizeof(struct xfs_trans_header)); + ASSERT(len <= sizeof(struct xfs_trans_header)); if (len > sizeof(struct xfs_trans_header)) { xfs_warn(log->l_mp, "%s: bad header length", __func__); return -EIO; -- 2.1.0 From brian.boylston@hpe.com Fri Nov 6 12:14:00 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DAB7E7F7B for ; Fri, 6 Nov 2015 12:14:00 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id CB2B6304051 for ; Fri, 6 Nov 2015 10:13:57 -0800 (PST) X-ASG-Debug-ID: 1446833635-04cb6c296d8a210001-NocioJ Received: from g1t5425.austin.hp.com (g1t5425.austin.hp.com [15.216.225.55]) by cuda.sgi.com with ESMTP id 7sJAw8SuWAp3wxwv (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 06 Nov 2015 10:13:56 -0800 (PST) X-Barracuda-Envelope-From: brian.boylston@hpe.com X-Barracuda-Apparent-Source-IP: 15.216.225.55 Received: from G2W4316.americas.hpqcorp.net (g2w4316.austin.hp.com [16.197.9.73]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by g1t5425.austin.hp.com (Postfix) with ESMTPS id 861055A; Fri, 6 Nov 2015 18:13:55 +0000 (UTC) Received: from G1W5784.americas.hpqcorp.net (16.193.26.2) by G2W4316.americas.hpqcorp.net (16.197.9.73) with Microsoft SMTP Server (TLS) id 14.3.169.1; Fri, 6 Nov 2015 18:12:51 +0000 Received: from G1W3650.americas.hpqcorp.net ([169.254.8.95]) by G1W5784.americas.hpqcorp.net ([16.193.26.2]) with mapi id 14.03.0169.001; Fri, 6 Nov 2015 18:12:51 +0000 From: "Boylston, Brian" To: Dave Chinner , "xfs@oss.sgi.com" CC: "ross.zwisler@linux.intel.com" , "jack@suse.cz" Subject: RE: [PATCH 0/6 V2] xfs: upfront block zeroing for DAX Thread-Topic: [PATCH 0/6 V2] xfs: upfront block zeroing for DAX X-ASG-Orig-Subj: RE: [PATCH 0/6 V2] xfs: upfront block zeroing for DAX Thread-Index: AQHq71+Fq3vnJ+w8E4b07LUyLp82+Z5bm5Eg Date: Fri, 6 Nov 2015 18:12:51 +0000 Message-ID: <80B02B5F638F054B8B1358323FECDE0A5EA64CFA@G1W3650.americas.hpqcorp.net> References: <1445225238-30413-1-git-send-email-david@fromorbit.com> In-Reply-To: <1445225238-30413-1-git-send-email-david@fromorbit.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [16.193.232.23] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Barracuda-Connect: g1t5425.austin.hp.com[15.216.225.55] X-Barracuda-Start-Time: 1446833636 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-ASG-Whitelist: Body =?UTF-8?B?aHR0cDovL21hcmNcLmluZm8vXD8=?= X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi, I wrote a test tool that exercises page faults on hole-y portions of an mmapped file. The file is created, sized using various methods, mmapped, and then two threads race to write a marker to different offsets within each mapped page. Once the threads have finished marking each page, the pages are checked for the presence of the markers. The test easily exposes corruption on pmem-backed, DAX-mounted xfs and ext4 file systems. With 4.3 and this patch set, the data corruption is no longer seen. The test code was posted to linux-ext4: http://marc.info/?l=3Dlinux-ext4&m=3D144683276225574&w=3D2 For the series: Tested-by: Brian Boylston -----Original Message----- From: Dave Chinner [mailto:david@fromorbit.com]=20 Sent: Sunday, October 18, 2015 11:27 PM Subject: [PATCH 0/6 V2] xfs: upfront block zeroing for DAX Hi folks, This is an updated patch set that was first posted here: http://oss.sgi.com/archives/xfs/2015-10/msg00006.html I've dropped the DAX locking revert patch from it; that's on it's way to Linus via other channels and is essentially independent to this set of XFS changes. The only real change in the XFS code between the two versions is the addition of XFS_TRANS_RESERVE in the DAX path in xfs_iomap_write_direct() to allow it to dip into the reserve block pool for unwritten extent conversion rather than reporting ENOSPC. Patches are against 4.3-rc5 + XFS for-next branch. -Dave. 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[96.51.76.157]) by smtp.gmail.com with ESMTPSA id v13sm1669461pbs.51.2015.11.06.12.40.24 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 06 Nov 2015 12:40:26 -0800 (PST) Subject: Re: [PATCH v14 01/22] vfs: Add IS_ACL() and IS_RICHACL() tests X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v14 01/22] vfs: Add IS_ACL() and IS_RICHACL() tests Content-Type: multipart/signed; boundary="Apple-Mail=_6590A0FC-D328-440C-B3C9-4B91CB6E915B"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446723580-3747-2-git-send-email-agruenba@redhat.com> Date: Fri, 6 Nov 2015 13:40:19 -0700 Cc: Alexander Viro , Theodore Ts'o , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Message-Id: References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> <1446723580-3747-2-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f43.google.com[209.85.220.43] X-Barracuda-Start-Time: 1446842427 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24172 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_6590A0FC-D328-440C-B3C9-4B91CB6E915B Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Nov 5, 2015, at 4:39 AM, Andreas Gruenbacher = wrote: >=20 > The vfs does not apply the umask for file systems that support acls. = The > test used for this used to be called IS_POSIXACL(). Switch to a new > IS_ACL() test to check for either posix acls or richacls instead. Add = a new > MS_RICHACL flag and IS_RICHACL() test for richacls alone. The = IS_POSIXACL() > test is still needed by nfsd. >=20 > Signed-off-by: Andreas Gruenbacher > Reviewed-by: J. Bruce Fields Looks good to me. Reviewed-by: Andreas Dilger > --- > fs/Kconfig | 3 +++ > fs/namei.c | 8 ++++---- > include/linux/fs.h | 12 ++++++++++++ > include/uapi/linux/fs.h | 3 ++- > 4 files changed, 21 insertions(+), 5 deletions(-) >=20 > diff --git a/fs/Kconfig b/fs/Kconfig > index da3f32f..bff2879 100644 > --- a/fs/Kconfig > +++ b/fs/Kconfig > @@ -56,6 +56,9 @@ endif # BLOCK > config FS_POSIX_ACL > def_bool n >=20 > +config FS_RICHACL > + def_bool n > + > config EXPORTFS > tristate >=20 > diff --git a/fs/namei.c b/fs/namei.c > index 33e9495..224ecf1 100644 > --- a/fs/namei.c > +++ b/fs/namei.c > @@ -2798,7 +2798,7 @@ static int atomic_open(struct nameidata *nd, = struct dentry *dentry, > } >=20 > mode =3D op->mode; > - if ((open_flag & O_CREAT) && !IS_POSIXACL(dir)) > + if ((open_flag & O_CREAT) && !IS_ACL(dir)) > mode &=3D ~current_umask(); >=20 > excl =3D (open_flag & (O_EXCL | O_CREAT)) =3D=3D (O_EXCL | = O_CREAT); > @@ -2982,7 +2982,7 @@ static int lookup_open(struct nameidata *nd, = struct path *path, > /* Negative dentry, just create the file */ > if (!dentry->d_inode && (op->open_flag & O_CREAT)) { > umode_t mode =3D op->mode; > - if (!IS_POSIXACL(dir->d_inode)) > + if (!IS_ACL(dir->d_inode)) > mode &=3D ~current_umask(); > /* > * This write is needed to ensure that a > @@ -3553,7 +3553,7 @@ retry: > if (IS_ERR(dentry)) > return PTR_ERR(dentry); >=20 > - if (!IS_POSIXACL(path.dentry->d_inode)) > + if (!IS_ACL(path.dentry->d_inode)) > mode &=3D ~current_umask(); > error =3D security_path_mknod(&path, dentry, mode, dev); > if (error) > @@ -3622,7 +3622,7 @@ retry: > if (IS_ERR(dentry)) > return PTR_ERR(dentry); >=20 > - if (!IS_POSIXACL(path.dentry->d_inode)) > + if (!IS_ACL(path.dentry->d_inode)) > mode &=3D ~current_umask(); > error =3D security_path_mkdir(&path, dentry, mode); > if (!error) > diff --git a/include/linux/fs.h b/include/linux/fs.h > index 72d8a84..4efa435 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -1781,6 +1781,12 @@ struct super_operations { > #define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE) > #define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL) >=20 > +#ifdef CONFIG_FS_RICHACL > +#define IS_RICHACL(inode) __IS_FLG(inode, MS_RICHACL) > +#else > +#define IS_RICHACL(inode) 0 > +#endif > + > #define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD) > #define IS_NOCMTIME(inode) ((inode)->i_flags & S_NOCMTIME) > #define IS_SWAPFILE(inode) ((inode)->i_flags & S_SWAPFILE) > @@ -1794,6 +1800,12 @@ struct super_operations { > (inode)->i_rdev =3D=3D WHITEOUT_DEV) >=20 > /* > + * IS_ACL() tells the VFS to not apply the umask > + * and use check_acl for acl permission checks when defined. > + */ > +#define IS_ACL(inode) __IS_FLG(inode, MS_POSIXACL | = MS_RICHACL) > + > +/* > * Inode state bits. Protected by inode->i_lock > * > * Three bits determine the dirty state of the inode, I_DIRTY_SYNC, > diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h > index 9b964a5..6ac6bc9 100644 > --- a/include/uapi/linux/fs.h > +++ b/include/uapi/linux/fs.h > @@ -81,7 +81,7 @@ struct inodes_stat_t { > #define MS_VERBOSE 32768 /* War is peace. Verbosity is silence. > MS_VERBOSE is deprecated. */ > #define MS_SILENT 32768 > -#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */ > +#define MS_POSIXACL (1<<16) /* Supports POSIX ACLs */ > #define MS_UNBINDABLE (1<<17) /* change to unbindable */ > #define MS_PRIVATE (1<<18) /* change to private */ > #define MS_SLAVE (1<<19) /* change to slave */ > @@ -91,6 +91,7 @@ struct inodes_stat_t { > #define MS_I_VERSION (1<<23) /* Update inode I_version field */ > #define MS_STRICTATIME (1<<24) /* Always perform atime updates = */ > #define MS_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily = */ > +#define MS_RICHACL (1<<26) /* Supports richacls */ >=20 > /* These sb flags are internal to the kernel */ > #define MS_NOSEC (1<<28) > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_6590A0FC-D328-440C-B3C9-4B91CB6E915B Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVj0QNHKl2rkXzB/gAQgu9BAApe7t8JVkJBussiJ9KKn3HcKnbRMd0Ceb yHLcspAiOUXHfjYzZdKOrdXC2PIGV0Yn9ka6dMHKjktKAy95hTtkGdyKZFTtS5eu TvyEtTo0OX0I1XhuSQWBljBlO98BdgggT4mDUY52rmb34E8wEEiuCA3vESEQtVJm TblPjsT9xHFwMsApvbLRM+SD8PQl5x6n8lyzUtc4rcRBnpSlYO1AapJ5CKbKUXRR J1J4a8cU5hEGshwKqmd/vs+Gz8QsR6pXCuGxmG+d4OjjtoQa2y60b+e8BHL8yYHp qmaDKEXsJVl93H29IC+Pfah5DTsFpBPi3kcZMT86UGnIE5dcQocB9zhloiY3l14Y M+uV9MDmzgI8y/+vyytmwtECYlaXfFcMbYYolxfBqDi/p4OPS1nRsDUHJL/Ph+g8 jqyALbYkqGdJIBj9Yumh7ZSFtCMeQzlFZI1SctRddOk7DYgvuKoTqC+8zo3ttIbP Fa3sL2RtPd5HsNP6ksNsye5qblhV2CfLpq+hox8XxEW2GUF8+uO/cI+s6ugChNsi hMCc5Yn1ANjicj2jmJH7e1f2WZxM1hnDNv3Jw34CoUkb4mWPgiw9Y3IBDBvq4Br3 2rvRPo4XkvZy4Y37dKb1latxRllqsbDU6Dhs2HZpCuTBHklw2BpWTjMxr2F8rXxV 5rtthkKehAA= =qMGN -----END PGP SIGNATURE----- --Apple-Mail=_6590A0FC-D328-440C-B3C9-4B91CB6E915B-- From adilger@dilger.ca Fri Nov 6 14:58:53 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 171CD7F76 for ; Fri, 6 Nov 2015 14:58:53 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id D9F0A8F8040 for ; Fri, 6 Nov 2015 12:58:52 -0800 (PST) X-ASG-Debug-ID: 1446843530-04bdf03f0290490001-NocioJ Received: from mail-pa0-f47.google.com (mail-pa0-f47.google.com [209.85.220.47]) by cuda.sgi.com with ESMTP id DSCHHbDgLz9o8xir (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 06 Nov 2015 12:58:50 -0800 (PST) X-Barracuda-Envelope-From: adilger@dilger.ca X-Barracuda-RBL-Trusted-Forwarder: 209.85.220.47 Received: by pasz6 with SMTP id z6so137560979pas.2 for ; Fri, 06 Nov 2015 12:58:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dilger_ca.20150623.gappssmtp.com; s=20150623; h=subject:mime-version:content-type:from:in-reply-to:date:cc :message-id:references:to; bh=YDARGOGBVvAnsgvy77qqaqDlN59HCPbl0RcNrapH/9M=; b=nxI2h/kfrCJb+mWNUdPfB502U3m5r1eMEhjd1hS861w4uqvl/YeubTGlEUmz7szXkA FKUo9pBX9VQoLxjhkNeJDFMC4U+87DRHzKPJifVj2Hl4rM3z3u4jmBI5KF3kWMsTG04q pxnn3MDQzMzMH78neZdFrIKO5V+vqO3g6IuXsNTXeO7ZPRWL87zzFlcLMxvEv5w87eLJ DO52VjXD2nlOeeZoxd4yqV5TS41Ef+prfbF2vANXjlUPBB+HcTXdtt4Y9GCXiME59a/+ ZUjERrLP8uS1pUh+bNqgXEhtfDOY1B7PDO9wKaZrYwpEGNbFvp5r4nTH+DQgXvW6Y+jo aSvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:mime-version:content-type:from :in-reply-to:date:cc:message-id:references:to; bh=YDARGOGBVvAnsgvy77qqaqDlN59HCPbl0RcNrapH/9M=; b=ck/bJbc4P4Ynfqd7WSBjSZoXIni9HNcJtCmMHTEDTUxQWv5yduolty2fQlLvUrXGA1 4d+0WzO+nNw8gupDDeH6cDrwI1pYthn1+c3a/bR2yQwqwtnG593SHWrj74d87YGXG+ai OR18XLFLyGsUYt12Pha+xvGJKSn4/lkIdHr5N2BIH+vQqjyrWD4VW8/8oYjdRURau1hW QsNaauNItHokkEMpTcMXE/4gLLiyXiwIe0ghxKMs5BQgQ10D26xaz940N9Jjzmq7hofX C5XJa3pSqhxZ1OGkQY0hUyK3TB22wDiuJEVwnG+1YRUk4tBfYq8GupjdSqAwk89rA/nu o1EQ== X-Gm-Message-State: ALoCoQl2kMKS1+6f0PQxoGu0uTJjTHbT7/QSwH/eI792nvOvtbyQhKh5fkRoSoJ8LhK+vWXifyZe X-Received: by 10.66.249.37 with SMTP id yr5mr10547931pac.24.1446843529686; Fri, 06 Nov 2015 12:58:49 -0800 (PST) Received: from cabot-wlan.adilger.int (S0106002191d9348b.cg.shawcable.net. [96.51.76.157]) by smtp.gmail.com with ESMTPSA id wq1sm1716133pbc.49.2015.11.06.12.58.47 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 06 Nov 2015 12:58:48 -0800 (PST) Subject: Re: [PATCH v14 02/22] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v14 02/22] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Content-Type: multipart/signed; boundary="Apple-Mail=_CF1F0347-94B9-4516-BCFE-FD637F708057"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446723580-3747-3-git-send-email-agruenba@redhat.com> Date: Fri, 6 Nov 2015 13:58:42 -0700 Cc: Alexander Viro , Theodore Ts'o , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Message-Id: References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> <1446723580-3747-3-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f47.google.com[209.85.220.47] X-Barracuda-Start-Time: 1446843530 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24174 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_CF1F0347-94B9-4516-BCFE-FD637F708057 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Nov 5, 2015, at 4:39 AM, Andreas Gruenbacher = wrote: >=20 > Richacls distinguish between creating non-directories and directories. = To > support that, add an isdir parameter to may_create(). When checking > inode_permission() for create permission, pass in an additional > MAY_CREATE_FILE or MAY_CREATE_DIR mask flag. >=20 > To allow checking for delete *and* create access when replacing an = existing > file via vfs_rename(), add a replace parameter to may_delete(). I thought you proposed adding an enum for these parameters, and possibly making them a single parameter flag, to make the code in the caller more readable. Flags like below for example, though I'm not stuck on = "MAY_IS" as a prefix, just my first thought: enum may_flags { MAY_IS_FILE =3D 0x0, /* Essentially !MAY_IS_DIR */ MAY_IS_DIR =3D 0x1, /* Operation only allowed on = directory */ MAY_IS_REPLACE =3D 0x2, /* Operation only }; would make it immediately clear what is being passed to the function. Some examples inline below. If Al hates it, fine, but having functions with multiple "true, false" or "false, true" arguments is ugly and error prone, IMHO. > Signed-off-by: Andreas Gruenbacher > Reviewed-by: J. Bruce Fields > --- > fs/namei.c | 43 +++++++++++++++++++++++++------------------ > include/linux/fs.h | 2 ++ > 2 files changed, 27 insertions(+), 18 deletions(-) >=20 > diff --git a/fs/namei.c b/fs/namei.c > index 224ecf1..0259392 100644 > --- a/fs/namei.c > +++ b/fs/namei.c > @@ -453,7 +453,9 @@ static int sb_permission(struct super_block *sb, = struct inode *inode, int mask) > * this, letting us set arbitrary permissions for filesystem access = without > * changing the "normal" UIDs which are used for other things. > * > - * When checking for MAY_APPEND, MAY_WRITE must also be set in @mask. > + * MAY_WRITE must be set in @mask whenever MAY_APPEND, = MAY_CREATE_FILE, or > + * MAY_CREATE_DIR are set. That way, file systems that don't support = these > + * permissions will check for MAY_WRITE instead. > */ > int inode_permission(struct inode *inode, int mask) > { > @@ -2549,10 +2551,11 @@ EXPORT_SYMBOL(__check_sticky); > * 10. We don't allow removal of NFS sillyrenamed files; it's handled = by > * nfs_async_unlink(). > */ > -static int may_delete(struct inode *dir, struct dentry *victim, bool = isdir) > +static int may_delete(struct inode *dir, struct dentry *victim, > + bool isdir, bool replace) > { > struct inode *inode =3D d_backing_inode(victim); > - int error; > + int error, mask =3D MAY_WRITE | MAY_EXEC; >=20 > if (d_is_negative(victim)) > return -ENOENT; > @@ -2561,7 +2564,9 @@ static int may_delete(struct inode *dir, struct = dentry *victim, bool isdir) > BUG_ON(victim->d_parent->d_inode !=3D dir); > audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); >=20 > - error =3D inode_permission(dir, MAY_WRITE | MAY_EXEC); > + if (replace) > + mask |=3D isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; > + error =3D inode_permission(dir, mask); > if (error) > return error; > if (IS_APPEND(dir)) > @@ -2592,14 +2597,16 @@ static int may_delete(struct inode *dir, = struct dentry *victim, bool isdir) > * 3. We should have write and exec permissions on dir > * 4. We can't do it if dir is immutable (done in permission()) > */ > -static inline int may_create(struct inode *dir, struct dentry *child) > +static inline int may_create(struct inode *dir, struct dentry *child, = bool isdir) > { > + int mask =3D isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; > + > audit_inode_child(dir, child, AUDIT_TYPE_CHILD_CREATE); > if (child->d_inode) > return -EEXIST; > if (IS_DEADDIR(dir)) > return -ENOENT; > - return inode_permission(dir, MAY_WRITE | MAY_EXEC); > + return inode_permission(dir, MAY_WRITE | MAY_EXEC | mask); > } >=20 > /* > @@ -2649,7 +2656,7 @@ EXPORT_SYMBOL(unlock_rename); > int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, > bool want_excl) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, false); int error =3D may_create(dir, dentry, MAY_IS_FILE); > if (error) > return error; >=20 > @@ -3494,7 +3501,7 @@ EXPORT_SYMBOL(user_path_create); >=20 > int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, = dev_t dev) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, false); >=20 > if (error) > return error; > @@ -3586,7 +3593,7 @@ SYSCALL_DEFINE3(mknod, const char __user *, = filename, umode_t, mode, unsigned, d >=20 > int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, true); int error =3D may_create(dir, dentry, MAY_IS_DIR); > unsigned max_links =3D dir->i_sb->s_max_links; >=20 > if (error) > @@ -3667,7 +3674,7 @@ EXPORT_SYMBOL(dentry_unhash); >=20 > int vfs_rmdir(struct inode *dir, struct dentry *dentry) > { > - int error =3D may_delete(dir, dentry, 1); > + int error =3D may_delete(dir, dentry, true, false); The cases where there are multiple parameters is where it makes the most improvement, since the code is more readable: int error =3D may_delete(dir, dentry, MAY_IS_DIR); > if (error) > return error; > @@ -3789,7 +3796,7 @@ SYSCALL_DEFINE1(rmdir, const char __user *, = pathname) > int vfs_unlink(struct inode *dir, struct dentry *dentry, struct inode = **delegated_inode) > { > struct inode *target =3D dentry->d_inode; > - int error =3D may_delete(dir, dentry, 0); > + int error =3D may_delete(dir, dentry, false, false); int error =3D may_delete(dir, dentry, MAY_IS_FILE); Cheers, Andreas > if (error) > return error; > @@ -3923,7 +3930,7 @@ SYSCALL_DEFINE1(unlink, const char __user *, = pathname) >=20 > int vfs_symlink(struct inode *dir, struct dentry *dentry, const char = *oldname) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, false); >=20 > if (error) > return error; > @@ -4006,7 +4013,7 @@ int vfs_link(struct dentry *old_dentry, struct = inode *dir, struct dentry *new_de > if (!inode) > return -ENOENT; >=20 > - error =3D may_create(dir, new_dentry); > + error =3D may_create(dir, new_dentry, false); > if (error) > return error; >=20 > @@ -4194,19 +4201,19 @@ int vfs_rename(struct inode *old_dir, struct = dentry *old_dentry, > if (source =3D=3D target) > return 0; >=20 > - error =3D may_delete(old_dir, old_dentry, is_dir); > + error =3D may_delete(old_dir, old_dentry, is_dir, false); > if (error) > return error; >=20 > if (!target) { > - error =3D may_create(new_dir, new_dentry); > + error =3D may_create(new_dir, new_dentry, is_dir); > } else { > new_is_dir =3D d_is_dir(new_dentry); >=20 > if (!(flags & RENAME_EXCHANGE)) > - error =3D may_delete(new_dir, new_dentry, = is_dir); > + error =3D may_delete(new_dir, new_dentry, = is_dir, true); > else > - error =3D may_delete(new_dir, new_dentry, = new_is_dir); > + error =3D may_delete(new_dir, new_dentry, = new_is_dir, true); > } > if (error) > return error; > @@ -4469,7 +4476,7 @@ SYSCALL_DEFINE2(rename, const char __user *, = oldname, const char __user *, newna >=20 > int vfs_whiteout(struct inode *dir, struct dentry *dentry) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, false); > if (error) > return error; >=20 > diff --git a/include/linux/fs.h b/include/linux/fs.h > index 4efa435..d6e2330 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -82,6 +82,8 @@ typedef void (dax_iodone_t)(struct buffer_head = *bh_map, int uptodate); > #define MAY_CHDIR 0x00000040 > /* called from RCU mode, don't block */ > #define MAY_NOT_BLOCK 0x00000080 > +#define MAY_CREATE_FILE 0x00000100 > +#define MAY_CREATE_DIR 0x00000200 >=20 > /* > * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must = correspond > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_CF1F0347-94B9-4516-BCFE-FD637F708057 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVj0UgnKl2rkXzB/gAQj0pQ//S0x5zpIJIIlg0ZToZKnQtKv6YKa2Qsbu 60fY9fT901YO7DeSsO3F8e+qx8RYRDOTjtfedLalum7CxEd8BAmeY6EK17KVR0Fn m1lgacRF7bbplLEtiCtSkn1a26TbZPuMF0Z3YApvGWyBxZ0+0zaYKKOiPyZ8Ybz8 2NrltLToKzMxDzoMvsPE2+L4g1sxRwtiPhHiMs9/2oLJ64ML7ppNrzJn2dnGksDS XP1g4iv2sWf82jms2RFiZ0/2rECUkFZfWhcVbjSinHmM7H1+furXJ9H1pnMji0/j WyypBGlC4z0ovaOYXsJfrSv0jnS5XnoWXK3nQR+rGA6NvyujCPs5NjjpI8mrU+Yt Yv+ORJdhyOmVwtSZo4C4Nx1PDlki74WFoXiYkF5L5OorztgCxcdF4xtTxr7BY9J7 HwtIpXrxYUNHAfaSyPdj5zVSk1cED3Pgs0pdxkiSEgkX26ZZ/jZMzV1UYmvOsOvC UY0rgVHcHKtX5tWZ8mXUtIhVV0kugt3loj6JYiEhYPsUMcpq5xk9KqTQTfjYA2q+ U9EUjHjtZIKFH7Bw8XpXHdSF8Tww7wY2T/Dx5equgoiHn71wxqrXdfsqhhM90WSM 2B3ghmZaNdfnwSdQf3nR5A1Pfqoupq39BT+Gdx+VouIWNbGXFLxmDjCKxEeaKy9x Jgfoz+qXk6Y= =TK5q -----END PGP SIGNATURE----- --Apple-Mail=_CF1F0347-94B9-4516-BCFE-FD637F708057-- From adilger@dilger.ca Fri Nov 6 15:04:21 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1882B7F76 for ; Fri, 6 Nov 2015 15:04:21 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 04AD78F8033 for ; Fri, 6 Nov 2015 13:04:17 -0800 (PST) X-ASG-Debug-ID: 1446843852-04cb6c296b8e110001-NocioJ Received: from mail-pa0-f53.google.com (mail-pa0-f53.google.com [209.85.220.53]) by cuda.sgi.com with ESMTP id p1kxy2VAtI5cXwkG (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 06 Nov 2015 13:04:13 -0800 (PST) X-Barracuda-Envelope-From: adilger@dilger.ca X-Barracuda-RBL-Trusted-Forwarder: 209.85.220.53 Received: by pabfh17 with SMTP id fh17so133462618pab.0 for ; Fri, 06 Nov 2015 13:04:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dilger_ca.20150623.gappssmtp.com; s=20150623; h=subject:mime-version:content-type:from:in-reply-to:date:cc :message-id:references:to; bh=manz7KPaObuZ9L4QKC/42CcUOC8b0o782EuYEUxn4Zo=; b=hfOSnhFjc1bX//TvJTpHIV0DpMr57D0C7ZtMUgWuUsVsigWR5s7mBHb5oxplCXdqHI Riouw+9MgBEGCgbZJDb/TuEg1VVRuNGVfWCZanY0JOTXHXSbWCMQ9ZTdTSFvDZ1cn13z Sg6kUEgWxfBR6zx8Woaa+5clFf887+GJe80XkbbzFlVfawIdOsgsqDMywWxl7nr5uhiC bDEDWs9NpTNxpc0633FUJNKkRaHZLPheCtKhIfpAffjH2sk4ysv0IxDuD5NCRnBneNcc 7KKitXuoz6TYjcc1BwDQRKv5NcKzXx8hwvZv6EZlbkoNoJdyPdM4+0QL9T/Of9clxjYQ ctpA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:mime-version:content-type:from :in-reply-to:date:cc:message-id:references:to; bh=manz7KPaObuZ9L4QKC/42CcUOC8b0o782EuYEUxn4Zo=; b=Gl576t2kHOfvV3lSK3R8DKiyoT3t6+qj0VgpI6R1UUcCYivO8x5YVgEN8hbFuQDWzx 8N/flN4ELS1nn91rcHY2h1x/x9bkm8XSGRfPtKmUsxzC9ixRVUg0WBu4FMe+7Lx6J6lV VBjsIawYz9dMGl7WhTNC0Egpx5jrlUhZanvhxPNrJEmZOuGv7yGyumqrvBHa4FxJnjL9 BdG+G9XBXwfaOZ5sBLHlTHE2Cx0UcheztO1dk1t0r1UlRa0IDSg8TpUl1JhyMxnDnVxg ezavbzgbbpputceFxStT2KwkNhcMKU7eKlNdx5p/0srMJmZHyN1O7hBY0/ouBxx3uPmD VmXw== X-Gm-Message-State: ALoCoQlXFqiU3IK25SNTmQctFpQI/Cr0Ps3YlC0wc5cDmIGfDidBSVuuJ56u5ZFyUSN1cZthyNaT X-Received: by 10.68.103.227 with SMTP id fz3mr20534989pbb.159.1446843852538; Fri, 06 Nov 2015 13:04:12 -0800 (PST) Received: from cabot-wlan.adilger.int (S0106002191d9348b.cg.shawcable.net. [96.51.76.157]) by smtp.gmail.com with ESMTPSA id ux3sm1739493pac.18.2015.11.06.13.04.10 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 06 Nov 2015 13:04:11 -0800 (PST) Subject: Re: [PATCH v14 04/22] vfs: Make the inode passed to inode_change_ok non-const X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v14 04/22] vfs: Make the inode passed to inode_change_ok non-const Content-Type: multipart/signed; boundary="Apple-Mail=_C50AB9E3-D3AC-4D52-99DF-74EAB42E7D8D"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446723580-3747-5-git-send-email-agruenba@redhat.com> Date: Fri, 6 Nov 2015 14:04:07 -0700 Cc: Alexander Viro , Theodore Ts'o , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Message-Id: References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> <1446723580-3747-5-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f53.google.com[209.85.220.53] X-Barracuda-Start-Time: 1446843853 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24173 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_C50AB9E3-D3AC-4D52-99DF-74EAB42E7D8D Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On Nov 5, 2015, at 4:39 AM, Andreas Gruenbacher = wrote: >=20 > We will need to call iop->permission and iop->get_acl from > inode_change_ok() for additional permission checks, and both take a > non-const inode. Seems unfortunate that those functions cannot themselves be changed to take a const struct inode, but it doesn't look possible. Reviewed-by: Andreas Dilger > Signed-off-by: Andreas Gruenbacher > Reviewed-by: J. Bruce Fields > --- > fs/attr.c | 2 +- > include/linux/fs.h | 2 +- > 2 files changed, 2 insertions(+), 2 deletions(-) >=20 > diff --git a/fs/attr.c b/fs/attr.c > index 6530ced..328be71 100644 > --- a/fs/attr.c > +++ b/fs/attr.c > @@ -28,7 +28,7 @@ > * Should be called as the first thing in ->setattr implementations, > * possibly after taking additional locks. > */ > -int inode_change_ok(const struct inode *inode, struct iattr *attr) > +int inode_change_ok(struct inode *inode, struct iattr *attr) > { > unsigned int ia_valid =3D attr->ia_valid; >=20 > diff --git a/include/linux/fs.h b/include/linux/fs.h > index 402acd7..aab32c8 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -2871,7 +2871,7 @@ extern int buffer_migrate_page(struct = address_space *, > #define buffer_migrate_page NULL > #endif >=20 > -extern int inode_change_ok(const struct inode *, struct iattr *); > +extern int inode_change_ok(struct inode *, struct iattr *); > extern int inode_newsize_ok(const struct inode *, loff_t offset); > extern void setattr_copy(struct inode *inode, const struct iattr = *attr); >=20 > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_C50AB9E3-D3AC-4D52-99DF-74EAB42E7D8D Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVj0Vx3Kl2rkXzB/gAQjYHQ/+L9LDlXVXWGi/GhDrCiBpnUWSkDNUm3a+ Vwxf/j2ZpsEZpgjz/sjgi+c189DNa1ZhpRe6M9kUYIQqofiHfYS+Yx3GpDvyCzUo qmXtDGSPMRzsOjMNlx9NPoQULPutHRWJcKvHTXypQHGl3qbezEFvbUfP47l0trqQ xir5U2N4z13p2ipJTq2Y7FstNqOgNU/xiF+BUeFlFDS5S8K6gXQVsAwhOHBpzRMp A5v60jIbYtP5MmRiKDSbrEQLQte1g4rIlKklWIsjAmTbK98CRc8f3eb4V+DXYzNp rjoTsY8H2XoJJeYmFe9/+CxVI/ICOoaCSRRZ9aV9hkff1gz2CifXM5kGy4WWO3Md puhLHUJIUNhmSqWJEsDCJOegOS7XlrnrFLscv4VkCpse7UM9kMtn/ZtJABzQItfk 5DQ4OCoR9u2tXJlyVG8XWHiKzpNYL0ehDeYlIagguHgir0bM5lj4cji3vmoCGDZS lU5vGydGX6nR8zeaTuPgGULObDEPOEi1jlDcyuSQz9VIhqTfuNgNPoZibZDhSYoH zb6T3pNiV4peHzRZ1E8Pi/pZ7yVEdtuKQWSP34QyDjspnANm1panb7MtIEo09TIk GPwEePLgLRlsrnD1bl1BhuZ4eby+yLYJp2c/AZnovrI4d7Wp1IQc4k9LFR5qB0ai 2AwZOWhuDpg= =SiKg -----END PGP SIGNATURE----- --Apple-Mail=_C50AB9E3-D3AC-4D52-99DF-74EAB42E7D8D-- From adilger@dilger.ca Fri Nov 6 15:26:55 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 558A57F84 for ; Fri, 6 Nov 2015 15:26:55 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 32FF8304039 for ; Fri, 6 Nov 2015 13:26:55 -0800 (PST) X-ASG-Debug-ID: 1446845212-04cbb02424969e0001-NocioJ Received: from mail-pa0-f44.google.com (mail-pa0-f44.google.com [209.85.220.44]) by cuda.sgi.com with ESMTP id n3dGgEkcmgmmvbdW (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 06 Nov 2015 13:26:53 -0800 (PST) X-Barracuda-Envelope-From: adilger@dilger.ca X-Barracuda-RBL-Trusted-Forwarder: 209.85.220.44 Received: by pabfh17 with SMTP id fh17so133929814pab.0 for ; Fri, 06 Nov 2015 13:26:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dilger_ca.20150623.gappssmtp.com; s=20150623; h=subject:mime-version:content-type:from:in-reply-to:date:cc :message-id:references:to; bh=JvHMdQlbQAOdZ4EPzseOVQaIWunRi0hCA8/C1mDWubM=; b=WINoaDlwhnU5kYPV7Y0/Gl8sUhe0RzOcPngaRp/puyw/iRZPk5D9AEk6/LjmkHz2vi svSNVrIw2QfiSL61dnHRHqHwPssAycp4j5raXegnwPF+VEqgou2+HUp5QTOAbNp9BP+x LCBqxxTI3xlRMeZKpUT0ArMHurkb+j/h/Rcc9V403AAVWeEvFt1fOE9sD1D63xjC5FyE k+i9OfuTV7Rk5G6PYZ6FetFfJFqZwJL8TGzR0RlodpnuMoLrClzlaWVr4RWPvX/prSeX rRZeZns3l68Euozmcxyvzrol0n0v26kzA/10CKq6D93IbATi80iTOt93PEN6lPvrBIDW PWCw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:mime-version:content-type:from :in-reply-to:date:cc:message-id:references:to; bh=JvHMdQlbQAOdZ4EPzseOVQaIWunRi0hCA8/C1mDWubM=; b=TsQwiQJej54WgxewsLct6iO+J9C0vm7a4X6axvn74j+fssytwsI1OdX/duNrcT6sda h9WdKrYH23JdNUIbAOZ48K+MKvjMOpRB6WyJ78LR2CrVUzOczlMdgK1BmHgOsSMQcFYc 7uG3Fw/1aGb8Ct3aQ1ZHZ7GMKuleN6erw+lzhroyojJv1T033XCRWaM9Q786rUX3HGUV g0qM11xh/1PbAWM8WYPIUsfeMOaTIgBV2JlmIW36Ql2fZkC+a4k/0dEoTsCX3AOmSr2s l289EiCI1srRypXgUmngv6zvwjj1PGZbhK8SoTAVXqxvxvqHfJ7UNSDxw5/P2iALNCFB zJYA== X-Gm-Message-State: ALoCoQnLxEdbWIQKgQnbDhiv3HJHZ0/wEsL9Ca2rvQBQJOyDrNPmf5AMU7p0qA8jIAW4pl+4W3Fc X-Received: by 10.66.227.1 with SMTP id rw1mr20584458pac.35.1446845212452; Fri, 06 Nov 2015 13:26:52 -0800 (PST) Received: from cabot-wlan.adilger.int (S0106002191d9348b.cg.shawcable.net. [96.51.76.157]) by smtp.gmail.com with ESMTPSA id ph8sm1823278pbc.8.2015.11.06.13.26.50 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 06 Nov 2015 13:26:51 -0800 (PST) Subject: Re: [PATCH v14 03/22] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v14 03/22] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags Content-Type: multipart/signed; boundary="Apple-Mail=_686D8F26-4634-4110-89A3-CE8E4878A295"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446723580-3747-4-git-send-email-agruenba@redhat.com> Date: Fri, 6 Nov 2015 14:26:45 -0700 Cc: Alexander Viro , Theodore Ts'o , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Message-Id: <8C966D9B-A46D-47EC-BD4B-20E2F9B42555@dilger.ca> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> <1446723580-3747-4-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f44.google.com[209.85.220.44] X-Barracuda-Start-Time: 1446845213 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24174 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_686D8F26-4634-4110-89A3-CE8E4878A295 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Nov 5, 2015, at 4:39 AM, Andreas Gruenbacher = wrote: >=20 > Normally, deleting a file requires MAY_WRITE access to the parent > directory. With richacls, a file may be deleted with MAY_DELETE_CHILD = access > to the parent directory or with MAY_DELETE_SELF access to the file. >=20 > To support that, pass the MAY_DELETE_CHILD mask flag to = inode_permission() > when checking for delete access inside a directory, and = MAY_DELETE_SELF > when checking for delete access to a file itelf. >=20 > The MAY_DELETE_SELF permission overrides the sticky directory check. >=20 > Signed-off-by: Andreas Gruenbacher > Reviewed-by: J. Bruce Fields > --- > fs/namei.c | 21 ++++++++++++--------- > include/linux/fs.h | 2 ++ > 2 files changed, 14 insertions(+), 9 deletions(-) >=20 > diff --git a/fs/namei.c b/fs/namei.c > index 0259392..2eab19e 100644 > --- a/fs/namei.c > +++ b/fs/namei.c > @@ -453,9 +453,9 @@ static int sb_permission(struct super_block *sb, = struct inode *inode, int mask) > * this, letting us set arbitrary permissions for filesystem access = without > * changing the "normal" UIDs which are used for other things. > * > - * MAY_WRITE must be set in @mask whenever MAY_APPEND, = MAY_CREATE_FILE, or > - * MAY_CREATE_DIR are set. That way, file systems that don't support = these > - * permissions will check for MAY_WRITE instead. > + * MAY_WRITE must be set in @mask whenever MAY_APPEND, = MAY_CREATE_FILE, > + * MAY_CREATE_DIR, or MAY_DELETE_CHILD are set. That way, file = systems that > + * don't support these permissions will check for MAY_WRITE instead. > */ > int inode_permission(struct inode *inode, int mask) > { > @@ -2555,7 +2555,7 @@ static int may_delete(struct inode *dir, struct = dentry *victim, > bool isdir, bool replace) > { > struct inode *inode =3D d_backing_inode(victim); > - int error, mask =3D MAY_WRITE | MAY_EXEC; > + int error, mask =3D MAY_EXEC; >=20 > if (d_is_negative(victim)) > return -ENOENT; > @@ -2565,15 +2565,18 @@ static int may_delete(struct inode *dir, = struct dentry *victim, > audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); >=20 > if (replace) > - mask |=3D isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; > - error =3D inode_permission(dir, mask); > + mask |=3D MAY_WRITE | (isdir ? MAY_CREATE_DIR : = MAY_CREATE_FILE); > + error =3D inode_permission(dir, mask | MAY_WRITE | = MAY_DELETE_CHILD); > + if (!error && check_sticky(dir, inode)) > + error =3D -EPERM; > + if (error && IS_RICHACL(inode) && > + inode_permission(inode, MAY_DELETE_SELF) =3D=3D 0) > + error =3D 0; This looks like a serious bug, as it is overriding other errors returned from inode_permission() such as -EROFS from sb_permission() or even from generic_permission->acl_permission_check(). Clearing the error returned by an earlier check doesn't seem safe, only new errors should be added. The call to inode_permission(inode) is also duplicating the = sb_permission() check from inode_permission(dir), so at most should be = __inode_permission(). It looks like this would be correct if you check MAY_DELETE_SELF = together with check_sticky(): if (!error && check_sticky(dir, inode) && !__inode_permission(inode, MAY_DELETE_SELF)) error =3D -EPERM; I ommitted the IS_RICHACL() check here, since that should probably be in __inode_permission() when MAY_DELETE_SELF is passed? Cheers, Andreas > if (error) > return error; > if (IS_APPEND(dir)) > return -EPERM; > - > - if (check_sticky(dir, inode) || IS_APPEND(inode) || > - IS_IMMUTABLE(inode) || IS_SWAPFILE(inode)) > + if (IS_APPEND(inode) || IS_IMMUTABLE(inode) || = IS_SWAPFILE(inode)) > return -EPERM; > if (isdir) { > if (!d_is_dir(victim)) > diff --git a/include/linux/fs.h b/include/linux/fs.h > index d6e2330..402acd7 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -84,6 +84,8 @@ typedef void (dax_iodone_t)(struct buffer_head = *bh_map, int uptodate); > #define MAY_NOT_BLOCK 0x00000080 > #define MAY_CREATE_FILE 0x00000100 > #define MAY_CREATE_DIR 0x00000200 > +#define MAY_DELETE_CHILD 0x00000400 > +#define MAY_DELETE_SELF 0x00000800 >=20 > /* > * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must = correspond > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_686D8F26-4634-4110-89A3-CE8E4878A295 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVj0bFXKl2rkXzB/gAQgVMw/9HRWeCdxHmVddBJ/NJ4cEapoGKeJnXALg cLCr0ABLWmBJr3IH+IUcb717xKy9DtCjIMB5WIRCi6xhaNqfm+4ytLpQ34zLq006 EXkyLU/RMK2/x1OI/VsPHZ6LX8SAHqIwq5pJ8ZDd8ZuwA74DRwY6txYEyRHOptdT xffUViiy+5tEJChnqJgi4gMSaGXamyoUjJ/YfF1/TftgMq7Iil8DC6JtcfUtEuTu NhXsPhpGl4Dfz+jOyZd09CmaKDdeXHoE9o/0vEjZz6A20yS1zC5fbjQ0UwqMUDT9 WDyxa9WbLArpUalW/L0tRE1l34n/rfIqIBz0gSF0Uw/cjE6mPb40Vc+W4AWkUEZl K3LWTq6aXdSn9oXmPDW5/4y3lVVeJ0DLRHCMkgkKGyx0U2zcHyHkA+iEIYM7+0FL 2nJ7KBig+DX2O/qXvsygIfYiaOsLJTnkz+8s6hOh041lbNSOK9Ul9E1IjAGd4VV3 Ft7+qLEtN0LT464Lj2SxfSRh3B+Ug+ylVgNiC496XILMSGAga7ORSNeoKDhMbO1h b+KHBY8hHgQL446CHtIiMEveBtXEgKK7DH0zdl2kpTtGwTMmwOHsZ/6IVUeBKZGh V4dD1jpUZtmqgNsxysAMs2bCH7R+w+1syXB09lP4+KTaGlQeSATGtlFkZ4Ow2i1l rxiI67P1K2g= =Vb9Z -----END PGP SIGNATURE----- --Apple-Mail=_686D8F26-4634-4110-89A3-CE8E4878A295-- From adilger@dilger.ca Fri Nov 6 15:27:27 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7E9477F87 for ; Fri, 6 Nov 2015 15:27:27 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6B6878F8033 for ; Fri, 6 Nov 2015 13:27:27 -0800 (PST) X-ASG-Debug-ID: 1446845244-04cb6c296c8e6b0001-NocioJ Received: from mail-pa0-f42.google.com (mail-pa0-f42.google.com [209.85.220.42]) by cuda.sgi.com with ESMTP id MK3asVQELXuLRjJI (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 06 Nov 2015 13:27:25 -0800 (PST) X-Barracuda-Envelope-From: adilger@dilger.ca X-Barracuda-RBL-Trusted-Forwarder: 209.85.220.42 Received: by pabfh17 with SMTP id fh17so133940976pab.0 for ; Fri, 06 Nov 2015 13:27:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dilger_ca.20150623.gappssmtp.com; s=20150623; h=subject:mime-version:content-type:from:in-reply-to:date:cc :message-id:references:to; bh=omLVCI/9skm3KbLDDNifEhsAAATeZRiE8R5CGlB97hM=; b=J3LBtTzji7rjK5s9kn0jWLMiyTcnJPIBuTCcs1lgBk0HVzp2hpvONsKhUCX6GqzIUR /r5F5qDlglv7dVUavBn8/Ta15/bhmycxsFb1W4eBThU0MrIocAch8MMSrp6WdcWtER5z fC9Dhd9nRwLTC2HTkImmNhLJR1qb9C8lxnVeLf/SEP1VbFLTQfLD0THyJwWtVR3MG0oV S5mEz0gRRzUnpS8j1gvYeOLLw7jtziBAWH/wQOq8Ruw1yChHGuyBMQyphbPbthVRY8tM mwqbvl06F+DL1IgUTJEZFsSrKzaDn3gjt3iRCOagwNwnFlkgpgScDCjD452Lnh+ERA5+ M4KQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:mime-version:content-type:from :in-reply-to:date:cc:message-id:references:to; bh=omLVCI/9skm3KbLDDNifEhsAAATeZRiE8R5CGlB97hM=; b=CInCNmiz7Fl1EZRTBiL7jtao4XKF9vqESamFk5KZQyfMF2/F5BBh8I8zRbCE5sQCFs pru3vlwqQYW9GMrH8s8H8ZNL/AakuTBPiDXgGS4l/DqZkDe+jmUfkvFUDkwy85+Re9Vi QciMIeG6Y51QoJ9nt21y9r5YExmkRsNcqDMoAJju+ekZRWO6hSiyB30tP4NNNZpK+E6q LJSBU6Xn0jCaWF3GMMnbrknLZVIQoLRhaj2hDoliqZUO3oKl6/bq7uTxkRmLz/5pWf4c 537Cd01GqYpmzUZAH5SdM3OYqjbqBCx9mTq8xjHrcXZ4kjbNPn83sIFefRLMytjhKrhY hfJA== X-Gm-Message-State: ALoCoQlFLp8/b15g1+3uhoG19ZUPHCIsT3qLB3nPwHnQtV7XekmMGcooMzlS9Kb5WcffYOnHW6t0 X-Received: by 10.68.139.225 with SMTP id rb1mr20474905pbb.33.1446845244820; Fri, 06 Nov 2015 13:27:24 -0800 (PST) Received: from cabot-wlan.adilger.int (S0106002191d9348b.cg.shawcable.net. [96.51.76.157]) by smtp.gmail.com with ESMTPSA id ph8sm1823278pbc.8.2015.11.06.13.27.22 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 06 Nov 2015 13:27:23 -0800 (PST) Subject: Re: [PATCH v14 03/22] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v14 03/22] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags Content-Type: multipart/signed; boundary="Apple-Mail=_2915270B-23EA-4C7B-BE26-9213A7A0F9C4"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446723580-3747-4-git-send-email-agruenba@redhat.com> Date: Fri, 6 Nov 2015 14:26:45 -0700 Cc: Alexander Viro , Theodore Ts'o , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Message-Id: <88120453-8E06-481C-90C7-5D7E7B279C4E@dilger.ca> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> <1446723580-3747-4-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f42.google.com[209.85.220.42] X-Barracuda-Start-Time: 1446845245 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24174 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_2915270B-23EA-4C7B-BE26-9213A7A0F9C4 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Nov 5, 2015, at 4:39 AM, Andreas Gruenbacher = wrote: >=20 > Normally, deleting a file requires MAY_WRITE access to the parent > directory. With richacls, a file may be deleted with MAY_DELETE_CHILD = access > to the parent directory or with MAY_DELETE_SELF access to the file. >=20 > To support that, pass the MAY_DELETE_CHILD mask flag to = inode_permission() > when checking for delete access inside a directory, and = MAY_DELETE_SELF > when checking for delete access to a file itelf. >=20 > The MAY_DELETE_SELF permission overrides the sticky directory check. >=20 > Signed-off-by: Andreas Gruenbacher > Reviewed-by: J. Bruce Fields > --- > fs/namei.c | 21 ++++++++++++--------- > include/linux/fs.h | 2 ++ > 2 files changed, 14 insertions(+), 9 deletions(-) >=20 > diff --git a/fs/namei.c b/fs/namei.c > index 0259392..2eab19e 100644 > --- a/fs/namei.c > +++ b/fs/namei.c > @@ -453,9 +453,9 @@ static int sb_permission(struct super_block *sb, = struct inode *inode, int mask) > * this, letting us set arbitrary permissions for filesystem access = without > * changing the "normal" UIDs which are used for other things. > * > - * MAY_WRITE must be set in @mask whenever MAY_APPEND, = MAY_CREATE_FILE, or > - * MAY_CREATE_DIR are set. That way, file systems that don't support = these > - * permissions will check for MAY_WRITE instead. > + * MAY_WRITE must be set in @mask whenever MAY_APPEND, = MAY_CREATE_FILE, > + * MAY_CREATE_DIR, or MAY_DELETE_CHILD are set. That way, file = systems that > + * don't support these permissions will check for MAY_WRITE instead. > */ > int inode_permission(struct inode *inode, int mask) > { > @@ -2555,7 +2555,7 @@ static int may_delete(struct inode *dir, struct = dentry *victim, > bool isdir, bool replace) > { > struct inode *inode =3D d_backing_inode(victim); > - int error, mask =3D MAY_WRITE | MAY_EXEC; > + int error, mask =3D MAY_EXEC; >=20 > if (d_is_negative(victim)) > return -ENOENT; > @@ -2565,15 +2565,18 @@ static int may_delete(struct inode *dir, = struct dentry *victim, > audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); >=20 > if (replace) > - mask |=3D isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; > - error =3D inode_permission(dir, mask); > + mask |=3D MAY_WRITE | (isdir ? MAY_CREATE_DIR : = MAY_CREATE_FILE); > + error =3D inode_permission(dir, mask | MAY_WRITE | = MAY_DELETE_CHILD); > + if (!error && check_sticky(dir, inode)) > + error =3D -EPERM; > + if (error && IS_RICHACL(inode) && > + inode_permission(inode, MAY_DELETE_SELF) =3D=3D 0) > + error =3D 0; This looks like a serious bug, as it is overriding other errors returned from inode_permission() such as -EROFS from sb_permission() or even from generic_permission->acl_permission_check(). Clearing the error returned by an earlier check doesn't seem safe, only new errors should be added. The call to inode_permission(inode) is also duplicating the = sb_permission() check from inode_permission(dir), so at most should be = __inode_permission(). It looks like this would be correct if you check MAY_DELETE_SELF = together with check_sticky(): if (!error && check_sticky(dir, inode) && !__inode_permission(inode, MAY_DELETE_SELF)) error =3D -EPERM; I ommitted the IS_RICHACL() check here, since that should probably be in __inode_permission() when MAY_DELETE_SELF is passed? Cheers, Andreas > if (error) > return error; > if (IS_APPEND(dir)) > return -EPERM; > - > - if (check_sticky(dir, inode) || IS_APPEND(inode) || > - IS_IMMUTABLE(inode) || IS_SWAPFILE(inode)) > + if (IS_APPEND(inode) || IS_IMMUTABLE(inode) || = IS_SWAPFILE(inode)) > return -EPERM; > if (isdir) { > if (!d_is_dir(victim)) > diff --git a/include/linux/fs.h b/include/linux/fs.h > index d6e2330..402acd7 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -84,6 +84,8 @@ typedef void (dax_iodone_t)(struct buffer_head = *bh_map, int uptodate); > #define MAY_NOT_BLOCK 0x00000080 > #define MAY_CREATE_FILE 0x00000100 > #define MAY_CREATE_DIR 0x00000200 > +#define MAY_DELETE_CHILD 0x00000400 > +#define MAY_DELETE_SELF 0x00000800 >=20 > /* > * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must = correspond > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_2915270B-23EA-4C7B-BE26-9213A7A0F9C4 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVj0bFXKl2rkXzB/gAQgVMw/9HRWeCdxHmVddBJ/NJ4cEapoGKeJnXALg cLCr0ABLWmBJr3IH+IUcb717xKy9DtCjIMB5WIRCi6xhaNqfm+4ytLpQ34zLq006 EXkyLU/RMK2/x1OI/VsPHZ6LX8SAHqIwq5pJ8ZDd8ZuwA74DRwY6txYEyRHOptdT xffUViiy+5tEJChnqJgi4gMSaGXamyoUjJ/YfF1/TftgMq7Iil8DC6JtcfUtEuTu NhXsPhpGl4Dfz+jOyZd09CmaKDdeXHoE9o/0vEjZz6A20yS1zC5fbjQ0UwqMUDT9 WDyxa9WbLArpUalW/L0tRE1l34n/rfIqIBz0gSF0Uw/cjE6mPb40Vc+W4AWkUEZl K3LWTq6aXdSn9oXmPDW5/4y3lVVeJ0DLRHCMkgkKGyx0U2zcHyHkA+iEIYM7+0FL 2nJ7KBig+DX2O/qXvsygIfYiaOsLJTnkz+8s6hOh041lbNSOK9Ul9E1IjAGd4VV3 Ft7+qLEtN0LT464Lj2SxfSRh3B+Ug+ylVgNiC496XILMSGAga7ORSNeoKDhMbO1h b+KHBY8hHgQL446CHtIiMEveBtXEgKK7DH0zdl2kpTtGwTMmwOHsZ/6IVUeBKZGh V4dD1jpUZtmqgNsxysAMs2bCH7R+w+1syXB09lP4+KTaGlQeSATGtlFkZ4Ow2i1l rxiI67P1K2g= =Vb9Z -----END PGP SIGNATURE----- --Apple-Mail=_2915270B-23EA-4C7B-BE26-9213A7A0F9C4-- From david@fromorbit.com Fri Nov 6 16:32:46 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9A7747F58 for ; Fri, 6 Nov 2015 16:32:46 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 87E5E304039 for ; Fri, 6 Nov 2015 14:32:43 -0800 (PST) X-ASG-Debug-ID: 1446849159-04cbb0242597bd0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id srRk4THSzkHowi81 for ; Fri, 06 Nov 2015 14:32:40 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CZBwCEKT1WPBB4LHleKAECgxBTb4JeqEoBAQEBAQEGizCFKoQJIYVpBAICgTpNAQEBAQEBBwEBAQFBP4Q2AQEEOhwjEAgDGAklDwUlAwcaE4gtDsEHAQshGYV0hUWCcYZIBZZIhR2IAJxMhHsqNAGFEwEBAQ Received: from ppp121-44-120-16.lns20.syd4.internode.on.net (HELO dastard) ([121.44.120.16]) by ipmail06.adl2.internode.on.net with ESMTP; 07 Nov 2015 09:02:39 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZupYk-0008Uc-7J; Sat, 07 Nov 2015 09:32:38 +1100 Date: Sat, 7 Nov 2015 09:32:38 +1100 From: Dave Chinner To: Ross Zwisler Cc: xfs@oss.sgi.com, jack@suse.cz Subject: Re: [PATCH 0/6 V2] xfs: upfront block zeroing for DAX Message-ID: <20151106223238.GT10656@dastard> X-ASG-Orig-Subj: Re: [PATCH 0/6 V2] xfs: upfront block zeroing for DAX References: <1445225238-30413-1-git-send-email-david@fromorbit.com> <20151105234827.GA5771@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151105234827.GA5771@linux.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1446849160 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24175 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Nov 05, 2015 at 04:48:27PM -0700, Ross Zwisler wrote: > On Mon, Oct 19, 2015 at 02:27:12PM +1100, Dave Chinner wrote: > > Hi folks, > > > > This is an updated patch set that was first posted here: > > > > http://oss.sgi.com/archives/xfs/2015-10/msg00006.html > > > > I've dropped the DAX locking revert patch from it; that's on it's > > way to Linus via other channels and is essentially independent to > > this set of XFS changes. > > > > The only real change in the XFS code between the two versions is the > > addition of XFS_TRANS_RESERVE in the DAX path in > > xfs_iomap_write_direct() to allow it to dip into the reserve block > > pool for unwritten extent conversion rather than reporting ENOSPC. > > > > Patches are against 4.3-rc5 + XFS for-next branch. > > > > -Dave. > > Hey Dave, > > I was going to start testing these, but I'm having trouble finding a baseline > where they apply cleanly. It looks like xfs/for-next already contains v1 of > the series, and they don't seem to apply cleanly to the current > xfs/xfs-misc-fixes-for-4.4-2 nor to v4.3. The xfs repo I'm looking at is > git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git The xfs-dax-updates branch of that kernel contains the v3 version of the patches I posted a few days ago. i.e. just pull the for-next branch of the XFS tree, because that already contains all the patches integrated into the rest of the XFS for-next tree... Cheers, Dave. -- Dave Chinner david@fromorbit.com From vskytta@gmail.com Sat Nov 7 04:05:49 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 974F17F75 for ; Sat, 7 Nov 2015 04:05:49 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 779388F8033 for ; Sat, 7 Nov 2015 02:05:46 -0800 (PST) X-ASG-Debug-ID: 1446890742-04cbb02422a1df0001-NocioJ Received: from mail-lf0-f44.google.com (mail-lf0-f44.google.com [209.85.215.44]) by cuda.sgi.com with ESMTP id NvYWR1FnoF3GrAY9 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sat, 07 Nov 2015 02:05:43 -0800 (PST) X-Barracuda-Envelope-From: vskytta@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.215.44 Received: by lfs39 with SMTP id 39so51612614lfs.3 for ; Sat, 07 Nov 2015 02:05:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:subject:date:message-id:mime-version:content-type :content-transfer-encoding; bh=A3VRmkprpw/XaS2tnD+7tX7Tweho8d92H5Ext1bpmWc=; b=fnSG8nfpucF7/LgV7ZTnmFI1laZ5X1CCjQbo4ClyqNbaUKGVPHzivAIBPwAXj7di9/ lppHP1VZxyhtA0zpxK2ASfmFCGyZI2KRTxAx3OgLEtRlosUQ+HpRMp9UK6qHQtcV1GLR /eqFoa+rTLCgqvRiwIz5RaAIEaweBC9IcSXli56urE7GumRAHjj2F/3SlUhi9BowobID ImnTTmBXbkeKbHTLkwe9CPlh4hhrSDOT03EN9ksDn7E+/hJRqw0cTr2J3iw9KQOBPk0I UNj3BPTt5budUnWqIGajoyoAOylMQqkQ/pYJJFEzy3RsnRndvAKw8jlGEr2Utt5VBUbD IFMg== X-Received: by 10.25.87.82 with SMTP id l79mr5662126lfb.64.1446890742085; Sat, 07 Nov 2015 02:05:42 -0800 (PST) Received: from viper.bobcat.mine.nu (62-78-200-229.bb.dnainternet.fi. [62.78.200.229]) by smtp.gmail.com with ESMTPSA id br10sm714794lbb.4.2015.11.07.02.05.41 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 07 Nov 2015 02:05:41 -0800 (PST) Sender: =?UTF-8?Q?Ville_Skytt=C3=A4?= From: =?UTF-8?q?Ville=20Skytt=C3=A4?= To: xfs@oss.sgi.com Subject: [PATCH 1/2] xfs_db.8: Remove stray backslash near bmap Date: Sat, 7 Nov 2015 12:05:39 +0200 X-ASG-Orig-Subj: [PATCH 1/2] xfs_db.8: Remove stray backslash near bmap Message-Id: <1446890740-25659-1-git-send-email-ville.skytta@iki.fi> X-Mailer: git-send-email 2.4.3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: mail-lf0-f44.google.com[209.85.215.44] X-Barracuda-Start-Time: 1446890743 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24189 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Signed-off-by: Ville Skyttä --- man/man8/xfs_db.8 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/man/man8/xfs_db.8 b/man/man8/xfs_db.8 index 681efc4..5745b22 100644 --- a/man/man8/xfs_db.8 +++ b/man/man8/xfs_db.8 @@ -315,7 +315,7 @@ command must have also specified the option. .RE .TP -.BI "bmap [\-a\] [\-d] [" block " [" len ]] +.BI "bmap [\-a] [\-d] [" block " [" len ]] Show the block map for the current inode. The map display can be restricted to an area of the file with the .I block -- 2.4.3 From vskytta@gmail.com Sat Nov 7 04:05:50 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 2CF087F87 for ; Sat, 7 Nov 2015 04:05:50 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id AB985AC002 for ; Sat, 7 Nov 2015 02:05:46 -0800 (PST) X-ASG-Debug-ID: 1446890743-04cbb02425a1e00001-NocioJ Received: from mail-lf0-f53.google.com (mail-lf0-f53.google.com [209.85.215.53]) by cuda.sgi.com with ESMTP id hVGXtun5CKi7ePsl (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sat, 07 Nov 2015 02:05:44 -0800 (PST) X-Barracuda-Envelope-From: vskytta@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.215.53 Received: by lfs39 with SMTP id 39so51612722lfs.3 for ; Sat, 07 Nov 2015 02:05:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:subject:date:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; bh=6P1UayA94mHQj58ZksENPdv6oPmG3wET/K8lRRWQ0Mw=; b=pz4jn3o7Qwpcq6YgyxesWv9PV23wYyKBFL6ZKZkJB+PrPEh0theq0wJbJz+6swyi9a XTGx/5hJn1Pb/QsbZjGyzF3BMnU36IMPlZgtq91eFF/J1FnOqbOdRDLY6iRHC52b0+Um rPxQug/jL0e/EzdDEt/vwqDhXw2YzBRg0GFMDyevjxv0dK0qm38LuIP6GvXTHtNL/w5x OAjc5Gz50LabCuo2/Xyw/jGwcFjWAiQzJN3SsOCbz3mpULc8cQWa2pJP/6QcspRITEi9 a4EvoykkVPtToZvRWP9eYgAzFbcce50lw/DJ3UcarckCNgxRLXVl9Ii62gzQjX8imc3L P1rw== X-Received: by 10.25.131.200 with SMTP id f191mr1857276lfd.65.1446890743354; Sat, 07 Nov 2015 02:05:43 -0800 (PST) Received: from viper.bobcat.mine.nu (62-78-200-229.bb.dnainternet.fi. [62.78.200.229]) by smtp.gmail.com with ESMTPSA id br10sm714794lbb.4.2015.11.07.02.05.42 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 07 Nov 2015 02:05:42 -0800 (PST) Sender: =?UTF-8?Q?Ville_Skytt=C3=A4?= From: =?UTF-8?q?Ville=20Skytt=C3=A4?= To: xfs@oss.sgi.com Subject: [PATCH 2/2] mkfs.xfs.8: Spelling fix Date: Sat, 7 Nov 2015 12:05:40 +0200 X-ASG-Orig-Subj: [PATCH 2/2] mkfs.xfs.8: Spelling fix Message-Id: <1446890740-25659-2-git-send-email-ville.skytta@iki.fi> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1446890740-25659-1-git-send-email-ville.skytta@iki.fi> References: <1446890740-25659-1-git-send-email-ville.skytta@iki.fi> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: mail-lf0-f53.google.com[209.85.215.53] X-Barracuda-Start-Time: 1446890744 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24189 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Signed-off-by: Ville Skyttä --- man/man8/mkfs.xfs.8 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/man/man8/mkfs.xfs.8 b/man/man8/mkfs.xfs.8 index e98b94d..1fe510b 100644 --- a/man/man8/mkfs.xfs.8 +++ b/man/man8/mkfs.xfs.8 @@ -146,7 +146,7 @@ changes also improves crash recovery algorithms and the ability of various tools to validate and repair metadata corruptions when they are found. The CRC algorithm used is CRC32c, so the overhead is dependent on CPU architecture as some CPUs have hardware acceleration of this algorithm. Typically the overhead -of calculating and checking the CRCs is not noticable in normal operation. +of calculating and checking the CRCs is not noticeable in normal operation. .IP By default, .B mkfs.xfs -- 2.4.3 From agruenba@redhat.com Sat Nov 7 11:44:45 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2B8127F5D for ; Sat, 7 Nov 2015 11:44:45 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 185FA304032 for ; Sat, 7 Nov 2015 09:44:41 -0800 (PST) X-ASG-Debug-ID: 1446918279-04cb6c296da1030001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id XWqhhEpME9iLPssJ (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Sat, 07 Nov 2015 09:44:40 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 25AACC02C6B6; Sat, 7 Nov 2015 17:44:38 +0000 (UTC) Received: from nux.redhat.com (vpn1-7-75.ams2.redhat.com [10.36.7.75]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA7HiTOU019263; Sat, 7 Nov 2015 12:44:30 -0500 From: Andreas Gruenbacher To: Andreas Dilger Cc: Andreas Gruenbacher , Alexander Viro , "Theodore Ts'o" , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Subject: Re: [PATCH v14 02/22] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Date: Sat, 7 Nov 2015 18:44:28 +0100 X-ASG-Orig-Subj: Re: [PATCH v14 02/22] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Message-Id: <1446918268-858-1-git-send-email-agruenba@redhat.com> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> <1446723580-3747-3-git-send-email-agruenba@redhat.com> In-Reply-To: X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1446918280 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Nov 6, 2015 at 9:58 PM, Andreas Dilger wrote: > I thought you proposed adding an enum for these parameters, and possibly > making them a single parameter flag, to make the code in the caller more > readable. No, the result would just be different but not any better; vfs_rename would become messy. I've played with this patch some more, and I find the approach below which splits may_delete into may_delete and may_replace much better. What do you think? Thanks, Andreas ---------- 8< ---------- Richacls distinguish between creating non-directories and directories. To support that, add an isdir parameter to may_create(). When checking inode_permission() for create permission, pass in an additional MAY_CREATE_FILE or MAY_CREATE_DIR mask flag. Add may_replace() to allow checking for delete and create access when replacing an existing file in vfs_rename(). Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/namei.c | 49 +++++++++++++++++++++++++++++++++---------------- include/linux/fs.h | 2 ++ 2 files changed, 35 insertions(+), 16 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 224ecf1..4e5dc2f 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -453,7 +453,9 @@ static int sb_permission(struct super_block *sb, struct inode *inode, int mask) * this, letting us set arbitrary permissions for filesystem access without * changing the "normal" UIDs which are used for other things. * - * When checking for MAY_APPEND, MAY_WRITE must also be set in @mask. + * MAY_WRITE must be set in @mask whenever MAY_APPEND, MAY_CREATE_FILE, or + * MAY_CREATE_DIR are set. That way, file systems that don't support these + * permissions will check for MAY_WRITE instead. */ int inode_permission(struct inode *inode, int mask) { @@ -2549,7 +2551,8 @@ EXPORT_SYMBOL(__check_sticky); * 10. We don't allow removal of NFS sillyrenamed files; it's handled by * nfs_async_unlink(). */ -static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) +static int may_delete_replace(struct inode *dir, struct dentry *victim, + bool isdir, int mask) { struct inode *inode = d_backing_inode(victim); int error; @@ -2561,7 +2564,7 @@ static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) BUG_ON(victim->d_parent->d_inode != dir); audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); - error = inode_permission(dir, MAY_WRITE | MAY_EXEC); + error = inode_permission(dir, mask | MAY_WRITE | MAY_EXEC); if (error) return error; if (IS_APPEND(dir)) @@ -2584,6 +2587,18 @@ static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) return 0; } +static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) +{ + return may_delete_replace(dir, victim, isdir, 0); +} + +static int may_replace(struct inode *dir, struct dentry *victim, bool isdir) +{ + int mask = isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; + + return may_delete_replace(dir, victim, isdir, mask); +} + /* Check whether we can create an object with dentry child in directory * dir. * 1. We can't do it if child already exists (open has special treatment for @@ -2592,14 +2607,16 @@ static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) * 3. We should have write and exec permissions on dir * 4. We can't do it if dir is immutable (done in permission()) */ -static inline int may_create(struct inode *dir, struct dentry *child) +static inline int may_create(struct inode *dir, struct dentry *child, bool isdir) { + int mask = isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; + audit_inode_child(dir, child, AUDIT_TYPE_CHILD_CREATE); if (child->d_inode) return -EEXIST; if (IS_DEADDIR(dir)) return -ENOENT; - return inode_permission(dir, MAY_WRITE | MAY_EXEC); + return inode_permission(dir, MAY_WRITE | MAY_EXEC | mask); } /* @@ -2649,7 +2666,7 @@ EXPORT_SYMBOL(unlock_rename); int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool want_excl) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; @@ -3494,7 +3511,7 @@ EXPORT_SYMBOL(user_path_create); int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; @@ -3586,7 +3603,7 @@ SYSCALL_DEFINE3(mknod, const char __user *, filename, umode_t, mode, unsigned, d int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, true); unsigned max_links = dir->i_sb->s_max_links; if (error) @@ -3667,7 +3684,7 @@ EXPORT_SYMBOL(dentry_unhash); int vfs_rmdir(struct inode *dir, struct dentry *dentry) { - int error = may_delete(dir, dentry, 1); + int error = may_delete(dir, dentry, true); if (error) return error; @@ -3789,7 +3806,7 @@ SYSCALL_DEFINE1(rmdir, const char __user *, pathname) int vfs_unlink(struct inode *dir, struct dentry *dentry, struct inode **delegated_inode) { struct inode *target = dentry->d_inode; - int error = may_delete(dir, dentry, 0); + int error = may_delete(dir, dentry, false); if (error) return error; @@ -3923,7 +3940,7 @@ SYSCALL_DEFINE1(unlink, const char __user *, pathname) int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; @@ -4006,7 +4023,7 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de if (!inode) return -ENOENT; - error = may_create(dir, new_dentry); + error = may_create(dir, new_dentry, false); if (error) return error; @@ -4199,14 +4216,14 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry, return error; if (!target) { - error = may_create(new_dir, new_dentry); + error = may_create(new_dir, new_dentry, is_dir); } else { new_is_dir = d_is_dir(new_dentry); if (!(flags & RENAME_EXCHANGE)) - error = may_delete(new_dir, new_dentry, is_dir); + error = may_replace(new_dir, new_dentry, is_dir); else - error = may_delete(new_dir, new_dentry, new_is_dir); + error = may_replace(new_dir, new_dentry, new_is_dir); } if (error) return error; @@ -4469,7 +4486,7 @@ SYSCALL_DEFINE2(rename, const char __user *, oldname, const char __user *, newna int vfs_whiteout(struct inode *dir, struct dentry *dentry) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; diff --git a/include/linux/fs.h b/include/linux/fs.h index 4efa435..d6e2330 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -82,6 +82,8 @@ typedef void (dax_iodone_t)(struct buffer_head *bh_map, int uptodate); #define MAY_CHDIR 0x00000040 /* called from RCU mode, don't block */ #define MAY_NOT_BLOCK 0x00000080 +#define MAY_CREATE_FILE 0x00000100 +#define MAY_CREATE_DIR 0x00000200 /* * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond -- 2.5.0 From agruenba@redhat.com Sat Nov 7 14:47:36 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8E3D67F5D for ; Sat, 7 Nov 2015 14:47:36 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5E4EF8F8049 for ; Sat, 7 Nov 2015 12:47:36 -0800 (PST) X-ASG-Debug-ID: 1446929249-04bdf03f02a8700001-NocioJ Received: from mail-lb0-f173.google.com (mail-lb0-f173.google.com [209.85.217.173]) by cuda.sgi.com with ESMTP id zwVqcq7MNW7PrYBo (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sat, 07 Nov 2015 12:47:30 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.217.173 Received: by lbbkw15 with SMTP id kw15so71622945lbb.0 for ; Sat, 07 Nov 2015 12:47:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=W4yZ2r8YybAP8OxVpeIh0jnUV0rSLWkcuNHo2CZWomo=; b=bszYzKe4tR7rgAl16MI1ZDfS09ppolC7nUbKjGGgAM24jCGjrnJOMpae2PSHgCJjAm tNls+yw6ig8j9oMqtU/CBhQ3XAqWSCQ8GNTSRhSDy508jvnWR1eMgWBQMagbxhWTn1xE +ZK/s5Bv1/tVl7rgWaxbgZ+SZc24H6RfYkcOlWjJKS6zQuTTDpmQVoKLefQgWU0GArUI dIVGoUnxD90+3UjY/8JgWJiPvj3vts0Q7sFKDmPTsqyTi2N9YMMCk8KCv8+Jlniz3PB8 k77tRbxmkDCf7wvZ/g5vdq0lTFPQZB8jckzHNdNkege67+vIpESUi7kIex1xVQ/AGAJ9 7aLg== X-Gm-Message-State: ALoCoQlzls2lPuMG1AvA7mWvCB9Rac5U0qol5CyPjzXNS/sEkTTOcOC9R7f6rMKB+ur+ZqBtIpCt MIME-Version: 1.0 X-Received: by 10.112.16.162 with SMTP id h2mr10598196lbd.89.1446929248996; Sat, 07 Nov 2015 12:47:28 -0800 (PST) Received: by 10.112.53.42 with HTTP; Sat, 7 Nov 2015 12:47:28 -0800 (PST) In-Reply-To: <8C966D9B-A46D-47EC-BD4B-20E2F9B42555@dilger.ca> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> <1446723580-3747-4-git-send-email-agruenba@redhat.com> <8C966D9B-A46D-47EC-BD4B-20E2F9B42555@dilger.ca> Date: Sat, 7 Nov 2015 21:47:28 +0100 Message-ID: Subject: Re: [PATCH v14 03/22] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v14 03/22] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags To: Andreas Dilger Cc: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lb0-f173.google.com[209.85.217.173] X-Barracuda-Start-Time: 1446929250 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24199 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Nov 6, 2015 at 10:26 PM, Andreas Dilger wrote: > On Nov 5, 2015, at 4:39 AM, Andreas Gruenbacher wrote: >> >> Normally, deleting a file requires MAY_WRITE access to the parent >> directory. With richacls, a file may be deleted with MAY_DELETE_CHILD access >> to the parent directory or with MAY_DELETE_SELF access to the file. >> >> To support that, pass the MAY_DELETE_CHILD mask flag to inode_permission() >> when checking for delete access inside a directory, and MAY_DELETE_SELF >> when checking for delete access to a file itelf. >> >> The MAY_DELETE_SELF permission overrides the sticky directory check. >> >> Signed-off-by: Andreas Gruenbacher >> Reviewed-by: J. Bruce Fields >> --- >> fs/namei.c | 21 ++++++++++++--------- >> include/linux/fs.h | 2 ++ >> 2 files changed, 14 insertions(+), 9 deletions(-) >> >> diff --git a/fs/namei.c b/fs/namei.c >> index 0259392..2eab19e 100644 >> --- a/fs/namei.c >> +++ b/fs/namei.c >> @@ -453,9 +453,9 @@ static int sb_permission(struct super_block *sb, struct inode *inode, int mask) >> * this, letting us set arbitrary permissions for filesystem access without >> * changing the "normal" UIDs which are used for other things. >> * >> - * MAY_WRITE must be set in @mask whenever MAY_APPEND, MAY_CREATE_FILE, or >> - * MAY_CREATE_DIR are set. That way, file systems that don't support these >> - * permissions will check for MAY_WRITE instead. >> + * MAY_WRITE must be set in @mask whenever MAY_APPEND, MAY_CREATE_FILE, >> + * MAY_CREATE_DIR, or MAY_DELETE_CHILD are set. That way, file systems that >> + * don't support these permissions will check for MAY_WRITE instead. >> */ >> int inode_permission(struct inode *inode, int mask) >> { >> @@ -2555,7 +2555,7 @@ static int may_delete(struct inode *dir, struct dentry *victim, >> bool isdir, bool replace) >> { >> struct inode *inode = d_backing_inode(victim); >> - int error, mask = MAY_WRITE | MAY_EXEC; >> + int error, mask = MAY_EXEC; >> >> if (d_is_negative(victim)) >> return -ENOENT; >> @@ -2565,15 +2565,18 @@ static int may_delete(struct inode *dir, struct dentry *victim, >> audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); >> >> if (replace) >> - mask |= isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; >> - error = inode_permission(dir, mask); >> + mask |= MAY_WRITE | (isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE); >> + error = inode_permission(dir, mask | MAY_WRITE | MAY_DELETE_CHILD); >> + if (!error && check_sticky(dir, inode)) >> + error = -EPERM; >> + if (error && IS_RICHACL(inode) && >> + inode_permission(inode, MAY_DELETE_SELF) == 0) >> + error = 0; > > This looks like a serious bug, as it is overriding other errors returned > from inode_permission() such as -EROFS from sb_permission() or even from > generic_permission->acl_permission_check(). Clearing the error returned > by an earlier check doesn't seem safe, only new errors should be added. See further below ... > The call to inode_permission(inode) is also duplicating the sb_permission() > check from inode_permission(dir), so at most should be __inode_permission(). This could be optimized, but that would make the code harder to read. I don't think it really matters: this only affects file with the MAY_DELETE_SELF permission, and sb_permissions is really cheap anyway. > It looks like this would be correct if you check MAY_DELETE_SELF together > with check_sticky(): > > if (!error && check_sticky(dir, inode) && > !__inode_permission(inode, MAY_DELETE_SELF)) > error = -EPERM; Nope, this version would deny users with MAY_DELETE_SELF access to a file and MAY_EXEC access to the directory the right to delete the file because @error would already be set then. You are right that the check for MAY_DELETE_SELF overrides too much here though; we need an additional inode_permission(dir, ...) check in there. I've pushed a fixed version here that I will do some more testing on before reposting: git://git.kernel.org/pub/scm/linux/kernel/git/agruen/linux-richacl.git richacl-wip > I ommitted the IS_RICHACL() check here, since that should probably be in > __inode_permission() when MAY_DELETE_SELF is passed? The IS_RICHACL() check is indeed done in inode_permission -> __inode_permission -> do_inode_permission -> generic_permission -> acl_permission_check. I've duplicated that check here to avoid slowing down may_delete in the common case where the filesystem doesn't support richacls. Thanks, Andreas From adilger@dilger.ca Sun Nov 8 02:04:49 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 29EA47F5A for ; Sun, 8 Nov 2015 02:04:49 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 03924304039 for ; Sun, 8 Nov 2015 00:04:48 -0800 (PST) X-ASG-Debug-ID: 1446969882-04cb6c296db22e0001-NocioJ Received: from mail-pa0-f54.google.com (mail-pa0-f54.google.com [209.85.220.54]) by cuda.sgi.com with ESMTP id CAf5jJcLU0aeA6Xk (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sun, 08 Nov 2015 00:04:42 -0800 (PST) X-Barracuda-Envelope-From: adilger@dilger.ca X-Barracuda-RBL-Trusted-Forwarder: 209.85.220.54 Received: by pacdm15 with SMTP id dm15so142099855pac.3 for ; Sun, 08 Nov 2015 00:04:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dilger_ca.20150623.gappssmtp.com; s=20150623; h=subject:mime-version:content-type:from:in-reply-to:date:cc :message-id:references:to; bh=zLTDpGH+5C23d8lO3JA42MIIm3xR9ISAemqGNnKJSYM=; b=qDKvGA1orzmfBH/HBlav8VuAMSu0uuu+GkxG1iDeLHk4/zoxJKNQrdosjHyXo82919 67hF9bQLhjbcfU/KyuLTDEYAsGmsRsnCax3wGN1eI8FRMjqy9I5tCG5/bR8AcGBoiNL0 c8L0qGGYCNzmNkD/kiKvEop//a5kw5w1PbFTAv72f07GKEgi1a5psIQ1EApc0PMxN8Ul /31hbfxodE16sfeuK358r2sFdJZFogp+XZ0JHeyEdW+L+XLqnl8lFLzXe4brK4weZ/rg PD5tAwye1KwOyA8m2U4S7uB+e2Kk/PgkbPoatvrLVd2ydZX5o4LDI0sOtsM1JU9HLHsu 1q5g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:mime-version:content-type:from :in-reply-to:date:cc:message-id:references:to; bh=zLTDpGH+5C23d8lO3JA42MIIm3xR9ISAemqGNnKJSYM=; b=dxYk+X5BMGOqAxHyyMpp1ITzrkxZwrdsS7FsKjNI0nguQjSaehft+6MRRrR5Sje1Yx giS5FEVQnW8BOVIj8EVxPWJjHqK4znk4E84gfgzK3XqCjVAOrg57r9irDEilq4f+0YtE izDoPSpTtuN3qrc9jCPKJwz005UyHcn/wPAn8G5GK9sYYuZT28JDeZMWId2nxD2DkltH QjAKKTxrsFLUTxQSXxdzvPJ5JD7UJkbcMKVDZG8Iv74ewM850bTSR0WK78OP3sxO4S6r +tnyLP9R4B+v+xfhCdLQiXxv17mc/0bu9y05qFRaIZKWQnteUWBQa4nqwqT6VqFfQoxy 8hIA== X-Gm-Message-State: ALoCoQlQYF6zEOEnO8+OTprOFHxavMIMwB+GAYHIHYNYKlXjAGneMHA3TbKnedtZLVbnA1yT1VyC X-Received: by 10.66.158.234 with SMTP id wx10mr30937148pab.72.1446969881841; Sun, 08 Nov 2015 00:04:41 -0800 (PST) Received: from cabot-wlan.adilger.int (S0106002191d9348b.cg.shawcable.net. [96.51.76.157]) by smtp.gmail.com with ESMTPSA id ia3sm9537736pbb.5.2015.11.08.00.04.39 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sun, 08 Nov 2015 00:04:40 -0800 (PST) Subject: Re: [PATCH v14 11/22] vfs: Cache base_acl objects in inodes X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v14 11/22] vfs: Cache base_acl objects in inodes Content-Type: multipart/signed; boundary="Apple-Mail=_65082315-236F-444B-A9A2-6BE991F8EF14"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446723580-3747-12-git-send-email-agruenba@redhat.com> Date: Sun, 8 Nov 2015 01:06:00 -0700 Cc: Alexander Viro , Theodore Ts'o , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Message-Id: References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> <1446723580-3747-12-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f54.google.com[209.85.220.54] X-Barracuda-Start-Time: 1446969882 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24211 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_65082315-236F-444B-A9A2-6BE991F8EF14 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Nov 5, 2015, at 4:39 AM, Andreas Gruenbacher = wrote: >=20 > POSIX ACLs and richacls are both objects allocated by kmalloc() with a > reference count which are freed by kfree_rcu(). An inode can either > cache an access and a default POSIX ACL, or a richacl (richacls do not > have default acls). To allow an inode to cache either of the two = kinds > of acls, introduce a new base_acl type and convert i_acl and > i_default_acl to that type. In most cases, the vfs then doesn't care = which > kind of acl an inode caches (if any). >=20 > Signed-off-by: Andreas Gruenbacher Reviewed-by: Andreas Dilger > --- > drivers/staging/lustre/lustre/llite/llite_lib.c | 2 +- > fs/f2fs/acl.c | 4 +-- > fs/inode.c | 4 +-- > fs/jffs2/acl.c | 10 ++++-- > fs/posix_acl.c | 41 = +++++++++++++------------ > fs/richacl_base.c | 4 +-- > include/linux/fs.h | 34 = ++++++++++++++++++-- > include/linux/posix_acl.h | 12 +++----- > include/linux/richacl.h | 9 +++--- > 9 files changed, 75 insertions(+), 45 deletions(-) >=20 > diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c = b/drivers/staging/lustre/lustre/llite/llite_lib.c > index b4ed6c8..46912c2 100644 > --- a/drivers/staging/lustre/lustre/llite/llite_lib.c > +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c > @@ -1118,7 +1118,7 @@ void ll_clear_inode(struct inode *inode) > } > #ifdef CONFIG_FS_POSIX_ACL > else if (lli->lli_posix_acl) { > - LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) =3D=3D= 1); > + LASSERT(base_acl_refcount(&lli->lli_posix_acl->a_base) = =3D=3D 1); > LASSERT(lli->lli_remote_perms =3D=3D NULL); > posix_acl_release(lli->lli_posix_acl); > lli->lli_posix_acl =3D NULL; > diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c > index c8f25f7..9646197 100644 > --- a/fs/f2fs/acl.c > +++ b/fs/f2fs/acl.c > @@ -270,7 +270,7 @@ static struct posix_acl *f2fs_acl_clone(const = struct posix_acl *acl, > sizeof(struct posix_acl_entry); > clone =3D kmemdup(acl, size, flags); > if (clone) > - atomic_set(&clone->a_refcount, 1); > + base_acl_init(&clone->a_base); > } > return clone; > } > @@ -282,7 +282,7 @@ static int f2fs_acl_create_masq(struct posix_acl = *acl, umode_t *mode_p) > umode_t mode =3D *mode_p; > int not_equiv =3D 0; >=20 > - /* assert(atomic_read(acl->a_refcount) =3D=3D 1); */ > + /* assert(base_acl_refcount(&acl->a_base) =3D=3D 1); */ >=20 > FOREACH_ACL_ENTRY(pa, acl, pe) { > switch(pa->e_tag) { > diff --git a/fs/inode.c b/fs/inode.c > index 78a17b8..5c46ae5 100644 > --- a/fs/inode.c > +++ b/fs/inode.c > @@ -233,9 +233,9 @@ void __destroy_inode(struct inode *inode) >=20 > #ifdef CONFIG_FS_POSIX_ACL > if (inode->i_acl && inode->i_acl !=3D ACL_NOT_CACHED) > - posix_acl_release(inode->i_acl); > + base_acl_put(inode->i_acl); > if (inode->i_default_acl && inode->i_default_acl !=3D = ACL_NOT_CACHED) > - posix_acl_release(inode->i_default_acl); > + base_acl_put(inode->i_default_acl); > #endif > this_cpu_dec(nr_inodes); > } > diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c > index 2f7a3c0..569cb1b 100644 > --- a/fs/jffs2/acl.c > +++ b/fs/jffs2/acl.c > @@ -294,13 +294,19 @@ int jffs2_init_acl_post(struct inode *inode) > int rc; >=20 > if (inode->i_default_acl) { > - rc =3D __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_DEFAULT, = inode->i_default_acl); > + struct posix_acl *default_acl =3D container_of( > + inode->i_default_acl, struct posix_acl, a_base); > + > + rc =3D __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_DEFAULT, = default_acl); > if (rc) > return rc; > } >=20 > if (inode->i_acl) { > - rc =3D __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_ACCESS, = inode->i_acl); > + struct posix_acl *acl =3D container_of( > + inode->i_acl, struct posix_acl, a_base); > + > + rc =3D __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_ACCESS, = acl); > if (rc) > return rc; > } > diff --git a/fs/posix_acl.c b/fs/posix_acl.c > index aacfb58..4573315 100644 > --- a/fs/posix_acl.c > +++ b/fs/posix_acl.c > @@ -21,7 +21,7 @@ > #include > #include >=20 > -static struct posix_acl **acl_by_type(struct inode *inode, int type) > +static struct base_acl **acl_by_type(struct inode *inode, int type) > { > switch (type) { > case ACL_TYPE_ACCESS: > @@ -35,63 +35,64 @@ static struct posix_acl **acl_by_type(struct inode = *inode, int type) >=20 > struct posix_acl *get_cached_acl(struct inode *inode, int type) > { > - struct posix_acl **p =3D acl_by_type(inode, type); > - struct posix_acl *acl =3D ACCESS_ONCE(*p); > + struct base_acl **p =3D acl_by_type(inode, type); > + struct base_acl *acl =3D ACCESS_ONCE(*p); > if (acl) { > spin_lock(&inode->i_lock); > acl =3D *p; > if (acl !=3D ACL_NOT_CACHED) > - acl =3D posix_acl_dup(acl); > + base_acl_get(acl); > spin_unlock(&inode->i_lock); > } > - return acl; > + return container_of(acl, struct posix_acl, a_base); > } > EXPORT_SYMBOL(get_cached_acl); >=20 > struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type) > { > - return rcu_dereference(*acl_by_type(inode, type)); > + struct base_acl *acl =3D rcu_dereference(*acl_by_type(inode, = type)); > + return container_of(acl, struct posix_acl, a_base); > } > EXPORT_SYMBOL(get_cached_acl_rcu); >=20 > void set_cached_acl(struct inode *inode, int type, struct posix_acl = *acl) > { > - struct posix_acl **p =3D acl_by_type(inode, type); > - struct posix_acl *old; > + struct base_acl **p =3D acl_by_type(inode, type); > + struct base_acl *old; > spin_lock(&inode->i_lock); > old =3D *p; > - rcu_assign_pointer(*p, posix_acl_dup(acl)); > + rcu_assign_pointer(*p, &posix_acl_dup(acl)->a_base); > spin_unlock(&inode->i_lock); > if (old !=3D ACL_NOT_CACHED) > - posix_acl_release(old); > + base_acl_put(old); > } > EXPORT_SYMBOL(set_cached_acl); >=20 > void forget_cached_acl(struct inode *inode, int type) > { > - struct posix_acl **p =3D acl_by_type(inode, type); > - struct posix_acl *old; > + struct base_acl **p =3D acl_by_type(inode, type); > + struct base_acl *old; > spin_lock(&inode->i_lock); > old =3D *p; > *p =3D ACL_NOT_CACHED; > spin_unlock(&inode->i_lock); > if (old !=3D ACL_NOT_CACHED) > - posix_acl_release(old); > + base_acl_put(old); > } > EXPORT_SYMBOL(forget_cached_acl); >=20 > void forget_all_cached_acls(struct inode *inode) > { > - struct posix_acl *old_access, *old_default; > + struct base_acl *old_access, *old_default; > spin_lock(&inode->i_lock); > old_access =3D inode->i_acl; > old_default =3D inode->i_default_acl; > inode->i_acl =3D inode->i_default_acl =3D ACL_NOT_CACHED; > spin_unlock(&inode->i_lock); > if (old_access !=3D ACL_NOT_CACHED) > - posix_acl_release(old_access); > + base_acl_put(old_access); > if (old_default !=3D ACL_NOT_CACHED) > - posix_acl_release(old_default); > + base_acl_put(old_default); > } > EXPORT_SYMBOL(forget_all_cached_acls); >=20 > @@ -128,7 +129,7 @@ EXPORT_SYMBOL(get_acl); > void > posix_acl_init(struct posix_acl *acl, int count) > { > - atomic_set(&acl->a_refcount, 1); > + base_acl_init(&acl->a_base); > acl->a_count =3D count; > } > EXPORT_SYMBOL(posix_acl_init); > @@ -161,7 +162,7 @@ posix_acl_clone(const struct posix_acl *acl, gfp_t = flags) > sizeof(struct posix_acl_entry); > clone =3D kmemdup(acl, size, flags); > if (clone) > - atomic_set(&clone->a_refcount, 1); > + base_acl_init(&clone->a_base); > } > return clone; > } > @@ -383,7 +384,7 @@ static int posix_acl_create_masq(struct posix_acl = *acl, umode_t *mode_p) > umode_t mode =3D *mode_p; > int not_equiv =3D 0; >=20 > - /* assert(atomic_read(acl->a_refcount) =3D=3D 1); */ > + /* assert(base_acl_refcount(&acl->a_base) =3D=3D 1); */ >=20 > FOREACH_ACL_ENTRY(pa, acl, pe) { > switch(pa->e_tag) { > @@ -438,7 +439,7 @@ static int __posix_acl_chmod_masq(struct posix_acl = *acl, umode_t mode) > struct posix_acl_entry *group_obj =3D NULL, *mask_obj =3D NULL; > struct posix_acl_entry *pa, *pe; >=20 > - /* assert(atomic_read(acl->a_refcount) =3D=3D 1); */ > + /* assert(base_acl_refcount(&acl->a_base) =3D=3D 1); */ >=20 > FOREACH_ACL_ENTRY(pa, acl, pe) { > switch(pa->e_tag) { > diff --git a/fs/richacl_base.c b/fs/richacl_base.c > index 69b806c..5826842 100644 > --- a/fs/richacl_base.c > +++ b/fs/richacl_base.c > @@ -33,7 +33,7 @@ richacl_alloc(int count, gfp_t gfp) > struct richacl *acl =3D kzalloc(size, gfp); >=20 > if (acl) { > - atomic_set(&acl->a_refcount, 1); > + base_acl_init(&acl->a_base); > acl->a_count =3D count; > } > return acl; > @@ -52,7 +52,7 @@ richacl_clone(const struct richacl *acl, gfp_t gfp) >=20 > if (dup) { > memcpy(dup, acl, size); > - atomic_set(&dup->a_refcount, 1); > + base_acl_init(&dup->a_base); > } > return dup; > } > diff --git a/include/linux/fs.h b/include/linux/fs.h > index ba91a89..2fd840e 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -576,6 +576,12 @@ static inline void mapping_allow_writable(struct = address_space *mapping) > #define i_size_ordered_init(inode) do { } while (0) > #endif >=20 > +struct base_acl { > + union { > + atomic_t ba_refcount; > + struct rcu_head ba_rcu; > + }; > +}; > struct posix_acl; > #define ACL_NOT_CACHED ((void *)(-1)) >=20 > @@ -595,9 +601,9 @@ struct inode { > kgid_t i_gid; > unsigned int i_flags; >=20 > -#ifdef CONFIG_FS_POSIX_ACL > - struct posix_acl *i_acl; > - struct posix_acl *i_default_acl; > +#if defined(CONFIG_FS_POSIX_ACL) > + struct base_acl *i_acl; > + struct base_acl *i_default_acl; > #endif >=20 > const struct inode_operations *i_op; > @@ -3059,4 +3065,26 @@ static inline bool dir_relax(struct inode = *inode) >=20 > extern bool path_noexec(const struct path *path); >=20 > +static inline void base_acl_get(struct base_acl *acl) > +{ > + if (acl) > + atomic_inc(&acl->ba_refcount); > +} > + > +static inline void base_acl_put(struct base_acl *acl) > +{ > + if (acl && atomic_dec_and_test(&acl->ba_refcount)) > + kfree_rcu(acl, ba_rcu); > +} > + > +static inline void base_acl_init(struct base_acl *acl) > +{ > + atomic_set(&acl->ba_refcount, 1); > +} > + > +static inline int base_acl_refcount(struct base_acl *acl) > +{ > + return atomic_read(&acl->ba_refcount); > +} > + > #endif /* _LINUX_FS_H */ > diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h > index 5b5a80c..cef5428 100644 > --- a/include/linux/posix_acl.h > +++ b/include/linux/posix_acl.h > @@ -43,10 +43,7 @@ struct posix_acl_entry { > }; >=20 > struct posix_acl { > - union { > - atomic_t a_refcount; > - struct rcu_head a_rcu; > - }; > + struct base_acl a_base; /* must be first, see = posix_acl_release() */ > unsigned int a_count; > struct posix_acl_entry a_entries[0]; > }; > @@ -61,8 +58,7 @@ struct posix_acl { > static inline struct posix_acl * > posix_acl_dup(struct posix_acl *acl) > { > - if (acl) > - atomic_inc(&acl->a_refcount); > + base_acl_get(&acl->a_base); > return acl; > } >=20 > @@ -72,8 +68,8 @@ posix_acl_dup(struct posix_acl *acl) > static inline void > posix_acl_release(struct posix_acl *acl) > { > - if (acl && atomic_dec_and_test(&acl->a_refcount)) > - kfree_rcu(acl, a_rcu); > + BUILD_BUG_ON(offsetof(struct posix_acl, a_base) !=3D 0); > + base_acl_put(&acl->a_base); > } >=20 >=20 > diff --git a/include/linux/richacl.h b/include/linux/richacl.h > index 1d9f5f7..7628fad 100644 > --- a/include/linux/richacl.h > +++ b/include/linux/richacl.h > @@ -31,7 +31,7 @@ struct richace { > }; >=20 > struct richacl { > - atomic_t a_refcount; > + struct base_acl a_base; /* must be first, see richacl_put() */ > unsigned int a_owner_mask; > unsigned int a_group_mask; > unsigned int a_other_mask; > @@ -56,8 +56,7 @@ struct richacl { > static inline struct richacl * > richacl_get(struct richacl *acl) > { > - if (acl) > - atomic_inc(&acl->a_refcount); > + base_acl_get(&acl->a_base); > return acl; > } >=20 > @@ -67,8 +66,8 @@ richacl_get(struct richacl *acl) > static inline void > richacl_put(struct richacl *acl) > { > - if (acl && atomic_dec_and_test(&acl->a_refcount)) > - kfree(acl); > + BUILD_BUG_ON(offsetof(struct richacl, a_base) !=3D 0); > + base_acl_put(&acl->a_base); > } >=20 > /** > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_65082315-236F-444B-A9A2-6BE991F8EF14 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; 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[96.51.76.157]) by smtp.gmail.com with ESMTPSA id bs3sm9481446pbd.89.2015.11.08.00.11.26 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 08 Nov 2015 00:11:27 -0800 (PST) Subject: Re: [PATCH v14 22/22] ext4: Add richacl feature flag X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v14 22/22] ext4: Add richacl feature flag Content-Type: multipart/signed; boundary="Apple-Mail=_0BCACE90-E476-493B-B86E-BCA15FCFDC21"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446723580-3747-23-git-send-email-agruenba@redhat.com> Date: Sun, 8 Nov 2015 01:12:48 -0700 Cc: Alexander Viro , Theodore Ts'o , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API , "Aneesh Kumar K.V" Message-Id: References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> <1446723580-3747-23-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f45.google.com[209.85.220.45] X-Barracuda-Start-Time: 1446970289 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24211 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_0BCACE90-E476-493B-B86E-BCA15FCFDC21 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Nov 5, 2015, at 4:39 AM, Andreas Gruenbacher = wrote: >=20 > From: "Aneesh Kumar K.V" >=20 > This feature flag selects richacl instead of POSIX ACL support on the > filesystem. When this feature is off, the "acl" and "noacl" mount = options > control whether POSIX ACLs are enabled. When it is on, richacls are > automatically enabled and using the "noacl" mount option leads to an = error. >=20 > Signed-off-by: Aneesh Kumar K.V > Signed-off-by: Andreas Gruenbacher Reviewed-by: Andreas Dilger > --- > fs/ext4/ext4.h | 6 ++++-- > fs/ext4/super.c | 49 ++++++++++++++++++++++++++++++++++++++++--------- > 2 files changed, 44 insertions(+), 11 deletions(-) >=20 > diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h > index fd1f28b..b97a3b1 100644 > --- a/fs/ext4/ext4.h > +++ b/fs/ext4/ext4.h > @@ -991,7 +991,7 @@ struct ext4_inode_info { > #define EXT4_MOUNT_UPDATE_JOURNAL 0x01000 /* Update the journal = format */ > #define EXT4_MOUNT_NO_UID32 0x02000 /* Disable 32-bit UIDs = */ > #define EXT4_MOUNT_XATTR_USER 0x04000 /* Extended user = attributes */ > -#define EXT4_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control = Lists */ > +#define EXT4_MOUNT_ACL 0x08000 /* Access = Control Lists */ > #define EXT4_MOUNT_NO_AUTO_DA_ALLOC 0x10000 /* No auto delalloc = mapping */ > #define EXT4_MOUNT_BARRIER 0x20000 /* Use block barriers */ > #define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set = */ > @@ -1582,6 +1582,7 @@ static inline int ext4_encrypted_inode(struct = inode *inode) > #define EXT4_FEATURE_INCOMPAT_LARGEDIR 0x4000 /* >2GB = or 3-lvl htree */ > #define EXT4_FEATURE_INCOMPAT_INLINE_DATA 0x8000 /* data in inode = */ > #define EXT4_FEATURE_INCOMPAT_ENCRYPT 0x10000 > +#define EXT4_FEATURE_INCOMPAT_RICHACL 0x20000 >=20 > #define EXT2_FEATURE_COMPAT_SUPP EXT4_FEATURE_COMPAT_EXT_ATTR > #define EXT2_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| = \ > @@ -1607,7 +1608,8 @@ static inline int ext4_encrypted_inode(struct = inode *inode) > EXT4_FEATURE_INCOMPAT_FLEX_BG| = \ > EXT4_FEATURE_INCOMPAT_MMP | \ > = EXT4_FEATURE_INCOMPAT_INLINE_DATA | \ > - EXT4_FEATURE_INCOMPAT_ENCRYPT) > + EXT4_FEATURE_INCOMPAT_ENCRYPT | = \ > + EXT4_FEATURE_INCOMPAT_RICHACL) > #define EXT4_FEATURE_RO_COMPAT_SUPP = (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \ > = EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \ > = EXT4_FEATURE_RO_COMPAT_GDT_CSUM| \ > diff --git a/fs/ext4/super.c b/fs/ext4/super.c > index a63c7b0..7457ea8 100644 > --- a/fs/ext4/super.c > +++ b/fs/ext4/super.c > @@ -1270,6 +1270,28 @@ static ext4_fsblk_t get_sb_block(void **data) > return sb_block; > } >=20 > +static int enable_acl(struct super_block *sb) > +{ > + sb->s_flags &=3D ~(MS_POSIXACL | MS_RICHACL); > + if (test_opt(sb, ACL)) { > + if (EXT4_HAS_INCOMPAT_FEATURE(sb, > + = EXT4_FEATURE_INCOMPAT_RICHACL)) { > +#ifdef CONFIG_EXT4_FS_RICHACL > + sb->s_flags |=3D MS_RICHACL; > +#else > + return -EOPNOTSUPP; > +#endif > + } else { > +#ifdef CONFIG_EXT4_FS_POSIX_ACL > + sb->s_flags |=3D MS_POSIXACL; > +#else > + return -EOPNOTSUPP; > +#endif > + } > + } > + return 0; > +} > + > #define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3)) > static char deprecated_msg[] =3D "Mount option \"%s\" will be removed = by %s\n" > "Contact linux-ext4@vger.kernel.org if you think we should keep = it.\n"; > @@ -1416,9 +1438,9 @@ static const struct mount_opts { > MOPT_NO_EXT2 | MOPT_DATAJ}, > {Opt_user_xattr, EXT4_MOUNT_XATTR_USER, MOPT_SET}, > {Opt_nouser_xattr, EXT4_MOUNT_XATTR_USER, MOPT_CLEAR}, > -#ifdef CONFIG_EXT4_FS_POSIX_ACL > - {Opt_acl, EXT4_MOUNT_POSIX_ACL, MOPT_SET}, > - {Opt_noacl, EXT4_MOUNT_POSIX_ACL, MOPT_CLEAR}, > +#if defined(CONFIG_EXT4_FS_POSIX_ACL) || = defined(CONFIG_EXT4_FS_RICHACL) > + {Opt_acl, EXT4_MOUNT_ACL, MOPT_SET}, > + {Opt_noacl, EXT4_MOUNT_ACL, MOPT_CLEAR}, > #else > {Opt_acl, 0, MOPT_NOSUPPORT}, > {Opt_noacl, 0, MOPT_NOSUPPORT}, > @@ -1466,6 +1488,13 @@ static int handle_mount_opt(struct super_block = *sb, char *opt, int token, > #endif > switch (token) { > case Opt_noacl: > +#ifdef CONFIG_EXT4_FS_RICHACL > + if (EXT4_HAS_INCOMPAT_FEATURE(sb, = EXT4_FEATURE_INCOMPAT_RICHACL)) { > + ext4_msg(sb, KERN_ERR, "Mount option \"%s\" incompatible = " > + "with richacl feature", opt); > + return -1; > + } > +#endif > case Opt_nouser_xattr: > ext4_msg(sb, KERN_WARNING, deprecated_msg, opt, "3.5"); > break; > @@ -3576,8 +3605,8 @@ static int ext4_fill_super(struct super_block = *sb, void *data, int silent) > set_opt(sb, NO_UID32); > /* xattr user namespace & acls are now defaulted on */ > set_opt(sb, XATTR_USER); > -#ifdef CONFIG_EXT4_FS_POSIX_ACL > - set_opt(sb, POSIX_ACL); > +#if defined(CONFIG_EXT4_FS_POSIX_ACL) || = defined(CONFIG_EXT4_FS_RICHACL) > + set_opt(sb, ACL); > #endif > /* don't forget to enable journal_csum when metadata_csum is = enabled. */ > if (ext4_has_metadata_csum(sb)) > @@ -3660,8 +3689,9 @@ static int ext4_fill_super(struct super_block = *sb, void *data, int silent) > sb->s_iflags |=3D SB_I_CGROUPWB; > } >=20 > - sb->s_flags =3D (sb->s_flags & ~MS_POSIXACL) | > - (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0); > + err =3D enable_acl(sb); > + if (err) > + goto failed_mount; >=20 > if (le32_to_cpu(es->s_rev_level) =3D=3D EXT4_GOOD_OLD_REV && > (EXT4_HAS_COMPAT_FEATURE(sb, ~0U) || > @@ -4981,8 +5011,9 @@ static int ext4_remount(struct super_block *sb, = int *flags, char *data) > if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED) > ext4_abort(sb, "Abort forced by user"); >=20 > - sb->s_flags =3D (sb->s_flags & ~MS_POSIXACL) | > - (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0); > + err =3D enable_acl(sb); > + if (err) > + goto restore_opts; >=20 > es =3D sbi->s_es; >=20 > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_0BCACE90-E476-493B-B86E-BCA15FCFDC21 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVj8EAXKl2rkXzB/gAQgbOxAAgr/EeWdcnvF/SjAMimIladAt5mlkUjW9 UTtWj5C3xO7NTPmH28K3HG42mKT0WsP+ltiCDeB9VFhodLaRkykv4LhrWY0bbnZV tgmMthacKyWL+CUES9Ol1OzE2flm8KrSgSXWslTTbUsBN0dHuMPc1CJNrcs3MP0C wqaEZEzUdOBxkhZJXJco3oBMMfuoaQRi5XbcgF0ItXLY3w7z+3kXkGMaYslMW/FN NO6O+ycxbRTTQgWBI61vGFV8dOC6lGZE+1j7+ZrESmhJDGfY+dLw3IALwEMQSPCa ZT/6fX4f5fla78+hFLUM1Vkjxa8qPSjw/4en8zbNV+Kkv9j3fTRyGTjbT5e5UkUm o5hnBWKO5eESGRdTi9Nji8I06iy/1DhnazQnROmGhUrNBTUjT6OWuxWGIJ0l8iJR mVS98xlZbPZ8VCWpRBW0TwMkcs7Odo0TYry94vMjbvhBY/DrqiGFx0Rk7Pv7leHt iKnXMuEKGTZFBmApFDaTYlJYhc6eHxC1grEfUujriw0z9r6CLVr5tp+oggPP7wwv 4APOthWXoDIQV6kuujVlLaoQPP0pct/Yt6LCFIFqEUgsTfQlyQBguUnqefkH5nzS fWWdIs69SI8fcVPDg9KFZ7HdTvMWcutN1ijyhvZS3bEAFp6SgmI5+F55A5fTxTjH jpvgOQxlT9Y= =0MG+ -----END PGP SIGNATURE----- --Apple-Mail=_0BCACE90-E476-493B-B86E-BCA15FCFDC21-- From adilger@dilger.ca Sun Nov 8 02:17:37 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D1B927F6D for ; Sun, 8 Nov 2015 02:17:37 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id BF412304039 for ; Sun, 8 Nov 2015 00:17:37 -0800 (PST) X-ASG-Debug-ID: 1446970655-04cbb02424b5de0001-NocioJ Received: from mail-pa0-f52.google.com (mail-pa0-f52.google.com [209.85.220.52]) by cuda.sgi.com with ESMTP id 7O5ZixC1qv49svhA (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sun, 08 Nov 2015 00:17:35 -0800 (PST) X-Barracuda-Envelope-From: adilger@dilger.ca X-Barracuda-RBL-Trusted-Forwarder: 209.85.220.52 Received: by pasz6 with SMTP id z6so170931539pas.2 for ; Sun, 08 Nov 2015 00:17:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dilger_ca.20150623.gappssmtp.com; s=20150623; h=subject:mime-version:content-type:from:in-reply-to:date:cc :message-id:references:to; bh=D/ev0JQ+xUSeRQEvsbdrqVitl9+5FXHH58Sgf27tYWQ=; b=hsZdnz4yRDAi+P2pjkO2j2RF73lbIVRnjW9sUzCJrZmDlI5ktd+/oh4KQTBWFn83e5 fR0FbZ/PLTYAWyr6nu4WwG6G+Cy2WlxOayx+bZKp9WNj2rC6Wz4GxXmv2Fh+6UKkULR1 clQ7dUZGXodKpKyluhnjol9lVsmr6JlLqBK55MzDjOJlzwduqpMaXdzLaQHPUXH00DUt pjNDsjON6Pcs0TU25FV2aB5upAuQSiXBrbw8kGtbBnCipGpge7yeHCFDSH5WrLZMepJc gOfGLZGCbLjlMu4eQZrm5kIr0mpE3D7RfoCI0F/hofLmJuS4Uu/mnKagT94M4pqPnUow P4yQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:mime-version:content-type:from :in-reply-to:date:cc:message-id:references:to; bh=D/ev0JQ+xUSeRQEvsbdrqVitl9+5FXHH58Sgf27tYWQ=; b=LKjfrx84I4KocM/huj4c9hQK5WSqkMAnm/o27/HqBNf14g+Mo1TurO5DKTzW39GrEg xsGt2fnlkjCF/FmyDFXWMn+DOnd8R93qN9CwCJfw03Zl2bzqZEj8mKZlo9Qf+wtJQ7A6 G2tfWfjYl/Un2LxHdSps5VyHXmQgRyeyNsbTAziwscZysNSoCdtgF19QKT+bmcs2wtvS Lxfbrg/7OwSwBW66hhTE0pnoWbeZ3ZRWWXqIWHno9CXw7zQFjvbJiAAw5aT1POS94AlX mRqvwoyH4ijdVlG2t+Vg5dc0/Jtj9xNFn/Y8TdEI1/P2LPPq/u1tjJe4A/FxHG0j/sAY WXYg== X-Gm-Message-State: ALoCoQl8GmUMFjJ3XkOctNzeB2vheBLbev6EYDEg3cc4KNra5CEH9J30pLEil3Esdkpmh12oz17u X-Received: by 10.68.69.39 with SMTP id b7mr2694359pbu.48.1446970655151; Sun, 08 Nov 2015 00:17:35 -0800 (PST) Received: from cabot-wlan.adilger.int (S0106002191d9348b.cg.shawcable.net. [96.51.76.157]) by smtp.gmail.com with ESMTPSA id cn4sm9504986pbc.94.2015.11.08.00.17.33 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sun, 08 Nov 2015 00:17:34 -0800 (PST) Subject: Re: [PATCH v14 02/22] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags X-Barracuda-Apparent-Source-IP: 96.51.76.157 X-Barracuda-BBL-IP: 96.51.76.157 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v14 02/22] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Content-Type: multipart/signed; boundary="Apple-Mail=_28C5425C-AF5E-40F9-B6EB-6C6221836E29"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: <1446918268-858-1-git-send-email-agruenba@redhat.com> Date: Sun, 8 Nov 2015 01:18:55 -0700 Cc: Alexander Viro , Theodore Ts'o , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Message-Id: <0B5A4519-9506-41AA-9AA9-A67EA070E6F8@dilger.ca> References: <1446723580-3747-1-git-send-email-agruenba@redhat.com> <1446723580-3747-3-git-send-email-agruenba@redhat.com> <1446918268-858-1-git-send-email-agruenba@redhat.com> To: Andreas Gruenbacher X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f52.google.com[209.85.220.52] X-Barracuda-Start-Time: 1446970655 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24211 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_28C5425C-AF5E-40F9-B6EB-6C6221836E29 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Nov 7, 2015, at 10:44 AM, Andreas Gruenbacher = wrote: >=20 > On Fri, Nov 6, 2015 at 9:58 PM, Andreas Dilger = wrote: >> I thought you proposed adding an enum for these parameters, and = possibly >> making them a single parameter flag, to make the code in the caller = more >> readable. >=20 > No, the result would just be different but not any better; vfs_rename = would > become messy. I've played with this patch some more, and I find the = approach > below which splits may_delete into may_delete and may_replace much = better. > What do you think? This is definitely better than the previous patch. You can add: Reviewed-by: Andreas Dilger Cheers, Andreas > ---------- 8< ---------- >=20 > Richacls distinguish between creating non-directories and directories. = To > support that, add an isdir parameter to may_create(). When checking > inode_permission() for create permission, pass in an additional > MAY_CREATE_FILE or MAY_CREATE_DIR mask flag. >=20 > Add may_replace() to allow checking for delete and create access when > replacing an existing file in vfs_rename(). >=20 > Signed-off-by: Andreas Gruenbacher > Reviewed-by: J. Bruce Fields > --- > fs/namei.c | 49 = +++++++++++++++++++++++++++++++++---------------- > include/linux/fs.h | 2 ++ > 2 files changed, 35 insertions(+), 16 deletions(-) >=20 > diff --git a/fs/namei.c b/fs/namei.c > index 224ecf1..4e5dc2f 100644 > --- a/fs/namei.c > +++ b/fs/namei.c > @@ -453,7 +453,9 @@ static int sb_permission(struct super_block *sb, = struct inode *inode, int mask) > * this, letting us set arbitrary permissions for filesystem access = without > * changing the "normal" UIDs which are used for other things. > * > - * When checking for MAY_APPEND, MAY_WRITE must also be set in @mask. > + * MAY_WRITE must be set in @mask whenever MAY_APPEND, = MAY_CREATE_FILE, or > + * MAY_CREATE_DIR are set. That way, file systems that don't support = these > + * permissions will check for MAY_WRITE instead. > */ > int inode_permission(struct inode *inode, int mask) > { > @@ -2549,7 +2551,8 @@ EXPORT_SYMBOL(__check_sticky); > * 10. We don't allow removal of NFS sillyrenamed files; it's handled = by > * nfs_async_unlink(). > */ > -static int may_delete(struct inode *dir, struct dentry *victim, bool = isdir) > +static int may_delete_replace(struct inode *dir, struct dentry = *victim, > + bool isdir, int mask) > { > struct inode *inode =3D d_backing_inode(victim); > int error; > @@ -2561,7 +2564,7 @@ static int may_delete(struct inode *dir, struct = dentry *victim, bool isdir) > BUG_ON(victim->d_parent->d_inode !=3D dir); > audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); >=20 > - error =3D inode_permission(dir, MAY_WRITE | MAY_EXEC); > + error =3D inode_permission(dir, mask | MAY_WRITE | MAY_EXEC); > if (error) > return error; > if (IS_APPEND(dir)) > @@ -2584,6 +2587,18 @@ static int may_delete(struct inode *dir, struct = dentry *victim, bool isdir) > return 0; > } >=20 > +static int may_delete(struct inode *dir, struct dentry *victim, bool = isdir) > +{ > + return may_delete_replace(dir, victim, isdir, 0); > +} > + > +static int may_replace(struct inode *dir, struct dentry *victim, bool = isdir) > +{ > + int mask =3D isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; > + > + return may_delete_replace(dir, victim, isdir, mask); > +} > + > /* Check whether we can create an object with dentry child in = directory > * dir. > * 1. We can't do it if child already exists (open has special = treatment for > @@ -2592,14 +2607,16 @@ static int may_delete(struct inode *dir, = struct dentry *victim, bool isdir) > * 3. We should have write and exec permissions on dir > * 4. We can't do it if dir is immutable (done in permission()) > */ > -static inline int may_create(struct inode *dir, struct dentry *child) > +static inline int may_create(struct inode *dir, struct dentry *child, = bool isdir) > { > + int mask =3D isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; > + > audit_inode_child(dir, child, AUDIT_TYPE_CHILD_CREATE); > if (child->d_inode) > return -EEXIST; > if (IS_DEADDIR(dir)) > return -ENOENT; > - return inode_permission(dir, MAY_WRITE | MAY_EXEC); > + return inode_permission(dir, MAY_WRITE | MAY_EXEC | mask); > } >=20 > /* > @@ -2649,7 +2666,7 @@ EXPORT_SYMBOL(unlock_rename); > int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, > bool want_excl) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, false); > if (error) > return error; >=20 > @@ -3494,7 +3511,7 @@ EXPORT_SYMBOL(user_path_create); >=20 > int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, = dev_t dev) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, false); >=20 > if (error) > return error; > @@ -3586,7 +3603,7 @@ SYSCALL_DEFINE3(mknod, const char __user *, = filename, umode_t, mode, unsigned, d >=20 > int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, true); > unsigned max_links =3D dir->i_sb->s_max_links; >=20 > if (error) > @@ -3667,7 +3684,7 @@ EXPORT_SYMBOL(dentry_unhash); >=20 > int vfs_rmdir(struct inode *dir, struct dentry *dentry) > { > - int error =3D may_delete(dir, dentry, 1); > + int error =3D may_delete(dir, dentry, true); >=20 > if (error) > return error; > @@ -3789,7 +3806,7 @@ SYSCALL_DEFINE1(rmdir, const char __user *, = pathname) > int vfs_unlink(struct inode *dir, struct dentry *dentry, struct inode = **delegated_inode) > { > struct inode *target =3D dentry->d_inode; > - int error =3D may_delete(dir, dentry, 0); > + int error =3D may_delete(dir, dentry, false); >=20 > if (error) > return error; > @@ -3923,7 +3940,7 @@ SYSCALL_DEFINE1(unlink, const char __user *, = pathname) >=20 > int vfs_symlink(struct inode *dir, struct dentry *dentry, const char = *oldname) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, false); >=20 > if (error) > return error; > @@ -4006,7 +4023,7 @@ int vfs_link(struct dentry *old_dentry, struct = inode *dir, struct dentry *new_de > if (!inode) > return -ENOENT; >=20 > - error =3D may_create(dir, new_dentry); > + error =3D may_create(dir, new_dentry, false); > if (error) > return error; >=20 > @@ -4199,14 +4216,14 @@ int vfs_rename(struct inode *old_dir, struct = dentry *old_dentry, > return error; >=20 > if (!target) { > - error =3D may_create(new_dir, new_dentry); > + error =3D may_create(new_dir, new_dentry, is_dir); > } else { > new_is_dir =3D d_is_dir(new_dentry); >=20 > if (!(flags & RENAME_EXCHANGE)) > - error =3D may_delete(new_dir, new_dentry, = is_dir); > + error =3D may_replace(new_dir, new_dentry, = is_dir); > else > - error =3D may_delete(new_dir, new_dentry, = new_is_dir); > + error =3D may_replace(new_dir, new_dentry, = new_is_dir); > } > if (error) > return error; > @@ -4469,7 +4486,7 @@ SYSCALL_DEFINE2(rename, const char __user *, = oldname, const char __user *, newna >=20 > int vfs_whiteout(struct inode *dir, struct dentry *dentry) > { > - int error =3D may_create(dir, dentry); > + int error =3D may_create(dir, dentry, false); > if (error) > return error; >=20 > diff --git a/include/linux/fs.h b/include/linux/fs.h > index 4efa435..d6e2330 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -82,6 +82,8 @@ typedef void (dax_iodone_t)(struct buffer_head = *bh_map, int uptodate); > #define MAY_CHDIR 0x00000040 > /* called from RCU mode, don't block */ > #define MAY_NOT_BLOCK 0x00000080 > +#define MAY_CREATE_FILE 0x00000100 > +#define MAY_CREATE_DIR 0x00000200 >=20 > /* > * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must = correspond > -- > 2.5.0 >=20 Cheers, Andreas --Apple-Mail=_28C5425C-AF5E-40F9-B6EB-6C6221836E29 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVj8Fb3Kl2rkXzB/gAQjlFw//aWzy9SPFugHLc3t+sSL41Y1t+7aX4X8N dd6d5FXGYH1PL+H1Z0iic/7Cmartf5YyNuILYboa89rUAEU7drzG4AkzLQ0TZ8OO xac09BSBQ1XXO9SUB/ph4WvXwwSZRYGISqFi6+GZ4W5MIn/cKkB1zyFgwAwmWn6Z v8QoR9t/Tipy0LjCdyMPfQx6hBYVaix3oUP5BNQvKcjkjzaPYig6QFcnXjUL6CTD DhnQV8adxJLaWQfbt5IFg3pLABtGqnrKfqEDPPyD8waiu6Qt8amRXz01bKHuOgBv VFOjgG8NBFJsFWFVsmmkSijeQNn8AzxQ8MNQAjdZgbzVIkFYVPGf/ZJxOhgt5dKb ocNJsfF2Lrwksa729XLD6GAIIjRtk+HHGE+L5K/HQz0uv1WxUb9/AVSrusmsgyYB tDbaiQENZm0V9pvxb0SM+jqI0lo93P9gl0ie8XcxRGQrMGxx9V4tm6aqhD8cQhsO zDAaN90AWoTQme/ZkeqH3H2xePtNvXaCatMA9dlKvJkpL02vuxEC97BP5oVkLxHF 5n1mb6s9Pt6a6g091sZET5Mn7sqNDuRsCub5iOIlJyK69jXPPah9x5HnfUbNurP6 EhbUhSqw/zFBj9JbLxyMSa30bBFIpLApzukXgSbxlpd1Lcs6h1a7zqJ+qS/6JEuc fDrfsrLN9zM= =YAtC -----END PGP SIGNATURE----- --Apple-Mail=_28C5425C-AF5E-40F9-B6EB-6C6221836E29-- From BATV+e6d75f8cb5da29cb3d45+4459+infradead.org+hch@bombadil.srs.infradead.org Sun Nov 8 10:49:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8ECBF7F50 for ; Sun, 8 Nov 2015 10:49:47 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6BF24304032 for ; Sun, 8 Nov 2015 08:49:46 -0800 (PST) X-ASG-Debug-ID: 1447001383-04cb6c296dba950001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id K03yLopBaX7ss2FI (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sun, 08 Nov 2015 08:49:43 -0800 (PST) X-Barracuda-Envelope-From: BATV+e6d75f8cb5da29cb3d45+4459+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZvT9x-0007l3-T7; Sun, 08 Nov 2015 16:49:41 +0000 Date: Sun, 8 Nov 2015 08:49:41 -0800 From: Christoph Hellwig To: David Madore Cc: Linux Kernel mailing-list , xfs@oss.sgi.com Subject: Re: XFS freeze (xfsaild blocked) with 4.2.5 (also 4.3) Message-ID: <20151108164941.GA26354@infradead.org> X-ASG-Orig-Subj: Re: XFS freeze (xfsaild blocked) with 4.2.5 (also 4.3) References: <20151108114917.GA5620@achernar.madore.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151108114917.GA5620@achernar.madore.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447001383 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.60 X-Barracuda-Spam-Status: No, SCORE=2.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA717, BSF_SC7_SA_HREF_FROM_MISMATCH_TEXT_URIx1_HL, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24220 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.00 BSF_SC0_SA717 Custom Rule BSF_SC0_SA717 2.50 BSF_SC7_SA_HREF_FROM_MISMATCH_TEXT_URIx1_HL Custom Rule HREF_FROM_MISMATCH_TEXT_URIx1_HL Hi David, can you try the patch at: http://article.gmane.org/gmane.comp.file-systems.xfs.general/70984 The symptoms sound surprisingly similar. From david@fromorbit.com Sun Nov 8 15:16:57 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D924B7F51 for ; Sun, 8 Nov 2015 15:16:57 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id CBD21304039 for ; Sun, 8 Nov 2015 13:16:54 -0800 (PST) X-ASG-Debug-ID: 1447017410-04cbb02424c3c00001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id 24lbLq8HFyLutt8h for ; Sun, 08 Nov 2015 13:16:51 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BcCADxuj9WPGfGLHleKAECgxCBQoZcpFEGizKFLIQJhgoEAgKBG00BAQEBAQEHAQEBAUE/hDUBAQEDATocIwULCAMOCgklDwUlAwcaE4gmB79rASwZhXSFRYk5AQSWSI0fjzSNGYR7KjSFZgEBAQ Received: from ppp121-44-198-103.lns20.syd7.internode.on.net (HELO dastard) ([121.44.198.103]) by ipmail06.adl6.internode.on.net with ESMTP; 09 Nov 2015 07:46:49 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZvXKS-0003ij-HQ; Mon, 09 Nov 2015 08:16:48 +1100 Date: Mon, 9 Nov 2015 08:16:48 +1100 From: Dave Chinner To: Chris Mason Cc: xfs@oss.sgi.com, Tejun Heo Subject: Re: [PATCH RFC] use WQ_MEM_RECLAIM for m_log_workqueue Message-ID: <20151108211648.GV10656@dastard> X-ASG-Orig-Subj: Re: [PATCH RFC] use WQ_MEM_RECLAIM for m_log_workqueue References: <20151104185103.GC5458@ret.masoncoding.com> <20151105121059.GJ5458@ret.masoncoding.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151105121059.GJ5458@ret.masoncoding.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1447017410 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24224 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Nov 05, 2015 at 07:10:59AM -0500, Chris Mason wrote: > On Wed, Nov 04, 2015 at 01:51:03PM -0500, Chris Mason wrote: > > I think we should be using WQ_MEM_RECLAIM to make sure this thread pool > > makes progress when we're not able to allocate new workers. > > Thinking harder, it's probably best to just flag them all > WQ_MEM_RECLAIM. This is what btrfs does, and it saves you from painful > discoveries about how different queues depend on each other. Makes sense, we missed this one because the original use of the workqueue was just for a periodic, non-critical function. Then we move the log IO completion to it in 3.19 in commit b29c70f ("xfs: split metadata and log buffer completion to separate workqueues"). > I'll start testing and send a v2. Seems like a no-brainer to me... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david+bounce@madore.org Sun Nov 8 15:52:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 3D85B7F52 for ; Sun, 8 Nov 2015 15:52:47 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id C37C8AC001 for ; Sun, 8 Nov 2015 13:52:46 -0800 (PST) X-ASG-Debug-ID: 1447019562-04cbb02424c41f0001-NocioJ Received: from achernar.gro-tsen.net (achernar.gro-tsen.net [195.154.91.68]) by cuda.sgi.com with ESMTP id ND5kWfl57FFko8fQ (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Sun, 08 Nov 2015 13:52:43 -0800 (PST) X-Barracuda-Envelope-From: david+bounce@madore.org X-Barracuda-Apparent-Source-IP: 195.154.91.68 Received: by achernar.gro-tsen.net (Postfix, from userid 500) id DA8D22402B4; Sun, 8 Nov 2015 22:52:41 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=madore.org; s=achernar; t=1447019561; bh=1rtRRL961G1PS9vDn1Egqjyc2mf9LDD+IaGRL9S0/6Y=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=lbaAeG+fstye0kKy1hgGjNIvEW/6x4Ylsl2k/916ERwiNrcv4L8jKicnJ7dlhabHR C+rUtQL5ySYqsV1jmHdf/RlPiD5Q4TLShoehs+WaRbkop+mZBuAhoUvW21NON94qaQ DX0kX0hGO5pknksD5H7RYsAQLXnQzELq3wOCnYag= Date: Sun, 8 Nov 2015 22:52:41 +0100 From: David Madore To: Christoph Hellwig Cc: Linux Kernel mailing-list , xfs@oss.sgi.com Subject: Re: XFS freeze (xfsaild blocked) with 4.2.5 (also 4.3) Message-ID: <20151108215241.GA10569@achernar.madore.org> X-ASG-Orig-Subj: Re: XFS freeze (xfsaild blocked) with 4.2.5 (also 4.3) References: <20151108114917.GA5620@achernar.madore.org> <20151108164941.GA26354@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151108164941.GA26354@infradead.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: achernar.gro-tsen.net[195.154.91.68] X-Barracuda-Start-Time: 1447019563 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24225 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Sun, Nov 08, 2015 at 08:49:41AM -0800, Christoph Hellwig wrote: > can you try the patch at: > > http://article.gmane.org/gmane.comp.file-systems.xfs.general/70984 > > The symptoms sound surprisingly similar. Thanks for the pointer. I'm running with the patch now, and will follow-up if the problem reoccurs. -- David A. Madore ( http://www.madore.org/~david/ ) From agruenba@redhat.com Sun Nov 8 16:19:43 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2B7BE7F54 for ; Sun, 8 Nov 2015 16:19:43 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0F2DA8F8035 for ; Sun, 8 Nov 2015 14:19:39 -0800 (PST) X-ASG-Debug-ID: 1447021175-04cbb02423c4860001-NocioJ Received: from mail-lb0-f178.google.com (mail-lb0-f178.google.com [209.85.217.178]) by cuda.sgi.com with ESMTP id JaK6UYmdkZ9g6Vls (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sun, 08 Nov 2015 14:19:36 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.217.178 Received: by lbces9 with SMTP id es9so17520912lbc.2 for ; Sun, 08 Nov 2015 14:19:35 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=+Gr09NqzDPnCm/Zh3amgUrB7Ojapnm39jF9YnIAHuLc=; b=kFTaVcFhJorEAKFKRzI+hBT5K8ODGejJ0mCG4t8YuBa5tbcJ5thrpLBR2BDzntI0Dq Yr09O9TE5I8fxran4QGOZ5nP4JP6X4/wcLl5rA9ghp7FqbEg40tcpi/ITF/Ueo5R9sLF 5xS1r9r7cYZRT2KPBovA08xKSXG2IZbiYW0rleVhsPGG3kWEygQsJzVWAMVQaHh7/8QH 1/tHTI3NvXi3p2ot6xHitGBzT9rNK13b/GNbjdBjh7WeaM6hS0sI556jslaPlmEa+Lxf cK18D01nNUlOQYkRXfXUwCA+wkdV4TjHUadMjFC48qb08hv0DmBfKzt+8A9N//StnfMW 2b8w== X-Gm-Message-State: ALoCoQkzQ8cJ/qIu9EuIZ7puM1ocOjP+yXqe3mHrIU+ybgzsqQg557ZUQaPXMbkXJoTwPb7d6v3f MIME-Version: 1.0 X-Received: by 10.112.236.8 with SMTP id uq8mr13088457lbc.116.1447021175294; Sun, 08 Nov 2015 14:19:35 -0800 (PST) Received: by 10.112.53.42 with HTTP; Sun, 8 Nov 2015 14:19:35 -0800 (PST) In-Reply-To: References: <1446563847-14005-1-git-send-email-agruenba@redhat.com> <1446563847-14005-46-git-send-email-agruenba@redhat.com> Date: Sun, 8 Nov 2015 23:19:35 +0100 Message-ID: Subject: Re: [PATCH v13 45/51] sunrpc: Allow to demand-allocate pages to encode into From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v13 45/51] sunrpc: Allow to demand-allocate pages to encode into To: Trond Myklebust Cc: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , Linux Kernel Mailing List , Linux FS-devel Mailing List , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Mailing List Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lb0-f178.google.com[209.85.217.178] X-Barracuda-Start-Time: 1447021176 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24225 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Nov 5, 2015 at 4:57 PM, Trond Myklebust wrote: > On Thu, Nov 5, 2015 at 6:07 AM, Andreas Gruenbacher wrote: >> Trond, >> >> On Tue, Nov 3, 2015 at 5:25 PM, Trond Myklebust >> wrote: >>> On Tue, Nov 3, 2015 at 10:17 AM, Andreas Gruenbacher >>> wrote: >>>> When encoding large, variable-length objects such as acls into xdr_bufs, >>>> it is easier to allocate buffer pages on demand rather than precomputing >>>> the required buffer size. >>> >>> NACK. We're not doing allocations from inside the XDR encoders. This >>> can and should be done before calling into the SUNRPC layer. >> >> an XDR-encoded ACL can be up to 64k (16 pages) in size. In practice, >> large ACLs like that will almost never occur and almost all ACLs will >> fit into a single page though. >> >> The XDR-encoded ACL contains strings for the user and group names >> which need to be looked up when the idmapper is used. Those lookups >> are somewhat expensive; in addition, the lookup results can change >> over time. When precomputing the size, allocating space, and then >> encoding the ACL, we could run out of space when encoding. >> >> So we could always allocate the maximum 16 pages, encode the acl, and >> free the unused pages. This would be rather wasteful though. >> >> Given how simple it is to allocate pages as we go, this seems the >> better choice here. This doesn't break any existing code either; NULL >> page pointers would have oopsed in xdr_get_next_encode_buffer before. >> >> From the memory management point of view, there is no difference in >> preallocating GFP_NOFS pages and allocating them on demand; the pages >> are allocated in the same task and locking context in both cases. >> >> So could you please explain why you object to this change? > > Allocating memory deep in the bowels of the RPC code with the > expectation that it will be freed by the caller of the RPC request is > a layering violation of the ugliest sort. Ah, there we have it, Godwin's Law for software discussions. What happens here is the following: the caller sets up an xdr_stream that contains an array of NULL page pointers (__nfs4_proc_set_acl -> nfs4_encode_acl -> xdr_init_encode_pages). It does so on purpose to tell the XDR layer to allocate pages for it as needed, and it knows it is responsible for later freeing those pages. Without this patch, the XDR layer would immediately Oops when hitting a NULL page pointer. This tells us that the XDR layer is so far not prepared to handle NULL page pointers, and that we can assign a meaning to NULL page pointers without affecting existing callers. Using the existing XDR layer for XDR-encoding ACLs makes sense because the XDR layer already knows how to align things, encode into multiple pages, handle strings that wrap across pages, etc. I really don't want to duplicate all that for ACLs. > How is anyone who is > unfamiliar with the code going to be able to understand what is going > on without tracing through 1000 lines of code to spot where the > allocation is happening? Somebody unfamiliar with the existing code will not understand it without putting some effort in, either. What do you expect? Besides, the caller doesn't care where the allocation is happening, it just cares that it is happening when it should. > Aside from that, we do not want any non-critical blocking while > holding the RPC socket lock. Your allocation request will block all > further traffic to the server until it is satisfied. That includes > blocking page writeback, which might actually free up memory to > satisfy the allocation. > > As I said above, there is no reason whatsoever to have to do all this > inside encode_setacl(). The entire ACL encoding into pages can be done > before even calling into the RPC layer, just like we do today. You have pointed that out before, and as a consequence, it was fixed in the July 22 snapshot (https://lwn.net/Articles/652058/): * Changes to the nfs patches: acls are now encoded above the sunrpc layer. This means we can no longer encode small acls directly into the scratch area of an xdr_buf, we always have to allocate extra memory. But we also don't need to touch the nfs sunrpc code, which Trond objected to. Since then, the ACL encoding happens in __nfs4_proc_set_acl, before calling into the RPC layer. Thanks, Andreas From debbugs@buxtehude.debian.org Sun Nov 8 18:03:18 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id AAE107F56 for ; Sun, 8 Nov 2015 18:03:18 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8A8368F8033 for ; Sun, 8 Nov 2015 16:03:15 -0800 (PST) X-ASG-Debug-ID: 1447027388-04cbb02424c5af0001-NocioJ Received: from buxtehude.debian.org (buxtehude.debian.org [140.211.166.26]) by cuda.sgi.com with ESMTP id hswb3qaUXFjQldzB (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sun, 08 Nov 2015 16:03:08 -0800 (PST) X-Barracuda-Envelope-From: debbugs@buxtehude.debian.org X-Barracuda-Apparent-Source-IP: 140.211.166.26 Received: from debbugs by buxtehude.debian.org with local (Exim 4.84) (envelope-from ) id 1ZvZvN-0003mj-Ur; Mon, 09 Nov 2015 00:03:05 +0000 X-Loop: owner@bugs.debian.org Subject: Bug#804255: Please update initramfs in postinst Reply-To: Nathan Scott , 804255@bugs.debian.org X-ASG-Orig-Subj: Bug#804255: Please update initramfs in postinst Resent-From: Nathan Scott Resent-To: debian-bugs-dist@lists.debian.org Resent-CC: XFS Development Team X-Loop: owner@bugs.debian.org Resent-Date: Mon, 09 Nov 2015 00:03:04 +0000 Resent-Message-ID: X-Debian-PR-Message: followup 804255 X-Debian-PR-Package: xfsprogs X-Debian-PR-Keywords: d-i X-Debian-PR-Source: xfsprogs Received: via spool by 804255-submit@bugs.debian.org id=B804255.144702722713128 (code B ref 804255); Mon, 09 Nov 2015 00:03:04 +0000 Received: (at 804255) by bugs.debian.org; 9 Nov 2015 00:00:27 +0000 Received: from mx4-phx2.redhat.com ([209.132.183.25]) by buxtehude.debian.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.84) (envelope-from ) id 1ZvZso-0003PK-Oy for 804255@bugs.debian.org; Mon, 09 Nov 2015 00:00:26 +0000 Received: from zmail20.collab.prod.int.phx2.redhat.com (zmail20.collab.prod.int.phx2.redhat.com [10.5.83.23]) by mx4-phx2.redhat.com (8.13.8/8.13.8) with ESMTP id tA900K6i021867; Sun, 8 Nov 2015 19:00:20 -0500 Date: Sun, 8 Nov 2015 19:00:20 -0500 (EST) From: Nathan Scott To: Steve McIntyre , 804255@bugs.debian.org Message-ID: <1822095565.6959319.1447027220334.JavaMail.zimbra@redhat.com> In-Reply-To: <20151106161941.15248.86048.reportbug@tack.local> References: <20151106161941.15248.86048.reportbug@tack.local> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.64.51.93] X-Mailer: Zimbra 8.0.6_GA_5922 (ZimbraWebClient - FF37 (Linux)/8.0.6_GA_5922) Thread-Topic: Bug#804255: Please update initramfs in postinst Thread-Index: 9o4atQ/2S8PqjPGj2/mFHCWYGyr2xA== X-Barracuda-Connect: buxtehude.debian.org[140.211.166.26] X-Barracuda-Start-Time: 1447027388 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.02 X-Barracuda-Spam-Status: No, SCORE=0.02 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=THREAD_INDEX, THREAD_TOPIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24227 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... Hi Steve, ----- Original Message ----- > Package: xfsprogs > Version: 3.2.1 > Severity: important > Tags: d-i > > To make this work well, all filesystem tools packages for filesystems > that are likely to be used for / and/or /usr should call > "update-initramfs -u" in their postinst. This will OK. > I've checked your package and I don't see any update-initramfs > calls. (yep, xfsprogs has no postinst at all IIRC) > Please add one. If you'd like help doing that postinst work, I > can supply a patch - just ask! That would be great, if you don't mind Steve? Many thanks! cheers. -- Nathan From ts10@a.shengjumuduan.com Sun Nov 8 23:32:43 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.0 required=5.0 tests=DEAR_SOMETHING, UNPARSEABLE_RELAY autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 921CE7F37 for ; Sun, 8 Nov 2015 23:32:43 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 404FAAC002 for ; Sun, 8 Nov 2015 21:32:39 -0800 (PST) X-ASG-Debug-ID: 1447047153-04bdf03f05c5d50001-NocioJ Received: from a.shengjumuduan.com ([112.195.153.83]) by cuda.sgi.com with SMTP id hNlmhGPVs0bZ8TYb for ; Sun, 08 Nov 2015 21:32:34 -0800 (PST) X-Barracuda-Envelope-From: ts10@a.shengjumuduan.com X-Barracuda-Apparent-Source-IP: 112.195.153.83 Received: from 121.15.41.131 (HELO LQSUVW); Mon, 9 Nov 2015 13:30:53 +0800 Date: Mon, 9 Nov 2015 13:36:13 +0800 From: "Michelle Tang" Reply-To: sales@sz-tecom.com To: "xfs" Subject: Factory for CNC precision parts Message-ID: <201511091336132907890@a.shengjumuduan.com> X-ASG-Orig-Subj: Factory for CNC precision parts X-Mailer: Foxmail 6, 10, 201, 20 [cn] MIME-Version: 1.0 Content-Type: text/plain; charset="GB2312" Content-Transfer-Encoding: base64 X-Barracuda-Connect: UNKNOWN[112.195.153.83] X-Barracuda-Start-Time: 1447047153 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE, UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24232 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS RGVhciBTaXIsDQoNCkhvcGUgeW91IGhhdmUgYSBmYWJ1bG91cyBkYXkhDQoNCk91ciBjb21wYW55 IG1haW5seSBkZWFscyBpbiBtYWNoaW5pbmcgQ05DIHByZWNpc2lvbiBwYXJ0cyBhcHBsaWNhdGlv bnMuICBPdXIgY29tcGFueSBwcm9kdWNlIHBhcnRzIGFzIHBlciBjdXN0b21lciBkcmF3aW5nLCBm cm9tIHByb2R1Y3Rpb24gdG8gYWxsIGtpbmRzIG9mIHN1cmZhY2UgdHJlYXRtZW50IGFuZCBkaWZm ZXJlbnQgdGVjaG5vbG9neSwgc3VjaCBhcyB0byB0aGUgY3VzdG9tZXJzIHdpdGggY29tcGxldGUg Y29uZmlkZW5jZSBndWFyYW50ZWUNCg0KUGxlYXNlIGhhdmUgYSBsb29rIGF0IGZvbGxvd2luZyBz ZXJ2aWNlc6Gtoa2hraGtDQoNCqGkICAgICAgY25jIG1hY2hpbmVkIHBhcnRzLCBjbmMgdHVybmlu ZywgY25jIG1pbGxpbmcgY2VudGVyLCBjbmMgc21hbGwgZGlhbWV0ZXIgbWFjaGluaW5nDQoNCqGk ICAgICAgICBBdXRvbW90aXZlIHBhcnRzIG1hY2hpbmluZw0KDQqhpCAgICAgICAgRWxlY3Rvcm5p Y3MgcGFydCBtYWNoaW5pbmcNCg0KoaQgICAgICAgIFJGIGNvbm5lY3RvciBhY2NlcnNzb3JpZXMN Cg0KoaQgICAgICAgIE1lZGljYWwgJiBGaWJlcm9wdGljIHBhcnRzDQoNCqGkICAgICAgICBFbGVj dHJvbmljIGxpZ2h0Zml0dGluZ3MNCg0KV2Ugd2lsbCBiZSBoYXBweSB0byBwcm92aWRlIHlvdSBv dXIgcXVpY2sgYXNzaXN0YW5jZS5Nb3JlIGRldGFpbCBwbGVhc2UgeW91ciBoZWxwIHRvIHJlZmVy IHRvIG91ciB3ZWJzaXRlIHd3dy5zei10ZWNvbS5jb20gDQoNCkJlc3QgcmVnYXJkcyENCk1pY2hl bGxlIFRhbmcNCg0KVGVjb20gUHJlY2lzaW9uIE1hY2hpbmluZyhzaGVuemhlbilDby4sTFREDQpB ZGQ6IDN0aCBGbG9vcixBMiBCbG9jayxaaG9uZ1BlbmdDaGVuZyBJbmR1c3RyaWFsIFBhcmssIA0K ICAgICAgICBDaHVhbmdDaHVuIFNvdXRoIFJvYWQsR29uZ01pbmcgVG93bixTaGVuWmhlbixDaGlu YQ0KQ2VsbDogMDA4Ni0xMzQgMTA1MyA1ODgwDQpUZWwgOiAwMDg2LTc1NS0yNzE1IDUxMzANCkZh eDogMDA4Ni03NTUtMjcxNSA1MTMwDQpFbWFpbDogTWljaGVsbGVAc3otdGVjb20uY29tDQpXZWI6 IHd3dy5zei10ZWNvbS5jb20= From anthoniocasova@gmail.com Mon Nov 9 00:56:42 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.0 required=5.0 tests=FREEMAIL_FROM,FREEMAIL_REPLY, HTML_MESSAGE,LOTS_OF_MONEY autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 25A3C7F50 for ; 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boundary="----=MailPart0000_0010_7C1244E8" X-Barracuda-Connect: vps-8295.fhnet.fr[93.115.97.125] X-Barracuda-Start-Time: 1447052195 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE, NO_REAL_NAME X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24234 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 NO_REAL_NAME From: does not include a real name 0.00 HTML_MESSAGE BODY: HTML included in message This is a multi-part message in MIME format. ------=MailPart0000_0010_7C1244E8 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable =D0=94=D0=B0=D0=BC=D1=8B =D0=B8 = =D0=B3=D0=BE=D1=81=D0=BF=D0=BE=D0=B4=D0=B0 = =D0=97=D0=B4=D1=80=D0=B0=D0=B2=D1=81=D1=82=D0=B2=D1=83=D0=B9=D1=82=D0=B5 =D0=92=D1=8B =D0=BD=D0=B0=D1=85=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D1=81=D1=8C = =D0=B2 =D0=BF=D0=BE=D0=B8=D1=81=D0=BA=D0=B0=D1=85 = =D1=84=D0=B8=D0=BD=D0=B0=D0=BD=D1=81=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0= =B8=D1=8F =D0=B4=D0=BB=D1=8F =D0=BB=D0=B8=D0=B1=D0=BE = =D0=BF=D0=B5=D1=80=D0=B5=D0=B7=D0=B0=D0=BF=D1=83=D1=81=D1=82=D0=B8=D1=82=D0= =B5=D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F = =D0=B4=D0=BB=D1=8F =D0=BB=D1=8E=D0=B1=D0=BE=D0=B9 = =D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82 =D0=B8=D0=BB=D0=B8 = =D0=BA=D1=83=D0=BF=D0=B8=D1=82=D1=8C =D1=82=D0=B5=D0=B1=D0=B5 = =D0=BA=D0=B2=D0=B0=D1=80=D1=82=D0=B8=D1=80=D0=B0, =D1=8F = =D0=BF=D1=80=D0=B5=D0=B4=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D1=8F=D1=82=D1= =8C =D0=BA=D1=80=D0=B5=D0=B4=D0=B8=D1=82=D1=8B = =D0=B4=D0=B5=D0=BD=D0=B5=D0=B6=D0=BD=D1=8B=D1=85 =D1=81=D1=83=D0=BC=D0=BC = =D0=BE=D1=82 $ 3000 =D0=B4=D0=BE $ 1000.000, =D0=BA=D1=82=D0=BE =D0=B2 = =D1=81=D0=BE=D1=81=D1=82=D0=BE=D1=8F=D0=BD=D0=B8=D0=B8 = =D0=BF=D0=BE=D0=B3=D0=B0=D1=81=D0=B8=D1=82=D1=8C =D0=B5=D0=B3=D0=BE =D1=81 = =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=BD=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D1=82=D0=B0=D0=B2=D0=BA=D0=BE=D0=B9 =D0=B2 = =D1=80=D0=B0=D0=B7=D0=BC=D0=B5=D1=80=D0=B5 3% =D0=B2 =D0=B3=D0=BE=D0=B4, = =D0=B8 =D0=B2=D1=80=D0=B5=D0=BC=D1=8F, = =D0=BD=D0=B0=D1=87=D0=B8=D0=BD=D0=B0=D1=8F =D0=BE=D1=82 1-25 = =D0=BB=D0=B5=D1=82, =D0=B2 = =D0=B7=D0=B0=D0=B2=D0=B8=D1=81=D0=B8=D0=BC=D0=BE=D1=81=D1=82=D0=B8 = =D0=BE=D1=82 =D0=BA=D0=BE=D0=BB=D0=B8=D1=87=D0=B5=D1=81=D1=82=D0=B2=D0=B0 = =D0=BF=D1=80=D0=BE=D1=81=D0=B8=D0=BB , =D0=AF = =D0=B4=D0=B5=D0=BB=D0=B0=D1=8E =D1=8D=D1=82=D0=BE =D0=B2 = =D1=81=D0=BB=D0=B5=D0=B4=D1=83=D1=8E=D1=89=D0=B8=D1=85 = =D0=BE=D0=B1=D0=BB=D0=B0=D1=81=D1=82=D1=8F=D1=85: - = =D1=84=D0=B8=D0=BD=D0=B0=D0=BD=D1=81=D0=BE=D0=B2=D0=BE-=D0=93=D0=BE=D1=82= =D0=BE=D0=B2 =D0=93=D0=BE=D1=82=D0=BE=D0=B2 = =D0=93=D0=BE=D1=82=D0=BE=D0=B2=D0=BD=D0=B5 = =D0=B4=D0=B2=D0=B8=D0=B6=D0=B8=D0=BC=D0=BE=D1=81=D1=82=D1=8C- = =D0=98=D0=BD=D0=B2=D0=B5=D1=81=D1=82=D0=B8=D1=86=D0=B8=D0=B8 = =D0=B0=D0=B2=D1=82=D0=BE=D0=BC=D0=BE=D0=B1=D0=B8=D0=BB=D0=B5- = =D0=B7=D0=B0=D0=B9=D0=BC=D0=B0 = =D0=B7=D0=B0=D0=B4=D0=BE=D0=BB=D0=B6=D0=B5=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0= =B8 =D0=92=D1=8B=D0=BA=D1=83=D0=BF = =D0=BA=D1=80=D0=B5=D0=B4=D0=B8=D1=82=D0=BD=D1=8B=D1=85 = =D0=BA=D0=BE=D0=BD=D1=81=D0=BE=D0=BB=D0=B8=D0=B4=D0=B0=D1=86=D0=B8=D1=8F- = =D0=93=D0=BE=D1=82=D0=BE=D0=B2 =D0=BB=D0=B8=D1=87=D0=BD=D0=BE =D0=B2=D1=8B = =D0=B7=D0=B0=D1=81=D1=82=D1=80=D1=8F=D0=BB=D0=B8. =D0=95=D1=81=D0=BB=D0=B8 = =D0=B2=D1=8B = =D0=B4=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0= =BE =D0=B2 =D0=BD=D0=B5=D0=B9 = =D0=BD=D1=83=D0=B6=D0=B4=D0=B0=D0=B5=D1=82=D1=81=D1=8F, = =D0=BF=D0=BE=D0=B6=D0=B0=D0=BB=D1=83=D0=B9=D1=81=D1=82=D0=B0, = =D1=81=D0=B2=D1=8F=D0=B6=D0=B8=D1=82=D0=B5=D1=81=D1=8C =D1=81=D0=BE = =D0=BC=D0=BD=D0=BE=D0=B9 =D0=B4=D0=BB=D1=8F = =D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B4=D0=BE=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0= =BE=D0=B9 =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=B8 . = =D0=9F=D0=BE=D0=B6=D0=B0=D0=BB=D1=83=D0=B9=D1=81=D1=82=D0=B0, = =D1=81=D0=B2=D1=8F=D0=B6=D0=B8=D1=82=D0=B5=D1=81=D1=8C =D1=81=D0=BE = =D0=BC=D0=BD=D0=BE=D0=B9 =D1=87=D0=B5=D1=80=D0=B5=D0=B7 E-MAIL: = (anthoniocasova@gmail.com) =D0=B8=D0=BB=D0=B8 =D0=BD=D0=B0 = =D0=BC=D0=BE=D0=B5=D0=BC =D1=81=D0=BA=D0=B0=D0=B9=D0=BF=D0=B5 = (anthonio.casova@gmail.com) ------=MailPart0000_0010_7C1244E8 Content-Type: text/html; 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------=MailPart0000_0010_7C1244E8-- From BATV+de400beb68979b2c477c+4460+infradead.org+hch@bombadil.srs.infradead.org Mon Nov 9 01:54:42 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 2FA297F37 for ; Mon, 9 Nov 2015 01:54:42 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8EFB6AC004 for ; Sun, 8 Nov 2015 23:54:41 -0800 (PST) X-ASG-Debug-ID: 1447055679-04bdf03f02c8a30001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id AvqCXFfFklREoZtP (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sun, 08 Nov 2015 23:54:39 -0800 (PST) X-Barracuda-Envelope-From: BATV+de400beb68979b2c477c+4460+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZvhHi-0005Yf-VI; Mon, 09 Nov 2015 07:54:38 +0000 Date: Sun, 8 Nov 2015 23:54:38 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: david@fromorbit.com, xfs@oss.sgi.com Subject: Re: [PATCH v2 03/51] xfs_io: support reflink and dedupe of file ranges Message-ID: <20151109075438.GA17974@infradead.org> X-ASG-Orig-Subj: Re: [PATCH v2 03/51] xfs_io: support reflink and dedupe of file ranges References: <20151007050513.1504.28089.stgit@birch.djwong.org> <20151007050533.1504.66249.stgit@birch.djwong.org> <20151014053656.GJ10397@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151014053656.GJ10397@birch.djwong.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447055679 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24235 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS Any reason why the dedup command is called 'dedupe'? Is this a revenge for the missing 'e' in the creat syscall? :) Either way it would be good to get this support in ASAP so we can have the command ready for xfstests and we can merge the test. They are useful for btrfs and NFS already, so I'd love to fast track them. From BATV+de400beb68979b2c477c+4460+infradead.org+hch@bombadil.srs.infradead.org Mon Nov 9 01:59:45 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4CD787F37 for ; Mon, 9 Nov 2015 01:59:45 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 2D6CA8F8033 for ; Sun, 8 Nov 2015 23:59:42 -0800 (PST) X-ASG-Debug-ID: 1447055973-04bdf03f04c8b40001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id AGrnRdgNH3sWJaRj (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sun, 08 Nov 2015 23:59:33 -0800 (PST) X-Barracuda-Envelope-From: BATV+de400beb68979b2c477c+4460+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZvhMM-000791-3o; Mon, 09 Nov 2015 07:59:26 +0000 Date: Sun, 8 Nov 2015 23:59:26 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: david@fromorbit.com, fstests@vger.kernel.org, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [RFCv3 00/12] xfstests: test the btrfs/xfs reflink/dedupe ioctls Message-ID: <20151109075926.GB17974@infradead.org> X-ASG-Orig-Subj: Re: [RFCv3 00/12] xfstests: test the btrfs/xfs reflink/dedupe ioctls References: <20151007051257.3260.73072.stgit@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151007051257.3260.73072.stgit@birch.djwong.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447055973 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24235 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Tue, Oct 06, 2015 at 10:12:57PM -0700, Darrick J. Wong wrote: > * I don't have any interesting NFS/CIFS setups for test. :( I have a banrch with client and server support for NFSv4.2 CLONE support: http://git.infradead.org/users/hch/pnfs.git/shortlog/refs/heads/reflink+clone For now you want to use btrfs on the server, as using reflinks on XFS seems to be a little unstable over NFS. > If you're going to start using this mess, you probably ought to just > pull from my github trees for kernel[1], xfsprogs[2], and xfstests[3]. > They should just work with the btrfs that's in 4.3. > > Comments and questions are, as always, welcome. Any reason the groups are called clone? I don't really have an opinion on clone vs reflink but given that the xfs_io command is reflink I'd rather be consistent. Otherwise I'd say get it merged ASAP, we can still fix up various details later. From agruenba@redhat.com Mon Nov 9 05:09:18 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 761D87CBF for ; Mon, 9 Nov 2015 05:09:18 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 4A5A8304032 for ; Mon, 9 Nov 2015 03:09:15 -0800 (PST) X-ASG-Debug-ID: 1447067353-04bdf03f05cdb40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id n1v64CWNGZ8VVJl2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:09:14 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id AC88B3DD42; Mon, 9 Nov 2015 11:09:12 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CJ028578; Mon, 9 Nov 2015 06:09:05 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 00/22] Richacls (Core and Ext4) Date: Mon, 9 Nov 2015 12:08:41 +0100 X-ASG-Orig-Subj: [PATCH v15 00/22] Richacls (Core and Ext4) Message-Id: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067353 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Here is another update to the richacl patch queue. This posting contains the patches ready to be merged; the patches later in the queue still need some more review. Changes since the last posting (http://thread.gmane.org/gmane.linux.kernel.cifs/11221): * Replacing an existing file or directory requires to be able to delete and recreate it. A new function may_replace was added to test for replace access vs. delete access (may_delete); this simplifies the code and makes it more readable. Without richacls, deleting and creating requires the same permissions, and making that distinction wasn't useful. * The DELETE permission on a file was accidentally allowing to replace the file without also requiring the ADD_FILE permission on the containing directory. This was fixed and a regression test was added to the test suite. * A comment as to how pages for XDR-encoded ACLs are alocated was added to __nfs4_proc_set_acl. (See the complete patch queue for that.) The complete patch queue is available in git form here: git://git.kernel.org/pub/scm/linux/kernel/git/agruen/linux-richacl.git \ richacl-2015-11-09 The richacl user-space utilitites, man pages, and test suite are available here: https://github.com/andreas-gruenbacher/richacl Changes to other user-space packages for richacl are available here: https://github.com/andreas-gruenbacher/coreutils https://github.com/andreas-gruenbacher/e2fsprogs https://github.com/andreas-gruenbacher/xfsprogs-dev https://github.com/andreas-gruenbacher/nfs-utils Please see the richacl homepage for more information: http://www.bestbits.at/richacl/ Thanks, Andreas Andreas Gruenbacher (20): vfs: Add IS_ACL() and IS_RICHACL() tests vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags vfs: Make the inode passed to inode_change_ok non-const vfs: Add permission flags for setting file attributes richacl: In-memory representation and helper functions richacl: Permission mapping functions richacl: Compute maximum file masks from an acl richacl: Permission check algorithm posix_acl: Unexport acl_by_type and make it static vfs: Cache base_acl objects in inodes vfs: Add get_richacl and set_richacl inode operations vfs: Cache richacl in struct inode richacl: Update the file masks in chmod() richacl: Check if an acl is equivalent to a file mode richacl: Create-time inheritance richacl: Automatic Inheritance richacl: xattr mapping functions richacl: Add richacl xattr handler vfs: Add richacl permission checking Aneesh Kumar K.V (2): ext4: Add richacl support ext4: Add richacl feature flag drivers/staging/lustre/lustre/llite/llite_lib.c | 2 +- fs/Kconfig | 3 + fs/Makefile | 2 + fs/attr.c | 81 +++- fs/ext4/Kconfig | 11 + fs/ext4/Makefile | 1 + fs/ext4/ext4.h | 6 +- fs/ext4/file.c | 3 + fs/ext4/ialloc.c | 11 +- fs/ext4/inode.c | 12 +- fs/ext4/namei.c | 5 + fs/ext4/richacl.c | 142 ++++++ fs/ext4/richacl.h | 40 ++ fs/ext4/super.c | 49 +- fs/ext4/xattr.c | 7 + fs/f2fs/acl.c | 4 +- fs/inode.c | 15 +- fs/jffs2/acl.c | 10 +- fs/namei.c | 118 +++-- fs/posix_acl.c | 50 +-- fs/richacl_base.c | 564 ++++++++++++++++++++++++ fs/richacl_inode.c | 333 ++++++++++++++ fs/richacl_xattr.c | 298 +++++++++++++ fs/xattr.c | 34 +- include/linux/fs.h | 60 ++- include/linux/posix_acl.h | 13 +- include/linux/richacl.h | 208 +++++++++ include/linux/richacl_xattr.h | 44 ++ include/uapi/linux/Kbuild | 2 + include/uapi/linux/fs.h | 3 +- include/uapi/linux/richacl.h | 152 +++++++ include/uapi/linux/richacl_xattr.h | 44 ++ include/uapi/linux/xattr.h | 2 + 33 files changed, 2222 insertions(+), 107 deletions(-) create mode 100644 fs/ext4/richacl.c create mode 100644 fs/ext4/richacl.h create mode 100644 fs/richacl_base.c create mode 100644 fs/richacl_inode.c create mode 100644 fs/richacl_xattr.c create mode 100644 include/linux/richacl.h create mode 100644 include/linux/richacl_xattr.h create mode 100644 include/uapi/linux/richacl.h create mode 100644 include/uapi/linux/richacl_xattr.h -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:09:21 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C6C607F50 for ; Mon, 9 Nov 2015 05:09:21 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id B6308304032 for ; Mon, 9 Nov 2015 03:09:21 -0800 (PST) X-ASG-Debug-ID: 1447067359-04cb6c296acc790001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id nm0YVDBxmIWGdWQy (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:09:20 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 8FB6BC00354D; Mon, 9 Nov 2015 11:09:19 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CK028578; Mon, 9 Nov 2015 06:09:13 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 01/22] vfs: Add IS_ACL() and IS_RICHACL() tests Date: Mon, 9 Nov 2015 12:08:42 +0100 X-ASG-Orig-Subj: [PATCH v15 01/22] vfs: Add IS_ACL() and IS_RICHACL() tests Message-Id: <1447067343-31479-2-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067360 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The vfs does not apply the umask for file systems that support acls. The test used for this used to be called IS_POSIXACL(). Switch to a new IS_ACL() test to check for either posix acls or richacls instead. Add a new MS_RICHACL flag and IS_RICHACL() test for richacls alone. The IS_POSIXACL() test is still needed by nfsd. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields Reviewed-by: Andreas Dilger --- fs/Kconfig | 3 +++ fs/namei.c | 8 ++++---- include/linux/fs.h | 12 ++++++++++++ include/uapi/linux/fs.h | 3 ++- 4 files changed, 21 insertions(+), 5 deletions(-) diff --git a/fs/Kconfig b/fs/Kconfig index da3f32f..bff2879 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -56,6 +56,9 @@ endif # BLOCK config FS_POSIX_ACL def_bool n +config FS_RICHACL + def_bool n + config EXPORTFS tristate diff --git a/fs/namei.c b/fs/namei.c index 33e9495..224ecf1 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2798,7 +2798,7 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, } mode = op->mode; - if ((open_flag & O_CREAT) && !IS_POSIXACL(dir)) + if ((open_flag & O_CREAT) && !IS_ACL(dir)) mode &= ~current_umask(); excl = (open_flag & (O_EXCL | O_CREAT)) == (O_EXCL | O_CREAT); @@ -2982,7 +2982,7 @@ static int lookup_open(struct nameidata *nd, struct path *path, /* Negative dentry, just create the file */ if (!dentry->d_inode && (op->open_flag & O_CREAT)) { umode_t mode = op->mode; - if (!IS_POSIXACL(dir->d_inode)) + if (!IS_ACL(dir->d_inode)) mode &= ~current_umask(); /* * This write is needed to ensure that a @@ -3553,7 +3553,7 @@ retry: if (IS_ERR(dentry)) return PTR_ERR(dentry); - if (!IS_POSIXACL(path.dentry->d_inode)) + if (!IS_ACL(path.dentry->d_inode)) mode &= ~current_umask(); error = security_path_mknod(&path, dentry, mode, dev); if (error) @@ -3622,7 +3622,7 @@ retry: if (IS_ERR(dentry)) return PTR_ERR(dentry); - if (!IS_POSIXACL(path.dentry->d_inode)) + if (!IS_ACL(path.dentry->d_inode)) mode &= ~current_umask(); error = security_path_mkdir(&path, dentry, mode); if (!error) diff --git a/include/linux/fs.h b/include/linux/fs.h index 72d8a84..4efa435 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1781,6 +1781,12 @@ struct super_operations { #define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE) #define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL) +#ifdef CONFIG_FS_RICHACL +#define IS_RICHACL(inode) __IS_FLG(inode, MS_RICHACL) +#else +#define IS_RICHACL(inode) 0 +#endif + #define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD) #define IS_NOCMTIME(inode) ((inode)->i_flags & S_NOCMTIME) #define IS_SWAPFILE(inode) ((inode)->i_flags & S_SWAPFILE) @@ -1794,6 +1800,12 @@ struct super_operations { (inode)->i_rdev == WHITEOUT_DEV) /* + * IS_ACL() tells the VFS to not apply the umask + * and use check_acl for acl permission checks when defined. + */ +#define IS_ACL(inode) __IS_FLG(inode, MS_POSIXACL | MS_RICHACL) + +/* * Inode state bits. Protected by inode->i_lock * * Three bits determine the dirty state of the inode, I_DIRTY_SYNC, diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index 9b964a5..6ac6bc9 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -81,7 +81,7 @@ struct inodes_stat_t { #define MS_VERBOSE 32768 /* War is peace. Verbosity is silence. MS_VERBOSE is deprecated. */ #define MS_SILENT 32768 -#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */ +#define MS_POSIXACL (1<<16) /* Supports POSIX ACLs */ #define MS_UNBINDABLE (1<<17) /* change to unbindable */ #define MS_PRIVATE (1<<18) /* change to private */ #define MS_SLAVE (1<<19) /* change to slave */ @@ -91,6 +91,7 @@ struct inodes_stat_t { #define MS_I_VERSION (1<<23) /* Update inode I_version field */ #define MS_STRICTATIME (1<<24) /* Always perform atime updates */ #define MS_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */ +#define MS_RICHACL (1<<26) /* Supports richacls */ /* These sb flags are internal to the kernel */ #define MS_NOSEC (1<<28) -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:09:31 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3DFFD7CBF for ; Mon, 9 Nov 2015 05:09:31 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 12A1A8F8049 for ; Mon, 9 Nov 2015 03:09:28 -0800 (PST) X-ASG-Debug-ID: 1447067366-04bdf03f04cdb50001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id cD3W2utBT3YOMJml (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:09:26 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 73AADE7066; Mon, 9 Nov 2015 11:09:26 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CL028578; Mon, 9 Nov 2015 06:09:20 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 02/22] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Date: Mon, 9 Nov 2015 12:08:43 +0100 X-ASG-Orig-Subj: [PATCH v15 02/22] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Message-Id: <1447067343-31479-3-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067366 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Richacls distinguish between creating non-directories and directories. To support that, add an isdir parameter to may_create(). When checking inode_permission() for create permission, pass in an additional MAY_CREATE_FILE or MAY_CREATE_DIR mask flag. Add may_replace() to allow checking for delete and create access when replacing an existing file in vfs_rename(). Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields Reviewed-by: Andreas Dilger --- fs/namei.c | 49 +++++++++++++++++++++++++++++++++---------------- include/linux/fs.h | 2 ++ 2 files changed, 35 insertions(+), 16 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 224ecf1..24a98f9 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -453,7 +453,9 @@ static int sb_permission(struct super_block *sb, struct inode *inode, int mask) * this, letting us set arbitrary permissions for filesystem access without * changing the "normal" UIDs which are used for other things. * - * When checking for MAY_APPEND, MAY_WRITE must also be set in @mask. + * MAY_WRITE must be set in @mask whenever MAY_APPEND, MAY_CREATE_FILE, or + * MAY_CREATE_DIR are set. That way, file systems that don't support these + * permissions will check for MAY_WRITE instead. */ int inode_permission(struct inode *inode, int mask) { @@ -2549,7 +2551,8 @@ EXPORT_SYMBOL(__check_sticky); * 10. We don't allow removal of NFS sillyrenamed files; it's handled by * nfs_async_unlink(). */ -static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) +static int may_delete_or_replace(struct inode *dir, struct dentry *victim, + bool isdir, int mask) { struct inode *inode = d_backing_inode(victim); int error; @@ -2561,7 +2564,7 @@ static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) BUG_ON(victim->d_parent->d_inode != dir); audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); - error = inode_permission(dir, MAY_WRITE | MAY_EXEC); + error = inode_permission(dir, mask); if (error) return error; if (IS_APPEND(dir)) @@ -2584,6 +2587,18 @@ static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) return 0; } +static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) +{ + return may_delete_or_replace(dir, victim, isdir, MAY_WRITE | MAY_EXEC); +} + +static int may_replace(struct inode *dir, struct dentry *victim, bool isdir) +{ + int mask = isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; + + return may_delete_or_replace(dir, victim, isdir, mask | MAY_WRITE | MAY_EXEC); +} + /* Check whether we can create an object with dentry child in directory * dir. * 1. We can't do it if child already exists (open has special treatment for @@ -2592,14 +2607,16 @@ static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) * 3. We should have write and exec permissions on dir * 4. We can't do it if dir is immutable (done in permission()) */ -static inline int may_create(struct inode *dir, struct dentry *child) +static inline int may_create(struct inode *dir, struct dentry *child, bool isdir) { + int mask = isdir ? MAY_CREATE_DIR : MAY_CREATE_FILE; + audit_inode_child(dir, child, AUDIT_TYPE_CHILD_CREATE); if (child->d_inode) return -EEXIST; if (IS_DEADDIR(dir)) return -ENOENT; - return inode_permission(dir, MAY_WRITE | MAY_EXEC); + return inode_permission(dir, MAY_WRITE | MAY_EXEC | mask); } /* @@ -2649,7 +2666,7 @@ EXPORT_SYMBOL(unlock_rename); int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool want_excl) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; @@ -3494,7 +3511,7 @@ EXPORT_SYMBOL(user_path_create); int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; @@ -3586,7 +3603,7 @@ SYSCALL_DEFINE3(mknod, const char __user *, filename, umode_t, mode, unsigned, d int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, true); unsigned max_links = dir->i_sb->s_max_links; if (error) @@ -3667,7 +3684,7 @@ EXPORT_SYMBOL(dentry_unhash); int vfs_rmdir(struct inode *dir, struct dentry *dentry) { - int error = may_delete(dir, dentry, 1); + int error = may_delete(dir, dentry, true); if (error) return error; @@ -3789,7 +3806,7 @@ SYSCALL_DEFINE1(rmdir, const char __user *, pathname) int vfs_unlink(struct inode *dir, struct dentry *dentry, struct inode **delegated_inode) { struct inode *target = dentry->d_inode; - int error = may_delete(dir, dentry, 0); + int error = may_delete(dir, dentry, false); if (error) return error; @@ -3923,7 +3940,7 @@ SYSCALL_DEFINE1(unlink, const char __user *, pathname) int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; @@ -4006,7 +4023,7 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de if (!inode) return -ENOENT; - error = may_create(dir, new_dentry); + error = may_create(dir, new_dentry, false); if (error) return error; @@ -4199,14 +4216,14 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry, return error; if (!target) { - error = may_create(new_dir, new_dentry); + error = may_create(new_dir, new_dentry, is_dir); } else { new_is_dir = d_is_dir(new_dentry); if (!(flags & RENAME_EXCHANGE)) - error = may_delete(new_dir, new_dentry, is_dir); + error = may_replace(new_dir, new_dentry, is_dir); else - error = may_delete(new_dir, new_dentry, new_is_dir); + error = may_replace(new_dir, new_dentry, new_is_dir); } if (error) return error; @@ -4469,7 +4486,7 @@ SYSCALL_DEFINE2(rename, const char __user *, oldname, const char __user *, newna int vfs_whiteout(struct inode *dir, struct dentry *dentry) { - int error = may_create(dir, dentry); + int error = may_create(dir, dentry, false); if (error) return error; diff --git a/include/linux/fs.h b/include/linux/fs.h index 4efa435..d6e2330 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -82,6 +82,8 @@ typedef void (dax_iodone_t)(struct buffer_head *bh_map, int uptodate); #define MAY_CHDIR 0x00000040 /* called from RCU mode, don't block */ #define MAY_NOT_BLOCK 0x00000080 +#define MAY_CREATE_FILE 0x00000100 +#define MAY_CREATE_DIR 0x00000200 /* * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:09:38 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 2AF817CBF for ; Mon, 9 Nov 2015 05:09:38 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id C8148AC003 for ; Mon, 9 Nov 2015 03:09:34 -0800 (PST) X-ASG-Debug-ID: 1447067373-04bdf03f04cdb60001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 6GpHuNEL4iULX0hh (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:09:33 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 594D68E22D; Mon, 9 Nov 2015 11:09:33 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CM028578; Mon, 9 Nov 2015 06:09:27 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 03/22] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags Date: Mon, 9 Nov 2015 12:08:44 +0100 X-ASG-Orig-Subj: [PATCH v15 03/22] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags Message-Id: <1447067343-31479-4-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067373 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Normally, deleting a file requires MAY_WRITE access to the parent directory. With richacls, a file may be deleted with MAY_DELETE_CHILD access to the parent directory or with MAY_DELETE_SELF access to the file. To support that, pass the MAY_DELETE_CHILD mask flag to inode_permission() when checking for delete access inside a directory, and MAY_DELETE_SELF when checking for delete access to a file itelf. The MAY_DELETE_SELF permission overrides the sticky directory check. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/namei.c | 20 ++++++++++++-------- include/linux/fs.h | 2 ++ 2 files changed, 14 insertions(+), 8 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 24a98f9..7f21554 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -453,9 +453,9 @@ static int sb_permission(struct super_block *sb, struct inode *inode, int mask) * this, letting us set arbitrary permissions for filesystem access without * changing the "normal" UIDs which are used for other things. * - * MAY_WRITE must be set in @mask whenever MAY_APPEND, MAY_CREATE_FILE, or - * MAY_CREATE_DIR are set. That way, file systems that don't support these - * permissions will check for MAY_WRITE instead. + * MAY_WRITE must be set in @mask whenever MAY_APPEND, MAY_CREATE_FILE, + * MAY_CREATE_DIR, or MAY_DELETE_CHILD are set. That way, file systems that + * don't support these permissions will check for MAY_WRITE instead. */ int inode_permission(struct inode *inode, int mask) { @@ -2564,14 +2564,18 @@ static int may_delete_or_replace(struct inode *dir, struct dentry *victim, BUG_ON(victim->d_parent->d_inode != dir); audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE); - error = inode_permission(dir, mask); + error = inode_permission(dir, mask | MAY_WRITE | MAY_DELETE_CHILD); + if (!error && check_sticky(dir, inode)) + error = -EPERM; + if (error && IS_RICHACL(inode) && + inode_permission(inode, MAY_DELETE_SELF) == 0 && + inode_permission(dir, mask) == 0) + error = 0; if (error) return error; if (IS_APPEND(dir)) return -EPERM; - - if (check_sticky(dir, inode) || IS_APPEND(inode) || - IS_IMMUTABLE(inode) || IS_SWAPFILE(inode)) + if (IS_APPEND(inode) || IS_IMMUTABLE(inode) || IS_SWAPFILE(inode)) return -EPERM; if (isdir) { if (!d_is_dir(victim)) @@ -2589,7 +2593,7 @@ static int may_delete_or_replace(struct inode *dir, struct dentry *victim, static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) { - return may_delete_or_replace(dir, victim, isdir, MAY_WRITE | MAY_EXEC); + return may_delete_or_replace(dir, victim, isdir, MAY_EXEC); } static int may_replace(struct inode *dir, struct dentry *victim, bool isdir) diff --git a/include/linux/fs.h b/include/linux/fs.h index d6e2330..402acd7 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -84,6 +84,8 @@ typedef void (dax_iodone_t)(struct buffer_head *bh_map, int uptodate); #define MAY_NOT_BLOCK 0x00000080 #define MAY_CREATE_FILE 0x00000100 #define MAY_CREATE_DIR 0x00000200 +#define MAY_DELETE_CHILD 0x00000400 +#define MAY_DELETE_SELF 0x00000800 /* * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:09:41 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7E5597F5F for ; Mon, 9 Nov 2015 05:09:41 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 604CD8F804B for ; Mon, 9 Nov 2015 03:09:41 -0800 (PST) X-ASG-Debug-ID: 1447067380-04bdf03f05cdb70001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id XXqkvCcGkBRWRNOU (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:09:40 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 2BDC4C0B60EA; Mon, 9 Nov 2015 11:09:40 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CN028578; Mon, 9 Nov 2015 06:09:33 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 04/22] vfs: Make the inode passed to inode_change_ok non-const Date: Mon, 9 Nov 2015 12:08:45 +0100 X-ASG-Orig-Subj: [PATCH v15 04/22] vfs: Make the inode passed to inode_change_ok non-const Message-Id: <1447067343-31479-5-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067380 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 We will need to call iop->permission and iop->get_acl from inode_change_ok() for additional permission checks, and both take a non-const inode. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields Reviewed-by: Andreas Dilger --- fs/attr.c | 2 +- include/linux/fs.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/attr.c b/fs/attr.c index 6530ced..328be71 100644 --- a/fs/attr.c +++ b/fs/attr.c @@ -28,7 +28,7 @@ * Should be called as the first thing in ->setattr implementations, * possibly after taking additional locks. */ -int inode_change_ok(const struct inode *inode, struct iattr *attr) +int inode_change_ok(struct inode *inode, struct iattr *attr) { unsigned int ia_valid = attr->ia_valid; diff --git a/include/linux/fs.h b/include/linux/fs.h index 402acd7..aab32c8 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2871,7 +2871,7 @@ extern int buffer_migrate_page(struct address_space *, #define buffer_migrate_page NULL #endif -extern int inode_change_ok(const struct inode *, struct iattr *); +extern int inode_change_ok(struct inode *, struct iattr *); extern int inode_newsize_ok(const struct inode *, loff_t offset); extern void setattr_copy(struct inode *inode, const struct iattr *attr); -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:09:49 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6C77E7CBF for ; Mon, 9 Nov 2015 05:09:49 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id E1EE6AC007 for ; Mon, 9 Nov 2015 03:09:48 -0800 (PST) X-ASG-Debug-ID: 1447067387-04cb6c296dcc7c0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Ykm2KRPj8xJDTRih (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:09:47 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 067E096C2; Mon, 9 Nov 2015 11:09:47 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CO028578; Mon, 9 Nov 2015 06:09:40 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 05/22] vfs: Add permission flags for setting file attributes Date: Mon, 9 Nov 2015 12:08:46 +0100 X-ASG-Orig-Subj: [PATCH v15 05/22] vfs: Add permission flags for setting file attributes Message-Id: <1447067343-31479-6-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067387 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Richacls support permissions that allow to take ownership of a file, change the file permissions, and set the file timestamps. Support that by introducing new permission mask flags and by checking for those mask flags in inode_change_ok(). Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/attr.c | 79 +++++++++++++++++++++++++++++++++++++++++++++--------- include/linux/fs.h | 3 +++ 2 files changed, 70 insertions(+), 12 deletions(-) diff --git a/fs/attr.c b/fs/attr.c index 328be71..85483e0 100644 --- a/fs/attr.c +++ b/fs/attr.c @@ -17,6 +17,65 @@ #include /** + * inode_extended_permission - permissions beyond read/write/execute + * + * Check for permissions that only richacls can currently grant. + */ +static int inode_extended_permission(struct inode *inode, int mask) +{ + if (!IS_RICHACL(inode)) + return -EPERM; + return inode_permission(inode, mask); +} + +static bool inode_uid_change_ok(struct inode *inode, kuid_t ia_uid) +{ + if (uid_eq(current_fsuid(), inode->i_uid) && + uid_eq(ia_uid, inode->i_uid)) + return true; + if (uid_eq(current_fsuid(), ia_uid) && + inode_extended_permission(inode, MAY_TAKE_OWNERSHIP) == 0) + return true; + if (capable_wrt_inode_uidgid(inode, CAP_CHOWN)) + return true; + return false; +} + +static bool inode_gid_change_ok(struct inode *inode, kgid_t ia_gid) +{ + int in_group = in_group_p(ia_gid); + if (uid_eq(current_fsuid(), inode->i_uid) && + (in_group || gid_eq(ia_gid, inode->i_gid))) + return true; + if (in_group && inode_extended_permission(inode, MAY_TAKE_OWNERSHIP) == 0) + return true; + if (capable_wrt_inode_uidgid(inode, CAP_CHOWN)) + return true; + return false; +} + +/** + * inode_owner_permitted_or_capable + * + * Check for permissions implicitly granted to the owner, like MAY_CHMOD or + * MAY_SET_TIMES. Equivalent to inode_owner_or_capable for file systems + * without support for those permissions. + */ +static bool inode_owner_permitted_or_capable(struct inode *inode, int mask) +{ + struct user_namespace *ns; + + if (uid_eq(current_fsuid(), inode->i_uid)) + return true; + if (inode_extended_permission(inode, mask) == 0) + return true; + ns = current_user_ns(); + if (ns_capable(ns, CAP_FOWNER) && kuid_has_mapping(ns, inode->i_uid)) + return true; + return false; +} + +/** * inode_change_ok - check if attribute changes to an inode are allowed * @inode: inode to check * @attr: attributes to change @@ -47,22 +106,18 @@ int inode_change_ok(struct inode *inode, struct iattr *attr) return 0; /* Make sure a caller can chown. */ - if ((ia_valid & ATTR_UID) && - (!uid_eq(current_fsuid(), inode->i_uid) || - !uid_eq(attr->ia_uid, inode->i_uid)) && - !capable_wrt_inode_uidgid(inode, CAP_CHOWN)) - return -EPERM; + if (ia_valid & ATTR_UID) + if (!inode_uid_change_ok(inode, attr->ia_uid)) + return -EPERM; /* Make sure caller can chgrp. */ - if ((ia_valid & ATTR_GID) && - (!uid_eq(current_fsuid(), inode->i_uid) || - (!in_group_p(attr->ia_gid) && !gid_eq(attr->ia_gid, inode->i_gid))) && - !capable_wrt_inode_uidgid(inode, CAP_CHOWN)) - return -EPERM; + if (ia_valid & ATTR_GID) + if (!inode_gid_change_ok(inode, attr->ia_gid)) + return -EPERM; /* Make sure a caller can chmod. */ if (ia_valid & ATTR_MODE) { - if (!inode_owner_or_capable(inode)) + if (!inode_owner_permitted_or_capable(inode, MAY_CHMOD)) return -EPERM; /* Also check the setgid bit! */ if (!in_group_p((ia_valid & ATTR_GID) ? attr->ia_gid : @@ -73,7 +128,7 @@ int inode_change_ok(struct inode *inode, struct iattr *attr) /* Check for setting the inode time. */ if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)) { - if (!inode_owner_or_capable(inode)) + if (!inode_owner_permitted_or_capable(inode, MAY_SET_TIMES)) return -EPERM; } diff --git a/include/linux/fs.h b/include/linux/fs.h index aab32c8..ba91a89 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -86,6 +86,9 @@ typedef void (dax_iodone_t)(struct buffer_head *bh_map, int uptodate); #define MAY_CREATE_DIR 0x00000200 #define MAY_DELETE_CHILD 0x00000400 #define MAY_DELETE_SELF 0x00000800 +#define MAY_TAKE_OWNERSHIP 0x00001000 +#define MAY_CHMOD 0x00002000 +#define MAY_SET_TIMES 0x00004000 /* * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:09:56 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 78FEB7CBF for ; Mon, 9 Nov 2015 05:09:56 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 35CB38F804B for ; Mon, 9 Nov 2015 03:09:56 -0800 (PST) X-ASG-Debug-ID: 1447067394-04bdf03f04cdb80001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id I8YZcqTXlG782R4O (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:09:54 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id DE11DC00354D; Mon, 9 Nov 2015 11:09:53 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CP028578; Mon, 9 Nov 2015 06:09:47 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 06/22] richacl: In-memory representation and helper functions Date: Mon, 9 Nov 2015 12:08:47 +0100 X-ASG-Orig-Subj: [PATCH v15 06/22] richacl: In-memory representation and helper functions Message-Id: <1447067343-31479-7-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067394 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 A richacl consists of an NFSv4 acl and an owner, group, and other mask. These three masks correspond to the owner, group, and other file permission bits, but they contain NFSv4 permissions instead of POSIX permissions. Each entry in the NFSv4 acl applies to the file owner (OWNER@), the owning group (GROUP@), everyone (EVERYONE@), or to a specific uid or gid. As in the standard POSIX file permission model, each process is the owner, group, or other file class. A richacl grants a requested access only if the NFSv4 acl in the richacl grants the access (according to the NFSv4 permission check algorithm), and the file mask that applies to the process includes the requested permissions. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/Makefile | 2 + fs/richacl_base.c | 67 ++++++++++++++++ include/linux/richacl.h | 179 +++++++++++++++++++++++++++++++++++++++++++ include/uapi/linux/Kbuild | 1 + include/uapi/linux/richacl.h | 99 ++++++++++++++++++++++++ 5 files changed, 348 insertions(+) create mode 100644 fs/richacl_base.c create mode 100644 include/linux/richacl.h create mode 100644 include/uapi/linux/richacl.h diff --git a/fs/Makefile b/fs/Makefile index f79cf40..fe3e9dd 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -48,6 +48,8 @@ obj-$(CONFIG_COREDUMP) += coredump.o obj-$(CONFIG_SYSCTL) += drop_caches.o obj-$(CONFIG_FHANDLE) += fhandle.o +obj-$(CONFIG_FS_RICHACL) += richacl.o +richacl-y := richacl_base.o obj-y += quota/ diff --git a/fs/richacl_base.c b/fs/richacl_base.c new file mode 100644 index 0000000..c3ec928 --- /dev/null +++ b/fs/richacl_base.c @@ -0,0 +1,67 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include + +MODULE_LICENSE("GPL"); + +/** + * richacl_alloc - allocate a richacl + * @count: number of entries + */ +struct richacl * +richacl_alloc(int count, gfp_t gfp) +{ + size_t size = sizeof(struct richacl) + count * sizeof(struct richace); + struct richacl *acl = kzalloc(size, gfp); + + if (acl) { + atomic_set(&acl->a_refcount, 1); + acl->a_count = count; + } + return acl; +} +EXPORT_SYMBOL_GPL(richacl_alloc); + +/** + * richacl_clone - create a copy of a richacl + */ +struct richacl * +richacl_clone(const struct richacl *acl, gfp_t gfp) +{ + int count = acl->a_count; + size_t size = sizeof(struct richacl) + count * sizeof(struct richace); + struct richacl *dup = kmalloc(size, gfp); + + if (dup) { + memcpy(dup, acl, size); + atomic_set(&dup->a_refcount, 1); + } + return dup; +} + +/** + * richace_copy - copy an acl entry + */ +void +richace_copy(struct richace *to, const struct richace *from) +{ + memcpy(to, from, sizeof(struct richace)); +} diff --git a/include/linux/richacl.h b/include/linux/richacl.h new file mode 100644 index 0000000..edb8480 --- /dev/null +++ b/include/linux/richacl.h @@ -0,0 +1,179 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#ifndef __RICHACL_H +#define __RICHACL_H + +#include + +struct richace { + unsigned short e_type; + unsigned short e_flags; + unsigned int e_mask; + union { + kuid_t uid; + kgid_t gid; + unsigned int special; + } e_id; +}; + +struct richacl { + atomic_t a_refcount; + unsigned int a_owner_mask; + unsigned int a_group_mask; + unsigned int a_other_mask; + unsigned short a_count; + unsigned short a_flags; + struct richace a_entries[0]; +}; + +#define richacl_for_each_entry(_ace, _acl) \ + for (_ace = (_acl)->a_entries; \ + _ace != (_acl)->a_entries + (_acl)->a_count; \ + _ace++) + +#define richacl_for_each_entry_reverse(_ace, _acl) \ + for (_ace = (_acl)->a_entries + (_acl)->a_count - 1; \ + _ace != (_acl)->a_entries - 1; \ + _ace--) + +/** + * richacl_get - grab another reference to a richacl handle + */ +static inline struct richacl * +richacl_get(struct richacl *acl) +{ + if (acl) + atomic_inc(&acl->a_refcount); + return acl; +} + +/** + * richacl_put - free a richacl handle + */ +static inline void +richacl_put(struct richacl *acl) +{ + if (acl && atomic_dec_and_test(&acl->a_refcount)) + kfree(acl); +} + +/** + * richace_is_owner - check if @ace is an OWNER@ entry + */ +static inline bool +richace_is_owner(const struct richace *ace) +{ + return (ace->e_flags & RICHACE_SPECIAL_WHO) && + ace->e_id.special == RICHACE_OWNER_SPECIAL_ID; +} + +/** + * richace_is_group - check if @ace is a GROUP@ entry + */ +static inline bool +richace_is_group(const struct richace *ace) +{ + return (ace->e_flags & RICHACE_SPECIAL_WHO) && + ace->e_id.special == RICHACE_GROUP_SPECIAL_ID; +} + +/** + * richace_is_everyone - check if @ace is an EVERYONE@ entry + */ +static inline bool +richace_is_everyone(const struct richace *ace) +{ + return (ace->e_flags & RICHACE_SPECIAL_WHO) && + ace->e_id.special == RICHACE_EVERYONE_SPECIAL_ID; +} + +/** + * richace_is_unix_user - check if @ace applies to a specific user + */ +static inline bool +richace_is_unix_user(const struct richace *ace) +{ + return !(ace->e_flags & RICHACE_SPECIAL_WHO) && + !(ace->e_flags & RICHACE_IDENTIFIER_GROUP); +} + +/** + * richace_is_unix_group - check if @ace applies to a specific group + */ +static inline bool +richace_is_unix_group(const struct richace *ace) +{ + return !(ace->e_flags & RICHACE_SPECIAL_WHO) && + (ace->e_flags & RICHACE_IDENTIFIER_GROUP); +} + +/** + * richace_is_inherit_only - check if @ace is for inheritance only + * + * ACEs with the %RICHACE_INHERIT_ONLY_ACE flag set have no effect during + * permission checking. + */ +static inline bool +richace_is_inherit_only(const struct richace *ace) +{ + return ace->e_flags & RICHACE_INHERIT_ONLY_ACE; +} + +/** + * richace_is_inheritable - check if @ace is inheritable + */ +static inline bool +richace_is_inheritable(const struct richace *ace) +{ + return ace->e_flags & (RICHACE_FILE_INHERIT_ACE | + RICHACE_DIRECTORY_INHERIT_ACE); +} + +/** + * richace_is_allow - check if @ace is an %ALLOW type entry + */ +static inline bool +richace_is_allow(const struct richace *ace) +{ + return ace->e_type == RICHACE_ACCESS_ALLOWED_ACE_TYPE; +} + +/** + * richace_is_deny - check if @ace is a %DENY type entry + */ +static inline bool +richace_is_deny(const struct richace *ace) +{ + return ace->e_type == RICHACE_ACCESS_DENIED_ACE_TYPE; +} + +/** + * richace_is_same_identifier - are both identifiers the same? + */ +static inline bool +richace_is_same_identifier(const struct richace *a, const struct richace *b) +{ + return !((a->e_flags ^ b->e_flags) & + (RICHACE_SPECIAL_WHO | RICHACE_IDENTIFIER_GROUP)) && + !memcmp(&a->e_id, &b->e_id, sizeof(a->e_id)); +} + +extern struct richacl *richacl_alloc(int, gfp_t); +extern struct richacl *richacl_clone(const struct richacl *, gfp_t); +extern void richace_copy(struct richace *, const struct richace *); + +#endif /* __RICHACL_H */ diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild index f7b2db4..8c82010 100644 --- a/include/uapi/linux/Kbuild +++ b/include/uapi/linux/Kbuild @@ -348,6 +348,7 @@ header-y += reboot.h header-y += reiserfs_fs.h header-y += reiserfs_xattr.h header-y += resource.h +header-y += richacl.h header-y += rfkill.h header-y += romfs_fs.h header-y += rose.h diff --git a/include/uapi/linux/richacl.h b/include/uapi/linux/richacl.h new file mode 100644 index 0000000..08856f8 --- /dev/null +++ b/include/uapi/linux/richacl.h @@ -0,0 +1,99 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + */ + +#ifndef __UAPI_RICHACL_H +#define __UAPI_RICHACL_H + +/* a_flags values */ +#define RICHACL_WRITE_THROUGH 0x40 +#define RICHACL_MASKED 0x80 + +/* e_type values */ +#define RICHACE_ACCESS_ALLOWED_ACE_TYPE 0x0000 +#define RICHACE_ACCESS_DENIED_ACE_TYPE 0x0001 + +/* e_flags bitflags */ +#define RICHACE_FILE_INHERIT_ACE 0x0001 +#define RICHACE_DIRECTORY_INHERIT_ACE 0x0002 +#define RICHACE_NO_PROPAGATE_INHERIT_ACE 0x0004 +#define RICHACE_INHERIT_ONLY_ACE 0x0008 +#define RICHACE_IDENTIFIER_GROUP 0x0040 +#define RICHACE_SPECIAL_WHO 0x4000 + +/* e_mask bitflags */ +#define RICHACE_READ_DATA 0x00000001 +#define RICHACE_LIST_DIRECTORY 0x00000001 +#define RICHACE_WRITE_DATA 0x00000002 +#define RICHACE_ADD_FILE 0x00000002 +#define RICHACE_APPEND_DATA 0x00000004 +#define RICHACE_ADD_SUBDIRECTORY 0x00000004 +#define RICHACE_READ_NAMED_ATTRS 0x00000008 +#define RICHACE_WRITE_NAMED_ATTRS 0x00000010 +#define RICHACE_EXECUTE 0x00000020 +#define RICHACE_DELETE_CHILD 0x00000040 +#define RICHACE_READ_ATTRIBUTES 0x00000080 +#define RICHACE_WRITE_ATTRIBUTES 0x00000100 +#define RICHACE_WRITE_RETENTION 0x00000200 +#define RICHACE_WRITE_RETENTION_HOLD 0x00000400 +#define RICHACE_DELETE 0x00010000 +#define RICHACE_READ_ACL 0x00020000 +#define RICHACE_WRITE_ACL 0x00040000 +#define RICHACE_WRITE_OWNER 0x00080000 +#define RICHACE_SYNCHRONIZE 0x00100000 + +/* e_id values */ +#define RICHACE_OWNER_SPECIAL_ID 0 +#define RICHACE_GROUP_SPECIAL_ID 1 +#define RICHACE_EVERYONE_SPECIAL_ID 2 + +#define RICHACL_VALID_FLAGS ( \ + RICHACL_WRITE_THROUGH | \ + RICHACL_MASKED ) + +#define RICHACE_VALID_FLAGS ( \ + RICHACE_FILE_INHERIT_ACE | \ + RICHACE_DIRECTORY_INHERIT_ACE | \ + RICHACE_NO_PROPAGATE_INHERIT_ACE | \ + RICHACE_INHERIT_ONLY_ACE | \ + RICHACE_IDENTIFIER_GROUP | \ + RICHACE_SPECIAL_WHO ) + +#define RICHACE_INHERITANCE_FLAGS ( \ + RICHACE_FILE_INHERIT_ACE | \ + RICHACE_DIRECTORY_INHERIT_ACE | \ + RICHACE_NO_PROPAGATE_INHERIT_ACE | \ + RICHACE_INHERIT_ONLY_ACE ) + +/* Valid RICHACE_* flags for directories and non-directories */ +#define RICHACE_VALID_MASK ( \ + RICHACE_READ_DATA | RICHACE_LIST_DIRECTORY | \ + RICHACE_WRITE_DATA | RICHACE_ADD_FILE | \ + RICHACE_APPEND_DATA | RICHACE_ADD_SUBDIRECTORY | \ + RICHACE_READ_NAMED_ATTRS | \ + RICHACE_WRITE_NAMED_ATTRS | \ + RICHACE_EXECUTE | \ + RICHACE_DELETE_CHILD | \ + RICHACE_READ_ATTRIBUTES | \ + RICHACE_WRITE_ATTRIBUTES | \ + RICHACE_WRITE_RETENTION | \ + RICHACE_WRITE_RETENTION_HOLD | \ + RICHACE_DELETE | \ + RICHACE_READ_ACL | \ + RICHACE_WRITE_ACL | \ + RICHACE_WRITE_OWNER | \ + RICHACE_SYNCHRONIZE ) + +#endif /* __UAPI_RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:10:03 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 189A67F6B for ; Mon, 9 Nov 2015 05:10:03 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 09464304039 for ; Mon, 9 Nov 2015 03:10:02 -0800 (PST) X-ASG-Debug-ID: 1447067401-04cb6c296dcc7d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id DHIxjQT28KKOMdT3 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:10:01 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id C64D0A452E; Mon, 9 Nov 2015 11:10:00 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CQ028578; Mon, 9 Nov 2015 06:09:54 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 07/22] richacl: Permission mapping functions Date: Mon, 9 Nov 2015 12:08:48 +0100 X-ASG-Orig-Subj: [PATCH v15 07/22] richacl: Permission mapping functions Message-Id: <1447067343-31479-8-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067401 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 We need to map from POSIX permissions to NFSv4 permissions when a chmod() is done, from NFSv4 permissions to POSIX permissions when an acl is set (which implicitly sets the file permission bits), and from the MAY_READ/MAY_WRITE/MAY_EXEC/MAY_APPEND flags to NFSv4 permissions when doing an access check in a richacl. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 118 +++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 3 ++ include/uapi/linux/richacl.h | 44 ++++++++++++++++ 3 files changed, 165 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index c3ec928..a393001 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -65,3 +65,121 @@ richace_copy(struct richace *to, const struct richace *from) { memcpy(to, from, sizeof(struct richace)); } + +/* + * richacl_mask_to_mode - compute the file permission bits from mask + * @mask: %RICHACE_* permission mask + * + * Compute the file permission bits corresponding to a particular set of + * richacl permissions. + * + * See richacl_masks_to_mode(). + */ +static int +richacl_mask_to_mode(unsigned int mask) +{ + int mode = 0; + + if (mask & RICHACE_POSIX_MODE_READ) + mode |= S_IROTH; + if (mask & RICHACE_POSIX_MODE_WRITE) + mode |= S_IWOTH; + if (mask & RICHACE_POSIX_MODE_EXEC) + mode |= S_IXOTH; + + return mode; +} + +/** + * richacl_masks_to_mode - compute file permission bits from file masks + * + * When setting a richacl, we set the file permission bits to indicate maximum + * permissions: for example, we set the Write permission when a mask contains + * RICHACE_APPEND_DATA even if it does not also contain RICHACE_WRITE_DATA. + * + * Permissions which are not in RICHACE_POSIX_MODE_READ, + * RICHACE_POSIX_MODE_WRITE, or RICHACE_POSIX_MODE_EXEC cannot be represented + * in the file permission bits. Such permissions can still be effective, but + * not for new files or after a chmod(); they must be explicitly enabled in the + * richacl. + */ +int +richacl_masks_to_mode(const struct richacl *acl) +{ + return richacl_mask_to_mode(acl->a_owner_mask) << 6 | + richacl_mask_to_mode(acl->a_group_mask) << 3 | + richacl_mask_to_mode(acl->a_other_mask); +} +EXPORT_SYMBOL_GPL(richacl_masks_to_mode); + +/** + * richacl_mode_to_mask - compute a file mask from the lowest three mode bits + * @mode: mode to convert to richacl permissions + * + * When the file permission bits of a file are set with chmod(), this specifies + * the maximum permissions that processes will get. All permissions beyond + * that will be removed from the file masks, and become ineffective. + */ +unsigned int +richacl_mode_to_mask(umode_t mode) +{ + unsigned int mask = 0; + + if (mode & S_IROTH) + mask |= RICHACE_POSIX_MODE_READ; + if (mode & S_IWOTH) + mask |= RICHACE_POSIX_MODE_WRITE; + if (mode & S_IXOTH) + mask |= RICHACE_POSIX_MODE_EXEC; + + return mask; +} + +/** + * richacl_want_to_mask - convert the iop->permission want argument to a mask + * @want: @want argument of the permission inode operation + * + * When checking for append, @want is (MAY_WRITE | MAY_APPEND). + * + * Richacls use the iop->may_create and iop->may_delete hooks which are used + * for checking if creating and deleting files is allowed. These hooks do not + * use richacl_want_to_mask(), so we do not have to deal with mapping MAY_WRITE + * to RICHACE_ADD_FILE, RICHACE_ADD_SUBDIRECTORY, and RICHACE_DELETE_CHILD + * here. + */ +unsigned int +richacl_want_to_mask(unsigned int want) +{ + unsigned int mask = 0; + + if (want & MAY_READ) + mask |= RICHACE_READ_DATA; + if (want & MAY_DELETE_SELF) + mask |= RICHACE_DELETE; + if (want & MAY_TAKE_OWNERSHIP) + mask |= RICHACE_WRITE_OWNER; + if (want & MAY_CHMOD) + mask |= RICHACE_WRITE_ACL; + if (want & MAY_SET_TIMES) + mask |= RICHACE_WRITE_ATTRIBUTES; + if (want & MAY_EXEC) + mask |= RICHACE_EXECUTE; + /* + * differentiate MAY_WRITE from these request + */ + if (want & (MAY_APPEND | + MAY_CREATE_FILE | MAY_CREATE_DIR | + MAY_DELETE_CHILD)) { + if (want & MAY_APPEND) + mask |= RICHACE_APPEND_DATA; + if (want & MAY_CREATE_FILE) + mask |= RICHACE_ADD_FILE; + if (want & MAY_CREATE_DIR) + mask |= RICHACE_ADD_SUBDIRECTORY; + if (want & MAY_DELETE_CHILD) + mask |= RICHACE_DELETE_CHILD; + } else if (want & MAY_WRITE) + mask |= RICHACE_WRITE_DATA; + return mask; +} +EXPORT_SYMBOL_GPL(richacl_want_to_mask); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index edb8480..9102ef0 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -175,5 +175,8 @@ richace_is_same_identifier(const struct richace *a, const struct richace *b) extern struct richacl *richacl_alloc(int, gfp_t); extern struct richacl *richacl_clone(const struct richacl *, gfp_t); extern void richace_copy(struct richace *, const struct richace *); +extern int richacl_masks_to_mode(const struct richacl *); +extern unsigned int richacl_mode_to_mask(umode_t); +extern unsigned int richacl_want_to_mask(unsigned int); #endif /* __RICHACL_H */ diff --git a/include/uapi/linux/richacl.h b/include/uapi/linux/richacl.h index 08856f8..1ed48ac 100644 --- a/include/uapi/linux/richacl.h +++ b/include/uapi/linux/richacl.h @@ -96,4 +96,48 @@ RICHACE_WRITE_OWNER | \ RICHACE_SYNCHRONIZE ) +/* + * The POSIX permissions are supersets of the following richacl permissions: + * + * - MAY_READ maps to READ_DATA or LIST_DIRECTORY, depending on the type + * of the file system object. + * + * - MAY_WRITE maps to WRITE_DATA or RICHACE_APPEND_DATA for files, and to + * ADD_FILE, RICHACE_ADD_SUBDIRECTORY, or RICHACE_DELETE_CHILD for directories. + * + * - MAY_EXECUTE maps to RICHACE_EXECUTE. + * + * (Some of these richacl permissions have the same bit values.) + */ +#define RICHACE_POSIX_MODE_READ ( \ + RICHACE_READ_DATA | \ + RICHACE_LIST_DIRECTORY) +#define RICHACE_POSIX_MODE_WRITE ( \ + RICHACE_WRITE_DATA | \ + RICHACE_ADD_FILE | \ + RICHACE_APPEND_DATA | \ + RICHACE_ADD_SUBDIRECTORY | \ + RICHACE_DELETE_CHILD) +#define RICHACE_POSIX_MODE_EXEC RICHACE_EXECUTE +#define RICHACE_POSIX_MODE_ALL ( \ + RICHACE_POSIX_MODE_READ | \ + RICHACE_POSIX_MODE_WRITE | \ + RICHACE_POSIX_MODE_EXEC) + +/* + * These permissions are always allowed no matter what the acl says. + */ +#define RICHACE_POSIX_ALWAYS_ALLOWED ( \ + RICHACE_SYNCHRONIZE | \ + RICHACE_READ_ATTRIBUTES | \ + RICHACE_READ_ACL) + +/* + * The owner is implicitly granted these permissions under POSIX. + */ +#define RICHACE_POSIX_OWNER_ALLOWED ( \ + RICHACE_WRITE_ATTRIBUTES | \ + RICHACE_WRITE_OWNER | \ + RICHACE_WRITE_ACL) + #endif /* __UAPI_RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:10:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D51427F5D for ; Mon, 9 Nov 2015 05:10:09 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id C4E89304032 for ; Mon, 9 Nov 2015 03:10:09 -0800 (PST) X-ASG-Debug-ID: 1447067407-04cbb02425d1590001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id viP4W74QwbCREIgO (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:10:08 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id AE86E96A2; Mon, 9 Nov 2015 11:10:07 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CR028578; Mon, 9 Nov 2015 06:10:01 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 08/22] richacl: Compute maximum file masks from an acl Date: Mon, 9 Nov 2015 12:08:49 +0100 X-ASG-Orig-Subj: [PATCH v15 08/22] richacl: Compute maximum file masks from an acl Message-Id: <1447067343-31479-9-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067408 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Compute upper bound owner, group, and other file masks with as few permissions as possible without denying any permissions that the NFSv4 acl in a richacl grants. This algorithm is used when a file inherits an acl at create time and when an acl is set via a mechanism that does not provide file masks (such as setting an acl via nfsd). When user-space sets an acl via setxattr, the extended attribute already includes the file masks. Setting an acl also sets the file mode permission bits: they are determined by the file masks; see richacl_masks_to_mode(). Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 157 ++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 1 + 2 files changed, 158 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index a393001..69b806c 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -183,3 +183,160 @@ richacl_want_to_mask(unsigned int want) return mask; } EXPORT_SYMBOL_GPL(richacl_want_to_mask); + +/* + * Note: functions like richacl_allowed_to_who(), richacl_group_class_allowed(), + * and richacl_compute_max_masks() iterate through the entire acl in reverse + * order as an optimization. + * + * In the standard algorithm, aces are considered in forward order. When a + * process matches an ace, the permissions in the ace are either allowed or + * denied depending on the ace type. Once a permission has been allowed or + * denied, it is no longer considered in further aces. + * + * By iterating through the acl in reverse order, we can compute the same + * result without having to keep track of which permissions have been allowed + * and denied already. + */ + +/** + * richacl_allowed_to_who - permissions allowed to a specific who value + * + * Compute the maximum mask values allowed to a specific who value, taking + * everyone@ aces into account. + */ +static unsigned int richacl_allowed_to_who(struct richacl *acl, + struct richace *who) +{ + struct richace *ace; + unsigned int allowed = 0; + + richacl_for_each_entry_reverse(ace, acl) { + if (richace_is_inherit_only(ace)) + continue; + if (richace_is_same_identifier(ace, who) || + richace_is_everyone(ace)) { + if (richace_is_allow(ace)) + allowed |= ace->e_mask; + else if (richace_is_deny(ace)) + allowed &= ~ace->e_mask; + } + } + return allowed; +} + +/** + * richacl_group_class_allowed - maximum permissions of the group class + * + * Compute the maximum mask values allowed to a process in the group class + * (i.e., a process which is not the owner but is in the owning group or + * matches a user or group acl entry). This includes permissions granted or + * denied by everyone@ aces. + * + * See richacl_compute_max_masks(). + */ +static unsigned int richacl_group_class_allowed(struct richacl *acl) +{ + struct richace *ace; + unsigned int everyone_allowed = 0, group_class_allowed = 0; + int had_group_ace = 0; + + richacl_for_each_entry_reverse(ace, acl) { + if (richace_is_inherit_only(ace) || + richace_is_owner(ace)) + continue; + + if (richace_is_everyone(ace)) { + if (richace_is_allow(ace)) + everyone_allowed |= ace->e_mask; + else if (richace_is_deny(ace)) + everyone_allowed &= ~ace->e_mask; + } else { + group_class_allowed |= + richacl_allowed_to_who(acl, ace); + + if (richace_is_group(ace)) + had_group_ace = 1; + } + } + /* + * If the acl doesn't contain any group@ aces, richacl_allowed_to_who() + * wasn't called for the owning group. We could make that call now, but + * we already know the result (everyone_allowed). + */ + if (!had_group_ace) + group_class_allowed |= everyone_allowed; + return group_class_allowed; +} + +/** + * richacl_compute_max_masks - compute upper bound masks + * + * Computes upper bound owner, group, and other masks so that none of the + * permissions allowed by the acl are disabled. + * + * We don't make assumptions about who the owner is so that the owner can + * change with no effect on the file masks or file mode permission bits; this + * means that we must assume that all entries can match the owner. + */ +void richacl_compute_max_masks(struct richacl *acl) +{ + unsigned int gmask = ~0; + struct richace *ace; + + /* + * @gmask contains all permissions which the group class is ever + * allowed. We use it to avoid adding permissions to the group mask + * from everyone@ allow aces which the group class is always denied + * through other aces. For example, the following acl would otherwise + * result in a group mask of rw: + * + * group@:w::deny + * everyone@:rw::allow + * + * Avoid computing @gmask for acls which do not include any group class + * deny aces: in such acls, the group class is never denied any + * permissions from everyone@ allow aces, and the group class cannot + * have fewer permissions than the other class. + */ + +restart: + acl->a_owner_mask = 0; + acl->a_group_mask = 0; + acl->a_other_mask = 0; + + richacl_for_each_entry_reverse(ace, acl) { + if (richace_is_inherit_only(ace)) + continue; + + if (richace_is_owner(ace)) { + if (richace_is_allow(ace)) + acl->a_owner_mask |= ace->e_mask; + else if (richace_is_deny(ace)) + acl->a_owner_mask &= ~ace->e_mask; + } else if (richace_is_everyone(ace)) { + if (richace_is_allow(ace)) { + acl->a_owner_mask |= ace->e_mask; + acl->a_group_mask |= ace->e_mask & gmask; + acl->a_other_mask |= ace->e_mask; + } else if (richace_is_deny(ace)) { + acl->a_owner_mask &= ~ace->e_mask; + acl->a_group_mask &= ~ace->e_mask; + acl->a_other_mask &= ~ace->e_mask; + } + } else { + if (richace_is_allow(ace)) { + acl->a_owner_mask |= ace->e_mask & gmask; + acl->a_group_mask |= ace->e_mask & gmask; + } else if (richace_is_deny(ace) && gmask == ~0) { + gmask = richacl_group_class_allowed(acl); + if (likely(gmask != ~0)) + /* should always be true */ + goto restart; + } + } + } + + acl->a_flags &= ~(RICHACL_WRITE_THROUGH | RICHACL_MASKED); +} +EXPORT_SYMBOL_GPL(richacl_compute_max_masks); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 9102ef0..3559b2c 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -178,5 +178,6 @@ extern void richace_copy(struct richace *, const struct richace *); extern int richacl_masks_to_mode(const struct richacl *); extern unsigned int richacl_mode_to_mask(umode_t); extern unsigned int richacl_want_to_mask(unsigned int); +extern void richacl_compute_max_masks(struct richacl *); #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:10:17 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 3C3DB7F37 for ; Mon, 9 Nov 2015 05:10:17 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id C095CAC006 for ; Mon, 9 Nov 2015 03:10:16 -0800 (PST) X-ASG-Debug-ID: 1447067414-04cb6c296dcc7f0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id TXT7WCr7Tmg657Gt (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:10:15 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 967DFC0AED5C; Mon, 9 Nov 2015 11:10:14 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CS028578; Mon, 9 Nov 2015 06:10:08 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 09/22] richacl: Permission check algorithm Date: Mon, 9 Nov 2015 12:08:50 +0100 X-ASG-Orig-Subj: [PATCH v15 09/22] richacl: Permission check algorithm Message-Id: <1447067343-31479-10-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067415 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 A richacl roughly grants a requested access if the NFSv4 acl in the richacl grants the requested permissions according to the NFSv4 permission check algorithm and the file mask that applies to the process includes the requested permissions. Signed-off-by: Andreas Gruenbacher Reviewed-by: "J. Bruce Fields" --- fs/Makefile | 2 +- fs/richacl_inode.c | 149 ++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 3 + 3 files changed, 153 insertions(+), 1 deletion(-) create mode 100644 fs/richacl_inode.c diff --git a/fs/Makefile b/fs/Makefile index fe3e9dd..ec665fd 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -49,7 +49,7 @@ obj-$(CONFIG_SYSCTL) += drop_caches.o obj-$(CONFIG_FHANDLE) += fhandle.o obj-$(CONFIG_FS_RICHACL) += richacl.o -richacl-y := richacl_base.o +richacl-y := richacl_base.o richacl_inode.o obj-y += quota/ diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c new file mode 100644 index 0000000..99b3c93 --- /dev/null +++ b/fs/richacl_inode.c @@ -0,0 +1,149 @@ +/* + * Copyright (C) 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include + +/** + * richacl_permission - richacl permission check algorithm + * @inode: inode to check + * @acl: rich acl of the inode + * @want: requested access (MAY_* flags) + * + * Checks if the current process is granted @mask flags in @acl. + */ +int +richacl_permission(struct inode *inode, const struct richacl *acl, + int want) +{ + const struct richace *ace; + unsigned int mask = richacl_want_to_mask(want); + unsigned int requested = mask, denied = 0; + int in_owning_group = in_group_p(inode->i_gid); + int in_owner_or_group_class = in_owning_group; + + /* + * A process is + * - in the owner file class if it owns the file, + * - in the group file class if it is in the file's owning group or + * it matches any of the user or group entries, and + * - in the other file class otherwise. + * The file class is only relevant for determining which file mask to + * apply, which only happens for masked acls. + */ + if (acl->a_flags & RICHACL_MASKED) { + if ((acl->a_flags & RICHACL_WRITE_THROUGH) && + uid_eq(current_fsuid(), inode->i_uid)) { + denied = requested & ~acl->a_owner_mask; + goto out; + } + } else { + /* + * When the acl is not masked, there is no need to determine if + * the process is in the group class and we can break out + * earlier of the loop below. + */ + in_owner_or_group_class = 1; + } + + /* + * Check if the acl grants the requested access and determine which + * file class the process is in. + */ + richacl_for_each_entry(ace, acl) { + unsigned int ace_mask = ace->e_mask; + + if (richace_is_inherit_only(ace)) + continue; + if (richace_is_owner(ace)) { + if (!uid_eq(current_fsuid(), inode->i_uid)) + continue; + goto entry_matches_owner; + } else if (richace_is_group(ace)) { + if (!in_owning_group) + continue; + } else if (richace_is_unix_user(ace)) { + if (!uid_eq(current_fsuid(), ace->e_id.uid)) + continue; + if (uid_eq(current_fsuid(), inode->i_uid)) + goto entry_matches_owner; + } else if (richace_is_unix_group(ace)) { + if (!in_group_p(ace->e_id.gid)) + continue; + } else + goto entry_matches_everyone; + + /* + * Apply the group file mask to entries other than owner@ and + * everyone@ or user entries matching the owner. This ensures + * that we grant the same permissions as the acl computed by + * richacl_apply_masks(). + * + * Without this restriction, the following richacl would grant + * rw access to processes which are both the owner and in the + * owning group, but not to other users in the owning group, + * which could not be represented without masks: + * + * owner:rw::mask + * group@:rw::allow + */ + if ((acl->a_flags & RICHACL_MASKED) && richace_is_allow(ace)) + ace_mask &= acl->a_group_mask; + +entry_matches_owner: + /* The process is in the owner or group file class. */ + in_owner_or_group_class = 1; + +entry_matches_everyone: + /* Check which mask flags the ACE allows or denies. */ + if (richace_is_deny(ace)) + denied |= ace_mask & mask; + mask &= ~ace_mask; + + /* + * Keep going until we know which file class + * the process is in. + */ + if (!mask && in_owner_or_group_class) + break; + } + denied |= mask; + + if (acl->a_flags & RICHACL_MASKED) { + /* + * The file class a process is in determines which file mask + * applies. Check if that file mask also grants the requested + * access. + */ + if (uid_eq(current_fsuid(), inode->i_uid)) + denied |= requested & ~acl->a_owner_mask; + else if (in_owner_or_group_class) + denied |= requested & ~acl->a_group_mask; + else { + if (acl->a_flags & RICHACL_WRITE_THROUGH) + denied = requested & ~acl->a_other_mask; + else + denied |= requested & ~acl->a_other_mask; + } + } + +out: + return denied ? -EACCES : 0; +} +EXPORT_SYMBOL_GPL(richacl_permission); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 3559b2c..1d9f5f7 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -180,4 +180,7 @@ extern unsigned int richacl_mode_to_mask(umode_t); extern unsigned int richacl_want_to_mask(unsigned int); extern void richacl_compute_max_masks(struct richacl *); +/* richacl_inode.c */ +extern int richacl_permission(struct inode *, const struct richacl *, int); + #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:10:23 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A99017F37 for ; Mon, 9 Nov 2015 05:10:23 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8BCAF304039 for ; Mon, 9 Nov 2015 03:10:23 -0800 (PST) X-ASG-Debug-ID: 1447067422-04cb6c296bcc7f0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Uy1CTWFBTQ8H9vjQ (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:10:22 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 0C52F8E374; Mon, 9 Nov 2015 11:10:22 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CT028578; Mon, 9 Nov 2015 06:10:15 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 10/22] posix_acl: Unexport acl_by_type and make it static Date: Mon, 9 Nov 2015 12:08:51 +0100 X-ASG-Orig-Subj: [PATCH v15 10/22] posix_acl: Unexport acl_by_type and make it static Message-Id: <1447067343-31479-11-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067422 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 acl_by_type(inode, type) returns a pointer to either inode->i_acl or inode->i_default_acl depending on type. This is useful in fs/posix_acl.c, but should never have been visible outside that file. Signed-off-by: Andreas Gruenbacher --- fs/posix_acl.c | 3 +-- include/linux/posix_acl.h | 1 - 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/fs/posix_acl.c b/fs/posix_acl.c index 4fb17de..aacfb58 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -21,7 +21,7 @@ #include #include -struct posix_acl **acl_by_type(struct inode *inode, int type) +static struct posix_acl **acl_by_type(struct inode *inode, int type) { switch (type) { case ACL_TYPE_ACCESS: @@ -32,7 +32,6 @@ struct posix_acl **acl_by_type(struct inode *inode, int type) BUG(); } } -EXPORT_SYMBOL(acl_by_type); struct posix_acl *get_cached_acl(struct inode *inode, int type) { diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index 3e96a6a..5b5a80c 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -99,7 +99,6 @@ extern int posix_acl_create(struct inode *, umode_t *, struct posix_acl **, extern int simple_set_acl(struct inode *, struct posix_acl *, int); extern int simple_acl_create(struct inode *, struct inode *); -struct posix_acl **acl_by_type(struct inode *inode, int type); struct posix_acl *get_cached_acl(struct inode *inode, int type); struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type); void set_cached_acl(struct inode *inode, int type, struct posix_acl *acl); -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:10:31 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5B0D57F37 for ; Mon, 9 Nov 2015 05:10:31 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id D0AB9AC004 for ; Mon, 9 Nov 2015 03:10:30 -0800 (PST) X-ASG-Debug-ID: 1447067428-04cbb02423d15b0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ZJhSUmWMAmmluYKl (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:10:28 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 44AF38A4BC; Mon, 9 Nov 2015 11:10:28 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CU028578; Mon, 9 Nov 2015 06:10:22 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 11/22] vfs: Cache base_acl objects in inodes Date: Mon, 9 Nov 2015 12:08:52 +0100 X-ASG-Orig-Subj: [PATCH v15 11/22] vfs: Cache base_acl objects in inodes Message-Id: <1447067343-31479-12-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067428 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 POSIX ACLs and richacls are both objects allocated by kmalloc() with a reference count which are freed by kfree_rcu(). An inode can either cache an access and a default POSIX ACL, or a richacl (richacls do not have default acls). To allow an inode to cache either of the two kinds of acls, introduce a new base_acl type and convert i_acl and i_default_acl to that type. In most cases, the vfs then doesn't care which kind of acl an inode caches (if any). Signed-off-by: Andreas Gruenbacher Reviewed-by: Andreas Dilger --- drivers/staging/lustre/lustre/llite/llite_lib.c | 2 +- fs/f2fs/acl.c | 4 +-- fs/inode.c | 4 +-- fs/jffs2/acl.c | 10 ++++-- fs/posix_acl.c | 41 +++++++++++++------------ fs/richacl_base.c | 4 +-- include/linux/fs.h | 34 ++++++++++++++++++-- include/linux/posix_acl.h | 12 +++----- include/linux/richacl.h | 9 +++--- 9 files changed, 75 insertions(+), 45 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index b4ed6c8..46912c2 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -1118,7 +1118,7 @@ void ll_clear_inode(struct inode *inode) } #ifdef CONFIG_FS_POSIX_ACL else if (lli->lli_posix_acl) { - LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) == 1); + LASSERT(base_acl_refcount(&lli->lli_posix_acl->a_base) == 1); LASSERT(lli->lli_remote_perms == NULL); posix_acl_release(lli->lli_posix_acl); lli->lli_posix_acl = NULL; diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c index c8f25f7..9646197 100644 --- a/fs/f2fs/acl.c +++ b/fs/f2fs/acl.c @@ -270,7 +270,7 @@ static struct posix_acl *f2fs_acl_clone(const struct posix_acl *acl, sizeof(struct posix_acl_entry); clone = kmemdup(acl, size, flags); if (clone) - atomic_set(&clone->a_refcount, 1); + base_acl_init(&clone->a_base); } return clone; } @@ -282,7 +282,7 @@ static int f2fs_acl_create_masq(struct posix_acl *acl, umode_t *mode_p) umode_t mode = *mode_p; int not_equiv = 0; - /* assert(atomic_read(acl->a_refcount) == 1); */ + /* assert(base_acl_refcount(&acl->a_base) == 1); */ FOREACH_ACL_ENTRY(pa, acl, pe) { switch(pa->e_tag) { diff --git a/fs/inode.c b/fs/inode.c index 78a17b8..5c46ae5 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -233,9 +233,9 @@ void __destroy_inode(struct inode *inode) #ifdef CONFIG_FS_POSIX_ACL if (inode->i_acl && inode->i_acl != ACL_NOT_CACHED) - posix_acl_release(inode->i_acl); + base_acl_put(inode->i_acl); if (inode->i_default_acl && inode->i_default_acl != ACL_NOT_CACHED) - posix_acl_release(inode->i_default_acl); + base_acl_put(inode->i_default_acl); #endif this_cpu_dec(nr_inodes); } diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c index 2f7a3c0..569cb1b 100644 --- a/fs/jffs2/acl.c +++ b/fs/jffs2/acl.c @@ -294,13 +294,19 @@ int jffs2_init_acl_post(struct inode *inode) int rc; if (inode->i_default_acl) { - rc = __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_DEFAULT, inode->i_default_acl); + struct posix_acl *default_acl = container_of( + inode->i_default_acl, struct posix_acl, a_base); + + rc = __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_DEFAULT, default_acl); if (rc) return rc; } if (inode->i_acl) { - rc = __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_ACCESS, inode->i_acl); + struct posix_acl *acl = container_of( + inode->i_acl, struct posix_acl, a_base); + + rc = __jffs2_set_acl(inode, JFFS2_XPREFIX_ACL_ACCESS, acl); if (rc) return rc; } diff --git a/fs/posix_acl.c b/fs/posix_acl.c index aacfb58..4573315 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -21,7 +21,7 @@ #include #include -static struct posix_acl **acl_by_type(struct inode *inode, int type) +static struct base_acl **acl_by_type(struct inode *inode, int type) { switch (type) { case ACL_TYPE_ACCESS: @@ -35,63 +35,64 @@ static struct posix_acl **acl_by_type(struct inode *inode, int type) struct posix_acl *get_cached_acl(struct inode *inode, int type) { - struct posix_acl **p = acl_by_type(inode, type); - struct posix_acl *acl = ACCESS_ONCE(*p); + struct base_acl **p = acl_by_type(inode, type); + struct base_acl *acl = ACCESS_ONCE(*p); if (acl) { spin_lock(&inode->i_lock); acl = *p; if (acl != ACL_NOT_CACHED) - acl = posix_acl_dup(acl); + base_acl_get(acl); spin_unlock(&inode->i_lock); } - return acl; + return container_of(acl, struct posix_acl, a_base); } EXPORT_SYMBOL(get_cached_acl); struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type) { - return rcu_dereference(*acl_by_type(inode, type)); + struct base_acl *acl = rcu_dereference(*acl_by_type(inode, type)); + return container_of(acl, struct posix_acl, a_base); } EXPORT_SYMBOL(get_cached_acl_rcu); void set_cached_acl(struct inode *inode, int type, struct posix_acl *acl) { - struct posix_acl **p = acl_by_type(inode, type); - struct posix_acl *old; + struct base_acl **p = acl_by_type(inode, type); + struct base_acl *old; spin_lock(&inode->i_lock); old = *p; - rcu_assign_pointer(*p, posix_acl_dup(acl)); + rcu_assign_pointer(*p, &posix_acl_dup(acl)->a_base); spin_unlock(&inode->i_lock); if (old != ACL_NOT_CACHED) - posix_acl_release(old); + base_acl_put(old); } EXPORT_SYMBOL(set_cached_acl); void forget_cached_acl(struct inode *inode, int type) { - struct posix_acl **p = acl_by_type(inode, type); - struct posix_acl *old; + struct base_acl **p = acl_by_type(inode, type); + struct base_acl *old; spin_lock(&inode->i_lock); old = *p; *p = ACL_NOT_CACHED; spin_unlock(&inode->i_lock); if (old != ACL_NOT_CACHED) - posix_acl_release(old); + base_acl_put(old); } EXPORT_SYMBOL(forget_cached_acl); void forget_all_cached_acls(struct inode *inode) { - struct posix_acl *old_access, *old_default; + struct base_acl *old_access, *old_default; spin_lock(&inode->i_lock); old_access = inode->i_acl; old_default = inode->i_default_acl; inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED; spin_unlock(&inode->i_lock); if (old_access != ACL_NOT_CACHED) - posix_acl_release(old_access); + base_acl_put(old_access); if (old_default != ACL_NOT_CACHED) - posix_acl_release(old_default); + base_acl_put(old_default); } EXPORT_SYMBOL(forget_all_cached_acls); @@ -128,7 +129,7 @@ EXPORT_SYMBOL(get_acl); void posix_acl_init(struct posix_acl *acl, int count) { - atomic_set(&acl->a_refcount, 1); + base_acl_init(&acl->a_base); acl->a_count = count; } EXPORT_SYMBOL(posix_acl_init); @@ -161,7 +162,7 @@ posix_acl_clone(const struct posix_acl *acl, gfp_t flags) sizeof(struct posix_acl_entry); clone = kmemdup(acl, size, flags); if (clone) - atomic_set(&clone->a_refcount, 1); + base_acl_init(&clone->a_base); } return clone; } @@ -383,7 +384,7 @@ static int posix_acl_create_masq(struct posix_acl *acl, umode_t *mode_p) umode_t mode = *mode_p; int not_equiv = 0; - /* assert(atomic_read(acl->a_refcount) == 1); */ + /* assert(base_acl_refcount(&acl->a_base) == 1); */ FOREACH_ACL_ENTRY(pa, acl, pe) { switch(pa->e_tag) { @@ -438,7 +439,7 @@ static int __posix_acl_chmod_masq(struct posix_acl *acl, umode_t mode) struct posix_acl_entry *group_obj = NULL, *mask_obj = NULL; struct posix_acl_entry *pa, *pe; - /* assert(atomic_read(acl->a_refcount) == 1); */ + /* assert(base_acl_refcount(&acl->a_base) == 1); */ FOREACH_ACL_ENTRY(pa, acl, pe) { switch(pa->e_tag) { diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 69b806c..5826842 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -33,7 +33,7 @@ richacl_alloc(int count, gfp_t gfp) struct richacl *acl = kzalloc(size, gfp); if (acl) { - atomic_set(&acl->a_refcount, 1); + base_acl_init(&acl->a_base); acl->a_count = count; } return acl; @@ -52,7 +52,7 @@ richacl_clone(const struct richacl *acl, gfp_t gfp) if (dup) { memcpy(dup, acl, size); - atomic_set(&dup->a_refcount, 1); + base_acl_init(&dup->a_base); } return dup; } diff --git a/include/linux/fs.h b/include/linux/fs.h index ba91a89..2fd840e 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -576,6 +576,12 @@ static inline void mapping_allow_writable(struct address_space *mapping) #define i_size_ordered_init(inode) do { } while (0) #endif +struct base_acl { + union { + atomic_t ba_refcount; + struct rcu_head ba_rcu; + }; +}; struct posix_acl; #define ACL_NOT_CACHED ((void *)(-1)) @@ -595,9 +601,9 @@ struct inode { kgid_t i_gid; unsigned int i_flags; -#ifdef CONFIG_FS_POSIX_ACL - struct posix_acl *i_acl; - struct posix_acl *i_default_acl; +#if defined(CONFIG_FS_POSIX_ACL) + struct base_acl *i_acl; + struct base_acl *i_default_acl; #endif const struct inode_operations *i_op; @@ -3059,4 +3065,26 @@ static inline bool dir_relax(struct inode *inode) extern bool path_noexec(const struct path *path); +static inline void base_acl_get(struct base_acl *acl) +{ + if (acl) + atomic_inc(&acl->ba_refcount); +} + +static inline void base_acl_put(struct base_acl *acl) +{ + if (acl && atomic_dec_and_test(&acl->ba_refcount)) + kfree_rcu(acl, ba_rcu); +} + +static inline void base_acl_init(struct base_acl *acl) +{ + atomic_set(&acl->ba_refcount, 1); +} + +static inline int base_acl_refcount(struct base_acl *acl) +{ + return atomic_read(&acl->ba_refcount); +} + #endif /* _LINUX_FS_H */ diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index 5b5a80c..cef5428 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -43,10 +43,7 @@ struct posix_acl_entry { }; struct posix_acl { - union { - atomic_t a_refcount; - struct rcu_head a_rcu; - }; + struct base_acl a_base; /* must be first, see posix_acl_release() */ unsigned int a_count; struct posix_acl_entry a_entries[0]; }; @@ -61,8 +58,7 @@ struct posix_acl { static inline struct posix_acl * posix_acl_dup(struct posix_acl *acl) { - if (acl) - atomic_inc(&acl->a_refcount); + base_acl_get(&acl->a_base); return acl; } @@ -72,8 +68,8 @@ posix_acl_dup(struct posix_acl *acl) static inline void posix_acl_release(struct posix_acl *acl) { - if (acl && atomic_dec_and_test(&acl->a_refcount)) - kfree_rcu(acl, a_rcu); + BUILD_BUG_ON(offsetof(struct posix_acl, a_base) != 0); + base_acl_put(&acl->a_base); } diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 1d9f5f7..7628fad 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -31,7 +31,7 @@ struct richace { }; struct richacl { - atomic_t a_refcount; + struct base_acl a_base; /* must be first, see richacl_put() */ unsigned int a_owner_mask; unsigned int a_group_mask; unsigned int a_other_mask; @@ -56,8 +56,7 @@ struct richacl { static inline struct richacl * richacl_get(struct richacl *acl) { - if (acl) - atomic_inc(&acl->a_refcount); + base_acl_get(&acl->a_base); return acl; } @@ -67,8 +66,8 @@ richacl_get(struct richacl *acl) static inline void richacl_put(struct richacl *acl) { - if (acl && atomic_dec_and_test(&acl->a_refcount)) - kfree(acl); + BUILD_BUG_ON(offsetof(struct richacl, a_base) != 0); + base_acl_put(&acl->a_base); } /** -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:10:36 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C2F357F3F for ; Mon, 9 Nov 2015 05:10:36 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id A47988F8049 for ; Mon, 9 Nov 2015 03:10:36 -0800 (PST) X-ASG-Debug-ID: 1447067435-04cb6c296bcc800001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id nAvlo8EbqORjAGJ7 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:10:35 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 2909519EF33; Mon, 9 Nov 2015 11:10:35 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CV028578; Mon, 9 Nov 2015 06:10:28 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 12/22] vfs: Add get_richacl and set_richacl inode operations Date: Mon, 9 Nov 2015 12:08:53 +0100 X-ASG-Orig-Subj: [PATCH v15 12/22] vfs: Add get_richacl and set_richacl inode operations Message-Id: <1447067343-31479-13-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067435 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 These operations are similar to the get_acl and set_acl operations for POSIX ACLs. The distinction between access and default ACLs doesn't exist for richacls. Signed-off-by: Andreas Gruenbacher --- include/linux/fs.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/fs.h b/include/linux/fs.h index 2fd840e..3c36c72 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1662,6 +1662,7 @@ struct inode_operations { const char * (*follow_link) (struct dentry *, void **); int (*permission) (struct inode *, int); struct posix_acl * (*get_acl)(struct inode *, int); + struct richacl * (*get_richacl)(struct inode *); int (*readlink) (struct dentry *, char __user *,int); void (*put_link) (struct inode *, void *); @@ -1691,6 +1692,7 @@ struct inode_operations { umode_t create_mode, int *opened); int (*tmpfile) (struct inode *, struct dentry *, umode_t); int (*set_acl)(struct inode *, struct posix_acl *, int); + int (*set_richacl)(struct inode *, struct richacl *); /* WARNING: probably going away soon, do not use! */ } ____cacheline_aligned; -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:10:44 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 046DB7F3F for ; Mon, 9 Nov 2015 05:10:44 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id C99E0304039 for ; Mon, 9 Nov 2015 03:10:43 -0800 (PST) X-ASG-Debug-ID: 1447067442-04bdf03f03cdbe0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Xehx38ncMnmVfRs1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:10:42 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 0EAFBA2C00; Mon, 9 Nov 2015 11:10:42 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CW028578; Mon, 9 Nov 2015 06:10:35 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 13/22] vfs: Cache richacl in struct inode Date: Mon, 9 Nov 2015 12:08:54 +0100 X-ASG-Orig-Subj: [PATCH v15 13/22] vfs: Cache richacl in struct inode Message-Id: <1447067343-31479-14-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067442 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Cache richacls in struct inode so that this doesn't have to be done individually in each filesystem. This is similar to POSIX ACLs. Signed-off-by: Andreas Gruenbacher --- fs/inode.c | 11 +++++-- fs/posix_acl.c | 2 +- fs/richacl_inode.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/fs.h | 5 +++- include/linux/richacl.h | 6 ++++ 5 files changed, 96 insertions(+), 5 deletions(-) diff --git a/fs/inode.c b/fs/inode.c index 5c46ae5..5e8710c 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -174,8 +174,11 @@ int inode_init_always(struct super_block *sb, struct inode *inode) inode->i_private = NULL; inode->i_mapping = mapping; INIT_HLIST_HEAD(&inode->i_dentry); /* buggered by rcu freeing */ -#ifdef CONFIG_FS_POSIX_ACL - inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED; +#if defined(CONFIG_FS_POSIX_ACL) || defined(CONFIG_FS_RICHACL) + inode->i_acl = ACL_NOT_CACHED; +# if defined(CONFIG_FS_POSIX_ACL) + inode->i_default_acl = ACL_NOT_CACHED; +# endif #endif #ifdef CONFIG_FSNOTIFY @@ -231,11 +234,13 @@ void __destroy_inode(struct inode *inode) atomic_long_dec(&inode->i_sb->s_remove_count); } -#ifdef CONFIG_FS_POSIX_ACL +#if defined(CONFIG_FS_POSIX_ACL) || defined(CONFIG_FS_RICHACL) if (inode->i_acl && inode->i_acl != ACL_NOT_CACHED) base_acl_put(inode->i_acl); +# if defined(CONFIG_FS_POSIX_ACL) if (inode->i_default_acl && inode->i_default_acl != ACL_NOT_CACHED) base_acl_put(inode->i_default_acl); +# endif #endif this_cpu_dec(nr_inodes); } diff --git a/fs/posix_acl.c b/fs/posix_acl.c index 4573315..b0eb1dc 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -37,7 +37,7 @@ struct posix_acl *get_cached_acl(struct inode *inode, int type) { struct base_acl **p = acl_by_type(inode, type); struct base_acl *acl = ACCESS_ONCE(*p); - if (acl) { + if (acl && IS_POSIXACL(inode)) { spin_lock(&inode->i_lock); acl = *p; if (acl != ACL_NOT_CACHED) diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index 99b3c93..52c1595 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -20,6 +20,83 @@ #include #include +struct richacl *get_cached_richacl(struct inode *inode) +{ + struct base_acl *acl; + + acl = ACCESS_ONCE(inode->i_acl); + if (acl && IS_RICHACL(inode)) { + spin_lock(&inode->i_lock); + acl = inode->i_acl; + if (acl != ACL_NOT_CACHED) + base_acl_get(acl); + spin_unlock(&inode->i_lock); + } + return container_of(acl, struct richacl, a_base); +} +EXPORT_SYMBOL_GPL(get_cached_richacl); + +struct richacl *get_cached_richacl_rcu(struct inode *inode) +{ + struct base_acl *acl = rcu_dereference(inode->i_acl); + + return container_of(acl, struct richacl, a_base); +} +EXPORT_SYMBOL_GPL(get_cached_richacl_rcu); + +void set_cached_richacl(struct inode *inode, struct richacl *acl) +{ + struct base_acl *old = NULL; + + spin_lock(&inode->i_lock); + old = inode->i_acl; + rcu_assign_pointer(inode->i_acl, &richacl_get(acl)->a_base); + spin_unlock(&inode->i_lock); + if (old != ACL_NOT_CACHED) + base_acl_put(old); +} +EXPORT_SYMBOL_GPL(set_cached_richacl); + +void forget_cached_richacl(struct inode *inode) +{ + struct base_acl *old = NULL; + + spin_lock(&inode->i_lock); + old = inode->i_acl; + inode->i_acl = ACL_NOT_CACHED; + spin_unlock(&inode->i_lock); + if (old != ACL_NOT_CACHED) + base_acl_put(old); +} +EXPORT_SYMBOL_GPL(forget_cached_richacl); + +struct richacl *get_richacl(struct inode *inode) +{ + struct richacl *acl; + + acl = get_cached_richacl(inode); + if (acl != ACL_NOT_CACHED) + return acl; + + if (!IS_RICHACL(inode)) + return NULL; + + /* + * A filesystem can force a ACL callback by just never filling the + * ACL cache. But normally you'd fill the cache either at inode + * instantiation time, or on the first ->get_richacl call. + * + * If the filesystem doesn't have a get_richacl() function at all, + * we'll just create the negative cache entry. + */ + if (!inode->i_op->get_richacl) { + set_cached_richacl(inode, NULL); + return NULL; + } + return inode->i_op->get_richacl(inode); +} +EXPORT_SYMBOL_GPL(get_richacl); + /** * richacl_permission - richacl permission check algorithm * @inode: inode to check diff --git a/include/linux/fs.h b/include/linux/fs.h index 3c36c72..05fb943 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -583,6 +583,7 @@ struct base_acl { }; }; struct posix_acl; +struct richacl; #define ACL_NOT_CACHED ((void *)(-1)) #define IOP_FASTPERM 0x0001 @@ -601,9 +602,11 @@ struct inode { kgid_t i_gid; unsigned int i_flags; -#if defined(CONFIG_FS_POSIX_ACL) +#if defined(CONFIG_FS_POSIX_ACL) || defined(CONFIG_FS_RICHACL) struct base_acl *i_acl; +# if defined(CONFIG_FS_POSIX_ACL) struct base_acl *i_default_acl; +# endif #endif const struct inode_operations *i_op; diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 7628fad..7bf912b6 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -70,6 +70,12 @@ richacl_put(struct richacl *acl) base_acl_put(&acl->a_base); } +extern struct richacl *get_cached_richacl(struct inode *); +extern struct richacl *get_cached_richacl_rcu(struct inode *); +extern void set_cached_richacl(struct inode *, struct richacl *); +extern void forget_cached_richacl(struct inode *); +extern struct richacl *get_richacl(struct inode *); + /** * richace_is_owner - check if @ace is an OWNER@ entry */ -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:10:50 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B072C7F8B for ; Mon, 9 Nov 2015 05:10:50 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 78DAD304043 for ; Mon, 9 Nov 2015 03:10:50 -0800 (PST) X-ASG-Debug-ID: 1447067449-04bdf03f04cdc00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 8laqK9xp8PjlzijA (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:10:49 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id EB7518F265; Mon, 9 Nov 2015 11:10:48 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CX028578; Mon, 9 Nov 2015 06:10:42 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 14/22] richacl: Update the file masks in chmod() Date: Mon, 9 Nov 2015 12:08:55 +0100 X-ASG-Orig-Subj: [PATCH v15 14/22] richacl: Update the file masks in chmod() Message-Id: <1447067343-31479-15-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067449 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Doing a chmod() sets the file mode, which includes the file permission bits. When a file has a richacl, the permissions that the richacl grants need to be limited to what the new file permission bits allow. This is done by setting the file masks in the richacl to what the file permission bits map to. The richacl access check algorithm takes the file masks into account, which ensures that the richacl cannot grant too many permissions. It is possible to explicitly add permissions to the file masks which go beyond what the file permission bits can grant (like the RICHACE_WRITE_ACL permission). The POSIX.1 standard calls this an alternate file access control mechanism. A subsequent chmod() would ensure that those permissions are disabled again. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 42 ++++++++++++++++++++++++++++++++++++++++++ fs/richacl_inode.c | 30 ++++++++++++++++++++++++++++++ include/linux/richacl.h | 2 ++ 3 files changed, 74 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 5826842..e4dd779 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -340,3 +340,45 @@ restart: acl->a_flags &= ~(RICHACL_WRITE_THROUGH | RICHACL_MASKED); } EXPORT_SYMBOL_GPL(richacl_compute_max_masks); + +/** + * __richacl_chmod - update the file masks to reflect the new mode + * @acl: access control list + * @mode: new file permission bits including the file type + * + * Return a copy of @acl where the file masks have been replaced by the file + * masks corresponding to the file permission bits in @mode, or returns @acl + * itself if the file masks are already up to date. Takes over a reference + * to @acl. + */ +struct richacl * +__richacl_chmod(struct richacl *acl, umode_t mode) +{ + unsigned int x = S_ISDIR(mode) ? 0 : RICHACE_DELETE_CHILD; + unsigned int owner_mask, group_mask, other_mask; + struct richacl *clone; + + owner_mask = richacl_mode_to_mask(mode >> 6) & ~x; + group_mask = richacl_mode_to_mask(mode >> 3) & ~x; + other_mask = richacl_mode_to_mask(mode) & ~x; + + if (acl->a_owner_mask == owner_mask && + acl->a_group_mask == group_mask && + acl->a_other_mask == other_mask && + (acl->a_flags & RICHACL_MASKED) && + (acl->a_flags & RICHACL_WRITE_THROUGH)) + return acl; + + clone = richacl_clone(acl, GFP_KERNEL); + richacl_put(acl); + if (!clone) + return ERR_PTR(-ENOMEM); + + clone->a_flags |= (RICHACL_WRITE_THROUGH | RICHACL_MASKED); + clone->a_owner_mask = owner_mask; + clone->a_group_mask = group_mask; + clone->a_other_mask = other_mask; + + return clone; +} +EXPORT_SYMBOL_GPL(__richacl_chmod); diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index 52c1595..e329826 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -224,3 +224,33 @@ out: return denied ? -EACCES : 0; } EXPORT_SYMBOL_GPL(richacl_permission); + +/** + * richacl_chmod - filesystem chmod helper + * @inode: inode whose file permission bits to change + * @mode: new file permission bits including the file type + * + * Helper for filesystems to use to perform a chmod on the richacl of an inode. + */ +int +richacl_chmod(struct inode *inode, umode_t mode) +{ + struct richacl *acl; + int retval; + + if (S_ISLNK(mode)) + return -EOPNOTSUPP; + if (!inode->i_op->set_richacl) + return -EOPNOTSUPP; + acl = get_richacl(inode); + if (IS_ERR_OR_NULL(acl)) + return PTR_ERR(acl); + acl = __richacl_chmod(acl, mode); + if (IS_ERR(acl)) + return PTR_ERR(acl); + retval = inode->i_op->set_richacl(inode, acl); + richacl_put(acl); + + return retval; +} +EXPORT_SYMBOL(richacl_chmod); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index 7bf912b6..a2d5600 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -184,8 +184,10 @@ extern int richacl_masks_to_mode(const struct richacl *); extern unsigned int richacl_mode_to_mask(umode_t); extern unsigned int richacl_want_to_mask(unsigned int); extern void richacl_compute_max_masks(struct richacl *); +extern struct richacl *__richacl_chmod(struct richacl *, umode_t); /* richacl_inode.c */ extern int richacl_permission(struct inode *, const struct richacl *, int); +extern int richacl_chmod(struct inode *, umode_t); #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:10:57 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 92D7F7F60 for ; Mon, 9 Nov 2015 05:10:57 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 56B858F8049 for ; Mon, 9 Nov 2015 03:10:57 -0800 (PST) X-ASG-Debug-ID: 1447067455-04bdf03f03cdc00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id xzdiaSE5S4nbc9OB (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:10:56 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id C864EA4519; Mon, 9 Nov 2015 11:10:55 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CY028578; Mon, 9 Nov 2015 06:10:49 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 15/22] richacl: Check if an acl is equivalent to a file mode Date: Mon, 9 Nov 2015 12:08:56 +0100 X-ASG-Orig-Subj: [PATCH v15 15/22] richacl: Check if an acl is equivalent to a file mode Message-Id: <1447067343-31479-16-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067456 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 ACLs are considered equivalent to file modes if they only consist of owner@, group@, and everyone@ entries, the owner@ permissions do not depend on whether the owner is a member in the owning group, and no inheritance flags are set. This test is used to avoid storing richacls if the acl can be computed from the file permission bits. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 104 ++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 1 + 2 files changed, 105 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index e4dd779..74e5cb5 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -382,3 +382,107 @@ __richacl_chmod(struct richacl *acl, umode_t mode) return clone; } EXPORT_SYMBOL_GPL(__richacl_chmod); + +/** + * richacl_equiv_mode - compute the mode equivalent of @acl + * + * An acl is considered equivalent to a file mode if it only consists of + * owner@, group@, and everyone@ entries and the owner@ permissions do not + * depend on whether the owner is a member in the owning group. + */ +int +richacl_equiv_mode(const struct richacl *acl, umode_t *mode_p) +{ + umode_t mode = *mode_p; + + /* + * The RICHACE_DELETE_CHILD flag is meaningless for non-directories, so + * we ignore it. + */ + unsigned int x = S_ISDIR(mode) ? 0 : RICHACE_DELETE_CHILD; + struct { + unsigned int allowed; + unsigned int defined; /* allowed or denied */ + } owner = { + .defined = RICHACE_POSIX_ALWAYS_ALLOWED | + RICHACE_POSIX_OWNER_ALLOWED | x, + }, group = { + .defined = RICHACE_POSIX_ALWAYS_ALLOWED | x, + }, everyone = { + .defined = RICHACE_POSIX_ALWAYS_ALLOWED | x, + }; + const struct richace *ace; + + if (acl->a_flags & ~(RICHACL_WRITE_THROUGH | RICHACL_MASKED)) + return -1; + + richacl_for_each_entry(ace, acl) { + if (ace->e_flags & ~RICHACE_SPECIAL_WHO) + return -1; + + if (richace_is_owner(ace) || richace_is_everyone(ace)) { + x = ace->e_mask & ~owner.defined; + if (richace_is_allow(ace)) { + unsigned int group_denied = + group.defined & ~group.allowed; + + if (x & group_denied) + return -1; + owner.allowed |= x; + } else /* if (richace_is_deny(ace)) */ { + if (x & group.allowed) + return -1; + } + owner.defined |= x; + + if (richace_is_everyone(ace)) { + x = ace->e_mask; + if (richace_is_allow(ace)) { + group.allowed |= + x & ~group.defined; + everyone.allowed |= + x & ~everyone.defined; + } + group.defined |= x; + everyone.defined |= x; + } + } else if (richace_is_group(ace)) { + x = ace->e_mask & ~group.defined; + if (richace_is_allow(ace)) + group.allowed |= x; + group.defined |= x; + } else + return -1; + } + + if (group.allowed & ~owner.defined) + return -1; + + if (acl->a_flags & RICHACL_MASKED) { + if (acl->a_flags & RICHACL_WRITE_THROUGH) { + owner.allowed = acl->a_owner_mask; + everyone.allowed = acl->a_other_mask; + } else { + owner.allowed &= acl->a_owner_mask; + everyone.allowed &= acl->a_other_mask; + } + group.allowed &= acl->a_group_mask; + } + + mode = (mode & ~S_IRWXUGO) | + (richacl_mask_to_mode(owner.allowed) << 6) | + (richacl_mask_to_mode(group.allowed) << 3) | + richacl_mask_to_mode(everyone.allowed); + + /* Mask flags we can ignore */ + x = S_ISDIR(mode) ? 0 : RICHACE_DELETE_CHILD; + + if (((richacl_mode_to_mask(mode >> 6) ^ owner.allowed) & ~x) || + ((richacl_mode_to_mask(mode >> 3) ^ group.allowed) & ~x) || + ((richacl_mode_to_mask(mode) ^ everyone.allowed) & ~x)) + return -1; + + *mode_p = mode; + return 0; +} +EXPORT_SYMBOL_GPL(richacl_equiv_mode); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index a2d5600..b7128bf 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -185,6 +185,7 @@ extern unsigned int richacl_mode_to_mask(umode_t); extern unsigned int richacl_want_to_mask(unsigned int); extern void richacl_compute_max_masks(struct richacl *); extern struct richacl *__richacl_chmod(struct richacl *, umode_t); +extern int richacl_equiv_mode(const struct richacl *, umode_t *); /* richacl_inode.c */ extern int richacl_permission(struct inode *, const struct richacl *, int); -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:11:05 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 60EDF7F6D for ; Mon, 9 Nov 2015 05:11:05 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id D47E9AC004 for ; Mon, 9 Nov 2015 03:11:04 -0800 (PST) X-ASG-Debug-ID: 1447067462-04cbb02424d15f0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id shaPAWWHSHkKEwjL (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:11:03 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id B74878F4FD; Mon, 9 Nov 2015 11:11:02 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94CZ028578; Mon, 9 Nov 2015 06:10:56 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 16/22] richacl: Create-time inheritance Date: Mon, 9 Nov 2015 12:08:57 +0100 X-ASG-Orig-Subj: [PATCH v15 16/22] richacl: Create-time inheritance Message-Id: <1447067343-31479-17-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067463 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 When a new file is created, it can inherit an acl from its parent directory; this is similar to how default acls work in POSIX (draft) ACLs. As with POSIX ACLs, if a file inherits an acl from its parent directory, the intersection between the create mode and the permissions granted by the inherited acl determines the file masks and file permission bits, and the umask is ignored. Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++ fs/richacl_inode.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl.h | 2 ++ 3 files changed, 140 insertions(+) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 74e5cb5..3753216 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -486,3 +486,71 @@ richacl_equiv_mode(const struct richacl *acl, umode_t *mode_p) return 0; } EXPORT_SYMBOL_GPL(richacl_equiv_mode); + +/** + * richacl_inherit - compute the inherited acl of a new file + * @dir_acl: acl of the containing directory + * @isdir: inherit by a directory or non-directory? + * + * A directory can have acl entries which files and/or directories created + * inside the directory will inherit. This function computes the acl for such + * a new file. If there is no inheritable acl, it will return %NULL. + */ +struct richacl * +richacl_inherit(const struct richacl *dir_acl, int isdir) +{ + const struct richace *dir_ace; + struct richacl *acl = NULL; + struct richace *ace; + int count = 0; + + if (isdir) { + richacl_for_each_entry(dir_ace, dir_acl) { + if (!richace_is_inheritable(dir_ace)) + continue; + count++; + } + if (!count) + return NULL; + acl = richacl_alloc(count, GFP_KERNEL); + if (!acl) + return ERR_PTR(-ENOMEM); + ace = acl->a_entries; + richacl_for_each_entry(dir_ace, dir_acl) { + if (!richace_is_inheritable(dir_ace)) + continue; + richace_copy(ace, dir_ace); + if (dir_ace->e_flags & RICHACE_NO_PROPAGATE_INHERIT_ACE) + ace->e_flags &= ~RICHACE_INHERITANCE_FLAGS; + else if (!(dir_ace->e_flags & RICHACE_DIRECTORY_INHERIT_ACE)) + ace->e_flags |= RICHACE_INHERIT_ONLY_ACE; + ace++; + } + } else { + richacl_for_each_entry(dir_ace, dir_acl) { + if (!(dir_ace->e_flags & RICHACE_FILE_INHERIT_ACE)) + continue; + count++; + } + if (!count) + return NULL; + acl = richacl_alloc(count, GFP_KERNEL); + if (!acl) + return ERR_PTR(-ENOMEM); + ace = acl->a_entries; + richacl_for_each_entry(dir_ace, dir_acl) { + if (!(dir_ace->e_flags & RICHACE_FILE_INHERIT_ACE)) + continue; + richace_copy(ace, dir_ace); + ace->e_flags &= ~RICHACE_INHERITANCE_FLAGS; + /* + * RICHACE_DELETE_CHILD is meaningless for + * non-directories, so clear it. + */ + ace->e_mask &= ~RICHACE_DELETE_CHILD; + ace++; + } + } + + return acl; +} diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index e329826..ec3d2c8 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -254,3 +254,73 @@ richacl_chmod(struct inode *inode, umode_t mode) return retval; } EXPORT_SYMBOL(richacl_chmod); + +/* + * richacl_inherit_inode - compute inherited acl and file mode + * @dir_acl: acl of the containing directory + * @mode_p: mode of the new inode + * + * The file permission bits in @mode_p must be set to the create mode by the + * caller. + * + * If there is an inheritable acl, the maximum permissions that the acl grants + * are computed and the file masks of the new acl are set accordingly. + */ +static struct richacl * +richacl_inherit_inode(const struct richacl *dir_acl, umode_t *mode_p) +{ + struct richacl *acl; + umode_t mode = *mode_p; + + acl = richacl_inherit(dir_acl, S_ISDIR(mode)); + if (acl) { + if (richacl_equiv_mode(acl, &mode) == 0) { + *mode_p &= mode; + richacl_put(acl); + acl = NULL; + } else { + richacl_compute_max_masks(acl); + /* + * Ensure that the acl will not grant any permissions + * beyond the create mode. + */ + acl->a_flags |= RICHACL_MASKED; + acl->a_owner_mask &= + richacl_mode_to_mask(mode >> 6); + acl->a_group_mask &= + richacl_mode_to_mask(mode >> 3); + acl->a_other_mask &= + richacl_mode_to_mask(mode); + } + } else + *mode_p &= ~current_umask(); + + return acl; +} + +/** + * richacl_create - filesystem create helper + * @mode_p: mode of the new inode + * @dir: containing directory + * + * Compute the inherited acl for a new inode. If there is no acl to inherit, + * apply the umask. Use when creating a new inode on a richacl enabled file + * system. + */ +struct richacl *richacl_create(umode_t *mode_p, struct inode *dir) +{ + struct richacl *dir_acl, *acl = NULL; + + if (S_ISLNK(*mode_p)) + return NULL; + dir_acl = get_richacl(dir); + if (dir_acl) { + if (IS_ERR(dir_acl)) + return dir_acl; + acl = richacl_inherit_inode(dir_acl, mode_p); + richacl_put(dir_acl); + } else + *mode_p &= ~current_umask(); + return acl; +} +EXPORT_SYMBOL_GPL(richacl_create); diff --git a/include/linux/richacl.h b/include/linux/richacl.h index b7128bf..c8fae91a 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -186,9 +186,11 @@ extern unsigned int richacl_want_to_mask(unsigned int); extern void richacl_compute_max_masks(struct richacl *); extern struct richacl *__richacl_chmod(struct richacl *, umode_t); extern int richacl_equiv_mode(const struct richacl *, umode_t *); +extern struct richacl *richacl_inherit(const struct richacl *, int); /* richacl_inode.c */ extern int richacl_permission(struct inode *, const struct richacl *, int); extern int richacl_chmod(struct inode *, umode_t); +extern struct richacl *richacl_create(umode_t *, struct inode *); #endif /* __RICHACL_H */ -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:11:12 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 27FF47F60 for ; Mon, 9 Nov 2015 05:11:12 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id DF8C38F804B for ; Mon, 9 Nov 2015 03:11:11 -0800 (PST) X-ASG-Debug-ID: 1447067469-04bdf03f04cdc10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id kye28OYYFyK4Fo3C (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:11:09 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 948B78F277; Mon, 9 Nov 2015 11:11:09 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94Ca028578; Mon, 9 Nov 2015 06:11:03 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 17/22] richacl: Automatic Inheritance Date: Mon, 9 Nov 2015 12:08:58 +0100 X-ASG-Orig-Subj: [PATCH v15 17/22] richacl: Automatic Inheritance Message-Id: <1447067343-31479-18-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067469 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Automatic Inheritance (AI) allows changes to the acl of a directory to propagate down to children. This is mostly implemented in user space: when a process changes the permissions of a directory and Automatic Inheritance is enabled for that directory, the process must propagate those changes to all children, recursively. The kernel enables this by keeping track of which permissions have been inherited at create time. In addition, it makes sure that permission propagation is turned off when the permissions are set explicitly (for example, upon create or chmod). Automatic Inheritance works as follows: - When the RICHACL_AUTO_INHERIT flag in the acl of a file or directory is not set, the file or directory is not affected by AI. - When the RICHACL_AUTO_INHERIT flag in the acl of a directory is set and a file or subdirectory is created in that directory, the inherited acl will have the RICHACL_AUTO_INHERIT flag set, and all inherited aces will have the RICHACE_INHERITED_ACE flag set. This allows user space to distinguish between aces which have been inherited and aces which have been explicitly added. - When the RICHACL_PROTECTED acl flag in the acl of a file or directory is set, AI will not modify the acl. This does not affect propagation of permissions from the file to its children (if the file is a directory). Linux does not have a way of creating files or directories without setting the file permission bits, so all files created inside a directory with RICHACL_AUTO_INHERIT set will have the RICHACL_PROTECTED flag set. This effectively disables Automatic Inheritance. Protocols which support creating files without specifying permissions can explicitly clear the RICHACL_PROTECTED flag after creating a file and reset the file masks to "undo" applying the create mode; see richacl_compute_max_masks(). They should set the RICHACL_DEFAULTED flag. (A mechanism that would allow to indicate to the kernel to ignore the create mode in the first place when there are inherited permissions would be nice to have.) Signed-off-by: Andreas Gruenbacher Reviewed-by: J. Bruce Fields --- fs/richacl_base.c | 10 +++++++++- fs/richacl_inode.c | 7 +++++++ include/linux/richacl.h | 12 ++++++++++++ include/uapi/linux/richacl.h | 11 ++++++++++- 4 files changed, 38 insertions(+), 2 deletions(-) diff --git a/fs/richacl_base.c b/fs/richacl_base.c index 3753216..b67280d 100644 --- a/fs/richacl_base.c +++ b/fs/richacl_base.c @@ -366,7 +366,8 @@ __richacl_chmod(struct richacl *acl, umode_t mode) acl->a_group_mask == group_mask && acl->a_other_mask == other_mask && (acl->a_flags & RICHACL_MASKED) && - (acl->a_flags & RICHACL_WRITE_THROUGH)) + (acl->a_flags & RICHACL_WRITE_THROUGH) && + (!richacl_is_auto_inherit(acl) || richacl_is_protected(acl))) return acl; clone = richacl_clone(acl, GFP_KERNEL); @@ -378,6 +379,8 @@ __richacl_chmod(struct richacl *acl, umode_t mode) clone->a_owner_mask = owner_mask; clone->a_group_mask = group_mask; clone->a_other_mask = other_mask; + if (richacl_is_auto_inherit(clone)) + clone->a_flags |= RICHACL_PROTECTED; return clone; } @@ -551,6 +554,11 @@ richacl_inherit(const struct richacl *dir_acl, int isdir) ace++; } } + if (richacl_is_auto_inherit(dir_acl)) { + acl->a_flags = RICHACL_AUTO_INHERIT; + richacl_for_each_entry(ace, acl) + ace->e_flags |= RICHACE_INHERITED_ACE; + } return acl; } diff --git a/fs/richacl_inode.c b/fs/richacl_inode.c index ec3d2c8..99a1ab6 100644 --- a/fs/richacl_inode.c +++ b/fs/richacl_inode.c @@ -279,6 +279,13 @@ richacl_inherit_inode(const struct richacl *dir_acl, umode_t *mode_p) richacl_put(acl); acl = NULL; } else { + /* + * We need to set RICHACL_PROTECTED because we are + * doing an implicit chmod + */ + if (richacl_is_auto_inherit(acl)) + acl->a_flags |= RICHACL_PROTECTED; + richacl_compute_max_masks(acl); /* * Ensure that the acl will not grant any permissions diff --git a/include/linux/richacl.h b/include/linux/richacl.h index c8fae91a..c524a4b 100644 --- a/include/linux/richacl.h +++ b/include/linux/richacl.h @@ -76,6 +76,18 @@ extern void set_cached_richacl(struct inode *, struct richacl *); extern void forget_cached_richacl(struct inode *); extern struct richacl *get_richacl(struct inode *); +static inline int +richacl_is_auto_inherit(const struct richacl *acl) +{ + return acl->a_flags & RICHACL_AUTO_INHERIT; +} + +static inline int +richacl_is_protected(const struct richacl *acl) +{ + return acl->a_flags & RICHACL_PROTECTED; +} + /** * richace_is_owner - check if @ace is an OWNER@ entry */ diff --git a/include/uapi/linux/richacl.h b/include/uapi/linux/richacl.h index 1ed48ac..8849a53 100644 --- a/include/uapi/linux/richacl.h +++ b/include/uapi/linux/richacl.h @@ -18,6 +18,9 @@ #define __UAPI_RICHACL_H /* a_flags values */ +#define RICHACL_AUTO_INHERIT 0x01 +#define RICHACL_PROTECTED 0x02 +#define RICHACL_DEFAULTED 0x04 #define RICHACL_WRITE_THROUGH 0x40 #define RICHACL_MASKED 0x80 @@ -31,6 +34,7 @@ #define RICHACE_NO_PROPAGATE_INHERIT_ACE 0x0004 #define RICHACE_INHERIT_ONLY_ACE 0x0008 #define RICHACE_IDENTIFIER_GROUP 0x0040 +#define RICHACE_INHERITED_ACE 0x0080 #define RICHACE_SPECIAL_WHO 0x4000 /* e_mask bitflags */ @@ -60,6 +64,9 @@ #define RICHACE_EVERYONE_SPECIAL_ID 2 #define RICHACL_VALID_FLAGS ( \ + RICHACL_AUTO_INHERIT | \ + RICHACL_PROTECTED | \ + RICHACL_DEFAULTED | \ RICHACL_WRITE_THROUGH | \ RICHACL_MASKED ) @@ -69,13 +76,15 @@ RICHACE_NO_PROPAGATE_INHERIT_ACE | \ RICHACE_INHERIT_ONLY_ACE | \ RICHACE_IDENTIFIER_GROUP | \ + RICHACE_INHERITED_ACE | \ RICHACE_SPECIAL_WHO ) #define RICHACE_INHERITANCE_FLAGS ( \ RICHACE_FILE_INHERIT_ACE | \ RICHACE_DIRECTORY_INHERIT_ACE | \ RICHACE_NO_PROPAGATE_INHERIT_ACE | \ - RICHACE_INHERIT_ONLY_ACE ) + RICHACE_INHERIT_ONLY_ACE | \ + RICHACE_INHERITED_ACE ) /* Valid RICHACE_* flags for directories and non-directories */ #define RICHACE_VALID_MASK ( \ -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:11:19 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 400D87F3F for ; Mon, 9 Nov 2015 05:11:19 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 21238304032 for ; Mon, 9 Nov 2015 03:11:19 -0800 (PST) X-ASG-Debug-ID: 1447067476-04cb6c296acc830001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id JQshDxHezDYZ2GdP (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:11:17 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 7EBCF19F236; Mon, 9 Nov 2015 11:11:16 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94Cb028578; Mon, 9 Nov 2015 06:11:10 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 18/22] richacl: xattr mapping functions Date: Mon, 9 Nov 2015 12:08:59 +0100 X-ASG-Orig-Subj: [PATCH v15 18/22] richacl: xattr mapping functions Message-Id: <1447067343-31479-19-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067477 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Map between "system.richacl" xattrs and the in-kernel representation. Signed-off-by: Andreas Gruenbacher --- fs/Makefile | 2 +- fs/richacl_xattr.c | 220 +++++++++++++++++++++++++++++++++++++ fs/xattr.c | 34 +++++- include/linux/richacl_xattr.h | 42 +++++++ include/uapi/linux/Kbuild | 1 + include/uapi/linux/richacl_xattr.h | 44 ++++++++ include/uapi/linux/xattr.h | 2 + 7 files changed, 338 insertions(+), 7 deletions(-) create mode 100644 fs/richacl_xattr.c create mode 100644 include/linux/richacl_xattr.h create mode 100644 include/uapi/linux/richacl_xattr.h diff --git a/fs/Makefile b/fs/Makefile index ec665fd..35e640d 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -49,7 +49,7 @@ obj-$(CONFIG_SYSCTL) += drop_caches.o obj-$(CONFIG_FHANDLE) += fhandle.o obj-$(CONFIG_FS_RICHACL) += richacl.o -richacl-y := richacl_base.o richacl_inode.o +richacl-y := richacl_base.o richacl_inode.o richacl_xattr.o obj-y += quota/ diff --git a/fs/richacl_xattr.c b/fs/richacl_xattr.c new file mode 100644 index 0000000..38473b6 --- /dev/null +++ b/fs/richacl_xattr.c @@ -0,0 +1,220 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include + +MODULE_LICENSE("GPL"); + +/** + * richacl_from_xattr - convert a richacl xattr into the in-memory representation + */ +struct richacl * +richacl_from_xattr(struct user_namespace *user_ns, + const void *value, size_t size) +{ + const struct richacl_xattr *xattr_acl = value; + const struct richace_xattr *xattr_ace = (void *)(xattr_acl + 1); + struct richacl *acl; + struct richace *ace; + int count; + + if (size < sizeof(*xattr_acl) || + xattr_acl->a_version != RICHACL_XATTR_VERSION || + (xattr_acl->a_flags & ~RICHACL_VALID_FLAGS)) + return ERR_PTR(-EINVAL); + size -= sizeof(*xattr_acl); + count = le16_to_cpu(xattr_acl->a_count); + if (count > RICHACL_XATTR_MAX_COUNT) + return ERR_PTR(-EINVAL); + if (size != count * sizeof(*xattr_ace)) + return ERR_PTR(-EINVAL); + + acl = richacl_alloc(count, GFP_NOFS); + if (!acl) + return ERR_PTR(-ENOMEM); + + acl->a_flags = xattr_acl->a_flags; + acl->a_owner_mask = le32_to_cpu(xattr_acl->a_owner_mask); + if (acl->a_owner_mask & ~RICHACE_VALID_MASK) + goto fail_einval; + acl->a_group_mask = le32_to_cpu(xattr_acl->a_group_mask); + if (acl->a_group_mask & ~RICHACE_VALID_MASK) + goto fail_einval; + acl->a_other_mask = le32_to_cpu(xattr_acl->a_other_mask); + if (acl->a_other_mask & ~RICHACE_VALID_MASK) + goto fail_einval; + + richacl_for_each_entry(ace, acl) { + ace->e_type = le16_to_cpu(xattr_ace->e_type); + ace->e_flags = le16_to_cpu(xattr_ace->e_flags); + ace->e_mask = le32_to_cpu(xattr_ace->e_mask); + + if (ace->e_flags & ~RICHACE_VALID_FLAGS) + goto fail_einval; + if (ace->e_flags & RICHACE_SPECIAL_WHO) { + ace->e_id.special = le32_to_cpu(xattr_ace->e_id); + if (ace->e_id.special > RICHACE_EVERYONE_SPECIAL_ID) + goto fail_einval; + } else if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) { + u32 id = le32_to_cpu(xattr_ace->e_id); + + ace->e_id.gid = make_kgid(user_ns, id); + if (!gid_valid(ace->e_id.gid)) + goto fail_einval; + } else { + u32 id = le32_to_cpu(xattr_ace->e_id); + + ace->e_id.uid = make_kuid(user_ns, id); + if (!uid_valid(ace->e_id.uid)) + goto fail_einval; + } + if (ace->e_type > RICHACE_ACCESS_DENIED_ACE_TYPE || + (ace->e_mask & ~RICHACE_VALID_MASK)) + goto fail_einval; + + xattr_ace++; + } + + return acl; + +fail_einval: + richacl_put(acl); + return ERR_PTR(-EINVAL); +} +EXPORT_SYMBOL_GPL(richacl_from_xattr); + +/** + * richacl_xattr_size - compute the size of the xattr representation of @acl + */ +size_t +richacl_xattr_size(const struct richacl *acl) +{ + size_t size = sizeof(struct richacl_xattr); + + size += sizeof(struct richace_xattr) * acl->a_count; + return size; +} +EXPORT_SYMBOL_GPL(richacl_xattr_size); + +/** + * richacl_to_xattr - convert @acl into its xattr representation + * @acl: the richacl to convert + * @buffer: buffer for the result + * @size: size of @buffer + */ +int +richacl_to_xattr(struct user_namespace *user_ns, + const struct richacl *acl, void *buffer, size_t size) +{ + struct richacl_xattr *xattr_acl = buffer; + struct richace_xattr *xattr_ace; + const struct richace *ace; + size_t real_size; + + real_size = richacl_xattr_size(acl); + if (!buffer) + return real_size; + if (real_size > size) + return -ERANGE; + + xattr_acl->a_version = RICHACL_XATTR_VERSION; + xattr_acl->a_flags = acl->a_flags; + xattr_acl->a_count = cpu_to_le16(acl->a_count); + + xattr_acl->a_owner_mask = cpu_to_le32(acl->a_owner_mask); + xattr_acl->a_group_mask = cpu_to_le32(acl->a_group_mask); + xattr_acl->a_other_mask = cpu_to_le32(acl->a_other_mask); + + xattr_ace = (void *)(xattr_acl + 1); + richacl_for_each_entry(ace, acl) { + xattr_ace->e_type = cpu_to_le16(ace->e_type); + xattr_ace->e_flags = cpu_to_le16(ace->e_flags); + xattr_ace->e_mask = cpu_to_le32(ace->e_mask); + if (ace->e_flags & RICHACE_SPECIAL_WHO) + xattr_ace->e_id = cpu_to_le32(ace->e_id.special); + else if (ace->e_flags & RICHACE_IDENTIFIER_GROUP) + xattr_ace->e_id = + cpu_to_le32(from_kgid(user_ns, ace->e_id.gid)); + else + xattr_ace->e_id = + cpu_to_le32(from_kuid(user_ns, ace->e_id.uid)); + xattr_ace++; + } + return real_size; +} +EXPORT_SYMBOL_GPL(richacl_to_xattr); + +/* + * Fix up the uids and gids in richacl extended attributes in place. + */ +static void richacl_fix_xattr_userns( + struct user_namespace *to, struct user_namespace *from, + void *value, size_t size) +{ + struct richacl_xattr *xattr_acl = value; + struct richace_xattr *xattr_ace = + (struct richace_xattr *)(xattr_acl + 1); + unsigned int count; + + if (!value) + return; + if (size < sizeof(*xattr_acl)) + return; + if (xattr_acl->a_version != cpu_to_le32(RICHACL_XATTR_VERSION)) + return; + size -= sizeof(*xattr_acl); + if (size % sizeof(*xattr_ace)) + return; + count = size / sizeof(*xattr_ace); + for (; count; count--, xattr_ace++) { + if (xattr_ace->e_flags & cpu_to_le16(RICHACE_SPECIAL_WHO)) + continue; + if (xattr_ace->e_flags & + cpu_to_le16(RICHACE_IDENTIFIER_GROUP)) { + u32 id = le32_to_cpu(xattr_ace->e_id); + kgid_t gid = make_kgid(from, id); + + xattr_ace->e_id = cpu_to_le32(from_kgid(to, gid)); + } else { + u32 id = le32_to_cpu(xattr_ace->e_id); + kuid_t uid = make_kuid(from, id); + + xattr_ace->e_id = cpu_to_le32(from_kuid(to, uid)); + } + } +} + +void richacl_fix_xattr_from_user(void *value, size_t size) +{ + struct user_namespace *user_ns = current_user_ns(); + + if (user_ns == &init_user_ns) + return; + richacl_fix_xattr_userns(&init_user_ns, user_ns, value, size); +} + +void richacl_fix_xattr_to_user(void *value, size_t size) +{ + struct user_namespace *user_ns = current_user_ns(); + + if (user_ns == &init_user_ns) + return; + richacl_fix_xattr_userns(user_ns, &init_user_ns, value, size); +} diff --git a/fs/xattr.c b/fs/xattr.c index 072fee1..f2313c6 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -21,6 +21,7 @@ #include #include #include +#include #include @@ -314,6 +315,18 @@ out: } EXPORT_SYMBOL_GPL(vfs_removexattr); +static void +fix_xattr_from_user(const char *kname, void *kvalue, size_t size) +{ + if (strncmp(kname, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) + return; + kname += XATTR_SYSTEM_PREFIX_LEN; + if (!strcmp(kname, XATTR_POSIX_ACL_ACCESS) || + !strcmp(kname, XATTR_POSIX_ACL_DEFAULT)) + posix_acl_fix_xattr_from_user(kvalue, size); + else if (!strcmp(kname, XATTR_RICHACL)) + richacl_fix_xattr_from_user(kvalue, size); +} /* * Extended attribute SET operations @@ -350,9 +363,7 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value, error = -EFAULT; goto out; } - if ((strcmp(kname, XATTR_NAME_POSIX_ACL_ACCESS) == 0) || - (strcmp(kname, XATTR_NAME_POSIX_ACL_DEFAULT) == 0)) - posix_acl_fix_xattr_from_user(kvalue, size); + fix_xattr_from_user(kname, kvalue, size); } error = vfs_setxattr(d, kname, kvalue, size, flags); @@ -419,6 +430,19 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name, return error; } +static void +fix_xattr_to_user(const char *kname, void *kvalue, size_t size) +{ + if (strncmp(kname, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) + return; + kname += XATTR_SYSTEM_PREFIX_LEN; + if (!strcmp(kname, XATTR_POSIX_ACL_ACCESS) || + !strcmp(kname, XATTR_POSIX_ACL_DEFAULT)) + posix_acl_fix_xattr_to_user(kvalue, size); + else if (!strcmp(kname, XATTR_RICHACL)) + richacl_fix_xattr_to_user(kvalue, size); +} + /* * Extended attribute GET operations */ @@ -451,9 +475,7 @@ getxattr(struct dentry *d, const char __user *name, void __user *value, error = vfs_getxattr(d, kname, kvalue, size); if (error > 0) { - if ((strcmp(kname, XATTR_NAME_POSIX_ACL_ACCESS) == 0) || - (strcmp(kname, XATTR_NAME_POSIX_ACL_DEFAULT) == 0)) - posix_acl_fix_xattr_to_user(kvalue, size); + fix_xattr_to_user(kname, kvalue, size); if (size && copy_to_user(value, kvalue, error)) error = -EFAULT; } else if (error == -ERANGE && size >= XATTR_SIZE_MAX) { diff --git a/include/linux/richacl_xattr.h b/include/linux/richacl_xattr.h new file mode 100644 index 0000000..7fc5ca8 --- /dev/null +++ b/include/linux/richacl_xattr.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#ifndef __RICHACL_XATTR_H +#define __RICHACL_XATTR_H + +#include +#include + +extern struct richacl *richacl_from_xattr(struct user_namespace *, const void *, + size_t); +extern size_t richacl_xattr_size(const struct richacl *); +extern int richacl_to_xattr(struct user_namespace *, const struct richacl *, + void *, size_t); + +#ifdef CONFIG_FS_RICHACL +extern void richacl_fix_xattr_from_user(void *, size_t); +extern void richacl_fix_xattr_to_user(void *, size_t); +#else +static inline void richacl_fix_xattr_from_user(void *value, size_t size) +{ +} + +static inline void richacl_fix_xattr_to_user(void *value, size_t size) +{ +} +#endif + +#endif /* __RICHACL_XATTR_H */ diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild index 8c82010..18ad070 100644 --- a/include/uapi/linux/Kbuild +++ b/include/uapi/linux/Kbuild @@ -349,6 +349,7 @@ header-y += reiserfs_fs.h header-y += reiserfs_xattr.h header-y += resource.h header-y += richacl.h +header-y += richacl_xattr.h header-y += rfkill.h header-y += romfs_fs.h header-y += rose.h diff --git a/include/uapi/linux/richacl_xattr.h b/include/uapi/linux/richacl_xattr.h new file mode 100644 index 0000000..5178ca6 --- /dev/null +++ b/include/uapi/linux/richacl_xattr.h @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2006, 2010 Novell, Inc. + * Copyright (C) 2015 Red Hat, Inc. + * Written by Andreas Gruenbacher + * + * This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + */ + +#ifndef __UAPI_RICHACL_XATTR_H +#define __UAPI_RICHACL_XATTR_H + +#include +#include + +struct richace_xattr { + __le16 e_type; + __le16 e_flags; + __le32 e_mask; + __le32 e_id; +}; + +struct richacl_xattr { + unsigned char a_version; + unsigned char a_flags; + __le16 a_count; + __le32 a_owner_mask; + __le32 a_group_mask; + __le32 a_other_mask; +}; + +#define RICHACL_XATTR_VERSION 0 +#define RICHACL_XATTR_MAX_COUNT \ + ((XATTR_SIZE_MAX - sizeof(struct richacl_xattr)) / \ + sizeof(struct richace_xattr)) + +#endif /* __UAPI_RICHACL_XATTR_H */ diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h index 1590c49..1996903 100644 --- a/include/uapi/linux/xattr.h +++ b/include/uapi/linux/xattr.h @@ -73,5 +73,7 @@ #define XATTR_POSIX_ACL_DEFAULT "posix_acl_default" #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT +#define XATTR_RICHACL "richacl" +#define XATTR_NAME_RICHACL XATTR_SYSTEM_PREFIX XATTR_RICHACL #endif /* _UAPI_LINUX_XATTR_H */ -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:11:25 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 536BC7F94 for ; Mon, 9 Nov 2015 05:11:25 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 408648F8040 for ; Mon, 9 Nov 2015 03:11:25 -0800 (PST) X-ASG-Debug-ID: 1447067483-04cbb02425d1620001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id wO4H7blkkg1v2lIy (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:11:24 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 75660C0B60EA; Mon, 9 Nov 2015 11:11:23 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94Cc028578; Mon, 9 Nov 2015 06:11:17 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 19/22] richacl: Add richacl xattr handler Date: Mon, 9 Nov 2015 12:09:00 +0100 X-ASG-Orig-Subj: [PATCH v15 19/22] richacl: Add richacl xattr handler Message-Id: <1447067343-31479-20-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067484 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Add richacl xattr handler implementing the xattr operations based on the get_richacl and set_richacl inode operations. Signed-off-by: Andreas Gruenbacher --- fs/richacl_xattr.c | 78 +++++++++++++++++++++++++++++++++++++++++++ include/linux/richacl_xattr.h | 2 ++ 2 files changed, 80 insertions(+) diff --git a/fs/richacl_xattr.c b/fs/richacl_xattr.c index 38473b6..767c1f7 100644 --- a/fs/richacl_xattr.c +++ b/fs/richacl_xattr.c @@ -18,7 +18,9 @@ #include #include #include +#include #include +#include MODULE_LICENSE("GPL"); @@ -161,6 +163,82 @@ richacl_to_xattr(struct user_namespace *user_ns, } EXPORT_SYMBOL_GPL(richacl_to_xattr); +static size_t +richacl_xattr_list(struct dentry *dentry, char *list, size_t list_len, + const char *name, size_t name_len, int handler_flags) +{ + const size_t size = sizeof(XATTR_NAME_RICHACL); + + if (!IS_RICHACL(d_backing_inode(dentry))) + return 0; + if (list && size <= list_len) + memcpy(list, XATTR_NAME_RICHACL, size); + return size; +} + +static int +richacl_xattr_get(struct dentry *dentry, const char *name, void *buffer, + size_t buffer_size, int handler_flags) +{ + struct inode *inode = d_backing_inode(dentry); + struct richacl *acl; + int error; + + if (strcmp(name, "") != 0) + return -EINVAL; + if (!IS_RICHACL(inode)) + return EOPNOTSUPP; + if (S_ISLNK(inode->i_mode)) + return -EOPNOTSUPP; + acl = get_richacl(inode); + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl == NULL) + return -ENODATA; + error = richacl_to_xattr(&init_user_ns, acl, buffer, buffer_size); + richacl_put(acl); + return error; +} + +static int +richacl_xattr_set(struct dentry *dentry, const char *name, + const void *value, size_t size, int flags, int handler_flags) +{ + struct inode *inode = d_backing_inode(dentry); + struct richacl *acl = NULL; + int ret; + + if (strcmp(name, "") != 0) + return -EINVAL; + if (!IS_RICHACL(inode)) + return -EOPNOTSUPP; + if (!inode->i_op->set_richacl) + return -EOPNOTSUPP; + + if (!uid_eq(current_fsuid(), inode->i_uid) && + inode_permission(inode, MAY_CHMOD) && + !capable(CAP_FOWNER)) + return -EPERM; + + if (value) { + acl = richacl_from_xattr(&init_user_ns, value, size); + if (IS_ERR(acl)) + return PTR_ERR(acl); + } + + ret = inode->i_op->set_richacl(inode, acl); + richacl_put(acl); + return ret; +} + +struct xattr_handler richacl_xattr_handler = { + .prefix = XATTR_NAME_RICHACL, + .list = richacl_xattr_list, + .get = richacl_xattr_get, + .set = richacl_xattr_set, +}; +EXPORT_SYMBOL(richacl_xattr_handler); + /* * Fix up the uids and gids in richacl extended attributes in place. */ diff --git a/include/linux/richacl_xattr.h b/include/linux/richacl_xattr.h index 7fc5ca8..45ec27a 100644 --- a/include/linux/richacl_xattr.h +++ b/include/linux/richacl_xattr.h @@ -39,4 +39,6 @@ static inline void richacl_fix_xattr_to_user(void *value, size_t size) } #endif +extern struct xattr_handler richacl_xattr_handler; + #endif /* __RICHACL_XATTR_H */ -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:11:32 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A5EEF7F3F for ; Mon, 9 Nov 2015 05:11:32 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 27583AC004 for ; Mon, 9 Nov 2015 03:11:32 -0800 (PST) X-ASG-Debug-ID: 1447067490-04cbb02424d1620001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 9NJqoSDMHvWz7BPu (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:11:30 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 4D902C100450; Mon, 9 Nov 2015 11:11:30 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94Cd028578; Mon, 9 Nov 2015 06:11:24 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: Andreas Gruenbacher Subject: [PATCH v15 20/22] vfs: Add richacl permission checking Date: Mon, 9 Nov 2015 12:09:01 +0100 X-ASG-Orig-Subj: [PATCH v15 20/22] vfs: Add richacl permission checking Message-Id: <1447067343-31479-21-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067490 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hook the richacl permission checking function into the vfs. Signed-off-by: Andreas Gruenbacher --- fs/namei.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++-- fs/posix_acl.c | 6 +++--- 2 files changed, 52 insertions(+), 5 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 7f21554..2d32d103 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include "internal.h" @@ -255,7 +256,40 @@ void putname(struct filename *name) __putname(name); } -static int check_acl(struct inode *inode, int mask) +static int check_richacl(struct inode *inode, int mask) +{ +#ifdef CONFIG_FS_RICHACL + struct richacl *acl; + + if (mask & MAY_NOT_BLOCK) { + acl = get_cached_richacl_rcu(inode); + if (!acl) + goto no_acl; + /* no ->get_richacl() calls in RCU mode... */ + if (acl == ACL_NOT_CACHED) + return -ECHILD; + return richacl_permission(inode, acl, mask & ~MAY_NOT_BLOCK); + } + + acl = get_richacl(inode); + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl) { + int error = richacl_permission(inode, acl, mask); + richacl_put(acl); + return error; + } +no_acl: +#endif + if (mask & (MAY_DELETE_SELF | MAY_TAKE_OWNERSHIP | + MAY_CHMOD | MAY_SET_TIMES)) { + /* File permission bits cannot grant this. */ + return -EACCES; + } + return -EAGAIN; +} + +static int check_posix_acl(struct inode *inode, int mask) { #ifdef CONFIG_FS_POSIX_ACL struct posix_acl *acl; @@ -290,11 +324,24 @@ static int acl_permission_check(struct inode *inode, int mask) { unsigned int mode = inode->i_mode; + /* + * With POSIX ACLs, the (mode & S_IRWXU) bits exactly match the owner + * permissions, and we can skip checking posix acls for the owner. + * With richacls, the owner may be granted fewer permissions than the + * mode bits seem to suggest (for example, append but not write), and + * we always need to check the richacl. + */ + + if (IS_RICHACL(inode)) { + int error = check_richacl(inode, mask); + if (error != -EAGAIN) + return error; + } if (likely(uid_eq(current_fsuid(), inode->i_uid))) mode >>= 6; else { if (IS_POSIXACL(inode) && (mode & S_IRWXG)) { - int error = check_acl(inode, mask); + int error = check_posix_acl(inode, mask); if (error != -EAGAIN) return error; } diff --git a/fs/posix_acl.c b/fs/posix_acl.c index b0eb1dc..6dbddb6 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -100,13 +100,13 @@ struct posix_acl *get_acl(struct inode *inode, int type) { struct posix_acl *acl; + if (!IS_POSIXACL(inode)) + return NULL; + acl = get_cached_acl(inode, type); if (acl != ACL_NOT_CACHED) return acl; - if (!IS_POSIXACL(inode)) - return NULL; - /* * A filesystem can force a ACL callback by just never filling the * ACL cache. But normally you'd fill the cache either at inode -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:11:40 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 05AFA7FAF for ; Mon, 9 Nov 2015 05:11:40 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id CDDF0304043 for ; Mon, 9 Nov 2015 03:11:39 -0800 (PST) X-ASG-Debug-ID: 1447067497-04bdf03f03cdc40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id soCkpms1RqVIZlZc (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:11:37 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 8935CC10047C; Mon, 9 Nov 2015 11:11:37 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94Ce028578; Mon, 9 Nov 2015 06:11:30 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: "Aneesh Kumar K.V" , Andreas Gruenbacher Subject: [PATCH v15 21/22] ext4: Add richacl support Date: Mon, 9 Nov 2015 12:09:02 +0100 X-ASG-Orig-Subj: [PATCH v15 21/22] ext4: Add richacl support Message-Id: <1447067343-31479-22-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067497 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 From: "Aneesh Kumar K.V" Support the richacl permission model in ext4. The richacls are stored in "system.richacl" xattrs. Richacls need to be enabled by tune2fs or at file system create time. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Andreas Gruenbacher Reviewed-by: Andreas Dilger --- fs/ext4/Kconfig | 11 +++++ fs/ext4/Makefile | 1 + fs/ext4/file.c | 3 ++ fs/ext4/ialloc.c | 11 ++++- fs/ext4/inode.c | 12 ++++- fs/ext4/namei.c | 5 ++ fs/ext4/richacl.c | 142 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ fs/ext4/richacl.h | 40 +++++++++++++++ fs/ext4/xattr.c | 7 +++ 9 files changed, 229 insertions(+), 3 deletions(-) create mode 100644 fs/ext4/richacl.c create mode 100644 fs/ext4/richacl.h diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig index b46e9fc..65c5230 100644 --- a/fs/ext4/Kconfig +++ b/fs/ext4/Kconfig @@ -22,6 +22,17 @@ config EXT3_FS_POSIX_ACL This config option is here only for backward compatibility. ext3 filesystem is now handled by the ext4 driver. +config EXT4_FS_RICHACL + bool "Ext4 Rich Access Control Lists (EXPERIMENTAL)" + depends on EXT4_FS + select FS_RICHACL + help + Richacls are an implementation of NFSv4 ACLs, extended by file masks + to cleanly integrate into the POSIX file permission model. To learn + more about them, see http://www.bestbits.at/richacl/. + + If you don't know what Richacls are, say N. + config EXT3_FS_SECURITY bool "Ext3 Security Labels" depends on EXT3_FS diff --git a/fs/ext4/Makefile b/fs/ext4/Makefile index 75285ea..ea0d539 100644 --- a/fs/ext4/Makefile +++ b/fs/ext4/Makefile @@ -14,3 +14,4 @@ ext4-$(CONFIG_EXT4_FS_POSIX_ACL) += acl.o ext4-$(CONFIG_EXT4_FS_SECURITY) += xattr_security.o ext4-$(CONFIG_EXT4_FS_ENCRYPTION) += crypto_policy.o crypto.o \ crypto_key.o crypto_fname.o +ext4-$(CONFIG_EXT4_FS_RICHACL) += richacl.o diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 113837e..a03b4a5 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -30,6 +30,7 @@ #include "ext4_jbd2.h" #include "xattr.h" #include "acl.h" +#include "richacl.h" /* * Called when an inode is released. Note that this is different @@ -719,6 +720,8 @@ const struct inode_operations ext4_file_inode_operations = { .removexattr = generic_removexattr, .get_acl = ext4_get_acl, .set_acl = ext4_set_acl, + .get_richacl = ext4_get_richacl, + .set_richacl = ext4_set_richacl, .fiemap = ext4_fiemap, }; diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 619bfc1..9657b3a 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -27,6 +27,7 @@ #include "ext4_jbd2.h" #include "xattr.h" #include "acl.h" +#include "richacl.h" #include @@ -697,6 +698,14 @@ out: return ret; } +static inline int +ext4_new_acl(handle_t *handle, struct inode *inode, struct inode *dir) +{ + if (IS_RICHACL(dir)) + return ext4_init_richacl(handle, inode, dir); + return ext4_init_acl(handle, inode, dir); +} + /* * There are two policies for allocating an inode. If the new inode is * a directory, then a forward search is made for a block group with both @@ -1052,7 +1061,7 @@ got: if (err) goto fail_drop; - err = ext4_init_acl(handle, inode, dir); + err = ext4_new_acl(handle, inode, dir); if (err) goto fail_free_drop; diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 612fbcf..647f3c3 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -42,6 +42,7 @@ #include "xattr.h" #include "acl.h" #include "truncate.h" +#include "richacl.h" #include @@ -4638,6 +4639,14 @@ static void ext4_wait_for_tail_page_commit(struct inode *inode) } } +static inline int +ext4_acl_chmod(struct inode *inode, umode_t mode) +{ + if (IS_RICHACL(inode)) + return richacl_chmod(inode, inode->i_mode); + return posix_acl_chmod(inode, inode->i_mode); +} + /* * ext4_setattr() * @@ -4806,8 +4815,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr) ext4_orphan_del(NULL, inode); if (!rc && (ia_valid & ATTR_MODE)) - rc = posix_acl_chmod(inode, inode->i_mode); - + rc = ext4_acl_chmod(inode, inode->i_mode); err_out: ext4_std_error(inode->i_sb, error); if (!error) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 9f61e76..9b6e8b9 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -38,6 +38,7 @@ #include "xattr.h" #include "acl.h" +#include "richacl.h" #include /* @@ -3854,6 +3855,8 @@ const struct inode_operations ext4_dir_inode_operations = { .removexattr = generic_removexattr, .get_acl = ext4_get_acl, .set_acl = ext4_set_acl, + .get_richacl = ext4_get_richacl, + .set_richacl = ext4_set_richacl, .fiemap = ext4_fiemap, }; @@ -3865,4 +3868,6 @@ const struct inode_operations ext4_special_inode_operations = { .removexattr = generic_removexattr, .get_acl = ext4_get_acl, .set_acl = ext4_set_acl, + .get_richacl = ext4_get_richacl, + .set_richacl = ext4_set_richacl, }; diff --git a/fs/ext4/richacl.c b/fs/ext4/richacl.c new file mode 100644 index 0000000..d581be4 --- /dev/null +++ b/fs/ext4/richacl.c @@ -0,0 +1,142 @@ +/* + * Copyright IBM Corporation, 2010 + * Copyright (C) 2015 Red Hat, Inc. + * Author: Aneesh Kumar K.V , + * Andreas Gruenbacher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2.1 of the GNU Lesser General Public License + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + */ + +#include +#include +#include + +#include "ext4.h" +#include "ext4_jbd2.h" +#include "xattr.h" +#include "acl.h" +#include "richacl.h" + +struct richacl * +ext4_get_richacl(struct inode *inode) +{ + const int name_index = EXT4_XATTR_INDEX_RICHACL; + void *value = NULL; + struct richacl *acl = NULL; + int retval; + + retval = ext4_xattr_get(inode, name_index, "", NULL, 0); + if (retval > 0) { + value = kmalloc(retval, GFP_NOFS); + if (!value) + return ERR_PTR(-ENOMEM); + retval = ext4_xattr_get(inode, name_index, "", value, retval); + } + if (retval > 0) { + acl = richacl_from_xattr(&init_user_ns, value, retval); + if (acl == ERR_PTR(-EINVAL)) + acl = ERR_PTR(-EIO); + } else if (retval != -ENODATA && retval != -ENOSYS) { + acl = ERR_PTR(retval); + } + kfree(value); + + if (!IS_ERR(acl)) + set_cached_richacl(inode, acl); + + return acl; +} + +static int +__ext4_remove_richacl(handle_t *handle, struct inode *inode) +{ + const int name_index = EXT4_XATTR_INDEX_RICHACL; + int retval; + + retval = ext4_xattr_set_handle(handle, inode, name_index, "", + NULL, 0, 0); + if (!retval) + set_cached_richacl(inode, NULL); + return retval; +} + +static int +__ext4_set_richacl(handle_t *handle, struct inode *inode, struct richacl *acl) +{ + const int name_index = EXT4_XATTR_INDEX_RICHACL; + umode_t mode = inode->i_mode; + int retval, size; + void *value; + + if (richacl_equiv_mode(acl, &mode) == 0) { + inode->i_ctime = ext4_current_time(inode); + inode->i_mode = mode; + ext4_mark_inode_dirty(handle, inode); + return __ext4_remove_richacl(handle, inode); + } + + mode &= ~S_IRWXUGO; + mode |= richacl_masks_to_mode(acl); + + size = richacl_xattr_size(acl); + value = kmalloc(size, GFP_NOFS); + if (!value) + return -ENOMEM; + richacl_to_xattr(&init_user_ns, acl, value, size); + inode->i_mode = mode; + retval = ext4_xattr_set_handle(handle, inode, name_index, "", + value, size, 0); + kfree(value); + if (retval) + return retval; + + set_cached_richacl(inode, acl); + + return 0; +} + +int +ext4_set_richacl(struct inode *inode, struct richacl *acl) +{ + handle_t *handle; + int retval, retries = 0; + +retry: + handle = ext4_journal_start(inode, EXT4_HT_XATTR, + ext4_jbd2_credits_xattr(inode)); + if (IS_ERR(handle)) + return PTR_ERR(handle); + + if (acl) + retval = __ext4_set_richacl(handle, inode, acl); + else + retval = __ext4_remove_richacl(handle, inode); + + ext4_journal_stop(handle); + if (retval == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) + goto retry; + return retval; +} + +int +ext4_init_richacl(handle_t *handle, struct inode *inode, struct inode *dir) +{ + struct richacl *acl = richacl_create(&inode->i_mode, dir); + int error; + + error = PTR_ERR(acl); + if (IS_ERR(acl)) + return error; + if (acl) { + error = __ext4_set_richacl(handle, inode, acl); + richacl_put(acl); + } + return error; +} diff --git a/fs/ext4/richacl.h b/fs/ext4/richacl.h new file mode 100644 index 0000000..6fe9a92 --- /dev/null +++ b/fs/ext4/richacl.h @@ -0,0 +1,40 @@ +/* + * Copyright IBM Corporation, 2010 + * Copyright (C) 2015 Red Hat, Inc. + * Author Aneesh Kumar K.V + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2.1 of the GNU Lesser General Public License + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + */ + +#ifndef __FS_EXT4_RICHACL_H +#define __FS_EXT4_RICHACL_H + +#include + +#ifdef CONFIG_EXT4_FS_RICHACL + +extern struct richacl *ext4_get_richacl(struct inode *); +extern int ext4_set_richacl(struct inode *, struct richacl *); + +extern int ext4_init_richacl(handle_t *, struct inode *, struct inode *); + +#else /* CONFIG_EXT4_FS_RICHACL */ + +#define ext4_get_richacl NULL +#define ext4_set_richacl NULL + +static inline int +ext4_init_richacl(handle_t *handle, struct inode *inode, struct inode *dir) +{ + return 0; +} + +#endif /* CONFIG_EXT4_FS_RICHACL */ +#endif /* __FS_EXT4_RICHACL_H */ diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 16e28c0..4d79adb 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -55,6 +55,7 @@ #include #include #include +#include #include "ext4_jbd2.h" #include "ext4.h" #include "xattr.h" @@ -99,6 +100,9 @@ static const struct xattr_handler *ext4_xattr_handler_map[] = { #ifdef CONFIG_EXT4_FS_SECURITY [EXT4_XATTR_INDEX_SECURITY] = &ext4_xattr_security_handler, #endif +#ifdef CONFIG_EXT4_FS_RICHACL + [EXT4_XATTR_INDEX_RICHACL] = &richacl_xattr_handler, +#endif }; const struct xattr_handler *ext4_xattr_handlers[] = { @@ -111,6 +115,9 @@ const struct xattr_handler *ext4_xattr_handlers[] = { #ifdef CONFIG_EXT4_FS_SECURITY &ext4_xattr_security_handler, #endif +#ifdef CONFIG_EXT4_FS_RICHACL + &richacl_xattr_handler, +#endif NULL }; -- 2.5.0 From agruenba@redhat.com Mon Nov 9 05:11:46 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6855C7FB4 for ; Mon, 9 Nov 2015 05:11:46 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 11EE7AC004 for ; Mon, 9 Nov 2015 03:11:46 -0800 (PST) X-ASG-Debug-ID: 1447067504-04bdf03f02cdc50001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id QBUmDjyOXJqo3cw7 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 03:11:45 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id B557D225; Mon, 9 Nov 2015 11:11:44 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-118.ams2.redhat.com [10.36.6.118]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9B94Cf028578; Mon, 9 Nov 2015 06:11:38 -0500 From: Andreas Gruenbacher To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Cc: "Aneesh Kumar K.V" , Andreas Gruenbacher Subject: [PATCH v15 22/22] ext4: Add richacl feature flag Date: Mon, 9 Nov 2015 12:09:03 +0100 X-ASG-Orig-Subj: [PATCH v15 22/22] ext4: Add richacl feature flag Message-Id: <1447067343-31479-23-git-send-email-agruenba@redhat.com> In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447067505 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 From: "Aneesh Kumar K.V" This feature flag selects richacl instead of POSIX ACL support on the filesystem. When this feature is off, the "acl" and "noacl" mount options control whether POSIX ACLs are enabled. When it is on, richacls are automatically enabled and using the "noacl" mount option leads to an error. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Andreas Gruenbacher Reviewed-by: Andreas Dilger --- fs/ext4/ext4.h | 6 ++++-- fs/ext4/super.c | 49 ++++++++++++++++++++++++++++++++++++++++--------- 2 files changed, 44 insertions(+), 11 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index fd1f28b..b97a3b1 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -991,7 +991,7 @@ struct ext4_inode_info { #define EXT4_MOUNT_UPDATE_JOURNAL 0x01000 /* Update the journal format */ #define EXT4_MOUNT_NO_UID32 0x02000 /* Disable 32-bit UIDs */ #define EXT4_MOUNT_XATTR_USER 0x04000 /* Extended user attributes */ -#define EXT4_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control Lists */ +#define EXT4_MOUNT_ACL 0x08000 /* Access Control Lists */ #define EXT4_MOUNT_NO_AUTO_DA_ALLOC 0x10000 /* No auto delalloc mapping */ #define EXT4_MOUNT_BARRIER 0x20000 /* Use block barriers */ #define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */ @@ -1582,6 +1582,7 @@ static inline int ext4_encrypted_inode(struct inode *inode) #define EXT4_FEATURE_INCOMPAT_LARGEDIR 0x4000 /* >2GB or 3-lvl htree */ #define EXT4_FEATURE_INCOMPAT_INLINE_DATA 0x8000 /* data in inode */ #define EXT4_FEATURE_INCOMPAT_ENCRYPT 0x10000 +#define EXT4_FEATURE_INCOMPAT_RICHACL 0x20000 #define EXT2_FEATURE_COMPAT_SUPP EXT4_FEATURE_COMPAT_EXT_ATTR #define EXT2_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \ @@ -1607,7 +1608,8 @@ static inline int ext4_encrypted_inode(struct inode *inode) EXT4_FEATURE_INCOMPAT_FLEX_BG| \ EXT4_FEATURE_INCOMPAT_MMP | \ EXT4_FEATURE_INCOMPAT_INLINE_DATA | \ - EXT4_FEATURE_INCOMPAT_ENCRYPT) + EXT4_FEATURE_INCOMPAT_ENCRYPT | \ + EXT4_FEATURE_INCOMPAT_RICHACL) #define EXT4_FEATURE_RO_COMPAT_SUPP (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \ EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \ EXT4_FEATURE_RO_COMPAT_GDT_CSUM| \ diff --git a/fs/ext4/super.c b/fs/ext4/super.c index a63c7b0..7457ea8 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1270,6 +1270,28 @@ static ext4_fsblk_t get_sb_block(void **data) return sb_block; } +static int enable_acl(struct super_block *sb) +{ + sb->s_flags &= ~(MS_POSIXACL | MS_RICHACL); + if (test_opt(sb, ACL)) { + if (EXT4_HAS_INCOMPAT_FEATURE(sb, + EXT4_FEATURE_INCOMPAT_RICHACL)) { +#ifdef CONFIG_EXT4_FS_RICHACL + sb->s_flags |= MS_RICHACL; +#else + return -EOPNOTSUPP; +#endif + } else { +#ifdef CONFIG_EXT4_FS_POSIX_ACL + sb->s_flags |= MS_POSIXACL; +#else + return -EOPNOTSUPP; +#endif + } + } + return 0; +} + #define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3)) static char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n" "Contact linux-ext4@vger.kernel.org if you think we should keep it.\n"; @@ -1416,9 +1438,9 @@ static const struct mount_opts { MOPT_NO_EXT2 | MOPT_DATAJ}, {Opt_user_xattr, EXT4_MOUNT_XATTR_USER, MOPT_SET}, {Opt_nouser_xattr, EXT4_MOUNT_XATTR_USER, MOPT_CLEAR}, -#ifdef CONFIG_EXT4_FS_POSIX_ACL - {Opt_acl, EXT4_MOUNT_POSIX_ACL, MOPT_SET}, - {Opt_noacl, EXT4_MOUNT_POSIX_ACL, MOPT_CLEAR}, +#if defined(CONFIG_EXT4_FS_POSIX_ACL) || defined(CONFIG_EXT4_FS_RICHACL) + {Opt_acl, EXT4_MOUNT_ACL, MOPT_SET}, + {Opt_noacl, EXT4_MOUNT_ACL, MOPT_CLEAR}, #else {Opt_acl, 0, MOPT_NOSUPPORT}, {Opt_noacl, 0, MOPT_NOSUPPORT}, @@ -1466,6 +1488,13 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, #endif switch (token) { case Opt_noacl: +#ifdef CONFIG_EXT4_FS_RICHACL + if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RICHACL)) { + ext4_msg(sb, KERN_ERR, "Mount option \"%s\" incompatible " + "with richacl feature", opt); + return -1; + } +#endif case Opt_nouser_xattr: ext4_msg(sb, KERN_WARNING, deprecated_msg, opt, "3.5"); break; @@ -3576,8 +3605,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) set_opt(sb, NO_UID32); /* xattr user namespace & acls are now defaulted on */ set_opt(sb, XATTR_USER); -#ifdef CONFIG_EXT4_FS_POSIX_ACL - set_opt(sb, POSIX_ACL); +#if defined(CONFIG_EXT4_FS_POSIX_ACL) || defined(CONFIG_EXT4_FS_RICHACL) + set_opt(sb, ACL); #endif /* don't forget to enable journal_csum when metadata_csum is enabled. */ if (ext4_has_metadata_csum(sb)) @@ -3660,8 +3689,9 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) sb->s_iflags |= SB_I_CGROUPWB; } - sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | - (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0); + err = enable_acl(sb); + if (err) + goto failed_mount; if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV && (EXT4_HAS_COMPAT_FEATURE(sb, ~0U) || @@ -4981,8 +5011,9 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED) ext4_abort(sb, "Abort forced by user"); - sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | - (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0); + err = enable_acl(sb); + if (err) + goto restore_opts; es = sbi->s_es; -- 2.5.0 From tariq.na33@na.gov.pk Mon Nov 9 05:38:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 373D97F52 for ; Mon, 9 Nov 2015 05:38:33 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 22B50304043 for ; Mon, 9 Nov 2015 03:38:32 -0800 (PST) X-ASG-Debug-ID: 1447069105-04cb6c296dcd0c0001-NocioJ Received: from smtpgw1.nayatel.com (smtpgw1.nayatel.com [115.186.188.154]) by cuda.sgi.com with ESMTP id Fgcck8BNaKh44jNB for ; Mon, 09 Nov 2015 03:38:25 -0800 (PST) X-Barracuda-Envelope-From: tariq.na33@na.gov.pk X-Barracuda-Apparent-Source-IP: 115.186.188.154 Received: from fe2.nayatel.net.pk (203.82.48.116) by smtpgw1.nayatel.com (Axigen) with (ECDHE-RSA-AES128-SHA256 encrypted) ESMTPS id 2AB083; Mon, 9 Nov 2015 16:38:24 +0500 Received: from be2.nayatel.net.pk (203.82.48.139) by fe2.nayatel.net.pk (Axigen) with (ECDHE-RSA-AES128-SHA256 encrypted) ESMTPSA id 01EDC0; Mon, 9 Nov 2015 16:38:22 +0500 Received: from [198.8.80.184] by na.gov.pk with HTTP; Mon, 9 Nov 2015 16:38:22 +0500 From: tariq.na33@na.gov.pk Date: Mon, 9 Nov 2015 16:38:22 +0500 X-Mailer: Axigen WebMail Message-ID: <1447069102278544364@na.gov.pk> Subject: ITC Administrator. 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--===axigen=7115674229848184332267514756691062625273=axigen===-- From hejianet@gmail.com Mon Nov 9 08:32:10 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4CC517F37 for ; Mon, 9 Nov 2015 08:32:10 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id CF88BAC004 for ; Mon, 9 Nov 2015 06:32:06 -0800 (PST) X-ASG-Debug-ID: 1447079525-04cb6c296dd1050001-NocioJ Received: from mail-ob0-f169.google.com (mail-ob0-f169.google.com [209.85.214.169]) by cuda.sgi.com with ESMTP id zYX1brBbA7SUVb1V (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 09 Nov 2015 06:32:05 -0800 (PST) X-Barracuda-Envelope-From: hejianet@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.214.169 Received: by obbza9 with SMTP id za9so141320197obb.1 for ; Mon, 09 Nov 2015 06:32:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=JFwAWHP8+Xu5Dpj8CsVH9agAhJihFoZ0XraKVITcleU=; b=mGtvJZJGmmNFTqGFi0pNcHAGz+zGi/YjKA0cWorc2gUlOzt3qRHMASyosAITXLUjM3 HUbpfmwktLMX067EvESc60rGwMTe2cLHCWV/I6si07sm54vup5ZXsDfeQh5BNO7bFa94 vHrMluls4ZrfvjBcbnaYcALbiiTVStqQim8UXHBcxbZGrCsIAZVkdeqDOkdQ6Cglt2fF g1eAyYsDPr8fU142ho5leMRQWdGfbi9ec2rHYdJwO/p3cFq2eGw2ovKsJxlg2P56/PQe UwyQzR92DRgOYLsnwhc+KDKTA66Ikqz64Zit3Q1xPDON0rOmM2pdpT0kJPpaLi9leaw6 3VDA== X-Received: by 10.60.40.133 with SMTP id x5mr16209348oek.34.1447079524793; Mon, 09 Nov 2015 06:32:04 -0800 (PST) Received: from localhost.localdomain.localdomain ([60.247.125.148]) by smtp.gmail.com with ESMTPSA id dh3sm4425343obb.29.2015.11.09.06.32.00 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 09 Nov 2015 06:32:04 -0800 (PST) From: Jia He To: xfs@oss.sgi.com Cc: Jia He , Dave Chinner , Brian Foster Subject: [PATCH] libxfs: Optimize the loop for xfs_bitmap_empty Date: Mon, 9 Nov 2015 22:31:22 +0800 X-ASG-Orig-Subj: [PATCH] libxfs: Optimize the loop for xfs_bitmap_empty Message-Id: <1447079482-10650-1-git-send-email-hejianet@gmail.com> X-Mailer: git-send-email 2.5.0 X-Barracuda-Connect: mail-ob0-f169.google.com[209.85.214.169] X-Barracuda-Start-Time: 1447079525 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24241 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature If there is any non zero bit in a long bitmap, it can jump out of the for loop and finish the function as soon as possible. Signed-off-by: Jia He Cc: Dave Chinner Cc: Brian Foster --- fs/xfs/libxfs/xfs_bit.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/xfs/libxfs/xfs_bit.c b/fs/xfs/libxfs/xfs_bit.c index 0e8885a..84614b0 100644 --- a/fs/xfs/libxfs/xfs_bit.c +++ b/fs/xfs/libxfs/xfs_bit.c @@ -36,6 +36,8 @@ xfs_bitmap_empty(uint *map, uint size) for (i = 0; i < size; i++) { ret |= map[i]; + if (ret != 0) + return 0; } return (ret == 0); -- 2.5.0 From darrick.wong@oracle.com Mon Nov 9 12:33:51 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 37D8A7CBF for ; Mon, 9 Nov 2015 12:33:51 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id BE9FFAC005 for ; Mon, 9 Nov 2015 10:33:47 -0800 (PST) X-ASG-Debug-ID: 1447094025-04cbb02425e2ee0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id mx4Yea3Ei3YItmTE (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 10:33:46 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tA9IXI0D013037 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 9 Nov 2015 18:33:18 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tA9IXIFl019051 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Mon, 9 Nov 2015 18:33:18 GMT Received: from abhmp0016.oracle.com (abhmp0016.oracle.com [141.146.116.22]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tA9IXHWX021230; Mon, 9 Nov 2015 18:33:17 GMT Received: from localhost (/10.145.178.207) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 09 Nov 2015 10:33:17 -0800 Date: Mon, 9 Nov 2015 10:33:12 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Cc: david@fromorbit.com, xfs@oss.sgi.com Subject: Re: [PATCH v2 03/51] xfs_io: support reflink and dedupe of file ranges Message-ID: <20151109183311.GA3255@birch.djwong.org> X-ASG-Orig-Subj: Re: [PATCH v2 03/51] xfs_io: support reflink and dedupe of file ranges References: <20151007050513.1504.28089.stgit@birch.djwong.org> <20151007050533.1504.66249.stgit@birch.djwong.org> <20151014053656.GJ10397@birch.djwong.org> <20151109075438.GA17974@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151109075438.GA17974@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447094026 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24246 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Sun, Nov 08, 2015 at 11:54:38PM -0800, Christoph Hellwig wrote: > Any reason why the dedup command is called 'dedupe'? Is this a revenge > for the missing 'e' in the creat syscall? :) Heh, sure! :) I stuck on the 'e' because the btrfs tool is 'duperemove', not 'dupremove'. (I have no preference either way.) > Either way it would be good to get this support in ASAP so we can have > the command ready for xfstests and we can merge the test. They are > useful for btrfs and NFS already, so I'd love to fast track them. --D From darrick.wong@oracle.com Mon Nov 9 12:49:46 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4928C7CBF for ; Mon, 9 Nov 2015 12:49:46 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0DC838F8033 for ; Mon, 9 Nov 2015 10:49:45 -0800 (PST) X-ASG-Debug-ID: 1447094982-04bdf03f05db600001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id 62x1FJCW04zV2akQ (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 10:49:43 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tA9InGdv015899 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 9 Nov 2015 18:49:17 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tA9InGbF006317 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Mon, 9 Nov 2015 18:49:16 GMT Received: from abhmp0010.oracle.com (abhmp0010.oracle.com [141.146.116.16]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tA9InFN4001415; Mon, 9 Nov 2015 18:49:16 GMT Received: from localhost (/10.145.178.207) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 09 Nov 2015 10:49:15 -0800 Date: Mon, 9 Nov 2015 10:49:13 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Cc: david@fromorbit.com, fstests@vger.kernel.org, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [RFCv3 00/12] xfstests: test the btrfs/xfs reflink/dedupe ioctls Message-ID: <20151109184913.GB3255@birch.djwong.org> X-ASG-Orig-Subj: Re: [RFCv3 00/12] xfstests: test the btrfs/xfs reflink/dedupe ioctls References: <20151007051257.3260.73072.stgit@birch.djwong.org> <20151109075926.GB17974@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151109075926.GB17974@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447094983 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24246 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Sun, Nov 08, 2015 at 11:59:26PM -0800, Christoph Hellwig wrote: > On Tue, Oct 06, 2015 at 10:12:57PM -0700, Darrick J. Wong wrote: > > * I don't have any interesting NFS/CIFS setups for test. :( > > I have a banrch with client and server support for NFSv4.2 CLONE > support: > > http://git.infradead.org/users/hch/pnfs.git/shortlog/refs/heads/reflink+clone > > For now you want to use btrfs on the server, as using reflinks on XFS > seems to be a little unstable over NFS. I found a few more bugs in the kernel-side implementation, which might explain that. I'm about to start working on making CoW less crappy, but I'll push all the patches out to github. (I wasn't planning on patchbombing again until December.) > > If you're going to start using this mess, you probably ought to just > > pull from my github trees for kernel[1], xfsprogs[2], and xfstests[3]. > > They should just work with the btrfs that's in 4.3. > > > > Comments and questions are, as always, welcome. > > Any reason the groups are called clone? I don't really have an opinion > on clone vs reflink but given that the xfs_io command is reflink I'd > rather be consistent. The existing btrfs reflink tests were tagged in the 'clone' group prior to my patchset. > Otherwise I'd say get it merged ASAP, we can still fix up various > details later. I'll merge your patch and repost the whole pile of tests. I'm almost ready to send a pile of updates for the XFS on-disk structure document which add stuff about the v5 format, rmapbt, and reflink. --D From darrick.wong@oracle.com Mon Nov 9 12:57:53 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 927987CBF for ; Mon, 9 Nov 2015 12:57:53 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3C87CAC004 for ; Mon, 9 Nov 2015 10:57:53 -0800 (PST) X-ASG-Debug-ID: 1447095470-04bdf03f03db8c0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id GQ3vKo84g9qfeTiX (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 10:57:50 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tA9IvRlq027363 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 9 Nov 2015 18:57:27 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tA9IvQuM027290 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Mon, 9 Nov 2015 18:57:26 GMT Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tA9IvQ30005939; Mon, 9 Nov 2015 18:57:26 GMT Received: from localhost (/10.145.178.207) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 09 Nov 2015 10:57:25 -0800 Date: Mon, 9 Nov 2015 10:57:24 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2 03/51] xfs_io: support reflink and dedupe of file ranges Message-ID: <20151109185724.GB2224@birch.djwong.org> X-ASG-Orig-Subj: Re: [PATCH v2 03/51] xfs_io: support reflink and dedupe of file ranges References: <20151007050513.1504.28089.stgit@birch.djwong.org> <20151007050533.1504.66249.stgit@birch.djwong.org> <20151014053656.GJ10397@birch.djwong.org> <20151109075438.GA17974@infradead.org> <20151109183311.GA3255@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151109183311.GA3255@birch.djwong.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447095470 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24247 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Mon, Nov 09, 2015 at 10:33:12AM -0800, Darrick J. Wong wrote: > On Sun, Nov 08, 2015 at 11:54:38PM -0800, Christoph Hellwig wrote: > > Any reason why the dedup command is called 'dedupe'? Is this a revenge > > for the missing 'e' in the creat syscall? :) > > Heh, sure! :) > > I stuck on the 'e' because the btrfs tool is 'duperemove', not 'dupremove'. > > (I have no preference either way.) > > > Either way it would be good to get this support in ASAP so we can have > > the command ready for xfstests and we can merge the test. They are > > useful for btrfs and NFS already, so I'd love to fast track them. Oh. Heh. I forgot that Dave merged the v1 patch into for-next after I'd posted the v2 patch. So ... I thought I'd convinced him to revert the v1 patch and stuff in the v2 patch, but that hasn't shown up on kernel.org. -ETOOMANYPATCHES :( --D > > > > --D > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Nov 9 14:21:19 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 528CC7CBF for ; Mon, 9 Nov 2015 14:21:19 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 404068F8033 for ; Mon, 9 Nov 2015 12:21:19 -0800 (PST) X-ASG-Debug-ID: 1447100477-04cb6c296cdb270001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id UVrdIZgNXW44JsIB (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 12:21:18 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 88F4DAB8 for ; Mon, 9 Nov 2015 20:21:17 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9KLHQ8031576 for ; Mon, 9 Nov 2015 15:21:17 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id DB00C125011; Mon, 9 Nov 2015 15:21:15 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 2/8] xfs: refactor log record unpack and data processing Date: Mon, 9 Nov 2015 15:21:09 -0500 X-ASG-Orig-Subj: [PATCH 2/8] xfs: refactor log record unpack and data processing Message-Id: <1447100475-33465-3-git-send-email-bfoster@redhat.com> In-Reply-To: <1447100475-33465-1-git-send-email-bfoster@redhat.com> References: <1447100475-33465-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447100478 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xlog_do_recovery_pass() duplicates a couple function calls related to processing log records because the function must handle wrapping around the end of the log if the head is behind the tail. This is implemented as separate loops. CRC verification pass support will modify how records are processed in both of these loops. Rather than continue to duplicate code, factor the calls that process a log record into a new helper and call that helper from both loops. This patch contains no functional changes. Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 35 +++++++++++++++++++++++------------ 1 file changed, 23 insertions(+), 12 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index b00c85e..a15a506 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4190,6 +4190,26 @@ xlog_unpack_data( return 0; } +/* + * Unpack and process a log record. + */ +STATIC int +xlog_recover_process( + struct xlog *log, + struct hlist_head rhash[], + struct xlog_rec_header *rhead, + char *dp, + int pass) +{ + int error; + + error = xlog_unpack_data(rhead, dp, log); + if (error) + return error; + + return xlog_recover_process_data(log, rhash, rhead, dp, pass); +} + STATIC int xlog_valid_rec_header( struct xlog *log, @@ -4432,12 +4452,8 @@ xlog_do_recovery_pass( goto bread_err2; } - error = xlog_unpack_data(rhead, offset, log); - if (error) - goto bread_err2; - - error = xlog_recover_process_data(log, rhash, - rhead, offset, pass); + error = xlog_recover_process(log, rhash, rhead, offset, + pass); if (error) goto bread_err2; blk_no += bblks; @@ -4465,12 +4481,7 @@ xlog_do_recovery_pass( if (error) goto bread_err2; - error = xlog_unpack_data(rhead, offset, log); - if (error) - goto bread_err2; - - error = xlog_recover_process_data(log, rhash, - rhead, offset, pass); + error = xlog_recover_process(log, rhash, rhead, offset, pass); if (error) goto bread_err2; blk_no += bblks + hblks; -- 2.1.0 From bfoster@redhat.com Mon Nov 9 14:21:19 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 74C527F37 for ; Mon, 9 Nov 2015 14:21:19 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4822B8F8040 for ; Mon, 9 Nov 2015 12:21:19 -0800 (PST) X-ASG-Debug-ID: 1447100477-04cb6c296bdb270001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id RQg98rSCq7mAIp4K (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 12:21:18 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 94D4F42E5BF for ; Mon, 9 Nov 2015 20:21:17 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9KLHJt014074 for ; Mon, 9 Nov 2015 15:21:17 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id E568A125022; Mon, 9 Nov 2015 15:21:15 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 4/8] xfs: return start block of first bad log record during recovery Date: Mon, 9 Nov 2015 15:21:11 -0500 X-ASG-Orig-Subj: [PATCH 4/8] xfs: return start block of first bad log record during recovery Message-Id: <1447100475-33465-5-git-send-email-bfoster@redhat.com> In-Reply-To: <1447100475-33465-1-git-send-email-bfoster@redhat.com> References: <1447100475-33465-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447100478 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Each log recovery pass walks from the tail block to the head block and processes records appropriately based on the associated log pass type. There are various failure conditions that can occur through this sequence, such as I/O errors, CRC errors, etc. Log torn write detection will perform CRC verification near the head of the log to detect torn writes and trim torn records from the log appropriately. As it is, xlog_do_recovery_pass() only returns an error code in the event of CRC failure, which isn't enough information to trim the head of the log. Update xlog_do_recovery_pass() to optionally return the start block of the associated record when an error occurs. This patch contains no functional changes. Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index c2bf307..2ef0880 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4239,10 +4239,12 @@ xlog_do_recovery_pass( struct xlog *log, xfs_daddr_t head_blk, xfs_daddr_t tail_blk, - int pass) + int pass, + xfs_daddr_t *first_bad) /* out: first bad log rec */ { xlog_rec_header_t *rhead; xfs_daddr_t blk_no; + xfs_daddr_t rhead_blk; char *offset; xfs_buf_t *hbp, *dbp; int error = 0, h_size, h_len; @@ -4251,6 +4253,7 @@ xlog_do_recovery_pass( struct hlist_head rhash[XLOG_RHASH_SIZE]; ASSERT(head_blk != tail_blk); + rhead_blk = 0; /* * Read the header of the tail block and get the iclog buffer size from @@ -4325,7 +4328,7 @@ xlog_do_recovery_pass( } memset(rhash, 0, sizeof(rhash)); - blk_no = tail_blk; + blk_no = rhead_blk = tail_blk; if (tail_blk > head_blk) { /* * Perform recovery around the end of the physical log. @@ -4436,7 +4439,9 @@ xlog_do_recovery_pass( pass); if (error) goto bread_err2; + blk_no += bblks; + rhead_blk = blk_no; } ASSERT(blk_no >= log->l_logBBsize); @@ -4464,13 +4469,19 @@ xlog_do_recovery_pass( error = xlog_recover_process(log, rhash, rhead, offset, pass); if (error) goto bread_err2; + blk_no += bblks + hblks; + rhead_blk = blk_no; } bread_err2: xlog_put_bp(dbp); bread_err1: xlog_put_bp(hbp); + + if (error && first_bad) + *first_bad = rhead_blk; + return error; } @@ -4508,7 +4519,7 @@ xlog_do_log_recovery( INIT_LIST_HEAD(&log->l_buf_cancel_table[i]); error = xlog_do_recovery_pass(log, head_blk, tail_blk, - XLOG_RECOVER_PASS1); + XLOG_RECOVER_PASS1, NULL); if (error != 0) { kmem_free(log->l_buf_cancel_table); log->l_buf_cancel_table = NULL; @@ -4519,7 +4530,7 @@ xlog_do_log_recovery( * When it is complete free the table of buf cancel items. */ error = xlog_do_recovery_pass(log, head_blk, tail_blk, - XLOG_RECOVER_PASS2); + XLOG_RECOVER_PASS2, NULL); #ifdef DEBUG if (!error) { int i; -- 2.1.0 From bfoster@redhat.com Mon Nov 9 14:21:20 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 5A9CC7CBF for ; Mon, 9 Nov 2015 14:21:20 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3D427304043 for ; Mon, 9 Nov 2015 12:21:19 -0800 (PST) X-ASG-Debug-ID: 1447100478-04cb6c296cdb280001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Dh6kYes00vTKUiAo (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 12:21:18 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 2230AC0AEE57 for ; Mon, 9 Nov 2015 20:21:18 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9KLHGA031583 for ; Mon, 9 Nov 2015 15:21:17 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 2FEFC125045; Mon, 9 Nov 2015 15:21:16 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH RFC 8/8] xfs: debug mode log recovery crc error injection Date: Mon, 9 Nov 2015 15:21:15 -0500 X-ASG-Orig-Subj: [PATCH RFC 8/8] xfs: debug mode log recovery crc error injection Message-Id: <1447100475-33465-9-git-send-email-bfoster@redhat.com> In-Reply-To: <1447100475-33465-1-git-send-email-bfoster@redhat.com> References: <1447100475-33465-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447100478 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS now uses CRC verification over a limited section of the log to detect torn writes prior to a crash. This is difficult to test directly due to the timing and hardware requirements to cause a short write. Add a DEBUG mode error injection mechanism to facilitate testing torn write detection. The mechanism injects CRC errors for random records in the range of the log that is scanned for torn writes. Corruptions are simulated in-core only and not generated on-disk. However, the subsequent log head truncation and partial recovery can and will cause permanent data loss. Further, error injection is global in nature and will inject errors even when the log is clean to allow for test coverage for torn writes of unmount records. This option is dangerous and is for development and testing purposes only. Error injection can be enabled and disabled via: /sys/fs/xfs/debug/log_recovery_crc_fail ... on CONFIG_XFS_DEBUG enabled kernels only. Signed-off-by: Brian Foster --- fs/xfs/xfs_globals.c | 1 + fs/xfs/xfs_log_recover.c | 92 ++++++++++++++++++++++++++++++++++++++++++++++-- fs/xfs/xfs_sysctl.h | 1 + fs/xfs/xfs_sysfs.c | 31 ++++++++++++++++ 4 files changed, 122 insertions(+), 3 deletions(-) diff --git a/fs/xfs/xfs_globals.c b/fs/xfs/xfs_globals.c index 4d41b24..0f5a242 100644 --- a/fs/xfs/xfs_globals.c +++ b/fs/xfs/xfs_globals.c @@ -46,4 +46,5 @@ xfs_param_t xfs_params = { struct xfs_globals xfs_globals = { .log_recovery_delay = 0, /* no delay by default */ + .log_recovery_crc_fail = 0, /* error injection default */ }; diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 83fd7ca..eb088d2 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -1078,6 +1078,82 @@ out: } /* + * Inject log record CRC failures during recovery. This facilitates testing of + * the recovery mechanism for short writes to the log in the event of a crash. + * + * Note that this is dangerous and for development and testing purposes only. + * This can only be enabled via the DEBUG mode log_recovery_crc_fail sysfs + * option. + */ +STATIC int +xlog_debug_crc_failure( + struct xlog *log, + xfs_daddr_t head_blk, + xfs_daddr_t tail_blk, + int total, + xfs_daddr_t *first_bad) +{ + struct xlog_rec_header *tmp_rhead; + struct xfs_buf *tmp_bp; + xfs_daddr_t tmp_rhead_blk; + int found; + int badcnt; + bool tmp_wrapped; + + ASSERT(xfs_globals.log_recovery_crc_fail); + + /* + * In practice, a clean log ends with an unmount record with a tail_lsn + * that points to the previous record. The reverse scan from the head + * block thus finds two record headers (e.g., total == 2). This means + * that errors are injected even after clean unmounts in order to + * simulate torn writes of unmount records. + * + * Note: increase this value to 3 or larger to prevent error injection + * on clean mounts. + */ + if (total < 2) + return 0; + + /* + * Randomly determine which record to flag as corrupt. + */ + badcnt = prandom_u32() % total; + if (!badcnt) + return 0; + + tmp_bp = xlog_get_bp(log, 1); + if (!tmp_bp) + return -ENOMEM; + + /* + * Locate the Nth record header block back from the head block. Set + * first_bad to point to this record and return a CRC error to flag it + * as corrupt. + * + * For example, suppose 8 records are written at the head of the log and + * badcnt is set to 3. This locates the 3rd record back from the current + * head block and calls it corrupt. In response, the log recovery CRC + * error handling code truncates these last 3 records from the head, + * verifies the new tail based on the truncated head and attempts + * recovery up through the first 5 records. + */ + found = xlog_rseek_logrec_hdr(log, head_blk, tail_blk, badcnt, tmp_bp, + &tmp_rhead_blk, &tmp_rhead, &tmp_wrapped); + xlog_put_bp(tmp_bp); + if (found < 0) + return found; + if (found != badcnt) + return 0; + + xfs_warn(log->l_mp, "Generated CRC error at log block 0x%llx " + "(%d bad records out of %d)", tmp_rhead_blk, badcnt, total); + + *first_bad = tmp_rhead_blk; + return -EFSBADCRC; +} + +/* * Detect and trim torn writes from the head of the log. * * Storage without sector atomicity guarantees can result in torn writes in the @@ -1134,12 +1210,12 @@ xlog_verify_head( tmp_bp = xlog_get_bp(log, 1); if (!tmp_bp) return -ENOMEM; - error = xlog_rseek_logrec_hdr(log, *head_blk, *tail_blk, + found = xlog_rseek_logrec_hdr(log, *head_blk, *tail_blk, XLOG_MAX_ICLOGS, tmp_bp, &tmp_rhead_blk, &tmp_rhead, &tmp_wrapped); xlog_put_bp(tmp_bp); - if (error < 0) - return error; + if (found < 0) + return found; /* * Now run a CRC verification pass over the records starting at the @@ -1148,6 +1224,16 @@ xlog_verify_head( */ error = xlog_do_recovery_pass(log, *head_blk, tmp_rhead_blk, XLOG_RECOVER_CRCPASS, &first_bad); + + /* + * Run DEBUG mode CRC error injection if it is enabled and we haven't + * legitimately failed. XXX: This is dangerous! For testing purposes + * only! + */ + if (!error && xfs_globals.log_recovery_crc_fail) + error = xlog_debug_crc_failure(log, *head_blk, tmp_rhead_blk, + found, &first_bad); + if (error == -EFSBADCRC && first_bad != *tail_blk) { /* * We've hit a potential torn write. Reset the error and warn diff --git a/fs/xfs/xfs_sysctl.h b/fs/xfs/xfs_sysctl.h index ffef453..54a6f53 100644 --- a/fs/xfs/xfs_sysctl.h +++ b/fs/xfs/xfs_sysctl.h @@ -94,6 +94,7 @@ extern xfs_param_t xfs_params; struct xfs_globals { int log_recovery_delay; /* log recovery delay (secs) */ + int log_recovery_crc_fail; /* generate log crc errors */ }; extern struct xfs_globals xfs_globals; diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c index ee70f5d..ab0c01b 100644 --- a/fs/xfs/xfs_sysfs.c +++ b/fs/xfs/xfs_sysfs.c @@ -116,8 +116,39 @@ log_recovery_delay_show( } XFS_SYSFS_ATTR_RW(log_recovery_delay); +STATIC ssize_t +log_recovery_crc_fail_store( + struct kobject *kobject, + const char *buf, + size_t count) +{ + int ret; + int val; + + ret = kstrtoint(buf, 0, &val); + if (ret) + return ret; + + if (val < 0 || val > 1) + return -EINVAL; + + xfs_globals.log_recovery_crc_fail = val; + + return count; +} + +STATIC ssize_t +log_recovery_crc_fail_show( + struct kobject *kobject, + char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", xfs_globals.log_recovery_crc_fail); +} +XFS_SYSFS_ATTR_RW(log_recovery_crc_fail); + static struct attribute *xfs_dbg_attrs[] = { ATTR_LIST(log_recovery_delay), + ATTR_LIST(log_recovery_crc_fail), NULL, }; -- 2.1.0 From bfoster@redhat.com Mon Nov 9 14:21:19 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7ACF37F3F for ; Mon, 9 Nov 2015 14:21:19 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5EC128F8049 for ; Mon, 9 Nov 2015 12:21:19 -0800 (PST) X-ASG-Debug-ID: 1447100478-04cb6c296adb270001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id gvefonz9tx7Yht1S (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 12:21:18 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 0A3D7A58A1 for ; Mon, 9 Nov 2015 20:21:18 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9KLH00011050 for ; Mon, 9 Nov 2015 15:21:17 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 0A420125027; Mon, 9 Nov 2015 15:21:15 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 5/8] xfs: support a crc verification only log record pass Date: Mon, 9 Nov 2015 15:21:12 -0500 X-ASG-Orig-Subj: [PATCH 5/8] xfs: support a crc verification only log record pass Message-Id: <1447100475-33465-6-git-send-email-bfoster@redhat.com> In-Reply-To: <1447100475-33465-1-git-send-email-bfoster@redhat.com> References: <1447100475-33465-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447100478 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Log recovery torn write detection uses CRC verification over a range of the active log to identify torn writes. Since the generic log recovery pass code implements a superset of the functionality required for CRC verification, it can be easily modified to support a CRC verification only pass. Create a new CRC pass type and update the log record processing helper to skip everything beyond CRC verification when in this mode. This pass will be invoked in subsequent patches to implement torn write detection. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_log_recover.h | 1 + fs/xfs/xfs_log_recover.c | 24 +++++++++++++++++++----- 2 files changed, 20 insertions(+), 5 deletions(-) diff --git a/fs/xfs/libxfs/xfs_log_recover.h b/fs/xfs/libxfs/xfs_log_recover.h index 1c55ccb..8e385f9 100644 --- a/fs/xfs/libxfs/xfs_log_recover.h +++ b/fs/xfs/libxfs/xfs_log_recover.h @@ -60,6 +60,7 @@ typedef struct xlog_recover { */ #define XLOG_BC_TABLE_SIZE 64 +#define XLOG_RECOVER_CRCPASS 0 #define XLOG_RECOVER_PASS1 1 #define XLOG_RECOVER_PASS2 2 diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 2ef0880..ae514df 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4159,13 +4159,27 @@ xlog_recover_process( int error; __le32 crc; + crc = xlog_cksum(log, rhead, dp, be32_to_cpu(rhead->h_len)); + /* - * Check the CRC and issue a warning if and only if the CRC in the - * header is non-zero. This is an advisory warning and the zero CRC - * check prevents warnings from being emitted when upgrading the kernel - * from one that does not add CRCs by default. + * Nothing else to do if this is a CRC verification pass. Just return + * if this a record with a non-zero crc. Unfortunately, mkfs always + * sets h_crc to 0 so we must consider this valid even on v5 supers. + * Otherwise, return EFSBADCRC on failure so the callers up the stack + * know precisely what failed. + */ + if (pass == XLOG_RECOVER_CRCPASS) { + if (rhead->h_crc && crc != le32_to_cpu(rhead->h_crc)) + return -EFSBADCRC; + return 0; + } + + /* + * We're in the normal recovery path. Issue a warning if and only if the + * CRC in the header is non-zero. This is an advisory warning and the + * zero CRC check prevents warnings from being emitted when upgrading + * the kernel from one that does not add CRCs by default. */ - crc = xlog_cksum(log, rhead, dp, be32_to_cpu(rhead->h_len)); if (crc != le32_to_cpu(rhead->h_crc)) { if (rhead->h_crc || xfs_sb_version_hascrc(&log->l_mp->m_sb)) { xfs_alert(log->l_mp, -- 2.1.0 From bfoster@redhat.com Mon Nov 9 14:21:22 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2FDE97F5F for ; Mon, 9 Nov 2015 14:21:22 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 21743304043 for ; Mon, 9 Nov 2015 12:21:22 -0800 (PST) X-ASG-Debug-ID: 1447100477-04cbb02422e5320001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id XZl7GIp9EwAldLmA (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 12:21:18 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id B1DB3C0B6112 for ; Mon, 9 Nov 2015 20:21:17 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9KLH9T023703 for ; Mon, 9 Nov 2015 15:21:17 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id F1E7912502B; Mon, 9 Nov 2015 15:21:15 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 3/8] xfs: refactor and open code log record crc check Date: Mon, 9 Nov 2015 15:21:10 -0500 X-ASG-Orig-Subj: [PATCH 3/8] xfs: refactor and open code log record crc check Message-Id: <1447100475-33465-4-git-send-email-bfoster@redhat.com> In-Reply-To: <1447100475-33465-1-git-send-email-bfoster@redhat.com> References: <1447100475-33465-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447100478 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Log record CRC verification currently occurs during active log recovery, immediately before a log record is unpacked. Therefore, the CRC calculation code is buried within the data unpack function. CRC verification pass support only needs to go so far as check the CRC, but this is not easily allowed as the code is currently organized. Since we now have a new log record processing helper, pull the record CRC verification code out from the unpack helper and open-code it at the top of the new process helper. This facilitates the ability to modify how records are processed based on the type of the current pass. This patch contains no functional changes. Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 72 +++++++++++++++++------------------------------- 1 file changed, 26 insertions(+), 46 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index a15a506..c2bf307 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4118,46 +4118,6 @@ xlog_recover_process_iunlinks( mp->m_dmevmask = mp_dmevmask; } -/* - * Upack the log buffer data and crc check it. If the check fails, issue a - * warning if and only if the CRC in the header is non-zero. This makes the - * check an advisory warning, and the zero CRC check will prevent failure - * warnings from being emitted when upgrading the kernel from one that does not - * add CRCs by default. - * - * When filesystems are CRC enabled, this CRC mismatch becomes a fatal log - * corruption failure - */ -STATIC int -xlog_unpack_data_crc( - struct xlog_rec_header *rhead, - char *dp, - struct xlog *log) -{ - __le32 crc; - - crc = xlog_cksum(log, rhead, dp, be32_to_cpu(rhead->h_len)); - if (crc != rhead->h_crc) { - if (rhead->h_crc || xfs_sb_version_hascrc(&log->l_mp->m_sb)) { - xfs_alert(log->l_mp, - "log record CRC mismatch: found 0x%x, expected 0x%x.", - le32_to_cpu(rhead->h_crc), - le32_to_cpu(crc)); - xfs_hex_dump(dp, 32); - } - - /* - * If we've detected a log record corruption, then we can't - * recover past this point. Abort recovery if we are enforcing - * CRC protection by punting an error back up the stack. - */ - if (xfs_sb_version_hascrc(&log->l_mp->m_sb)) - return -EFSCORRUPTED; - } - - return 0; -} - STATIC int xlog_unpack_data( struct xlog_rec_header *rhead, @@ -4165,11 +4125,6 @@ xlog_unpack_data( struct xlog *log) { int i, j, k; - int error; - - error = xlog_unpack_data_crc(rhead, dp, log); - if (error) - return error; for (i = 0; i < BTOBB(be32_to_cpu(rhead->h_len)) && i < (XLOG_HEADER_CYCLE_SIZE / BBSIZE); i++) { @@ -4191,7 +4146,7 @@ xlog_unpack_data( } /* - * Unpack and process a log record. + * CRC check, unpack and process a log record. */ STATIC int xlog_recover_process( @@ -4202,6 +4157,31 @@ xlog_recover_process( int pass) { int error; + __le32 crc; + + /* + * Check the CRC and issue a warning if and only if the CRC in the + * header is non-zero. This is an advisory warning and the zero CRC + * check prevents warnings from being emitted when upgrading the kernel + * from one that does not add CRCs by default. + */ + crc = xlog_cksum(log, rhead, dp, be32_to_cpu(rhead->h_len)); + if (crc != le32_to_cpu(rhead->h_crc)) { + if (rhead->h_crc || xfs_sb_version_hascrc(&log->l_mp->m_sb)) { + xfs_alert(log->l_mp, + "log record CRC mismatch: found 0x%x, expected 0x%x.", + le32_to_cpu(rhead->h_crc), + le32_to_cpu(crc)); + xfs_hex_dump(dp, 32); + } + + /* + * If the filesystem is CRC enabled, this mismatch becomes a + * fatal log corruption failure. + */ + if (xfs_sb_version_hascrc(&log->l_mp->m_sb)) + return -EFSCORRUPTED; + } error = xlog_unpack_data(rhead, dp, log); if (error) -- 2.1.0 From bfoster@redhat.com Mon Nov 9 14:21:22 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5584A7F60 for ; Mon, 9 Nov 2015 14:21:22 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1A4AE8F8033 for ; Mon, 9 Nov 2015 12:21:19 -0800 (PST) X-ASG-Debug-ID: 1447100477-04bdf03f05de2d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id oJ6hs9g6Gt7QnLYD (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 12:21:17 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 96F55A3816 for ; Mon, 9 Nov 2015 20:21:17 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9KLHWn017082 for ; Mon, 9 Nov 2015 15:21:17 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id BBAA5125010; Mon, 9 Nov 2015 15:21:15 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 0/8] xfs: log recovery torn write detection Date: Mon, 9 Nov 2015 15:21:07 -0500 X-ASG-Orig-Subj: [PATCH 0/8] xfs: log recovery torn write detection Message-Id: <1447100475-33465-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447100477 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi all, Here's a first real pass at XFS log recovery torn write detection. This series has been tested via xfstests and via repetitive fsstress/shutdown sequences followed by simulated CRC errors on log recovery. The latter testing has proven useful in shaking out a few bugs, but I have still reproduced fs inconsistency after a couple hundred iterations or so. That said, I suspect the problems at this point are either actual logging problems (e.g., all of the EFI/EFD logging patches and whatnot originated from this kind of testing) or due to the nature of the error simulation. In short, it simulates log corruption moreso than torn writes because it injects errors at recovery time. The log buffers are written successfully at shutdown time and therefore I believe it's still possible for the filesystem to have modifications that depend on committed transactions (which are ultimately skipped if a crc error is simulated). I've marked this patch RFC for the time being because I'd like to try and come up with something a bit more deterministic, if possible (so long as it can be done reasonably simply). For example, perhaps we can replace it with a similar debug mode that intentionally corrupts a crc at write time and shuts down the fs on write completion such that the AIL is not updated and there is less risk of inconsistency due to writing back metadata items in the "corrupted" log buffer(s). Anyways, the current patch is included so the current test procedure is documented, reviewable and repeatable. Patch 1 is a bug fix for a problem exposed by this mechanism. Patches 2-6 are primarily refactoring and introduce the CRC-check-only log recovery pass. Patch 7 enables log head/tail torn write detection. Patch 8 implements the DEBUG mode error injection mechanism described above. Thoughts, reviews, flames appreciated. Brian v1: - Added bug fix for mkfs log record header inconsistency. - Refactored log recovery code to support a CRC-check-only recovery pass. - CRC verify the last 8 records behind the head to account for concurrent log writes. - Verify the tail of the log as well when the head is torn. - Added (rfc) crc error injection patch for testing purposes. rfc: http://oss.sgi.com/pipermail/xfs/2015-July/042415.html Brian Foster (8): xfs: detect and handle invalid iclog size set by mkfs xfs: refactor log record unpack and data processing xfs: refactor and open code log record crc check xfs: return start block of first bad log record during recovery xfs: support a crc verification only log record pass xfs: refactor log record start detection into a new helper xfs: detect and trim torn writes during log recovery xfs: debug mode log recovery crc error injection fs/xfs/libxfs/xfs_log_recover.h | 1 + fs/xfs/xfs_globals.c | 1 + fs/xfs/xfs_log_recover.c | 646 +++++++++++++++++++++++++++++++++------- fs/xfs/xfs_sysctl.h | 1 + fs/xfs/xfs_sysfs.c | 31 ++ 5 files changed, 574 insertions(+), 106 deletions(-) -- 2.1.0 From bfoster@redhat.com Mon Nov 9 14:21:22 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D7A937F5F for ; Mon, 9 Nov 2015 14:21:22 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id BA2D5304043 for ; Mon, 9 Nov 2015 12:21:19 -0800 (PST) X-ASG-Debug-ID: 1447100478-04cb6c296ddb280001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id AtxGpm2DWQaRFMhh (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 12:21:18 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 1D9FCC0032F3 for ; Mon, 9 Nov 2015 20:21:18 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9KLHZx017094 for ; Mon, 9 Nov 2015 15:21:17 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 16CBC12503C; Mon, 9 Nov 2015 15:21:16 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 6/8] xfs: refactor log record start detection into a new helper Date: Mon, 9 Nov 2015 15:21:13 -0500 X-ASG-Orig-Subj: [PATCH 6/8] xfs: refactor log record start detection into a new helper Message-Id: <1447100475-33465-7-git-send-email-bfoster@redhat.com> In-Reply-To: <1447100475-33465-1-git-send-email-bfoster@redhat.com> References: <1447100475-33465-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447100478 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 As part of the head/tail discovery process, log recovery locates the head block and then reverse seeks to find the start of the last active record in the log. This is non-trivial as the record itself could have wrapped around the end of the physical log. Log recovery torn write detection potentially needs to walk further behind the last record in the log, as multiple log I/Os can be in-flight at one time during a crash event. Therefore, refactor the reverse log record header search mechanism into a new helper that supports the ability to seek past an arbitrary number of log records (or until the tail is hit). Update the head/tail search mechanism to call the new helper, but otherwise there is no change in log recovery behavior. Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 118 +++++++++++++++++++++++++++++++++-------------- 1 file changed, 83 insertions(+), 35 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index ae514df..1b3f8fe 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -868,6 +868,79 @@ validate_head: } /* + * Seek backwards in the log for log record headers. + * + * Given a starting log block, walk backwards until we find the provided number + * of records or hit the provided tail block. The return value is the number of + * records encountered or a negative error code. The log block and buffer + * pointer of the last record seen are returned in rblk and rhead respectively. + */ +STATIC int +xlog_rseek_logrec_hdr( + struct xlog *log, + xfs_daddr_t head_blk, + xfs_daddr_t tail_blk, + int count, + struct xfs_buf *bp, + xfs_daddr_t *rblk, + struct xlog_rec_header **rhead, + bool *wrapped) +{ + int i; + int error; + int found = 0; + char *offset = NULL; + xfs_daddr_t end_blk; + + *wrapped = false; + + /* + * Walk backwards from the head block until we hit the tail or the first + * block in the log. + */ + end_blk = head_blk > tail_blk ? tail_blk : 0; + for (i = (int) head_blk - 1; i >= end_blk; i--) { + error = xlog_bread(log, i, 1, bp, &offset); + if (error) + goto out_error; + + if (*(__be32 *) offset == cpu_to_be32(XLOG_HEADER_MAGIC_NUM)) { + *rblk = i; + *rhead = (struct xlog_rec_header *) offset; + if (++found == count) + break; + } + } + + /* + * If we haven't hit the tail block or the log record header count, + * start looking again from the end of the physical log. Note that + * callers can pass head == tail if the tail is not yet known. + */ + if (tail_blk >= head_blk && found != count) { + for (i = log->l_logBBsize - 1; i >= (int) tail_blk; i--) { + error = xlog_bread(log, i, 1, bp, &offset); + if (error) + goto out_error; + + if (*(__be32 *)offset == + cpu_to_be32(XLOG_HEADER_MAGIC_NUM)) { + *wrapped = true; + *rblk = i; + *rhead = (struct xlog_rec_header *) offset; + if (++found == count) + break; + } + } + } + + return found; + +out_error: + return error; +} + +/* * Find the sync block number or the tail of the log. * * This will be the block number of the last record to have its @@ -898,8 +971,7 @@ xlog_find_tail( xfs_daddr_t after_umount_blk; xfs_lsn_t tail_lsn; int hblks; - - found = 0; + bool wrapped = false; /* * Find previous log record @@ -923,37 +995,16 @@ xlog_find_tail( } /* - * Search backwards looking for log record header block + * Search backwards through the log looking for the log record header + * block. This wraps all the way back around to the head so something is + * seriously wrong if we can't find it. */ ASSERT(*head_blk < INT_MAX); - for (i = (int)(*head_blk) - 1; i >= 0; i--) { - error = xlog_bread(log, i, 1, bp, &offset); - if (error) - goto done; - - if (*(__be32 *)offset == cpu_to_be32(XLOG_HEADER_MAGIC_NUM)) { - found = 1; - break; - } - } - /* - * If we haven't found the log record header block, start looking - * again from the end of the physical log. XXXmiken: There should be - * a check here to make sure we didn't search more than N blocks in - * the previous code. - */ - if (!found) { - for (i = log->l_logBBsize - 1; i >= (int)(*head_blk); i--) { - error = xlog_bread(log, i, 1, bp, &offset); - if (error) - goto done; - - if (*(__be32 *)offset == - cpu_to_be32(XLOG_HEADER_MAGIC_NUM)) { - found = 2; - break; - } - } + found = xlog_rseek_logrec_hdr(log, *head_blk, *head_blk, 1, bp, &i, + &rhead, &wrapped); + if (found < 0) { + error = found; + goto done; } if (!found) { xfs_warn(log->l_mp, "%s: couldn't find sync record", __func__); @@ -961,9 +1012,6 @@ xlog_find_tail( ASSERT(0); return -EIO; } - - /* find blk_no of tail of log */ - rhead = (xlog_rec_header_t *)offset; *tail_blk = BLOCK_LSN(be64_to_cpu(rhead->h_tail_lsn)); /* @@ -979,7 +1027,7 @@ xlog_find_tail( log->l_prev_block = i; log->l_curr_block = (int)*head_blk; log->l_curr_cycle = be32_to_cpu(rhead->h_cycle); - if (found == 2) + if (wrapped) log->l_curr_cycle++; atomic64_set(&log->l_tail_lsn, be64_to_cpu(rhead->h_tail_lsn)); atomic64_set(&log->l_last_sync_lsn, be64_to_cpu(rhead->h_lsn)); -- 2.1.0 From bfoster@redhat.com Mon Nov 9 14:21:22 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F2A137F60 for ; Mon, 9 Nov 2015 14:21:22 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id E3F088F8033 for ; Mon, 9 Nov 2015 12:21:22 -0800 (PST) X-ASG-Debug-ID: 1447100478-04cbb02425e5330001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 21YG5caSiQcYtT8F (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 12:21:18 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 3504DAA5 for ; Mon, 9 Nov 2015 20:21:18 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9KLH4A014078 for ; Mon, 9 Nov 2015 15:21:17 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 25410125041; Mon, 9 Nov 2015 15:21:16 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 7/8] xfs: detect and trim torn writes during log recovery Date: Mon, 9 Nov 2015 15:21:14 -0500 X-ASG-Orig-Subj: [PATCH 7/8] xfs: detect and trim torn writes during log recovery Message-Id: <1447100475-33465-8-git-send-email-bfoster@redhat.com> In-Reply-To: <1447100475-33465-1-git-send-email-bfoster@redhat.com> References: <1447100475-33465-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447100478 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Certain types of storage, such as persistent memory, do not provide sector atomicity for writes. This means that if a crash occurs while XFS is writing log records, only part of those records might make it to the storage. This is problematic because log recovery uses the cycle value packed at the top of each log block to locate the head/tail of the log. This can lead to CRC verification failures during log recovery and an unmountable fs for a filesystem that is otherwise consistent. Update log recovery to incorporate log record CRC verification as part of the head/tail discovery process. Once the head is located via the traditional algorithm, run a CRC-only pass over the records up to the head of the log. If CRC verification fails, assume that the records are torn as a matter of policy and trim the head block back to the start of the first bad record. Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 298 ++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 279 insertions(+), 19 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 1b3f8fe..83fd7ca 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -61,6 +61,9 @@ xlog_recover_check_summary( #else #define xlog_recover_check_summary(log) #endif +STATIC int +xlog_do_recovery_pass( + struct xlog *, xfs_daddr_t, xfs_daddr_t, int, xfs_daddr_t *); /* * This structure is used during recovery to record the buf log items which @@ -941,6 +944,270 @@ out_error: } /* + * Seek forward in the log for log record headers. + * + * Given head and tail blocks, walk forward from the tail block until we find + * the provided number of records or hit the head block. The return value is the + * number of records encountered or a negative error code. The log block and + * buffer pointer of the last record seen are returned in rblk and rhead + * respectively. + */ +STATIC int +xlog_seek_logrec_hdr( + struct xlog *log, + xfs_daddr_t head_blk, + xfs_daddr_t tail_blk, + int count, + struct xfs_buf *bp, + xfs_daddr_t *rblk, + struct xlog_rec_header **rhead, + bool *wrapped) +{ + int i; + int error; + int found = 0; + char *offset = NULL; + xfs_daddr_t end_blk; + + *wrapped = false; + + /* + * Walk forward from the tail block until we hit the head or the last + * block in the log. + */ + end_blk = head_blk > tail_blk ? head_blk : log->l_logBBsize - 1; + for (i = (int) tail_blk; i <= end_blk; i++) { + error = xlog_bread(log, i, 1, bp, &offset); + if (error) + goto out_error; + + if (*(__be32 *) offset == cpu_to_be32(XLOG_HEADER_MAGIC_NUM)) { + *rblk = i; + *rhead = (struct xlog_rec_header *) offset; + if (++found == count) + break; + } + } + + /* + * If we haven't hit the head block or the log record header count, + * start looking again from the start of the physical log. + */ + if (tail_blk > head_blk && found != count) { + for (i = 0; i < (int) head_blk; i++) { + error = xlog_bread(log, i, 1, bp, &offset); + if (error) + goto out_error; + + if (*(__be32 *)offset == + cpu_to_be32(XLOG_HEADER_MAGIC_NUM)) { + *wrapped = true; + *rblk = i; + *rhead = (struct xlog_rec_header *) offset; + if (++found == count) + break; + } + } + } + + return found; + +out_error: + return error; +} + +/* + * Check the log tail for torn writes. This is required when torn writes are + * detected at the head and the head had to be walked back to a previous record. + * The tail of the previous record must now be verified to ensure the torn + * writes didn't corrupt the previous tail. + * + * Return an error if CRC verification fails as recovery cannot proceed. + */ +STATIC int +xlog_verify_tail( + struct xlog *log, + xfs_daddr_t head_blk, + xfs_daddr_t tail_blk) +{ + struct xlog_rec_header *thead; + struct xfs_buf *bp; + xfs_daddr_t first_bad; + int count; + int error = 0; + bool wrapped; + xfs_daddr_t tmp_head; + + bp = xlog_get_bp(log, 1); + if (!bp) + return -ENOMEM; + + /* + * Seek XLOG_MAX_ICLOGS + 1 records past the current tail record to get + * a temporary head block that points after the last possible + * concurrently written record of the tail. + */ + count = xlog_seek_logrec_hdr(log, head_blk, tail_blk, + XLOG_MAX_ICLOGS + 1, bp, &tmp_head, &thead, + &wrapped); + if (count < 0) { + error = count; + goto out; + } + + /* + * If the call above didn't find XLOG_MAX_ICLOGS + 1 records, we ran + * into the actual log head. tmp_head points to the start of the record + * so update it to the actual head block. + */ + if (count < XLOG_MAX_ICLOGS + 1) + tmp_head = head_blk; + + /* + * We now have a tail and temporary head block that covers at least + * XLOG_MAX_ICLOGS records from the tail. We need to verify that these + * records were completely written. Run a CRC verification pass from + * tail to head and return the result. + */ + error = xlog_do_recovery_pass(log, tmp_head, tail_blk, + XLOG_RECOVER_CRCPASS, &first_bad); + +out: + xlog_put_bp(bp); + return error; +} + +/* + * Detect and trim torn writes from the head of the log. + * + * Storage without sector atomicity guarantees can result in torn writes in the + * log in the event of a crash. Our only means to detect this scenario is via + * CRC verification. While we can't always be certain that CRC verification + * failure is due to a torn write vs. an unrelated corruption, we do know that + * only a certain number (XLOG_MAX_ICLOGS) of log records can be written out at + * one time. Therefore, CRC verify up to XLOG_MAX_ICLOGS records at the head of + * the log and treat failures in this range as torn writes as a matter of + * policy. In the event of CRC failure, the head is walked back to the last good + * record in the log and the tail is updated from that record and verified. + */ +STATIC int +xlog_verify_head( + struct xlog *log, + xfs_daddr_t *head_blk, /* in/out: unverified head */ + xfs_daddr_t *tail_blk, /* out: tail block */ + struct xfs_buf *bp, + xfs_daddr_t *rhead_blk, /* start blk of last record */ + struct xlog_rec_header **rhead, /* ptr to last record */ + bool *wrapped) /* last rec. wraps phys. log */ +{ + struct xlog_rec_header *tmp_rhead; + struct xfs_buf *tmp_bp; + xfs_daddr_t first_bad; + xfs_daddr_t tmp_rhead_blk; + int found; + int error; + bool tmp_wrapped; + + /* + * Search backwards through the log looking for the log record header + * block. This wraps all the way back around to the head so something is + * seriously wrong if we can't find it. + */ + found = xlog_rseek_logrec_hdr(log, *head_blk, *head_blk, 1, bp, rhead_blk, + rhead, wrapped); + if (found < 0) + return found; + if (!found) { + xfs_warn(log->l_mp, "%s: couldn't find sync record", __func__); + return -EIO; + } + + *tail_blk = BLOCK_LSN(be64_to_cpu((*rhead)->h_tail_lsn)); + + /* + * Now that we have a tail block, check the head of the log for torn + * writes. Search again until we hit the tail or the maximum number of + * log record I/Os that could have been in flight at one time. Use a + * temporary buffer so we don't trash the rhead/bp pointer from the + * call above. + */ + tmp_bp = xlog_get_bp(log, 1); + if (!tmp_bp) + return -ENOMEM; + error = xlog_rseek_logrec_hdr(log, *head_blk, *tail_blk, + XLOG_MAX_ICLOGS, tmp_bp, &tmp_rhead_blk, + &tmp_rhead, &tmp_wrapped); + xlog_put_bp(tmp_bp); + if (error < 0) + return error; + + /* + * Now run a CRC verification pass over the records starting at the + * block found above to the current head. If a CRC failure occurs, the + * log block of the first bad record is saved in first_bad. + */ + error = xlog_do_recovery_pass(log, *head_blk, tmp_rhead_blk, + XLOG_RECOVER_CRCPASS, &first_bad); + if (error == -EFSBADCRC && first_bad != *tail_blk) { + /* + * We've hit a potential torn write. Reset the error and warn + * about it. + */ + error = 0; + xfs_warn(log->l_mp, +"WARNING: torn write (CRC failure) detected at block 0x%llx, recovery truncated", + first_bad); + + /* + * Get the header block and buffer pointer for the last good + * record before the bad record. + * + * Note that xlog_find_tail() clears the blocks at the new head + * (i.e., the records with invalid CRC) if the cycle number + * matches the the current cycle. + */ + found = xlog_rseek_logrec_hdr(log, first_bad, *tail_blk, 1, bp, + rhead_blk, rhead, wrapped); + if (found < 0) + return found; + if (found == 0) /* XXX: right thing to do here? */ + return -EIO; + + /* + * Reset the head block to the starting block of the first bad + * log record and set the tail block based on the last good + * record. + */ + *head_blk = first_bad; + *tail_blk = BLOCK_LSN(be64_to_cpu((*rhead)->h_tail_lsn)); + + /* + * Now verify the tail based on the updated head. This is + * required because the torn writes trimmed from the head could + * have been written over the tail of a previous record. Return + * any errors since recovery cannot proceed if the tail is + * corrupt. + * + * XXX: This leaves a gap in truly robust protection from torn + * writes in the log. If the head is behind the tail, the tail + * pushes forward to create some space and then a crash occurs + * causing the writes into the previous record's tail region to + * tear, log recovery isn't able to recover. + * + * How likely is this to occur? If possible, can we do something + * more intelligent here? Is it safe to push the tail forward if + * we can determine that the tail is within the range of the + * torn write (e.g., the kernel can only overwrite the tail if + * it has actually been pushed forward)? Alternatively, could we + * somehow prevent this condition at runtime? + */ + error = xlog_verify_tail(log, *head_blk, *tail_blk); + } + + return error; +} + +/* * Find the sync block number or the tail of the log. * * This will be the block number of the last record to have its @@ -966,9 +1233,10 @@ xlog_find_tail( xlog_op_header_t *op_head; char *offset = NULL; xfs_buf_t *bp; - int error, i, found; + int error; xfs_daddr_t umount_data_blk; xfs_daddr_t after_umount_blk; + xfs_daddr_t rhead_blk; xfs_lsn_t tail_lsn; int hblks; bool wrapped = false; @@ -995,24 +1263,16 @@ xlog_find_tail( } /* - * Search backwards through the log looking for the log record header - * block. This wraps all the way back around to the head so something is - * seriously wrong if we can't find it. + * Trim the head block back to skip over torn records. We can have + * multiple log I/Os in flight at any time, so we assume CRC failures + * back through the previous several records are torn writes and skip + * them. */ ASSERT(*head_blk < INT_MAX); - found = xlog_rseek_logrec_hdr(log, *head_blk, *head_blk, 1, bp, &i, - &rhead, &wrapped); - if (found < 0) { - error = found; + error = xlog_verify_head(log, head_blk, tail_blk, bp, &rhead_blk, + &rhead, &wrapped); + if (error) goto done; - } - if (!found) { - xfs_warn(log->l_mp, "%s: couldn't find sync record", __func__); - xlog_put_bp(bp); - ASSERT(0); - return -EIO; - } - *tail_blk = BLOCK_LSN(be64_to_cpu(rhead->h_tail_lsn)); /* * Reset log values according to the state of the log when we @@ -1024,7 +1284,7 @@ xlog_find_tail( * written was complete and ended exactly on the end boundary * of the physical log. */ - log->l_prev_block = i; + log->l_prev_block = rhead_blk; log->l_curr_block = (int)*head_blk; log->l_curr_cycle = be32_to_cpu(rhead->h_cycle); if (wrapped) @@ -1062,12 +1322,12 @@ xlog_find_tail( } else { hblks = 1; } - after_umount_blk = (i + hblks + (int) + after_umount_blk = (rhead_blk + hblks + (int) BTOBB(be32_to_cpu(rhead->h_len))) % log->l_logBBsize; tail_lsn = atomic64_read(&log->l_tail_lsn); if (*head_blk == after_umount_blk && be32_to_cpu(rhead->h_num_logops) == 1) { - umount_data_blk = (i + hblks) % log->l_logBBsize; + umount_data_blk = (rhead_blk + hblks) % log->l_logBBsize; error = xlog_bread(log, umount_data_blk, 1, bp, &offset); if (error) goto done; -- 2.1.0 From bfoster@redhat.com Mon Nov 9 14:21:23 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7EB4C7F5F for ; Mon, 9 Nov 2015 14:21:23 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id ED309AC005 for ; Mon, 9 Nov 2015 12:21:22 -0800 (PST) X-ASG-Debug-ID: 1447100477-04cbb02423e5320001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Y9ajW1GL5dx9BJwo (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 12:21:18 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 86AB2A3259 for ; Mon, 9 Nov 2015 20:21:17 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tA9KLHw7017084 for ; Mon, 9 Nov 2015 15:21:17 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id CE80812500F; Mon, 9 Nov 2015 15:21:15 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 1/8] xfs: detect and handle invalid iclog size set by mkfs Date: Mon, 9 Nov 2015 15:21:08 -0500 X-ASG-Orig-Subj: [PATCH 1/8] xfs: detect and handle invalid iclog size set by mkfs Message-Id: <1447100475-33465-2-git-send-email-bfoster@redhat.com> In-Reply-To: <1447100475-33465-1-git-send-email-bfoster@redhat.com> References: <1447100475-33465-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447100477 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS log records have separate fields for the record size and the iclog size used to write the record. mkfs.xfs zeroes the log and writes an unmount record to generate a clean log for the subsequent mount. The userspace record logging code has a bug where the iclog size (h_size) field of the log record is hardcoded to 32k, even if a log stripe unit is specified. The log record length is correctly extended to the stripe unit. Since the kernel log recovery code uses the h_size field to determine the log buffer size, this means that the kernel can attempt to read/process records larger than the buffer size and overrun the buffer. This has historically not been a problem because the kernel doesn't actually run through log recovery in the clean unmount case. Instead, the kernel detects that a single unmount record exists between the head and tail and pushes the tail forward such that the log is viewed as clean (head == tail). Once CRC verification is enabled, however, all records at the head of the log are verified for CRC errors and thus we are susceptible to overrun problems if the iclog field is not correct. While the core problem must be fixed in userspace, this is historical behavior that must be detected in the kernel to avoid severe side effects such as memory corruption and crashes. Update the log buffer size calculation code to detect this condition, warn the user and resize the log buffer based on the log stripe unit. Return a corruption error in cases where this does not look like a clean filesystem (i.e., the log record header indicates more than one operation). Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index f8f1363..b00c85e 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4245,7 +4245,7 @@ xlog_do_recovery_pass( xfs_daddr_t blk_no; char *offset; xfs_buf_t *hbp, *dbp; - int error = 0, h_size; + int error = 0, h_size, h_len; int bblks, split_bblks; int hblks, split_hblks, wrapped_hblks; struct hlist_head rhash[XLOG_RHASH_SIZE]; @@ -4274,7 +4274,31 @@ xlog_do_recovery_pass( error = xlog_valid_rec_header(log, rhead, tail_blk); if (error) goto bread_err1; + + /* + * xfsprogs has a bug where record length is based on lsunit but + * h_size (iclog size) is hardcoded to 32k. Now that we + * unconditionally CRC verify the unmount record, this means the + * log buffer can be too small for the record and cause an + * overrun. + * + * Detect this condition here. Use lsunit for the buffer size as + * long as this looks like the mkfs case. Otherwise, return an + * error to avoid a buffer overrun. + */ h_size = be32_to_cpu(rhead->h_size); + h_len = be32_to_cpu(rhead->h_len); + if (h_len > h_size) { + if (h_len <= log->l_mp->m_logbsize && + be32_to_cpu(rhead->h_num_logops) == 1) { + xfs_warn(log->l_mp, + "invalid iclog size (%d bytes), using lsunit (%d bytes)", + h_size, log->l_mp->m_logbsize); + h_size = log->l_mp->m_logbsize; + } else + return -EFSCORRUPTED; + } + if ((be32_to_cpu(rhead->h_version) & XLOG_VERSION_2) && (h_size > XLOG_HEADER_CYCLE_SIZE)) { hblks = h_size / XLOG_HEADER_CYCLE_SIZE; -- 2.1.0 From david@fromorbit.com Mon Nov 9 15:36:23 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 078587CBF for ; Mon, 9 Nov 2015 15:36:23 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id DC24A304051 for ; Mon, 9 Nov 2015 13:36:19 -0800 (PST) X-ASG-Debug-ID: 1447104973-04cb6c296bdccb0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id Rdo213LmUdqwScx2 for ; Mon, 09 Nov 2015 13:36:14 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CPBwBmEEFWPGfGLHleKAECgxBTb4ZcpF4DAQEBBosyhSyCfYEOGYVxBAICgURNAQEBAQEBBwEBAQFBP4Q2AQEEOhwjEAgDGAklDwUlAwcaE4gtwXwBAQEHAgEgGYV0hUWIJIEVBZZIhR6IAYIsjQiNGYR7KjSFZgEBAQ Received: from ppp121-44-198-103.lns20.syd7.internode.on.net (HELO dastard) ([121.44.198.103]) by ipmail06.adl6.internode.on.net with ESMTP; 10 Nov 2015 08:05:21 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zvu5w-0006OK-5V; Tue, 10 Nov 2015 08:35:20 +1100 Date: Tue, 10 Nov 2015 08:35:20 +1100 From: Dave Chinner To: "Darrick J. Wong" Cc: Christoph Hellwig , xfs@oss.sgi.com Subject: Re: [PATCH v2 03/51] xfs_io: support reflink and dedupe of file ranges Message-ID: <20151109213520.GB14311@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 03/51] xfs_io: support reflink and dedupe of file ranges References: <20151007050513.1504.28089.stgit@birch.djwong.org> <20151007050533.1504.66249.stgit@birch.djwong.org> <20151014053656.GJ10397@birch.djwong.org> <20151109075438.GA17974@infradead.org> <20151109183311.GA3255@birch.djwong.org> <20151109185724.GB2224@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151109185724.GB2224@birch.djwong.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1447104973 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24250 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Mon, Nov 09, 2015 at 10:57:24AM -0800, Darrick J. Wong wrote: > On Mon, Nov 09, 2015 at 10:33:12AM -0800, Darrick J. Wong wrote: > > On Sun, Nov 08, 2015 at 11:54:38PM -0800, Christoph Hellwig wrote: > > > Any reason why the dedup command is called 'dedupe'? Is this a revenge > > > for the missing 'e' in the creat syscall? :) > > > > Heh, sure! :) > > > > I stuck on the 'e' because the btrfs tool is 'duperemove', not 'dupremove'. > > > > (I have no preference either way.) > > > > > Either way it would be good to get this support in ASAP so we can have > > > the command ready for xfstests and we can merge the test. They are > > > useful for btrfs and NFS already, so I'd love to fast track them. > > Oh. Heh. I forgot that Dave merged the v1 patch into for-next after I'd posted > the v2 patch. So ... I thought I'd convinced him to revert the v1 patch and > stuff in the v2 patch, but that hasn't shown up on kernel.org. > > -ETOOMANYPATCHES :( Need to push it out - I have an updated branch here, just been delayed in testing and pushing out progs-4.3-rc2. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Nov 9 18:16:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B1BF27CBF for ; Mon, 9 Nov 2015 18:16:09 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9B2AC304043 for ; Mon, 9 Nov 2015 16:16:06 -0800 (PST) X-ASG-Debug-ID: 1447114562-04cb6c296ddfc90001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id Ex7njdqqJv3zanON for ; Mon, 09 Nov 2015 16:16:02 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DyCADwNUFWPGfGLHleKAECgxAjMG+GXKRHAhYBAQEBAQEGgQ2KJYUsgn2BDhcChXEEgURNAQEBAQEBBwEBAQFAAT+FEjskNAUlAwctiC2hPqBoCRmFdIpsghQMQRyBFQWWSIUeiAGOb41egi0MgkIqNINmJYEjAQEB Received: from ppp121-44-198-103.lns20.syd7.internode.on.net (HELO dastard) ([121.44.198.103]) by ipmail06.adl6.internode.on.net with ESMTP; 10 Nov 2015 10:46:01 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZvwbQ-0006eZ-TC for xfs@oss.sgi.com; Tue, 10 Nov 2015 11:16:00 +1100 Date: Tue, 10 Nov 2015 11:16:00 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [ANNOUNCE] xfs: for-next branch updated to 4e14e49 Message-ID: <20151110001600.GC14311@dastard> X-ASG-Orig-Subj: [ANNOUNCE] xfs: for-next branch updated to 4e14e49 MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="x+6KMIRAuhnl3hBn" Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1447114562 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24255 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- --x+6KMIRAuhnl3hBn Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi folks, The for-next branch of the xfs kernel repository at git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git has just been updated. it contains the couple of outstanding fixes for the 4.4 merge window. This is essentially what I'll ask linus to pull in the next couple of days. -Dave. The new head of the for-next branch is commit: 4e14e49 Merge branch 'xfs-misc-fixes-for-4.4-3' into for-next New Commits: Andreas Gruenbacher (1): [edfb8eb] xfs: Fix error path in xfs_get_acl Brian Foster (1): [848ccfc] xfs: fix log recovery op header validation assert Chris Mason (1): [7a29ac4] xfs: give all workqueues rescuer threads Dave Chinner (1): [4e14e49] Merge branch 'xfs-misc-fixes-for-4.4-3' into for-next Code Diffstat: fs/xfs/xfs_acl.c | 1 + fs/xfs/xfs_acl.h | 1 - fs/xfs/xfs_log_recover.c | 2 +- fs/xfs/xfs_super.c | 7 ++++--- 4 files changed, 6 insertions(+), 5 deletions(-) --=20 Dave Chinner david@fromorbit.com --x+6KMIRAuhnl3hBn Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJWQTdAAAoJEK3oKUf0dfod6zIQAIb00jj80mY//9XAIaNi4uJr n9O0eyUhdBkR6dNTw8TR/HZRK5Huhf7cCnPfQTT2TWTOtYBDo91rP3EEtgkMwqaB vgCqXHREX2lhwqeaNZjqInZYVi3GiKpCSLAsEYHbgfVjzyZMBQhk/ZSkjAAFX53v 9kAJL7lDOlEtKoSJv2rX71HJNJLzQLpQytHFFsWE9bLR7WOOU5CiuG863hfX/tPW IhKa0BglVxBEfT3T9rIlI8Gsl+Nu4CFVF4Hkh9ptT7IY1rZEJ51nvTFus162P4oE OX9pHPTSbRqUEwSeg8ZkfDqN8HE4zja0GYckXSJRjCeQYZefQSlAOOo7JMB8VNIk vUYC2wh5AGkgChQw4h5ALyrGkWXR5554xqh3R23SQIWnoxswnVHxq/3SaqaZcOD8 /fLRM8G5j6r481dkjPu8DNt0BhIedympklzZ9C4ku8EzL75iTji0gDexdbKMZCGa UiPK3nYDs2Bjn+GNZe4ZtIx1XiH7iUQVMFLjvIyelePZdBjndRBMKBBN/3v7Oo3O 2gGo/boLgLCsM/leV+eAHne4cFHoOXluFsVB2wBPjghAC8iZpkarHUlR9imdEvZ+ BqkLguMeHxX2/S+VhADtGeIUFcI6fruxnO6T7sB91KF+0JqZALBRYy1uQEe+HamN VFjnM6R4uqkH/xgv4Va0 =US5V -----END PGP SIGNATURE----- --x+6KMIRAuhnl3hBn-- From david@fromorbit.com Mon Nov 9 23:14:22 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id F26447CBF for ; Mon, 9 Nov 2015 23:14:21 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 747E6AC005 for ; Mon, 9 Nov 2015 21:14:18 -0800 (PST) X-ASG-Debug-ID: 1447132453-04cb6c296be4f20001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id qcivuGx5WO6YexbV for ; Mon, 09 Nov 2015 21:14:13 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2C9CADDe0FWPGfGLHleKAECgxAjMG+CXoN+pEkCHAaBDYolIYULgn2BDhcGhW0EgUZNAQEBAQEBBwEBAQFAAT+FEjskNAUlAwctiC2hR6BuCRmFdIpsghQMQRyBFQWHRI8EhR6IAYFjSYN3iEyFCohUgjmCQio0hS4BAQE Received: from ppp121-44-198-103.lns20.syd7.internode.on.net (HELO dastard) ([121.44.198.103]) by ipmail06.adl6.internode.on.net with ESMTP; 10 Nov 2015 15:43:56 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zw1Fj-0007BD-SV for xfs@oss.sgi.com; Tue, 10 Nov 2015 16:13:55 +1100 Date: Tue, 10 Nov 2015 16:13:55 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [ANNOUNCE] xfsprogs: v4.3.0-rc2 released Message-ID: <20151110051355.GD14311@dastard> X-ASG-Orig-Subj: [ANNOUNCE] xfsprogs: v4.3.0-rc2 released MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="neYutvxvOLaeuPCA" Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1447132453 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24264 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- --neYutvxvOLaeuPCA Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi folks, The xfsprogs repository at: git://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git has just been updated. This contains the few fixes and cleanups that were pending from the 4.3.0-rc1 release as well as a couple of new fixes that have been posted since. Please test, I'm planning on a 4.3.0 release early next week if no problems are reported in the next few days... -Dave. The new head of the master branch is commit: af37ed4 xfsprogs: Release v4.3.0-rc2 New Commits: Darrick J. Wong (2): [a9b61ce] libxcmd: provide a common function to report command runtim= es [2afac83] io: update reflink/dedupe ioctl definitions Dave Chinner (2): [5cfd2d5] headers: remove definition of ASSERT from xfs.h [af37ed4] xfsprogs: Release v4.3.0-rc2 Jan Tulak (1): [7141fc5] xfsprogs: make fsr use mntinfo when there is no mntent Ville Skytt=E4 (2): [2e53a4f] xfs_db.8: Remove stray backslash near bmap [6222418] mkfs.xfs.8: Spelling fix Code Diffstat: VERSION | 2 +- configure.ac | 2 +- doc/CHANGES | 8 ++ fsr/Makefile | 8 ++ fsr/xfs_fsr.c | 113 ++++++++++-------- include/command.h | 6 + include/darwin.h | 62 ++++++++++ include/freebsd.h | 29 +++++ include/gnukfreebsd.h | 28 +++++ include/irix.h | 29 +++++ include/linux.h | 28 +++++ include/platform_defs.h.in | 6 + include/xfs.h | 6 - io/Makefile | 2 +- io/dedupe.c | 190 ----------------------------- io/init.c | 1 - io/io.h | 1 - io/pread.c | 16 +-- io/pwrite.c | 17 +-- io/reflink.c | 289 ++++++++++++++++++++++++++++++++++-------= ---- io/sendfile.c | 16 +-- libxcmd/command.c | 27 +++++ libxfs/xfs_fs.h | 25 ++-- man/man8/mkfs.xfs.8 | 2 +- man/man8/xfs_db.8 | 2 +- man/man8/xfs_io.8 | 29 ++--- 26 files changed, 544 insertions(+), 400 deletions(-) delete mode 100644 io/dedupe.c --=20 Dave Chinner david@fromorbit.com --neYutvxvOLaeuPCA Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJWQX0TAAoJEK3oKUf0dfodZiUQAL0kSok4voiuiE1YEqGDIYUC 5TApAKGHXoHNlHEwr9pEPVM/seVsM8kZH69nKt/Y2tOkDSbmfq3crfLJM2hnuc3Z f7kpqBg+Nj31l2+mIKNJHw6cvo4bqE/xHS31d6dbUyPPm4qVxTx3EicXZOs6aHVA jWBXKjwVFpGrSQ8vJcI7+98SF/O8QV+csER10tHgk0P8qX+C99q9SGxeaxl2nwju RhQ2Db9s/JJ/EPJnRRaozkRAMGBxqhi/m9eE+fFtGhz4Ea0Nk7aiEPRu9RE75qYw UMEsFylHwwZIrYsVO+lel1aIl4aoashEy+W190MWS0KQqht9W0WYkmMBokvCpS8V 2U8OnsNrGH/MIuEROlpwbs+ovhRJxDQ3mtlk8xIrv42kJpHiEaK2PzxlChw2WCji 2v+VYgipDkn7XxIWaWndF5C8A/ozLGOn1h6VfA+vvl37Ao7ofMl0bvMVVPTZ+v8t 5U9NjLzaQaFJZQRoeXW0S4Z1NvzBe0UH8XlzO/YWkTkdrBfaLMHqpFx5ZxsVBw/h taygi2eyvKzdyV4/Mz0aDZAAZIrqQR7gtuoo7fmCE20gePveyFh7GUG5YCAvQxKv M6igJUcrl/SlGHi+x6Ne4EU+Evdtd0fEI3MW6w/pOdqli/qig61v65ewwguzh6Hn 3Y1cabbfapxfCb7p6gwu =pfQn -----END PGP SIGNATURE----- --neYutvxvOLaeuPCA-- From darrick.wong@oracle.com Tue Nov 10 00:28:25 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D51C27CBF for ; Tue, 10 Nov 2015 00:28:25 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id B40938F8033 for ; Mon, 9 Nov 2015 22:28:25 -0800 (PST) X-ASG-Debug-ID: 1447136903-04cbb02425f5ab0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id qFq4vRCSHHSTrux0 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 09 Nov 2015 22:28:23 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tAA6Rx22021952 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 10 Nov 2015 06:28:00 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tAA6RxUb012023 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Tue, 10 Nov 2015 06:27:59 GMT Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tAA6RxQH019814; Tue, 10 Nov 2015 06:27:59 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 09 Nov 2015 22:27:59 -0800 Date: Mon, 9 Nov 2015 22:27:58 -0800 From: "Darrick J. Wong" To: Dave Chinner Cc: Christoph Hellwig , xfs@oss.sgi.com Subject: Re: [PATCH v2 03/51] xfs_io: support reflink and dedupe of file ranges Message-ID: <20151110062758.GG3255@birch.djwong.org> X-ASG-Orig-Subj: Re: [PATCH v2 03/51] xfs_io: support reflink and dedupe of file ranges References: <20151007050513.1504.28089.stgit@birch.djwong.org> <20151007050533.1504.66249.stgit@birch.djwong.org> <20151014053656.GJ10397@birch.djwong.org> <20151109075438.GA17974@infradead.org> <20151109183311.GA3255@birch.djwong.org> <20151109185724.GB2224@birch.djwong.org> <20151109213520.GB14311@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151109213520.GB14311@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447136903 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24265 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Tue, Nov 10, 2015 at 08:35:20AM +1100, Dave Chinner wrote: > On Mon, Nov 09, 2015 at 10:57:24AM -0800, Darrick J. Wong wrote: > > On Mon, Nov 09, 2015 at 10:33:12AM -0800, Darrick J. Wong wrote: > > > On Sun, Nov 08, 2015 at 11:54:38PM -0800, Christoph Hellwig wrote: > > > > Any reason why the dedup command is called 'dedupe'? Is this a revenge > > > > for the missing 'e' in the creat syscall? :) > > > > > > Heh, sure! :) > > > > > > I stuck on the 'e' because the btrfs tool is 'duperemove', not 'dupremove'. > > > > > > (I have no preference either way.) > > > > > > > Either way it would be good to get this support in ASAP so we can have > > > > the command ready for xfstests and we can merge the test. They are > > > > useful for btrfs and NFS already, so I'd love to fast track them. > > > > Oh. Heh. I forgot that Dave merged the v1 patch into for-next after I'd posted > > the v2 patch. So ... I thought I'd convinced him to revert the v1 patch and > > stuff in the v2 patch, but that hasn't shown up on kernel.org. > > > > -ETOOMANYPATCHES :( > > Need to push it out - I have an updated branch here, just been > delayed in testing and pushing out progs-4.3-rc2. Ok, thanks, I'll rebase and give the tests a spin in the morning. --D > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From david@fromorbit.com Tue Nov 10 00:30:56 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BF72E7F37 for ; Tue, 10 Nov 2015 00:30:56 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id A54C38F8033 for ; Mon, 9 Nov 2015 22:30:56 -0800 (PST) X-ASG-Debug-ID: 1447137051-04cbb02422f6030001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id YR13hsAChCmANwsA for ; Mon, 09 Nov 2015 22:30:51 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2C+CACNjkFWPGfGLHleKAECgxAjMG+CXoN+pEoCHAaBDYolIYULgn2BDhcChXEEgTpNAQEBAQEBBwEBAQFAAT+Edhw7JDQFJQMHLR6ID6FGoHsZhXSINoRKDEEcgRUFh0SPBIUeiAGBY0mMQ4UKiFSCLQw7HYFqKjQBAQEBhSoBAQE Received: from ppp121-44-198-103.lns20.syd7.internode.on.net (HELO dastard) ([121.44.198.103]) by ipmail06.adl6.internode.on.net with ESMTP; 10 Nov 2015 17:00:21 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zw2RJ-0007Js-MZ for xfs@oss.sgi.com; Tue, 10 Nov 2015 17:29:57 +1100 Date: Tue, 10 Nov 2015 17:29:57 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [ANNOUNCE] xfsdump: v3.1.6 released Message-ID: <20151110062957.GE14311@dastard> X-ASG-Orig-Subj: [ANNOUNCE] xfsdump: v3.1.6 released MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1447137051 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24265 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi folks, The xfsdump repositories have just been updated and tagged with the v3.1.6 release tag. This is an update to fix the building of the xfsdump package on systems that have xfsprogs 4.2.0 or later installed on them. The source code can be found in these git repositories: git://oss.sgi.com/xfs/cmds/xfsdump v3.1.6 git://git.kernel.org/pub/scm/fs/xfs/xfsdump-dev.git v3.1.6 A signed gzipped-tar archive of the source code is available here: ftp://oss.sgi.com/projects/xfs/cmd_tars/xfsdump-3.1.6.tar.gz ftp://oss.sgi.com/projects/xfs/cmd_tars/xfsdump-3.1.6.tar.gz.sign The archive is signed with my gpg key (the same one that this release announcement is signed with). -Dave. The new head of the master branch is commit: f2a518a xfsdump: Release v3.1.6 New Commits: Dave Chinner (9): [9d8bde8] cleanup: get rid of ASSERT [ff46015] build: don't rely on xfs/xfs.h to include necessary headers [3518475] cleanup: kill intgen_t [508ae35] cleanup: kill u_int*_t types [86252eb] cleanup: define a local xfs_ino_t [6fad1f8] cleanup: use system uuid.h headers [2f529f0] cleanup: move fold_t out of util.h [65c91e1] cleanup: Kill unnecessary xfs includes [f2a518a] xfsdump: Release v3.1.6 Code Diffstat: VERSION | 2 +- common/arch_xlate.c | 8 +- common/arch_xlate.h | 4 +- common/cldmgr.c | 24 +- common/cldmgr.h | 2 +- common/cleanup.c | 7 +- common/content.h | 8 +- common/content_common.c | 23 +- common/content_inode.h | 78 +++--- common/dlog.c | 27 +- common/dlog.h | 2 +- common/drive.c | 33 +-- common/drive.h | 48 ++-- common/drive_minrmt.c | 654 +++++++++++++++++++++++------------------------ common/drive_scsitape.c | 662 ++++++++++++++++++++++++------------------------ common/drive_simple.c | 246 +++++++++--------- common/exit.h | 2 +- common/fs.c | 43 ++-- common/fs.h | 8 +- common/global.c | 49 ++-- common/global.h | 10 +- common/hsmapi.c | 26 +- common/hsmapi.h | 16 +- common/inventory.c | 42 +-- common/inventory.h | 6 +- common/lock.c | 7 +- common/main.c | 183 ++++++------- common/media.c | 28 +- common/media.h | 10 +- common/mlog.c | 113 ++++++--- common/mlog.h | 22 +- common/openutil.c | 39 +-- common/openutil.h | 14 +- common/path.c | 32 ++- common/qlock.c | 51 ++-- common/rec_hdr.h | 4 +- common/ring.c | 74 +++--- common/ring.h | 4 +- common/stream.c | 31 +-- common/stream.h | 6 +- common/types.h | 35 ++- common/util.c | 147 ++++------- common/util.h | 53 ++-- configure.ac | 2 +- debian/changelog | 6 + doc/CHANGES | 5 + dump/content.c | 414 +++++++++++++++--------------- dump/inomap.c | 216 ++++++++-------- dump/inomap.h | 19 +- dump/var.c | 13 +- include/config.h.in | 49 +++- inventory/inv_api.c | 51 ++-- inventory/inv_core.c | 30 ++- inventory/inv_files.c | 15 +- inventory/inv_fstab.c | 17 +- inventory/inv_idx.c | 48 ++-- inventory/inv_mgr.c | 25 +- inventory/inv_oref.c | 83 +++--- inventory/inv_oref.h | 34 +-- inventory/inv_priv.h | 102 ++++---- inventory/inv_stobj.c | 95 +++---- inventory/inventory.h | 14 +- inventory/testmain.c | 40 +-- invutil/cmenu.c | 4 + invutil/fstab.c | 4 + invutil/invidx.c | 13 +- invutil/invutil.c | 5 + invutil/list.c | 4 +- invutil/menu.c | 4 +- invutil/screen.c | 4 + invutil/stobj.c | 5 + librmt/rmtabort.c | 1 + librmt/rmtclose.c | 1 + librmt/rmtcommand.c | 2 + librmt/rmtfstat.c | 2 + librmt/rmtioctl.c | 11 +- librmt/rmtlib.h | 3 - librmt/rmtlseek.c | 2 + librmt/rmtmsg.c | 5 + librmt/rmtopen.c | 4 +- librmt/rmtread.c | 2 + librmt/rmtstatus.c | 2 + librmt/rmtwrite.c | 2 + restore/bag.c | 24 +- restore/content.c | 466 +++++++++++++++++----------------- restore/dirattr.c | 202 ++++++++------- restore/dirattr.h | 12 +- restore/inomap.c | 102 ++++---- restore/inomap.h | 8 +- restore/mmap.c | 1 - restore/namreg.c | 56 ++-- restore/namreg.h | 4 +- restore/node.c | 97 +++---- restore/node.h | 4 +- restore/tree.c | 295 ++++++++++----------- restore/tree.h | 4 +- restore/win.c | 76 +++--- restore/win.h | 4 +- 98 files changed, 2942 insertions(+), 2654 deletions(-) -- Dave Chinner david@fromorbit.com From conatct@bluetrade195.eu Tue Nov 10 04:05:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.6 required=5.0 tests=HTML_IMAGE_RATIO_04, HTML_MESSAGE,LOTS_OF_MONEY,SUBJECT_NEEDS_ENCODING,T_DKIM_INVALID, T_REMOTE_IMAGE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 685217F37 for ; 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--------------030701010808070405050509-- From BATV+25f5049bfd0fd9a4203a+4461+infradead.org+hch@bombadil.srs.infradead.org Tue Nov 10 05:29:59 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 709887F37 for ; Tue, 10 Nov 2015 05:29:59 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5C94630404E for ; Tue, 10 Nov 2015 03:29:55 -0800 (PST) X-ASG-Debug-ID: 1447154993-04cbb02423fd020001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id BiED0EmQKGE1b9or (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 03:29:53 -0800 (PST) X-Barracuda-Envelope-From: BATV+25f5049bfd0fd9a4203a+4461+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zw77P-0004ed-LP; Tue, 10 Nov 2015 11:29:43 +0000 Date: Tue, 10 Nov 2015 03:29:43 -0800 From: Christoph Hellwig To: Andreas Gruenbacher Cc: Alexander Viro , Theodore Ts'o , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Subject: Re: [PATCH v15 00/22] Richacls (Core and Ext4) Message-ID: <20151110112943.GA17038@infradead.org> X-ASG-Orig-Subj: Re: [PATCH v15 00/22] Richacls (Core and Ext4) References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447067343-31479-1-git-send-email-agruenba@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447154993 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24270 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Mon, Nov 09, 2015 at 12:08:41PM +0100, Andreas Gruenbacher wrote: > Here is another update to the richacl patch queue. This posting contains > the patches ready to be merged; the patches later in the queue still need > some more review. It still has the same crappy fs interfaces with lots of boilerplate code and still abuses xattrs instead of a proper syscall interface. That's far from being ready to merge. From agruenba@redhat.com Tue Nov 10 06:40:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4B7147F37 for ; Tue, 10 Nov 2015 06:40:01 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id BC8EBAC006 for ; Tue, 10 Nov 2015 04:39:57 -0800 (PST) X-ASG-Debug-ID: 1447159193-04cb6c296cfa5a0001-NocioJ Received: from mail-lb0-f171.google.com (mail-lb0-f171.google.com [209.85.217.171]) by cuda.sgi.com with ESMTP id YIE75fD44v0P69LQ (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 04:39:54 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.217.171 Received: by lbbkw15 with SMTP id kw15so113136693lbb.0 for ; Tue, 10 Nov 2015 04:39:53 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=QQXuSTpPTtmPHjtL2SUT+49LlIAWIF4h/tQb/bgPpu4=; b=iWphnu7U0Ju4nfsEYiEZg7Ha9bDAHwKYckdnW2055fuiO/CdhvMFYAEFK6YWsebttU kKwF0fAdaIQyXud6VSTpwq+qK2XNq5ExUrqdzFdwfTfAFSlBrCfouVXzoFcxbe3uwwYd Yd/VIZSCTZi6RuE2tjphaTEb3LMRXL+UyLDwtr4+6/SLsRsaTltJ3/NUhhfGfh0d9726 S7fj6+3Gi5lB4xrnl+/pnQ51Is42k4YlJvSde5fVmkkE1Xb6xOdkd9XsSfJxKlKRYQEU nFQevk/jKGVZYYW0noIH2IPd4XVptcEIoz8rUie7a8l8dSljWWRb9S6CjhifvM5NHqfJ AriQ== X-Gm-Message-State: ALoCoQmrm6hjvO+dx72ZkBM6nrLNrZ7xkMNXuFSBRBSgYiAgueD++P+C/Ho38Jc58IAEco56HzeV MIME-Version: 1.0 X-Received: by 10.112.16.162 with SMTP id h2mr1583279lbd.89.1447159192959; Tue, 10 Nov 2015 04:39:52 -0800 (PST) Received: by 10.112.53.42 with HTTP; Tue, 10 Nov 2015 04:39:52 -0800 (PST) In-Reply-To: <20151110112943.GA17038@infradead.org> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> <20151110112943.GA17038@infradead.org> Date: Tue, 10 Nov 2015 13:39:52 +0100 Message-ID: Subject: Re: [PATCH v15 00/22] Richacls (Core and Ext4) From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v15 00/22] Richacls (Core and Ext4) To: Christoph Hellwig Cc: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lb0-f171.google.com[209.85.217.171] X-Barracuda-Start-Time: 1447159194 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24271 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Nov 10, 2015 at 12:29 PM, Christoph Hellwig wrote: > On Mon, Nov 09, 2015 at 12:08:41PM +0100, Andreas Gruenbacher wrote: >> Here is another update to the richacl patch queue. This posting contains >> the patches ready to be merged; the patches later in the queue still need >> some more review. > > It still has the same crappy fs interfaces with lots of boilerplate > code Could you please be more specific so that I can trace this complaint to some actual code? > and still abuses xattrs instead of a proper syscall interface. > That's far from being ready to merge. The xattr syscall interface is what's used for very similar kinds of things today; using it for richacls as well sure does not count as abuse. Things could be improved in the xattr interface and in its implementation, but we need more substantial reasons than that for reimplementing the wheel once again. [The recently discussed xattr fixes (http://permalink.gmane.org/gmane.linux.file-systems/101502) and two small POSIX ACL fixes (http://permalink.gmane.org/gmane.linux.file-systems/101499) are currently stuck waiting for Al, by the way.] Thanks, Andreas From bfoster@redhat.com Tue Nov 10 06:54:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 831157F37 for ; Tue, 10 Nov 2015 06:54:09 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 718B58F8033 for ; Tue, 10 Nov 2015 04:54:06 -0800 (PST) X-ASG-Debug-ID: 1447160044-04cb6c296cfaba0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id o8DdPx4ELZdoYJM3 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 10 Nov 2015 04:54:05 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 9EFB6A4514; Tue, 10 Nov 2015 12:54:04 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAACs4iG019750; Tue, 10 Nov 2015 07:54:04 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 6FE38125010; Tue, 10 Nov 2015 07:54:03 -0500 (EST) Date: Tue, 10 Nov 2015 07:54:03 -0500 From: Brian Foster To: Jia He Cc: xfs@oss.sgi.com Subject: Re: [PATCH] libxfs: Optimize the loop for xfs_bitmap_empty Message-ID: <20151110125403.GC21670@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] libxfs: Optimize the loop for xfs_bitmap_empty References: <1447079482-10650-1-git-send-email-hejianet@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447079482-10650-1-git-send-email-hejianet@gmail.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447160045 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 09, 2015 at 10:31:22PM +0800, Jia He wrote: > If there is any non zero bit in a long bitmap, it can jump out of the for > loop and finish the function as soon as possible. > > Signed-off-by: Jia He > Cc: Dave Chinner > Cc: Brian Foster > --- > fs/xfs/libxfs/xfs_bit.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/fs/xfs/libxfs/xfs_bit.c b/fs/xfs/libxfs/xfs_bit.c > index 0e8885a..84614b0 100644 > --- a/fs/xfs/libxfs/xfs_bit.c > +++ b/fs/xfs/libxfs/xfs_bit.c > @@ -36,6 +36,8 @@ xfs_bitmap_empty(uint *map, uint size) > > for (i = 0; i < size; i++) { > ret |= map[i]; > + if (ret != 0) > + return 0; > } > Seems Ok to me, but if we're going to do this, why not just kill ret entirely? For example, check 'if (map[i] != 0) return 0;' in the loop and unconditionally return 1 if we make it to the end. Brian > return (ret == 0); > -- > 2.5.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Nov 10 07:45:25 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 550C97F37 for ; Tue, 10 Nov 2015 07:45:25 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id E1525AC004 for ; Tue, 10 Nov 2015 05:45:21 -0800 (PST) X-ASG-Debug-ID: 1447163120-04bdf03f03f6970001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Sn4SmNAyDyavnEqO (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 10 Nov 2015 05:45:20 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 0F385A381D for ; Tue, 10 Nov 2015 13:45:20 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAADjJS5020459 for ; Tue, 10 Nov 2015 08:45:19 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 9D802125010; Tue, 10 Nov 2015 08:45:18 -0500 (EST) Date: Tue, 10 Nov 2015 08:45:18 -0500 From: Brian Foster To: xfs@oss.sgi.com Subject: Re: [PATCH 7/8] xfs: detect and trim torn writes during log recovery Message-ID: <20151110134518.GD21670@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 7/8] xfs: detect and trim torn writes during log recovery References: <1447100475-33465-1-git-send-email-bfoster@redhat.com> <1447100475-33465-8-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447100475-33465-8-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447163120 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 09, 2015 at 03:21:14PM -0500, Brian Foster wrote: > Certain types of storage, such as persistent memory, do not provide > sector atomicity for writes. This means that if a crash occurs while XFS > is writing log records, only part of those records might make it to the > storage. This is problematic because log recovery uses the cycle value > packed at the top of each log block to locate the head/tail of the log. > This can lead to CRC verification failures during log recovery and an > unmountable fs for a filesystem that is otherwise consistent. > > Update log recovery to incorporate log record CRC verification as part > of the head/tail discovery process. Once the head is located via the > traditional algorithm, run a CRC-only pass over the records up to the > head of the log. If CRC verification fails, assume that the records are > torn as a matter of policy and trim the head block back to the start of > the first bad record. > > Signed-off-by: Brian Foster > --- > fs/xfs/xfs_log_recover.c | 298 ++++++++++++++++++++++++++++++++++++++++++++--- > 1 file changed, 279 insertions(+), 19 deletions(-) > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index 1b3f8fe..83fd7ca 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c ... > +STATIC int > +xlog_verify_head( > + struct xlog *log, > + xfs_daddr_t *head_blk, /* in/out: unverified head */ > + xfs_daddr_t *tail_blk, /* out: tail block */ > + struct xfs_buf *bp, > + xfs_daddr_t *rhead_blk, /* start blk of last record */ > + struct xlog_rec_header **rhead, /* ptr to last record */ > + bool *wrapped) /* last rec. wraps phys. log */ > +{ > + struct xlog_rec_header *tmp_rhead; > + struct xfs_buf *tmp_bp; > + xfs_daddr_t first_bad; > + xfs_daddr_t tmp_rhead_blk; > + int found; > + int error; > + bool tmp_wrapped; > + > + /* > + * Search backwards through the log looking for the log record header > + * block. This wraps all the way back around to the head so something is > + * seriously wrong if we can't find it. > + */ > + found = xlog_rseek_logrec_hdr(log, *head_blk, *head_blk, 1, bp, rhead_blk, > + rhead, wrapped); > + if (found < 0) > + return found; > + if (!found) { > + xfs_warn(log->l_mp, "%s: couldn't find sync record", __func__); > + return -EIO; > + } > + > + *tail_blk = BLOCK_LSN(be64_to_cpu((*rhead)->h_tail_lsn)); > + > + /* > + * Now that we have a tail block, check the head of the log for torn > + * writes. Search again until we hit the tail or the maximum number of > + * log record I/Os that could have been in flight at one time. Use a > + * temporary buffer so we don't trash the rhead/bp pointer from the > + * call above. > + */ > + tmp_bp = xlog_get_bp(log, 1); > + if (!tmp_bp) > + return -ENOMEM; > + error = xlog_rseek_logrec_hdr(log, *head_blk, *tail_blk, > + XLOG_MAX_ICLOGS, tmp_bp, &tmp_rhead_blk, > + &tmp_rhead, &tmp_wrapped); > + xlog_put_bp(tmp_bp); > + if (error < 0) > + return error; > + > + /* > + * Now run a CRC verification pass over the records starting at the > + * block found above to the current head. If a CRC failure occurs, the > + * log block of the first bad record is saved in first_bad. > + */ > + error = xlog_do_recovery_pass(log, *head_blk, tmp_rhead_blk, > + XLOG_RECOVER_CRCPASS, &first_bad); > + if (error == -EFSBADCRC && first_bad != *tail_blk) { I started playing around with an alternate error injection mechanism that actually writes out an invalid crc record, aborts on log write completion and shuts down the fs. With that, I hit an interesting problem with the first_bad != *tail_blk check in that we don't fix up the head if the first record written after a covered log is torn and points to itself as the tail. We end up failing the mount (which is what would happen currently, anyways), but this should probably be fixed up. Unfortunately I didn't sufficiently document why I had that check there. I suspect it is a remnant of an old version that didn't update the tail when the head was truncated back (before I fully grokked what was necessary here), and then ran into issues further along when the head == tail. This version obviously updates and verifies the tail once it finds a valid head so I can probably just kill the check. Perhaps I'll replace it with a head == tail check after the head/tail update to simply bail out and let normal recovery try to run. Brian > + /* > + * We've hit a potential torn write. Reset the error and warn > + * about it. > + */ > + error = 0; > + xfs_warn(log->l_mp, > +"WARNING: torn write (CRC failure) detected at block 0x%llx, recovery truncated", > + first_bad); > + > + /* > + * Get the header block and buffer pointer for the last good > + * record before the bad record. > + * > + * Note that xlog_find_tail() clears the blocks at the new head > + * (i.e., the records with invalid CRC) if the cycle number > + * matches the the current cycle. > + */ > + found = xlog_rseek_logrec_hdr(log, first_bad, *tail_blk, 1, bp, > + rhead_blk, rhead, wrapped); > + if (found < 0) > + return found; > + if (found == 0) /* XXX: right thing to do here? */ > + return -EIO; > + > + /* > + * Reset the head block to the starting block of the first bad > + * log record and set the tail block based on the last good > + * record. > + */ > + *head_blk = first_bad; > + *tail_blk = BLOCK_LSN(be64_to_cpu((*rhead)->h_tail_lsn)); > + > + /* > + * Now verify the tail based on the updated head. This is > + * required because the torn writes trimmed from the head could > + * have been written over the tail of a previous record. Return > + * any errors since recovery cannot proceed if the tail is > + * corrupt. > + * > + * XXX: This leaves a gap in truly robust protection from torn > + * writes in the log. If the head is behind the tail, the tail > + * pushes forward to create some space and then a crash occurs > + * causing the writes into the previous record's tail region to > + * tear, log recovery isn't able to recover. > + * > + * How likely is this to occur? If possible, can we do something > + * more intelligent here? Is it safe to push the tail forward if > + * we can determine that the tail is within the range of the > + * torn write (e.g., the kernel can only overwrite the tail if > + * it has actually been pushed forward)? Alternatively, could we > + * somehow prevent this condition at runtime? > + */ > + error = xlog_verify_tail(log, *head_blk, *tail_blk); > + } > + > + return error; > +} > + > +/* > * Find the sync block number or the tail of the log. > * > * This will be the block number of the last record to have its > @@ -966,9 +1233,10 @@ xlog_find_tail( > xlog_op_header_t *op_head; > char *offset = NULL; > xfs_buf_t *bp; > - int error, i, found; > + int error; > xfs_daddr_t umount_data_blk; > xfs_daddr_t after_umount_blk; > + xfs_daddr_t rhead_blk; > xfs_lsn_t tail_lsn; > int hblks; > bool wrapped = false; > @@ -995,24 +1263,16 @@ xlog_find_tail( > } > > /* > - * Search backwards through the log looking for the log record header > - * block. This wraps all the way back around to the head so something is > - * seriously wrong if we can't find it. > + * Trim the head block back to skip over torn records. We can have > + * multiple log I/Os in flight at any time, so we assume CRC failures > + * back through the previous several records are torn writes and skip > + * them. > */ > ASSERT(*head_blk < INT_MAX); > - found = xlog_rseek_logrec_hdr(log, *head_blk, *head_blk, 1, bp, &i, > - &rhead, &wrapped); > - if (found < 0) { > - error = found; > + error = xlog_verify_head(log, head_blk, tail_blk, bp, &rhead_blk, > + &rhead, &wrapped); > + if (error) > goto done; > - } > - if (!found) { > - xfs_warn(log->l_mp, "%s: couldn't find sync record", __func__); > - xlog_put_bp(bp); > - ASSERT(0); > - return -EIO; > - } > - *tail_blk = BLOCK_LSN(be64_to_cpu(rhead->h_tail_lsn)); > > /* > * Reset log values according to the state of the log when we > @@ -1024,7 +1284,7 @@ xlog_find_tail( > * written was complete and ended exactly on the end boundary > * of the physical log. > */ > - log->l_prev_block = i; > + log->l_prev_block = rhead_blk; > log->l_curr_block = (int)*head_blk; > log->l_curr_cycle = be32_to_cpu(rhead->h_cycle); > if (wrapped) > @@ -1062,12 +1322,12 @@ xlog_find_tail( > } else { > hblks = 1; > } > - after_umount_blk = (i + hblks + (int) > + after_umount_blk = (rhead_blk + hblks + (int) > BTOBB(be32_to_cpu(rhead->h_len))) % log->l_logBBsize; > tail_lsn = atomic64_read(&log->l_tail_lsn); > if (*head_blk == after_umount_blk && > be32_to_cpu(rhead->h_num_logops) == 1) { > - umount_data_blk = (i + hblks) % log->l_logBBsize; > + umount_data_blk = (rhead_blk + hblks) % log->l_logBBsize; > error = xlog_bread(log, umount_data_blk, 1, bp, &offset); > if (error) > goto done; > -- > 2.1.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Nov 10 09:42:19 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F06237F37 for ; Tue, 10 Nov 2015 09:42:19 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id DCDBC8F8040 for ; Tue, 10 Nov 2015 07:42:19 -0800 (PST) X-ASG-Debug-ID: 1447170138-04cbb02423103a10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id fsbVRZsGNRX82HVB (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 10 Nov 2015 07:42:18 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 57051C0AEE5E for ; Tue, 10 Nov 2015 15:42:18 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAAFgHTm013564 for ; Tue, 10 Nov 2015 10:42:18 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id E3E83125010; Tue, 10 Nov 2015 10:42:16 -0500 (EST) Date: Tue, 10 Nov 2015 10:42:16 -0500 From: Brian Foster To: xfs@oss.sgi.com Subject: Re: [PATCH 4/8] xfs: return start block of first bad log record during recovery Message-ID: <20151110154216.GE21670@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 4/8] xfs: return start block of first bad log record during recovery References: <1447100475-33465-1-git-send-email-bfoster@redhat.com> <1447100475-33465-5-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447100475-33465-5-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447170138 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 09, 2015 at 03:21:11PM -0500, Brian Foster wrote: > Each log recovery pass walks from the tail block to the head block and > processes records appropriately based on the associated log pass type. > There are various failure conditions that can occur through this > sequence, such as I/O errors, CRC errors, etc. Log torn write detection > will perform CRC verification near the head of the log to detect torn > writes and trim torn records from the log appropriately. > > As it is, xlog_do_recovery_pass() only returns an error code in the > event of CRC failure, which isn't enough information to trim the head of > the log. Update xlog_do_recovery_pass() to optionally return the start > block of the associated record when an error occurs. This patch contains > no functional changes. > > Signed-off-by: Brian Foster > --- > fs/xfs/xfs_log_recover.c | 19 +++++++++++++++---- > 1 file changed, 15 insertions(+), 4 deletions(-) > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index c2bf307..2ef0880 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -4239,10 +4239,12 @@ xlog_do_recovery_pass( > struct xlog *log, > xfs_daddr_t head_blk, > xfs_daddr_t tail_blk, > - int pass) > + int pass, > + xfs_daddr_t *first_bad) /* out: first bad log rec */ > { > xlog_rec_header_t *rhead; > xfs_daddr_t blk_no; > + xfs_daddr_t rhead_blk; > char *offset; > xfs_buf_t *hbp, *dbp; > int error = 0, h_size, h_len; > @@ -4251,6 +4253,7 @@ xlog_do_recovery_pass( > struct hlist_head rhash[XLOG_RHASH_SIZE]; > > ASSERT(head_blk != tail_blk); > + rhead_blk = 0; > > /* > * Read the header of the tail block and get the iclog buffer size from > @@ -4325,7 +4328,7 @@ xlog_do_recovery_pass( > } > > memset(rhash, 0, sizeof(rhash)); > - blk_no = tail_blk; > + blk_no = rhead_blk = tail_blk; > if (tail_blk > head_blk) { > /* > * Perform recovery around the end of the physical log. > @@ -4436,7 +4439,9 @@ xlog_do_recovery_pass( > pass); > if (error) > goto bread_err2; > + > blk_no += bblks; > + rhead_blk = blk_no; > } > > ASSERT(blk_no >= log->l_logBBsize); There's a rewind of blk_no (not shown in this patch) between the above loop and the subsequent loop to handle wrapping around the end of the log. We need to update rhead_blk there as well. Otherwise, if the first record processed in the following loop is bad, rhead_blk can still point beyond the end of the log and thus throw off all of the recovery bits that follow. Brian > @@ -4464,13 +4469,19 @@ xlog_do_recovery_pass( > error = xlog_recover_process(log, rhash, rhead, offset, pass); > if (error) > goto bread_err2; > + > blk_no += bblks + hblks; > + rhead_blk = blk_no; > } > > bread_err2: > xlog_put_bp(dbp); > bread_err1: > xlog_put_bp(hbp); > + > + if (error && first_bad) > + *first_bad = rhead_blk; > + > return error; > } > > @@ -4508,7 +4519,7 @@ xlog_do_log_recovery( > INIT_LIST_HEAD(&log->l_buf_cancel_table[i]); > > error = xlog_do_recovery_pass(log, head_blk, tail_blk, > - XLOG_RECOVER_PASS1); > + XLOG_RECOVER_PASS1, NULL); > if (error != 0) { > kmem_free(log->l_buf_cancel_table); > log->l_buf_cancel_table = NULL; > @@ -4519,7 +4530,7 @@ xlog_do_log_recovery( > * When it is complete free the table of buf cancel items. > */ > error = xlog_do_recovery_pass(log, head_blk, tail_blk, > - XLOG_RECOVER_PASS2); > + XLOG_RECOVER_PASS2, NULL); > #ifdef DEBUG > if (!error) { > int i; > -- > 2.1.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From smfrench@gmail.com Tue Nov 10 10:44:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id EDD667F37 for ; Tue, 10 Nov 2015 10:44:09 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id DCFD4304032 for ; Tue, 10 Nov 2015 08:44:06 -0800 (PST) X-ASG-Debug-ID: 1447173845-04cb6c296d1011b0001-NocioJ Received: from mail-ig0-f181.google.com (mail-ig0-f181.google.com [209.85.213.181]) by cuda.sgi.com with ESMTP id 7FqBOFkQsde6YNQk (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 08:44:05 -0800 (PST) X-Barracuda-Envelope-From: smfrench@gmail.com X-Barracuda-RBL-Trusted-Forwarder: 209.85.213.181 Received: by igl9 with SMTP id 9so57452570igl.0 for ; Tue, 10 Nov 2015 08:44:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=SxjVrZPsF0ZqDYE//hZLdZ83d381gAqLq6th42j1qZs=; b=BeX8T6nMyIG8mgdKxiOOoTGvl1ROPaLJqYxoKtSoMRKmISxSu7D3HBxk243SwsT+q3 s/NsP80zdtin/UFmRKTqIWCmKJzrHluKJfCjUJzx0Ttpwj3QyfmMz/tzsorEYwoRV6xZ 7K2LtUSAGrekDfZ42lqbPZv+m2uJumMTJIg7rIy43NTw3RrweR43OdXEFIaen1nxQ6rx 2PuxC3UO0EudMasQTHp7CTOpFStnumEAz267XN47xv0WuaNLwv7ulal9IP5JaUQddgdl cN1q96TcPUbh8+NFE0vqYgmel7erSYmCiu7ZMlRWsvlerD4OqQAj3SUNiNuG1Q9ImNdf AJsQ== X-Received: by 10.50.20.167 with SMTP id o7mr4680725ige.44.1447173845598; Tue, 10 Nov 2015 08:44:05 -0800 (PST) MIME-Version: 1.0 Received: by 10.79.116.213 with HTTP; Tue, 10 Nov 2015 08:43:46 -0800 (PST) In-Reply-To: References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> <20151110112943.GA17038@infradead.org> From: Steve French Date: Tue, 10 Nov 2015 10:43:46 -0600 Message-ID: Subject: Re: [PATCH v15 00/22] Richacls (Core and Ext4) To: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v15 00/22] Richacls (Core and Ext4) Cc: Christoph Hellwig , Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , "linux-cifs@vger.kernel.org" , Linux API Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-ig0-f181.google.com[209.85.213.181] X-Barracuda-Start-Time: 1447173845 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24275 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Tue, Nov 10, 2015 at 6:39 AM, Andreas Gruenbacher wrote: > On Tue, Nov 10, 2015 at 12:29 PM, Christoph Hellwig wrote: >> On Mon, Nov 09, 2015 at 12:08:41PM +0100, Andreas Gruenbacher wrote: >>> Here is another update to the richacl patch queue. This posting contains >>> the patches ready to be merged; the patches later in the queue still need >>> some more review. >> and still abuses xattrs instead of a proper syscall interface. >> That's far from being ready to merge. > > The xattr syscall interface is what's used for very similar kinds of > things today; using it for richacls as well sure does not count as > abuse. Things could be improved in the xattr interface and in its > implementation, but we need more substantial reasons than that for > reimplementing the wheel once again. I don't have strong disagreement with using pseudo-xattrs to store/retrieve ACLs (we already do this) but retrieving/setting an ACL all at once can be awkward when ACLs are quite large e.g. when it encodes to over 1MB (not all administrators think about the size of ACLs when they add hundreds of users or groups or apps to ACLs). The bigger problem is that when ACLs are created -- after -- the file is created there is a potential race (harder to deal with in cluster and network file systems). Ideally we should be able to optionally pass all the security information needed to create a file in the create call itself. For apps which don't care they can continue to use the old syscalls. In the meantime, I don't mind the approach of staging this in via a pseudo-xattr, Samba can deal with that (and it will make some of the backup and data movement tools easier for the cifs.ko client which currently rely on a cifs specific xattr). In cifs.ko I still need to enable the SMB3 ACL helper functions (currently only enabled for the older cifs dialect) since that will make it easier, and figure out a way to allow helper tools to view "claims based ACLs" (DAC), not just traditional CIFS/NTFS/SMB3/RichACLs. -- Thanks, Steve From debbugs@buxtehude.debian.org Tue Nov 10 10:45:10 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 3542A7F50 for ; Tue, 10 Nov 2015 10:45:10 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id C5ECEAC009 for ; Tue, 10 Nov 2015 08:45:09 -0800 (PST) X-ASG-Debug-ID: 1447173907-04bdf03f04fb440001-NocioJ Received: from buxtehude.debian.org (buxtehude.debian.org [140.211.166.26]) by cuda.sgi.com with ESMTP id kx4XKeDCqL35zZFR (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 08:45:07 -0800 (PST) X-Barracuda-Envelope-From: debbugs@buxtehude.debian.org X-Barracuda-Apparent-Source-IP: 140.211.166.26 Received: from debbugs by buxtehude.debian.org with local (Exim 4.84) (envelope-from ) id 1ZwC2b-0005YH-6j; Tue, 10 Nov 2015 16:45:05 +0000 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) Content-Type: text/plain; charset=utf-8 From: owner@bugs.debian.org (Debian Bug Tracking System) To: Steve McIntyre CC: xfs@oss.sgi.com Subject: Processed: Re: Bug#804255: Please update initramfs in postinst Message-ID: X-ASG-Orig-Subj: Processed: Re: Bug#804255: Please update initramfs in postinst References: <20151110164115.GG13015@einval.com> <20151106161941.15248.86048.reportbug@tack.local> X-Debian-PR-Package: xfsprogs X-Debian-PR-Source: xfsprogs X-Debian-PR-Message: transcript X-Loop: owner@bugs.debian.org Date: Tue, 10 Nov 2015 16:45:05 +0000 X-Barracuda-Connect: buxtehude.debian.org[140.211.166.26] X-Barracuda-Start-Time: 1447173907 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24275 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Processing control commands: > tag -1 +patch Bug #804255 [xfsprogs] Please update initramfs in postinst Added tag(s) patch. --=20 804255: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D804255 Debian Bug Tracking System Contact owner@bugs.debian.org with problems From debbugs@buxtehude.debian.org Tue Nov 10 10:45:11 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 60EAF7F50 for ; Tue, 10 Nov 2015 10:45:11 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id CE33FAC009 for ; Tue, 10 Nov 2015 08:45:10 -0800 (PST) X-ASG-Debug-ID: 1447173906-04cb6c296c101260001-NocioJ Received: from buxtehude.debian.org (buxtehude.debian.org [140.211.166.26]) by cuda.sgi.com with ESMTP id 3FFotjZeRqqoEmWI (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 08:45:07 -0800 (PST) X-Barracuda-Envelope-From: debbugs@buxtehude.debian.org X-Barracuda-Apparent-Source-IP: 140.211.166.26 Received: from debbugs by buxtehude.debian.org with local (Exim 4.84) (envelope-from ) id 1ZwC2a-0005Y3-8F; Tue, 10 Nov 2015 16:45:04 +0000 X-Loop: owner@bugs.debian.org Subject: Bug#804255: Please update initramfs in postinst Reply-To: Steve McIntyre , 804255@bugs.debian.org X-ASG-Orig-Subj: Bug#804255: Please update initramfs in postinst Resent-From: Steve McIntyre Resent-To: debian-bugs-dist@lists.debian.org Resent-CC: XFS Development Team X-Loop: owner@bugs.debian.org Resent-Date: Tue, 10 Nov 2015 16:45:02 +0000 Resent-Message-ID: X-Debian-PR-Message: followup 804255 X-Debian-PR-Package: xfsprogs X-Debian-PR-Keywords: d-i X-Debian-PR-Source: xfsprogs Received: via spool by 804255-submit@bugs.debian.org id=B804255.144717373620517 (code B ref 804255); Tue, 10 Nov 2015 16:45:02 +0000 Received: (at 804255) by bugs.debian.org; 10 Nov 2015 16:42:16 +0000 Received: from cheddar.halon.org.uk ([93.93.131.118]) by buxtehude.debian.org with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.84) (envelope-from ) id 1ZwBzs-0005KR-3X for 804255@bugs.debian.org; Tue, 10 Nov 2015 16:42:16 +0000 Received: from bsmtp by cheddar.halon.org.uk with local-bsmtp (Exim 4.80) (envelope-from ) id 1ZwBzm-0001o4-NH; Tue, 10 Nov 2015 16:42:10 +0000 Received: from steve by tack.local with local (Exim 4.84) (envelope-from ) id 1ZwByt-0004w3-OK; Tue, 10 Nov 2015 16:41:15 +0000 Date: Tue, 10 Nov 2015 16:41:15 +0000 From: Steve McIntyre To: Nathan Scott Cc: 804255@bugs.debian.org Message-ID: <20151110164115.GG13015@einval.com> References: <20151106161941.15248.86048.reportbug@tack.local> <1822095565.6959319.1447027220334.JavaMail.zimbra@redhat.com> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="2fHTh5uZTiUOsy+g" Content-Disposition: inline In-Reply-To: <1822095565.6959319.1447027220334.JavaMail.zimbra@redhat.com> X-attached: unknown User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: buxtehude.debian.org[140.211.166.26] X-Barracuda-Start-Time: 1447173907 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.75 X-Barracuda-Spam-Status: No, SCORE=0.75 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_RULE_7580D X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24275 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.75 BSF_RULE_7580D Custom Rule 7580D --2fHTh5uZTiUOsy+g Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Control: tag -1 +patch On Sun, Nov 08, 2015 at 07:00:20PM -0500, Nathan Scott wrote: >Hi Steve, > >----- Original Message ----- >> Package: xfsprogs >> Version: 3.2.1 >> Severity: important >> Tags: d-i >> >> To make this work well, all filesystem tools packages for filesystems >> that are likely to be used for / and/or /usr should call >> "update-initramfs -u" in their postinst. This will > >OK. > >> I've checked your package and I don't see any update-initramfs >> calls. > >(yep, xfsprogs has no postinst at all IIRC) > >> Please add one. If you'd like help doing that postinst work, I >> can supply a patch - just ask! > >That would be great, if you don't mind Steve? Many thanks! Here's a debdiff of what I've just built. Ignore the NMU version in the changelog... -- Steve McIntyre, Cambridge, UK. steve@einval.com The two hard things in computing: * naming things * cache invalidation * off-by-one errors -- Stig Sandbeck Mathisen --2fHTh5uZTiUOsy+g Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="xfsprogs_4.2.0.1.debdiff" diff -Nru xfsprogs-4.2.0/debian/changelog xfsprogs-4.2.0.1/debian/changelog --- xfsprogs-4.2.0/debian/changelog 2015-09-11 01:51:36.000000000 +0000 +++ xfsprogs-4.2.0.1/debian/changelog 2015-11-10 16:35:45.000000000 +0000 @@ -1,3 +1,11 @@ +xfsprogs (4.2.0.1) unstable; urgency=low + + * NMU + * * Add a postinst to update the initramfs on install/upgrade. + (Closes: #804255) + + -- Steve McIntyre <93sam@debian.org> Tue, 10 Nov 2015 16:33:59 +0000 + xfsprogs (4.2.0) unstable; urgency=low * New upstream release diff -Nru xfsprogs-4.2.0/debian/postinst xfsprogs-4.2.0.1/debian/postinst --- xfsprogs-4.2.0/debian/postinst 1970-01-01 00:00:00.000000000 +0000 +++ xfsprogs-4.2.0.1/debian/postinst 2015-11-10 16:35:20.000000000 +0000 @@ -0,0 +1,25 @@ +#!/bin/sh + +set -e + +case "${1}" in + configure) + if [ -x /usr/sbin/update-initramfs ] && [ -e /etc/initramfs-tools/initramfs.conf ] + then + update-initramfs -u + fi + ;; + + abort-upgrade|abort-remove|abort-deconfigure) + + ;; + + *) + echo "postinst called with unknown argument \`${1}'" >&2 + exit 1 + ;; +esac + +#DEBHELPER# + +exit 0 --2fHTh5uZTiUOsy+g-- From bfields@fieldses.org Tue Nov 10 11:07:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D795E7F3F for ; Tue, 10 Nov 2015 11:07:09 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id C6E2A8F8033 for ; Tue, 10 Nov 2015 09:07:06 -0800 (PST) X-ASG-Debug-ID: 1447175224-04cb6c296a101b60001-NocioJ Received: from fieldses.org (fieldses.org [173.255.197.46]) by cuda.sgi.com with ESMTP id ccqVrreBGDBRRPZ7 for ; Tue, 10 Nov 2015 09:07:04 -0800 (PST) X-Barracuda-Envelope-From: bfields@fieldses.org X-Barracuda-Apparent-Source-IP: 173.255.197.46 Received: by fieldses.org (Postfix, from userid 2815) id 47C953675; Tue, 10 Nov 2015 12:07:03 -0500 (EST) Date: Tue, 10 Nov 2015 12:07:03 -0500 From: "J. Bruce Fields" To: Steve French Cc: Andreas Gruenbacher , Christoph Hellwig , Alexander Viro , Theodore Ts'o , Andreas Dilger , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , "linux-cifs@vger.kernel.org" , Linux API Subject: Re: [PATCH v15 00/22] Richacls (Core and Ext4) Message-ID: <20151110170703.GB17530@fieldses.org> X-ASG-Orig-Subj: Re: [PATCH v15 00/22] Richacls (Core and Ext4) References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> <20151110112943.GA17038@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: fieldses.org[173.255.197.46] X-Barracuda-Start-Time: 1447175224 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_SA210e X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24276 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC5_SA210e Custom Rule SA210e On Tue, Nov 10, 2015 at 10:43:46AM -0600, Steve French wrote: > On Tue, Nov 10, 2015 at 6:39 AM, Andreas Gruenbacher > wrote: > > On Tue, Nov 10, 2015 at 12:29 PM, Christoph Hellwig wrote: > >> On Mon, Nov 09, 2015 at 12:08:41PM +0100, Andreas Gruenbacher wrote: > >>> Here is another update to the richacl patch queue. This posting contains > >>> the patches ready to be merged; the patches later in the queue still need > >>> some more review. > > >> and still abuses xattrs instead of a proper syscall interface. > >> That's far from being ready to merge. > > > > The xattr syscall interface is what's used for very similar kinds of > > things today; using it for richacls as well sure does not count as > > abuse. Things could be improved in the xattr interface and in its > > implementation, but we need more substantial reasons than that for > > reimplementing the wheel once again. > > I don't have strong disagreement with using pseudo-xattrs to > store/retrieve ACLs (we already do this) but retrieving/setting an ACL > all at once can be awkward when ACLs are quite large e.g. when it > encodes to over 1MB At least in the NFS case, that's also a limitation of the protocol. If we really wanted to support massive ACLs then we'd need both syscall and NFS interfaces to allow incrementally reading and writing ACLs, and I don't even know what those would look like. So this is a fine limitation as far as I'm concerned. > (not all administrators think about the size of > ACLs when they add hundreds of users or groups or apps to ACLs). > > The bigger problem is that when ACLs are created -- after -- the file > is created there is a potential race (harder to deal with in cluster > and network file systems). Ideally we should be able to optionally > pass all the security information needed to create a file in the > create call itself. For apps which don't care they can continue to > use the old syscalls. That would be most of them, I'd think. But I suppose windows apps (via Samba or Wine?) could use this. Definitely a project for another day, in any case. --b. > In cifs.ko I still need to enable the SMB3 ACL helper functions > (currently only enabled for the older cifs dialect) since that will > make it easier, and figure out a way to allow helper tools to view > "claims based ACLs" (DAC), not just traditional > CIFS/NTFS/SMB3/RichACLs. > -- > Thanks, > > Steve From agruenba@redhat.com Tue Nov 10 11:58:23 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3BF427F3F for ; Tue, 10 Nov 2015 11:58:23 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1ACB18F8033 for ; Tue, 10 Nov 2015 09:58:22 -0800 (PST) X-ASG-Debug-ID: 1447178300-04cb6c296d102ee0001-NocioJ Received: from mail-lb0-f174.google.com (mail-lb0-f174.google.com [209.85.217.174]) by cuda.sgi.com with ESMTP id 0cYAavlD9o7kZJcz (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 09:58:21 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.217.174 Received: by lbbcs9 with SMTP id cs9so2808182lbb.1 for ; Tue, 10 Nov 2015 09:58:19 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=0ZmcQWAGoeLVMQhM3YbEjW32MEAbvnfytSNDtUxK3Ps=; b=hRXi+XP6V8+JJaftzWv58vmw6A46susMMj+BtZwCsvFCxlT0m61vl4yWqX1s/gffkB N4c5xdMiBMxiiin0amUXaDJgSRd6h23EcbzMESkqs0IAvBI07+n6TMzfNYpvjr4hAQP/ LYULIiaM/D9lu6cJe3xoRVKNaAPD1IzYaFb6NNVUUMhnwrt3YvLOka2l4YAYPffPFsQF gzYBxzBN2/7dzL/Syk/KZUGkJN2ApIZ1xSVR/ZX26acqBnbEUqlbC21OJF1DcK9RSgkC 2yyCJhA6M9UbxrmwzQiSHYSWxbO3+1cTHDAvsJQNalBpgj3Iyrq1OkjJFEjnipVgwFkN e4/A== X-Gm-Message-State: ALoCoQmxuEUd/riLxhwPLLk+P4lRN25qkhSDmO4+nMTa/55ITJbei8K5KsMHCxXa12VJTP0v0AEi MIME-Version: 1.0 X-Received: by 10.112.205.194 with SMTP id li2mr2289257lbc.75.1447178299815; Tue, 10 Nov 2015 09:58:19 -0800 (PST) Received: by 10.112.53.42 with HTTP; Tue, 10 Nov 2015 09:58:19 -0800 (PST) In-Reply-To: <20151110170703.GB17530@fieldses.org> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> <20151110112943.GA17038@infradead.org> <20151110170703.GB17530@fieldses.org> Date: Tue, 10 Nov 2015 18:58:19 +0100 Message-ID: Subject: Re: [PATCH v15 00/22] Richacls (Core and Ext4) From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v15 00/22] Richacls (Core and Ext4) To: "J. Bruce Fields" Cc: Steve French , Christoph Hellwig , Alexander Viro , "Theodore Ts'o" , Andreas Dilger , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , "linux-cifs@vger.kernel.org" , Linux API Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lb0-f174.google.com[209.85.217.174] X-Barracuda-Start-Time: 1447178300 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC5_SA210e X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24277 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.00 BSF_SC5_SA210e Custom Rule SA210e On Tue, Nov 10, 2015 at 6:07 PM, J. Bruce Fields wrote: > On Tue, Nov 10, 2015 at 10:43:46AM -0600, Steve French wrote: >> On Tue, Nov 10, 2015 at 6:39 AM, Andreas Gruenbacher >> wrote: >> > On Tue, Nov 10, 2015 at 12:29 PM, Christoph Hellwig wrote: >> >> On Mon, Nov 09, 2015 at 12:08:41PM +0100, Andreas Gruenbacher wrote: >> >>> Here is another update to the richacl patch queue. This posting contains >> >>> the patches ready to be merged; the patches later in the queue still need >> >>> some more review. >> >> >> and still abuses xattrs instead of a proper syscall interface. >> >> That's far from being ready to merge. >> > >> > The xattr syscall interface is what's used for very similar kinds of >> > things today; using it for richacls as well sure does not count as >> > abuse. Things could be improved in the xattr interface and in its >> > implementation, but we need more substantial reasons than that for >> > reimplementing the wheel once again. >> >> I don't have strong disagreement with using pseudo-xattrs to >> store/retrieve ACLs (we already do this) but retrieving/setting an ACL >> all at once can be awkward when ACLs are quite large e.g. when it >> encodes to over 1MB > > At least in the NFS case, that's also a limitation of the protocol. I couldn't find a limit in the NFSv4 specification, but the client and server implementations both define arbitrary ACL size limits. In addition, the xattr syscalls allow attributes to be up to 64k long. > If > we really wanted to support massive ACLs then we'd need both syscall and > NFS interfaces to allow incrementally reading and writing ACLs, and I > don't even know what those would look like. > > So this is a fine limitation as far as I'm concerned. The bigger problem would be incrementally setting ACLs. To prevent processes from racing with each other, we would need a locking mechanism. In addition, the memory overhead would be prohibitive and access decisions would become extremely slow; we would have to come up with mechanisms to avoid those problems. Thanks, Andreas From prvs=8756a6f0b1=clm@fb.com Tue Nov 10 12:02:04 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DBCCC7F4E for ; Tue, 10 Nov 2015 12:02:03 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 77569AC006 for ; Tue, 10 Nov 2015 10:02:00 -0800 (PST) X-ASG-Debug-ID: 1447178518-04bdf03f04fd3a0001-NocioJ Received: from mx0b-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by cuda.sgi.com with ESMTP id gBqhFIighi6gVFoO (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 10 Nov 2015 10:01:58 -0800 (PST) X-Barracuda-Envelope-From: prvs=8756a6f0b1=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.153.30 X-ASG-Whitelist: EmailCat (corporate) Received: from pps.filterd (m0001255.ppops.net [127.0.0.1]) by mx0b-00082601.pphosted.com (8.15.0.59/8.15.0.59) with SMTP id tAAHuk45026623; Tue, 10 Nov 2015 10:01:56 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=date : from : to : subject : message-id : references : mime-version : content-type : in-reply-to; s=facebook; bh=Sbm9nkqSKGUa2+qxdsswbemhonXdzhT1aS/v4x2SY4A=; b=oYnsM1ZXyjyyl7EH6Zlw8ngRwoRNYxpbp9wPE/Wn9r7XoobSqDjw9yWth9crX/ESZbLc ywUmaiWRy1aaWbLnU4cpjlL27llHSmkU3KfBOap9XxOa5kXxeA1nPtf8BZQq+VXKSIxE FVRKldbjn6Ltm/ow3nIFVye0CdRtc2KsKdQ= Received: from mail.thefacebook.com ([199.201.64.23]) by mx0b-00082601.pphosted.com with ESMTP id 1y1e06jnpx-2 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Tue, 10 Nov 2015 10:01:56 -0800 Received: from localhost (192.168.52.123) by mail.thefacebook.com (192.168.16.24) with Microsoft SMTP Server (TLS) id 14.3.248.2; Tue, 10 Nov 2015 10:01:51 -0800 Date: Tue, 10 Nov 2015 13:01:50 -0500 From: Chris Mason To: Dave Chinner , , Tejun Heo Subject: [PATCH v2] xfs: use WQ_MEM_RECLAIM for m_log_workqueue Message-ID: <20151110180150.GD26661@ret.masoncoding.com> X-ASG-Orig-Subj: [PATCH v2] xfs: use WQ_MEM_RECLAIM for m_log_workqueue References: <20151104185103.GC5458@ret.masoncoding.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20151104185103.GC5458@ret.masoncoding.com> User-Agent: Mutt/1.5.23.1 (2014-03-12) X-Originating-IP: [192.168.52.123] X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2015-11-10_13:,, signatures=0 X-Barracuda-Connect: mx0b-00082601.pphosted.com[67.231.153.30] X-Barracuda-Start-Time: 1447178518 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 We're consistently hitting deadlocks here with XFS on recent kernels. After some digging through the crash files, it looks like everyone in the system is waiting for XFS to reclaim memory. Something like this: PID: 2733434 TASK: ffff8808cd242800 CPU: 19 COMMAND: "java" 0 [ffff88082d093368] __schedule at ffffffff818c4df2 1 [ffff88082d0933b8] schedule at ffffffff818c5517 2 [ffff88082d0933d8] schedule_timeout at ffffffff818c7c6c 3 [ffff88082d093478] wait_for_completion at ffffffff818c6125 4 [ffff88082d0934d8] flush_work at ffffffff8106867c 5 [ffff88082d093548] xlog_cil_force_lsn at ffffffff81317b00 6 [ffff88082d0935f8] _xfs_log_force_lsn at ffffffff81316249 7 [ffff88082d093688] xfs_log_force_lsn at ffffffff813164fb 8 [ffff88082d0936b8] xfs_iunpin_wait at ffffffff8130835e 9 [ffff88082d093728] xfs_reclaim_inode at ffffffff812fd453 10 [ffff88082d093778] xfs_reclaim_inodes_ag at ffffffff812fd8c7 11 [ffff88082d093928] xfs_reclaim_inodes_nr at ffffffff812fe433 12 [ffff88082d093958] xfs_fs_free_cached_objects at ffffffff8130d3b9 13 [ffff88082d093968] super_cache_scan at ffffffff811a6f73 14 [ffff88082d0939c8] shrink_slab at ffffffff811460e6 15 [ffff88082d093aa8] shrink_zone at ffffffff8114a53f 16 [ffff88082d093b48] do_try_to_free_pages at ffffffff8114a8ba 17 [ffff88082d093be8] try_to_free_pages at ffffffff8114ad5a 18 [ffff88082d093c78] __alloc_pages_nodemask at ffffffff8113e1b8 19 [ffff88082d093d88] alloc_kmem_pages_node at ffffffff8113e671 20 [ffff88082d093dd8] copy_process at ffffffff8104f781 21 [ffff88082d093ec8] do_fork at ffffffff8105129c 22 [ffff88082d093f38] sys_clone at ffffffff810515b6 23 [ffff88082d093f48] stub_clone at ffffffff818c8e4d xfs_log_force_lsn is waiting for logs to get cleaned, which is waiting for IO, which is waiting for workers to complete the IO which is waiting for worker threads that don't exist yet: PID: 2752451 TASK: ffff880bd6bdda00 CPU: 37 COMMAND: "kworker/37:1" 0 [ffff88000394fbb0] __schedule at ffffffff818c4df2 1 [ffff88000394fc00] schedule at ffffffff818c5517 2 [ffff88000394fc20] schedule_timeout at ffffffff818c7c6c 3 [ffff88000394fcc0] wait_for_completion_killable at ffffffff818c6495 4 [ffff88000394fd30] kthread_create_on_node at ffffffff8106ec82 5 [ffff88000394fdf0] create_worker at ffffffff8106752f 6 [ffff88000394fe40] worker_thread at ffffffff810699be 7 [ffff88000394fec0] kthread at ffffffff8106ef59 8 [ffff88000394ff50] ret_from_fork at ffffffff818c8ac8 I think we should be using WQ_MEM_RECLAIM to make sure this thread pool makes progress when we're not able to allocate new workers. While we are here, just assume that everything in the FS will eventually wait on one of these workqueues, and flag them all for reclaim. Signed-off-by: Chris Mason --- v1 -> v2 add WQ_MEM_RECLAIM to xfs-reclaim and xfs-eofblocks too, fix commit text so git commit doesn't eat the stack traces fs/xfs/xfs_super.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 904f637..d74d7e1 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -838,17 +838,18 @@ xfs_init_mount_workqueues( goto out_destroy_unwritten; mp->m_reclaim_workqueue = alloc_workqueue("xfs-reclaim/%s", - WQ_FREEZABLE, 0, mp->m_fsname); + WQ_MEM_RECLAIM|WQ_FREEZABLE, 0, mp->m_fsname); if (!mp->m_reclaim_workqueue) goto out_destroy_cil; mp->m_log_workqueue = alloc_workqueue("xfs-log/%s", - WQ_FREEZABLE|WQ_HIGHPRI, 0, mp->m_fsname); + WQ_MEM_RECLAIM|WQ_FREEZABLE|WQ_HIGHPRI, + 0, mp->m_fsname); if (!mp->m_log_workqueue) goto out_destroy_reclaim; mp->m_eofblocks_workqueue = alloc_workqueue("xfs-eofblocks/%s", - WQ_FREEZABLE, 0, mp->m_fsname); + WQ_MEM_RECLAIM|WQ_FREEZABLE, 0, mp->m_fsname); if (!mp->m_eofblocks_workqueue) goto out_destroy_log; -- 2.4.6 From sandeen@redhat.com Tue Nov 10 12:21:13 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8FC237F4E for ; Tue, 10 Nov 2015 12:21:13 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 63EEC8F8035 for ; Tue, 10 Nov 2015 10:21:13 -0800 (PST) X-ASG-Debug-ID: 1447179672-04cbb02423107d10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id CfpM2E90YbOJMSFT (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 10 Nov 2015 10:21:12 -0800 (PST) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 085D41361 for ; Tue, 10 Nov 2015 18:21:12 +0000 (UTC) Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAAILADM021973 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 10 Nov 2015 13:21:11 -0500 To: xfs@oss.sgi.com Cc: jtulak@redhat.com From: Eric Sandeen Subject: [PATCH] xfsprogs: fix cut & paste error in xfs_fsr.c X-Enigmail-Draft-Status: N1110 X-ASG-Orig-Subj: [PATCH] xfsprogs: fix cut & paste error in xfs_fsr.c Message-ID: <56423596.3030300@redhat.com> Date: Tue, 10 Nov 2015 12:21:10 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447179672 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Commit: 7141fc xfsprogs: make fsr use mntinfo when there is no mntent added an inadvertent "break;" to initallfs() after the call to find_mountpoint_check(); this is likely a cut & paste error from the call in find_mountpoint(), where we really *do* want to stop after the first one we find. Fix that by removing the break, and fix the declaration-after-code. Addresses-Coverity-Id: 1338431 Signed-off-by: Eric Sandeen --- I'll probably follow this with some other cleanups, but this is the functional fix AFAICT. diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c index b902acc..9332c57 100644 --- a/fsr/xfs_fsr.c +++ b/fsr/xfs_fsr.c @@ -433,12 +433,11 @@ initallfs(char *mtab) } while ( (mp = platform_mntent_next(&cursor)) != NULL) { + int rw = 0; + mntp = find_mountpoint_check(&sb, mp, &ms); if (mntp == NULL) continue; - break; - - int rw = 0; if (strcmp(mp->mnt_type, MNTTYPE_XFS ) != 0 || stat64(mp->mnt_fsname, &sb) == -1 || From sandeen@sandeen.net Tue Nov 10 12:45:35 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 086597F3F for ; Tue, 10 Nov 2015 12:45:35 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id CD1878F8035 for ; Tue, 10 Nov 2015 10:45:34 -0800 (PST) X-ASG-Debug-ID: 1447181128-04bdf03f05fe4f0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id jmVeBe4b2KHlwmUe for ; Tue, 10 Nov 2015 10:45:28 -0800 (PST) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id DDEFB6372A81 for ; Tue, 10 Nov 2015 12:45:27 -0600 (CST) Subject: Re: [PATCH] xfsprogs: fix cut & paste error in xfs_fsr.c To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfsprogs: fix cut & paste error in xfs_fsr.c References: <56423596.3030300@redhat.com> From: Eric Sandeen X-Enigmail-Draft-Status: N1110 Message-ID: <56423B47.4060306@sandeen.net> Date: Tue, 10 Nov 2015 12:45:27 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <56423596.3030300@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1447181128 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24277 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 11/10/15 12:21 PM, Eric Sandeen wrote: > Commit: > > 7141fc xfsprogs: make fsr use mntinfo when there is no mntent > > added an inadvertent "break;" to initallfs() after the call > to find_mountpoint_check(); this is likely a cut & paste error > from the call in find_mountpoint(), where we really *do* want to > stop after the first one we find. > > Fix that by removing the break, and fix the declaration-after-code. > > Addresses-Coverity-Id: 1338431 > Signed-off-by: Eric Sandeen > --- Actually, unless Jan's commit fixes something important for this release (and I don't think it does?) I'd just revert it; it's pretty chock full of outright errors and other weirdness. For example: initallfs(mtab); struct stat64 sb; mntp = find_mountpoint_check(&sb, mp, &ms); and find_mounpoint_check() does: if (S_ISDIR(sb->st_mode)) { so "sb" is never initialized on that path. Weird that Coverity didn't see it. (I'm also not a fan of using "sb" and "mp" for things that aren't superblocks and xfs_mount_t's, but that's just style I guess...) ((and every caller passes an ms stat buffer into the function, which can be local to the function, as no caller uses it ...)) (((and there's whitespace damage))) Jan said this patch "fell under the sofa" - I think it might need a bit more dusting off before it's ready to go... ;) -Eric From bfields@fieldses.org Tue Nov 10 13:17:52 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id AC4D47F3F for ; Tue, 10 Nov 2015 13:17:52 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9D8F0304032 for ; Tue, 10 Nov 2015 11:17:49 -0800 (PST) X-ASG-Debug-ID: 1447183065-04cbb02424109280001-NocioJ Received: from fieldses.org (fieldses.org [173.255.197.46]) by cuda.sgi.com with ESMTP id SlYCD3la5JJL1XH6 for ; Tue, 10 Nov 2015 11:17:46 -0800 (PST) X-Barracuda-Envelope-From: bfields@fieldses.org X-Barracuda-Apparent-Source-IP: 173.255.197.46 Received: by fieldses.org (Postfix, from userid 2815) id 68A1EC4F; Tue, 10 Nov 2015 14:17:45 -0500 (EST) Date: Tue, 10 Nov 2015 14:17:45 -0500 From: "J. Bruce Fields" To: Andreas Gruenbacher Cc: Steve French , Christoph Hellwig , Alexander Viro , Theodore Ts'o , Andreas Dilger , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , "linux-cifs@vger.kernel.org" , Linux API Subject: Re: [PATCH v15 00/22] Richacls (Core and Ext4) Message-ID: <20151110191745.GA19379@fieldses.org> X-ASG-Orig-Subj: Re: [PATCH v15 00/22] Richacls (Core and Ext4) References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> <20151110112943.GA17038@infradead.org> <20151110170703.GB17530@fieldses.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: fieldses.org[173.255.197.46] X-Barracuda-Start-Time: 1447183066 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24278 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Nov 10, 2015 at 06:58:19PM +0100, Andreas Gruenbacher wrote: > On Tue, Nov 10, 2015 at 6:07 PM, J. Bruce Fields wrote: > > On Tue, Nov 10, 2015 at 10:43:46AM -0600, Steve French wrote: > >> I don't have strong disagreement with using pseudo-xattrs to > >> store/retrieve ACLs (we already do this) but retrieving/setting an ACL > >> all at once can be awkward when ACLs are quite large e.g. when it > >> encodes to over 1MB > > > > At least in the NFS case, that's also a limitation of the protocol. > > I couldn't find a limit in the NFSv4 specification, but the client and > server implementations both define arbitrary ACL size limits. In > addition, the xattr syscalls allow attributes to be up to 64k long. I don't recall 4.0 specifying any limit, 4.1 does include negotiation of maximum rpc calls and replies, and that effectively limits ACL sizes since they have to fit in a single rpc. > The bigger problem would be incrementally setting ACLs. To prevent > processes from racing with each other, we would need a locking > mechanism. In addition, the memory overhead would be prohibitive and > access decisions would become extremely slow; we would have to come up > with mechanisms to avoid those problems. Right. Anyway, not worth the trouble, I think. (Though what might be worth thinking about at some point is just making sure we fail in helpful ways.) --b. From david@fromorbit.com Tue Nov 10 14:28:14 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id AE6A57F47 for ; Tue, 10 Nov 2015 14:28:14 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3408BAC004 for ; Tue, 10 Nov 2015 12:28:11 -0800 (PST) X-ASG-Debug-ID: 1447187287-04cb6c296b106a80001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id b9Xn7N5h8Qz9BXJt for ; Tue, 10 Nov 2015 12:28:08 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2ATCQBGUkJWPGfGLHleKAECgxCBQoJfg36kaQEBAQEBAQaLMoUshA2GCgICAQECgUpNAQEBAQEBBwEBAQFAAT+ENAEBAQQnExwjEAgDFQMJJQ8FJQMHGhOILcNwAQEBBwIBIBmFdIVFiTkFh0SPBI0ejzSNGYJ0HYFqKjSFLgEBAQ Received: from ppp121-44-198-103.lns20.syd7.internode.on.net (HELO dastard) ([121.44.198.103]) by ipmail06.adl6.internode.on.net with ESMTP; 11 Nov 2015 06:58:07 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZwFWQ-0000P3-Hl; Wed, 11 Nov 2015 07:28:06 +1100 Date: Wed, 11 Nov 2015 07:28:06 +1100 From: Dave Chinner To: Eric Sandeen Cc: xfs@oss.sgi.com, jtulak@redhat.com Subject: Re: [PATCH] xfsprogs: fix cut & paste error in xfs_fsr.c Message-ID: <20151110202806.GG14311@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfsprogs: fix cut & paste error in xfs_fsr.c References: <56423596.3030300@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56423596.3030300@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1447187287 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24280 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Nov 10, 2015 at 12:21:10PM -0600, Eric Sandeen wrote: > Commit: > > 7141fc xfsprogs: make fsr use mntinfo when there is no mntent > > added an inadvertent "break;" to initallfs() after the call > to find_mountpoint_check(); this is likely a cut & paste error > from the call in find_mountpoint(), where we really *do* want to > stop after the first one we find. > > Fix that by removing the break, and fix the declaration-after-code. That's not the right fix - the find_mountpoint_check() shoul dnot be there at all. Patch to clean it all up is below. -Dave. -- Dave Chinner david@fromorbit.com fsr: clean up mountpoint checks From: Dave Chinner Fix up a stray hunk of code from commit 7141fc5 ("xfsprogs: make fsr use mntinfo when there is no mntent") that coverity reported. Also clean up a couple of whitespace issues introduced with that commit, too. Addresses-Coverity-Id: 1338431 Signed-off-by: Dave Chinner --- fsr/xfs_fsr.c | 18 +++++------------- 1 file changed, 5 insertions(+), 13 deletions(-) diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c index b902acc..2887ceb 100644 --- a/fsr/xfs_fsr.c +++ b/fsr/xfs_fsr.c @@ -176,7 +176,6 @@ aborter(int unused) * here - the code that handles defragmentation of invidual files takes care * of that. */ - static char * find_mountpoint_check(struct stat64 *sb, struct mntent *t, struct stat64 *ms) { @@ -200,9 +199,9 @@ find_mountpoint_check(struct stat64 *sb, struct mntent *t, struct stat64 *ms) return NULL; /* - * Make sure the mountpoint given by mtab is accessible - * before using it. - */ + * Make sure the mountpoint given by mtab is accessible + * before using it. + */ if (stat64(t->mnt_dir, &sb2) < 0) return NULL; } @@ -224,7 +223,7 @@ find_mountpoint(char *mtab, char *argname, struct stat64 *sb) exit(1); } - while ( (t = platform_mntent_next(&cursor)) != NULL) { + while ((t = platform_mntent_next(&cursor)) != NULL) { mntp = find_mountpoint_check(sb, t, &ms); if (mntp == NULL) continue; @@ -409,12 +408,10 @@ static void initallfs(char *mtab) { struct mntent_cursor cursor; - char *mntp = NULL; struct mntent *mp = NULL; int mi; char *cp; struct stat64 sb; - struct stat64 ms; /* malloc a number of descriptors, increased later if needed */ if (!(fsbase = (fsdesc_t *)malloc(fsbufsize * sizeof(fsdesc_t)))) { @@ -432,12 +429,7 @@ initallfs(char *mtab) exit(1); } - while ( (mp = platform_mntent_next(&cursor)) != NULL) { - mntp = find_mountpoint_check(&sb, mp, &ms); - if (mntp == NULL) - continue; - break; - + while ((mp = platform_mntent_next(&cursor)) != NULL) { int rw = 0; if (strcmp(mp->mnt_type, MNTTYPE_XFS ) != 0 || From sandeen@redhat.com Tue Nov 10 14:35:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D7B987F50 for ; Tue, 10 Nov 2015 14:35:32 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6A545AC008 for ; Tue, 10 Nov 2015 12:35:32 -0800 (PST) X-ASG-Debug-ID: 1447187727-04cbb0242510be10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id OBOzLaGEaXT1yf6d (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 10 Nov 2015 12:35:28 -0800 (PST) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 93742C0B8407; Tue, 10 Nov 2015 20:35:27 +0000 (UTC) Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAAKZOn6022638 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 10 Nov 2015 15:35:26 -0500 Subject: Re: [PATCH] xfsprogs: fix cut & paste error in xfs_fsr.c To: Dave Chinner X-ASG-Orig-Subj: Re: [PATCH] xfsprogs: fix cut & paste error in xfs_fsr.c References: <56423596.3030300@redhat.com> <20151110202806.GG14311@dastard> Cc: xfs@oss.sgi.com, jtulak@redhat.com From: Eric Sandeen X-Enigmail-Draft-Status: N1110 Message-ID: <5642550C.4040603@redhat.com> Date: Tue, 10 Nov 2015 14:35:24 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151110202806.GG14311@dastard> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447187728 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 > On Tue, Nov 10, 2015 at 12:21:10PM -0600, Eric Sandeen wrote: >> Commit: >> >> 7141fc xfsprogs: make fsr use mntinfo when there is no mntent >> >> added an inadvertent "break;" to initallfs() after the call >> to find_mountpoint_check(); this is likely a cut & paste error >> from the call in find_mountpoint(), where we really *do* want to >> stop after the first one we find. >> >> Fix that by removing the break, and fix the declaration-after-code. > > That's not the right fix - the find_mountpoint_check() shoul dnot be > there at all. Patch to clean it all up is below. > > -Dave. > -- > Dave Chinner > david@fromorbit.com > > fsr: clean up mountpoint checks > > From: Dave Chinner > > Fix up a stray hunk of code from commit 7141fc5 ("xfsprogs: make fsr > use mntinfo when there is no mntent") that coverity reported. Also > clean up a couple of whitespace issues introduced with that commit, > too. Um, ok, well it wasn't your misapplication, it was there in the original patch, and I wasn't sure of Jan's intent, having gone so far as to add local vars to support that placement. ;) This seems fine, I guess I'll send another patch to make *ms local to find_mountpoint_check(), and rename some vars ("sb" and "mp" have their own expected meanings in xfsprogs) Reviewed-by: Eric Sandeen -Eric > Addresses-Coverity-Id: 1338431 > Signed-off-by: Dave Chinner > --- > fsr/xfs_fsr.c | 18 +++++------------- > 1 file changed, 5 insertions(+), 13 deletions(-) > > diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c > index b902acc..2887ceb 100644 > --- a/fsr/xfs_fsr.c > +++ b/fsr/xfs_fsr.c > @@ -176,7 +176,6 @@ aborter(int unused) > * here - the code that handles defragmentation of invidual files takes care > * of that. > */ > - > static char * > find_mountpoint_check(struct stat64 *sb, struct mntent *t, struct stat64 *ms) > { > @@ -200,9 +199,9 @@ find_mountpoint_check(struct stat64 *sb, struct mntent *t, struct stat64 *ms) > return NULL; > > /* > - * Make sure the mountpoint given by mtab is accessible > - * before using it. > - */ > + * Make sure the mountpoint given by mtab is accessible > + * before using it. > + */ > if (stat64(t->mnt_dir, &sb2) < 0) > return NULL; > } > @@ -224,7 +223,7 @@ find_mountpoint(char *mtab, char *argname, struct stat64 *sb) > exit(1); > } > > - while ( (t = platform_mntent_next(&cursor)) != NULL) { > + while ((t = platform_mntent_next(&cursor)) != NULL) { > mntp = find_mountpoint_check(sb, t, &ms); > if (mntp == NULL) > continue; > @@ -409,12 +408,10 @@ static void > initallfs(char *mtab) > { > struct mntent_cursor cursor; > - char *mntp = NULL; > struct mntent *mp = NULL; > int mi; > char *cp; > struct stat64 sb; > - struct stat64 ms; > > /* malloc a number of descriptors, increased later if needed */ > if (!(fsbase = (fsdesc_t *)malloc(fsbufsize * sizeof(fsdesc_t)))) { > @@ -432,12 +429,7 @@ initallfs(char *mtab) > exit(1); > } > > - while ( (mp = platform_mntent_next(&cursor)) != NULL) { > - mntp = find_mountpoint_check(&sb, mp, &ms); > - if (mntp == NULL) > - continue; > - break; > - > + while ((mp = platform_mntent_next(&cursor)) != NULL) { > int rw = 0; > > if (strcmp(mp->mnt_type, MNTTYPE_XFS ) != 0 || > From sandeen@sandeen.net Tue Nov 10 14:45:53 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A94D77F47 for ; Tue, 10 Nov 2015 14:45:53 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9C8CA304032 for ; Tue, 10 Nov 2015 12:45:50 -0800 (PST) X-ASG-Debug-ID: 1447188347-04cb6c296d107170001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id WTAwerSubci5rbpy for ; Tue, 10 Nov 2015 12:45:47 -0800 (PST) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 4327265BD16C for ; Tue, 10 Nov 2015 14:45:47 -0600 (CST) Subject: [PATCH] xfsprogs: tidy up xfs_fsr.c To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH] xfsprogs: tidy up xfs_fsr.c References: <56423596.3030300@redhat.com> <20151110202806.GG14311@dastard> From: Eric Sandeen Message-ID: <5642577A.8000206@sandeen.net> Date: Tue, 10 Nov 2015 14:45:46 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151110202806.GG14311@dastard> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1447188347 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24280 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Make the mountpoint stat structure "ms" local to find_mountpoint_check(), no caller uses it. And remove 3rd "sb2" statbuf in that same function, we can just re-use ms. rename "struct mntent *mp" to "struct mntent *mnt" - "mp" has its own common meaning in xfsprogs. And a couple more minor whitespace removals. Signed-off-by: Eric Sandeen --- diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c index 2887ceb..d5962f7 100644 --- a/fsr/xfs_fsr.c +++ b/fsr/xfs_fsr.c @@ -177,44 +177,41 @@ aborter(int unused) * of that. */ static char * -find_mountpoint_check(struct stat64 *sb, struct mntent *t, struct stat64 *ms) +find_mountpoint_check(struct stat64 *sb, struct mntent *t) { + struct stat64 ms; + if (S_ISDIR(sb->st_mode)) { /* mount point */ - if (stat64(t->mnt_dir, ms) < 0) + if (stat64(t->mnt_dir, &ms) < 0) return NULL; - if (sb->st_ino != ms->st_ino) + if (sb->st_ino != ms.st_ino) return NULL; - if (sb->st_dev != ms->st_dev) + if (sb->st_dev != ms.st_dev) return NULL; if (strcmp(t->mnt_type, MNTTYPE_XFS) != 0) return NULL; } else { /* device */ - struct stat64 sb2; - - if (stat64(t->mnt_fsname, ms) < 0) + if (stat64(t->mnt_fsname, &ms) < 0) return NULL; - if (sb->st_rdev != ms->st_rdev) + if (sb->st_rdev != ms.st_rdev) return NULL; if (strcmp(t->mnt_type, MNTTYPE_XFS) != 0) return NULL; - /* * Make sure the mountpoint given by mtab is accessible * before using it. */ - if (stat64(t->mnt_dir, &sb2) < 0) + if (stat64(t->mnt_dir, &ms) < 0) return NULL; } return t->mnt_dir; - } static char * find_mountpoint(char *mtab, char *argname, struct stat64 *sb) { struct mntent_cursor cursor; - struct stat64 ms; struct mntent *t = NULL; char *mntp = NULL; @@ -224,7 +221,7 @@ find_mountpoint(char *mtab, char *argname, struct stat64 *sb) } while ((t = platform_mntent_next(&cursor)) != NULL) { - mntp = find_mountpoint_check(sb, t, &ms); + mntp = find_mountpoint_check(sb, t); if (mntp == NULL) continue; break; @@ -408,7 +405,7 @@ static void initallfs(char *mtab) { struct mntent_cursor cursor; - struct mntent *mp = NULL; + struct mntent *mnt= NULL; int mi; char *cp; struct stat64 sb; @@ -429,15 +426,15 @@ initallfs(char *mtab) exit(1); } - while ((mp = platform_mntent_next(&cursor)) != NULL) { + while ((mnt = platform_mntent_next(&cursor)) != NULL) { int rw = 0; - if (strcmp(mp->mnt_type, MNTTYPE_XFS ) != 0 || - stat64(mp->mnt_fsname, &sb) == -1 || + if (strcmp(mnt->mnt_type, MNTTYPE_XFS ) != 0 || + stat64(mnt->mnt_fsname, &sb) == -1 || !S_ISBLK(sb.st_mode)) continue; - cp = strtok(mp->mnt_opts,","); + cp = strtok(mnt->mnt_opts,","); do { if (strcmp("rw", cp) == 0) rw++; @@ -445,7 +442,7 @@ initallfs(char *mtab) if (rw == 0) { if (dflag) fsrprintf(_("Skipping %s: not mounted rw\n"), - mp->mnt_fsname); + mnt->mnt_fsname); continue; } @@ -465,15 +462,15 @@ initallfs(char *mtab) fs = (fsbase + mi); /* Needed ? */ } - fs->dev = strdup(mp->mnt_fsname); - fs->mnt = strdup(mp->mnt_dir); + fs->dev = strdup(mnt->mnt_fsname); + fs->mnt = strdup(mnt->mnt_dir); if (fs->dev == NULL) { - fsrprintf(_("strdup(%s) failed\n"), mp->mnt_fsname); + fsrprintf(_("strdup(%s) failed\n"), mnt->mnt_fsname); exit(1); } if (fs->mnt == NULL) { - fsrprintf(_("strdup(%s) failed\n"), mp->mnt_dir); + fsrprintf(_("strdup(%s) failed\n"), mnt->mnt_dir); exit(1); } mi++; From debbugs@buxtehude.debian.org Tue Nov 10 15:54:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id F0AE27F56 for ; Tue, 10 Nov 2015 15:54:08 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8A39FAC008 for ; Tue, 10 Nov 2015 13:54:08 -0800 (PST) X-ASG-Debug-ID: 1447192446-04bdf03f021024d0001-NocioJ Received: from buxtehude.debian.org (buxtehude.debian.org [140.211.166.26]) by cuda.sgi.com with ESMTP id vi2wAXewztQOmmL8 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 13:54:07 -0800 (PST) X-Barracuda-Envelope-From: debbugs@buxtehude.debian.org X-Barracuda-Apparent-Source-IP: 140.211.166.26 Received: from debbugs by buxtehude.debian.org with local (Exim 4.84) (envelope-from ) id 1ZwGrc-0001tC-CG; Tue, 10 Nov 2015 21:54:04 +0000 X-Loop: owner@bugs.debian.org Subject: Bug#804255: Please update initramfs in postinst Reply-To: Nathan Scott , 804255@bugs.debian.org X-ASG-Orig-Subj: Bug#804255: Please update initramfs in postinst Resent-From: Nathan Scott Resent-To: debian-bugs-dist@lists.debian.org Resent-CC: XFS Development Team X-Loop: owner@bugs.debian.org Resent-Date: Tue, 10 Nov 2015 21:54:02 +0000 Resent-Message-ID: X-Debian-PR-Message: followup 804255 X-Debian-PR-Package: xfsprogs X-Debian-PR-Keywords: d-i patch X-Debian-PR-Source: xfsprogs Received: via spool by 804255-submit@bugs.debian.org id=B804255.14471922356455 (code B ref 804255); Tue, 10 Nov 2015 21:54:02 +0000 Received: (at 804255) by bugs.debian.org; 10 Nov 2015 21:50:35 +0000 Received: from mx6-phx2.redhat.com ([209.132.183.39]) by buxtehude.debian.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84) (envelope-from ) id 1ZwGoF-0001fs-BF for 804255@bugs.debian.org; Tue, 10 Nov 2015 21:50:35 +0000 Received: from zmail20.collab.prod.int.phx2.redhat.com (zmail20.collab.prod.int.phx2.redhat.com [10.5.83.23]) by mx6-phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAALoW3P019730; Tue, 10 Nov 2015 16:50:33 -0500 Date: Tue, 10 Nov 2015 16:50:31 -0500 (EST) From: Nathan Scott To: Steve McIntyre , 804255@bugs.debian.org Message-ID: <557726867.9104603.1447192231975.JavaMail.zimbra@redhat.com> In-Reply-To: <20151110164115.GG13015@einval.com> References: <20151106161941.15248.86048.reportbug@tack.local> <1822095565.6959319.1447027220334.JavaMail.zimbra@redhat.com> <20151110164115.GG13015@einval.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.64.51.139] X-Mailer: Zimbra 8.0.6_GA_5922 (ZimbraWebClient - FF37 (Linux)/8.0.6_GA_5922) Thread-Topic: Bug#804255: Please update initramfs in postinst Thread-Index: tlNqo2V1BFTwQffbVpWhgSsmcEqnQQ== X-Barracuda-Connect: buxtehude.debian.org[140.211.166.26] X-Barracuda-Start-Time: 1447192447 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.02 X-Barracuda-Spam-Status: No, SCORE=0.02 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=THREAD_INDEX, THREAD_TOPIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24283 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... ----- Original Message ----- > >[...] > >That would be great, if you don't mind Steve? Many thanks! > > Here's a debdiff of what I've just built. Ignore the NMU version in > the changelog... Thanks Steve - I believe there's an upstream xfsprogs release pending, so we'll get this uploaded shortly. cheers. -- Nathan From arekm@maven.pl Tue Nov 10 16:13:49 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 476627F4E for ; Tue, 10 Nov 2015 16:13:49 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 297DC30405F for ; Tue, 10 Nov 2015 14:13:45 -0800 (PST) X-ASG-Debug-ID: 1447193618-04cbb0242410dc70001-NocioJ Received: from mail-lf0-f54.google.com (mail-lf0-f54.google.com [209.85.215.54]) by cuda.sgi.com with ESMTP id jTddF4HGH2HYFKoK (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 14:13:39 -0800 (PST) X-Barracuda-Envelope-From: arekm@maven.pl X-Barracuda-Apparent-Source-IP: 209.85.215.54 Received: by lffu14 with SMTP id u14so6588168lff.1 for ; Tue, 10 Nov 2015 14:13:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maven.pl; s=maven; h=from:to:subject:date:user-agent:mime-version:content-type :content-transfer-encoding:message-id; bh=8/IcmuJpOC3lJRaN8uk/KsEYF0q+YNE6sSeffXOxzQA=; b=YBP3/VWSsEICuzSBqQfQtNMT8C25pDITMzQaf2nMZS7cEhCMY7zQFRsIwfVmDAgBgv /d1+VBu+ZzZQOXCDW9JS34bXwuwLhO54D2q4lxuXRwlZi39/tOhXwuUAdXPJxFvq5ECf Dit1A6lzzxqt+RD/1Ws3JPCalKUHJm0wbrM+Q= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:user-agent:mime-version :content-type:content-transfer-encoding:message-id; bh=8/IcmuJpOC3lJRaN8uk/KsEYF0q+YNE6sSeffXOxzQA=; b=Fw4vHThtRiExIXZoEyTAozfdzwAgeeW6ooe9IZPXD6uCWBW36AE4L3zQiljGsFr00A SzeGiX/ZtKYt/FxKy9wyTsooGnRr38zxRLLNPB1PODQ0U8TuRH796eVcAvK1PPUhWuU4 e0JtscFay6FS6bv2ueP/cUnLNcFWaM5Id9YsPsiVIZr1oS/huuWcmytkArclOe2vc8eR XsYEU2tIhbmB7wsD+BfoU2irF+rD0Wuj5mpCOGceP3GskNG9HpOEtEZANN3FXQzcCDDm cC9X+LD2j6oXkAzJ0xAx+ZcWLkUYApMtswaLogqeTlFjHv9baBFSWXcnvlNeoc9M/4Wn pQtw== X-Gm-Message-State: ALoCoQlbz5+TW4jv0M9dwazLL9eEBrAbS/atVoxgzfHKAyvb2+tOMs5wK6JXuKHllBsNjh6uujFU X-Received: by 10.25.20.160 with SMTP id 32mr2922056lfu.28.1447193618126; Tue, 10 Nov 2015 14:13:38 -0800 (PST) Received: from xps.localnet (85-222-71-204.dynamic.chello.pl. [85.222.71.204]) by smtp.gmail.com with ESMTPSA id a2sm884811lbc.20.2015.11.10.14.13.37 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 10 Nov 2015 14:13:37 -0800 (PST) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= To: linux-mm@kvack.org, xfs@oss.sgi.com Subject: memory reclaim problems on fs usage Date: Tue, 10 Nov 2015 23:13:36 +0100 X-ASG-Orig-Subj: memory reclaim problems on fs usage User-Agent: KMail/1.13.7 (Linux/4.3.0-09269-gce5c2d2; KDE/4.14.13; x86_64; ; ) MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201511102313.36685.arekm@maven.pl> X-Barracuda-Connect: mail-lf0-f54.google.com[209.85.215.54] X-Barracuda-Start-Time: 1447193619 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24283 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Hi. I have a x86_64 system running 4.1.12 kernel on top of software raid array = (raid 1 and 6) on top of adaptec HBA card (ASR71605E) that provides connectivity to 16 sata rotational disks. fs is XFS. System has 8GB of ram and 111GB of swap on ssd disk (swap is barely used: ~7,4MB in use). Usage scenario on this machine is 5-10 (sometimes more) rsnapshot/rsync pro= cesses doing hardlinks and copying tons of files. The usual (repeatable) problem is like this: full dmesg: http://sprunge.us/VEiE (more in it then in partial log below) partial log: 122365.832373] swapper/3: page allocation failure: order:0, mode:0x20 [122365.832382] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.1.12-3 #1 [122365.832384] Hardware name: Supermicro X8SIL/X8SIL, BIOS 1.2a 06/2= 7/2012 [122365.832386] 0000000000000000 ab5d50b5f2ae9872 ffff88023fcc3b18 fffffff= f8164b37a [122365.832390] 0000000000000000 0000000000000020 ffff88023fcc3ba8 fffffff= f8118f02e [122365.832392] 0000000000000000 0000000000000001 ffff880200000030 ffff880= 0ba984400 [122365.832395] Call Trace: [122365.832398] [] dump_stack+0x45/0x57 [122365.832409] [] warn_alloc_failed+0xfe/0x150 [122365.832415] [] ? raid5_align_endio+0x148/0x160 [raid= 456] [122365.832418] [] __alloc_pages_nodemask+0x322/0xa90 [122365.832423] [] __alloc_page_frag+0x12c/0x150 [122365.832426] [] __alloc_rx_skb+0x66/0x100 [122365.832430] [] ? __blk_mq_complete_request+0x7c/0x110 [122365.832433] [] __napi_alloc_skb+0x22/0x50 [122365.832440] [] e1000_clean_rx_irq+0x33e/0x3f0 [e1000= e] [122365.832444] [] ? timer_cpu_notify+0x160/0x160 [122365.832449] [] e1000e_poll+0xbc/0x2f0 [e1000e] [122365.832457] [] ? aac_src_intr_message+0xaf/0x3e0 [aa= craid] [122365.832461] [] net_rx_action+0x212/0x340 [122365.832465] [] __do_softirq+0x103/0x280 [122365.832467] [] irq_exit+0xad/0xb0 [122365.832471] [] do_IRQ+0x58/0xf0 [122365.832474] [] common_interrupt+0x6e/0x6e [122365.832476] [] ? mwait_idle+0x8c/0x150 [122365.832482] [] arch_cpu_idle+0xf/0x20 [122365.832485] [] cpu_startup_entry+0x380/0x400 [122365.832488] [] start_secondary+0x17d/0x1a0 [122365.832491] Mem-Info: [122365.832496] active_anon:28246 inactive_anon:31593 isolated_anon:0 active_file:6641 inactive_file:1616279 isolated_file:0 unevictable:0 dirty:136960 writeback:0 unstable:0 slab_reclaimable:191482 slab_unreclaimable:34061 mapped:3744 shmem:0 pagetables:1015 bounce:0 free:5700 free_pcp:551 free_cma:0 [122365.832500] Node 0 DMA free:15884kB min:20kB low:24kB high:28kB active_= anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0k= B isolated(anon):0kB isolated(file):0kB present:15968kB managed:15884kB=20 mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0= kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB boun= ce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB=20 pages_scanned:0 all_unreclaimable? yes [122365.832505] lowmem_reserve[]: 0 2968 7958 7958 [122365.832508] Node 0 DMA32 free:6916kB min:4224kB low:5280kB high:6336kB = active_anon:34904kB inactive_anon:44024kB active_file:9076kB inactive_file:= 2313600kB unevictable:0kB isolated(anon):0kB isolated(file):0kB=20 present:3120704kB managed:3043796kB mlocked:0kB dirty:199004kB writeback:0k= B mapped:5488kB shmem:0kB slab_reclaimable:441924kB slab_unreclaimable:3844= 0kB kernel_stack:960kB pagetables:1084kB unstable:0kB=20 bounce:0kB free_pcp:1132kB local_pcp:184kB free_cma:0kB writeback_tmp:0kB p= ages_scanned:0 all_unreclaimable? no [122365.832514] lowmem_reserve[]: 0 0 4990 4990 [122365.832517] Node 0 Normal free:0kB min:7104kB low:8880kB high:10656kB a= ctive_anon:78080kB inactive_anon:82348kB active_file:17488kB inactive_file:= 4151516kB unevictable:0kB isolated(anon):0kB isolated(file):0kB=20 present:5242880kB managed:5109980kB mlocked:0kB dirty:348836kB writeback:0k= B mapped:9488kB shmem:0kB slab_reclaimable:324004kB slab_unreclaimable:9780= 4kB kernel_stack:1760kB pagetables:2976kB unstable:0kB=20 bounce:0kB free_pcp:1072kB local_pcp:120kB free_cma:0kB writeback_tmp:0kB p= ages_scanned:0 all_unreclaimable? no [122365.832522] lowmem_reserve[]: 0 0 0 0 [122365.832525] Node 0 DMA: 1*4kB (U) 1*8kB (U) 0*16kB 0*32kB 2*64kB (U) 1*= 128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (R) 3*4096kB (M) =3D 15= 884kB [122365.832536] Node 0 DMA32: 1487*4kB (UE) 0*8kB 7*16kB (R) 9*32kB (R) 5*6= 4kB (R) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =3D 6668kB [122365.832544] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*2= 56kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =3D 0kB [122365.832552] Node 0 hugepages_total=3D0 hugepages_free=3D0 hugepages_sur= p=3D0 hugepages_size=3D2048kB [122365.832554] 1623035 total pagecache pages [122365.832556] 96 pages in swap cache [122365.832558] Swap cache stats: add 1941, delete 1845, find 1489/1529 [122365.832559] Free swap =3D 117213444kB [122365.832561] Total swap =3D 117220820kB [122365.832562] 2094888 pages RAM [122365.832564] 0 pages HighMem/MovableOnly [122365.832565] 48377 pages reserved [122365.832567] 4096 pages cma reserved [122365.832568] 0 pages hwpoisoned [122377.888271] XFS: possible memory allocation deadlock in xfs_buf_allocat= e_memory (mode:0x250) [122379.889804] XFS: possible memory allocation deadlock in xfs_buf_allocat= e_memory (mode:0x250) [122381.891337] XFS: possible memory allocation deadlock in xfs_buf_allocat= e_memory (mode:0x250) [122383.892871] XFS: possible memory allocation deadlock in xfs_buf_allocat= e_memory (mode:0x250) Tried to ask on #xfs@freenode and #mm@oftc and did a bit of irc relay betwe= en channels and people. Essential parts of discussion: #xfs 22:00 < dchinner__> arekm: so teh machine has 8GB ram, and it has almost 6G= B of inactive file pages? 22:01 < dchinner__> it seems like there is a lot of reclaimable memory in t= hat machine when it starts having problems... 22:04 < dchinner__> indeed, the ethernet driver is having problems with an = order 0 allocation, when there appears to be lots of reclaimable memory.... 22:04 < arekm> dchinner__: 8GB of ram, 111GB of swap (ssd; looks unused - o= nly ~7.4MB in use), 5x rsync, 1xmysqldump, raid1 and raid6 on sata disks 22:04 < dchinner__> ah: 22:05 < dchinner__> Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB= 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =3D 0kB 22:05 < dchinner__> looks like there's a problem with a zone imbalance 22:05 < dchinner__> Node 0 DMA32: 1487*4kB (UE) 0*8kB 7*16kB (R) 9*32kB (R)= 5*64kB (R) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =3D 6668kB 22:07 < dchinner__> given that the zones have heaps of clean, inactive file= pages, the DMA32 and NORMAL zones are not marked as "all unreclaimable", a= nd there's the free pages in ZONE_NORMAL have been completely drained 22:07 < dchinner__> I'd be asking the mm folks what is going on 22:08 < dchinner__> I'd say XFS is backed up on the same issue so normal zone is drained to 0 #mm 22:15 < arekmx> hi. I'm running backup system on 4.1.12 kernel. Machine mos= tly does rsnapshot/rsyncs (5-10 in parallel). Unfortunately it hits memory = problems often -> http://sprunge.us/VEiE . I've asked XFS people and the conc= lusion was that this is most likely mm problem -> http://sprunge.us/ggVG An= y ideas what could be going on ? (like normal zone is completly drained for examp= le) 22:29 < sasha_> Wild guess: your xfs is on a rather slow storage device (ne= twork?) 22:33 < arekmx> sasha_: raid6 on local rotational sata disks... so could be= slow, especially when 10x rsyncs start and hdd heads need to jump like cra= zy 22:33 < sasha_> Hm, shouldn't be *that* slow though 22:34 < sasha_> The scenario I see is that xfs can't run reclaim fast enoug= h, so the system runs out of memory and it appears to have a lot of "unused= cache" it should have freed 22:34 < sasha_> Look at all those cpus stuck in xfs reclaim, while one of t= hem is waiting for IO 22:38 < sasha_> I suppose the easiest one is just not caching on that files= ystem I don't think there is a way to do that. 22:41 < sasha_> Or maybe your RAID box/disks are dying? Nope, good condition according to smart logs (but started long tests to ret= est) #xfs: 22:40 < dchinner__> arekm: XFs is waiting on slab cache reclaim 22:41 < dchinner__> because there are already as many slab reclaimers as th= ere are AGs, and reclaim can't progress any faster than that 22:41 < dchinner__> but slab reclaim does not prevent clean pages from bein= g reclaimed by direct reclaim during memory allocation 22:41 < dchinner__> it's a completely different part of memory reclaim 22:42 < dchinner__> the fact that XFs is repeatedly saying "memory allocati= on failed" means it is not getting backed up on slab cache reclaim 22:42 < dchinner__> especially as it's a GFP_NOFS allocation which means th= e slab shrinkers are being skipped. 22:43 < dchinner__> direct page cache reclaim should be occurring on GFP_NO= =46S allocation because there are clean pages available to be reclaimed 22:44 < dchinner__> but that is not happening - the processes blocked in th= e shrinkers are not relevant to the XFS allocations that=20 Overall I was asked to post this to both mailing list to get better coverag= e and possibly solution to the problem. kernel config: http://sprunge.us/SRUi # cat /proc/mdstat Personalities : [raid1] [raid6] [raid5] [raid4] md4 : active raid6 sdg[0] sdi[5] sdh[4] sdd[3] sdf[2] sde[1] 11720540160 blocks super 1.2 level 6, 512k chunk, algorithm 2 [6/6] [= UUUUUU] bitmap: 1/22 pages [4KB], 65536KB chunk md3 : active raid6 sdj[9] sdq[7] sdp[6] sdo[10] sdn[4] sdm[8] sdl[2] sdk[1] 5859781632 blocks super 1.2 level 6, 512k chunk, algorithm 2 [8/8] [U= UUUUUUU] bitmap: 3/8 pages [12KB], 65536KB chunk md1 : active raid1 sdb1[0] sdc1[1] 524224 blocks [2/2] [UU] md2 : active raid1 sdb2[0] sdc2[1] 731918016 blocks super 1.2 [2/2] [UU] rsync/rsnapshot processes operate on md3 and md4 =2D-=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / ( maven.pl | pld-linux.org ) From sfr@canb.auug.org.au Tue Nov 10 17:22:03 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id BF58A7F47 for ; Tue, 10 Nov 2015 17:22:03 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9F320304062 for ; Tue, 10 Nov 2015 15:22:00 -0800 (PST) X-ASG-Debug-ID: 1447197715-04bdf03f03103f40001-NocioJ Received: from ozlabs.org (ozlabs.org [103.22.144.67]) by cuda.sgi.com with ESMTP id nctyzgmBHProZLZA (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 10 Nov 2015 15:21:57 -0800 (PST) X-Barracuda-Envelope-From: sfr@canb.auug.org.au X-Barracuda-Apparent-Source-IP: 103.22.144.67 Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPSA id F0221140D97; Wed, 11 Nov 2015 10:21:54 +1100 (AEDT) Date: Wed, 11 Nov 2015 10:21:54 +1100 From: Stephen Rothwell To: Al Viro , Ben Myers , David Chinner , xfs@oss.sgi.com Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org, Andreas Gruenbacher , Brian Foster Subject: linux-next: manual merge of the vfs tree with the xfs tree Message-ID: <20151111102154.507e2a67@canb.auug.org.au> X-ASG-Orig-Subj: linux-next: manual merge of the vfs tree with the xfs tree X-Mailer: Claws Mail 3.13.0 (GTK+ 2.24.28; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Barracuda-Connect: ozlabs.org[103.22.144.67] X-Barracuda-Start-Time: 1447197716 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24286 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi Al, Today's linux-next merge of the vfs tree got a conflict in: fs/xfs/xfs_xattr.c between commit: 67d8e04e345e ("xfs: invalidate cached acl if set directly via xattr") from the xfs tree and commit: 64669c648bc0 ("xattr handlers: Pass handler to operations instead of flags") from the vfs tree. I fixed it up (see below) and can carry the fix as necessary (no action is required). -- Cheers, Stephen Rothwell sfr@canb.auug.org.au diff --cc fs/xfs/xfs_xattr.c index 8294f86441bf,b1850e1489ef..000000000000 --- a/fs/xfs/xfs_xattr.c +++ b/fs/xfs/xfs_xattr.c @@@ -53,34 -54,12 +54,35 @@@ xfs_xattr_get(const struct xattr_handle return asize; } +void +xfs_forget_acl( + struct inode *inode, + const char *name, + int xflags) +{ + /* + * Invalidate any cached ACLs if the user has bypassed the ACL + * interface. We don't validate the content whatsoever so it is caller + * responsibility to provide data in valid format and ensure i_mode is + * consistent. + */ + if (xflags & ATTR_ROOT) { +#ifdef CONFIG_XFS_POSIX_ACL + if (!strcmp(name, SGI_ACL_FILE)) + forget_cached_acl(inode, ACL_TYPE_ACCESS); + else if (!strcmp(name, SGI_ACL_DEFAULT)) + forget_cached_acl(inode, ACL_TYPE_DEFAULT); +#endif + } +} + static int - xfs_xattr_set(struct dentry *dentry, const char *name, const void *value, - size_t size, int flags, int xflags) + xfs_xattr_set(const struct xattr_handler *handler, struct dentry *dentry, + const char *name, const void *value, size_t size, int flags) { - int xflags = handler->flags; - struct xfs_inode *ip = XFS_I(d_inode(dentry)); + struct xfs_inode *ip = XFS_I(d_inode(dentry)); + int error; ++ int xflags = handler->flags; if (strcmp(name, "") == 0) return -EINVAL; From david@fromorbit.com Tue Nov 10 17:26:31 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8D44D7F47 for ; Tue, 10 Nov 2015 17:26:31 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 16F06AC008 for ; Tue, 10 Nov 2015 15:26:30 -0800 (PST) X-ASG-Debug-ID: 1447197987-04cbb0242310f810001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id xJLKGrjRvsrJnKSo for ; Tue, 10 Nov 2015 15:26:28 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BzCQCffEJWPGfGLHleKAECgxCBQoJfg36kagEBAQEBAQaLMoUsgn2BEIYKBAICgUNNAQEBAQEBBwEBAQFBP4Q0AQEBAwE6HCMQCAMOCgklDwUlAwcaE4gmB8QRAQEIAiEZhXSFRYk5BZZIjR6cTYJ0HYFqKjSFVgEBAQ Received: from ppp121-44-198-103.lns20.syd7.internode.on.net (HELO dastard) ([121.44.198.103]) by ipmail06.adl6.internode.on.net with ESMTP; 11 Nov 2015 09:55:43 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZwIIJ-0000lw-7Z; Wed, 11 Nov 2015 10:25:43 +1100 Date: Wed, 11 Nov 2015 10:25:43 +1100 From: Dave Chinner To: Christoph Hellwig Cc: Brian Foster , xfs@oss.sgi.com Subject: Re: [PATCH 2/4] xfs: Introduce writeback context for writepages Message-ID: <20151110232543.GH14311@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/4] xfs: Introduce writeback context for writepages References: <1440479153-1584-1-git-send-email-david@fromorbit.com> <1440479153-1584-3-git-send-email-david@fromorbit.com> <20150831180221.GA16371@bfoster.bfoster> <20150831185612.GB349@infradead.org> <20150831221743.GI26895@dastard> <20150901074103.GA27231@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150901074103.GA27231@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1447197987 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24285 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- [ finally getting back to this :/ ] On Tue, Sep 01, 2015 at 12:41:03AM -0700, Christoph Hellwig wrote: > On Tue, Sep 01, 2015 at 08:17:43AM +1000, Dave Chinner wrote: > > The patch changes the bio allocation patterns - it allocates them on > > the fly and holds them, so we could potentially exhaust the bio > > mempool with this submission technique. > > I've spend time to look over the patch again, and still don't see > a change. Ah, it's in the next patch that I haven't posted that "goes straight to bios". Ignore it for now... > > The ioend allocation pattern > > is different, too, because we only used to have 1 per buffer on a > > writepage call and the last one was used for the write clustering. > > .. that we now build up way bigger ioend chains. > > So back to Brians concern: we can now have fairly large piles of > ioends built up while potentially getting scheduled out, and this > does look like a potential real issue to me. I wonder if we should > (ab-)use the blk_plug_cb infrastructure so that we can flush the > pending ioends out on a context switch? Possibly, but I'm thinking that we should just end up building bios directly and submitting them once they are reach size limits of boundaries rather than building ioend chains for later submission. Did the work for arbitrarily sized bios ever get merged? I can't find any evidence that it did.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From agruenba@redhat.com Tue Nov 10 19:16:40 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A56587F4E for ; Tue, 10 Nov 2015 19:16:40 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 835C4304059 for ; Tue, 10 Nov 2015 17:16:37 -0800 (PST) X-ASG-Debug-ID: 1447204594-04cbb024251116f0001-NocioJ Received: from mail-lb0-f178.google.com (mail-lb0-f178.google.com [209.85.217.178]) by cuda.sgi.com with ESMTP id 4nhfbIM7HhBBVJzg (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 17:16:35 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.85.217.178 Received: by lbbkw15 with SMTP id kw15so8750398lbb.0 for ; Tue, 10 Nov 2015 17:16:33 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=TBjVjmwNQXKZxgZYPTMJPEhzmERUaLLU5C2LpvD2CBU=; b=MGgMq9DgvzhFD5i41PlzOaGCu3M8kC3XQu/jveMfv5JrZnmhN3FlVF1a0679ePf2O4 +OB8VvLHG1QWrBuok0oEn89zL+OxIYpDvZjv4Vq923okPAKMiYAp6mjy5V0U0yLLd9B1 W3tj/MAX6L9/1gD1Q2fpBLjflEzq6C9PTrzeukT9nu+6I5hn+H5o70VNbbHTEkJ47Sf2 L3M84AInKXdA1KmxkbacJ1rM5Xu/YhlYYTD3ZZdIPZQE+40Q5x0TYYy8aKKTNaRufm8h +SEFhPtaoZPow2D5gqFBShkfVqCH+6ULBvlj2Eu+ZGK6L8KsFnxR1KOyuZlch0mly2Jt 29Xw== X-Gm-Message-State: ALoCoQlMr2w08M66odplZX32sxtc73VbkfX5fNSHF/sBvXggtbYRyjNPWpz9wf9wI15b9/eaUMHp MIME-Version: 1.0 X-Received: by 10.112.63.100 with SMTP id f4mr3133199lbs.85.1447204593826; Tue, 10 Nov 2015 17:16:33 -0800 (PST) Received: by 10.112.53.42 with HTTP; Tue, 10 Nov 2015 17:16:33 -0800 (PST) In-Reply-To: <1447067343-31479-20-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> <1447067343-31479-20-git-send-email-agruenba@redhat.com> Date: Wed, 11 Nov 2015 02:16:33 +0100 Message-ID: Subject: Re: [PATCH v15 19/22] richacl: Add richacl xattr handler From: Andreas Gruenbacher X-ASG-Orig-Subj: Re: [PATCH v15 19/22] richacl: Add richacl xattr handler To: Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Cc: Andreas Gruenbacher Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lb0-f178.google.com[209.85.217.178] X-Barracuda-Start-Time: 1447204594 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24288 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Nov 9, 2015 at 12:09 PM, Andreas Gruenbacher wrote: > Add richacl xattr handler implementing the xattr operations based on the > get_richacl and set_richacl inode operations. > > Signed-off-by: Andreas Gruenbacher > --- > fs/richacl_xattr.c | 78 +++++++++++++++++++++++++++++++++++++++++++ > include/linux/richacl_xattr.h | 2 ++ > 2 files changed, 80 insertions(+) > > diff --git a/fs/richacl_xattr.c b/fs/richacl_xattr.c > index 38473b6..767c1f7 100644 > --- a/fs/richacl_xattr.c > +++ b/fs/richacl_xattr.c > @@ -18,7 +18,9 @@ > #include > #include > #include > +#include > #include > +#include > > MODULE_LICENSE("GPL"); > > @@ -161,6 +163,82 @@ richacl_to_xattr(struct user_namespace *user_ns, > } > EXPORT_SYMBOL_GPL(richacl_to_xattr); > > +static size_t > +richacl_xattr_list(struct dentry *dentry, char *list, size_t list_len, > + const char *name, size_t name_len, int handler_flags) > +{ > + const size_t size = sizeof(XATTR_NAME_RICHACL); > + > + if (!IS_RICHACL(d_backing_inode(dentry))) > + return 0; > + if (list && size <= list_len) > + memcpy(list, XATTR_NAME_RICHACL, size); > + return size; > +} > + > +static int > +richacl_xattr_get(struct dentry *dentry, const char *name, void *buffer, > + size_t buffer_size, int handler_flags) > +{ > + struct inode *inode = d_backing_inode(dentry); > + struct richacl *acl; > + int error; > + > + if (strcmp(name, "") != 0) > + return -EINVAL; > + if (!IS_RICHACL(inode)) > + return EOPNOTSUPP; This should have been -EOPNOTSUPP instead. > + if (S_ISLNK(inode->i_mode)) > + return -EOPNOTSUPP; > + acl = get_richacl(inode); > + if (IS_ERR(acl)) > + return PTR_ERR(acl); > + if (acl == NULL) > + return -ENODATA; > + error = richacl_to_xattr(&init_user_ns, acl, buffer, buffer_size); > + richacl_put(acl); > + return error; > +} > + > +static int > +richacl_xattr_set(struct dentry *dentry, const char *name, > + const void *value, size_t size, int flags, int handler_flags) > +{ > + struct inode *inode = d_backing_inode(dentry); > + struct richacl *acl = NULL; > + int ret; > + > + if (strcmp(name, "") != 0) > + return -EINVAL; > + if (!IS_RICHACL(inode)) > + return -EOPNOTSUPP; > + if (!inode->i_op->set_richacl) > + return -EOPNOTSUPP; > + > + if (!uid_eq(current_fsuid(), inode->i_uid) && > + inode_permission(inode, MAY_CHMOD) && > + !capable(CAP_FOWNER)) > + return -EPERM; > + > + if (value) { > + acl = richacl_from_xattr(&init_user_ns, value, size); > + if (IS_ERR(acl)) > + return PTR_ERR(acl); > + } > + > + ret = inode->i_op->set_richacl(inode, acl); > + richacl_put(acl); > + return ret; > +} > + > +struct xattr_handler richacl_xattr_handler = { > + .prefix = XATTR_NAME_RICHACL, > + .list = richacl_xattr_list, > + .get = richacl_xattr_get, > + .set = richacl_xattr_set, > +}; > +EXPORT_SYMBOL(richacl_xattr_handler); > + > /* > * Fix up the uids and gids in richacl extended attributes in place. > */ > diff --git a/include/linux/richacl_xattr.h b/include/linux/richacl_xattr.h > index 7fc5ca8..45ec27a 100644 > --- a/include/linux/richacl_xattr.h > +++ b/include/linux/richacl_xattr.h > @@ -39,4 +39,6 @@ static inline void richacl_fix_xattr_to_user(void *value, size_t size) > } > #endif > > +extern struct xattr_handler richacl_xattr_handler; > + > #endif /* __RICHACL_XATTR_H */ > -- > 2.5.0 > From seminars@info.ve10.com Tue Nov 10 22:38:15 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.2 required=5.0 tests=HTML_FONT_SIZE_HUGE, HTML_MESSAGE,MIME_HTML_ONLY,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8D46E7F37 for ; Tue, 10 Nov 2015 22:38:15 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6F4DF8F8033 for ; 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Tue, 10 Nov 2015 20:37:57 -0800 (envelope-from ) From: The Professional Development Workshop Reply-To: The Professional Development Workshop To: xfs@oss.sgi.com Subject: Communication Skills for Women X-RID: phqx X-ASG-Orig-Subj: Communication Skills for Women X-PMG-Userid: IG25 X-PMG-Msgid: 57 X-PMG-Recipient: xfs@oss.sgi.com X-PID: 4947901010 X-XID: 6948397 X-CID: 57 MIME-Version: 1.0 Content-Type: text/html; charset=us-ascii Message-ID: <0.0.68.B71.1D11C3ABD0DD9DC.0@114-19.m057.com> Date: Tue, 10 Nov 2015 20:37:57 -0800 X-Barracuda-Connect: 114-19.m057.com[216.39.114.19] X-Barracuda-Start-Time: 1447216688 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.05 X-Barracuda-Spam-Status: No, SCORE=1.05 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_FONT_SIZE_HUGE, HTML_MESSAGE, INTERRUPTUS, INTERRUPTUS_2, MIME_HTML_ONLY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24294 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.39 HTML_FONT_SIZE_HUGE BODY: HTML font size is huge 0.00 MIME_HTML_ONLY BODY: Message only has text/html MIME parts 0.00 HTML_MESSAGE BODY: HTML included in message 0.01 INTERRUPTUS RAW: Message looks to contain HTML-interrupted text 0.65 INTERRUPTUS_2 Message looks to contain HTML-interrupted text Communication Skills for Women
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From hejianet@gmail.com Wed Nov 11 00:37:58 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 55C257F37 for ; Wed, 11 Nov 2015 00:37:58 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 36AC0304053 for ; Tue, 10 Nov 2015 22:37:58 -0800 (PST) X-ASG-Debug-ID: 1447223873-04cbb024251173d0001-NocioJ Received: from mail-oi0-f48.google.com (mail-oi0-f48.google.com [209.85.218.48]) by cuda.sgi.com with ESMTP id vmK2vQlu0lj26RAm (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 22:37:53 -0800 (PST) X-Barracuda-Envelope-From: hejianet@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.218.48 Received: by oiad129 with SMTP id d129so11380165oia.0 for ; Tue, 10 Nov 2015 22:37:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=subject:to:references:cc:from:message-id:date:user-agent :mime-version:in-reply-to:content-type:content-transfer-encoding; bh=w4xwi+wTj6m5mLUy1zkilI7s2t/xElK4vfxbCkurYCc=; b=IafeHGn0kNuHOD3US8IppGbeiN/NeTSfPZd0O7OLTQ5b4Zb4+mZoysSJjVUKC+OpNY Xy0KVawR+kzUdsj93jqR8d3fPZWziyXQkU7r2boXiKlTBL8UB7N8IYXRyEEAqwEF/nDL SMNMtVl55yheoDSSt5/7j650auVdRW3HlxGh70/rxi+6x4NQ12XPmnyegcr70r4dMmzb kg6jBwAS/Ujlz1yI3ALveB7aB4wDrD4/4JgGH+cxRLCPnjoRd5E+VXlwK5rQrI3i1HbS 74saoyskQS7p2s73RefxXa3m+MDj3sazbMRRT4yQHrQq1nU1zpRmVTYoAZpISdrL48wK kvoQ== X-Received: by 10.202.81.195 with SMTP id f186mr3967692oib.12.1447223873066; Tue, 10 Nov 2015 22:37:53 -0800 (PST) Received: from justin.cn.ibm.com (pok1.bluebird.ibm.com. [129.42.208.177]) by smtp.gmail.com with ESMTPSA id xh10sm1345488oeb.16.2015.11.10.22.37.50 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 10 Nov 2015 22:37:52 -0800 (PST) Subject: Re: [PATCH] libxfs: Optimize the loop for xfs_bitmap_empty To: Brian Foster X-ASG-Orig-Subj: Re: [PATCH] libxfs: Optimize the loop for xfs_bitmap_empty References: <1447079482-10650-1-git-send-email-hejianet@gmail.com> <20151110125403.GC21670@bfoster.bfoster> Cc: xfs@oss.sgi.com From: hejianet Message-ID: <5642E23F.6050009@gmail.com> Date: Wed, 11 Nov 2015 14:37:51 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151110125403.GC21670@bfoster.bfoster> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Barracuda-Connect: mail-oi0-f48.google.com[209.85.218.48] X-Barracuda-Start-Time: 1447223873 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24296 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Hi Brian Thanks, I will resend the patch V2 B.R. Justin 在 11/10/15 8:54 PM, Brian Foster 写é“: > On Mon, Nov 09, 2015 at 10:31:22PM +0800, Jia He wrote: >> If there is any non zero bit in a long bitmap, it can jump out of the for >> loop and finish the function as soon as possible. >> >> Signed-off-by: Jia He >> Cc: Dave Chinner >> Cc: Brian Foster >> --- >> fs/xfs/libxfs/xfs_bit.c | 2 ++ >> 1 file changed, 2 insertions(+) >> >> diff --git a/fs/xfs/libxfs/xfs_bit.c b/fs/xfs/libxfs/xfs_bit.c >> index 0e8885a..84614b0 100644 >> --- a/fs/xfs/libxfs/xfs_bit.c >> +++ b/fs/xfs/libxfs/xfs_bit.c >> @@ -36,6 +36,8 @@ xfs_bitmap_empty(uint *map, uint size) >> >> for (i = 0; i < size; i++) { >> ret |= map[i]; >> + if (ret != 0) >> + return 0; >> } >> > Seems Ok to me, but if we're going to do this, why not just kill ret > entirely? For example, check 'if (map[i] != 0) return 0;' in the loop > and unconditionally return 1 if we make it to the end. > > Brian > >> return (ret == 0); >> -- >> 2.5.0 >> >> _______________________________________________ >> xfs mailing list >> xfs@oss.sgi.com >> http://oss.sgi.com/mailman/listinfo/xfs > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > From liruilong0128@gmail.com Wed Nov 11 00:38:30 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,HTML_MESSAGE,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 25D137F37 for ; Wed, 11 Nov 2015 00:38:30 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 088348F8035 for ; Tue, 10 Nov 2015 22:38:26 -0800 (PST) X-ASG-Debug-ID: 1447223904-04bdf03f0410ba10001-NocioJ Received: from mail-qg0-f67.google.com (mail-qg0-f67.google.com [209.85.192.67]) by cuda.sgi.com with ESMTP id CMcnMja3Mctr1VyS (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 22:38:25 -0800 (PST) X-Barracuda-Envelope-From: liruilong0128@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.192.67 Received: by qgad10 with SMTP id d10so1912575qga.0 for ; Tue, 10 Nov 2015 22:38:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=ed0C7IjxTAZpsVBSj6XyCjc1tA9njF74Eu8srKIiUzc=; b=tGzXB5pSVz65Znx122Eud22DtexQ/O2IxXNdsa5TVvHXgyaOMFV8+8r5RexuPfd09K aC+UpXjeIL557m3aWAXIy/BaX7Fj7j1BLbpaG8DHgsE8GYfmlnZqvsYBPnDXSOYp7aG+ aaF4BX9p5RKB2VFHB9mHOudujtd/29t37lIZiXbeQKPSRu/TXUI+lLdujkdNlvPpjLKc su/kQwGPaDToy6CwMWg6BpDqGxBhbKqmuZZ0kwLIkdMioCk+AGuK/cIlDDQi8uJr5Vk2 EAYt/vo1JQUaQeBoZIb692vZvKpN+HK0qdU6a9Xad8BOKOmsUEwxxL80ZjiFOT0JzFak eF5g== MIME-Version: 1.0 X-Received: by 10.140.155.75 with SMTP id b72mr9145679qhb.29.1447223904455; Tue, 10 Nov 2015 22:38:24 -0800 (PST) Received: by 10.140.81.175 with HTTP; Tue, 10 Nov 2015 22:38:24 -0800 (PST) Date: Wed, 11 Nov 2015 14:38:24 +0800 Message-ID: Subject: xfsprogs install From: rui li X-ASG-Orig-Subj: xfsprogs install To: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=001a113991eabc52bd05243e125a X-Barracuda-Connect: mail-qg0-f67.google.com[209.85.192.67] X-Barracuda-Start-Time: 1447223905 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.20 X-Barracuda-Spam-Status: No, SCORE=0.20 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA148d, DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24296 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message 0.20 BSF_SC0_SA148d Custom Rule SA148d --001a113991eabc52bd05243e125a Content-Type: text/plain; charset=UTF-8 hello when i install xfsprogs i hava follwing problems FATAL ERROR: could not find a valid BLKID header Install the Block device ID development package could you give me some help? thanks --001a113991eabc52bd05243e125a Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
hello=C2=A0
when i install xfsprogs i hava follwing pr= oblems

FATAL ERROR: could not find a valid BLKID h= eader
Install the Block device ID development package
<= br>
could you give me some help?

thanks<= /div>
--001a113991eabc52bd05243e125a-- From hejianet@gmail.com Wed Nov 11 01:49:17 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D63697F4E for ; Wed, 11 Nov 2015 01:49:17 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 76871AC007 for ; Tue, 10 Nov 2015 23:49:14 -0800 (PST) X-ASG-Debug-ID: 1447228152-04bdf03f0310cf30001-NocioJ Received: from mail-ob0-f175.google.com (mail-ob0-f175.google.com [209.85.214.175]) by cuda.sgi.com with ESMTP id wfNn9m5up1SWRMHL (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 23:49:13 -0800 (PST) X-Barracuda-Envelope-From: hejianet@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.214.175 Received: by obbnk6 with SMTP id nk6so16723901obb.2 for ; Tue, 10 Nov 2015 23:49:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=nqwfne499QA+5j2nO94JT01Zoubr4ZPQtT7lgU8ckdE=; b=LVM/ySvT/NoOL7yDc8Udo25MX5Ikttb2JOFMUBWHZEpp2kN10b3ztKrOOKhKj8staV GfR8mTAXBV/LahCv9lBsE/piE/VG74MCRyT6AS8D9kPrHGzMBZq333KkSf4uaLtzkmsK PKQWAfWkTMFjh2Fmls91xbC13ZIKH+RqEMW+6/O1vwSAHIBsdBDfRoCKK7jxs+lETyLI 8mrDkatAJQjGsieE6OTxMtMJdcGyQmynXBP46zYDHvWb8hZFPRURcTOkbWLGxr70BAxc Bu75yariWWHrbVsqkdGmIdkNQ6uwbpAdePHryWn27sXIjRlpmdgW3rkZN5aDDt9Zokhs m8Nw== X-Received: by 10.182.153.101 with SMTP id vf5mr4160410obb.81.1447228152619; Tue, 10 Nov 2015 23:49:12 -0800 (PST) Received: from localhost.localdomain.localdomain ([60.247.125.148]) by smtp.gmail.com with ESMTPSA id ta5sm1495670obc.13.2015.11.10.23.49.10 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 10 Nov 2015 23:49:11 -0800 (PST) From: Jia He To: xfs@oss.sgi.com Cc: Jia He , Dave Chinner , Brian Foster Subject: [PATCH v2] libxfs: Optimize the loop for xfs_bitmap_empty Date: Wed, 11 Nov 2015 15:49:01 +0800 X-ASG-Orig-Subj: [PATCH v2] libxfs: Optimize the loop for xfs_bitmap_empty Message-Id: <1447228141-17408-1-git-send-email-hejianet@gmail.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <20151110125403.GC21670@bfoster.bfoster> References: <20151110125403.GC21670@bfoster.bfoster> X-Barracuda-Connect: mail-ob0-f175.google.com[209.85.214.175] X-Barracuda-Start-Time: 1447228153 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24297 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature If there is any non zero bit in a long bitmap, it can jump out of the loop and finish the function as soon as possible. Signed-off-by: Jia He Cc: Dave Chinner Cc: Brian Foster --- fs/xfs/libxfs/xfs_bit.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bit.c b/fs/xfs/libxfs/xfs_bit.c index 0e8885a..0a94cce 100644 --- a/fs/xfs/libxfs/xfs_bit.c +++ b/fs/xfs/libxfs/xfs_bit.c @@ -32,13 +32,13 @@ int xfs_bitmap_empty(uint *map, uint size) { uint i; - uint ret = 0; for (i = 0; i < size; i++) { - ret |= map[i]; + if (map[i] != 0) + return 0; } - return (ret == 0); + return 1; } /* -- 2.5.0 From BATV+66af426afb9dea266a66+4462+infradead.org+hch@bombadil.srs.infradead.org Wed Nov 11 01:57:21 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BA0D57F52 for ; Wed, 11 Nov 2015 01:57:21 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4537FAC005 for ; Tue, 10 Nov 2015 23:57:21 -0800 (PST) X-ASG-Debug-ID: 1447228639-04cbb02424118b10001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id ImsxWAXcUrpjTCPw (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 10 Nov 2015 23:57:19 -0800 (PST) X-Barracuda-Envelope-From: BATV+66af426afb9dea266a66+4462+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZwQHD-0007uE-S6; Wed, 11 Nov 2015 07:57:07 +0000 Date: Tue, 10 Nov 2015 23:57:07 -0800 From: Christoph Hellwig To: Andreas Gruenbacher Cc: Christoph Hellwig , Alexander Viro , Theodore Ts'o , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Subject: Re: [PATCH v15 00/22] Richacls (Core and Ext4) Message-ID: <20151111075707.GA23752@infradead.org> X-ASG-Orig-Subj: Re: [PATCH v15 00/22] Richacls (Core and Ext4) References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> <20151110112943.GA17038@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447228639 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24297 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Tue, Nov 10, 2015 at 01:39:52PM +0100, Andreas Gruenbacher wrote: > > It still has the same crappy fs interfaces with lots of boilerplate > > code > > Could you please be more specific so that I can trace this complaint > to some actual code? if (IS_RICHACL()) richacl_foo() else posix_acl_foo() for every call from the filesystem is the major one that came to mind. > > and still abuses xattrs instead of a proper syscall interface. > > That's far from being ready to merge. > > The xattr syscall interface is what's used for very similar kinds of > things today; using it for richacls as well sure does not count as > abuse. Things could be improved in the xattr interface and in its > implementation, but we need more substantial reasons than that for > reimplementing the wheel once again. And it's a horrible interface. Look at all the pain for example in XFS which has a different ACL format, or in fact everyone who just uses a different xattr name or even none at all. And all the mess of people trying to shoe horn crazy interfaces into xattrs. It was an experiment worth trying with Posix ACLs, but it failed, so do not repeat it. From BATV+66af426afb9dea266a66+4462+infradead.org+hch@bombadil.srs.infradead.org Wed Nov 11 05:32:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3A2E27F52 for ; Wed, 11 Nov 2015 05:32:47 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 07DAB30405F for ; Wed, 11 Nov 2015 03:32:44 -0800 (PST) X-ASG-Debug-ID: 1447241562-04bdf03f04114190001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id XHzfppW7vbz6RzCU (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 11 Nov 2015 03:32:42 -0800 (PST) X-Barracuda-Envelope-From: BATV+66af426afb9dea266a66+4462+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZwTdp-0001rF-45; Wed, 11 Nov 2015 11:32:41 +0000 Date: Wed, 11 Nov 2015 03:32:41 -0800 From: Christoph Hellwig To: Dave Chinner Cc: Brian Foster , xfs@oss.sgi.com Subject: Re: [PATCH 2/4] xfs: Introduce writeback context for writepages Message-ID: <20151111113241.GA7083@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/4] xfs: Introduce writeback context for writepages References: <1440479153-1584-1-git-send-email-david@fromorbit.com> <1440479153-1584-3-git-send-email-david@fromorbit.com> <20150831180221.GA16371@bfoster.bfoster> <20150831185612.GB349@infradead.org> <20150831221743.GI26895@dastard> <20150901074103.GA27231@infradead.org> <20151110232543.GH14311@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151110232543.GH14311@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447241562 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24301 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Wed, Nov 11, 2015 at 10:25:43AM +1100, Dave Chinner wrote: > Did the work for arbitrarily sized bios ever get merged? I can't > find any evidence that it did.... Yes, it landed in 4.3. From robin.listas@gmail.com Wed Nov 11 06:26:02 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9ED0D7F56 for ; Wed, 11 Nov 2015 06:26:02 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 65A3C30404E for ; Wed, 11 Nov 2015 04:25:59 -0800 (PST) X-ASG-Debug-ID: 1447244756-04bdf03f041158f0001-NocioJ Received: from mail-wm0-f49.google.com (mail-wm0-f49.google.com [74.125.82.49]) by cuda.sgi.com with ESMTP id SCuYeDFT365H3GYI (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 11 Nov 2015 04:25:57 -0800 (PST) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.49 Received: by wmec201 with SMTP id c201so44353379wme.1 for ; Wed, 11 Nov 2015 04:25:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:subject:to:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-type:content-transfer-encoding; bh=XlLKUEdtu4/xftnifWcpvm4eSh37n8PNqTfgFeDXqro=; b=YAZY0eXQ0iBr6m0kiHWeTELaZjCqdO/KbSnTVektJJkoF3gHY6yNTxrPzT11hfGhHF s2Z/XiGSOdPv2m7JgzJBa+AvUfvSU/iMQ7C28sd7fMqfASISB0+4urslsKIj/HrjazjD gPloSni5Y39KMq9Fr9NU2VyReCmEsVWbZaUWsx+ifn5IfKga2eaDjcvrzmJaUaxYAk9C rA9AHrfAPxeKtEZ9gJHzC8CIQxpjfAc/fDeVO9ZQS13OzF2uMqtKpyf4XKO0Au8JOZXF hQH9TevKT/fo2NzmFcsd7RUtk2ONaZ4MMegxijW9Dx243vP+17L5sjWVxh6zTfzLhS/8 bHIQ== X-Received: by 10.194.203.106 with SMTP id kp10mr10030735wjc.86.1447244755693; Wed, 11 Nov 2015 04:25:55 -0800 (PST) Received: from Telcontar.valinor (248.Red-81-36-103.dynamicIP.rima-tde.net. [81.36.103.248]) by smtp.gmail.com with ESMTPSA id an7sm8739044wjc.44.2015.11.11.04.25.54 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 11 Nov 2015 04:25:54 -0800 (PST) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id 7A3A960ECD for ; Wed, 11 Nov 2015 13:25:53 +0100 (CET) X-Virus-Scanned: amavisd-new at valinor Received: from Telcontar.valinor ([127.0.0.1]) by localhost (Telcontar.valinor [127.0.0.1]) (amavisd-new, port 10024) with LMTP id CBhHyj5S5Seq for ; Wed, 11 Nov 2015 13:25:53 +0100 (CET) Received: from [127.0.0.1] (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id 56E86606D8 for ; Wed, 11 Nov 2015 13:25:53 +0100 (CET) Subject: Re: xfsprogs install To: XFS mail list X-ASG-Orig-Subj: Re: xfsprogs install References: From: "Carlos E. R." Message-ID: <564333D1.8070900@opensuse.org> Date: Wed, 11 Nov 2015 13:25:53 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail-wm0-f49.google.com[74.125.82.49] X-Barracuda-Start-Time: 1447244757 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24302 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 2015-11-11 07:38, rui li wrote: > hello when i install xfsprogs i hava follwing problems Maybe you have to say what distribution you are using - -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlZDM88ACgkQtTMYHG2NR9VMNACfak0n0p0Z8t6SQY1gYxgWHdzL 1/YAoIqUyEHuY8T4QUKMVXTBi7uTpkE3 =qo1N -----END PGP SIGNATURE----- From bfoster@redhat.com Wed Nov 11 06:48:39 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E92137F50 for ; Wed, 11 Nov 2015 06:48:39 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id CC11D8F8049 for ; Wed, 11 Nov 2015 04:48:36 -0800 (PST) X-ASG-Debug-ID: 1447246115-04bdf03f021162a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id TyWt0zaiq9DVYXgX (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 04:48:35 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 3D3FEC0BA188; Wed, 11 Nov 2015 12:48:35 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-67.bos.redhat.com [10.18.41.67]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tABCmYK0029523; Wed, 11 Nov 2015 07:48:35 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 1F9AE123AAD; Wed, 11 Nov 2015 07:48:34 -0500 (EST) Date: Wed, 11 Nov 2015 07:48:34 -0500 From: Brian Foster To: Jia He Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2] libxfs: Optimize the loop for xfs_bitmap_empty Message-ID: <20151111124833.GB52153@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH v2] libxfs: Optimize the loop for xfs_bitmap_empty References: <20151110125403.GC21670@bfoster.bfoster> <1447228141-17408-1-git-send-email-hejianet@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447228141-17408-1-git-send-email-hejianet@gmail.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447246115 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 11, 2015 at 03:49:01PM +0800, Jia He wrote: > If there is any non zero bit in a long bitmap, it can jump out of the > loop and finish the function as soon as possible. > > Signed-off-by: Jia He > Cc: Dave Chinner > Cc: Brian Foster > --- Looks good to me: Reviewed-by: Brian Foster > fs/xfs/libxfs/xfs_bit.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_bit.c b/fs/xfs/libxfs/xfs_bit.c > index 0e8885a..0a94cce 100644 > --- a/fs/xfs/libxfs/xfs_bit.c > +++ b/fs/xfs/libxfs/xfs_bit.c > @@ -32,13 +32,13 @@ int > xfs_bitmap_empty(uint *map, uint size) > { > uint i; > - uint ret = 0; > > for (i = 0; i < size; i++) { > - ret |= map[i]; > + if (map[i] != 0) > + return 0; > } > > - return (ret == 0); > + return 1; > } > > /* > -- > 2.5.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From cmaiolino@redhat.com Wed Nov 11 06:50:30 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0C0AD7F5E for ; Wed, 11 Nov 2015 06:50:30 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id DFA6B8F804B for ; Wed, 11 Nov 2015 04:50:29 -0800 (PST) X-ASG-Debug-ID: 1447246225-04bdf03f03116350001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id CB2kkshCrc0zH7HU (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 04:50:25 -0800 (PST) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 7CC02935D4; Wed, 11 Nov 2015 12:50:25 +0000 (UTC) Received: from redhat.com (dhcp-26-103.brq.redhat.com [10.34.26.103]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tABCoM5h018707 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 11 Nov 2015 07:50:24 -0500 Date: Wed, 11 Nov 2015 13:50:22 +0100 From: Carlos Maiolino To: rui li Cc: xfs@oss.sgi.com Subject: Re: xfsprogs install Message-ID: <20151111125021.GA28745@redhat.com> X-ASG-Orig-Subj: Re: xfsprogs install Mail-Followup-To: rui li , xfs@oss.sgi.com References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447246225 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 11, 2015 at 02:38:24PM +0800, rui li wrote: > hello > when i install xfsprogs i hava follwing problems > FATAL ERROR: could not find a valid BLKID header > Install the Block device ID development package > could you give me some help? > thanks install libblkid-devel package in your distribution, or any similar package that your distribution provides with libblkid headers. > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs -- Carlos From jtulak@redhat.com Wed Nov 11 07:13:51 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B989C7F61 for ; Wed, 11 Nov 2015 07:13:51 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 32126AC002 for ; Wed, 11 Nov 2015 05:13:48 -0800 (PST) X-ASG-Debug-ID: 1447247623-04cb6c296d11af40001-NocioJ Received: from mail-io0-f174.google.com (mail-io0-f174.google.com [209.85.223.174]) by cuda.sgi.com with ESMTP id gVE3r7PoKASZumvb (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 11 Nov 2015 05:13:43 -0800 (PST) X-Barracuda-Envelope-From: jtulak@redhat.com X-Barracuda-RBL-Trusted-Forwarder: 209.85.223.174 Received: by iouu10 with SMTP id u10so24762311iou.0 for ; Wed, 11 Nov 2015 05:13:43 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc:content-type; bh=9lOKPuhVMOpWTShrQLjNBhQlMd606R77BagQmivW+LY=; b=H3/GZ0YMwgIJLj2qyIfVODZY5N3iLsUaOx+uWt3vN7Ys7H0vvi003OvLhzzSI4Y3v1 8955Rpct6l1MqzaIxzRsj1rgp/kR40DPo2qElFTseJNgD0fslArdZgTWeUMHn+5VJ5F9 p4F2IshUE/hZF1G3RfhkXXDa2/RLmb8YZUAO4+o0V1VT+DGJR/zadSrMr0tGYKTczm1w hU8OKxaGnFnN64XmcQj7aECYzLkeBKBu0t6qCSpYBekEnFSGkn7grZc8V/cUILqswlzK 6/vRFwkKwVQpB5muJ5vZAVdllT0PvlUswXCHQ99/KLQVt3TJA8mcjK6Dp4KhQZCd9Ynl 9viA== X-Gm-Message-State: ALoCoQlRkqclCH82CmTiZlcL3VJae3udnhAvpm30mx2Yma49ic3A/yecyXG4W3RmKxxhjOksLq2R X-Received: by 10.107.150.12 with SMTP id y12mr10583692iod.52.1447247622813; Wed, 11 Nov 2015 05:13:42 -0800 (PST) MIME-Version: 1.0 Received: by 10.36.84.6 with HTTP; Wed, 11 Nov 2015 05:13:23 -0800 (PST) In-Reply-To: <5642550C.4040603@redhat.com> References: <56423596.3030300@redhat.com> <20151110202806.GG14311@dastard> <5642550C.4040603@redhat.com> From: Jan Tulak Date: Wed, 11 Nov 2015 14:13:23 +0100 Message-ID: Subject: Re: [PATCH] xfsprogs: fix cut & paste error in xfs_fsr.c To: Eric Sandeen X-ASG-Orig-Subj: Re: [PATCH] xfsprogs: fix cut & paste error in xfs_fsr.c Cc: Dave Chinner , xfs-oss Content-Type: multipart/alternative; boundary=001a114032fc761b9405244398e3 X-Barracuda-Connect: mail-io0-f174.google.com[209.85.223.174] X-Barracuda-Start-Time: 1447247623 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.01 X-Barracuda-Spam-Status: No, SCORE=0.01 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA_TO_FROM_DOMAIN_MATCH, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24302 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message 0.01 BSF_SC0_SA_TO_FROM_DOMAIN_MATCH Sender Domain Matches Recipient Domain --001a114032fc761b9405244398e3 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Tue, Nov 10, 2015 at 9:35 PM, Eric Sandeen wrote: > > On Tue, Nov 10, 2015 at 12:21:10PM -0600, Eric Sandeen wrote: > >> Commit: > >> > >> 7141fc xfsprogs: make fsr use mntinfo when there is no mntent > >> > >> added an inadvertent "break;" to initallfs() after the call > >> to find_mountpoint_check(); this is likely a cut & paste error > >> from the call in find_mountpoint(), where we really *do* want to > >> stop after the first one we find. > >> > >> Fix that by removing the break, and fix the declaration-after-code. > > > > That's not the right fix - the find_mountpoint_check() shoul dnot be > > there at all. Patch to clean it all up is below. > > > > -Dave. > > -- > > Dave Chinner > > david@fromorbit.com > > > > fsr: clean up mountpoint checks > > > > From: Dave Chinner > > > > Fix up a stray hunk of code from commit 7141fc5 ("xfsprogs: make fsr > > use mntinfo when there is no mntent") that coverity reported. Also > > clean up a couple of whitespace issues introduced with that commit, > > too. > > Um, ok, well it wasn't your misapplication, it was there in the original > patch, > and I wasn't sure of Jan's intent, having gone so far as to add local var= s > to support that placement. ;) > > This seems fine, I guess I'll send another patch to make *ms local to > find_mountpoint_check(), and rename some vars ("sb" and "mp" have their > own expected meanings in xfsprogs) > =E2=80=8BHmmm, sorry about the mess... :-( I will look on the patch again t= oo. Speaking about Coverity, is there a way I can get to it and use it myself? (Maybe it may be b=E2=80=8Better to continue this off list - from what I he= ard, Coverity guys don't like to be talk about publicly...) Cheers, Jan --=20 Jan Tulak jtulak@redhat.com / jan@tulak.me --001a114032fc761b9405244398e3 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On Tue, No= v 10, 2015 at 9:35 PM, Eric Sandeen <sandeen@redhat.com> wrote:
> On Tue, Nov 10, 20= 15 at 12:21:10PM -0600, Eric Sandeen wrote:
>> Commit:
>>
>> 7141fc xfsprogs: make fsr use mntinfo when there is no mntent
>>
>> added an inadvertent "break;" to initallfs() after the c= all
>> to find_mountpoint_check(); this is likely a cut & paste error=
>> from the call in find_mountpoint(), where we really *do* want to >> stop after the first one we find.
>>
>> Fix that by removing the break, and fix the declaration-after-code= .
>
> That's not the right fix - the find_mountpoint_check() shoul dnot = be
> there at all. Patch to clean it all up is below.
>
> -Dave.
> --
> Dave Chinner
> david@fromorbit.com
>
> fsr: clean up mountpoint checks
>
> From: Dave Chinner <dchinner= @redhat.com>
>
> Fix up a stray hunk of code from commit 7141fc5 ("xfsprogs: make = fsr
> use mntinfo when there is no mntent") that coverity reported. Als= o
> clean up a couple of whitespace issues introduced with that=C2=A0 comm= it,
> too.

Um, ok, well it wasn't your misapplication, it was there in the = original patch,
and I wasn't sure of Jan's intent, having gone so far as to add loc= al vars
to support that placement.=C2=A0 ;)

This seems fine, I guess I'll send another patch to make *ms local to find_mountpoint_check(), and rename some vars ("sb" and "mp&= quot; have their
own expected meanings in xfsprogs)

=E2=80=8BHmmm, sorry about the mess... :-( I will loo= k on the patch again too.
Speaking about =C2=A0Coverity, is there a= way I can get to it and use it myself? (Maybe it may be b=E2=80=8Better to= continue this off list - from what I heard, Coverity guys don't like t= o be talk about publicly...)

Cheers,
Jan

--
--001a114032fc761b9405244398e3-- From BATV+66af426afb9dea266a66+4462+infradead.org+hch@bombadil.srs.infradead.org Wed Nov 11 07:56:50 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CD80E7F63 for ; Wed, 11 Nov 2015 07:56:50 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id AEA60304032 for ; Wed, 11 Nov 2015 05:56:47 -0800 (PST) X-ASG-Debug-ID: 1447250206-04cb6c296b11bd10001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id EbYpAtXC1otHajzO (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 11 Nov 2015 05:56:46 -0800 (PST) X-Barracuda-Envelope-From: BATV+66af426afb9dea266a66+4462+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZwVt9-0001WP-3h; Wed, 11 Nov 2015 13:56:39 +0000 Date: Wed, 11 Nov 2015 05:56:39 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Christoph Hellwig , david@fromorbit.com, fstests@vger.kernel.org, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [RFCv3 00/12] xfstests: test the btrfs/xfs reflink/dedupe ioctls Message-ID: <20151111135639.GA4760@infradead.org> X-ASG-Orig-Subj: Re: [RFCv3 00/12] xfstests: test the btrfs/xfs reflink/dedupe ioctls References: <20151007051257.3260.73072.stgit@birch.djwong.org> <20151109075926.GB17974@infradead.org> <20151109184913.GB3255@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151109184913.GB3255@birch.djwong.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447250206 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24303 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Mon, Nov 09, 2015 at 10:49:13AM -0800, Darrick J. Wong wrote: > I found a few more bugs in the kernel-side implementation, which might explain > that. I'm about to start working on making CoW less crappy, but I'll push all > the patches out to github. (I wasn't planning on patchbombing again until > December.) Yes, please push your WIP code out as often as possible! Btw, here is another additional fixup, as two tests were wrongly tagged as needing reflink instead of dedupe: diff --git a/tests/generic/827 b/tests/generic/827 index cc1bc52..c8ce7cf 100755 --- a/tests/generic/827 +++ b/tests/generic/827 @@ -47,7 +47,7 @@ _supported_fs generic _supported_os Linux _require_scratch -_require_xfs_io_command "reflink" +_require_xfs_io_command "dedupe" echo "Format and mount" _scratch_mkfs > $seqres.full 2>&1 diff --git a/tests/generic/828 b/tests/generic/828 index 1757985..f5b7298 100755 --- a/tests/generic/828 +++ b/tests/generic/828 @@ -47,7 +47,7 @@ _supported_fs generic _supported_os Linux _require_scratch -_require_xfs_io_command "reflink" +_require_xfs_io_command "dedupe" echo "Format and mount" _scratch_mkfs > $seqres.full 2>&1 From agruenba@redhat.com Wed Nov 11 07:59:35 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6D7737F67 for ; Wed, 11 Nov 2015 07:59:35 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3B23E8F8035 for ; Wed, 11 Nov 2015 05:59:35 -0800 (PST) X-ASG-Debug-ID: 1447250371-04bdf03f03117b80001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ZtQVfjACQJmjLp0C (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 05:59:31 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id C864719D054; Wed, 11 Nov 2015 13:59:30 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-232.ams2.redhat.com [10.36.6.232]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tABDxMYC020889; Wed, 11 Nov 2015 08:59:23 -0500 From: Andreas Gruenbacher To: Christoph Hellwig Cc: Andreas Gruenbacher , Alexander Viro , "Theodore Ts'o" , Andreas Dilger , "J. Bruce Fields" , Jeff Layton , Trond Myklebust , Anna Schumaker , Dave Chinner , linux-ext4 , XFS Developers , LKML , linux-fsdevel , Linux NFS Mailing List , linux-cifs@vger.kernel.org, Linux API Subject: Re: [PATCH v15 00/22] Richacls (Core and Ext4) Date: Wed, 11 Nov 2015 14:59:21 +0100 X-ASG-Orig-Subj: Re: [PATCH v15 00/22] Richacls (Core and Ext4) Message-Id: <1447250361-5561-1-git-send-email-agruenba@redhat.com> References: <1447067343-31479-1-git-send-email-agruenba@redhat.com> <20151110112943.GA17038@infradead.org> <20151111075707.GA23752@infradead.org> In-Reply-To: <20151111075707.GA23752@infradead.org> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447250371 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 11, 2015 at 8:57 AM, Christoph Hellwig wrote: > On Tue, Nov 10, 2015 at 01:39:52PM +0100, Andreas Gruenbacher wrote: >> > It still has the same crappy fs interfaces with lots of boilerplate >> > code >> >> Could you please be more specific so that I can trace this complaint >> to some actual code? > > if (IS_RICHACL()) > richacl_foo() > else > posix_acl_foo() > > for every call from the filesystem is the major one that came to mind. There are two such places in ext4, ext4_new_acl and ext4_acl_chmod. Those could be replaced by function pointers as below, I'm not sure we seriously want to consider that. In xfs, we have xfs_acl_chmod which is similar. xfs_generic_create doesn't quite follow this pattern. This seems to be about it though. Thanks, Andreas --- fs/ext4/ext4.h | 10 ++++++++++ fs/ext4/ialloc.c | 11 +---------- fs/ext4/inode.c | 11 +---------- fs/ext4/super.c | 30 ++++++++++++++++++++++++++++++ include/linux/fs.h | 1 + 5 files changed, 43 insertions(+), 20 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index b97a3b1..5ff4556 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -3049,6 +3049,16 @@ extern struct mutex ext4__aio_mutex[EXT4_WQ_HASH_SZ]; extern int ext4_resize_begin(struct super_block *sb); extern void ext4_resize_end(struct super_block *sb); +struct ext4_acl_ops { + int (*chmod)(struct inode *, umode_t); + int (*init_acl)(handle_t *, struct inode *, struct inode *); +}; + +static inline const struct ext4_acl_ops *ACL_OPS(struct inode *inode) +{ + return inode->i_sb->s_private; +} + #endif /* __KERNEL__ */ #endif /* _EXT4_H */ diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 9657b3a..e33646f 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -27,7 +27,6 @@ #include "ext4_jbd2.h" #include "xattr.h" #include "acl.h" -#include "richacl.h" #include @@ -698,14 +697,6 @@ out: return ret; } -static inline int -ext4_new_acl(handle_t *handle, struct inode *inode, struct inode *dir) -{ - if (IS_RICHACL(dir)) - return ext4_init_richacl(handle, inode, dir); - return ext4_init_acl(handle, inode, dir); -} - /* * There are two policies for allocating an inode. If the new inode is * a directory, then a forward search is made for a block group with both @@ -1061,7 +1052,7 @@ got: if (err) goto fail_drop; - err = ext4_new_acl(handle, inode, dir); + err = ACL_OPS(inode)->init_acl(handle, inode, dir); if (err) goto fail_free_drop; diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 647f3c3..9f179ee 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -42,7 +42,6 @@ #include "xattr.h" #include "acl.h" #include "truncate.h" -#include "richacl.h" #include @@ -4639,14 +4638,6 @@ static void ext4_wait_for_tail_page_commit(struct inode *inode) } } -static inline int -ext4_acl_chmod(struct inode *inode, umode_t mode) -{ - if (IS_RICHACL(inode)) - return richacl_chmod(inode, inode->i_mode); - return posix_acl_chmod(inode, inode->i_mode); -} - /* * ext4_setattr() * @@ -4815,7 +4806,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr) ext4_orphan_del(NULL, inode); if (!rc && (ia_valid & ATTR_MODE)) - rc = ext4_acl_chmod(inode, inode->i_mode); + rc = ACL_OPS(inode)->chmod(inode, inode->i_mode); err_out: ext4_std_error(inode->i_sb, error); if (!error) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 7457ea8..879bc2c 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -49,6 +49,7 @@ #include "ext4_jbd2.h" #include "xattr.h" #include "acl.h" +#include "richacl.h" #include "mballoc.h" #define CREATE_TRACE_POINTS @@ -1270,25 +1271,54 @@ static ext4_fsblk_t get_sb_block(void **data) return sb_block; } +static int no_chmod_acl(struct inode *inode, umode_t mode) +{ + return 0; +} + +static int no_init_acl(handle_t *handle, struct inode *inode, struct inode *dir) +{ + return 0; +} + +struct ext4_acl_ops no_acl_ops = { + .chmod = no_chmod_acl, + .init_acl = no_init_acl, +}; + +struct ext4_acl_ops ext4_posix_acl_ops = { + .chmod = posix_acl_chmod, + .init_acl = ext4_init_acl, +}; + +struct ext4_acl_ops ext4_richacl_ops = { + .chmod = richacl_chmod, + .init_acl = ext4_init_richacl, +}; + static int enable_acl(struct super_block *sb) { sb->s_flags &= ~(MS_POSIXACL | MS_RICHACL); + sb->s_private = &no_acl_ops; if (test_opt(sb, ACL)) { if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RICHACL)) { #ifdef CONFIG_EXT4_FS_RICHACL sb->s_flags |= MS_RICHACL; + sb->s_private = &ext4_richacl_ops; #else return -EOPNOTSUPP; #endif } else { #ifdef CONFIG_EXT4_FS_POSIX_ACL sb->s_flags |= MS_POSIXACL; + sb->s_private = &ext4_posix_acl_ops; #else return -EOPNOTSUPP; #endif } } + return 0; } diff --git a/include/linux/fs.h b/include/linux/fs.h index 05fb943..5803bf6 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1324,6 +1324,7 @@ struct super_block { void *s_security; #endif const struct xattr_handler **s_xattr; + const void *s_private; struct hlist_bl_head s_anon; /* anonymous dentries for (nfs) exporting */ struct list_head s_mounts; /* list of mounts; _not_ for fs use */ -- 2.5.0 From sandeen@sandeen.net Wed Nov 11 09:41:27 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5B2547F5A for ; Wed, 11 Nov 2015 09:41:27 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 23E498F8035 for ; Wed, 11 Nov 2015 07:41:26 -0800 (PST) X-ASG-Debug-ID: 1447256484-04bdf03f0211a510001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id tdmQVKE33vsYPBZe for ; Wed, 11 Nov 2015 07:41:24 -0800 (PST) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 67ED8612961A; Wed, 11 Nov 2015 09:41:24 -0600 (CST) Subject: Re: [PATCH] xfsprogs: fix cut & paste error in xfs_fsr.c To: Jan Tulak X-ASG-Orig-Subj: Re: [PATCH] xfsprogs: fix cut & paste error in xfs_fsr.c References: <56423596.3030300@redhat.com> <20151110202806.GG14311@dastard> <5642550C.4040603@redhat.com> Cc: xfs@oss.sgi.com From: Eric Sandeen Message-ID: <564361A1.8050502@sandeen.net> Date: Wed, 11 Nov 2015 09:41:21 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1447256484 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24305 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 11/11/15 7:13 AM, Jan Tulak wrote: > ​Hmmm, sorry about the mess... :-( I will look on the patch again > too. Speaking about Coverity, is there a way I can get to it and use > it myself? (Maybe it may be b​etter to continue this off list - from > what I heard, Coverity guys don't like to be talk about publicly...) > > Cheers, Jan So, we have xfsprogs & xfsdump in the upstream "Coverity Scan" project, which is free for open source projects. Nah, it's not secret, although access to the defect database is controlled, out of security concerns I guess - I sent you an invite. Thanks, -Eric From penguin-kernel@I-love.SAKURA.ne.jp Wed Nov 11 09:58:22 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 33C0D7F77 for ; Wed, 11 Nov 2015 09:58:22 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1FB288F8049 for ; Wed, 11 Nov 2015 07:58:21 -0800 (PST) X-ASG-Debug-ID: 1447257496-04cb6c296c11f360001-NocioJ Received: from www262.sakura.ne.jp (www262.sakura.ne.jp [202.181.97.72]) by cuda.sgi.com with ESMTP id ChCr4rzAkhtfTQc4 (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO) for ; Wed, 11 Nov 2015 07:58:17 -0800 (PST) X-Barracuda-Envelope-From: penguin-kernel@I-love.SAKURA.ne.jp X-Barracuda-Apparent-Source-IP: 202.181.97.72 Received: from fsav402.sakura.ne.jp (fsav402.sakura.ne.jp [133.242.250.101]) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id tABFw8Tc005589; Thu, 12 Nov 2015 00:58:09 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav402.sakura.ne.jp (F-Secure/fsigk_smtp/522/fsav402.sakura.ne.jp); Thu, 12 Nov 2015 00:58:08 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/522/fsav402.sakura.ne.jp) Received: from [192.168.1.8] (softbank126094077227.bbtec.net [126.94.77.227]) (authenticated bits=0) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id tABFw8PA005586 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 12 Nov 2015 00:58:08 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Subject: Re: memory reclaim problems on fs usage To: =?UTF-8?Q?Arkadiusz_Mi=c5=9bkiewicz?= , linux-mm@kvack.org, xfs@oss.sgi.com X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage References: <201511102313.36685.arekm@maven.pl> Newsgroups: gmane.linux.kernel.mm From: Tetsuo Handa Message-ID: <5643658B.9090206@I-love.SAKURA.ne.jp> Date: Thu, 12 Nov 2015 00:58:03 +0900 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <201511102313.36685.arekm@maven.pl> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Barracuda-Connect: www262.sakura.ne.jp[202.181.97.72] X-Barracuda-Start-Time: 1447257497 X-Barracuda-Encrypted: DHE-RSA-CAMELLIA256-SHA X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24305 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 2015/11/11 7:13, Arkadiusz Miśkiewicz wrote: > The usual (repeatable) problem is like this: > > full dmesg: http://sprunge.us/VEiE (more in it then in partial log below) Maybe somebody doing GFP_NOIO allocation which XFS driver doing GFP_NOFS allocation is waiting for is stalling inside memory allocator. I think that checking tasks which are stalling inside memory allocator would help. Please try reproducing this problem with a debug printk() patch shown below applied. This is a patch which I used for debugging silent lockup problem. When memory allocation got stuck, lines with MemAlloc keyword will be printed. --- fs/xfs/kmem.c | 10 ++- fs/xfs/xfs_buf.c | 3 +- include/linux/mmzone.h | 1 + include/linux/vmstat.h | 1 + mm/page_alloc.c | 217 +++++++++++++++++++++++++++++++++++++++++++++++++ mm/vmscan.c | 22 +++++ 6 files changed, 249 insertions(+), 5 deletions(-) diff --git a/fs/xfs/kmem.c b/fs/xfs/kmem.c index a7a3a63..535c136 100644 --- a/fs/xfs/kmem.c +++ b/fs/xfs/kmem.c @@ -55,8 +55,9 @@ kmem_alloc(size_t size, xfs_km_flags_t flags) return ptr; if (!(++retries % 100)) xfs_err(NULL, - "possible memory allocation deadlock in %s (mode:0x%x)", - __func__, lflags); + "%s(%u) possible memory allocation deadlock in %s (mode:0x%x)", + current->comm, current->pid, + __func__, lflags); congestion_wait(BLK_RW_ASYNC, HZ/50); } while (1); } @@ -120,8 +121,9 @@ kmem_zone_alloc(kmem_zone_t *zone, xfs_km_flags_t flags) return ptr; if (!(++retries % 100)) xfs_err(NULL, - "possible memory allocation deadlock in %s (mode:0x%x)", - __func__, lflags); + "%s(%u) possible memory allocation deadlock in %s (mode:0x%x)", + current->comm, current->pid, + __func__, lflags); congestion_wait(BLK_RW_ASYNC, HZ/50); } while (1); } diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 1790b00..16322cb 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -354,7 +354,8 @@ retry: */ if (!(++retries % 100)) xfs_err(NULL, - "possible memory allocation deadlock in %s (mode:0x%x)", + "%s(%u) possible memory allocation deadlock in %s (mode:0x%x)", + current->comm, current->pid, __func__, gfp_mask); XFS_STATS_INC(xb_page_retries); diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 54d74f6..932a6d6 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -527,6 +527,7 @@ struct zone { ZONE_PADDING(_pad3_) /* Zone statistics */ atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; + unsigned long stat_last_updated[NR_VM_ZONE_STAT_ITEMS]; } ____cacheline_internodealigned_in_smp; enum zone_flags { diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 82e7db7..2488925 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -115,6 +115,7 @@ static inline void zone_page_state_add(long x, struct zone *zone, { atomic_long_add(x, &zone->vm_stat[item]); atomic_long_add(x, &vm_stat[item]); + zone->stat_last_updated[item] = jiffies; } static inline unsigned long global_page_state(enum zone_stat_item item) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 18490f3..35a46b4 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -61,6 +61,8 @@ #include #include #include +#include +#include #include #include @@ -2496,6 +2498,8 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order, } #endif /* CONFIG_COMPACTION */ +pid_t dump_target_pid; + /* Perform direct synchronous page reclaim */ static int __perform_reclaim(gfp_t gfp_mask, unsigned int order, @@ -2645,6 +2649,208 @@ bool gfp_pfmemalloc_allowed(gfp_t gfp_mask) return !!(gfp_to_alloc_flags(gfp_mask) & ALLOC_NO_WATERMARKS); } +static unsigned long kmallocwd_timeout = 10 * HZ; /* Scan interval. */ +static u8 memalloc_counter_active_index; /* Either 0 or 1. */ +static int memalloc_counter[2]; /* Number of tasks doing memory allocation. */ + +struct memalloc { + struct list_head list; /* Connected to memalloc_list. */ + struct task_struct *task; /* Iniatilized to current. */ + unsigned long start; /* Initialized to jiffies. */ + unsigned int order; + gfp_t gfp; + u8 index; /* Initialized to memalloc_counter_active_index. */ + u8 dumped; +}; + +static LIST_HEAD(memalloc_list); /* List of "struct memalloc".*/ +static DEFINE_SPINLOCK(memalloc_list_lock); /* Lock for memalloc_list. */ + +/* + * kmallocwd - A kernel thread for monitoring memory allocation stalls. + * + * @unused: Not used. + * + * This kernel thread does not terminate. + */ +static int kmallocwd(void *unused) +{ + struct memalloc *m; + struct task_struct *g, *p; + unsigned long now; + unsigned int sigkill_pending; + unsigned int memdie_pending; + unsigned int stalling_tasks; + u8 index; + pid_t pid; + + not_stalling: /* Healty case. */ + /* Switch active counter and wait for timeout duration. */ + index = memalloc_counter_active_index; + spin_lock(&memalloc_list_lock); + memalloc_counter_active_index ^= 1; + spin_unlock(&memalloc_list_lock); + schedule_timeout_interruptible(kmallocwd_timeout); + /* + * If memory allocations are working, the counter should remain 0 + * because tasks will be able to call both start_memalloc_timer() + * and stop_memalloc_timer() within timeout duration. + */ + if (likely(!memalloc_counter[index])) + goto not_stalling; + maybe_stalling: /* Maybe something is wrong. Let's check. */ + now = jiffies; + /* Count stalling tasks, dying and victim tasks. */ + sigkill_pending = 0; + memdie_pending = 0; + stalling_tasks = 0; + pid = 0; + spin_lock(&memalloc_list_lock); + list_for_each_entry(m, &memalloc_list, list) { + if (time_after(now - m->start, kmallocwd_timeout)) + stalling_tasks++; + } + spin_unlock(&memalloc_list_lock); + preempt_disable(); + rcu_read_lock(); + for_each_process_thread(g, p) { + if (test_tsk_thread_flag(p, TIF_MEMDIE)) + memdie_pending++; + if (fatal_signal_pending(p)) + sigkill_pending++; + } + rcu_read_unlock(); + preempt_enable(); + cond_resched(); + pr_warn("MemAlloc-Info: %u stalling task, %u dying task, %u victim task.\n", + stalling_tasks, sigkill_pending, memdie_pending); + /* Report stalling tasks, dying and victim tasks. */ + spin_lock(&memalloc_list_lock); + list_for_each_entry(m, &memalloc_list, list) { + if (time_before(now - m->start, kmallocwd_timeout)) + continue; + p = m->task; + pr_warn("MemAlloc: %s(%u) gfp=0x%x order=%u delay=%lu\n", + p->comm, p->pid, m->gfp, m->order, now - m->start); + } + spin_unlock(&memalloc_list_lock); + preempt_disable(); + rcu_read_lock(); + for_each_process_thread(g, p) { + u8 type = 0; + + if (test_tsk_thread_flag(p, TIF_MEMDIE)) + type |= 1; + if (fatal_signal_pending(p)) + type |= 2; + if (likely(!type)) + continue; + if (p->state & TASK_UNINTERRUPTIBLE) + type |= 4; + pr_warn("MemAlloc: %s(%u)%s%s%s\n", p->comm, p->pid, + (type & 4) ? " uninterruptible" : "", + (type & 2) ? " dying" : "", + (type & 1) ? " victim" : ""); + } + rcu_read_unlock(); + preempt_enable(); + cond_resched(); + /* + * Show traces of newly reported (or too long) stalling tasks. + * + * Show traces only once per 256 timeouts because their traces + * will likely be the same (e.g. cond_sched() or congestion_wait()) + * when they are stalling inside __alloc_pages_slowpath(). + */ + spin_lock(&memalloc_list_lock); + list_for_each_entry(m, &memalloc_list, list) { + if (time_before(now - m->start, kmallocwd_timeout) || + m->dumped++) + continue; + p = m->task; + sched_show_task(p); + debug_show_held_locks(p); + touch_nmi_watchdog(); + if (!pid) + pid = p->pid; + } + spin_unlock(&memalloc_list_lock); + /* + * Show traces of dying tasks (including victim tasks). + * + * Only dying tasks which are in trouble (e.g. blocked at unkillable + * locks held by memory allocating tasks) will be repeatedly shown. + * Therefore, we need to pay attention to tasks repeatedly shown here. + */ + preempt_disable(); + rcu_read_lock(); + for_each_process_thread(g, p) { + if (likely(!fatal_signal_pending(p))) + continue; + sched_show_task(p); + debug_show_held_locks(p); + touch_nmi_watchdog(); + } + rcu_read_unlock(); + preempt_enable(); + show_workqueue_state(); + if (!dump_target_pid) + dump_target_pid = -pid; + /* Wait until next timeout duration. */ + schedule_timeout_interruptible(kmallocwd_timeout); + if (memalloc_counter[index]) + goto maybe_stalling; + goto not_stalling; + return 0; /* To suppress "no return statement" compiler warning. */ +} + +static int __init start_kmallocwd(void) +{ + if (kmallocwd_timeout) { + struct task_struct *task = kthread_run(kmallocwd, NULL, + "kmallocwd"); + BUG_ON(IS_ERR(task)); + } + return 0; +} +late_initcall(start_kmallocwd); + +static int __init kmallocwd_config(char *str) +{ + if (kstrtoul(str, 10, &kmallocwd_timeout) == 0) + kmallocwd_timeout = min(kmallocwd_timeout * HZ, + (unsigned long) LONG_MAX); + return 0; +} +__setup("kmallocwd=", kmallocwd_config); + +static void start_memalloc_timer(struct memalloc *m, const gfp_t gfp_mask, + const int order) +{ + if (!kmallocwd_timeout || m->task) + return; + m->task = current; + m->start = jiffies; + m->gfp = gfp_mask; + m->order = order; + m->dumped = 0; + spin_lock(&memalloc_list_lock); + m->index = memalloc_counter_active_index; + memalloc_counter[m->index]++; + list_add_tail(&m->list, &memalloc_list); + spin_unlock(&memalloc_list_lock); +} + +static void stop_memalloc_timer(struct memalloc *m) +{ + if (!m->task) + return; + spin_lock(&memalloc_list_lock); + memalloc_counter[m->index]--; + list_del(&m->list); + spin_unlock(&memalloc_list_lock); +} + static inline struct page * __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, struct alloc_context *ac) @@ -2657,6 +2863,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, enum migrate_mode migration_mode = MIGRATE_ASYNC; bool deferred_compaction = false; int contended_compaction = COMPACT_CONTENDED_NONE; + struct memalloc m = { .task = NULL }; /* * In the slowpath, we sanity check order to avoid ever trying to @@ -2678,6 +2885,9 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, goto nopage; retry: + if (dump_target_pid == -current->pid) + dump_target_pid = -dump_target_pid; + if (!(gfp_mask & __GFP_NO_KSWAPD)) wake_all_kswapds(order, ac); @@ -2740,6 +2950,8 @@ retry: if (test_thread_flag(TIF_MEMDIE) && !(gfp_mask & __GFP_NOFAIL)) goto nopage; + start_memalloc_timer(&m, gfp_mask, order); + /* * Try direct compaction. The first pass is asynchronous. Subsequent * attempts after direct reclaim are synchronous @@ -2798,6 +3010,10 @@ retry: goto got_pg; /* Check if we should retry the allocation */ + if (dump_target_pid == current->pid) { + printk(KERN_INFO "did_some_progress=%lu\n", did_some_progress); + dump_target_pid = 0; + } pages_reclaimed += did_some_progress; if (should_alloc_retry(gfp_mask, order, did_some_progress, pages_reclaimed)) { @@ -2834,6 +3050,7 @@ retry: nopage: warn_alloc_failed(gfp_mask, order, NULL); got_pg: + stop_memalloc_timer(&m); return page; } diff --git a/mm/vmscan.c b/mm/vmscan.c index 1a17bd7..c449371 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2432,6 +2432,8 @@ static inline bool compaction_ready(struct zone *zone, int order) return watermark_ok; } +extern pid_t dump_target_pid; + /* * This is the direct reclaim path, for page-allocating processes. We only * try to reclaim pages from zones which will satisfy the caller's allocation @@ -2533,7 +2535,27 @@ static bool shrink_zones(struct zonelist *zonelist, struct scan_control *sc) if (global_reclaim(sc) && !reclaimable && zone_reclaimable(zone)) + { + if (dump_target_pid == current->pid) { + unsigned long rec = zone_reclaimable_pages(zone); + unsigned long free = zone_page_state(zone, NR_FREE_PAGES); + unsigned long min = min_wmark_pages(zone); + unsigned long scanned = zone_page_state(zone, NR_PAGES_SCANNED); + unsigned long now = jiffies; + unsigned long rec2 = zone_page_state_snapshot(zone, NR_ACTIVE_FILE) + + zone_page_state_snapshot(zone, NR_INACTIVE_FILE); + unsigned long free2 = zone_page_state_snapshot(zone, NR_FREE_PAGES); + unsigned long scanned2 = zone_page_state_snapshot(zone, NR_PAGES_SCANNED); + + printk(KERN_INFO "%s zone_reclaimable: reclaim:%lu(%lu,%lu,%ld) free:%lu(%lu,%ld) min:%lu pages_scanned:%lu(%lu,%ld) prio:%d\n", + zone->name, rec, now - zone->stat_last_updated[NR_ACTIVE_FILE], + now - zone->stat_last_updated[NR_INACTIVE_FILE], rec - rec2, + free, now - zone->stat_last_updated[NR_FREE_PAGES], free - free2, + min, scanned, now - zone->stat_last_updated[NR_PAGES_SCANNED], + scanned - scanned2, sc->priority); + } reclaimable = true; + } } /* -- 1.8.3.1 From arekm@maven.pl Wed Nov 11 10:19:58 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 5C83C7F80 for ; Wed, 11 Nov 2015 10:19:58 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 4AA5B304032 for ; Wed, 11 Nov 2015 08:19:55 -0800 (PST) X-ASG-Debug-ID: 1447258787-04cb6c296a120420001-NocioJ Received: from mail-lb0-f177.google.com (mail-lb0-f177.google.com [209.85.217.177]) by cuda.sgi.com with ESMTP id 6FMJMRH4tgiRhFjA (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 11 Nov 2015 08:19:48 -0800 (PST) X-Barracuda-Envelope-From: arekm@maven.pl X-Barracuda-Apparent-Source-IP: 209.85.217.177 Received: by lbbkw15 with SMTP id kw15so19645836lbb.0 for ; Wed, 11 Nov 2015 08:19:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maven.pl; s=maven; h=from:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; bh=5Dk7Mhf7CIVcwpAC672GQ3bcRhzWv/re5bdfNWlsbRY=; b=Ds4YmlqjSp5koGe+AJ/yVDXaRuz4Xbay52NDfsMxqELUfhskVjW2mGmMpefTx8sc6K ViTigYaIRGdvNqOwYrRjbZIDDMHBVAHCowtkeuOZJ5xMnI6ttaNYozsb+ghMgd1AKtCc QClhAUQ+OmBW7oez3jdCbKZ6sqWyYDqmprA4E= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:user-agent:cc:references :in-reply-to:mime-version:content-type:content-transfer-encoding :message-id; bh=5Dk7Mhf7CIVcwpAC672GQ3bcRhzWv/re5bdfNWlsbRY=; b=SstG/UtagGNwKX3neR9J1RVovuKCUviqRjl0GRmNw0T6XZTXKpM/nGUE3RwEJCtWGY AKsVTJbNNcGgKPLEEN2LIkCBU72SqovRjvqvlKEz8+aFePBDz1nfNyf0m/5NlOb8yxg2 viIzNZ3NsQ8Dph7tWk1nyv9gthK1grjsZQhdP+0kB14UL3vivDDWPGeMoPAYQIVBfNmQ X6h1aJ8cQyo0mmzeFanqbn02HGP6aNW2mbzuojvRtWtP0WJSVD6X7CmpVQKMmBc0jB3c Gmi4RanYv8nOvA/SCQSo0EBvqyI7DNohoddw+FJol4PPfTqm//FkTGEJnKG1ZibmhbIq w39g== X-Gm-Message-State: ALoCoQlp+L2Q7vgKwT9s8PYvujB3Gkf5tleMikB0cHBPooscazPv7tWW+Z4gfuW2E8RIuyxvYnMN X-Received: by 10.112.180.131 with SMTP id do3mr4847377lbc.123.1447258786591; Wed, 11 Nov 2015 08:19:46 -0800 (PST) Received: from xps.localnet (85-222-71-204.dynamic.chello.pl. [85.222.71.204]) by smtp.gmail.com with ESMTPSA id l8sm1564264lbj.7.2015.11.11.08.19.45 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 11 Nov 2015 08:19:45 -0800 (PST) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= To: Tetsuo Handa Subject: Re: memory reclaim problems on fs usage Date: Wed, 11 Nov 2015 17:19:42 +0100 X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage User-Agent: KMail/1.13.7 (Linux/4.3.0; KDE/4.14.13; x86_64; ; ) Cc: linux-mm@kvack.org, xfs@oss.sgi.com References: <201511102313.36685.arekm@maven.pl> <5643658B.9090206@I-love.SAKURA.ne.jp> In-Reply-To: <5643658B.9090206@I-love.SAKURA.ne.jp> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201511111719.44035.arekm@maven.pl> X-Barracuda-Connect: mail-lb0-f177.google.com[209.85.217.177] X-Barracuda-Start-Time: 1447258787 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24305 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Wednesday 11 of November 2015, Tetsuo Handa wrote: > On 2015/11/11 7:13, Arkadiusz Mi=C5=9Bkiewicz wrote: > > The usual (repeatable) problem is like this: > >=20 > > full dmesg: http://sprunge.us/VEiE (more in it then in partial log belo= w) >=20 > Maybe somebody doing GFP_NOIO allocation which XFS driver doing GFP_NOFS > allocation is waiting for is stalling inside memory allocator. I think th= at > checking tasks which are stalling inside memory allocator would help. >=20 > Please try reproducing this problem with a debug printk() patch shown bel= ow > applied. This is a patch which I used for debugging silent lockup problem. > When memory allocation got stuck, lines with MemAlloc keyword will be > printed. >=20 > --- > fs/xfs/kmem.c | 10 ++- > fs/xfs/xfs_buf.c | 3 +- > include/linux/mmzone.h | 1 + > include/linux/vmstat.h | 1 + > mm/page_alloc.c | 217 > +++++++++++++++++++++++++++++++++++++++++++++++++ mm/vmscan.c | > 22 +++++ > 6 files changed, 249 insertions(+), 5 deletions(-) This patch is against which tree? (tried 4.1, 4.2 and 4.3) =2D-=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / ( maven.pl | pld-linux.org ) From darrick.wong@oracle.com Wed Nov 11 12:55:45 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 523DF7F54 for ; Wed, 11 Nov 2015 12:55:45 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 117CF30404E for ; Wed, 11 Nov 2015 10:55:44 -0800 (PST) X-ASG-Debug-ID: 1447268139-04bdf03f051208e0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id b9NkDQChxnt5UlOf (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 10:55:39 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABItEk5021267 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 18:55:15 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABItEJZ000568 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 18:55:14 GMT Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABItBWN030475; Wed, 11 Nov 2015 18:55:13 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 10:55:11 -0800 Date: Wed, 11 Nov 2015 10:55:10 -0800 From: "Darrick J. Wong" To: david@fromorbit.com, hch@infradead.org Cc: linux-fsdevel , xfs Subject: RFCv3+ WIP rollup of XFS reverse-mapping, reflink, and dedupe support Message-ID: <20151111185510.GC2224@birch.djwong.org> X-ASG-Orig-Subj: RFCv3+ WIP rollup of XFS reverse-mapping, reflink, and dedupe support MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447268139 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Hi all, Today I've uploaded the latest WIP patches for XFS reverse mapping, reflink, and dedupe support to github: https://github.com/djwong/linux/tree/for-dave https://github.com/djwong/xfsprogs/tree/for-dave https://github.com/djwong/xfstests/tree/for-dave https://github.com/djwong/xfs-documentation/tree/for-dave I've cleaned things up so now you can pull the for-dave branch in any of the four repositories. I updated the XFS on-disk format documentation to fix numerous omissions in the second edition and to reflect v5 XFS and the rmap/reflink additions to the filesystem. Since RFCv3, I restructured how bmbt updates get reflected in the rmapbt -- now they're deferred until xfs_bmap_finish time, so that the rmap btree updates obey AG locking order rules to avoid deadlocks. I also fixed numerous minor bookkeeping bugs in the rmapbt and refcountbt code. Lastly, I pulled in Anna Schumaker and Peng Tao's patches hoisting the reflink ioctls into the VFS, added patches to do the same with the dedupe ioctl, and wired up XFS to both of the new VFS operations. The tests have been reworked (I hope) to play more nicely with NFS reflink -- now we simply test the xfs_io reflink or dedupe commands on the test or scratch FS to decide if we're going to run the test, instead of inferring it from FS type. The fiemap checks are gone, replaced with umount, mount, and verifying file contents. xfsprogs hasn't changed much, other than porting kernel-side changes. I will post the xfstests and xfs-documentation patches on the list shortly. I'm holding off on reposting the kernel and xfsprogs patches because I'm still working on fixing CoW and don't really want to blast the mailing lists again until I'm done with that. --D From darrick.wong@oracle.com Wed Nov 11 13:22:51 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0CD387F5F for ; Wed, 11 Nov 2015 13:22:51 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id DEBDD304032 for ; Wed, 11 Nov 2015 11:22:47 -0800 (PST) X-ASG-Debug-ID: 1447269766-04cb6c296d124fa0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id LQARVjRN6Ha4YYmv (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:22:46 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJML5D024565 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:22:21 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMLjf028376 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:22:21 GMT Received: from abhmp0012.oracle.com (abhmp0012.oracle.com [141.146.116.18]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMKQB012603; Wed, 11 Nov 2015 19:22:20 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:22:20 -0800 Subject: [RFCv3.1 00/21] xfs-documentation: massive cleanups and add v5 format, reverse-mapping, reflink, and dedupe support From: "Darrick J. Wong" X-ASG-Orig-Subj: [RFCv3.1 00/21] xfs-documentation: massive cleanups and add v5 format, reverse-mapping, reflink, and dedupe support To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:22:19 -0800 Message-ID: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447269766 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_SA210e, UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines 0.00 BSF_SC5_SA210e Custom Rule SA210e Hi all, This is part of the third revision of an RFC for adding support to XFS for tracking reverse-mappings of physical blocks to file and metadata; and support for mapping multiple file logical blocks to the same physical block, more commonly known as reflinking. This is the first time I've posted patches against the documentation, but they fit with the pending RFCv3 code patches, so they're now a part of the full suite. This patch set does the following: * Cleans up leftover artifacts of the XML -> asciidoc conversion. * Fixes the formatting of quoted text and structure field definitions. * Fixes a lot of the strange wording in the existing documentation. * Replaces the screen dump PNGs with (much smaller) text sections. There's a huge 1.2MB patch to remove the image files as well, but I'll probably just send that privately to Dave later on. * Fills in the missing xfs_db examples and structure field definitions. * Fills in the missing realtime and journal sections. * Covers the new header formats for v5 filesystems. * Adds a magic number index. * Adds a brief overview of what is XFS, prior to jumping into the disk format. * Covers sparse inodes, reverse mapping btrees, reference count btrees and reflink. * Switches the xattr and directory chapters since the directory chapter introduces the btrees that xattrs can use. The patch set is based on the current master branch. As specified eleswhere, I have git trees for the kernel[1], xfsprogs[2], xfstests[3], and xfs-docs[4]. Comments and questions are, as always, welcome. --D [1] https://github.com/djwong/linux/tree/for-dave [2] https://github.com/djwong/xfsprogs/tree/for-dave [3] https://github.com/djwong/xfstests/tree/for-dave [4] https://github.com/djwong/xfs-documentation/tree/for-dave From darrick.wong@oracle.com Wed Nov 11 13:23:00 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 184277F6A for ; Wed, 11 Nov 2015 13:23:00 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id EE3C38F8033 for ; Wed, 11 Nov 2015 11:22:56 -0800 (PST) X-ASG-Debug-ID: 1447269770-04bdf03f02121250001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id gstlzc6Ev3wjzegx (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:22:50 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJMR0J024699 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:22:27 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMRPE020707 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:22:27 GMT Received: from abhmp0007.oracle.com (abhmp0007.oracle.com [141.146.116.13]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMQdU012652; Wed, 11 Nov 2015 19:22:26 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:22:26 -0800 Subject: [PATCH 01/21] xfsdocs: fix asciidoc confusion w.r.t. include file newline at EOF From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 01/21] xfsdocs: fix asciidoc confusion w.r.t. include file newline at EOF To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:22:25 -0800 Message-ID: <20151111192225.14235.36980.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447269770 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Space each include one line apart so that asciidoc knows that each section has ended at included file's EOF. This prevents it from spewing horribly confused XML that blows up xmllint if each included file doesn't itself end with a blank line. Signed-off-by: Darrick J. Wong --- .../xfs_filesystem_structure.asciidoc | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc index 226bb25..560e549 100644 --- a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc +++ b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc @@ -36,18 +36,28 @@ Global Structures ================= :leveloffset: 1 + include::allocation_groups.asciidoc[] + include::journaling_log.asciidoc[] + include::internal_inodes.asciidoc[] + :leveloffset: 0 Dynamically Allocated Structures ================================ :leveloffset: 1 + include::ondisk_inode.asciidoc[] + include::data_extents.asciidoc[] + include::extended_attributes.asciidoc[] + include::directories.asciidoc[] + include::symbolic_links.asciidoc[] + :leveloffset: 0 From darrick.wong@oracle.com Wed Nov 11 13:23:06 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4E9457F5F for ; Wed, 11 Nov 2015 13:23:06 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3FF358F8035 for ; Wed, 11 Nov 2015 11:23:06 -0800 (PST) X-ASG-Debug-ID: 1447269778-04cb6c296d124fd0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id mhixg7N0q02FQSsR (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:23:00 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJMXGA023596 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:22:33 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMXGK016002 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:22:33 GMT Received: from abhmp0004.oracle.com (abhmp0004.oracle.com [141.146.116.10]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMXST013736; Wed, 11 Nov 2015 19:22:33 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:22:32 -0800 Subject: [PATCH 02/21] xfsdocs: update book subtitles and headings From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 02/21] xfsdocs: update book subtitles and headings To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:22:31 -0800 Message-ID: <20151111192231.14235.80898.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447269779 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines The current subtitle is redundant and since this is the third edition (the second ed. came out in 2006) we might as well note that. Update some of the headings to make it clear that we're talking about disk format and not much else. Signed-off-by: Darrick J. Wong --- design/XFS_Filesystem_Structure/docinfo.xml | 2 +- .../xfs_filesystem_structure.asciidoc | 8 ++++---- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/design/XFS_Filesystem_Structure/docinfo.xml b/design/XFS_Filesystem_Structure/docinfo.xml index d56aaed..cb5ffe7 100644 --- a/design/XFS_Filesystem_Structure/docinfo.xml +++ b/design/XFS_Filesystem_Structure/docinfo.xml @@ -1,4 +1,4 @@ -Documentation of the XFS filesystem on-disk structures +3rd Edition This book documents the XFS Filesystem Structure diff --git a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc index 560e549..a78f3b9 100644 --- a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc +++ b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc @@ -6,13 +6,13 @@ // and we really need an area to set up various docbook sections like copyright // and legal notice sections. // -XFS Filesystem Structure -======================== +XFS Filesystem Disk Structures +============================== :doctype: book :docinfo1: -Introduction -============ +High Level Design +================= [partintro] -- From darrick.wong@oracle.com Wed Nov 11 13:23:10 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0AAEC7F78 for ; Wed, 11 Nov 2015 13:23:10 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id A5D2F8F8035 for ; Wed, 11 Nov 2015 11:23:09 -0800 (PST) X-ASG-Debug-ID: 1447269781-04bdf03f03121270001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id Wsf33AhLyf4rJpZi (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:23:02 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJMdCb024844 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:22:40 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMdVv029070 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:22:39 GMT Received: from abhmp0003.oracle.com (abhmp0003.oracle.com [141.146.116.9]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMd91032243; Wed, 11 Nov 2015 19:22:39 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:22:39 -0800 Subject: [PATCH 03/21] xfsdocs: restore the old rendering of structure field definitions From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 03/21] xfsdocs: restore the old rendering of structure field definitions To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:22:38 -0800 Message-ID: <20151111192238.14235.56734.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447269782 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Restore the rendering of the on-disk struct fields to resemble that of the old SGI book, with bold field names on one line and the description indented below. This is a lot more readable than letting the whole field and description run together as one long line. Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 136 ++++++++++---------- .../XFS_Filesystem_Structure/common_types.asciidoc | 28 ++-- .../internal_inodes.asciidoc | 38 +++--- .../XFS_Filesystem_Structure/ondisk_inode.asciidoc | 50 ++++--- 4 files changed, 126 insertions(+), 126 deletions(-) diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index a3721c2..afbbb67 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -92,59 +92,59 @@ struct xfs_sb __uint32_t sb_features2; }; ---- -.sb_magicnum +*sb_magicnum*:: Identifies the filesystem. It's value is +XFS_SB_MAGIC = 0x58465342 "XFSB"+. -.sb_blocksize +*sb_blocksize*:: The size of a basic unit of space allocation in bytes. Typically, this is 4096 (4KB) but can range from 512 to 65536 bytes. -.sb_dblocks +*sb_dblocks*:: Total number of blocks available for data and metadata on the filesystem. -.sb_rblocks +*sb_rblocks*:: Number blocks in the real-time disk device. Refer to xref:Real-time_Devices[real-time sub-volumes] for more information. -.sb_rextents +*sb_rextents*:: Number of extents on the real-time device. -.sb_uuid +*sb_uuid*:: UUID (Universally Unique ID) for the filesystem. Filesystems can be mounted by the UUID instead of device name. -.sb_logstart +*sb_logstart*:: First block number for the journaling log if the log is internal (ie. not on a separate disk device). For an external log device, this will be zero (the log will also start on the first block on the log device). -.sb_rootino +*sb_rootino*:: Root inode number for the filesystem. Typically, this is 128 when using a 4KB block size. -.sb_rbmino +*sb_rbmino*:: Bitmap inode for real-time extents. -.sb_rsumino +*sb_rsumino*:: Summary inode for real-time bitmap. -.sb_rextsize +*sb_rextsize*:: Realtime extent size in blocks. -.sb_agblocks +*sb_agblocks*:: Size of each AG in blocks. For the actual size of the last AG, refer to the xref:AG_Free_Space_Management[free space] +agf_length+ value. -.sb_agcount +*sb_agcount*:: Number of AGs in the filesystem. -.sb_rbmblocks +*sb_rbmblocks*:: Number of real-time bitmap blocks. -.sb_logblocks +*sb_logblocks*:: Number of blocks for the journaling log. -.sb_versionnum +*sb_versionnum*:: Filesystem version number. This is a bitmask specifying the features enabled when creating the filesystem. Any disk checking tools or drivers that do not recognize any set bits must not operate upon the filesystem. Most of the flagsi @@ -174,72 +174,72 @@ Version 2 directories are used. This is always set. Set if the sb_features2 field in the superblock contains more flags. |===== -.sb_sectsize +*sb_sectsize*:: Specifies the underlying disk sector size in bytes. Majority of the time, this is 512 bytes. This determines the minimum I/O alignment including Direct I/O. -.sb_inodesize +*sb_inodesize*:: Size of the inode in bytes. The default is 256 (2 inodes per standard sector) but can be made as large as 2048 bytes when creating the filesystem. -.sb_inopblock +*sb_inopblock*:: Number of inodes per block. This is equivalent to +sb_blocksize / sb_inodesize+. -.sb_fname[12] +*sb_fname[12]*:: Name for the filesystem. This value can be used in the mount command. -.sb_blocklog +*sb_blocklog*:: log~2~ value of +sb_blocksize+. In other terms, +sb_blocksize = 2^sb_blocklog^+. -.sb_sectlog +*sb_sectlog*:: log~2~ value of +sb_sectsize+. -.sb_inodelog +*sb_inodelog*:: log~2~ value of +sb_inodesize+. -.sb_inopblog +*sb_inopblog*:: log~2~ value of +sb_inopblock+. -.sb_agblklog +*sb_agblklog*:: log~2~ value of +sb_agblocks+ (rounded up). This value is used to generate inode numbers and absolute block numbers defined in extent maps. -.sb_rextslog +*sb_rextslog*:: log~2~ value of +sb_rextents+. -.sb_inprogress +*sb_inprogress*:: Flag specifying that the filesystem is being created. -.sb_imax_pct +*sb_imax_pct*:: Maximum percentage of filesystem space that can be used for inodes. The default value is 5%. -.sb_icount +*sb_icount*:: Global count for number inodes allocated on the filesystem. This is only maintained in the first superblock. -.sb_ifree +*sb_ifree*:: Global count of free inodes on the filesystem. This is only maintained in the first superblock. -.sb_fdblocks +*sb_fdblocks*:: Global count of free data blocks on the filesystem. This is only maintained in the first superblock. -.sb_frextents +*sb_frextents*:: Global count of free real-time extents on the filesystem. This is only maintained in the first superblock. -.sb_uquotino +*sb_uquotino*:: Inode for user quotas. This and the following two quota fields only apply if +XFS_SB_VERSION_QUOTABIT+ flag is set in +sb_versionnum+. Refer to xref:Quota_Inodes[quota inodes] for more information -.sb_gquotino +*sb_gquotino*:: Inode for group or project quotas. Group and Project quotas cannot be used at the same time. -.sb_qflags +*sb_qflags*:: Quota flags. It can be a combination of the following flags: .Superblock quota flags @@ -255,37 +255,37 @@ Quota flags. It can be a combination of the following flags: | +XFS_GQUOTA_ACCT+ | Group quota accounting is enabled. |===== -.sb_flags +*sb_flags*:: Miscellaneous flags. -.sb_shared_vn +*sb_shared_vn*:: Reserved and must be zero ("vn" stands for version number). -.sb_inoalignmt +*sb_inoalignmt*:: Inode chunk alignment in fsblocks. -.sb_unit +*sb_unit*:: Underlying stripe or raid unit in blocks. -.sb_width +*sb_width*:: Underlying stripe or raid width in blocks. -.sb_dirblklog +*sb_dirblklog*:: log~2~ multiplier that determines the granularity of directory block allocations in fsblocks. -.sb_logsectlog +*sb_logsectlog*:: log~2~ value of the log subvolume's sector size. This is only used if the journaling log is on a separate disk device (i.e. not internal). -.sb_logsectsize +*sb_logsectsize*:: The log's sector size in bytes if the filesystem uses an external log device. -.sb_logsunit +*sb_logsunit*:: The log device's stripe or raid unit size. This only applies to version 2 logs +XFS_SB_VERSION_LOGV2BIT+ is set in +sb_versionnum+. -.sb_features2 +*sb_features2*:: Additional version flags if +XFS_SB_VERSION_MOREBITSBIT+ is set in +sb_versionnum+. The currently defined additional features include: @@ -417,45 +417,45 @@ struct xfs_agf { The rest of the bytes in the sector are zeroed. +XFS_BTNUM_AGF+ is set to 2, index 0 for the count B+tree and index 1 for the size B+tree. -.agf_magicnum +*agf_magicnum*:: Specifies the magic number for the AGF sector: "XAGF" (0x58414746). -.agf_versionnum +*agf_versionnum*:: Set to +XFS_AGF_VERSION+ which is currently 1. -.agf_seqno +*agf_seqno*:: Specifies the AG number for the sector. -.agf_length +*agf_length*:: Specifies the size of the AG in filesystem blocks. For all AGs except the last, This must be equal to the superblock's +sb_agblocks+ value. For the last AG, this could be less than the +sb_agblocks+ value. It is this value that should be used to determine the size of the AG. -.agf_roots +*agf_roots*:: Specifies the block number for the root of the two free space B+trees. -.agf_levels +*agf_levels*:: Specifies the level or depth of the two free space B+trees. For a fresh AG, this will be one, and the "roots" will point to a single leaf of level 0. -.agf_flfirst +*agf_flfirst*:: Specifies the index of the first "free list" block. Free lists are covered in more detail later on. -.agf_fllast +*agf_fllast*:: Specifies the index of the last "free list" block. -.agf_flcount +*agf_flcount*:: Specifies the number of blocks in the "free list". -.agf_freeblks +*agf_freeblks*:: Specifies the current number of free blocks in the AG. -.agf_longest +*agf_longest*:: Specifies the number of blocks of longest contiguous free space in the AG. -.agf_btreeblks +*agf_btreeblks*:: Specifies the number of blocks used for the free space B+trees. This is only used if the +XFS_SB_VERSION2_LAZYSBCOUNTBIT+ bit is set in +sb_features2+. @@ -688,37 +688,37 @@ struct xfs_agi { __be32 agi_unlinked[64]; } ---- -.agi_magicnum +*agi_magicnum*:: Specifies the magic number for the AGI sector: "XAGI" (0x58414749). -.agi_versionnum +*agi_versionnum*:: Set to +XFS_AGI_VERSION+ which is currently 1. -.agi_seqno +*agi_seqno*:: Specifies the AG number for the sector. -.agi_length +*agi_length*:: Specifies the size of the AG in filesystem blocks. -.agi_count +*agi_count*:: Specifies the number of inodes allocated for the AG. -.agi_root +*agi_root*:: Specifies the block number in the AG containing the root of the inode B+tree. -.agi_level +*agi_level*:: Specifies the number of levels in the inode B+tree. -.agi_freecount +*agi_freecount*:: Specifies the number of free inodes in the AG. -.agi_newino +*agi_newino*:: Specifies AG relative inode number most recently allocated. -.agi_dirino +*agi_dirino*:: Deprecated and not used, it's always set to NULL (-1). -.agi_unlinked[64] +*agi_unlinked[64]*:: Hash table of unlinked (deleted) inodes that are still being referenced. Refer to xref:Unlinked_Pointer[unlinked list pointers] for more information. diff --git a/design/XFS_Filesystem_Structure/common_types.asciidoc b/design/XFS_Filesystem_Structure/common_types.asciidoc index 5b52271..ea2d21f 100644 --- a/design/XFS_Filesystem_Structure/common_types.asciidoc +++ b/design/XFS_Filesystem_Structure/common_types.asciidoc @@ -3,47 +3,47 @@ All the following XFS types can be found in xfs_types.h. NULL values are always -1 on disk (ie. all bits for the value set to one). -.xfs_ino_t +*xfs_ino_t*:: Unsigned 64 bit absolute xref:Inode_Numbers[inode number]. -.xfs_off_t +*xfs_off_t*:: Signed 64 bit file offset. -.xfs_daddr_t +*xfs_daddr_t*:: Signed 64 bit disk address. -.xfs_agnumber_t +*xfs_agnumber_t*:: Unsigned 32 bit xref:Allocation_Groups[AG number]. -.xfs_agblock_t +*xfs_agblock_t*:: Unsigned 32 bit AG relative block number. -.xfs_extlen_t +*xfs_extlen_t*:: Unsigned 32 bit xref:Data_Extents[extent] length in blocks. -.xfs_extnum_t +*xfs_extnum_t*:: Signed 32 bit number of extents in a file. -.xfs_dablk_t +*xfs_dablk_t*:: Unsigned 32 bit block number for xref:Directories[directories] and xref:Extended_Attributes[extended attributes]. -.xfs_dahash_t +*xfs_dahash_t*:: Unsigned 32 bit hash of a directory file name or extended attribute name. -.xfs_dfsbno_t +*xfs_dfsbno_t*:: Unsigned 64 bit filesystem block number combining xref:Allocation_Groups[AG number] and block offset into the AG. -.xfs_drfsbno_t +*xfs_drfsbno_t*:: Unsigned 64 bit raw filesystem block number. -.xfs_drtbno_t +*xfs_drtbno_t*:: Unsigned 64 bit extent number in the xref:Real-time_Devices[real-time] sub-volume. -.xfs_dfiloff_t +*xfs_dfiloff_t*:: Unsigned 64 bit block offset into a file. -.xfs_dfilblks_t +*xfs_dfilblks_t*:: Unsigned 64 bit block count for a file. diff --git a/design/XFS_Filesystem_Structure/internal_inodes.asciidoc b/design/XFS_Filesystem_Structure/internal_inodes.asciidoc index c3a3510..b69bea2 100644 --- a/design/XFS_Filesystem_Structure/internal_inodes.asciidoc +++ b/design/XFS_Filesystem_Structure/internal_inodes.asciidoc @@ -62,14 +62,14 @@ struct xfs_dqblk { }; ---- -.d_magic +*d_magic*:: Specifies the signature where these two bytes are 0x4451 (+XFS_DQUOT_MAGIC+), or "DQ" in ASCII. -.d_version +*d_version*:: Specifies the structure version, currently this is one (+XFS_DQUOT_VERSION+). -.d_flags +*d_flags*:: Specifies which type of ID the structure applies to: [source, c] @@ -79,71 +79,71 @@ Specifies which type of ID the structure applies to: #define XFS_DQ_GROUP 0x0004 ---- -.d_id +*d_id*:: The ID for the quota structure. This will be a uid, gid or projid based on the value of +d_flags+. -.d_blk_hardlimit +*d_blk_hardlimit*:: Specifies the hard limit for the number of filesystem blocks the ID can own. The ID will not be able to use more space than this limit. If it is attempted, +ENOSPC+ will be returned. -.d_blk_softlimit +*d_blk_softlimit*:: Specifies the soft limit for the number of filesystem blocks the ID can own. The ID can temporarily use more space than by +d_blk_softlimit+ up to +d_blk_hardlimit+. If the space is not freed by the time limit specified by ID zero's +d_btimer+ value, the ID will be denied more space until the total blocks owned goes below +d_blk_softlimit+. -.d_ino_hardlimit +*d_ino_hardlimit*:: Specifies the hard limit for the number of inodes the ID can own. The ID will not be able to create or own any more inodes if +d_icount+ reaches this value. -.d_ino_softlimit +*d_ino_softlimit*:: Specifies the soft limit for the number of inodes the ID can own. The ID can temporarily create or own more inodes than specified by d_ino_softlimit up to d_ino_hardlimit. If the inode count is not reduced by the time limit specified by ID zero's d_itimer value, the ID will be denied from creating or owning more inodes until the count goes below d_ino_softlimit. -.d_bcount +*d_bcount*:: Specifies how many filesystem blocks are actually owned by the ID. -.d_icount +*d_icount*:: Specifies how many inodes are actually owned by the ID. -.d_itimer +*d_itimer*:: Specifies the time when the ID's +d_icount+ exceeded +d_ino_softlimit+. The soft limit will turn into a hard limit after the elapsed time exceeds ID zero's +d_itimer+ value. When d_icount goes back below +d_ino_softlimit+, +d_itimer+ is reset back to zero. -.d_btimer +*d_btimer*:: Specifies the time when the ID's +d_bcount+ exceeded +d_blk_softlimit+. The soft limit will turn into a hard limit after the elapsed time exceeds ID zero's +d_btimer+ value. When d_bcount goes back below +d_blk_softlimit+, +d_btimer+ is reset back to zero. -.d_iwarns -.d_bwarns -.d_rtbwarns +*d_iwarns*:: +*d_bwarns*:: +*d_rtbwarns*:: Specifies how many times a warning has been issued. Currently not used. -.d_rtb_hardlimit +*d_rtb_hardlimit*:: Specifies the hard limit for the number of real-time blocks the ID can own. The ID cannot own more space on the real-time subvolume beyond this limit. -.d_rtb_softlimit +*d_rtb_softlimit*:: Specifies the soft limit for the number of real-time blocks the ID can own. The ID can temporarily own more space than specified by +d_rtb_softlimit+ up to +d_rtb_hardlimit+. If +d_rtbcount+ is not reduced by the time limit specified by ID zero's +d_rtbtimer value+, the ID will be denied from owning more space until the count goes below +d_rtb_softlimit+. -.d_rtbcount +*d_rtbcount*:: Specifies how many real-time blocks are currently owned by the ID. -.d_rtbtimer +*d_rtbtimer*:: Specifies the time when the ID's +d_rtbcount+ exceeded +d_rtb_softlimit+. The soft limit will turn into a hard limit after the elapsed time exceeds ID zero's +d_rtbtimer+ value. When +d_rtbcount+ goes back below +d_rtb_softlimit+, diff --git a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc index 017f607..dfdcc32 100644 --- a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc +++ b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc @@ -101,20 +101,20 @@ struct xfs_dinode_core { }; ---- -.di_magic +*di_magic*:: The inode signature where these two bytes are 0x494e, or "IN" in ASCII. -.di_mode +*di_mode*:: Specifies the mode access bits and type of file using the standard S_Ixxx values defined in stat.h. -.di_version +*di_version*:: Specifies the inode version which currently can only be 1 or 2. The inode version specifies the usage of the +di_onlink+, +di_nlink+ and +di_projid+ values in the inode core. Initially, inodes are created as v1 but can be converted on the fly to v2 when required. -.di_format +*di_format*:: Specifies the format of the data fork in conjunction with the +di_mode+ type. This can be one of several values. For directories and links, it can be "local" @@ -137,34 +137,34 @@ typedef enum xfs_dinode_fmt { } xfs_dinode_fmt_t; ---- -.di_onlink +*di_onlink*:: In v1 inodes, this specifies the number of links to the inode from directories. When the number exceeds 65535, the inode is converted to v2 and the link count is stored in +di_nlink+. -.di_uid +*di_uid*:: Specifies the owner's UID of the inode. -.di_gid +*di_gid*:: Specifies the owner's GID of the inode. -.di_nlink +*di_nlink*:: Specifies the number of links to the inode from directories. This is maintained for both inode versions for current versions of XFS. Old versions of XFS did not support v2 inodes, and therefore this value was never updated and was classed as reserved space (part of +di_pad+). -.di_projid +*di_projid*:: Specifies the owner's project ID in v2 inodes. An inode is converted to v2 if the project ID is set. This value must be zero for v1 inodes. -.di_pad[8] +*di_pad[8]*:: Reserved, must be zero. -.di_flushiter +*di_flushiter*:: Incremented on flush. -.di_atime +*di_atime*:: Specifies the last access time of the files using UNIX time conventions the following structure. This value maybe undefined if the filesystem is mounted @@ -178,24 +178,24 @@ struct xfs_timestamp { }; ---- -.di_mtime +*di_mtime*:: Specifies the last time the file was modified. -.di_ctime +*di_ctime*:: Specifies when the inode's status was last changed. -.di_size +*di_size*:: Specifies the EOF of the inode in bytes. This can be larger or smaller than the extent space (therefore actual disk space) used for the inode. For regular files, this is the filesize in bytes, directories, the space taken by directory entries and for links, the length of the symlink. -.di_nblocks +*di_nblocks*:: Specifies the number of filesystem blocks used to store the inode's data including relevant metadata like B+trees. This does not include blocks used for extended attributes. -.di_extsize +*di_extsize*:: Specifies the extent size for filesystems with real-time devices and an extent size hint for standard filesystems. For normal filesystems, and with directories, the +XFS_DIFLAG_EXTSZINHERIT+ flag must be set in +di_flags+ if @@ -204,13 +204,13 @@ di_extsize value and have +XFS_DIFLAG_EXTSIZE+ set in their +di_flags+. When a file is written to beyond allocated space, XFS will attempt to allocate additional disk space based on this value. -.di_nextents +*di_nextents*:: Specifies the number of data extents associated with this inode. -.di_anextents +*di_anextents*:: Specifies the number of extended attribute extents associated with this inode. -.di_forkoff +*di_forkoff*:: Specifies the offset into the inode's literal area where the extended attribute fork starts. This is an 8-bit value that is multiplied by 8 to determine the actual offset in bytes (ie. attribute data is 64-bit aligned). This also limits @@ -220,19 +220,19 @@ an extended attribute is created. When in attribute is added, the nature of Refer to xref:Extended_Attribute_Versions[Extended Attribute Versions] for more details. -.di_aformat +*di_aformat*:: Specifies the format of the attribute fork. This uses the same values as +di_format+, but restricted to "local", "extents" and "btree" formats for extended attribute data. -.di_dmevmask +*di_dmevmask*:: DMAPI event mask. -.di_dmstate +*di_dmstate*:: DMAPI state. -.di_flags +*di_flags*:: Specifies flags associated with the inode. This can be a combination of the following values: @@ -271,7 +271,7 @@ Specifies the inode is to be ignored when defragmenting the filesystem. |===== -.di_gen +*di_gen*:: A generation number used for inode identification. This is used by tools that do inode scanning such as backup tools and xfsdump. An inode's generation number can change by unlinking and creating a new file that reuses the inode. From darrick.wong@oracle.com Wed Nov 11 13:23:13 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C40D47F81 for ; Wed, 11 Nov 2015 13:23:13 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 42F47AC001 for ; Wed, 11 Nov 2015 11:23:10 -0800 (PST) X-ASG-Debug-ID: 1447269788-04cbb0242212cc40001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id hCLLZeQQ93m54DDS (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:23:08 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJMkSm023827 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:22:46 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMk5Q010463 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:22:46 GMT Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMjQ6032325; Wed, 11 Nov 2015 19:22:46 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:22:45 -0800 Subject: [PATCH 04/21] xfsdocs: convert html entities to regular characters From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 04/21] xfsdocs: convert html entities to regular characters To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:22:44 -0800 Message-ID: <20151111192244.14235.27865.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447269788 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Convert HTML entities back to regular characters, since this is now ASCII. Signed-off-by: Darrick J. Wong --- .../XFS_Filesystem_Structure/directories.asciidoc | 20 ++++++++++---------- .../extended_attributes.asciidoc | 14 +++++++------- 2 files changed, 17 insertions(+), 17 deletions(-) diff --git a/design/XFS_Filesystem_Structure/directories.asciidoc b/design/XFS_Filesystem_Structure/directories.asciidoc index 98143f7..76d5df7 100644 --- a/design/XFS_Filesystem_Structure/directories.asciidoc +++ b/design/XFS_Filesystem_Structure/directories.asciidoc @@ -321,8 +321,8 @@ blocksize = 4096 ... dirblklog = 0 ... -xfs_db> inode <inode#> -xfs_db> p +xfs_db> inode +xfs_db> p core.magic = 0x494e core.mode = 040755 core.version = 1 @@ -694,9 +694,9 @@ And the last data block: ---- -xfs_db> dblock 2 -xfs_db> type dir2 -xfs_db> p +xfs_db> dblock 2 +xfs_db> type dir2 +xfs_db> p dhdr.magic = 0x58443244 dhdr.bestfree[0].offset = 0x70 dhdr.bestfree[0].length = 0xf90 @@ -892,8 +892,8 @@ blocksize = 4096 ... dirblklog = 2 ... -xfs_db> inode <inode#> -xfs_db> p +xfs_db> inode +xfs_db> p core.magic = 0x494e core.mode = 040755 core.version = 1 @@ -1101,9 +1101,9 @@ u.bmbt.level = 1 u.bmbt.numrecs = 1 u.bmbt.keys[1] = [startoff] 1:[0] u.bmbt.ptrs[1] = 1:89 -xfs_db> fsblock 89 -xfs_db> type bmapbtd -xfs_db> p +xfs_db> fsblock 89 +xfs_db> type bmapbtd +xfs_db> p magic = 0x424d4150 level = 0 numrecs = 234 diff --git a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc index 9887332..8b32bdf 100644 --- a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc +++ b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc @@ -355,8 +355,8 @@ core.aformat = 2 (extents) ... a.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,37535,9,0] -xfs_db> ablock 0 -xfs_db> p +xfs_db> ablock 0 +xfs_db> p hdr.info.forw = 0 hdr.info.back = 0 hdr.info.magic = 0xfbee @@ -580,9 +580,9 @@ rightsib = 109968 recs[1-127] = [startoff,startblock,blockcount,extentflag] 1:[0,81870,1,0] ... -xfs_db> fsblock 109968 -xfs_db> type bmapbtd -xfs_db> p +xfs_db> fsblock 109968 +xfs_db> type bmapbtd +xfs_db> p magic = 0x424d4150 level = 0 numrecs = 147 @@ -591,8 +591,8 @@ rightsib = null recs[1-147] = [startoff,startblock,blockcount,extentflag] ... (which is fsblock 81870) -xfs_db> ablock 0 -xfs_db> p +xfs_db> ablock 0 +xfs_db> p hdr.info.forw = 0 hdr.info.back = 0 hdr.info.magic = 0xfebe From darrick.wong@oracle.com Wed Nov 11 13:23:20 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DFF9F7F8B for ; Wed, 11 Nov 2015 13:23:19 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 47BB3AC001 for ; Wed, 11 Nov 2015 11:23:19 -0800 (PST) X-ASG-Debug-ID: 1447269796-04cb6c296d125000001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id mWHzVD2w8puBaAs6 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:23:16 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJMrjF025068 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:22:53 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMqmo021765 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:22:52 GMT Received: from abhmp0006.oracle.com (abhmp0006.oracle.com [141.146.116.12]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMqEj017900; Wed, 11 Nov 2015 19:22:52 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:22:52 -0800 Subject: [PATCH 05/21] xfsdocs: convert images to text From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 05/21] xfsdocs: convert images to text To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:22:51 -0800 Message-ID: <20151111192250.14235.57607.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447269796 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Convert images that are purely screenshots of xfs_db sessions to text, to reduce the document size and format better. Signed-off-by: Darrick J. Wong --- .../XFS_Filesystem_Structure/data_extents.asciidoc | 37 ++++- .../XFS_Filesystem_Structure/directories.asciidoc | 65 +++++++- .../extended_attributes.asciidoc | 161 ++++++++++++++++++-- .../symbolic_links.asciidoc | 15 ++ 4 files changed, 251 insertions(+), 27 deletions(-) diff --git a/design/XFS_Filesystem_Structure/data_extents.asciidoc b/design/XFS_Filesystem_Structure/data_extents.asciidoc index d7f51e4..b71bc52 100644 --- a/design/XFS_Filesystem_Structure/data_extents.asciidoc +++ b/design/XFS_Filesystem_Structure/data_extents.asciidoc @@ -132,14 +132,43 @@ u.bmx[0-2] = [startoff,startblock,blockcount,extentflag] Raw disk version of the inode with the third extent highlighted (+di_u+ always starts at offset 0x64): -.Raw inode contents with extents -image::images/code/33a.png[] +[subs="quotes"] +---- +xfs_db> type text +xfs_db> p +00: 49 4e 81 a4 01 02 00 01 00 00 00 00 00 00 00 00 IN.............. +10: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 01 ................ +20: 44 b6 88 dd 2f 8a ed d0 44 b6 88 f7 10 8c 5b de D.......D....... +30: 44 b6 88 f7 10 8c 5b d0 00 00 00 00 01 7b b0 00 D............... +40: 00 00 00 00 00 00 17 bb 00 00 00 00 00 00 00 03 ................ +50: 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 ................ +60: ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 0d ................ +70: 5e a0 07 e9 00 00 00 00 00 0f d2 00 00 00 00 0f ................ +80: 58 e0 07 e9 *00 00 00 00 00 1f a4 00 00 00 00 11 X............... +90: 53 20 07 e9* 00 00 00 00 00 00 00 00 00 00 00 00 S............... +a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +be: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +co: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +do: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +fo: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +---- We can expand the highlighted section into the following bit array from MSB to LSB with the file offset and the block count highlighted: -.Encoded extent -image::images/code/33b.png[] +[subs="quotes"] +---- +127-96: 0**000 0000 0000 0000 0000 0000 0000 0000** + 95-64: **0000 0000 0001 1111 1010 010**0 0000 0000 + 63-32: 0000 0000 0000 0000 0000 0000 0000 1111 + 31-0 : 0101 1000 111**0 0000 0000 0111 1110 1001** + +Grouping by highlights we get: + file offset = 0x0fd2 (4050) + start block = 0x7ac7 (31431) + block count = 0x07e9 (2025) +---- A 4MB file with two extents and a hole in the middle, the first extent containing 64KB of data, the second about 4MB in containing 32KB (+write+ 64KB, diff --git a/design/XFS_Filesystem_Structure/directories.asciidoc b/design/XFS_Filesystem_Structure/directories.asciidoc index 76d5df7..beabe20 100644 --- a/design/XFS_Filesystem_Structure/directories.asciidoc +++ b/design/XFS_Filesystem_Structure/directories.asciidoc @@ -149,8 +149,24 @@ u.sfdir2.list[3].inumber.i4 = 25165956 The raw data on disk with the first entry highlighted. The six byte header precedes the first entry: -.Shortform Directory entry detail -image::images/code/40.png[] +[subs="quotes"] +---- +xfs_db> type text +xfs_db> p +00: 49 4e 41 ed 01 01 00 02 00 00 00 00 00 00 00 00 INA............. +10: 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 02 ................ +20: 44 ad 3a 83 1d a9 4a d0 44 ad 3a ab 0b c7 a7 d0 D.....J.D....... +30: 44 ad 3a ab 0b c7 a7 d0 00 00 00 00 00 00 00 5e D............... +40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +50: 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 ................ +60: ff ff ff ff 04 00 00 00 00 80 *0f 00 30 66 72 61* ............0fra +70: *6d 65 30 30 30 30 30 30 2e 74 73 74 01 80 00 81* me000000.tst.... +80: 0f 00 50 66 72 61 6d 65 30 30 30 30 30 31 2e 74 ..Pframe000001.t +90: 73 74 01 80 00 82 0f 00 70 66 72 61 6d 65 30 30 st......pframe00 +a0: 30 30 30 32 2e 74 73 74 01 80 00 83 0f 00 90 66 0002.tst........ +b0: 72 61 6d 65 30 30 30 30 30 33 2e 74 73 74 01 80 rame000003.tst.. +cO: 00 84 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +---- Next, an entry is deleted (frame000001.tst), and any entries after the deleted entry are moved or compacted to "cover" the hole: @@ -479,8 +495,21 @@ and the length of the space. The tag remains intact at the +offset+length - sizeof(tag)+. The address for the hash is also cleared. The affected areas are highlighted below: -.Block directory free entry detail -image::images/code/46.png[] +[subs="quotes"] +---- +090: 00 00 00 00 02 00 00 84 0f 66 72 61 6d 65 30 30 ..........frame00 +0a0: 30 30 30 33 2e 74 73 74 00 00 00 00 00 00 00 90 0003.tst......... +0b0: *ff ff 00 20* 02 00 00 85 0f 66 72 61 6d 65 30 30 ..........frame00 +0c0: 30 30 30 34 2e 74 73 74 00 00 00 00 *00 00 00 b0* 0004.tst......... +0d0: 00 00 00 00 02 00 00 86 0f 66 72 61 6d 65 30 30 ..........frame00 +0e0: 30 30 30 35 2e 74 73 74 00 00 00 00 00 00 00 0d 0005.tst......... +... +fb0: 00 00 17 2e 00 00 00 04 83 a0 40 b4 00 00 00 0e ................. +fc0: 93 a0 40 b4 00 00 00 12 a3 a0 40 b4 00 00 00 06 ................. +fd0: b3 a0 40 b4 00 00 00 0a c3 a0 40 b4 00 00 00 1e ................. +fe0: d3 a0 40 b4 00 00 00 22 e3 a0 40 b4 *00 00 00 00* ................. +ff0: f3 a0 40 b4 00 00 00 1a 00 00 00 0a *00 00 00 01* ................. +---- @@ -1049,8 +1078,13 @@ block's +bestfree[0].length+ value. The raw disk layout, old data is not cleared after the array. The fbests array is highlighted: -.Node directory freespace detail -image::images/code/57.png[] +[subs="quotes"] +---- +xfs_db> type text +xfs_db> p +000: 58 44 32 46 00 00 00 00 00 00 00 05 00 00 00 05 XD2F............ +010: *00 10 00 10 00 10 00 10 3f 50* 00 00 1f 01 ff ff .........P...... +---- TODO: Example with a hole in the middle @@ -1188,6 +1222,21 @@ The leaves at each the end of a node always point to the end leaves in adjacent nodes. Directory block 8388928 forward pointer is to block 8388919, and vice versa as highlighted in the following example: -.B+tree directory pointer detail -image::images/code/60.png[] +[subs="quotes"] +---- +xfs_db> dblock 8388928 +xfs_db> type dir2 +xfs_db> p +lhdr.info.forw = *8388919* +lhdr.info.back = 8388937 +lhdr.info.magic = 0xd2ff +... +xfs_db> dblock 8388919 +xfs_db> type dir2 +xfs_db> p +lhdr.info.forw = 8388706 +lhdr.info.back = *8388928* +lhdr.info.magic = 0xd2ff +... +---- diff --git a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc index 8b32bdf..51f7ff7 100644 --- a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc +++ b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc @@ -128,8 +128,27 @@ a.sfattr.list[1].value = "val1" We can determine the actual inode offset to be 220 (15 x 8 + 100) or +0xdc+. Examining the raw dump, the second attribute is highlighted: -.Shortform Attribute detail -image::images/code/65.png[] +[subs="quotes"] +---- +xfs_db> type text +xfs_db> p +09: 49 4e 81 a4 01 02 00 01 00 00 00 00 00 00 00 00 IN.............. +10: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 02 ................ +20: 44 be 19 be 38 d1 26 98 44 be 1a be 38 d1 26 98 D...8...D...8... +30: 44 be 1a e1 3a 9a ea 18 00 00 00 00 00 00 00 04 D............... +40: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 ................ +50: 00 00 0f 01 00 00 00 00 00 00 00 00 00 00 00 00 ................ +60: ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 12 ................ +70: 53 a0 00 01 00 00 00 00 00 00 00 00 00 00 00 00 ................ +80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +d0: 00 00 00 00 00 00 00 00 00 00 00 00 *00 18* 02 00 ................ <-- hdr.totsize = 0x18 +e0: 05 00 00 65 6d 70 74 79 *05 04 02 74 72 75 73 74* ...empty...trust +f0: *76 61 6c 31* 00 00 00 00 00 00 00 00 00 00 00 00 val1............ +---- Adding another attribute with attr1, the format is converted to extents and +di_forkoff+ remains unchanged (and all those zeros in the dump above remain @@ -192,8 +211,34 @@ a.sfattr.list[1].value = "val1" Another attribute is added: -.Shortform Multiple Attribute detail -image::images/code/66.png[] +[subs="quotes"] +---- +xfs_db> p +... +core.naextents = 0 +*core.forkoff = 13* +core.aformat = 1 (local) +... +a.sfattr.hdr.totsize = 52 +a.sfattr.hdr.count = 3 +a.sfattr.list[0].namelen = 10 +a.sfattr.list[0].valuelen = 0 +a.sfattr.list[0].root = 0 +a.sfattr.list[0].secure = 0 +a.sfattr.list[0].name = "empty_attr" +a.sfattr.list[1].namelen = 7 +a.sfattr.list[1].valuelen = 4 +a.sfattr.list[1].root = 1 +a.sfattr.list[1].secure = 0 +a.sfattr.list[1].name = "trust_a" +a.sfattr.list[1].value = "val1" +a.sfattr.list[2].namelen = 6 +a.sfattr.list[2].valuelen = 12 +a.sfattr.list[2].root = 0 +a.sfattr.list[2].secure = 0 +a.sfattr.list[2].name = "second" +a.sfattr.list[2].value = "second_value" +---- One more is added: @@ -233,8 +278,27 @@ a.sfattr.list[3].value = "contents" A raw dump is shown to compare with the attr1 dump on a prior page, the header is highlighted: -.Shortform attribute header detail -image::images/code/67.png[] +[subs="quotes"] +---- +xfs_db> type text +xfs_db> p +00: 49 4e 81 a4 01 02 00 01 00 00 00 00 00 00 00 00 IN.............. +10: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 05 ................ +20: 44 be 24 cd 0f b0 96 18 44 be 24 cd 0f b0 96 18 D.......D....... +30: 44 be 2d f5 01 62 7a 18 00 00 00 00 00 00 00 04 D....bz......... +40: 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 ................ +50: 00 00 0a 01 00 00 00 00 00 00 00 00 00 00 00 00 ................ +60: ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 01 ................ +70: 41 c0 00 01 00 00 00 00 00 00 00 00 00 00 00 00 A............... +80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +b0: 00 00 00 00 *00 45 04 00* 0a 00 00 65 6d 70 74 79 .....E.....empty +c0: 5f 61 74 74 72 07 04 02 74 72 75 73 74 5f 61 76 .attr...trust.av +d0: 61 6c 31 06 0c 00 73 65 63 6f 6e 64 73 65 63 6f all...secondseco +e0: 6e 64 5f 76 61 6c 75 65 06 08 04 70 6f 6c 69 63 nd.value...polic +f0: 79 63 6f 6e 74 65 6e 74 73 64 5f 76 61 6c 75 65 ycontentsd.value +---- It can be clearly seen that attr2 allows many more attributes to be stored in an inode before they are moved to another filesystem block. @@ -444,9 +508,19 @@ flag set and the values are printed. A raw disk dump shows the attributes. The last attribute added is highlighted (offset 4044 or 0xfcc): -.Leaf Attribute detail -image::images/code/71.png[] - +[subs="quotes"] +---- +000: 00 00 00 00 00 00 00 00 fb ee 00 00 00 03 00 34 ...............4 +010: 0f cc 00 00 00 38 0f 94 00 00 00 00 00 00 00 00 .....8.......... +020: 1e 9d 39 34 0f cc 01 00 1e 9d 39 37 0f dc 01 00 ..94......97.... +030: fc f8 9d 4f 0f ec 00 00 00 00 00 00 00 00 00 00 ...0............ +040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................. +... +fc0: 00 00 00 00 00 00 00 00 00 00 00 00 *00 06 05 61* ...............a +fd0: *74 74 72 32 76 61 6c 75 65 32* 00 00 00 06 05 61 ttr2value2.....a +fe0: 74 74 72 31 76 61 6c 75 65 31 00 00 00 00 00 01 ttr1value1...... +ff0: 00 00 77 e4 08 62 69 67 5f 61 74 74 72 00 00 00 ..w..big.attr... +---- [[Node_Attributes]] == Node Attributes @@ -522,16 +596,77 @@ xfs_db> hash attribute_267 In the root btree node, this falls between +0x3437922e+ and +0x3437d22a+, therefore leaf 11 or attribute block 5 will contain the entry. -.Node Attribute lookup detail -image::images/code/73-74.png[] +[subs="quotes"] +---- +xfs_db> ablock 5 +xfs_db> p +hdr.info.forw = 4 +hdr.info.back = 3 +hdr.info.magic = 0xfbee +hdr.count = 96 +hdr.usedbytes = 2688 +hdr.firstused = 1408 +hdr.holes = 0 +hdr.freemap[0-2] = [base,size] 0:[800,608] 1:[0,0] 2:[0,0] +entries[0.95] = [hashval,nameidx,incomplete,root,secure,local] + 0:[0x3437922f,4068,0,0,0,1] + 1:[0x343792a6,4040,0,0,0,1] + 2:[0x343792a7,4012,0,0,0,1] + 3:[0x343792a8,3984,0,0,0,1] + ... + 82:[0x3437d1a7,2892,0,0,0,1] + *83:[0x3437d1a8,2864,0,0,0,1]* + 84:[0x3437d1a9,2836,0,0,0,1] + ... + 95:[0x3437d22a,2528,0,0,0,1] +nvlist[0].valuelen = 10 +nvlist[0].namelen = 13 +nvlist[0].name = "attribute_310" +nvlist[0].value = "value_316\d" +nvlist[1].valuelen = 16 +nvlist[1].namelen = 13 +nvlist[1].name = "attribute_309" +nvlist[1].value = "value_309\d" +nvlist[2].valuelen = 10 +nvlist[2].namelen = 13 +nvlist[2].name = "attribute_308" +nvlist[2].value = "value_308\d" +nvlist[3].valuelen = 10 +nvlist[3].namelen = 13 +nvlist[3].name = "attribute_307" +nvlist[3].value = "value_307\d" +... +nvlist[82].valuelen = 10 +nvlist[82].namelen = 13 +nvlist[82].name = "attribute_268" +nvlist[82].value = "value_268\d" +nvlist[83].valuelen = 10 +nvlist[83].namelen = 13 +nvlist[83].name = "attribute_267" +nvlist[83].value = "value_267\d" +nvlist[84].valuelen = 10 +nvlist[84].namelen = 13 +nvlist[84].name = "attribute_266" +nvlist[84].value = "value_266\d" +... +---- Each of the hash entries has +XFS_ATTR_LOCAL+ flag set (1), which means the attribute's value follows immediately after the name. Raw disk of the name/value pair at offset 2864 (0xb30), highlighted with "value_267\d" following immediately after the name: -.Node Attribute value detail -image::images/code/74.png[] +[subs="quotes"] +---- +b00: 62 75 74 65 5f 32 36 35 76 61 6c 75 65 5f 32 36 bute.265value.26 +b10: 35 0a 00 00 00 0a 0d 61 74 74 72 69 62 75 74 65 5......attribute +b20: 51 32 36 36 76 61 6c 75 65 5f 32 36 36 0a 00 00 .266value.266... +b30: *00 0a 0d 61 74 74 72 69 62 75 74 65 5f 32 36 37* ...attribute.267 +b40: *76 61 6c 75 65 5f 32 36 37 0a* 00 00 00 0a 0d 61 value.267......a +b50: 74 74 72 69 62 75 74 65 5f 32 36 38 76 61 6c 75 ttribute.268va1u +b60: 65 5f 32 36 38 0a 00 00 00 0a 0d 61 74 74 72 69 e.268......attri +b70: 62 75 74 65 5f 32 36 39 76 61 6c 75 65 5f 32 36 bute.269value.26 +---- Each entry starts on a 32-bit (4 byte) boundary, therefore the highlighted entry has 2 unused bytes after it. diff --git a/design/XFS_Filesystem_Structure/symbolic_links.asciidoc b/design/XFS_Filesystem_Structure/symbolic_links.asciidoc index 9c9ca30..af88a1c 100644 --- a/design/XFS_Filesystem_Structure/symbolic_links.asciidoc +++ b/design/XFS_Filesystem_Structure/symbolic_links.asciidoc @@ -38,8 +38,19 @@ u.symlink = "small_target" Raw on-disk data with the link contents highlighted: -.Shortform symbolic link format -image::images/code/61.png[] +[subs="quotes"] +---- +xfs_db> type text +xfs_db> p +00: 49 4e a1 ff 01 01 00 01 00 00 00 00 00 00 00 00 IN.............. +10: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 01 ................ +20: 44 be e1 c7 03 c4 d4 18 44 be el c7 03 c4 d4 18 D.......D....... +30: 44 be e1 c7 03 c4 d4 18 00 00 00 00 00 00 00 Oc D............... +40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +50: 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 ................ +60: ff ff ff ff *73 6d 61 6c 6c 5f 74 61 72 67 65 74* ....small.target +70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ +---- [[Extent_Symbolic_Links]] From darrick.wong@oracle.com Wed Nov 11 13:23:24 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6FE387F91 for ; Wed, 11 Nov 2015 13:23:24 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1B0B7AC001 for ; Wed, 11 Nov 2015 11:23:23 -0800 (PST) X-ASG-Debug-ID: 1447269801-04bdf03f04121290001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id HNL60GV0pELdCiuf (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:23:21 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJMxfU025178 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:23:00 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMxZK017138 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:22:59 GMT Received: from abhmp0015.oracle.com (abhmp0015.oracle.com [141.146.116.21]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABJMwh5012827; Wed, 11 Nov 2015 19:22:59 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:22:58 -0800 Subject: [PATCH 06/21] xfsdocs: update types From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 06/21] xfsdocs: update types To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:22:57 -0800 Message-ID: <20151111192257.14235.17490.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447269801 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Update the common data types to reflect modern XFS source. Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 8 +++---- .../XFS_Filesystem_Structure/common_types.asciidoc | 23 ++++++++++++++------ .../XFS_Filesystem_Structure/data_extents.asciidoc | 4 ++- .../XFS_Filesystem_Structure/ondisk_inode.asciidoc | 2 +- 4 files changed, 23 insertions(+), 14 deletions(-) diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index afbbb67..b511324 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -47,11 +47,11 @@ struct xfs_sb { __uint32_t sb_magicnum; __uint32_t sb_blocksize; - xfs_drfsbno_t sb_dblocks; - xfs_drfsbno_t sb_rblocks; - xfs_drtbno_t sb_rextents; + xfs_rfsblock_t sb_dblocks; + xfs_rfsblock_t sb_rblocks; + xfs_rtblock_t sb_rextents; uuid_t sb_uuid; - xfs_dfsbno_t sb_logstart; + xfs_fsblock_t sb_logstart; xfs_ino_t sb_rootino; xfs_ino_t sb_rbmino; xfs_ino_t sb_rsumino; diff --git a/design/XFS_Filesystem_Structure/common_types.asciidoc b/design/XFS_Filesystem_Structure/common_types.asciidoc index ea2d21f..51909be 100644 --- a/design/XFS_Filesystem_Structure/common_types.asciidoc +++ b/design/XFS_Filesystem_Structure/common_types.asciidoc @@ -10,7 +10,7 @@ Unsigned 64 bit absolute xref:Inode_Numbers[inode number]. Signed 64 bit file offset. *xfs_daddr_t*:: -Signed 64 bit disk address. +Signed 64 bit disk address (sectors). *xfs_agnumber_t*:: Unsigned 32 bit xref:Allocation_Groups[AG number]. @@ -22,7 +22,10 @@ Unsigned 32 bit AG relative block number. Unsigned 32 bit xref:Data_Extents[extent] length in blocks. *xfs_extnum_t*:: -Signed 32 bit number of extents in a file. +Signed 32 bit number of extents in a data fork. + +*xfs_aextnum_t*:: +Signed 16 bit number of extents in an attribute fork. *xfs_dablk_t*:: Unsigned 32 bit block number for xref:Directories[directories] and @@ -31,19 +34,25 @@ xref:Extended_Attributes[extended attributes]. *xfs_dahash_t*:: Unsigned 32 bit hash of a directory file name or extended attribute name. -*xfs_dfsbno_t*:: +*xfs_fsblock_t*:: Unsigned 64 bit filesystem block number combining xref:Allocation_Groups[AG number] and block offset into the AG. -*xfs_drfsbno_t*:: +*xfs_rfsblock_t*:: Unsigned 64 bit raw filesystem block number. -*xfs_drtbno_t*:: +*xfs_rtblock_t*:: Unsigned 64 bit extent number in the xref:Real-time_Devices[real-time] sub-volume. -*xfs_dfiloff_t*:: +*xfs_fileoff_t*:: Unsigned 64 bit block offset into a file. -*xfs_dfilblks_t*:: +*xfs_filblks_t*:: Unsigned 64 bit block count for a file. + +*uuid_t*:: +16-byte universally unique identifier (UUID). + +*xfs_fsize_t*:: +Signed 64 bit byte size of a file. diff --git a/design/XFS_Filesystem_Structure/data_extents.asciidoc b/design/XFS_Filesystem_Structure/data_extents.asciidoc index b71bc52..8b09fee 100644 --- a/design/XFS_Filesystem_Structure/data_extents.asciidoc +++ b/design/XFS_Filesystem_Structure/data_extents.asciidoc @@ -217,9 +217,9 @@ struct xfs_bmdr_block { __be16 bb_numrecs; }; struct xfs_bmbt_key { - xfs_dfiloff_t br_startoff; + xfs_fileoff_t br_startoff; }; -typedef xfs_dfsbno_t xfs_bmbt_ptr_t, xfs_bmdr_ptr_t; +typedef xfs_fsblock_t xfs_bmbt_ptr_t, xfs_bmdr_ptr_t; ---- * On disk, the B+tree node starts with the +xfs_bmbr_block_t+ header followed by diff --git a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc index dfdcc32..7262178 100644 --- a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc +++ b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc @@ -88,7 +88,7 @@ struct xfs_dinode_core { xfs_timestamp_t di_mtime; xfs_timestamp_t di_ctime; xfs_fsize_t di_size; - xfs_drfsbno_t di_nblocks; + xfs_rfsblock_t di_nblocks; xfs_extlen_t di_extsize; xfs_extnum_t di_nextents; xfs_aextnum_t di_anextents; From darrick.wong@oracle.com Wed Nov 11 13:23:32 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 27D3E7F8B for ; Wed, 11 Nov 2015 13:23:32 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id E22A98F8040 for ; Wed, 11 Nov 2015 11:23:31 -0800 (PST) X-ASG-Debug-ID: 1447269809-04bdf03f051212a0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id pG66NlIBsratYcwV (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:23:29 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJN5eo024356 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:23:06 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABJN5Nr022369 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:23:05 GMT Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABJN5bq012942; Wed, 11 Nov 2015 19:23:05 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:23:05 -0800 Subject: [PATCH 07/21] xfsdocs: make example section titles consistent From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 07/21] xfsdocs: make example section titles consistent To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:23:03 -0800 Message-ID: <20151111192303.14235.77696.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447269809 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Make the section titles of the examples consistently formatted. Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 6 +++--- .../XFS_Filesystem_Structure/data_extents.asciidoc | 6 +++--- .../XFS_Filesystem_Structure/directories.asciidoc | 16 ++++++++-------- .../extended_attributes.asciidoc | 16 ++++++++-------- .../symbolic_links.asciidoc | 8 ++++---- 5 files changed, 26 insertions(+), 26 deletions(-) diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index b511324..a86274c 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -308,7 +308,7 @@ its parent inode. The primary purpose for this information is in backup systems. |===== -=== xfs_db superblock example +=== xfs_db Superblock Example A filesystem is made on a single SATA disk with the following command: @@ -548,7 +548,7 @@ image::images/16.png[] The presence of these reserved block guarantees that the free space B+trees can be updated if any blocks are freed by extent changes in a full AG. -==== xfs_db AGF Examples +==== xfs_db AGF Example These examples are derived from an AG that has been deliberately fragmented. The AGF: @@ -772,7 +772,7 @@ And a 2-level inode B+tree: image::images/20b.png[] -==== xfs_db AGI examples +==== xfs_db AGI Example TODO [[Real-time_Devices]] diff --git a/design/XFS_Filesystem_Structure/data_extents.asciidoc b/design/XFS_Filesystem_Structure/data_extents.asciidoc index 8b09fee..7850165 100644 --- a/design/XFS_Filesystem_Structure/data_extents.asciidoc +++ b/design/XFS_Filesystem_Structure/data_extents.asciidoc @@ -88,7 +88,7 @@ The number of extents that can fit in the inode depends on the inode size and can up to 19 extents with this format. Beyond this, extents have to use the B+tree format. -=== xfs_db: Inode data fork extents +=== xfs_db Inode Data Fork Extents Example An 8MB file with one extent: @@ -268,9 +268,9 @@ bits in size. .Single level extent B+tree image::images/35.png[] -.Multi-level extent B+tree +.Multiple level extent B+tree image::images/36.png[] -=== BMBT xfs_db Example +=== xfs_db bmbt Example TODO diff --git a/design/XFS_Filesystem_Structure/directories.asciidoc b/design/XFS_Filesystem_Structure/directories.asciidoc index beabe20..7d84117 100644 --- a/design/XFS_Filesystem_Structure/directories.asciidoc +++ b/design/XFS_Filesystem_Structure/directories.asciidoc @@ -47,7 +47,7 @@ typedef __uint32_t xfs_dir2_dataptr_t; [[Shortform_Directories]] -== Shortform Directories +== Short Form Directories * Directory entries are stored within the inode. @@ -86,7 +86,7 @@ typedef struct xfs_dir2_sf_entry { } xfs_dir2_sf_entry_t; ---- -.Shortform Directory layout +.Short form directory layout image::images/39.png[] * Inode numbers are stored using 4 or 8 bytes depending on whether all the inode @@ -107,7 +107,7 @@ typedef union { } xfs_dir2_inou_t; ---- -=== Shortform Directory xfs_db Example +=== xfs_db Short Form Directory Example A directory is created with 4 files, all inode numbers fitting within 4 bytes: @@ -325,7 +325,7 @@ lookup speed for large directories. If they were not stored, the hashes have to be calculated for all entries each time a lookup occurs in a directory. -=== Block Directory xfs_db Example +=== xfs_db Block Directory Example A directory is created with 8 entries, directory block size = filesystem block size: @@ -585,7 +585,7 @@ block's +bestfree[0].length+ value. .Leaf directory free entry detail image::images/48.png[] -=== Leaf Directory xfs_db Example +=== xfs_db Leaf Directory Example For this example, a directory was created with 256 entries (frame000000.tst to frame000255.tst) and then deleted some files (frame00005*, frame00018* and @@ -905,10 +905,10 @@ less than or equal to +hdr.nused. hdr.nused+ should be the same as the index of the last data directory block plus one (i.e. when the last data block is freed, +nused+ and +nvalid+ are decremented). -.Node Directory Layout +.Node directory layout image::images/54.png[] -=== Node Directory xfs_db Example +=== xfs_db Node Directory Example With the node directory examples, we are using a filesystems with 4KB block size, and a 16KB directory size. The directory has over 2000 entries: @@ -1111,7 +1111,7 @@ that B+trees can handle: required hundreds of thousand files with quite long file names (or millions with shorter names) to get a second freeindex block. -=== B+tree Directory xfs_db Example +=== xfs_db B+tree Directory Example A directory has been created with 200,000 entries with each entry being 100 characters long. The filesystem block size and directory block size are 4KB: diff --git a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc index 51f7ff7..747217c 100644 --- a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc +++ b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc @@ -41,7 +41,7 @@ The following four sections describe each of the on-disk formats. [[Shortform_Attributes]] -== Shortform Attributes +== Short Form Attributes When the all extended attributes can fit within the inode's attribute fork, the inode's +di_aformat+ is set to "local" and the attributes are stored in the @@ -67,7 +67,7 @@ typedef struct xfs_attr_sf_hdr xfs_attr_sf_hdr_t; typedef struct xfs_attr_sf_entry xfs_attr_sf_entry_t; ---- -.Shortform attribute layout +.Short form attribute layout image::images/64.png[] @@ -89,7 +89,7 @@ immediately follows the name in the array. | +XFS_ATTR_SECURE+ | The attribute's namespace is "secure". |===== -=== Shortform attribute xfs_db example +=== xfs_db Short Form Attribute Example A file is created and two attributes are set: @@ -387,7 +387,7 @@ using the +xfs_attr_leaf_name_local_t+ structure. For large attribute values that cannot be stored within the leaf, separate filesystem blocks are allocated to store the value. They use the +xfs_attr_leaf_name_remote_t+ structure. -.Leaf Attribute layout +.Leaf attribute layout image::images/69.png[] Both local and remote entries can be interleaved as they are only addressed by @@ -403,7 +403,7 @@ crash during the time that the bit is set. The bit is cleared when attribute has finished being setup. This is done because some large attributes cannot be created inside a single transaction. -=== Leaf Attribute xfs_db Example +=== xfs_db Leaf Attribute Example A single 30KB extended attribute is added to an inode: @@ -538,10 +538,10 @@ to lookup, you read the node's btree array and first +hashval+ in the array that exceeds the given hash and it can then be found in the block pointed to by the +before+ value. -.Node Attribute layout +.Node attribute layout image::images/72.png[] -=== Node Attribute xfs_db Example +=== xfs_db Node Attribute Example An inode with 1000 small attributes with the naming "attribute_n" where 'n' is a number: @@ -685,7 +685,7 @@ Attributes. Refer to the previous section on B+tree Data Extents for more information on XFS B+tree extents. -=== B+tree Attribute xfs_db Example +=== xfs_db B+tree Attribute Example Added 2000 attributes with 729 byte values to a file: diff --git a/design/XFS_Filesystem_Structure/symbolic_links.asciidoc b/design/XFS_Filesystem_Structure/symbolic_links.asciidoc index af88a1c..939c440 100644 --- a/design/XFS_Filesystem_Structure/symbolic_links.asciidoc +++ b/design/XFS_Filesystem_Structure/symbolic_links.asciidoc @@ -7,16 +7,16 @@ Symbolic links to a file can be stored in one of two formats: "local" and [[Shortform_Symbolic_Links]] -== Shortform Symbolic Links +== Short Form Symbolic Links Symbolic links are stored with the "local" +di_format+ if the symbolic link can fit within the inode's data fork. The link data is an array of characters (+di_symlink+ array in the data fork union). -.Symbolic link shortform layout +.Symbolic link short form layout image::images/61.png[] -=== Shortform symbolic link xfs_db example +=== xfs_db Short Form Symbolic Link Example A short symbolic link to a file is created: @@ -66,7 +66,7 @@ characters. .Symbolic link extent layout image::images/62.png[] -=== Symbolic link extent xfs_db example +=== xfs_db Symbolic Link Extent Example A longer link is created (greater than 156 bytes): From darrick.wong@oracle.com Wed Nov 11 13:23:45 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 129B17FA5 for ; Wed, 11 Nov 2015 13:23:45 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7D892AC002 for ; Wed, 11 Nov 2015 11:23:44 -0800 (PST) X-ASG-Debug-ID: 1447269821-04cb6c296a125020001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id QdUdnHsYuJ2URIK9 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:23:41 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJNIW0024598 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:23:19 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABJNIO6030500 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:23:18 GMT Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJNI80032654; Wed, 11 Nov 2015 19:23:18 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:23:18 -0800 Subject: [PATCH 09/21] xfsdocs: add missing structure field definitions From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 09/21] xfsdocs: add missing structure field definitions To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:23:16 -0800 Message-ID: <20151111192316.14235.12293.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447269821 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Add missing field definitions for various data structures. Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 32 +++ .../XFS_Filesystem_Structure/data_extents.asciidoc | 27 ++ .../XFS_Filesystem_Structure/directories.asciidoc | 240 ++++++++++++++++++++ design/XFS_Filesystem_Structure/docinfo.xml | 1 .../extended_attributes.asciidoc | 86 +++++++ 5 files changed, 386 insertions(+) diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index 680f90c..e958039 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -501,6 +501,23 @@ struct xfs_btree_sblock { }; ---- +*bb_magic*:: +Specifies the magic number for the per-AG B+tree block. + +*bb_level*:: +The level of the tree in which this block is found. If this value is 0, this +is a leaf block and contains records; otherwise, it is a node block and +contains keys and pointers. + +*bb_numrecs*:: +Number of records in this block. + +*bb_leftsib*:: +AG block number of the left sibling of this B+tree node. + +*bb_rightsib*:: +AG block number of the right sibling of this B+tree node. + [[AG_Free_Space_Btrees]] === AG Free Space B+trees @@ -519,6 +536,12 @@ struct xfs_alloc_rec { }; ---- +*ar_startblock*:: +AG block number of the start of the free space. + +*ar_blockcount*:: +Length of the free space. + Node pointers are an AG relative block pointer: [source, c] @@ -776,6 +799,15 @@ struct xfs_inobt_rec { }; ---- +*ir_startino*:: +The lowest-numbered inode in this chunk. + +*ir_freecount*:: +Number of free inodes in this chunk. + +*ir_free*:: +A 64 element bitmap showing which inodes in this chunk are free. + Nodes contain key/pointer pairs using the following types: [source,c] diff --git a/design/XFS_Filesystem_Structure/data_extents.asciidoc b/design/XFS_Filesystem_Structure/data_extents.asciidoc index a09fcc2..d1617f1 100644 --- a/design/XFS_Filesystem_Structure/data_extents.asciidoc +++ b/design/XFS_Filesystem_Structure/data_extents.asciidoc @@ -33,8 +33,16 @@ struct xfs_bmbt_irec { }; ---- +*br_startoff*:: +Logical block offset of this mapping. +*br_startblock*:: +Filesystem block of this mapping. +*br_blockcount*:: +The length of this mapping. + +*br_state*:: The extent +br_state+ field uses the following enum declaration: [source, c] @@ -250,6 +258,25 @@ struct xfs_btree_lblock { }; ---- +*bb_magic*:: +Specifies the magic number for the BMBT block: "BMAP" (0x424d4150). + +*bb_level*:: +The level of the tree in which this block is found. If this value is 0, this +is a leaf block and contains records; otherwise, it is a node block and +contains keys and pointers. + +*bb_numrecs*:: +Number of records in this block. + +*bb_leftsib*:: +FS block number of the left sibling of this B+tree node. + +*bb_rightsib*:: +FS block number of the right sibling of this B+tree node. + +// force-split the lists + * For intermediate nodes, the data following +xfs_btree_lblock+ is the same as the root node: array of +xfs_bmbt_key+ value followed by an array of +xfs_bmbt_ptr_t+ values that starts halfway through the block (offset 0x808 for diff --git a/design/XFS_Filesystem_Structure/directories.asciidoc b/design/XFS_Filesystem_Structure/directories.asciidoc index 3521749..2df118e 100644 --- a/design/XFS_Filesystem_Structure/directories.asciidoc +++ b/design/XFS_Filesystem_Structure/directories.asciidoc @@ -75,11 +75,35 @@ typedef struct xfs_dir2_sf { xfs_dir2_sf_hdr_t hdr; xfs_dir2_sf_entry_t list[1]; } xfs_dir2_sf_t; +---- + +*hdr*:: +Short form directory header. + +*list*:: +An array of variable-length directory entry records. + +[source, c] +---- typedef struct xfs_dir2_sf_hdr { __uint8_t count; __uint8_t i8count; xfs_dir2_inou_t parent; } xfs_dir2_sf_hdr_t; +---- + +*count*:: +Number of directory entries. + +*i8count*:: +Number of directory entries requiring 64-bit entries, if any inode numbers +require 64-bits. Zero otherwise. + +*parent*:: +The absolute inode number of this directory's parent. + +[source, c] +---- typedef struct xfs_dir2_sf_entry { __uint8_t namelen; xfs_dir2_sf_off_t offset; @@ -89,6 +113,25 @@ typedef struct xfs_dir2_sf_entry { } xfs_dir2_sf_entry_t; ---- +*namelen*:: +Length of the name, in bytes. + +*offset*:: +Offset tag used to assist with directory iteration. + +*name*:: +The name of the directory entry. The entry is not NULL-terminated. + +*ftype*:: +The type of the inode. This is used to avoid reading the inode while iterating +a directory. The +XFS_SB_VERSION2_FTYPE+ feature must be set, or this field +will not be present. + +*inumber*:: +The inode number that this entry points to. The length is either 32 or 64 +bits, depending on whether +icount+ or +i8count+, respectively, are set in the +header. + .Short form directory layout image::images/39.png[] @@ -259,18 +302,67 @@ typedef struct xfs_dir2_block { xfs_dir2_leaf_entry_t leaf[1]; xfs_dir2_block_tail_t tail; } xfs_dir2_block_t; +---- + +*hdr*:: +Directory block header. + +*u*:: +Union of directory and unused entries. + +*leaf*:: +Hash values of the entries in this block. + +*tail*:: +Bookkeeping for the leaf entries. + +[source, c] +---- typedef struct xfs_dir2_data_hdr { __uint32_t magic; xfs_dir2_data_free_t bestfree[XFS_DIR2_DATA_FD_COUNT]; } xfs_dir2_data_hdr_t; +---- + +*magic*:: +Magic number for this directory block. + +*bestfree*:: +An array pointing to free regions in the directory block. + +[source, c] +---- typedef struct xfs_dir2_data_free { xfs_dir2_data_off_t offset; xfs_dir2_data_off_t length; } xfs_dir2_data_free_t; +---- + +*offset*:: +Block offset of a free block, in bytes. + +*length*:: +Length of the free block, in bytes. + +Space inside the directory block can be used for directory entries or unused +entries. This is signified via a union of the two types: + +[source, c] +----- typedef union { xfs_dir2_data_entry_t entry; xfs_dir2_data_unused_t unused; } xfs_dir2_data_union_t; +---- + +*entry*:: +A directory entry. + +*unused*:: +An unused entry. + +[source, c] +----- typedef struct xfs_dir2_data_entry { xfs_ino_t inumber; __uint8_t namelen; @@ -278,21 +370,74 @@ typedef struct xfs_dir2_data_entry { __uint8_t ftype; xfs_dir2_data_off_t tag; } xfs_dir2_data_entry_t; +---- + +*inumber*:: +The inode number that this entry points to. + +*namelen*:: +Length of the name, in bytes. + +*name*:: +The name associated with this entry. + +*ftype*:: +The type of the inode. This is used to avoid reading the inode while iterating +a directory. The +XFS_SB_VERSION2_FTYPE+ feature must be set, or this field +will not be present. + +*tag*:: +Starting offset of the entry, in bytes. This is used for directory iteration. + +[source, c] +----- typedef struct xfs_dir2_data_unused { __uint16_t freetag; /* 0xffff */ xfs_dir2_data_off_t length; xfs_dir2_data_off_t tag; } xfs_dir2_data_unused_t; +---- + +*freetag*:: +Magic number signifying that this is an unused entry. Must be 0xFFFF. + +*length*:: +Length of this unused entry, in bytes. + +*tag*:: +Starting offset of the entry, in bytes. + +[source, c] +----- typedef struct xfs_dir2_leaf_entry { xfs_dahash_t hashval; xfs_dir2_dataptr_t address; } xfs_dir2_leaf_entry_t; +---- + +*hashval*:: +Hash value of the name of the directory entry. This is used to speed up entry +lookups. + +*address*:: +Block offset of the entry, in eight byte units. + +[source, c] +----- typedef struct xfs_dir2_block_tail { __uint32_t count; __uint32_t stale; } xfs_dir2_block_tail_t; ---- +*count*:: +Number of leaf entries. + +*stale*:: +Number of free leaf entries. + +Following is a diagram of how these pieces fit together for a block directory. + .Block directory layout image::images/43.png[] @@ -550,6 +695,14 @@ typedef struct xfs_dir2_data { } xfs_dir2_data_t; ---- +*hdr*:: +Data block header. + +*u*:: +Union of directory and unused entries, exactly the same as in a block directory. + +// split lists + * The "leaf" extent uses the following structures: [source, c] @@ -560,16 +713,48 @@ typedef struct xfs_dir2_leaf { xfs_dir2_data_off_t bests[1]; xfs_dir2_leaf_tail_t tail; } xfs_dir2_leaf_t; +---- + +*hdr*:: +Directory leaf header. + +*ents*:: +Hash values of the entries in this block. + +*bests*:: +An array pointing to free regions in the directory block. + +*tail*:: +Bookkeeping for the leaf entries. + +[source, c] +---- typedef struct xfs_dir2_leaf_hdr { xfs_da_blkinfo_t info; __uint16_t count; __uint16_t stale; } xfs_dir2_leaf_hdr_t; +---- + +*info*:: +Leaf btree block header. + +*count*:: +Number of leaf entries. + +*stale*:: +Number of stale/zeroed leaf entries. + +[source, c] +---- typedef struct xfs_dir2_leaf_tail { __uint32_t bestcount; } xfs_dir2_leaf_tail_t; ---- +*bestcount*:: +Number of best free entries. + [[Directory_Attribute_Block_Header]] === Directory and Attribute Block Headers @@ -587,6 +772,20 @@ typedef struct xfs_da_blkinfo { } xfs_da_blkinfo_t; ---- +*forw*:: +Logical block offset of the previous B+tree block at this level. + +*back*:: +Logical block offset of the next B+tree block at this level. + +*magic*:: +Magic number for this directory/attribute block. + +*pad*:: +Padding to maintain alignment. + +// split lists + * The magic number of the leaf block is +XFS_DIR2_LEAF1_MAGIC+ (0xd2f1). * The size of the +ents+ array is specified by +hdr.count+. @@ -879,12 +1078,36 @@ typedef struct xfs_dir2_free_hdr { __int32_t nvalid; __int32_t nused; } xfs_dir2_free_hdr_t; +---- + +*magic*:: +The magic number of the free block, "XD2F" (0x0x58443246). + +*firstdb*:: +The starting directory block number for the bests array. + +*nvalid*:: +Number of elements in the bests array. + +*nused*:: +Number of valid elements in the bests array. + +[source, c] +---- typedef struct xfs_dir2_free { xfs_dir2_free_hdr_t hdr; xfs_dir2_data_off_t bests[1]; } xfs_dir2_free_t; ---- +*hdr*:: +Free block header. + +*bests*:: +An array specifying the best free counts in each directory data block. + +// split lists + * The location of the leaf blocks can be in any order, the only way to determine the appropriate is by the node block hash/before values. Given a hash to look up, you read the node's +btree+ array and first +hashval+ in the array that exceeds @@ -912,6 +1135,23 @@ typedef struct xfs_da_intnode { } xfs_da_intnode_t; ---- +*info*:: +Directory/attribute block info. The magic number is +XFS_DA_NODE_MAGIC+ +(0xfebe). + +*count*:: +Number of node entries in this block. + +*level*:: +The level of this block in the B+tree. + +*hashval*:: +The hash value of a particular record. + +*before*:: +The directory/attribute logical block containing all entries up to the +corresponding hash value. + * The freeindex's +bests+ array starts from the end of the block and grows to the start of the block. diff --git a/design/XFS_Filesystem_Structure/docinfo.xml b/design/XFS_Filesystem_Structure/docinfo.xml index 856c01d..32a502d 100644 --- a/design/XFS_Filesystem_Structure/docinfo.xml +++ b/design/XFS_Filesystem_Structure/docinfo.xml @@ -82,6 +82,7 @@ Miscellaneous fixes. + Add missing field definitions. diff --git a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc index 18a4568..2499f12 100644 --- a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc +++ b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc @@ -334,7 +334,16 @@ typedef struct xfs_attr_leaf_map { __be16 base; __be16 size; } xfs_attr_leaf_map_t; +---- + +*base*:: +Block offset of the free area, in bytes. + +*size*:: +Size of the free area, in bytes. +[source, c] +---- typedef struct xfs_attr_leaf_hdr { xfs_da_blkinfo_t info; __be16 count; @@ -344,27 +353,90 @@ typedef struct xfs_attr_leaf_hdr { __u8 pad1; xfs_attr_leaf_map_t freemap[3]; } xfs_attr_leaf_hdr_t; +---- + +*info*:: +Directory/attribute block header. + +*count*:: +Number of entries. + +*usedbytes*:: +Number of bytes used in the leaf block. +*firstused*:: +Block offset of the first entry in use, in bytes. + +*holes*:: +Set to 1 if block compaction is necessary. + +*pad1*:: +Padding to maintain alignment to 64-bit boundaries. + +[source, c] +----- typedef struct xfs_attr_leaf_entry { __be32 hashval; __be16 nameidx; __u8 flags; __u8 pad2; } xfs_attr_leaf_entry_t; +---- + +*hashval*:: +Hash value of the attribute name. + +*nameidx*:: +Block offset of the name entry, in bytes. + +*flags*:: +Attribute flags, as specified xref:Attribute_Flags[above]. + +*pad2*:: +Pads the structure to 64-bit boundaries. +[source, c] +---- typedef struct xfs_attr_leaf_name_local { __be16 valuelen; __u8 namelen; __u8 nameval[1]; } xfs_attr_leaf_name_local_t; +---- + +*valuelen*:: +Length of the value, in bytes. + +*namelen*:: +Length of the name, in bytes. +*nameval*:: +The name and the value. String values are not zero-terminated. + +[source, c] +---- typedef struct xfs_attr_leaf_name_remote { __be32 valueblk; __be32 valuelen; __u8 namelen; __u8 name[1]; } xfs_attr_leaf_name_remote_t; +---- + +*valueblk*:: +The logical block in the attribute map where the value is located. +*valuelen*:: +Length of the value, in bytes. + +*namelen*:: +Length of the name, in bytes. + +*nameval*:: +The name. String values are not zero-terminated. + +[source, c] +---- typedef struct xfs_attr_leafblock { xfs_attr_leaf_hdr_t hdr; xfs_attr_leaf_entry_t entries[1]; @@ -373,6 +445,20 @@ typedef struct xfs_attr_leafblock { } xfs_attr_leafblock_t; ---- +*hdr*:: +Attribute block header. + +*entries*:: +A variable-length array of attribute entries. + +*namelist*:: +A variable-length array of descriptors of local attributes. The location and +size of these entries is determined dynamically. + +*valuelist*:: +A variable-length array of descriptors of remote attributes. The location and +size of these entries is determined dynamically. + Each leaf header uses the magic number +XFS_ATTR_LEAF_MAGIC+ (0xfbee). The hash/index elements in the +entries[]+ array are packed from the top of the From darrick.wong@oracle.com Wed Nov 11 13:23:46 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6067F7F86 for ; Wed, 11 Nov 2015 13:23:46 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 51964304032 for ; Wed, 11 Nov 2015 11:23:46 -0800 (PST) X-ASG-Debug-ID: 1447269820-04cbb0242312cc90001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id jJKNN6qU6o3hcqO9 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:23:40 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJNC34025625 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:23:13 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABJNCBi022638 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:23:12 GMT Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABJNB7V012981; Wed, 11 Nov 2015 19:23:12 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:23:11 -0800 Subject: [PATCH 08/21] xfsdocs: fix various errors and missing bits in the text From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 08/21] xfsdocs: fix various errors and missing bits in the text To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:23:10 -0800 Message-ID: <20151111192310.14235.61423.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447269820 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Fix typos and grammatical errors in the text. Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 128 +++++++++++-------- .../XFS_Filesystem_Structure/data_extents.asciidoc | 64 +++++---- .../XFS_Filesystem_Structure/directories.asciidoc | 136 ++++++++++++-------- design/XFS_Filesystem_Structure/docinfo.xml | 16 ++ .../extended_attributes.asciidoc | 96 ++++++++------ .../internal_inodes.asciidoc | 33 +++-- .../XFS_Filesystem_Structure/ondisk_inode.asciidoc | 83 +++++++----- 7 files changed, 319 insertions(+), 237 deletions(-) diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index a86274c..680f90c 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -3,9 +3,8 @@ XFS filesystems are divided into a number of equally sized chunks called Allocation Groups. Each AG can almost be thought of as an individual filesystem -that maintains it's own space usage. Each AG can be up to one terabyte in size -(512 bytes * 2^31^), regardless of the underlying -device's sector size. +that maintains its own space usage. Each AG can be up to one terabyte in size +(512 bytes × 2^31^), regardless of the underlying device's sector size. Each AG has the following characteristics: @@ -14,15 +13,15 @@ Each AG has the following characteristics: * Inode allocation and tracking Having multiple AGs allows XFS to handle most operations in parallel without -degrading performance as the number of concurrent accessing increases. +degrading performance as the number of concurrent accesses increases. -The only global information maintained by the first AG (primary) is free spac e +The only global information maintained by the first AG (primary) is free space across the filesystem and total inode counts. If the +XFS_SB_VERSION2_LAZYSBCOUNTBIT+ flag is set in the superblock, these are only updated on-disk when the filesystem is cleanly unmounted (umount or shutdown). -Immediately after a mkfs.xfs, the primary AG has the following disk layout the -subsequent AGs do not have any inodes allocated: +Immediately after a +mkfs.xfs+, the primary AG has the following disk layout; +the subsequent AGs do not have any inodes allocated: .Allocation group layout image::images/6.png[] @@ -32,9 +31,10 @@ Each of these structures are expanded upon in the following sections. [[Superblocks]] == Superblocks -Each AG starts with a superblock. The first one is the primary superblock that -stores aggregate AG information. Secondary superblocks are only used by -xfs_repair when the primary superblock has been corrupted. +Each AG starts with a superblock. The first one, in AG 0, is the primary +superblock which stores aggregate AG information. Secondary superblocks are +only used by xfs_repair when the primary superblock has been corrupted. A +superblock is one sector in length. The superblock is defined by the following structure. The description of each field follows. @@ -93,7 +93,7 @@ struct xfs_sb }; ---- *sb_magicnum*:: -Identifies the filesystem. It's value is +XFS_SB_MAGIC = 0x58465342 "XFSB"+. +Identifies the filesystem. Its value is +XFS_SB_MAGIC = 0x58465342 "XFSB"+. *sb_blocksize*:: The size of a basic unit of space allocation in bytes. Typically, this is 4096 @@ -116,11 +116,14 @@ the UUID instead of device name. *sb_logstart*:: First block number for the journaling log if the log is internal (ie. not on a separate disk device). For an external log device, this will be zero (the log -will also start on the first block on the log device). +will also start on the first block on the log device). The identity of the log +devices is not recorded in the filesystem, but the UUIDs of the filesystem and +the log device are compared to prevent corruption. *sb_rootino*:: -Root inode number for the filesystem. Typically, this is 128 when using a -4KB block size. +Root inode number for the filesystem. Normally, the root inode is at the +start of the first possible inode chunk in AG 0. This is 128 when using a 4KB +block size. *sb_rbmino*:: Bitmap inode for real-time extents. @@ -147,9 +150,9 @@ Number of blocks for the journaling log. *sb_versionnum*:: Filesystem version number. This is a bitmask specifying the features enabled when creating the filesystem. Any disk checking tools or drivers that do not -recognize any set bits must not operate upon the filesystem. Most of the flagsi -indicate features introduced over time. The value must be 4 including the -following flags: +recognize any set bits must not operate upon the filesystem. Most of the flags +indicate features introduced over time. If the value of the lower nibble is 4, +the higher bits indicate feature flags as follows: .Version 4 Superblock version flags [options="header"] @@ -175,8 +178,8 @@ Set if the sb_features2 field in the superblock contains more flags. |===== *sb_sectsize*:: -Specifies the underlying disk sector size in bytes. Majority of the time, this -is 512 bytes. This determines the minimum I/O alignment including Direct I/O. +Specifies the underlying disk sector size in bytes. Typically this is 512 or +4096 bytes. This determines the minimum I/O alignment, especially for direct I/O. *sb_inodesize*:: Size of the inode in bytes. The default is 256 (2 inodes per standard sector) @@ -258,6 +261,13 @@ Quota flags. It can be a combination of the following flags: *sb_flags*:: Miscellaneous flags. +.Superblock flags +[options="header"] +|===== +| Flag | Description +| +XFS_SBF_READONLY+ | Only read-only mounts allowed. +|===== + *sb_shared_vn*:: Reserved and must be zero ("vn" stands for version number). @@ -300,17 +310,29 @@ primary superblock when the filesystem is cleanly unmounted. | +XFS_SB_VERSION2_ATTR2BIT+ | Extended attributes version 2. Making a filesystem with this optimises the inode -layout of extended attributes. +layout of extended attributes. See the section about +xref:Extended_Attribute_Versions[extended attribute versions] for more +information. | +XFS_SB_VERSION2_PARENTBIT+ | Parent pointers. All inodes must have an extended attribute that points back to its parent inode. The primary purpose for this information is in backup systems. + +| +XFS_SB_VERSION2_PROJID32BIT+ | +32-bit Project ID. Inodes can be associated with a project ID number, which +can be used to enforce disk space usage quotas for a particular group of +directories. This flag indicates that project IDs can be 32 bits in size. + +| +XFS_SB_VERSION2_FTYPE+ | +Directory file type. Each directory entry records the type of the inode to +which the entry points. This speeds up directory iteration by removing the +need to load every inode into memory. |===== === xfs_db Superblock Example -A filesystem is made on a single SATA disk with the following command: +A filesystem is made on a single disk with the following command: ---- # mkfs.xfs -i attr=2 -n size=16384 -f /dev/sda7 @@ -385,7 +407,7 @@ One B+tree tracks space by block number, the second by the size of the free space block. This scheme allows XFS to quickly find free space near a given block or of a given size. -All block numbers, indexes and counts are AG relative. +All block numbers, indexes, and counts are AG relative. [[AG_Free_Space_Block]] === AG Free Space Block @@ -414,8 +436,9 @@ struct xfs_agf { }; ---- -The rest of the bytes in the sector are zeroed. +XFS_BTNUM_AGF+ is set to 2, -index 0 for the count B+tree and index 1 for the size B+tree. +The rest of the bytes in the sector are zeroed. +XFS_BTNUM_AGF+ is set to 2: +index 0 for the free space B+tree indexed by block number; and index 1 for the +free space B+tree indexed by extent size. *agf_magicnum*:: Specifies the magic number for the AGF sector: "XAGF" (0x58414746). @@ -428,7 +451,7 @@ Specifies the AG number for the sector. *agf_length*:: Specifies the size of the AG in filesystem blocks. For all AGs except the last, -This must be equal to the superblock's +sb_agblocks+ value. For the last AG, +this must be equal to the superblock's +sb_agblocks+ value. For the last AG, this could be less than the +sb_agblocks+ value. It is this value that should be used to determine the size of the AG. @@ -459,14 +482,13 @@ Specifies the number of blocks of longest contiguous free space in the AG. Specifies the number of blocks used for the free space B+trees. This is only used if the +XFS_SB_VERSION2_LAZYSBCOUNTBIT+ bit is set in +sb_features2+. -[[AG_Free_Space_Btrees]] -=== AG Free Space B+trees +[[Short_Format_Btrees]] +=== Short Format B+trees -The two Free Space B+trees store a sorted array of block offset and block -counts in the leaves of the B+tree. The first B+tree is sorted by the offset, -the second by the count or size. - -The trees use the following header: +Each allocation group uses a ``short format'' B+tree to index various +information about the allocation group. The structure is called short format +because all block pointers are AG block numbers. The trees use the following +header: [source, c] ---- @@ -479,6 +501,13 @@ struct xfs_btree_sblock { }; ---- +[[AG_Free_Space_Btrees]] +=== AG Free Space B+trees + +The two Free Space B+trees store a sorted array of block offset and block +counts in the leaves of the B+tree. The first B+tree is sorted by the offset, +the second by the count or size. + Leaf nodes contain a sorted array of offset/count pairs which are also used for node keys: @@ -531,7 +560,7 @@ including inodes, data, directories and extended attributes. With a freshly made filesystem, 4 blocks are reserved immediately after the free space B+tree root blocks (blocks 4 to 7). As they are used up as the free space fragments, additional blocks will be reserved from the AG and added to the free -list array. +list array. This size may increase as features are added. As the free list array is located within a single sector, a typical device will have space for 128 elements in the array (512 bytes per sector, 4 bytes per AG @@ -545,8 +574,8 @@ values. The array is managed as a circular list. .AG Free List layout image::images/16.png[] -The presence of these reserved block guarantees that the free space B+trees can -be updated if any blocks are freed by extent changes in a full AG. +The presence of these reserved blocks guarantees that the free space B+trees +can be updated if any blocks are freed by extent changes in a full AG. ==== xfs_db AGF Example @@ -584,8 +613,8 @@ bno[0-127] = 0:4 1:5 2:6 3:7 4:83342 5:83343 6:83344 7:83345 8:83346 9:83347 26:80205 27:83344 ---- -The free space B+tree sorted by block offset, the root block is from the AGF's -+bnoroot+ value: +The root block of the free space B+tree sorted by block offset is found in the +AGF's +bnoroot+ value: ---- xfs_db> fsblock 7 @@ -602,11 +631,11 @@ ptrs[1-4] = 1:2 2:83347 3:6 4:4 ---- Blocks 2, 83347, 6 and 4 contain the leaves for the free space B+tree by -starting block. Block 2 would contain offsets 16 up to but not including 184586 +starting block. Block 2 would contain offsets 12 up to but not including 184586 while block 4 would have all offsets from 511629 to the end of the AG. -The free space B+tree sorted by block count, the root block is from the AGF's -+cntroot+ value: +The root block of the free space B+tree sorted by block count is found in the +AGF's +cntroot+ value: ---- xfs_db> fsblock 83343 @@ -642,7 +671,7 @@ recs[1-344] = [startblock,blockcount] 342:[513712,755] 343:[230317,258229] 344:[538795,3384327] ---- -The longest block count must be the same as the AGF's +longest+ value. +The longest block count (3384327) must be the same as the AGF's +longest+ value. [[AG_Inode_Management]] == AG Inode Management @@ -659,7 +688,7 @@ structures. Absolute inode numbers include the AG number in the high bits, above the bits used for the AG relative inode number. Absolute inode numbers are found in -xref:Directories[directory] entries. +xref:Directories[directory] entries and the superblock. .Inode number formats image::images/18.png[] @@ -713,10 +742,10 @@ Specifies the number of levels in the inode B+tree. Specifies the number of free inodes in the AG. *agi_newino*:: -Specifies AG relative inode number most recently allocated. +Specifies AG-relative inode number of the most recently allocated chunk. *agi_dirino*:: -Deprecated and not used, it's always set to NULL (-1). +Deprecated and not used, this is always set to NULL (-1). *agi_unlinked[64]*:: Hash table of unlinked (deleted) inodes that are still being referenced. Refer @@ -734,6 +763,8 @@ The B+tree header for the nodes and leaves use the +xfs_btree_sblock+ structure which is the same as the header used in the xref:AG_Free_Space_Btrees[AGF B+trees]. +The magic number of the inode B+tree is ``IABT'' (0x49414254). + Leaves contain an array of the following structure: [source,c] @@ -755,20 +786,15 @@ struct xfs_inobt_key { typedef __be32 xfs_inobt_ptr_t; ---- -For the leaf entries, +ir_startino+ specifies the starting inode number for the -chunk, +ir_freecount+ specifies the number of free entries in the chuck, and the -+ir_free+ is a 64 element bit array specifying which entries are free in the -chunk. - The following diagram illustrates a single level inode B+tree: -.Single Level inode b+tree +.Single Level inode B+tree image::images/20a.png[] And a 2-level inode B+tree: -.Multi-Level inode b+tree +.Multi-Level inode B+tree image::images/20b.png[] diff --git a/design/XFS_Filesystem_Structure/data_extents.asciidoc b/design/XFS_Filesystem_Structure/data_extents.asciidoc index 7850165..a09fcc2 100644 --- a/design/XFS_Filesystem_Structure/data_extents.asciidoc +++ b/design/XFS_Filesystem_Structure/data_extents.asciidoc @@ -1,18 +1,18 @@ [[Data_Extents]] = Data Extents -XFS allocates space for a file using extents: starting location and length. XFS -extents also specify the file's logical starting offset for a file. This allows -a files extent map to automatically support sparse files (i.e. "holes" in the -file). A flag is also used to specify if the extent has been preallocated and -not yet been written to (unwritten extent). +XFS manages space using extents, which are defined as a starting location and +length. A fork in an XFS inode maps a logical offset to a space extent. This +enables a file's extent map to support sparse files (i.e. "holes" in the file). +A flag is also used to specify if the extent has been preallocated but has not +yet been written (unwritten extent). A file can have more than one extent if one chunk of contiguous disk space is not available for the file. As a file grows, the XFS space allocator will -attempt to keep space contiguous and merge extents. If more than one file is +attempt to keep space contiguous and to merge extents. If more than one file is being allocated space in the same AG at the same time, multiple extents for the -files will occur as the extents get interleaved. The effect of this can vary -depending on the extent allocator used in the XFS driver. +files will occur as the extent allocations interleave. The effect of this can +vary depending on the extent allocator used in the XFS driver. An extent is 128 bits in size and uses the following packed layout: @@ -48,15 +48,16 @@ typedef enum { Some other points about extents: -* The +xfs_bmbt_rec_32_t+ and +xfs_bmbt_rec_64_t+ structures are effectively +* The +xfs_bmbt_rec_32_t+ and +xfs_bmbt_rec_64_t+ structures were effectively the same as +xfs_bmbt_rec_t+, just different representations of the same 128 -bits in on-disk big endian format. +bits in on-disk big endian format. +xfs_bmbt_rec_32_t+ was removed and ++xfs_bmbt_rec_64_t+ renamed to +xfs_bmbt_rec_t+ some time ago. * When a file is created and written to, XFS will endeavour to keep the extents within the same AG as the inode. It may use a different AG if the AG is busy or there is no space left in it. -* If a file is zero bytes long, it will have no extents, +di_nblocks+ and +* If a file is zero bytes long, it will have no extents and +di_nblocks+ and +di_nexents+ will be zero. Any file with data will have at least one extent, and each extent can use from 1 to over 2 million blocks (2^21^) on the filesystem. For a default 4KB block size filesystem, a single extent can be up to 8GB in @@ -72,20 +73,20 @@ efficiently. [[Extent_List]] == Extent List -Local extents are where the entire extent array is stored within the inode's -data fork itself. This is the most optimal in terms of speed and resource -consumption. The trade-off is the file can only have a few extents before the -inode runs out of space. +If the entire extent list is short enough to fit within the inode's fork +region, we say that the fork is in ``extent list'' format. This is the most +optimal in terms of speed and resource consumption. The trade-off is the file +can only have a few extents before the inode runs out of space. -The "data fork" of the inode contains an array of extents, the size of the array -determined by the inode's +di_nextents+ value. +The data fork of the inode contains an array of extents; the size of the array +is determined by the inode's +di_nextents+ value. .Inode data fork extent layout image::images/32.png[] The number of extents that can fit in the inode depends on the inode size and +di_forkoff+. For a default 256 byte inode with no extended attributes, a file -can up to 19 extents with this format. Beyond this, extents have to use the +can have up to 9 extents with this format. Beyond this, extents have to use the B+tree format. === xfs_db Inode Data Fork Extents Example @@ -129,7 +130,7 @@ u.bmx[0-2] = [startoff,startblock,blockcount,extentflag] 2:[4050,35481,2025,0] ---- -Raw disk version of the inode with the third extent highlighted (+di_u+ always +Raw disk version of the inode with the third extent highlighted (+di_u+ starts at offset 0x64): [subs="quotes"] @@ -193,9 +194,9 @@ u.bmx[0-1] = [startoff,startblock,blockcount,extentflag] [[Btree_Extent_List]] == B+tree Extent List -Beyond the simple extent array, to efficiently manage large extent maps, XFS -uses B+trees. The root node of the B+tree is stored in the inode's data fork. -All block pointers for extent B+trees are 64-bit absolute block numbers. +To manage extent maps that cannot fit in the inode fork area, XFS uses long +format B+trees. The root node of the B+tree is stored in the inode's data +fork. All block pointers for extent B+trees are 64-bit absolute block numbers. For a single level B+tree, the root node points to the B+tree's leaves. Each leaf occupies one filesystem block and contains a header and an array of extents @@ -204,11 +205,12 @@ forward) block pointers to adjacent leaves. For a standard 4KB filesystem block, a leaf can contain up to 254 extents before a B+tree rebalance is triggered. For a multi-level B+tree, the root node points to other B+tree nodes which -eventually point to the extent leaves. B+tree keys are based on the file's -offset. The nodes at each level in the B+tree point to the adjacent nodes. +eventually point to the extent leaves. B+tree keys are based on the file's +offset and have pointers to the next level down. Nodes at each level in the +B+tree also have pointers to the adjacent nodes. The base B+tree node is used for extents, directories and extended attributes. -The structures used for inode's B+tree root are: +The structures used for an inode's B+tree root are: [source, c] ---- @@ -222,15 +224,18 @@ struct xfs_bmbt_key { typedef xfs_fsblock_t xfs_bmbt_ptr_t, xfs_bmdr_ptr_t; ---- -* On disk, the B+tree node starts with the +xfs_bmbr_block_t+ header followed by +* On disk, the B+tree node starts with the +xfs_bmdr_block_t+ header followed by an array of +xfs_bmbt_key_t+ values and then an array of +xfs_bmbt_ptr_t+ values. The size of both arrays is specified by the header's +bb_numrecs+ value. -* The root node in the inode can only contain up to 19 key/pointer pairs for a +* The root node in the inode can only contain up to 9 key/pointer pairs for a standard 256 byte inode before a new level of nodes is added between the root and the leaves. This will be less if +di_forkoff+ is not zero (i.e. attributes are in use on the inode). +[[Long_Format_Btrees]] +== Long Format B+trees + The subsequent nodes and leaves of the B+tree use the +xfs_btree_lblock+ declaration: @@ -253,10 +258,7 @@ a 4096 byte filesystem block). * For leaves, an array of +xfs_bmbt_rec+ extents follow the +xfs_btree_lblock+ header. -* Nodes and leaves use the same value for +bb_magic+: - -[source, c] -#define XFS_BMAP_MAGIC 0x424d4150 /* 'BMAP' */ +* Nodes and leaves use the same value for +bb_magic+. * The +bb_level+ value determines if the node is an intermediate node or a leaf. Leaves have a +bb_level+ of zero, nodes are one or greater. diff --git a/design/XFS_Filesystem_Structure/directories.asciidoc b/design/XFS_Filesystem_Structure/directories.asciidoc index 7d84117..3521749 100644 --- a/design/XFS_Filesystem_Structure/directories.asciidoc +++ b/design/XFS_Filesystem_Structure/directories.asciidoc @@ -9,17 +9,18 @@ The term "block" in this section will refer to directory blocks, not filesystem blocks unless otherwise specified. The size of a "directory block" is defined by the xref:Superblocks[superblock's] -+sb_dirblklog+ value. The size in bytes = +sb_blocksize+ * 2^sb_dirblklog^. ++sb_dirblklog+ value. The size in bytes = +sb_blocksize+ × 2^sb_dirblklog^. For example, if +sb_blocksize+ = 4096 and +sb_dirblklog+ = 2, the directory block size is 16384 bytes. Directory blocks are always allocated in multiples based on +sb_dirblklog+. Directory blocks cannot be more that 65536 bytes in size. All directory entries contain the following "data": -* Entry's name (counted string consisting of a single byte +namelen+ followed by -+name+ consisting of an array of 8-bit chars without a NULL terminator). +* The entry's name (counted string consisting of a single byte +namelen+ +followed by +name+ consisting of an array of 8-bit chars without a NULL +terminator). -* Entry's absolute inode number (), which are +* The entry's absolute xref:Inode_Numbers[inode number], which are always 64 bits (8 bytes) in size except a special case for shortform directories. @@ -51,18 +52,19 @@ typedef __uint32_t xfs_dir2_dataptr_t; * Directory entries are stored within the inode. -* Only data stored is the name, inode # and offset, no "leaf" or "freespace index" -information is required as an inode can only store a few entries. +* The only data stored is the name, inode number, and offset. No "leaf" or +"freespace index" information is required as an inode can only store a few +entries. * "." is not stored (as it's in the inode itself), and ".." is a dedicated +parent+ field in the header. -* The number of directories that can be stored in an inode depends on the inode -size (), the number of entries, the length of the -entry names and extended attribute data. +* The number of directories that can be stored in an inode depends on the +xref:On-disk_Inode[inode] size, the number of entries, the length of the entry +names, and extended attribute data. -* Once the number of entries exceed the space available in the inode, the format -is converted to a "Block Directory". +* Once the number of entries exceeds the space available in the inode, the +format is converted to a xref:Block_Directories[block directory]. * Shortform directory data is packed as tightly as possible on the disk with the remaining space zeroed: @@ -82,6 +84,7 @@ typedef struct xfs_dir2_sf_entry { __uint8_t namelen; xfs_dir2_sf_off_t offset; __uint8_t name[1]; + __uint8_t ftype; xfs_dir2_inou_t inumber; } xfs_dir2_sf_entry_t; ---- @@ -94,8 +97,9 @@ numbers for the directory fit in 4 bytes (32 bits) or not. If all inode numbers fit in 4 bytes, the header's +count+ value specifies the number of entries in the directory and +i8count+ will be zero. If any inode number exceeds 4 bytes, all inode numbers will be 8 bytes in size and the header's +i8count+ value -specifies the number of entries and count will be zero. The following union -covers the shortform inode number structure: +specifies the number of entries requiring larger inodes. +i4count+ is still +the number of entries. The following union covers the shortform inode number +structure: [source, c] ---- @@ -222,7 +226,7 @@ b0: 72 61 6d 65 30 30 30 30 30 33 2e 74 73 74 01 80 rame000003.tst.. c0: 00 84 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ ---- -TODO: 8-byte inode number example +TODO: 8-byte inode number example [[Block_Directories]] @@ -233,12 +237,10 @@ data is moved into a new single directory block outside the inode. The inode's format is changed from "local" to "extent". Following is a list of points about block directories. - - * All directory data is stored within the one directory block, including "." and ".." entries which are mandatory. -* The block also contains "leaf" and "freespace index " information. +* The block also contains "leaf" and "freespace index" information. * The location of the block is defined by the inode's in-core xref:Extent_List[extent list]: the +di_u.u_bmx[0]+ value. The file offset in @@ -273,6 +275,7 @@ typedef struct xfs_dir2_data_entry { xfs_ino_t inumber; __uint8_t namelen; __uint8_t name[1]; + __uint8_t ftype; xfs_dir2_data_off_t tag; } xfs_dir2_data_entry_t; typedef struct xfs_dir2_data_unused { @@ -293,10 +296,12 @@ typedef struct xfs_dir2_block_tail { .Block directory layout image::images/43.png[] +* The magic number in the header is "XD2B" (0x58443242). + * The +tag+ in the +xfs_dir2_data_entry_t+ structure stores its offset from the start of the block. -* Start of a free space region is marked with the +xfs_dir2_data_unused_t+ +* The start of a free space region is marked with the +xfs_dir2_data_unused_t+ structure where the +freetag+ is +0xffff+. The +freetag+ and +length+ overwrites the +inumber+ for an entry. The +tag+ is located at +length - sizeof(tag)+ from the start of the +unused+ entry on-disk. @@ -321,8 +326,8 @@ structure, contains an array of hash/address pairs for quickly looking up a name by a hash value. Hash values are covered by the introduction to directories. The +address+ on-disk is the offset into the block divided by 8 (+XFS_DIR2_DATA_ALIGN+). Hash/address pairs are stored on disk to optimise -lookup speed for large directories. If they were not stored, the hashes have to -be calculated for all entries each time a lookup occurs in a directory. +lookup speed for large directories. If they were not stored, the hashes would +have to be calculated for all entries each time a lookup occurs in a directory. === xfs_db Block Directory Example @@ -529,9 +534,12 @@ allocate a new block for the leaf and freespace index information. * The "leaf" block has a special offset defined by +XFS_DIR2_LEAF_OFFSET+. Currently, this is 32GB and in the extent view, a block offset of -32GB/sb_blocksize. On a 4KB block filesystem, this is 0x800000 (8388608 +32GB / +sb_blocksize+. On a 4KB block filesystem, this is 0x800000 (8388608 decimal). +* Blocks with directory entries ("data" extents) have the magic number "X2D2" +(0x58443244). + * The "data" extents have a new header (no "leaf" data): [source, c] @@ -562,9 +570,12 @@ typedef struct xfs_dir2_leaf_tail { } xfs_dir2_leaf_tail_t; ---- -* The leaves use the +xfs_da_blkinfo_t+ filesystem block header. This header is -used for directory and xref:Extended_Attributes[extended attribute] leaves and -B+tree nodes: +[[Directory_Attribute_Block_Header]] +=== Directory and Attribute Block Headers + +* Leaf nodes in directories and xref:Extended_Attributes[extended attributes] +use the +xfs_da_blkinfo_t+ filesystem block header. The structure appears as +follows: [source, c] ---- @@ -576,11 +587,13 @@ typedef struct xfs_da_blkinfo { } xfs_da_blkinfo_t; ---- +* The magic number of the leaf block is +XFS_DIR2_LEAF1_MAGIC+ (0xd2f1). + * The size of the +ents+ array is specified by +hdr.count+. -* The size of the bests array is specified by the tail.bestcount which is also the -number of "data" blocks for  the directory. The bests array maintains each data -block's +bestfree[0].length+ value. +* The size of the +bests+ array is specified by the +tail.bestcount+, which is +also the number of "data" blocks for  the directory. The bests array maintains +each data block's +bestfree[0].length+ value. .Leaf directory free entry detail image::images/48.png[] @@ -588,7 +601,7 @@ image::images/48.png[] === xfs_db Leaf Directory Example For this example, a directory was created with 256 entries (frame000000.tst to -frame000255.tst) and then deleted some files (frame00005*, frame00018* and +frame000255.tst). Some files were deleted (frame00005*, frame00018* and frame000240.tst) to show free list characteristics. ---- @@ -840,15 +853,19 @@ each "data" block. This is not possible with more than one leaf. * The "data" blocks stay the same as leaf directories. -* The "leaf" blocks eventually change into a B+tree with the generic B+tree header -pointing to directory "leaves" as described in Leaf Directories. The top-level -blocks are called "nodes". It can exist in a state where there is still a single -leaf block before it's split. Interpretation of the node vs. leaf blocks has to -be performed by inspecting the magic value in the header. The combined -leaf/freeindex blocks has a magic value of +XFS_DIR2_LEAF1_MAGIC (0xd2f1)+, a -node directory's leaf/leaves have a magic value of +XFS_DIR2_LEAFN_MAGIC -(0xd2ff)+ and intermediate nodes have a magic value of +XFS_DA_NODE_MAGIC -(0xfebe)+. +* After the "freeindex" data moves to its own block, it is possible for the +leaf data to fit within a single leaf block. This single leaf block has a +magic number of +XFS_DIR2_LEAFN_MAGIC+ (0xd2ff). + +* The "leaf" blocks eventually change into a B+tree with the generic B+tree +header pointing to directory "leaves" as described in +xref:Leaf_Directories[Leaf Directories]. Blocks with leaf data still have the ++LEAFN_MAGIC+ magic number as outlined above. The top-level tree blocks are +called "nodes" and have a magic number of +XFS_DA_NODE_MAGIC+ (0xfebe). + +* Distinguishing between a combined leaf/freeindex block (+LEAF1_MAGIC+), a +leaf-only block (+LEAFN_MAGIC+), and a btree node block (+NODE_MAGIC+) can only +be done by examining the magic number. * The new "freeindex" block(s) only contains the bests for each data block. @@ -869,11 +886,17 @@ typedef struct xfs_dir2_free { ---- * The location of the leaf blocks can be in any order, the only way to determine -the appropriate is by the node block hash/before values. Given a hash to lookup, +the appropriate is by the node block hash/before values. Given a hash to look up, you read the node's +btree+ array and first +hashval+ in the array that exceeds the given hash and it can then be found in the block pointed to by the +before+ value. +[[Directory_Attribute_Internal_Node]] +=== Directory and Attribute Internal Nodes + +The hashing B+tree of a directory or an extended attribute fork uses nodes with +the following format: + [source, c] ---- typedef struct xfs_da_intnode { @@ -901,9 +924,9 @@ directory to have a hole at the start. * The freeindex's +hdr.nvalid+ should always be the same as the number of allocated data directory blocks containing name/inode data and will always be -less than or equal to +hdr.nused. hdr.nused+ should be the same as the index of -the last data directory block plus one (i.e. when the last data block is freed, -+nused+ and +nvalid+ are decremented). +less than or equal to +hdr.nused+. The value of +hdr.nused+ should be the same +as the index of the last data directory block plus one (i.e. when the last data +block is freed, +nused+ and +nvalid+ are decremented). .Node directory layout image::images/54.png[] @@ -940,9 +963,10 @@ u.bmx[0-7] = [startoff,startblock,blockcount,extentflag] 0:[0,7368,4,0] As can already be observed, all extents are allocated is multiples of 4 blocks. -Blocks 0 to 19 (16+4-1) are used for the data. Looking at blocks 16-19, it can -seen that it's the same as the single-leaf format, except the +length+ values -are a lot larger to accommodate the increased directory block size: +Blocks 0 to 19 (16+4-1) are used for directory data blocks. Looking at blocks +16-19, we can seen that it's the same as the single-leaf format, except the ++length+ values are a lot larger to accommodate the increased directory block +size: ---- xfs_db> dblock 16 @@ -994,11 +1018,11 @@ nhdr.level = 1 nbtree[0-1] = [hashval,before] 0:[0xa3a440ac,8388616] 1:[0xf3a440bc,8388612] ---- -The following leaf blocks have been allocated once as XFS knows it needs at two -blocks when allocating a B+tree, so the length is 8 fsblocks. For all hashes -< 0xa3a440ac, they are located in the directory offset 8388616 and hashes -below 0xf3a440bc are in offset 8388612. Hashes above f3a440bc don't exist in -this directory. +The two following leaf blocks were allocated as part of the directory's +conversion to node format. All hashes less than 0xa3a440ac are located at +directory offset 8,388,616, and hashes less than 0xf3a440bc are located at +directory offset 8,388,612. Hashes greater or equal to 0xf3a440bc don't exist +in this directory. ---- xfs_db> dblock 8388616 @@ -1075,8 +1099,7 @@ fbests[0-4] = 0:0x10 1:0x10 2:0x10 3:0x10 4:0x3f50 Like the Leaf Directory, each of the +fbests+ values correspond to each data block's +bestfree[0].length+ value. -The raw disk layout, old data is not cleared after the array. The fbests array -is highlighted: +The +fbests+ array is highlighted in a raw block dump: [subs="quotes"] ---- @@ -1095,15 +1118,13 @@ TODO: Example with a hole in the middle When the extent map in an inode grows beyond the inode's space, the inode format is changed to a "btree". The inode contains a filesystem block point to the B+tree extent map for the directory's blocks. The B+tree extents contain the -extent map for the "data", "node", "leaf" and "freeindex" information as +extent map for the "data", "node", "leaf", and "freeindex" information as described in Node Directories. Refer to the previous section on B+tree xref:Btree_Extent_List[Data Extents] for more information on XFS B+tree extents. -The following situations and changes can apply over Node Directories, and apply -here as inode extents generally cannot contain the number of directory blocks -that B+trees can handle: +The following properties apply to both node and B+tree directories: * The node/leaf trees can be more than one level deep. @@ -1219,8 +1240,9 @@ nbtree[0-318] = [hashval,before] 0:[0x70b14711,8388919] ... ---- The leaves at each the end of a node always point to the end leaves in adjacent -nodes. Directory block 8388928 forward pointer is to block 8388919, and vice -versa as highlighted in the following example: +nodes. Directory block 8388928 has a forward pointer to block 8388919 and block +8388919 has a previous pointer to block 8388928, as highlighted in the +following example: [subs="quotes"] ---- diff --git a/design/XFS_Filesystem_Structure/docinfo.xml b/design/XFS_Filesystem_Structure/docinfo.xml index cb5ffe7..856c01d 100644 --- a/design/XFS_Filesystem_Structure/docinfo.xml +++ b/design/XFS_Filesystem_Structure/docinfo.xml @@ -1,7 +1,9 @@ 3rd Edition + @@ -69,4 +71,18 @@ + + 3 + October 2015 + + Darrick + Wong + + + + + Miscellaneous fixes. + + + diff --git a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc index 747217c..18a4568 100644 --- a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc +++ b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc @@ -1,20 +1,20 @@ [[Extended_Attributes]] = Extended Attributes -Extended attributes implement the ability for a user to attach name:value pairs -to inodes within the XFS filesystem. They could be used to store +Extended attributes enable users and administrators to attach (name: value) +pairs to inodes within the XFS filesystem. They could be used to store meta-information about the file. -The attribute names can be up to 256 bytes in length, terminated by the first 0 +Attribute names can be up to 256 bytes in length, terminated by the first 0 byte. The intent is that they be printable ASCII (or other character set) names -for the attribute. The values can be up to 64KB of arbitrary binary data. Some -XFS internal attributes (eg. parent pointers) use non-printable names for the -attribute. +for the attribute. The values can contain up to 64KB of arbitrary binary data. +Some XFS internal attributes (eg. parent pointers) use non-printable names for +the attribute. Access Control Lists (ACLs) and Data Migration Facility (DMF) use extended attributes to store their associated metadata with an inode. -XFS uses two disjoint attribute name spaces associated with every inode. They +XFS uses two disjoint attribute name spaces associated with every inode. These are the root and user address spaces. The root address space is accessible only to the superuser, and then only by specifying a flag argument to the function call. Other users will not see or be able to modify attributes in the root @@ -27,15 +27,10 @@ To set or delete extended attributes, use the +setfattr+ command. ACLs control should use the +getfacl+ and +setfacl+ commands. XFS attributes supports three namespaces: "user", "trusted" (or "root" using -IRIX terminology) and "secure". +IRIX terminology), and "secure". -The location of the attribute fork in the inode's literal area is specified by -the +di_forkoff+ value in the inode's core. If this value is zero, the inode -does not contain any extended attributes. Non-zero, the byte offset into the -literal area = +di_forkoff * 8+, which also determines the 2048 byte maximum -size for an inode. Attributes must be allocated on a 64-bit boundary on the disk -except shortform attributes (they are tightly packed). To determine the offset -into the inode itself, add 100 (0x64) to +di_forkoff * 8+. +See the section about xref:Extended_Attribute_Versions[extended attributes] in +the inode for instructions on how to calculate the location of the attributes. The following four sections describe each of the on-disk formats. @@ -45,7 +40,7 @@ The following four sections describe each of the on-disk formats. When the all extended attributes can fit within the inode's attribute fork, the inode's +di_aformat+ is set to "local" and the attributes are stored in the -inode's literal area starting at offset +di_forkoff * 8+. +inode's literal area starting at offset +di_forkoff × 8+. Shortform attributes use the following structures: @@ -67,28 +62,39 @@ typedef struct xfs_attr_sf_hdr xfs_attr_sf_hdr_t; typedef struct xfs_attr_sf_entry xfs_attr_sf_entry_t; ---- -.Short form attribute layout -image::images/64.png[] - +*totsize*:: +Total size of the attribute structure in bytes. -* +namelen+ and +valuelen+ specify the size of the two byte arrays containing the -name and value pairs. +valuelen+ is zero for extended attributes with no value. +*count*:: +The number of entries that can be found in this structure. -* +nameval[]+ is a single array where it's size is the sum of +namelen+ and -+valuelen+. The names and values are not null terminated on-disk. The value -immediately follows the name in the array. +*namelen* and *valuelen*:: +These values specify the size of the two byte arrays containing the name and +value pairs. +valuelen+ is zero for extended attributes with no value. -* +flags+ specifies the namespace for the attribute (0 = "user"): +*nameval[]*:: +A single array whose size is the sum of +namelen+ and +valuelen+. The names and +values are not null terminated on-disk. The value immediately follows the name +in the array. +[[Attribute_Flags]] +*flags*:: +A combination of the following: .Attribute Namespaces [options="header"] |===== | Flag | Description +| 0 | The attribute's namespace is "user". | +XFS_ATTR_ROOT+ | The attribute's namespace is "trusted". | +XFS_ATTR_SECURE+ | The attribute's namespace is "secure". +| +XFS_ATTR_INCOMPLETE+ | This attribute is being modified. +| +XFS_ATTR_LOCAL+ | The attribute value is contained within this block. |===== +.Short form attribute layout +image::images/64.png[] + === xfs_db Short Form Attribute Example A file is created and two attributes are set: @@ -315,8 +321,9 @@ The first part of the "leaf" contains an array of fixed size hash/index pairs with the flags stored as well. The remaining part of the leaf block contains the array name/value pairs, where each element varies in length. -Each leaf is based on the +xfs_da_blkinfo_t+ block header declared in Leaf -Directories. The structure encapsulating all other structures in the +Each leaf is based on the +xfs_da_blkinfo_t+ block header declared in the +section about xref:Directory_Attribute_Block_Header[directories]. The structure +encapsulating all other structures in the attribute block is +xfs_attr_leafblock_t+. The structures involved are: @@ -365,18 +372,14 @@ typedef struct xfs_attr_leafblock { xfs_attr_leaf_name_remote_t valuelist; } xfs_attr_leafblock_t; ---- - - - Each leaf header uses the following magic number: -[source, c] -#define XFS_ATTR_LEAF_MAGIC 0xfbee +Each leaf header uses the magic number +XFS_ATTR_LEAF_MAGIC+ (0xfbee). The hash/index elements in the +entries[]+ array are packed from the top of the block. Name/values grow from the bottom but are not packed. The freemap contains run-length-encoded entries for the free bytes after the +entries[]+ array, but only the three largest runs are stored (smaller runs are dropped). When the -+freemap+ doesn't show enough space for an allocation, name/value area is ++freemap+ doesn't show enough space for an allocation, the name/value area is compacted and allocation is tried again. If there still isn't enough space, then the block is split. The name/value structures (both local and remote versions) must be 32-bit aligned. @@ -400,7 +403,7 @@ lookup, the actual name string must be compared. An "incomplete" bit is also used for attribute flags. It shows that an attribute is in the middle of being created and should not be shown to the user if we crash during the time that the bit is set. The bit is cleared when attribute -has finished being setup. This is done because some large attributes cannot +has finished being set up. This is done because some large attributes cannot be created inside a single transaction. === xfs_db Leaf Attribute Example @@ -529,15 +532,18 @@ When the number of attributes exceeds the space that can fit in one filesystem block (ie. hash, flag, name and local values), the first attribute block becomes the root of a B+tree where the leaves contain the hash/name/value information that was stored in a single leaf block. The inode's attribute format itself -remains extent based. The nodes use the +xfs_da_intnode_t+ structure introduced -in Node Directories. - -The location of the attribute leaf blocks can be in any order, the only way to -determine the appropriate is by the node block hash/before values. Given a hash -to lookup, you read the node's btree array and first +hashval+ in the array that -exceeds the given hash and it can then be found in the block pointed to by the +remains extent based. The nodes use the +xfs_da_intnode_t+ or ++xfs_da3_intnode_t+ structures introduced in the section about +xref:Directory_Attribute_Internal_Node[directories]. + +The location of the attribute leaf blocks can be in any order. The only way to +find an attribute is by walking the node block hash/before values. Given a hash +to look up, search the node's btree array for the first +hashval+ in the array +that exceeds the given hash. The entry is in the block pointed to by the +before+ value. +Each attribute node block has a magic number of +XFS_DA_NODE_MAGIC+ (0xfebe). + .Node attribute layout image::images/72.png[] @@ -679,11 +685,11 @@ When the attribute's extent map in an inode grows beyond the available space, the inode's attribute format is changed to a "btree". The inode contains root node of the extent B+tree which then address the leaves that contains the extent arrays for the attribute data. The attribute data itself in the allocated -filesystem blocks use the same layout and structures as described in Node -Attributes. +filesystem blocks use the same layout and structures as described in +xref:Node_Attributes[Node Attributes]. -Refer to the previous section on B+tree Data Extents for more information on XFS -B+tree extents. +Refer to the previous section on xref:Btree_Extent_List[B+tree Data Extents] for +more information on XFS B+tree extents. === xfs_db B+tree Attribute Example diff --git a/design/XFS_Filesystem_Structure/internal_inodes.asciidoc b/design/XFS_Filesystem_Structure/internal_inodes.asciidoc index b69bea2..a926857 100644 --- a/design/XFS_Filesystem_Structure/internal_inodes.asciidoc +++ b/design/XFS_Filesystem_Structure/internal_inodes.asciidoc @@ -28,8 +28,9 @@ multiplied by the size of +xfs_dqblk_t+ (136 bytes). .Quota inode layout image::images/76.png[] -Quota information stored in the two inodes (in data extents) are an array of the -+xfs_dqblk+ structure where there is one instance for each ID in the system: +Quota information is stored in the data extents of the two reserved quota +inodes as an array of the +xfs_dqblk+ structures, where there is one array +element for each ID in the system: [source, c] ---- @@ -67,7 +68,7 @@ Specifies the signature where these two bytes are 0x4451 (+XFS_DQUOT_MAGIC+), or "DQ" in ASCII. *d_version*:: -Specifies the structure version, currently this is one (+XFS_DQUOT_VERSION+). +The structure version, currently this is 1 (+XFS_DQUOT_VERSION+). *d_flags*:: Specifies which type of ID the structure applies to: @@ -84,33 +85,33 @@ The ID for the quota structure. This will be a uid, gid or projid based on the value of +d_flags+. *d_blk_hardlimit*:: -Specifies the hard limit for the number of filesystem blocks the ID can own. The +The hard limit for the number of filesystem blocks the ID can own. The ID will not be able to use more space than this limit. If it is attempted, +ENOSPC+ will be returned. *d_blk_softlimit*:: -Specifies the soft limit for the number of filesystem blocks the ID can own. +The soft limit for the number of filesystem blocks the ID can own. The ID can temporarily use more space than by +d_blk_softlimit+ up to +d_blk_hardlimit+. If the space is not freed by the time limit specified by ID zero's +d_btimer+ value, the ID will be denied more space until the total blocks owned goes below +d_blk_softlimit+. *d_ino_hardlimit*:: -Specifies the hard limit for the number of inodes the ID can own. The ID will +The hard limit for the number of inodes the ID can own. The ID will not be able to create or own any more inodes if +d_icount+ reaches this value. *d_ino_softlimit*:: -Specifies the soft limit for the number of inodes the ID can own. The ID can -temporarily create or own more inodes than specified by d_ino_softlimit up to -d_ino_hardlimit. If the inode count is not reduced by the time limit specified -by ID zero's d_itimer value, the ID will be denied from creating or owning more -inodes until the count goes below d_ino_softlimit. +The soft limit for the number of inodes the ID can own. The ID can +temporarily create or own more inodes than specified by +d_ino_softlimit+ up to ++d_ino_hardlimit+. If the inode count is not reduced by the time limit specified +by ID zero's +d_itimer+ value, the ID will be denied from creating or owning more +inodes until the count goes below +d_ino_softlimit+. *d_bcount*:: -Specifies how many filesystem blocks are actually owned by the ID. +How many filesystem blocks are actually owned by the ID. *d_icount*:: -Specifies how many inodes are actually owned by the ID. +How many inodes are actually owned by the ID. *d_itimer*:: Specifies the time when the ID's +d_icount+ exceeded +d_ino_softlimit+. The soft @@ -130,18 +131,18 @@ is reset back to zero. Specifies how many times a warning has been issued. Currently not used. *d_rtb_hardlimit*:: -Specifies the hard limit for the number of real-time blocks the ID can own. The +The hard limit for the number of real-time blocks the ID can own. The ID cannot own more space on the real-time subvolume beyond this limit. *d_rtb_softlimit*:: -Specifies the soft limit for the number of real-time blocks the ID can own. The +The soft limit for the number of real-time blocks the ID can own. The ID can temporarily own more space than specified by +d_rtb_softlimit+ up to +d_rtb_hardlimit+. If +d_rtbcount+ is not reduced by the time limit specified by ID zero's +d_rtbtimer value+, the ID will be denied from owning more space until the count goes below +d_rtb_softlimit+. *d_rtbcount*:: -Specifies how many real-time blocks are currently owned by the ID. +How many real-time blocks are currently owned by the ID. *d_rtbtimer*:: Specifies the time when the ID's +d_rtbcount+ exceeded +d_rtb_softlimit+. The diff --git a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc index 7262178..a887f8e 100644 --- a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc +++ b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc @@ -1,8 +1,8 @@ [[On-disk_Inode]] = On-disk Inode -All files, directories and links are stored on disk with inodes and descend from -the root inode with it's number defined in the xref:Superblocks[superblock]. The +All files, directories, and links are stored on disk with inodes and descend from +the root inode with its number defined in the xref:Superblocks[superblock]. The previous section on xref:AG_Inode_Management[AG Inode Management] describes the allocation and management of inodes on disk. This section describes the contents of inodes themselves. @@ -12,10 +12,10 @@ An inode is divided into 3 parts: .On-disk inode sections image::images/23.png[] -* The core contains what the inode represents, stat data and information +* The core contains what the inode represents, stat data, and information describing the data and attribute forks. -* The +di_u+ "data fork" contains normal data related to the inode. It's contents +* The +di_u+ "data fork" contains normal data related to the inode. Its contents depends on the file type specified by +di_core.di_mode+ (eg. regular file, directory, link, etc) and how much information is contained in the file which determined by +di_core.di_format+. The following union to represent this data is @@ -34,7 +34,7 @@ union { } di_u; ---- -* The di_a "attribute fork" contains extended attributes. Its layout is +* The +di_a+ "attribute fork" contains extended attributes. Its layout is determined by the +di_core.di_aformat+ value. Its representation is declared as follows: @@ -82,7 +82,8 @@ struct xfs_dinode_core { __uint32_t di_gid; __uint32_t di_nlink; __uint16_t di_projid; - __uint8_t di_pad[8]; + __uint16_t di_projid_hi; + __uint8_t di_pad[6]; __uint16_t di_flushiter; xfs_timestamp_t di_atime; xfs_timestamp_t di_mtime; @@ -102,7 +103,7 @@ struct xfs_dinode_core { ---- *di_magic*:: -The inode signature where these two bytes are 0x494e, or "IN" in ASCII. +The inode signature; these two bytes are 0x494e, or "IN" in ASCII. *di_mode*:: Specifies the mode access bits and type of file using the standard S_Ixxx values @@ -115,12 +116,11 @@ values in the inode core. Initially, inodes are created as v1 but can be converted on the fly to v2 when required. *di_format*:: - Specifies the format of the data fork in conjunction with the +di_mode+ type. This can be one of several values. For directories and links, it can be "local" -where all metadata associated with the file is within the inode, "extents" where +where all metadata associated with the file is within the inode; "extents" where the inode contains an array of extents to other filesystem blocks which contain -the associated metadata or data or "btree" where the inode contains a B+tree +the associated metadata or data; or "btree" where the inode contains a B+tree root node which points to filesystem blocks containing the metadata or data. Migration between the formats depends on the amount of metadata associated with the inode. "dev" is used for character and block devices while "uuid" is @@ -150,15 +150,18 @@ Specifies the owner's GID of the inode. *di_nlink*:: Specifies the number of links to the inode from directories. This is maintained -for both inode versions for current versions of XFS. Old versions of XFS did not -support v2 inodes, and therefore this value was never updated and was classed as -reserved space (part of +di_pad+). +for both inode versions for current versions of XFS. Prior to v2 inodes, this +field was part of +di_pad+. *di_projid*:: Specifies the owner's project ID in v2 inodes. An inode is converted to v2 if the project ID is set. This value must be zero for v1 inodes. -*di_pad[8]*:: +*di_projid_hi*:: +Specifies the high 16 bits of the owner's project ID in v2 inodes, if the ++XFS_SB_VERSION2_PROJID32BIT+ feature is set; and zero otherwise. + +*di_pad[6]*:: Reserved, must be zero. *di_flushiter*:: @@ -167,8 +170,8 @@ Incremented on flush. *di_atime*:: Specifies the last access time of the files using UNIX time conventions the -following structure. This value maybe undefined if the filesystem is mounted -with the "noatime" option. +following structure. This value may be undefined if the filesystem is mounted +with the "noatime" option. XFS supports timestamps with nanosecond resolution: [source, c] ---- @@ -240,7 +243,6 @@ following values: [options="header"] |===== | Flag | Description -| +XFS_SB_VERSION_ATTRBIT+ | Set if any inode have extended attributes. | +XFS_DIFLAG_REALTIME+ | The inode's data is located on the real-time device. | +XFS_DIFLAG_PREALLOC+ | The inode's extents have been preallocated. | +XFS_DIFLAG_NEWRTBM+ | @@ -269,6 +271,12 @@ For directory inodes, new inodes inherit the +di_extsize+ value. | +XFS_DIFLAG_NODEFRAG+ | Specifies the inode is to be ignored when defragmenting the filesystem. +| +XFS_DIFLAG_FILESTREAMS+ | +Use the filestream allocator. The filestreams allocator allows a directory to +reserve an entire allocation group for exclusive use by files created in that +directory. Files in other directories cannot use AGs reserved by other +directories. + |===== *di_gen*:: @@ -280,16 +288,15 @@ can change by unlinking and creating a new file that reuses the inode. [[Unlinked_Pointer]] == Unlinked Pointer -The +di_next_unlinked+ value in the inode is used to track inodes that have been -unlinked (deleted) but which are still referenced. When an inode is unlinked and -there is still an outstanding reference, the inode is added to one of the -xref:AG_Inode_Management[AGI's] +agi_unlinked+ hash buckets. The AGI unlinked -bucket points to an inode and the +di_next_unlinked+ value points to the next -inode in the chain. The last inode in the chain has +di_next_unlinked+ set to -NULL (-1). +The +di_next_unlinked+ value in the inode is used to track inodes that have +been unlinked (deleted) but are still open by a program. When an inode is +in this state, the inode is added to one of the xref:AG_Inode_Management[AGI's] ++agi_unlinked+ hash buckets. The AGI unlinked bucket points to an inode and the ++di_next_unlinked+ value points to the next inode in the chain. The last inode +in the chain has +di_next_unlinked+ set to NULL (-1). Once the last reference is released, the inode is removed from the unlinked hash -chain, and +di_next_unlinked+ is set to NULL. In the case of a system crash, XFS +chain and +di_next_unlinked+ is set to NULL. In the case of a system crash, XFS recovery will complete the unlink process for any inodes found in these lists. The only time the unlinked fields can be seen to be used on disk is either on an @@ -372,8 +379,8 @@ This is accessed by casting the return value from +XFS_DFORK_DPTR+ to +char*+. block, the inode contains the extents to these filesystem blocks (+xfs_bmbt_rec_t*+). -Details for symbolic links is covered in the xref:Symbolic_Links[Symbolic Links] -later on. +Details for symbolic links is covered in the section about +xref:Symbolic_Links[Symbolic Links]. [[Other_File_Types]] === Other File Types @@ -390,16 +397,16 @@ For character and block devices (+S_IFCHR+ and +S_IFBLK+), cast the value from The attribute fork in the inode always contains the location of the extended attributes associated with the inode. -The location of the attribute fork in the inode's literal area (offset 100 to -the end of the inode) is specified by the +di_forkoff+ value in the inode's -core. If this value is zero, the inode does not contain any extended attributes. -Non-zero, the byte offset into the literal area = +di_forkoff+ * 8, which also -determines the 2048 byte maximum size for an inode. Attributes must be allocated -on a 64-bit boundary on the disk. To access the extended attributes in code, use -the +XFS_DFORK_PTR+ macro specifying +XFS_ATTR_FORK+ for the "which" parameter. -Alternatively, the +XFS_DFORK_APTR+ macro can be used. +The location of the attribute fork in the inode's literal area is specified by +the +di_forkoff+ value in the inode's core. If this value is zero, the inode +does not contain any extended attributes. If non-zero, the attribute fork's +byte offset into the literal area can be computed from +di_forkoff × 8+. +Attributes must be allocated on a 64-bit boundary on the disk. To access the +extended attributes in code, use the +XFS_DFORK_PTR+ macro specifying ++XFS_ATTR_FORK+ for the "which" parameter. Alternatively, the +XFS_DFORK_APTR+ +macro can be used. -Which structure in the attribute fork is used depends on the +di_aformat+ value +The structure of the attribute fork depends on the +di_aformat+ value in the inode. It can be one of the following values: * +XFS_DINODE_FMT_LOCAL+: The extended attributes are contained entirely within @@ -431,7 +438,7 @@ space is split between +di_u+ and +di_a+ forks which also determines how the With "attr1" attributes, the +di_forkoff+ is set to somewhere in the middle of the space between the core and end of the inode and never changes (which has the effect of artificially limiting the space for data information). As the data -fork grows, when it gets to +di_forkoff+, it will move the data to the level +fork grows, when it gets to +di_forkoff+, it will move the data to the next format level (ie. local < extent < btree). If very little space is used for either attributes or data, then a good portion of the available inode space is wasted with this version. @@ -446,3 +453,5 @@ The following diagram compares the two versions: .Extended attribute layouts image::images/30.png[] +Note that because +di_forkoff+ is an 8-bit value measuring units of 8 bytes, +the maximum size of an inode is 2^8^ × 2^3^ = 2^11^ = 2048 bytes. From darrick.wong@oracle.com Wed Nov 11 13:23:56 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A17777F6B for ; Wed, 11 Nov 2015 13:23:56 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 93D7B8F8033 for ; Wed, 11 Nov 2015 11:23:56 -0800 (PST) X-ASG-Debug-ID: 1447269834-04cbb0242512ccc0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id Gy2AIS1Ntz4xJ1xI (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:23:54 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJNXJf024782 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:23:33 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABJNWJO023465 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:23:33 GMT Received: from abhmp0011.oracle.com (abhmp0011.oracle.com [141.146.116.17]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJNWFH032729; Wed, 11 Nov 2015 19:23:32 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:23:32 -0800 Subject: [PATCH 10/21] xfsdocs: add missing xfs_db examples From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 10/21] xfsdocs: add missing xfs_db examples To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:23:23 -0800 Message-ID: <20151111192323.14235.4359.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447269834 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Fix some of the more egregious missing xfs_db examples so that the reader can appreciate what the data structures look like. Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 74 ++++++++++++++++++++ .../XFS_Filesystem_Structure/data_extents.asciidoc | 41 +++++++++++ .../XFS_Filesystem_Structure/directories.asciidoc | 55 +++++++++++++++ design/XFS_Filesystem_Structure/docinfo.xml | 1 4 files changed, 168 insertions(+), 3 deletions(-) diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index e958039..7d4c11b 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -831,7 +831,79 @@ image::images/20b.png[] ==== xfs_db AGI Example -TODO + +This is an AGI of a freshly populated filesystem: + +---- +xfs_db> agi 0 +xfs_db> p +magicnum = 0x58414749 +versionnum = 1 +seqno = 0 +length = 825457 +count = 5440 +root = 3 +level = 1 +freecount = 9 +newino = 5792 +dirino = null +unlinked[0-63] = +uuid = 3dfa1e5c-5a5f-4ca2-829a-000e453600fe +lsn = 0x1000032c2 +crc = 0x14cb7e5c (correct) +free_root = 4 +free_level = 1 +---- + +From this example, we see that the inode B+tree is rooted at AG block 3 and +that the free inode B+tree is rooted at AG block 4. Let's look at the +inode B+tree: + +---- +xfs_db> addr root +xfs_db> p +magic = 0x49414233 +level = 0 +numrecs = 85 +leftsib = null +rightsib = null +bno = 24 +lsn = 0x1000032c2 +uuid = 3dfa1e5c-5a5f-4ca2-829a-000e453600fe +owner = 0 +crc = 0x768f9592 (correct) +recs[1-85] = [startino,freecount,free] + 1:[96,0,0] 2:[160,0,0] 3:[224,0,0] 4:[288,0,0] + 5:[352,0,0] 6:[416,0,0] 7:[480,0,0] 8:[544,0,0] + 9:[608,0,0] 10:[672,0,0] 11:[736,0,0] 12:[800,0,0] + ... + 85:[5792,9,0xff80000000000000] +---- + +Most of the inode chunks on this filesystem are totally full, since the +free+ +value is zero. This means that we ought to expect inode 160 to be linked +somewhere in the directory structure. However, notice that 0xff80000000000000 +in record 85 -- this means that we would expect inode 5856 to be free. Moving +on to the free inode B+tree, we see that this is indeed the case: + +---- +xfs_db> addr free_root +xfs_db> p +magic = 0x46494233 +level = 0 +numrecs = 1 +leftsib = null +rightsib = null +bno = 32 +lsn = 0x1000032c2 +uuid = 3dfa1e5c-5a5f-4ca2-829a-000e453600fe +owner = 0 +crc = 0x338af88a (correct) +recs[1] = [startino,freecount,free] 1:[5792,9,0xff80000000000000] +---- + +Observe also that the AGI's +agi_newino+ points to this chunk, which has never +been fully allocated. [[Real-time_Devices]] == Real-time Devices diff --git a/design/XFS_Filesystem_Structure/data_extents.asciidoc b/design/XFS_Filesystem_Structure/data_extents.asciidoc index d1617f1..5df6623 100644 --- a/design/XFS_Filesystem_Structure/data_extents.asciidoc +++ b/design/XFS_Filesystem_Structure/data_extents.asciidoc @@ -302,4 +302,43 @@ image::images/36.png[] === xfs_db bmbt Example -TODO +In this example, we dissect the data fork of a VM image that is sufficiently +sparse and interleaved to have become a B+tree. + +---- +xfs_db> inode 132 +xfs_db> p +core.magic = 0x494e +core.mode = 0100600 +core.version = 3 +core.format = 3 (btree) +... +u3.bmbt.level = 1 +u3.bmbt.numrecs = 3 +u3.bmbt.keys[1-3] = [startoff] 1:[0] 2:[9072] 3:[13136] +u3.bmbt.ptrs[1-3] = 1:8568 2:8569 3:8570 +---- + +As you can see, the block map B+tree is rooted in the inode. This tree has two +levels, so let's go down a level to look at the records: + +---- +xfs_db> addr u3.bmbt.ptrs[1] +xfs_db> p +magic = 0x424d4133 +level = 0 +numrecs = 251 +leftsib = null +rightsib = 8569 +bno = 68544 +lsn = 0x100000006 +uuid = 9579903c-333f-4673-a7d4-3254c05816ea +owner = 132 +crc = 0xc61513dc (correct) +recs[1-251] = [startoff,startblock,blockcount,extentflag] + 1:[0,8520,48,0] 2:[48,4421,16,0] 3:[80,9136,16,0] 4:[96,8569,16,0] + 5:[144,8601,32,0] 6:[192,8637,16,0] 7:[240,8680,16,0] 8:[288,9870,16,0] + 9:[320,9920,16,0] 10:[336,9950,16,0] 11:[384,4004,32,0] + 12:[432,6771,16,0] 13:[480,2702,16,0] 14:[528,8420,16,0] + ... +---- diff --git a/design/XFS_Filesystem_Structure/directories.asciidoc b/design/XFS_Filesystem_Structure/directories.asciidoc index 2df118e..73ede11 100644 --- a/design/XFS_Filesystem_Structure/directories.asciidoc +++ b/design/XFS_Filesystem_Structure/directories.asciidoc @@ -269,8 +269,61 @@ b0: 72 61 6d 65 30 30 30 30 30 33 2e 74 73 74 01 80 rame000003.tst.. c0: 00 84 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ ---- -TODO: 8-byte inode number example +This is an example of mixed 4-byte and 8-byte inodes in a directory: +---- +xfs_db> inode 1024 +xfs_db> p +core.magic = 0x494e +core.mode = 040755 +core.version = 3 +core.format = 1 (local) +core.nlinkv2 = 9 +... +core.size = 125 +core.nblocks = 0 +core.extsize = 0 +core.nextents = 0 +... +u3.sfdir3.hdr.count = 7 +u3.sfdir3.hdr.i8count = 4 +u3.sfdir3.hdr.parent.i8 = 1024 +u3.sfdir3.list[0].namelen = 3 +u3.sfdir3.list[0].offset = 0x60 +u3.sfdir3.list[0].name = "git" +u3.sfdir3.list[0].inumber.i8 = 1027 +u3.sfdir3.list[0].filetype = 2 +u3.sfdir3.list[1].namelen = 4 +u3.sfdir3.list[1].offset = 0x70 +u3.sfdir3.list[1].name = "home" +u3.sfdir3.list[1].inumber.i8 = 13422826546 +u3.sfdir3.list[1].filetype = 2 +u3.sfdir3.list[2].namelen = 10 +u3.sfdir3.list[2].offset = 0x80 +u3.sfdir3.list[2].name = "mike" +u3.sfdir3.list[2].inumber.i8 = 4299308032 +u3.sfdir3.list[2].filetype = 2 +u3.sfdir3.list[3].namelen = 3 +u3.sfdir3.list[3].offset = 0x98 +u3.sfdir3.list[3].name = "mtr" +u3.sfdir3.list[3].inumber.i8 = 13433252916 +u3.sfdir3.list[3].filetype = 2 +u3.sfdir3.list[4].namelen = 3 +u3.sfdir3.list[4].offset = 0xa8 +u3.sfdir3.list[4].name = "vms" +u3.sfdir3.list[4].inumber.i8 = 16647516355 +u3.sfdir3.list[4].filetype = 2 +u3.sfdir3.list[5].namelen = 5 +u3.sfdir3.list[5].offset = 0xb8 +u3.sfdir3.list[5].name = "rsync" +u3.sfdir3.list[5].inumber.i8 = 3494912 +u3.sfdir3.list[5].filetype = 2 +u3.sfdir3.list[6].namelen = 3 +u3.sfdir3.list[6].offset = 0xd0 +u3.sfdir3.list[6].name = "tmp" +u3.sfdir3.list[6].inumber.i8 = 1593379 +u3.sfdir3.list[6].filetype = 2 +---- [[Block_Directories]] == Block Directories diff --git a/design/XFS_Filesystem_Structure/docinfo.xml b/design/XFS_Filesystem_Structure/docinfo.xml index 32a502d..85ccda5 100644 --- a/design/XFS_Filesystem_Structure/docinfo.xml +++ b/design/XFS_Filesystem_Structure/docinfo.xml @@ -83,6 +83,7 @@ Miscellaneous fixes. Add missing field definitions. + Add some missing xfs_db examples. From darrick.wong@oracle.com Wed Nov 11 13:24:11 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id EC7E67FA5 for ; Wed, 11 Nov 2015 13:24:11 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id DFB258F804B for ; Wed, 11 Nov 2015 11:24:11 -0800 (PST) X-ASG-Debug-ID: 1447269850-04cbb0242512ccd0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id TEbMVNjBOTMOyeHY (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:24:10 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJNkxH026095 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:23:47 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJNkU8013055 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:23:46 GMT Received: from abhmp0010.oracle.com (abhmp0010.oracle.com [141.146.116.16]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABJNjfE013236; Wed, 11 Nov 2015 19:23:46 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:23:45 -0800 Subject: [PATCH 12/21] xfsdocs: introduce XFS at a high level From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 12/21] xfsdocs: introduce XFS at a high level To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:23:44 -0800 Message-ID: <20151111192344.14235.83160.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447269850 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Provide a quick overview of the history and design goals of XFS, and specify what exactly this documentation aims to do. Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 9 +++-- design/XFS_Filesystem_Structure/docinfo.xml | 3 +- design/XFS_Filesystem_Structure/overview.asciidoc | 38 ++++++++++++++++++++ .../xfs_filesystem_structure.asciidoc | 31 +++++++++++++--- 4 files changed, 70 insertions(+), 11 deletions(-) create mode 100644 design/XFS_Filesystem_Structure/overview.asciidoc diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index 0527ecc..346f1b2 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -1,10 +1,11 @@ [[Allocation_Groups]] = Allocation Groups -XFS filesystems are divided into a number of equally sized chunks called -Allocation Groups. Each AG can almost be thought of as an individual filesystem -that maintains its own space usage. Each AG can be up to one terabyte in size -(512 bytes × 2^31^), regardless of the underlying device's sector size. +As mentioned earlier, XFS filesystems are divided into a number of equally +sized chunks called Allocation Groups. Each AG can almost be thought of as an +individual filesystem that maintains its own space usage. Each AG can be up to +one terabyte in size (512 bytes × 2^31^), regardless of the underlying device's +sector size. Each AG has the following characteristics: diff --git a/design/XFS_Filesystem_Structure/docinfo.xml b/design/XFS_Filesystem_Structure/docinfo.xml index 85ccda5..6620acf 100644 --- a/design/XFS_Filesystem_Structure/docinfo.xml +++ b/design/XFS_Filesystem_Structure/docinfo.xml @@ -1,7 +1,7 @@ 3rd Edition @@ -84,6 +84,7 @@ Miscellaneous fixes. Add missing field definitions. Add some missing xfs_db examples. + Add an overview of XFS. diff --git a/design/XFS_Filesystem_Structure/overview.asciidoc b/design/XFS_Filesystem_Structure/overview.asciidoc new file mode 100644 index 0000000..d15b50a --- /dev/null +++ b/design/XFS_Filesystem_Structure/overview.asciidoc @@ -0,0 +1,38 @@ += Overview + +XFS presents to users a standard Unix filesystem interface: a rooted +tree of directories, files, symbolic links, and devices. All five of those +entities are represented inside the filesystem by an index node, or ``inode''; +each node is uniquely referenced by an inode number. Directories consist of +(name, inode number) tuples and it is possible for multiple tuples to contain +the same inode number. Data blocks are associated with files by means of a +block map in each index node. It is also possible to attach (key, value) +tuples to any index node; these are known as ``extended attributes'', which +extend beyond the standard Unix file attributes. + +Internally, XFS filesystems are divided into a number of equally sized chunks +called Allocation Groups. Each AG can almost be thought of as an individual +filesystem that maintains its own space usage, index nodes, and other secondary +metadata. Having multiple AGs allows XFS to handle most operations in parallel +without degrading performance as the number of concurrent accesses increases. +Each allocation group uses multiple B+trees to maintain bookkeeping records +such as the locations of free blocks, the locations of allocated inodes, and +the locations of free inodes. + +Files, symbolic links, and directories can have up to two block maps, or +``forks'', which associate filesystems blocks with a particular file or +directory. The ``attribute fork'' tracks blocks used to store and index +extended attributes, whereas the ``data fork'' tracks file data blocks, +symbolic link targets, or directory blocks, depending on the type of the inode +record. Both forks associate a logical offset with an extent of physical +blocks, which makes sparse files and directories possible. Directory entries +and extended attributes are contained inside a second-level data structure +within the blocks that are mapped by the forks. This structure consists of +variable-length directory or attribute records and possible a second B+tree to +index these records. + +XFS employs a journalling log in which metadata changes are collected so that +filesystem operations can be carried out atomically in the case of a crash. +Furthermore, there is the concept of a real-time device wherein allocations are +tracked more simply and in larger chunks to reduce jitter in allocation +latency. diff --git a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc index a78f3b9..9f4c096 100644 --- a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc +++ b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc @@ -16,17 +16,36 @@ High Level Design [partintro] -- -This document describes the layout of an XFS filesystem. - -It shows how to manually inspect it by showing examples using the xfs_db -user-space tool supplied with the XFS filesystem driver. - -TODO: More description. +XFS is a high performance filesystem which was designed to maximize parallel +throughput and to scale up to extremely large 64-bit storage systems. +Originally developed by SGI in October 1993 for IRIX, XFS can handle large +files, large filesystems, many inodes, large directories, large file +attributes, and large allocations. Filesystems are optimized for parallel +access by splitting the storage device into semi-autonomous allocation groups. +XFS employs branching trees (B+ trees) to facilitate fast searches of large +lists; it also uses delayed extent-based allocation to improve data contiguity +and IO performance. + +This document describes the on-disk layout of an XFS filesystem and how to use +the debugging tools +xfs_db+ and +xfs_logprint+ to inspect the metadata +structures. It also describes how on-disk metadata relates to the higher level +design goals. + +The information contained in this document derives from the XFS source code in +the Linux kernel as of v4.3. This book's source code is available at ++git://git.kernel.org/pub/scm/fs/xfs/xfs-documentation.git+. Feedback should +be sent to the XFS mailing list, currently at +xfs@oss.sgi.com+. + +[NOTE] +All fields in XFS metadata structures are in big-endian byte order except for +log items which are formatted in host order. -- // Push titles down one level :leveloffset: 1 +include::overview.asciidoc[] + include::common_types.asciidoc[] // return titles to normal From darrick.wong@oracle.com Wed Nov 11 13:24:11 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4E6737F96 for ; Wed, 11 Nov 2015 13:24:11 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id E2F31AC004 for ; Wed, 11 Nov 2015 11:24:10 -0800 (PST) X-ASG-Debug-ID: 1447269846-04bdf03f031212e0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id qHM22kKDFV3Ssgke (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:24:06 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJNhII024962 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:23:43 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJNglv019139 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:23:43 GMT Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJNd0E018303; Wed, 11 Nov 2015 19:23:39 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:23:38 -0800 Subject: [PATCH 11/21] xfsdocs: fix quoted text markings From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 11/21] xfsdocs: fix quoted text markings To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:23:37 -0800 Message-ID: <20151111192337.14235.60760.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447269846 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Use asciidoc quotes for quoted strings. Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 24 ++--- .../XFS_Filesystem_Structure/data_extents.asciidoc | 4 - .../XFS_Filesystem_Structure/directories.asciidoc | 98 ++++++++++---------- .../extended_attributes.asciidoc | 26 +++-- .../internal_inodes.asciidoc | 2 .../XFS_Filesystem_Structure/ondisk_inode.asciidoc | 32 +++---- .../symbolic_links.asciidoc | 8 +- 7 files changed, 97 insertions(+), 97 deletions(-) diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index 7d4c11b..0527ecc 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -93,7 +93,7 @@ struct xfs_sb }; ---- *sb_magicnum*:: -Identifies the filesystem. Its value is +XFS_SB_MAGIC = 0x58465342 "XFSB"+. +Identifies the filesystem. Its value is +XFS_SB_MAGIC+ ``XFSB'' (0x58465342). *sb_blocksize*:: The size of a basic unit of space allocation in bytes. Typically, this is 4096 @@ -269,7 +269,7 @@ Miscellaneous flags. |===== *sb_shared_vn*:: -Reserved and must be zero ("vn" stands for version number). +Reserved and must be zero (``vn'' stands for version number). *sb_inoalignmt*:: Inode chunk alignment in fsblocks. @@ -413,8 +413,8 @@ All block numbers, indexes, and counts are AG relative. === AG Free Space Block The second sector in an AG contains the information about the two free space -B+trees and associated free space information for the AG. The "AG Free Space -Block", also knows as the +AGF+, uses the following structure: +B+trees and associated free space information for the AG. The ``AG Free Space +Block'' also knows as the +AGF+, uses the following structure: [source, c] ---- @@ -441,7 +441,7 @@ index 0 for the free space B+tree indexed by block number; and index 1 for the free space B+tree indexed by extent size. *agf_magicnum*:: -Specifies the magic number for the AGF sector: "XAGF" (0x58414746). +Specifies the magic number for the AGF sector: ``XAGF'' (0x58414746). *agf_versionnum*:: Set to +XFS_AGF_VERSION+ which is currently 1. @@ -460,17 +460,17 @@ Specifies the block number for the root of the two free space B+trees. *agf_levels*:: Specifies the level or depth of the two free space B+trees. For a fresh AG, this -will be one, and the "roots" will point to a single leaf of level 0. +will be one, and the ``roots'' will point to a single leaf of level 0. *agf_flfirst*:: -Specifies the index of the first "free list" block. Free lists are covered in +Specifies the index of the first ``free list'' block. Free lists are covered in more detail later on. *agf_fllast*:: -Specifies the index of the last "free list" block. +Specifies the index of the last ``free list'' block. *agf_flcount*:: -Specifies the number of blocks in the "free list". +Specifies the number of blocks in the ``free list''. *agf_freeblks*:: Specifies the current number of free blocks in the AG. @@ -551,8 +551,8 @@ typedef __be32 xfs_alloc_ptr_t; * As the free space tracking is AG relative, all the block numbers are only 32-bits. -* The +bb_magic+ value depends on the B+tree: "ABTB" (0x41425442) for the block -offset B+tree, "ABTC" (0x41425443) for the block count B+tree. +* The +bb_magic+ value depends on the B+tree: ``ABTB'' (0x41425442) for the block +offset B+tree, ``ABTC'' (0x41425443) for the block count B+tree. * The +xfs_btree_sblock_t+ header is used for intermediate B+tree node as well as the leaves. * For a typical 4KB filesystem block size, the offset for the +xfs_alloc_ptr_t+ @@ -741,7 +741,7 @@ struct xfs_agi { } ---- *agi_magicnum*:: -Specifies the magic number for the AGI sector: "XAGI" (0x58414749). +Specifies the magic number for the AGI sector: ``XAGI'' (0x58414749). *agi_versionnum*:: Set to +XFS_AGI_VERSION+ which is currently 1. diff --git a/design/XFS_Filesystem_Structure/data_extents.asciidoc b/design/XFS_Filesystem_Structure/data_extents.asciidoc index 5df6623..af9ba44 100644 --- a/design/XFS_Filesystem_Structure/data_extents.asciidoc +++ b/design/XFS_Filesystem_Structure/data_extents.asciidoc @@ -3,7 +3,7 @@ XFS manages space using extents, which are defined as a starting location and length. A fork in an XFS inode maps a logical offset to a space extent. This -enables a file's extent map to support sparse files (i.e. "holes" in the file). +enables a file's extent map to support sparse files (i.e. ``holes'' in the file). A flag is also used to specify if the extent has been preallocated but has not yet been written (unwritten extent). @@ -259,7 +259,7 @@ struct xfs_btree_lblock { ---- *bb_magic*:: -Specifies the magic number for the BMBT block: "BMAP" (0x424d4150). +Specifies the magic number for the BMBT block: ``BMAP'' (0x424d4150). *bb_level*:: The level of the tree in which this block is found. If this value is 0, this diff --git a/design/XFS_Filesystem_Structure/directories.asciidoc b/design/XFS_Filesystem_Structure/directories.asciidoc index 73ede11..b539535 100644 --- a/design/XFS_Filesystem_Structure/directories.asciidoc +++ b/design/XFS_Filesystem_Structure/directories.asciidoc @@ -5,16 +5,16 @@ Only v2 directories covered here. v1 directories are obsolete. [NOTE] -The term "block" in this section will refer to directory blocks, not filesystem +The term ``block'' in this section will refer to directory blocks, not filesystem blocks unless otherwise specified. -The size of a "directory block" is defined by the xref:Superblocks[superblock's] +The size of a ``directory block'' is defined by the xref:Superblocks[superblock's] +sb_dirblklog+ value. The size in bytes = +sb_blocksize+ × 2^sb_dirblklog^. For example, if +sb_blocksize+ = 4096 and +sb_dirblklog+ = 2, the directory block size is 16384 bytes. Directory blocks are always allocated in multiples based on +sb_dirblklog+. Directory blocks cannot be more that 65536 bytes in size. -All directory entries contain the following "data": +All directory entries contain the following ``data'': * The entry's name (counted string consisting of a single byte +namelen+ followed by +name+ consisting of an array of 8-bit chars without a NULL @@ -26,17 +26,17 @@ directories. * An +offset+ or +tag+ used for iterative readdir calls. -All non-shortform directories also contain two additional structures: "leaves" -and "freespace indexes". +All non-shortform directories also contain two additional structures: ``leaves'' +and ``freespace indexes''. * Leaves contain the sorted hashed name value (+xfs_da_hashname()+ in -xfs_da_btree.c) and associated "address" which points to the effective offset +xfs_da_btree.c) and associated ``address'' which points to the effective offset into the directory's data structures. Leaves are used to optimise lookup operations. * Freespace indexes contain free space/empty entry tracking for quickly finding an appropriately sized location for new entries. They maintain the largest free -space for each "data" block. +space for each ``data'' block. A few common types are used for the directory structures: @@ -52,11 +52,11 @@ typedef __uint32_t xfs_dir2_dataptr_t; * Directory entries are stored within the inode. -* The only data stored is the name, inode number, and offset. No "leaf" or -"freespace index" information is required as an inode can only store a few +* The only data stored is the name, inode number, and offset. No ``leaf'' or +``freespace index'' information is required as an inode can only store a few entries. -* "." is not stored (as it's in the inode itself), and ".." is a dedicated +* ``.'' is not stored (as it's in the inode itself), and ``..'' is a dedicated +parent+ field in the header. * The number of directories that can be stored in an inode depends on the @@ -216,7 +216,7 @@ cO: 00 84 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ ---- Next, an entry is deleted (frame000001.tst), and any entries after the deleted -entry are moved or compacted to "cover" the hole: +entry are moved or compacted to ``cover'' the hole: ---- xfs_db> inode @@ -330,13 +330,13 @@ u3.sfdir3.list[6].filetype = 2 When the shortform directory space exceeds the space in an inode, the directory data is moved into a new single directory block outside the inode. The inode's -format is changed from "local" to "extent". Following is a list of points about +format is changed from ``local'' to ``extent'' Following is a list of points about block directories. -* All directory data is stored within the one directory block, including "." and -".." entries which are mandatory. +* All directory data is stored within the one directory block, including ``.'' and +``..'' entries which are mandatory. -* The block also contains "leaf" and "freespace index" information. +* The block also contains ``leaf'' and ``freespace index'' information. * The location of the block is defined by the inode's in-core xref:Extent_List[extent list]: the +di_u.u_bmx[0]+ value. The file offset in @@ -494,7 +494,7 @@ Following is a diagram of how these pieces fit together for a block directory. .Block directory layout image::images/43.png[] -* The magic number in the header is "XD2B" (0x58443242). +* The magic number in the header is ``XD2B'' (0x58443242). * The +tag+ in the +xfs_dir2_data_entry_t+ structure stores its offset from the start of the block. @@ -556,7 +556,7 @@ core.nextents = 1 u.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,2097164,1,0] ---- -Go to the "startblock" and show the raw disk data: +Go to the ``startblock'' and show the raw disk data: ---- xfs_db> dblock 0 @@ -584,7 +584,7 @@ xfs_db> p 130: ff ff 0e 78 00 00 00 00 00 00 00 00 00 00 00 00 ...x............ ---- -The "leaf" and "tail" structures are stored at the end of the block, so as the +The ``leaf'' and ``tail'' structures are stored at the end of the block, so as the directory grows, the middle is filled in: ---- @@ -652,7 +652,7 @@ btail.stale = 0 ---- [NOTE] -For block directories, all xfs_db fields are preceded with "b". +For block directories, all xfs_db fields are preceded with ``b''. For a simple lookup example, the hash of frame000000.tst is 0xb3a040b4. Looking up that value, we get an address of 0x6. Multiply that by 8, it becomes offset @@ -692,7 +692,7 @@ btail.count = 10 btail.stale = 1 ---- -A new "bestfree" value is added for the entry, the start of the entry is marked +A new ``bestfree'' value is added for the entry, the start of the entry is marked as unused with 0xffff (which overwrites the inode number for an actual entry), and the length of the space. The tag remains intact at the +offset+length - sizeof(tag)+. The address for the hash is also cleared. The affected areas are @@ -721,24 +721,24 @@ ff0: f3 a0 40 b4 00 00 00 1a 00 00 00 0a *00 00 00 01* ................. Once a Block Directory has filled the block, the directory data is changed into a new format. It still uses xref:Data_Extents[extents] and the same basic -structures, but the "data" and "leaf" are split up into their own extents. The -"leaf" information only occupies one extent. As "leaf" information is more -compact than "data" information, more than one "data" extent is common. +structures, but the ``data'' and ``leaf'' are split up into their own extents. The +``leaf'' information only occupies one extent. As ``leaf'' information is more +compact than ``data'' information, more than one ``data'' extent is common. * Block to Leaf conversions retain the existing block for the data entries and allocate a new block for the leaf and freespace index information. * As with all directories, data blocks must start at logical offset zero. -* The "leaf" block has a special offset defined by +XFS_DIR2_LEAF_OFFSET+. +* The ``leaf'' block has a special offset defined by +XFS_DIR2_LEAF_OFFSET+. Currently, this is 32GB and in the extent view, a block offset of 32GB / +sb_blocksize+. On a 4KB block filesystem, this is 0x800000 (8388608 decimal). -* Blocks with directory entries ("data" extents) have the magic number "X2D2" +* Blocks with directory entries (``data'' extents) have the magic number ``X2D2'' (0x58443244). -* The "data" extents have a new header (no "leaf" data): +* The ``data'' extents have a new header (no ``leaf'' data): [source, c] ---- @@ -756,7 +756,7 @@ Union of directory and unused entries, exactly the same as in a block directory. // split lists -* The "leaf" extent uses the following structures: +* The ``leaf'' extent uses the following structures: [source, c] ---- @@ -844,7 +844,7 @@ Padding to maintain alignment. * The size of the +ents+ array is specified by +hdr.count+. * The size of the +bests+ array is specified by the +tail.bestcount+, which is -also the number of "data" blocks for  the directory. The bests array maintains +also the number of ``data'' blocks for  the directory. The bests array maintains each data block's +bestfree[0].length+ value. .Leaf directory free entry detail @@ -876,8 +876,8 @@ u.bmx[0-2] = [startoff,startblock,blockcount,extentflag] 2:[8388608,4718605,1,0] ---- -As can be seen in this example, three blocks are used for "data" in two extents, -and the "leaf" extent has a logical offset of 8388608 blocks (32GB). +As can be seen in this example, three blocks are used for ``data'' in two extents, +and the ``leaf'' extent has a logical offset of 8388608 blocks (32GB). Examining the first block: @@ -931,9 +931,9 @@ du[119].tag = 0xff0 ---- [NOTE] -The xfs_db field output is preceded by a "d" for "data". +The xfs_db field output is preceded by a ``d'' for ``data''. -The next "data" block: +The next ``data'' block: ---- xfs_db> dblock 1 @@ -1015,7 +1015,7 @@ du[3].length = 0xf90 du[3].tag = 0x70 ---- -Examining the "leaf" block (with the fields preceded by an "l" for "leaf"): +Examining the ``leaf'' block (with the fields preceded by an ``l'' for ``leaf''): ---- xfs_db> dblock 8388608 @@ -1040,7 +1040,7 @@ ltail.bestcount = 3 ---- Note how the +lbests+ array correspond with the +bestfree[0].length+ values in -the "data" blocks: +the ``data'' blocks: ---- xfs_db> dblock 0 @@ -1098,28 +1098,28 @@ spaces. [[Node_Directories]] == Node Directories -When the "leaf" information fills a block, the extents undergo another -separation. All "freeindex" information moves into its own extent. Like Leaf -Directories, the "leaf" block maintained the best free space information for -each "data" block. This is not possible with more than one leaf. +When the ``leaf'' information fills a block, the extents undergo another +separation. All ``freeindex'' information moves into its own extent. Like Leaf +Directories, the ``leaf'' block maintained the best free space information for +each ``data'' block. This is not possible with more than one leaf. -* The "data" blocks stay the same as leaf directories. +* The ``data'' blocks stay the same as leaf directories. -* After the "freeindex" data moves to its own block, it is possible for the +* After the ``freeindex'' data moves to its own block, it is possible for the leaf data to fit within a single leaf block. This single leaf block has a magic number of +XFS_DIR2_LEAFN_MAGIC+ (0xd2ff). -* The "leaf" blocks eventually change into a B+tree with the generic B+tree -header pointing to directory "leaves" as described in +* The ``leaf'' blocks eventually change into a B+tree with the generic B+tree +header pointing to directory ``leaves'' as described in xref:Leaf_Directories[Leaf Directories]. Blocks with leaf data still have the +LEAFN_MAGIC+ magic number as outlined above. The top-level tree blocks are -called "nodes" and have a magic number of +XFS_DA_NODE_MAGIC+ (0xfebe). +called ``nodes'' and have a magic number of +XFS_DA_NODE_MAGIC+ (0xfebe). * Distinguishing between a combined leaf/freeindex block (+LEAF1_MAGIC+), a leaf-only block (+LEAFN_MAGIC+), and a btree node block (+NODE_MAGIC+) can only be done by examining the magic number. -* The new "freeindex" block(s) only contains the bests for each data block. +* The new ``freeindex'' block(s) only contains the bests for each data block. * The freeindex block uses the following structures: @@ -1134,7 +1134,7 @@ typedef struct xfs_dir2_free_hdr { ---- *magic*:: -The magic number of the free block, "XD2F" (0x0x58443246). +The magic number of the free block, ``XD2F'' (0x0x58443246). *firstdb*:: The starting directory block number for the bests array. @@ -1212,7 +1212,7 @@ start of the block. block is freed, the data extents contain a hole, and the freeindex's +hdr.nused+ value is decremented and the associated +bests[]+ entry is set to 0xffff. -* As the first data block always contains "." and "..", it's invalid for the +* As the first data block always contains ``.'' and ``..'', it's invalid for the directory to have a hole at the start. * The freeindex's +hdr.nvalid+ should always be the same as the number of @@ -1297,7 +1297,7 @@ du[5].length = 0x3f50 du[5].tag = 0 ---- -Next, the "node" block, the fields are preceded with 'n' for node blocks: +Next, the ``node'' block, the fields are preceded with 'n' for node blocks: ---- xfs_db> dblock 8388608 @@ -1409,9 +1409,9 @@ TODO: Example with a hole in the middle == B+tree Directories When the extent map in an inode grows beyond the inode's space, the inode format -is changed to a "btree". The inode contains a filesystem block point to the +is changed to a ``btree''. The inode contains a filesystem block point to the B+tree extent map for the directory's blocks. The B+tree extents contain the -extent map for the "data", "node", "leaf", and "freeindex" information as +extent map for the ``data'', ``node'', ``leaf'', and ``freeindex'' information as described in Node Directories. Refer to the previous section on B+tree xref:Btree_Extent_List[Data Extents] for diff --git a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc index 2499f12..f268d66 100644 --- a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc +++ b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc @@ -26,8 +26,8 @@ To view extended attributes from the command line, use the +getfattr+ command. To set or delete extended attributes, use the +setfattr+ command. ACLs control should use the +getfacl+ and +setfacl+ commands. -XFS attributes supports three namespaces: "user", "trusted" (or "root" using -IRIX terminology), and "secure". +XFS attributes supports three namespaces: ``user'', ``trusted'' (or ``root'' using +IRIX terminology), and ``secure''. See the section about xref:Extended_Attribute_Versions[extended attributes] in the inode for instructions on how to calculate the location of the attributes. @@ -39,7 +39,7 @@ The following four sections describe each of the on-disk formats. == Short Form Attributes When the all extended attributes can fit within the inode's attribute fork, the -inode's +di_aformat+ is set to "local" and the attributes are stored in the +inode's +di_aformat+ is set to ``local'' and the attributes are stored in the inode's literal area starting at offset +di_forkoff × 8+. Shortform attributes use the following structures: @@ -85,9 +85,9 @@ A combination of the following: [options="header"] |===== | Flag | Description -| 0 | The attribute's namespace is "user". -| +XFS_ATTR_ROOT+ | The attribute's namespace is "trusted". -| +XFS_ATTR_SECURE+ | The attribute's namespace is "secure". +| 0 | The attribute's namespace is ``user''. +| +XFS_ATTR_ROOT+ | The attribute's namespace is ``trusted''. +| +XFS_ATTR_SECURE+ | The attribute's namespace is ``secure''. | +XFS_ATTR_INCOMPLETE+ | This attribute is being modified. | +XFS_ATTR_LOCAL+ | The attribute value is contained within this block. |===== @@ -314,10 +314,10 @@ an inode before they are moved to another filesystem block. == Leaf Attributes When an inode's attribute fork space is used up with shortform attributes and -more are added, the attribute format is migrated to "extents". +more are added, the attribute format is migrated to ``extents''. Extent based attributes use hash/index pairs to speed up an attribute lookup. -The first part of the "leaf" contains an array of fixed size hash/index pairs +The first part of the ``leaf'' contains an array of fixed size hash/index pairs with the flags stored as well. The remaining part of the leaf block contains the array name/value pairs, where each element varies in length. @@ -486,7 +486,7 @@ appropriate structure can be used. Since duplicate hash keys are possible, for each hash that matches during a lookup, the actual name string must be compared. -An "incomplete" bit is also used for attribute flags. It shows that an attribute +An ``incomplete'' bit is also used for attribute flags. It shows that an attribute is in the middle of being created and should not be shown to the user if we crash during the time that the bit is set. The bit is cleared when attribute has finished being set up. This is done because some large attributes cannot @@ -635,7 +635,7 @@ image::images/72.png[] === xfs_db Node Attribute Example -An inode with 1000 small attributes with the naming "attribute_n" where 'n' is a +An inode with 1000 small attributes with the naming ``attribute_n'' where 'n' is a number: ---- @@ -677,7 +677,7 @@ The hashes are in ascending order in the btree array, and if the hash for the attribute we are looking up is before the entry, we go to the addressed attribute block. -For example, to lookup attribute "attribute_267": +For example, to lookup attribute ``attribute_267'': ---- xfs_db> hash attribute_267 @@ -745,7 +745,7 @@ nvlist[84].value = "value_266\d" Each of the hash entries has +XFS_ATTR_LOCAL+ flag set (1), which means the attribute's value follows immediately after the name. Raw disk of the name/value -pair at offset 2864 (0xb30), highlighted with "value_267\d" following +pair at offset 2864 (0xb30), highlighted with ``value_267'' following immediately after the name: [subs="quotes"] @@ -768,7 +768,7 @@ has 2 unused bytes after it. == B+tree Attributes When the attribute's extent map in an inode grows beyond the available space, -the inode's attribute format is changed to a "btree". The inode contains root +the inode's attribute format is changed to a ``btree''. The inode contains root node of the extent B+tree which then address the leaves that contains the extent arrays for the attribute data. The attribute data itself in the allocated filesystem blocks use the same layout and structures as described in diff --git a/design/XFS_Filesystem_Structure/internal_inodes.asciidoc b/design/XFS_Filesystem_Structure/internal_inodes.asciidoc index a926857..837f025 100644 --- a/design/XFS_Filesystem_Structure/internal_inodes.asciidoc +++ b/design/XFS_Filesystem_Structure/internal_inodes.asciidoc @@ -65,7 +65,7 @@ struct xfs_dqblk { *d_magic*:: Specifies the signature where these two bytes are 0x4451 (+XFS_DQUOT_MAGIC+), -or "DQ" in ASCII. +or ``DQ'' in ASCII. *d_version*:: The structure version, currently this is 1 (+XFS_DQUOT_VERSION+). diff --git a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc index a887f8e..da6281b 100644 --- a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc +++ b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc @@ -15,7 +15,7 @@ image::images/23.png[] * The core contains what the inode represents, stat data, and information describing the data and attribute forks. -* The +di_u+ "data fork" contains normal data related to the inode. Its contents +* The +di_u+ ``data fork'' contains normal data related to the inode. Its contents depends on the file type specified by +di_core.di_mode+ (eg. regular file, directory, link, etc) and how much information is contained in the file which determined by +di_core.di_format+. The following union to represent this data is @@ -34,7 +34,7 @@ union { } di_u; ---- -* The +di_a+ "attribute fork" contains extended attributes. Its layout is +* The +di_a+ ``attribute fork'' contains extended attributes. Its layout is determined by the +di_core.di_aformat+ value. Its representation is declared as follows: @@ -54,7 +54,7 @@ within the union are directly cast depending on the +di_mode/di_format+ and explain the various structures in use within the inode. The remaining space in the inode after +di_next_unlinked+ where the two forks -are located is called the inode's "literal area". This starts at offset 100 +are located is called the inode's ``literal area''. This starts at offset 100 (0x64) in the inode. The space for each of the two forks in the literal area is determined by the @@ -103,7 +103,7 @@ struct xfs_dinode_core { ---- *di_magic*:: -The inode signature; these two bytes are 0x494e, or "IN" in ASCII. +The inode signature; these two bytes are ``IN'' (0x494e). *di_mode*:: Specifies the mode access bits and type of file using the standard S_Ixxx values @@ -117,13 +117,13 @@ converted on the fly to v2 when required. *di_format*:: Specifies the format of the data fork in conjunction with the +di_mode+ type. -This can be one of several values. For directories and links, it can be "local" -where all metadata associated with the file is within the inode; "extents" where +This can be one of several values. For directories and links, it can be ``local'' +where all metadata associated with the file is within the inode; ``extents'' where the inode contains an array of extents to other filesystem blocks which contain -the associated metadata or data; or "btree" where the inode contains a B+tree +the associated metadata or data; or ``btree'' where the inode contains a B+tree root node which points to filesystem blocks containing the metadata or data. Migration between the formats depends on the amount of metadata associated with -the inode. "dev" is used for character and block devices while "uuid" is +the inode. ``dev'' is used for character and block devices while ``uuid'' is currently not used. [source, c] @@ -171,7 +171,7 @@ Incremented on flush. Specifies the last access time of the files using UNIX time conventions the following structure. This value may be undefined if the filesystem is mounted -with the "noatime" option. XFS supports timestamps with nanosecond resolution: +with the ``noatime'' option. XFS supports timestamps with nanosecond resolution: [source, c] ---- @@ -226,7 +226,7 @@ details. *di_aformat*:: Specifies the format of the attribute fork. This uses the same values as -+di_format+, but restricted to "local", "extents" and "btree" formats for ++di_format+, but restricted to ``local'', ``extents'' and ``btree'' formats for extended attribute data. *di_dmevmask*:: @@ -312,10 +312,10 @@ image::images/28.png[] The structure of the inode's data fork based is on the inode's type and +di_format+. It always starts at offset 100 (0x64) in the inode's space which is -the start of the inode's "literal area". The size of the data fork is determined +the start of the inode's ``literal area''. The size of the data fork is determined by the type and format. The maximum size is determined by the inode size and +di_forkoff+. In code, use the +XFS_DFORK_PTR+ macro specifying +XFS_DATA_FORK+ -for the "which" parameter. Alternatively, the +XFS_DFORK_DPTR+ macro can be +for the ``which'' parameter. Alternatively, the +XFS_DFORK_DPTR+ macro can be used. Each of the following sub-sections summarises the contents of the data fork @@ -403,7 +403,7 @@ does not contain any extended attributes. If non-zero, the attribute fork's byte offset into the literal area can be computed from +di_forkoff × 8+. Attributes must be allocated on a 64-bit boundary on the disk. To access the extended attributes in code, use the +XFS_DFORK_PTR+ macro specifying -+XFS_ATTR_FORK+ for the "which" parameter. Alternatively, the +XFS_DFORK_APTR+ ++XFS_ATTR_FORK+ for the ``which'' parameter. Alternatively, the +XFS_DFORK_APTR+ macro can be used. The structure of the attribute fork depends on the +di_aformat+ value @@ -429,13 +429,13 @@ xref:Extended_Attributes[Extended Attributes] in this document. [[Extended_Attribute_Versions]] === Extended Attribute Versions -Extended attributes come in two versions: "attr1" or "attr2". The attribute +Extended attributes come in two versions: ``attr1'' or ``attr2''. The attribute version is specified by the +XFS_SB_VERSION2_ATTR2BIT+  flag in the +sb_features2+ field in the superblock. It determines how the inode's extra space is split between +di_u+ and +di_a+ forks which also determines how the +di_forkoff+ value is maintained in the inode's core. -With "attr1" attributes, the +di_forkoff+ is set to somewhere in the middle of +With ``attr1'' attributes, the +di_forkoff+ is set to somewhere in the middle of the space between the core and end of the inode and never changes (which has the effect of artificially limiting the space for data information). As the data fork grows, when it gets to +di_forkoff+, it will move the data to the next @@ -443,7 +443,7 @@ format level (ie. local < extent < btree). If very little space is used for either attributes or data, then a good portion of the available inode space is wasted with this version. -"Attr2" was introduced to maximum the utilisation of the inode's literal area. +``attr2'' was introduced to maximum the utilisation of the inode's literal area. The +di_forkoff+ starts at the end of the inode and works its way to the data fork as attributes are added. Attr2 is highly recommended if extended attributes are used. diff --git a/design/XFS_Filesystem_Structure/symbolic_links.asciidoc b/design/XFS_Filesystem_Structure/symbolic_links.asciidoc index 939c440..5d2c4e8 100644 --- a/design/XFS_Filesystem_Structure/symbolic_links.asciidoc +++ b/design/XFS_Filesystem_Structure/symbolic_links.asciidoc @@ -1,15 +1,15 @@ [[Symbolic_Links]] = Symbolic Links -Symbolic links to a file can be stored in one of two formats: "local" and -"extents". The length of the symlink contents is always specified by the inode's +Symbolic links to a file can be stored in one of two formats: ``local'' and +``extents''. The length of the symlink contents is always specified by the inode's +di_size+ value. [[Shortform_Symbolic_Links]] == Short Form Symbolic Links -Symbolic links are stored with the "local" +di_format+ if the symbolic link can +Symbolic links are stored with the ``local'' +di_format+ if the symbolic link can fit within the inode's data fork. The link data is an array of characters (+di_symlink+ array in the data fork union). @@ -58,7 +58,7 @@ xfs_db> p If the length of the symbolic link exceeds the space available in the inode's data fork, the link is moved to a new filesystem block and the inode's -+di_format+ is changed to "extents". The location of the block(s) is specified ++di_format+ is changed to ``extents''. The location of the block(s) is specified by the data fork's +di_bmx[]+ array. In the significant majority of cases, this will be in one filesystem block as a symlink cannot be longer than 1024 characters. From darrick.wong@oracle.com Wed Nov 11 13:24:21 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 40A5F7F74 for ; Wed, 11 Nov 2015 13:24:21 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 332FF8F8035 for ; Wed, 11 Nov 2015 11:24:21 -0800 (PST) X-ASG-Debug-ID: 1447269857-04cb6c296c125060001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id hQwRsE5yzZcFInz8 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:24:17 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJNrIP026236 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:23:53 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJNqZu019474 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:23:53 GMT Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJNqSD018370; Wed, 11 Nov 2015 19:23:52 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:23:51 -0800 Subject: [PATCH 13/21] xfsdocs: document the xfs log format From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 13/21] xfsdocs: document the xfs log format To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:23:50 -0800 Message-ID: <20151111192350.14235.44655.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447269857 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Discuss the on-disk log format and provide an example of walking through the log with xfs_logprint. Signed-off-by: Darrick J. Wong --- design/XFS_Filesystem_Structure/docinfo.xml | 1 .../journaling_log.asciidoc | 836 ++++++++++++++++++++ 2 files changed, 836 insertions(+), 1 deletion(-) diff --git a/design/XFS_Filesystem_Structure/docinfo.xml b/design/XFS_Filesystem_Structure/docinfo.xml index 6620acf..a6a992b 100644 --- a/design/XFS_Filesystem_Structure/docinfo.xml +++ b/design/XFS_Filesystem_Structure/docinfo.xml @@ -85,6 +85,7 @@ Add missing field definitions. Add some missing xfs_db examples. Add an overview of XFS. + Document the journal format. diff --git a/design/XFS_Filesystem_Structure/journaling_log.asciidoc b/design/XFS_Filesystem_Structure/journaling_log.asciidoc index 77c4430..798e3d4 100644 --- a/design/XFS_Filesystem_Structure/journaling_log.asciidoc +++ b/design/XFS_Filesystem_Structure/journaling_log.asciidoc @@ -1,3 +1,837 @@ +[[Journaling_Log]] = Journaling Log - TODO: +[NOTE] +Only v2 log format is covered here. + +The XFS journal exists on disk as a reserved extent of blocks within the +filesystem, or as a separate journal device. The journal itself can be thought +of as a series of log records; each log record contains a part of or a whole +transaction. A transaction consists of a series of log operation headers +(``log items''), formatting structures, and raw data. The first operation in a +transaction establishes the transaction ID and the last operation is a commit +record. The operations recorded between the start and commit operations +represent the metadata changes made by the transaction. If the commit +operation is missing, the transaction is incomplete and cannot be recovered. + +[[Log_Records]] +== Log Records + +The XFS log is split into a series of log records. Log records seem to +correspond to an in-core log buffer, which can be up to 256KiB in size. Each +record has a log sequence number, which is the same LSN recorded in the v5 +metadata integrity fields. + +Log sequence numbers are a 64-bit quantity consisting of two 32-bit quantities. +The upper 32 bits are the ``cycle number'', which increments every time XFS +cycles through the log. The lower 32 bits are the ``block number'', which is +assigned when a transaction is committed, and should correspond to the block +offset within the log. + +A log record begins with the following header, which occupies 512 bytes on +disk: + +[source, c] +---- +typedef struct xlog_rec_header { + __be32 h_magicno; + __be32 h_cycle; + __be32 h_version; + __be32 h_len; + __be64 h_lsn; + __be64 h_tail_lsn; + __le32 h_crc; + __be32 h_prev_block; + __be32 h_num_logops; + __be32 h_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; + /* new fields */ + __be32 h_fmt; + uuid_t h_fs_uuid; + __be32 h_size; +} xlog_rec_header_t; +---- + +*h_magicno*:: +The magic number of log records, 0xfeedbabe. + +*h_cycle*:: +Cycle number of this log record. + +*h_version*:: +Log record version, currently 2. + +*h_len*:: +Length of the log record, in bytes. Must be aligned to a 64-bit boundary. + +*h_lsn*:: +Log sequence number of this record. + +*h_tail_lsn*:: +Log sequence number of the first log record with uncommitted buffers. + +*h_crc*:: +Checksum of the log record header, the cycle data, and the log records +themselves. + +*h_prev_block*:: +Block number of the previous log record. + +*h_num_logops*:: +The number of log operations in this record. + +*h_cycle_data*:: +The first u32 of each log sector must contain the cycle number. Since log +item buffers are formatted without regard to this requirement, the original +contents of the first four bytes of each sector in the log are copied into the +corresponding element of this array. After that, the first four bytes of those +sectors are stamped with the cycle number. This process is reversed at +recovery time. If there are more sectors in this log record than there are +slots in this array, the cycle data continues for as many sectors are needed; +each sector is formatted as type +xlog_rec_ext_header+. + +*h_fmt*:: +Format of the log record. This is one of the following values: + +.Log record formats +[options="header"] +|===== +| Format value | Log format +| +XLOG_FMT_UNKNOWN+ | Unknown. Perhaps this log is corrupt. +| +XLOG_FMT_LINUX_LE+ | Little-endian Linux. +| +XLOG_FMT_LINUX_BE+ | Big-endian Linux. +| +XLOG_FMT_IRIX_BE+ | Big-endian Irix. +|===== + +*h_fs_uuid*:: +Filesystem UUID. + +*h_size*:: +In-core log record size. This is somewhere between 16 and 256KiB, with 32KiB +being the default. + +As mentioned earlier, if this log record is longer than 256 sectors, the cycle +data overflows into the next sector(s) in the log. Each of those sectors is +formatted as follows: + +[source, c] +---- +typedef struct xlog_rec_ext_header { + __be32 xh_cycle; + __be32 xh_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; +} xlog_rec_ext_header_t; +---- + +*xh_cycle*:: +Cycle number of this log record. Should match +h_cycle+. + +*xh_cycle_data*:: +Overflow cycle data. + +[[Log_Operations]] +== Log Operations + +Within a log record, log operations are recorded as a series consisting of an +operation header immediately followed by a data region. The operation header +has the following format: + +[source, c] +---- +typedef struct xlog_op_header { + __be32 oh_tid; + __be32 oh_len; + __u8 oh_clientid; + __u8 oh_flags; + __u16 oh_res2; +} xlog_op_header_t; +---- + +*oh_tid*:: +Transaction ID of this operation. + +*oh_len*:: +Number of bytes in the data region. + +*oh_clientid*:: +The originator of this operation. This can be one of the following: + +.Log Operation Client ID +[options="header"] +|===== +| Client ID | Originator +| +XFS_TRANSACTION+ | Operation came from a transaction. +| +XFS_VOLUME+ | ??? +| +XFS_LOG+ | ??? +|===== + +*oh_flags*:: +Specifies flags associated with this operation. This can be a combination of +the following values (though most likely only one will be set at a time): + +.Log Operation Flags +[options="header"] +|===== +| Flag | Description +| +XLOG_START_TRANS+ | Start a new transaction. The next operation header should describe a transaction header. +| +XLOG_COMMIT_TRANS+ | Commit this transaction. +| +XLOG_CONTINUE_TRANS+ | Continue this trans into new log record. +| +XLOG_WAS_CONT_TRANS+ | This transaction started in a previous log record. +| +XLOG_END_TRANS+ | End of a continued transaction. +| +XLOG_UNMOUNT_TRANS+ | Transaction to unmount a filesystem. +|===== + +*oh_res2*:: +Padding. + +The data region follows immediately after the operation header and is exactly ++oh_len+ bytes long. These payloads are in host-endian order, which means that +one cannot replay the log from an unclean XFS filesystem on a system with a +different byte order. + +[[Log_Items]] +== Log Items + +Following are the types of log item payloads that can follow an ++xlog_op_header+. Except for buffer data and inode cores, all log items have a +magic number to distinguish themselves. Buffer data items only appear after ++xfs_buf_log_format+ items; and inode core items only appear after ++xfs_inode_log_format+ items. + +.Log Operation Magic Numbers +[options="header"] +|===== +| Magic | Hexadecimal | Operation Type +| +XFS_TRANS_HEADER_MAGIC+ | 0x5452414e | xref:Log_Transaction_Headers[Log Transaction Header] +| +XFS_LI_EFI+ | 0x1236 | xref:EFI_Log_Item[Extent Freeing Intent] +| +XFS_LI_EFD+ | 0x1237 | xref:EFD_Log_Item[Extent Freeing Done] +| +XFS_LI_IUNLINK+ | 0x1238 | Unknown? +| +XFS_LI_INODE+ | 0x123b | xref:Inode_Log_Item[Inode Updates] +| +XFS_LI_BUF+ | 0x123c | xref:Buffer_Log_Item[Buffer Writes] +| +XFS_LI_DQUOT+ | 0x123d | xref:Quota_Update_Log_Item[Update Quota] +| +XFS_LI_QUOTAOFF+ | 0x123e | xref:Quota_Off_Log_Item[Quota Off] +| +XFS_LI_ICREATE+ | 0x123f | xref:Inode_Create_Log_Item[Inode Creation] +|===== + +[[Log_Transaction_Headers]] +=== Transaction Headers + +A transaction header is an operation payload that starts a transaction. + +[source, c] +---- +typedef struct xfs_trans_header { + uint th_magic; + uint th_type; + __int32_t th_tid; + uint th_num_items; +} xfs_trans_header_t; +---- + +*th_magic*:: +The signature of a transaction header, ``TRAN'' (0x5452414e). Note that this +value is in host-endian order, not big-endian like the rest of XFS. + +*th_type*:: +Transaction type. This is one of the following values: + +[options="header"] +|===== +| Type | Description +| +XFS_TRANS_SETATTR_NOT_SIZE+ | Set an inode attribute that isn't the inode's size. +| +XFS_TRANS_SETATTR_SIZE+ | Setting the size attribute of an inode. +| +XFS_TRANS_INACTIVE+ | Freeing blocks from an unlinked inode. +| +XFS_TRANS_CREATE+ | Create a file. +| +XFS_TRANS_CREATE_TRUNC+ | Unused? +| +XFS_TRANS_TRUNCATE_FILE+ | Truncate a quota file. +| +XFS_TRANS_REMOVE+ | Remove a file. +| +XFS_TRANS_LINK+ | Link an inode into a directory. +| +XFS_TRANS_RENAME+ | Rename a path. +| +XFS_TRANS_MKDIR+ | Create a directory. +| +XFS_TRANS_RMDIR+ | Remove a directory. +| +XFS_TRANS_SYMLINK+ | Create a symbolic link. +| +XFS_TRANS_SET_DMATTRS+ | Set the DMAPI attributes of an inode. +| +XFS_TRANS_GROWFS+ | Expand the filesystem. +| +XFS_TRANS_STRAT_WRITE+ | Convert an unwritten extent or delayed-allocate some blocks to handle a write. +| +XFS_TRANS_DIOSTRAT+ | Allocate some blocks to handle a direct I/O write. +| +XFS_TRANS_WRITEID+ | Update an inode's preallocation flag. +| +XFS_TRANS_ADDAFORK+ | Add an attribute fork to an inode. +| +XFS_TRANS_ATTRINVAL+ | Erase the attribute fork of an inode. +| +XFS_TRANS_ATRUNCATE+ | Unused? +| +XFS_TRANS_ATTR_SET+ | Set an extended attribute. +| +XFS_TRANS_ATTR_RM+ | Remove an extended attribute. +| +XFS_TRANS_ATTR_FLAG+ | Unused? +| +XFS_TRANS_CLEAR_AGI_BUCKET+ | Clear a bad inode pointer in the AGI unlinked inode hash bucket. +| +XFS_TRANS_SB_CHANGE+ | Write the superblock to disk. +| +XFS_TRANS_QM_QUOTAOFF+ | Start disabling quotas. +| +XFS_TRANS_QM_DQALLOC+ | Allocate a disk quota structure. +| +XFS_TRANS_QM_SETQLIM+ | Adjust quota limits. +| +XFS_TRANS_QM_DQCLUSTER+ | Unused? +| +XFS_TRANS_QM_QINOCREATE+ | Create a (quota) inode with reference taken. +| +XFS_TRANS_QM_QUOTAOFF_END+ | Finish disabling quotas. +| +XFS_TRANS_FSYNC_TS+ | Update only inode timestamps. +| +XFS_TRANS_GROWFSRT_ALLOC+ | Grow the realtime bitmap and summary data for growfs. +| +XFS_TRANS_GROWFSRT_ZERO+ | Zero space in the realtime bitmap and summary data. +| +XFS_TRANS_GROWFSRT_FREE+ | Free space in the realtime bitmap and summary data. +| +XFS_TRANS_SWAPEXT+ | Swap data fork of two inodes. +| +XFS_TRANS_CHECKPOINT+ | Checkpoint the log. +| +XFS_TRANS_ICREATE+ | Unknown? +| +XFS_TRANS_CREATE_TMPFILE+ | Create a temporary file. +|===== + +*th_tid*:: +Transaction ID. + +*th_num_items*:: +The number of operations appearing after this operation, not including the +commit operation. In effect, this tracks the number of metadata change +operations in this transaction. + +[[EFI_Log_Item]] +=== Intent to Free an Extent + +The next two operation types work together to handle the freeing of filesystem +blocks. Naturally, the ranges of blocks to be freed can be expressed in terms +of extents: + +[source, c] +---- +typedef struct xfs_extent_32 { + __uint64_t ext_start; + __uint32_t ext_len; +} __attribute__((packed)) xfs_extent_32_t; + +typedef struct xfs_extent_64 { + __uint64_t ext_start; + __uint32_t ext_len; + __uint32_t ext_pad; +} xfs_extent_64_t; +---- + +*ext_start*:: +Start block of this extent. + +*ext_len*:: +Length of this extent. + +The ``extent freeing intent'' operation comes first; it tells the log that XFS +wants to free some extents. This record is crucial for correct log recovery +because it prevents the log from replaying blocks that are subsequently freed. +If the log lacks a corresponding ``extent freeing done'' operation, the +recovery process will free the extents. + +[source, c] +---- +typedef struct xfs_efi_log_format { + __uint16_t efi_type; + __uint16_t efi_size; + __uint32_t efi_nextents; + __uint64_t efi_id; + xfs_extent_t efi_extents[1]; +} xfs_efi_log_format_t; +---- + +*efi_type*:: +The signature of an EFI operation, 0x1236. This value is in host-endian order, +not big-endian like the rest of XFS. + +*efi_size*:: +Size of this log item. Should be 1. + +*efi_nextents*:: +Number of extents to free. + +*efi_id*:: +A 64-bit number that binds the corresponding EFD log item to this EFI log item. + +*efi_extents*:: +Variable-length array of extents to be freed. The array length is given by ++efi_nextents+. The record type will be either +xfs_extent_64_t+ or ++xfs_extent_32_t+; this can be determined from the log item size (+oh_len+) and +the number of extents (+efi_nextents+). + +[[EFD_Log_Item]] +=== Completion of Intent to Free an Extent + +The ``extent freeing done'' operation complements the ``extent freeing intent'' +operation. This second operation indicates that the block freeing actually +happened, so that log recovery needn't try to free the blocks. Typically, the +operations to update the free space B+trees follow immediately after the EFD. + +[source, c] +---- +typedef struct xfs_efd_log_format { + __uint16_t efd_type; + __uint16_t efd_size; + __uint32_t efd_nextents; + __uint64_t efd_efi_id; + xfs_extent_t efd_extents[1]; +} xfs_efd_log_format_t; +---- + +*efd_type*:: +The signature of an EFI operation, 0x1236. This value is in host-endian order, +not big-endian like the rest of XFS. + +*efd_size*:: +Size of this log item. Should be 1. + +*efd_nextents*:: +Number of extents to free. + +*efd_id*:: +A 64-bit number that binds the corresponding EFI log item to this EFD log item. + +*efd_extents*:: +Variable-length array of extents to be freed. The array length is given by ++efi_nextents+. The record type will be either +xfs_extent_64_t+ or ++xfs_extent_32_t+; this can be determined from the log item size (+oh_len+) and +the number of extents (+efi_nextents+). + +[[Inode_Log_Item]] +=== Inode Updates + +This operation records changes to an inode record. There are several types of +inode updates, each corresponding to different parts of the inode record. +Allowing updates to proceed at a sub-inode granularity reduces contention for +the inode, since different parts of the inode can be updated simultaneously. + +The actual buffer data are stored in subsequent log items. + +The inode log format header is as follows: + +[source, c] +---- +typedef struct xfs_inode_log_format_64 { + __uint16_t ilf_type; + __uint16_t ilf_size; + __uint32_t ilf_fields; + __uint16_t ilf_asize; + __uint16_t ilf_dsize; + __uint32_t ilf_pad; + __uint64_t ilf_ino; + union { + __uint32_t ilfu_rdev; + uuid_t ilfu_uuid; + } ilf_u; + __int64_t ilf_blkno; + __int32_t ilf_len; + __int32_t ilf_boffset; +} xfs_inode_log_format_64_t; +---- + +*ilf_type*:: +The signature of an inode update operation, 0x123b. This value is in +host-endian order, not big-endian like the rest of XFS. + +*ilf_size*:: +Number of operations involved in this update, including this format operation. + +*ilf_fields*:: +Specifies which parts of the inode are being updated. This can be certain +combinations of the following: + +[options="header"] +|===== +| Flag | Inode changes to log include: +| +XFS_ILOG_CORE+ | The standard inode fields. +| +XFS_ILOG_DDATA+ | Data fork's local data. +| +XFS_ILOG_DEXT+ | Data fork's extent list. +| +XFS_ILOG_DBROOT+ | Data fork's B+tree root. +| +XFS_ILOG_DEV+ | Data fork's device number. +| +XFS_ILOG_UUID+ | Data fork's UUID contents. +| +XFS_ILOG_ADATA+ | Attribute fork's local data. +| +XFS_ILOG_AEXT+ | Attribute fork's extent list. +| +XFS_ILOG_ABROOT+ | Attribute fork's B+tree root. +| +XFS_ILOG_DOWNER+ | Change the data fork owner on replay. +| +XFS_ILOG_AOWNER+ | Change the attr fork owner on replay. +| +XFS_ILOG_TIMESTAMP+ | Timestamps are dirty, but not necessarily anything else. Should never appear on disk. +| +XFS_ILOG_NONCORE+ | ( +XFS_ILOG_DDATA+ \| +XFS_ILOG_DEXT+ \| +XFS_ILOG_DBROOT+ \| +XFS_ILOG_DEV+ \| +XFS_ILOG_UUID+ \| +XFS_ILOG_ADATA+ \| +XFS_ILOG_AEXT+ \| +XFS_ILOG_ABROOT+ \| +XFS_ILOG_DOWNER+ \| +XFS_ILOG_AOWNER+ ) +| +XFS_ILOG_DFORK+ | ( +XFS_ILOG_DDATA+ \| +XFS_ILOG_DEXT+ \| +XFS_ILOG_DBROOT+ ) +| +XFS_ILOG_AFORK+ | ( +XFS_ILOG_ADATA+ \| +XFS_ILOG_AEXT+ \| +XFS_ILOG_ABROOT+ ) +| +XFS_ILOG_ALL+ | ( +XFS_ILOG_CORE+ \| +XFS_ILOG_DDATA+ \| +XFS_ILOG_DEXT+ \| +XFS_ILOG_DBROOT+ \| +XFS_ILOG_DEV+ \| +XFS_ILOG_UUID+ \| +XFS_ILOG_ADATA+ \| +XFS_ILOG_AEXT+ \| +XFS_ILOG_ABROOT+ \| +XFS_ILOG_TIMESTAMP+ \| +XFS_ILOG_DOWNER+ \| +XFS_ILOG_AOWNER+ ) +|===== + +*ilf_asize*:: +Size of the attribute fork, in bytes. + +*ilf_dsize*:: +Size of the data fork, in bytes. + +*ilf_ino*:: +Absolute node number. + +*ilfu_rdev*:: +Device number information, for a device file update. + +*ilfu_uuid*:: +UUID, for a UUID update? + +*ilf_blkno*:: +Block number of the inode buffer, in sectors. + +*ilf_len*:: +Length of inode buffer, in sectors. + +*ilf_boffset*:: +Byte offset of the inode in the buffer. + +Be aware that there is a nearly identical +xfs_inode_log_format_32+ which may +appear on disk. It is the same as +xfs_inode_log_format_64+, except that it is +missing the +ilf_pad+ field and is 52 bytes long as opposed to 56 bytes. + +[[Inode_Data_Log_Item]] +=== Inode Data Log Item + +This region contains the new contents of a part of an inode, as described in +the xref:Inode_Log_Item[previous section]. There are no magic numbers. + +If +XFS_ILOG_CORE+ is set in +ilf_fields+, the correpsonding data buffer must +be in the format +struct xfs_icdinode+, which has the same format as the first +96 bytes of an xref:On-disk_Inode[inode], but is recorded in host byte order. + +[[Buffer_Log_Item]] +=== Buffer Log Item + +This operation writes parts of a buffer to disk. The regions to write are +tracked in the data map; the actual buffer data are stored in subsequent log +items. + +[source, c] +---- +typedef struct xfs_buf_log_format { + unsigned short blf_type; + unsigned short blf_size; + ushort blf_flags; + ushort blf_len; + __int64_t blf_blkno; + unsigned int blf_map_size; + unsigned int blf_data_map[XFS_BLF_DATAMAP_SIZE]; +} xfs_buf_log_format_t; +---- + +*blf_type*:: +Magic number to specify a buffer log item, 0x123c. + +*blf_size*:: +Number of buffer data items following this item. + +*blf_flags*:: +Specifies flags associated with the buffer item. This can be any of the +following: + +[options="header"] +|===== +| Flag | Description +| +XFS_BLF_INODE_BUF+ | Inode buffer. These must be recovered before replaying items that change this buffer. +| +XFS_BLF_CANCEL+ | Don't recover this buffer, blocks are being freed. +| +XFS_BLF_UDQUOT_BUF+ | User quota buffer, don't recover if there's a subsequent quotaoff. +| +XFS_BLF_PDQUOT_BUF+ | Project quota buffer, don't recover if there's a subsequent quotaoff. +| +XFS_BLF_GDQUOT_BUF+ | Group quota buffer, don't recover if there's a subsequent quotaoff. +|===== + +*blf_len*:: +Number of sectors affected by this buffer. + +*blf_blkno*:: +Block number to write, in sectors. + +*blf_map_size*:: +The size of +blf_data_map+, in 32-bit words. + +*blf_data_map*:: +This variable-sized array acts as a dirty bitmap for the logged buffer. Each +1 bit represents a dirty region in the buffer, and each run of 1 bits +corresponds to a subsequent log item containing the new contents of the buffer +area. Each bit represents +(blf_len * 512) / (blf_map_size * NBBY)+ bytes. + +[[Buffer_Data_Log_Item]] +=== Buffer Data Log Item + +This region contains the new contents of a part of a buffer, as described in +the xref:Buffer_Log_Item[previous section]. There are no magic numbers. + +[[Quota_Update_Log_Item]] +=== Update Quota File + +This updates a block in a quota file. The buffer data must be in the next log +item. + +[source, c] +---- +typedef struct xfs_dq_logformat { + __uint16_t qlf_type; + __uint16_t qlf_size; + xfs_dqid_t qlf_id; + __int64_t qlf_blkno; + __int32_t qlf_len; + __uint32_t qlf_boffset; +} xfs_dq_logformat_t; +---- + +*qlf_type*:: +The signature of an inode create operation, 0x123e. This value is in +host-endian order, not big-endian like the rest of XFS. + +*qlf_size*:: +Size of this log item. Should be 2. + +*qlf_id*:: +The user/group/project ID to alter. + +*qlf_blkno*:: +Block number of the quota buffer, in sectors. + +*qlf_len*:: +Length of the quota buffer, in sectors. + +*qlf_boffset*:: +Buffer offset of the quota data to update, in bytes. + +[[Quota_Update_Data_Log_Item]] +=== Quota Update Data Log Item + +This region contains the new contents of a part of a buffer, as described in +the xref:Quota_Update_Log_Item[previous section]. There are no magic numbers. + +[[Quota_Off_Log_Item]] +=== Disable Quota Log Item + +A request to disable quota controls has the following format: + +[source, c] +---- +typedef struct xfs_qoff_logformat { + unsigned short qf_type; + unsigned short qf_size; + unsigned int qf_flags; + char qf_pad[12]; +} xfs_qoff_logformat_t; +---- + +*qf_type*:: +The signature of an inode create operation, 0x123d. This value is in +host-endian order, not big-endian like the rest of XFS. + +*qf_size*:: +Size of this log item. Should be 1. + +*qf_flags*:: +Specifies which quotas are being turned off. Can be a combination of the +following: + +[options="header"] +|===== +| Flag | Quota type to disable +| +XFS_UQUOTA_ACCT+ | User quotas. +| +XFS_PQUOTA_ACCT+ | Project quotas. +| +XFS_GQUOTA_ACCT+ | Group quotas. +|===== + +[[Inode_Create_Log_Item]] +=== Inode Creation Log Item + +This log item is created when inodes are allocated in-core. When replaying +this item, the specified inode records will be zeroed and some of the inode +fields populated with default values. + +[source, c] +---- +struct xfs_icreate_log { + __uint16_t icl_type; + __uint16_t icl_size; + __be32 icl_ag; + __be32 icl_agbno; + __be32 icl_count; + __be32 icl_isize; + __be32 icl_length; + __be32 icl_gen; +}; +---- + +*icl_type*:: +The signature of an inode create operation, 0x123f. This value is in +host-endian order, not big-endian like the rest of XFS. + +*icl_size*:: +Size of this log item. Should be 1. + +*icl_ag*:: +AG number of the inode chunk to create. + +*icl_agbno*:: +AG block number of the inode chunk. + +*icl_count*:: +Number of inodes to initialize. + +*icl_isize*:: +Size of each inode, in bytes. + +*icl_length*:: +Length of the extent being initialized, in blocks. + +*icl_gen*:: +Inode generation number to write into the new inodes. + +== xfs_logprint Example + +Here's an example of dumping the XFS log contents with +xfs_logprint+: + +---- +# xfs_logprint /dev/sda +xfs_logprint: /dev/sda contains a mounted and writable filesystem +xfs_logprint: + data device: 0xfc03 + log device: 0xfc03 daddr: 900931640 length: 879816 + +cycle: 48 version: 2 lsn: 48,0 tail_lsn: 47,879760 +length of Log Record: 19968 prev offset: 879808 num ops: 53 +uuid: 24afeec2-f418-46a2-a573-10091f5e200e format: little endian linux +h_size: 32768 +---- + +This is the log record header. + +---- +Oper (0): tid: 30483aec len: 0 clientid: TRANS flags: START +---- + +This operation indicates that we're starting a transaction, so the next +operation should record the transaction header. + +---- +Oper (1): tid: 30483aec len: 16 clientid: TRANS flags: none +TRAN: type: CHECKPOINT tid: 30483aec num_items: 50 +---- + +This operation records a transaction header. There should be fifty operations +in this transaction and the transaction ID is 0x30483aec. + +---- +Oper (2): tid: 30483aec len: 24 clientid: TRANS flags: none +BUF: #regs: 2 start blkno: 145400496 (0x8aaa2b0) len: 8 bmap size: 1 flags: 0x2000 +Oper (3): tid: 30483aec len: 3712 clientid: TRANS flags: none +BUF DATA +... +Oper (4): tid: 30483aec len: 24 clientid: TRANS flags: none +BUF: #regs: 3 start blkno: 59116912 (0x3860d70) len: 8 bmap size: 1 flags: 0x2000 +Oper (5): tid: 30483aec len: 128 clientid: TRANS flags: none +BUF DATA + 0 43544241 49010000 fa347000 2c357000 3a40b200 13000000 2343c200 13000000 + 8 3296d700 13000000 375deb00 13000000 8a551501 13000000 56be1601 13000000 +10 af081901 13000000 ec741c01 13000000 9e911c01 13000000 69073501 13000000 +18 4e539501 13000000 6549501 13000000 5d0e7f00 14000000 c6908200 14000000 + +Oper (6): tid: 30483aec len: 640 clientid: TRANS flags: none +BUF DATA + 0 7f47c800 21000000 23c0e400 21000000 2d0dfe00 21000000 e7060c01 21000000 + 8 34b91801 21000000 9cca9100 22000000 26e69800 22000000 4c969900 22000000 +... +90 1cf69900 27000000 42f79c00 27000000 6a99e00 27000000 6a99e00 27000000 +98 6a99e00 27000000 6a99e00 27000000 6a99e00 27000000 6a99e00 27000000 +---- + +Operations 4-6 describe two updates to a single dirty buffer at disk address +59,116,912. The first chunk of dirty data is 128 bytes long. Notice how the +first four bytes of the first chunk is 0x43544241? Remembering that log items +are in host byte order, reverse that to 0x41425443, which is the magic number +for the free space B+tree ordered by size. + +The second chunk is 640 bytes. There are more buffer changes, so we'll skip +ahead a few operations: + +---- +Oper (19): tid: 30483aec len: 56 clientid: TRANS flags: none +INODE: #regs: 2 ino: 0x63a73b4e flags: 0x1 dsize: 40 + blkno: 1412688704 len: 16 boff: 7168 +Oper (20): tid: 30483aec len: 96 clientid: TRANS flags: none +INODE CORE +magic 0x494e mode 0100600 version 2 format 3 +nlink 1 uid 1000 gid 1000 +atime 0x5633d58d mtime 0x563a391b ctime 0x563a391b +size 0x109dc8 nblocks 0x111 extsize 0x0 nextents 0x1b +naextents 0x0 forkoff 0 dmevmask 0x0 dmstate 0x0 +flags 0x0 gen 0x389071be +---- + +This is an update to the core of inode 0x63a73b4e. There were similar inode +core updates after this, so we'll skip ahead a bit: + +---- +Oper (32): tid: 30483aec len: 56 clientid: TRANS flags: none +INODE: #regs: 3 ino: 0x4bde428 flags: 0x5 dsize: 16 + blkno: 79553568 len: 16 boff: 4096 +Oper (33): tid: 30483aec len: 96 clientid: TRANS flags: none +INODE CORE +magic 0x494e mode 0100644 version 2 format 2 +nlink 1 uid 1000 gid 1000 +atime 0x563a3924 mtime 0x563a3931 ctime 0x563a3931 +size 0x1210 nblocks 0x2 extsize 0x0 nextents 0x1 +naextents 0x0 forkoff 0 dmevmask 0x0 dmstate 0x0 +flags 0x0 gen 0x2829c6f9 +Oper (34): tid: 30483aec len: 16 clientid: TRANS flags: none +EXTENTS inode data +---- + +This inode update changes both the core and also the data fork. Since we're +changing the block map, it's unsurprising that one of the subsequent operations +is an EFI: + +---- +Oper (37): tid: 30483aec len: 32 clientid: TRANS flags: none +EFI: #regs: 1 num_extents: 1 id: 0xffff8801147b5c20 +(s: 0x720daf, l: 1) +\---------------------------------------------------------------------------- +Oper (38): tid: 30483aec len: 32 clientid: TRANS flags: none +EFD: #regs: 1 num_extents: 1 id: 0xffff8801147b5c20 +\---------------------------------------------------------------------------- +Oper (39): tid: 30483aec len: 24 clientid: TRANS flags: none +BUF: #regs: 2 start blkno: 8 (0x8) len: 8 bmap size: 1 flags: 0x2800 +Oper (40): tid: 30483aec len: 128 clientid: TRANS flags: none +AGF Buffer: XAGF +ver: 1 seq#: 0 len: 56308224 +root BNO: 18174905 CNT: 18175030 +level BNO: 2 CNT: 2 +1st: 41 last: 46 cnt: 6 freeblks: 35790503 longest: 19343245 +\---------------------------------------------------------------------------- +Oper (41): tid: 30483aec len: 24 clientid: TRANS flags: none +BUF: #regs: 3 start blkno: 145398760 (0x8aa9be8) len: 8 bmap size: 1 flags: 0x2000 +Oper (42): tid: 30483aec len: 128 clientid: TRANS flags: none +BUF DATA +Oper (43): tid: 30483aec len: 128 clientid: TRANS flags: none +BUF DATA +\---------------------------------------------------------------------------- +Oper (44): tid: 30483aec len: 24 clientid: TRANS flags: none +BUF: #regs: 3 start blkno: 145400224 (0x8aaa1a0) len: 8 bmap size: 1 flags: 0x2000 +Oper (45): tid: 30483aec len: 128 clientid: TRANS flags: none +BUF DATA +Oper (46): tid: 30483aec len: 3584 clientid: TRANS flags: none +BUF DATA +\---------------------------------------------------------------------------- +Oper (47): tid: 30483aec len: 24 clientid: TRANS flags: none +BUF: #regs: 3 start blkno: 59066216 (0x3854768) len: 8 bmap size: 1 flags: 0x2000 +Oper (48): tid: 30483aec len: 128 clientid: TRANS flags: none +BUF DATA +Oper (49): tid: 30483aec len: 768 clientid: TRANS flags: none +BUF DATA +---- + +Here we see an EFI, followed by an EFD, followed by updates to the AGF and the +free space btrees. Most probably, we just unmapped a few blocks from a file. + +---- +Oper (50): tid: 30483aec len: 56 clientid: TRANS flags: none +INODE: #regs: 2 ino: 0x3906f20 flags: 0x1 dsize: 16 + blkno: 59797280 len: 16 boff: 0 +Oper (51): tid: 30483aec len: 96 clientid: TRANS flags: none +INODE CORE +magic 0x494e mode 0100644 version 2 format 2 +nlink 1 uid 1000 gid 1000 +atime 0x563a3938 mtime 0x563a3938 ctime 0x563a3938 +size 0x0 nblocks 0x0 extsize 0x0 nextents 0x0 +naextents 0x0 forkoff 0 dmevmask 0x0 dmstate 0x0 +flags 0x0 gen 0x35ed661 +\---------------------------------------------------------------------------- +Oper (52): tid: 30483aec len: 0 clientid: TRANS flags: COMMIT +---- + +One more inode core update and this transaction commits. From darrick.wong@oracle.com Wed Nov 11 13:24:26 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3724729E06 for ; Wed, 11 Nov 2015 13:24:26 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0EA438F8035 for ; Wed, 11 Nov 2015 11:24:26 -0800 (PST) X-ASG-Debug-ID: 1447269864-04bdf03f02121300001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id hENX9foAFlX9stZa (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:24:24 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJO2BG025548 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:24:03 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJO2BV020193 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:24:02 GMT Received: from abhmp0007.oracle.com (abhmp0007.oracle.com [141.146.116.13]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABJO2gT014494; Wed, 11 Nov 2015 19:24:02 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:24:02 -0800 Subject: [PATCH 14/21] xfsdocs: document the operation of the realtime device and inodes From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 14/21] xfsdocs: document the operation of the realtime device and inodes To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:23:57 -0800 Message-ID: <20151111192357.14235.4600.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447269864 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 17 +++++++++- design/XFS_Filesystem_Structure/docinfo.xml | 1 + .../internal_inodes.asciidoc | 35 +++++++++++--------- 3 files changed, 36 insertions(+), 17 deletions(-) diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index 346f1b2..9ba26c2 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -909,5 +909,18 @@ been fully allocated. [[Real-time_Devices]] == Real-time Devices -TODO - +The performance of the standard XFS allocator varies depending on the internal +state of the various metadata indices enabled on the filesystem. For +applications which need to minimize the jitter of allocation latency, XFS +supports the notion of a ``real-time device''. This is a special device +separate from the regular filesystem where extent allocations are tracked with +a bitmap and free space is indexed with a two-dimensional array. If an inode +is flagged with +XFS_DIFLAG_REALTIME+, its data will live on the real time +device. The metadata for real time devices is discussed in the section about +xref:Real-time_Inodes[real time inodes]. + +By placing the real time device (and the journal) on separate high-performance +storage devices, it is possible to reduce most of the unpredictability in I/O +response times that come from metadata operations. + +None of the XFS per-AG B+trees are involved with real time files. diff --git a/design/XFS_Filesystem_Structure/docinfo.xml b/design/XFS_Filesystem_Structure/docinfo.xml index a6a992b..9bcecad 100644 --- a/design/XFS_Filesystem_Structure/docinfo.xml +++ b/design/XFS_Filesystem_Structure/docinfo.xml @@ -86,6 +86,7 @@ Add some missing xfs_db examples. Add an overview of XFS. Document the journal format. + Document the realtime device. diff --git a/design/XFS_Filesystem_Structure/internal_inodes.asciidoc b/design/XFS_Filesystem_Structure/internal_inodes.asciidoc index 837f025..c21f8b4 100644 --- a/design/XFS_Filesystem_Structure/internal_inodes.asciidoc +++ b/design/XFS_Filesystem_Structure/internal_inodes.asciidoc @@ -160,24 +160,29 @@ Bitmap Inode and the Summary Inode. [[Real-Time_Bitmap_Inode]] === Real-Time Bitmap Inode -The Bitmap Inode tracks the used/free space in the real-time device using an -old-style bitmap. One bit is allocated per real-time extent. The size of an -extent is specified by the superblock's +sb_rextsize+ value. +The real time bitmap inode, +sb_rbmino+, tracks the used/free space in the +real-time device using an old-style bitmap. One bit is allocated per real-time +extent. The size of an extent is specified by the superblock's +sb_rextsize+ +value. The number of blocks used by the bitmap inode is equal to the number of -real-time extents (+sb_rextents+) divided by the block size (+sb_blocksize+) and -bits per byte. This value is stored in +sb_rbmblocks+. The nblocks and extent -array for the inode should match this. - -[source, c] - xfs_ino_t sb_rbmino; +real-time extents (+sb_rextents+) divided by the block size (+sb_blocksize+) +and bits per byte. This value is stored in +sb_rbmblocks+. The nblocks and +extent array for the inode should match this. Each real time block gets its +own bit in the bitmap. [[Real-Time_Summary_Inode]] === Real-Time Summary Inode -The Summary Inode keeps the used/free space accounting information for the -real-time device. - -[source, c] - xfs_ino_t sb_rsumino; - +The real time summary inode, +sb_rsumino+, tracks the used and free space +accounting information for the real-time device. This file indexes the +approximate location of each free extent on the real-time device first by +log2(extent size) and then by the real-time bitmap block number. The size of +the summary inode file is equal to +sb_rbmblocks+ × log2(realtime device size) +× sizeof(+xfs_suminfo_t+). The entry for a given log2(extent size) and +rtbitmap block number is 0 if there is no free extents of that size at that +rtbitmap location, and positive if there are any. + +This data structure is not particularly space efficient, however it is a very +fast way to provide the same data as the two free space B+trees for regular +files since the space is preallocated and metadata maintenance is minimal. From darrick.wong@oracle.com Wed Nov 11 13:24:37 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 30F6729DFC for ; Wed, 11 Nov 2015 13:24:37 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id D3CE9AC005 for ; Wed, 11 Nov 2015 11:24:36 -0800 (PST) X-ASG-Debug-ID: 1447269871-04bdf03f03121310001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id BD7fCrCr8NHfIUU7 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:24:32 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJOAsk025734 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:24:10 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJO9qY020425 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:24:10 GMT Received: from abhmp0004.oracle.com (abhmp0004.oracle.com [141.146.116.10]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJO9q2018572; Wed, 11 Nov 2015 19:24:09 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:24:08 -0800 Subject: [PATCH 15/21] xfsdocs: add documentation of v5 fields From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 15/21] xfsdocs: add documentation of v5 fields To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:24:07 -0800 Message-ID: <20151111192407.14235.89932.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447269872 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Document the new fields and data structures added in XFS v5 filesystems. Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 223 +++++++++++++++++++ .../XFS_Filesystem_Structure/data_extents.asciidoc | 35 +++ .../XFS_Filesystem_Structure/directories.asciidoc | 230 +++++++++++++++++++- design/XFS_Filesystem_Structure/docinfo.xml | 16 + .../extended_attributes.asciidoc | 81 +++++++ .../internal_inodes.asciidoc | 15 + .../XFS_Filesystem_Structure/ondisk_inode.asciidoc | 62 +++++ .../symbolic_links.asciidoc | 45 ++++ 8 files changed, 675 insertions(+), 32 deletions(-) diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index 9ba26c2..845b359 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -40,8 +40,6 @@ superblock is one sector in length. The superblock is defined by the following structure. The description of each field follows. -TODO: update for v5 formats. - [source, c] ---- struct xfs_sb @@ -91,6 +89,20 @@ struct xfs_sb __uint16_t sb_logsectsize; __uint32_t sb_logsunit; __uint32_t sb_features2; + __uint32_t sb_bad_features2; + + /* version 5 superblock fields start here */ + __uint32_t sb_features_compat; + __uint32_t sb_features_ro_compat; + __uint32_t sb_features_incompat; + __uint32_t sb_features_log_incompat; + + __uint32_t sb_crc; + xfs_extlen_t sb_spino_align; + + xfs_ino_t sb_pquotino; + xfs_lsn_t sb_lsn; + uuid_t sb_meta_uuid; }; ---- *sb_magicnum*:: @@ -152,8 +164,8 @@ Number of blocks for the journaling log. Filesystem version number. This is a bitmask specifying the features enabled when creating the filesystem. Any disk checking tools or drivers that do not recognize any set bits must not operate upon the filesystem. Most of the flags -indicate features introduced over time. If the value of the lower nibble is 4, -the higher bits indicate feature flags as follows: +indicate features introduced over time. If the value of the lower nibble is >= +4, the higher bits indicate feature flags as follows: .Version 4 Superblock version flags [options="header"] @@ -178,13 +190,17 @@ Version 2 directories are used. This is always set. Set if the sb_features2 field in the superblock contains more flags. |===== +If the lower nibble of this value is 5, then this is a v5 filesystem; the ++XFS_SB_VERSION2_CRCBIT+ feature must be set in +sb_features2+. + *sb_sectsize*:: Specifies the underlying disk sector size in bytes. Typically this is 512 or 4096 bytes. This determines the minimum I/O alignment, especially for direct I/O. *sb_inodesize*:: Size of the inode in bytes. The default is 256 (2 inodes per standard sector) -but can be made as large as 2048 bytes when creating the filesystem. +but can be made as large as 2048 bytes when creating the filesystem. On a v5 +filesystem, the default inode size is 512 bytes. *sb_inopblock*:: Number of inodes per block. This is equivalent to +sb_blocksize / sb_inodesize+. @@ -324,12 +340,81 @@ its parent inode. The primary purpose for this information is in backup systems. can be used to enforce disk space usage quotas for a particular group of directories. This flag indicates that project IDs can be 32 bits in size. +| +XFS_SB_VERSION2_CRCBIT+ | +Metadata checksumming. All metadata blocks have an extended header containing +the block checksum, a copy of the metadata UUID, the log sequence number of the +last update to prevent stale replays, and a back pointer to the owner of the +block. This feature must be and can only be set if the lowest nibble of ++sb_versionnum+ is set to 5. + | +XFS_SB_VERSION2_FTYPE+ | Directory file type. Each directory entry records the type of the inode to which the entry points. This speeds up directory iteration by removing the need to load every inode into memory. |===== +*sb_bad_features2*:: +This field mirrors +sb_features2+, due to past 64-bit alignment errors. + +*sb_features_compat*:: +Read-write compatible feature flags. The kernel can still read and write this +FS even if it doesn't understand the flag. Currently, there are no valid +flags. + +*sb_features_ro_compat*:: +Read-only compatible feature flags. The kernel can still read this FS even if +it doesn't understand the flag. + +.Extended Version 5 Superblock Read-Only compatibility flags +[options="header"] +|===== +| Flag | Description +| +XFS_SB_FEAT_RO_COMPAT_FINOBT+ | +Free inode B+tree. Each allocation group contains a B+tree to track inode chunks +containing free inodes. This is a performance optimization to reduce the time +required to allocate inodes. +|===== + +*sb_features_incompat*:: +Read-write incompatible feature flags. The kernel cannot read or write this +FS if it doesn't understand the flag. + +.Extended Version 5 Superblock Read-Write incompatibility flags +[options="header"] +|===== +| Flag | Description +| +XFS_SB_FEAT_INCOMPAT_FTYPE+ | +Directory file type. Each directory entry tracks the type of the inode to +which the entry points. This is a performance optimization to remove the need +to load every inode into memory to iterate a directory. + +| +XFS_SB_FEAT_INCOMPAT_META_UUID+ | +Metadata UUID. The UUID stamped into each metadata block must match the value +in +sb_meta_uuid+. This enables the administrator to change +sb_uuid+ at will +without having to rewrite the entire filesystem. +|===== + +*sb_features_log_incompat*:: +Read-write incompatible feature flags for the log. The kernel cannot read or +write this FS log if it doesn't understand the flag. Currently, no flags are +defined. + +*sb_crc*:: +Superblock checksum. + +*sb_spino_align*:: +Sparse inode alignment. + +*sb_pquotino*:: +Project quota inode. + +*sb_lsn*:: +Log sequence number of the last superblock update. + +*sb_meta_uuid*:: +If the +XFS_SB_FEAT_INCOMPAT_META_UUID+ feature is set, then the UUID field in +all metadata blocks must match this UUID. If not, the block header UUID field +must match +sb_uuid+. === xfs_db Superblock Example @@ -405,7 +490,7 @@ features2 = 8 The XFS filesystem tracks free space in an allocation group using two B+trees. One B+tree tracks space by block number, the second by the size of the free -space block. This scheme allows XFS to quickly find free space near a given +space block. This scheme allows XFS to find quickly free space near a given block or of a given size. All block numbers, indexes, and counts are AG relative. @@ -434,6 +519,15 @@ struct xfs_agf { __be32 agf_freeblks; __be32 agf_longest; __be32 agf_btreeblks; + + /* version 5 filesystem fields start here */ + uuid_t agf_uuid; + __be64 agf_spare64[16]; + + /* unlogged fields, written during buffer writeback. */ + __be64 agf_lsn; + __be32 agf_crc; + __be32 agf_spare2; }; ---- @@ -483,6 +577,22 @@ Specifies the number of blocks of longest contiguous free space in the AG. Specifies the number of blocks used for the free space B+trees. This is only used if the +XFS_SB_VERSION2_LAZYSBCOUNTBIT+ bit is set in +sb_features2+. +*agf_uuid*:: +The UUID of this block, which must match either +sb_uuid+ or +sb_meta_uuid+ +depending on which features are set. + +*agf_spare64*:: +Empty space in the logged part of the AGF sector, for use for future features. + +*agf_lsn*:: +Log sequence number of the last AGF write. + +*agf_crc*:: +Checksum of the AGF sector. + +*agf_spare2*:: +Empty space in the unlogged part of the AGF sector. + [[Short_Format_Btrees]] === Short Format B+trees @@ -499,6 +609,13 @@ struct xfs_btree_sblock { __be16 bb_numrecs; __be32 bb_leftsib; __be32 bb_rightsib; + + /* version 5 filesystem fields start here */ + __be64 bb_blkno; + __be64 bb_lsn; + uuid_t bb_uuid; + __be32 bb_owner; + __le32 bb_crc; }; ---- @@ -519,6 +636,22 @@ AG block number of the left sibling of this B+tree node. *bb_rightsib*:: AG block number of the right sibling of this B+tree node. +*bb_blkno*:: +FS block number of this B+tree block. + +*bb_lsn*:: +Log sequence number of the last write to this block. + +*bb_uuid*:: +The UUID of this block, which must match either +sb_uuid+ or +sb_meta_uuid+ +depending on which features are set. + +*bb_owner*:: +The AG number that this B+tree block ought to be in. + +*bb_crc*:: +Checksum of the B+tree block. + [[AG_Free_Space_Btrees]] === AG Free Space B+trees @@ -553,7 +686,9 @@ typedef __be32 xfs_alloc_ptr_t; * As the free space tracking is AG relative, all the block numbers are only 32-bits. * The +bb_magic+ value depends on the B+tree: ``ABTB'' (0x41425442) for the block -offset B+tree, ``ABTC'' (0x41425443) for the block count B+tree. +offset B+tree, ``ABTC'' (0x41425443) for the block count B+tree. On a v5 +filesystem, these are ``AB3B'' (0x41423342) and ``AB3C'' (0x41423343), +respectively. * The +xfs_btree_sblock_t+ header is used for intermediate B+tree node as well as the leaves. * For a typical 4KB filesystem block size, the offset for the +xfs_alloc_ptr_t+ @@ -595,6 +730,38 @@ Active elements in the array are specified by the xref:AG_Free_Space_Block[AGF's] +agf_flfirst+, +agf_fllast+ and +agf_flcount+ values. The array is managed as a circular list. +On a v5 filesystem, the following header precedes the free list entries: + +[source, c] +---- +struct xfs_agfl { + __be32 agfl_magicnum; + __be32 agfl_seqno; + uuid_t agfl_uuid; + __be64 agfl_lsn; + __be32 agfl_crc; +}; +---- + +*agfl_magicnum*:: +Specifies the magic number for the AGFL sector: "XAFL" (0x5841464c). + +*agfl_seqno*:: +Specifies the AG number for the sector. + +*agfl_uuid*:: +The UUID of this block, which must match either +sb_uuid+ or +sb_meta_uuid+ +depending on which features are set. + +*agfl_lsn*:: +Log sequence number of the last AGFL write. + +*agfl_crc*:: +Checksum of the AGFL sector. + +On a v4 filesystem there is no header; the array of free block numbers begins +at the beginning of the sector. + .AG Free List layout image::images/16.png[] @@ -739,6 +906,18 @@ struct xfs_agi { __be32 agi_newino; __be32 agi_dirino; __be32 agi_unlinked[64]; + + /* + * v5 filesystem fields start here; this marks the end of logging region 1 + * and start of logging region 2. + */ + uuid_t agi_uuid; + __be32 agi_crc; + __be32 agi_pad32; + __be64 agi_lsn; + + __be32 agi_free_root; + __be32 agi_free_level; } ---- *agi_magicnum*:: @@ -775,19 +954,45 @@ Deprecated and not used, this is always set to NULL (-1). Hash table of unlinked (deleted) inodes that are still being referenced. Refer to xref:Unlinked_Pointer[unlinked list pointers] for more information. +*agi_uuid*:: +The UUID of this block, which must match either +sb_uuid+ or +sb_meta_uuid+ +depending on which features are set. + +*agi_crc*:: +Checksum of the AGI sector. + +*agi_pad32*:: +Padding field, otherwise unused. + +*agi_lsn*:: +Log sequence number of the last write to this block. + +*agi_free_root*:: +Specifies the block number in the AG containing the root of the free inode +B+tree. + +*agi_free_level*:: +Specifies the number of levels in the free inode B+tree. [[Inode_Btrees]] == Inode B+trees Inodes are allocated in chunks of 64, and a B+tree is used to track these chunks of inodes as they are allocated and freed. The block containing root of the -B+tree is defined by the AGI's +agi_root+ value. +B+tree is defined by the AGI's +agi_root+ value. If the ++XFS_SB_FEAT_RO_COMPAT_FINOBT+ feature is enabled, a second B+tree is used to +track the chunks containing free inodes; this is an optimization to speed up +inode allocation. The B+tree header for the nodes and leaves use the +xfs_btree_sblock+ structure which is the same as the header used in the xref:AG_Free_Space_Btrees[AGF B+trees]. -The magic number of the inode B+tree is ``IABT'' (0x49414254). +The magic number of the inode B+tree is ``IABT'' (0x49414254). On a v5 +filesystem, the magic number is ``IAB3'' (0x49414233). + +The magic number of the free inode B+tree is ``FIBT'' (0x46494254). On a v5 +filesystem, the magic number is ``FIB3'' (0x46494254). Leaves contain an array of the following structure: diff --git a/design/XFS_Filesystem_Structure/data_extents.asciidoc b/design/XFS_Filesystem_Structure/data_extents.asciidoc index af9ba44..a39045d 100644 --- a/design/XFS_Filesystem_Structure/data_extents.asciidoc +++ b/design/XFS_Filesystem_Structure/data_extents.asciidoc @@ -94,8 +94,9 @@ image::images/32.png[] The number of extents that can fit in the inode depends on the inode size and +di_forkoff+. For a default 256 byte inode with no extended attributes, a file -can have up to 9 extents with this format. Beyond this, extents have to use the -B+tree format. +can have up to 9 extents with this format. On a default v5 filesystem with 512 +byte inodes, a file can have up to 21 extents with this format. Beyond that, +extents have to use the B+tree format. === xfs_db Inode Data Fork Extents Example @@ -242,7 +243,7 @@ and the leaves. This will be less if +di_forkoff+ is not zero (i.e. attributes are in use on the inode). [[Long_Format_Btrees]] -== Long Format B+trees +=== Long Format B+trees The subsequent nodes and leaves of the B+tree use the +xfs_btree_lblock+ declaration: @@ -255,11 +256,20 @@ struct xfs_btree_lblock { __be16 bb_numrecs; __be64 bb_leftsib; __be64 bb_rightsib; + + /* version 5 filesystem fields start here */ + __be64 bb_blkno; + __be64 bb_lsn; + uuid_t bb_uuid; + __be64 bb_owner; + __le32 bb_crc; + __be32 bb_pad; }; ---- *bb_magic*:: Specifies the magic number for the BMBT block: ``BMAP'' (0x424d4150). +On a v5 filesystem, this is ``BMA3'' (0x424d4133). *bb_level*:: The level of the tree in which this block is found. If this value is 0, this @@ -275,6 +285,25 @@ FS block number of the left sibling of this B+tree node. *bb_rightsib*:: FS block number of the right sibling of this B+tree node. +*bb_blkno*:: +FS block number of this B+tree block. + +*bb_lsn*:: +Log sequence number of the last write to this block. + +*bb_uuid*:: +The UUID of this block, which must match either +sb_uuid+ or +sb_meta_uuid+ +depending on which features are set. + +*bb_owner*:: +The AG number that this B+tree block ought to be in. + +*bb_crc*:: +Checksum of the B+tree block. + +*bb_pad*:: +Pads the structure to 64 bytes. + // force-split the lists * For intermediate nodes, the data following +xfs_btree_lblock+ is the same as diff --git a/design/XFS_Filesystem_Structure/directories.asciidoc b/design/XFS_Filesystem_Structure/directories.asciidoc index b539535..bccf912 100644 --- a/design/XFS_Filesystem_Structure/directories.asciidoc +++ b/design/XFS_Filesystem_Structure/directories.asciidoc @@ -358,7 +358,7 @@ typedef struct xfs_dir2_block { ---- *hdr*:: -Directory block header. +Directory block header. On a v5 filesystem this is +xfs_dir3_data_hdr_t+. *u*:: Union of directory and unused entries. @@ -383,8 +383,62 @@ Magic number for this directory block. *bestfree*:: An array pointing to free regions in the directory block. +On a v5 filesystem, directory and attribute blocks are formatted with v3 +headers, which contain extra data: + [source, c] ---- +struct xfs_dir3_blk_hdr { + __be32 magic; + __be32 crc; + __be64 blkno; + __be64 lsn; + uuid_t uuid; + __be64 owner; +}; +---- + +*magic*:: +Magic number for this directory block. + +*crc*:: +Checksum of the directory block. + +*blkno*:: +Block number of this directory block. + +*lsn*:: +Log sequence number of the last write to this block. + +*uuid*:: +The UUID of this block, which must match either +sb_uuid+ or +sb_meta_uuid+ +depending on which features are set. + +*owner*:: +The inode number that this directory block belongs to. + +[source, c] +---- +struct xfs_dir3_data_hdr { + struct xfs_dir3_blk_hdr hdr; + xfs_dir2_data_free_t best_free[XFS_DIR2_DATA_FD_COUNT]; + __be32 pad; +}; +---- + +*hdr*:: +The v5 directory/attribute block header. + +*best_free*:: +An array pointing to free regions in the directory block. + +*pad*:: +Padding to maintain a 64-bit alignment. + +Within the block, data structures are as follows: + +[source, c] +----- typedef struct xfs_dir2_data_free { xfs_dir2_data_off_t offset; xfs_dir2_data_off_t length; @@ -494,7 +548,8 @@ Following is a diagram of how these pieces fit together for a block directory. .Block directory layout image::images/43.png[] -* The magic number in the header is ``XD2B'' (0x58443242). +* The magic number in the header is ``XD2B'' (0x58443242), or ``XDB3'' (0x58444233) +on a v5 filesystem. * The +tag+ in the +xfs_dir2_data_entry_t+ structure stores its offset from the start of the block. @@ -736,7 +791,7 @@ Currently, this is 32GB and in the extent view, a block offset of decimal). * Blocks with directory entries (``data'' extents) have the magic number ``X2D2'' -(0x58443244). +(0x58443244), or ``XDD3'' (0x58444433) on a v5 filesystem. * The ``data'' extents have a new header (no ``leaf'' data): @@ -749,7 +804,7 @@ typedef struct xfs_dir2_data { ---- *hdr*:: -Data block header. +Data block header. On a v5 filesystem, this field is +struct xfs_dir3_data_hdr+. *u*:: Union of directory and unused entries, exactly the same as in a block directory. @@ -769,7 +824,8 @@ typedef struct xfs_dir2_leaf { ---- *hdr*:: -Directory leaf header. +Directory leaf header. On a v5 filesystem this is +struct +xfs_dir3_leaf_hdr_t+. *ents*:: Hash values of the entries in this block. @@ -800,6 +856,28 @@ Number of stale/zeroed leaf entries. [source, c] ---- +struct xfs_dir3_leaf_hdr { + struct xfs_da3_blkinfo info; + __uint16_t count; + __uint16_t stale; + __be32 pad; +}; +---- + +*info*:: +Leaf B+tree block header. + +*count*:: +Number of leaf entries. + +*stale*:: +Number of stale/zeroed leaf entries. + +*pad*:: +Padding to maintain alignment rules. + +[source, c] +---- typedef struct xfs_dir2_leaf_tail { __uint32_t bestcount; } xfs_dir2_leaf_tail_t; @@ -839,7 +917,58 @@ Padding to maintain alignment. // split lists -* The magic number of the leaf block is +XFS_DIR2_LEAF1_MAGIC+ (0xd2f1). +* On a v5 filesystem, the leaves use the +struct xfs_da3_blkinfo_t+ filesystem +block header. This header is used in the same place as +xfs_da_blkinfo_t+: + +[source, c] +---- +struct xfs_da3_blkinfo { + /* these values are inside xfs_da_blkinfo */ + __be32 forw; + __be32 back; + __be16 magic; + __be16 pad; + + __be32 crc; + __be64 blkno; + __be64 lsn; + uuid_t uuid; + __be64 owner; +}; +---- + +*forw*:: +Logical block offset of the previous B+tree block at this level. + +*back*:: +Logical block offset of the next B+tree block at this level. + +*magic*:: +Magic number for this directory/attribute block. + +*pad*:: +Padding to maintain alignment. + +*crc*:: +Checksum of the directory/attribute block. + +*blkno*:: +Block number of this directory/attribute block. + +*lsn*:: +Log sequence number of the last write to this block. + +*uuid*:: +The UUID of this block, which must match either +sb_uuid+ or +sb_meta_uuid+ +depending on which features are set. + +*owner*:: +The inode number that this directory/attribute block belongs to. + +// split lists + +* The magic number of the leaf block is +XFS_DIR2_LEAF1_MAGIC+ (0xd2f1); on a +v5 filesystem it is +XFS_DIR3_LEAF1_MAGIC+ (0x3df1). * The size of the +ents+ array is specified by +hdr.count+. @@ -1107,13 +1236,15 @@ each ``data'' block. This is not possible with more than one leaf. * After the ``freeindex'' data moves to its own block, it is possible for the leaf data to fit within a single leaf block. This single leaf block has a -magic number of +XFS_DIR2_LEAFN_MAGIC+ (0xd2ff). +magic number of +XFS_DIR2_LEAFN_MAGIC+ (0xd2ff) or on a v5 filesystem, ++XFS_DIR3_LEAFN_MAGIC+ (0x3dff). * The ``leaf'' blocks eventually change into a B+tree with the generic B+tree header pointing to directory ``leaves'' as described in xref:Leaf_Directories[Leaf Directories]. Blocks with leaf data still have the +LEAFN_MAGIC+ magic number as outlined above. The top-level tree blocks are -called ``nodes'' and have a magic number of +XFS_DA_NODE_MAGIC+ (0xfebe). +called ``nodes'' and have a magic number of +XFS_DA_NODE_MAGIC+ (0xfebe), or on +a v5 filesystem, +XFS_DA3_NODE_MAGIC+ (0x3ebe). * Distinguishing between a combined leaf/freeindex block (+LEAF1_MAGIC+), a leaf-only block (+LEAFN_MAGIC+), and a btree node block (+NODE_MAGIC+) can only @@ -1161,6 +1292,50 @@ An array specifying the best free counts in each directory data block. // split lists +* On a v5 filesystem, the freeindex block uses the following structures: + +[source, c] +---- +struct xfs_dir3_free_hdr { + struct xfs_dir3_blk_hdr hdr; + __int32_t firstdb; + __int32_t nvalid; + __int32_t nused; + __int32_t pad; +}; +---- + +*hdr*:: +v3 directory block header. The magic number is "XDF3" (0x0x58444633). + +*firstdb*:: +The starting directory block number for the bests array. + +*nvalid*:: +Number of elements in the bests array. + +*nused*:: +Number of valid elements in the bests array. + +*pad*:: +Padding to maintain alignment. + +[source, c] +---- +struct xfs_dir3_free { + xfs_dir3_free_hdr_t hdr; + __be16 bests[1]; +}; +---- + +*hdr*:: +Free block header. + +*bests*:: +An array specifying the best free counts in each directory data block. + +// split lists + * The location of the leaf blocks can be in any order, the only way to determine the appropriate is by the node block hash/before values. Given a hash to look up, you read the node's +btree+ array and first +hashval+ in the array that exceeds @@ -1205,6 +1380,45 @@ The hash value of a particular record. The directory/attribute logical block containing all entries up to the corresponding hash value. +* On a v5 filesystem, the directory/attribute node blocks have the following +structure: + +[source, c] +---- +struct xfs_da3_intnode { + struct xfs_da3_node_hdr { + struct xfs_da3_blkinfo info; + __uint16_t count; + __uint16_t level; + __uint32_t pad32; + } hdr; + struct xfs_da_node_entry { + xfs_dahash_t hashval; + xfs_dablk_t before; + } btree[1]; +}; +---- + +*info*:: +Directory/attribute block info. The magic number is +XFS_DA3_NODE_MAGIC+ +(0x3ebe). + +*count*:: +Number of node entries in this block. + +*level*:: +The level of this block in the B+tree. + +*pad32*:: +Padding to maintain alignment. + +*hashval*:: +The hash value of a particular record. + +*before*:: +The directory/attribute logical block containing all entries up to the +corresponding hash value. + * The freeindex's +bests+ array starts from the end of the block and grows to the start of the block. diff --git a/design/XFS_Filesystem_Structure/docinfo.xml b/design/XFS_Filesystem_Structure/docinfo.xml index 9bcecad..8ed38d9 100644 --- a/design/XFS_Filesystem_Structure/docinfo.xml +++ b/design/XFS_Filesystem_Structure/docinfo.xml @@ -90,4 +90,20 @@ + + 3.1 + October 2015 + + Darrick + Wong + + + + + Add v5 fields. + Discuss metadata integrity. + Document the free inode B+tree. + + + diff --git a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc index f268d66..bb773d5 100644 --- a/design/XFS_Filesystem_Structure/extended_attributes.asciidoc +++ b/design/XFS_Filesystem_Structure/extended_attributes.asciidoc @@ -322,7 +322,8 @@ with the flags stored as well. The remaining part of the leaf block contains the array name/value pairs, where each element varies in length. Each leaf is based on the +xfs_da_blkinfo_t+ block header declared in the -section about xref:Directory_Attribute_Block_Header[directories]. The structure +section about xref:Directory_Attribute_Block_Header[directories]. On a v5 +filesystem, the block header is +xfs_da3_blkinfo_t+. The structure encapsulating all other structures in the attribute block is +xfs_attr_leafblock_t+. @@ -459,7 +460,32 @@ size of these entries is determined dynamically. A variable-length array of descriptors of remote attributes. The location and size of these entries is determined dynamically. -Each leaf header uses the magic number +XFS_ATTR_LEAF_MAGIC+ (0xfbee). +On a v5 filesystem, the header becomes +xfs_da3_blkinfo_t+ to accomodate the +extra metadata integrity fields: + +[source, c] +---- +typedef struct xfs_attr3_leaf_hdr { + xfs_da3_blkinfo_t info; + __be16 count; + __be16 usedbytes; + __be16 firstused; + __u8 holes; + __u8 pad1; + xfs_attr_leaf_map_t freemap[3]; +} xfs_attr3_leaf_hdr_t; + + +typedef struct xfs_attr3_leafblock { + xfs_attr3_leaf_hdr_t hdr; + xfs_attr_leaf_entry_t entries[1]; + xfs_attr_leaf_name_local_t namelist; + xfs_attr_leaf_name_remote_t valuelist; +} xfs_attr3_leafblock_t; +---- + +Each leaf header uses the magic number +XFS_ATTR_LEAF_MAGIC+ (0xfbee). On a +v5 filesystem, the magic number is +XFS_ATTR3_LEAF_MAGIC+ (0x3bee). The hash/index elements in the +entries[]+ array are packed from the top of the block. Name/values grow from the bottom but are not packed. The freemap contains @@ -474,7 +500,8 @@ For attributes with small values (ie. the value can be stored within the leaf), the +XFS_ATTR_LOCAL+ flag is set for the attribute. The entry details are stored using the +xfs_attr_leaf_name_local_t+ structure. For large attribute values that cannot be stored within the leaf, separate filesystem blocks are allocated -to store the value. They use the +xfs_attr_leaf_name_remote_t+ structure. +to store the value. They use the +xfs_attr_leaf_name_remote_t+ structure. See +xref:Remote_Values[Remote Values] for more information. .Leaf attribute layout image::images/69.png[] @@ -629,6 +656,7 @@ that exceeds the given hash. The entry is in the block pointed to by the +before+ value. Each attribute node block has a magic number of +XFS_DA_NODE_MAGIC+ (0xfebe). +On a v5 filesystem this is +XFS_DA3_NODE_MAGIC+ (0x3ebe). .Node attribute layout image::images/72.png[] @@ -834,3 +862,50 @@ is two levels deep. The two blocks at offset 513 and 512 (ie. access using the +ablock+ command) are intermediate +xfs_da_intnode_t+ nodes that index all the attribute leaves. +[[Remote_Values]] +== Remote Attribute Values + +On a v5 filesystem, all remote value blocks start with this header: + +[source, c] +---- +struct xfs_attr3_rmt_hdr { + __be32 rm_magic; + __be32 rm_offset; + __be32 rm_bytes; + __be32 rm_crc; + uuid_t rm_uuid; + __be64 rm_owner; + __be64 rm_blkno; + __be64 rm_lsn; +}; +---- + + +*rm_magic*:: +Specifies the magic number for the remote value block: "XARM" (0x5841524d). + +*rm_offset*:: +Offset of the remote value data, in bytes. + +*rm_bytes*:: +Number of bytes used to contain the remote value data. + +*rm_crc*:: +Checksum of the remote value block. + +*rm_uuid*:: +The UUID of this block, which must match either +sb_uuid+ or +sb_meta_uuid+ +depending on which features are set. + +*rm_owner*:: +The inode number that this remote value block belongs to. + +*rm_blkno*:: +Disk block number of this remote value block. + +*rm_lsn*:: +Log sequence number of the last write to this block. + +Filesystems formatted prior to v5 do not have this header in the remote block. +Value data begins immediately at offset zero. diff --git a/design/XFS_Filesystem_Structure/internal_inodes.asciidoc b/design/XFS_Filesystem_Structure/internal_inodes.asciidoc index c21f8b4..9ace3ea 100644 --- a/design/XFS_Filesystem_Structure/internal_inodes.asciidoc +++ b/design/XFS_Filesystem_Structure/internal_inodes.asciidoc @@ -60,6 +60,11 @@ struct xfs_disk_dquot { struct xfs_dqblk { struct xfs_disk_dquot dd_diskdq; char dd_fill[32]; + + /* version 5 filesystem fields begin here */ + __be32 dd_crc; + __be64 dd_lsn; + uuid_t dd_uuid; }; ---- @@ -150,6 +155,16 @@ soft limit will turn into a hard limit after the elapsed time exceeds ID zero's +d_rtbtimer+ value. When +d_rtbcount+ goes back below +d_rtb_softlimit+, +d_rtbtimer+ is reset back to zero. +*dd_uuid*:: +The UUID of this block, which must match either +sb_uuid+ or +sb_meta_uuid+ +depending on which features are set. + +*dd_lsn*:: +Log sequence number of the last DQ block write. + +*dd_crc*:: +Checksum of the DQ block. + [[Real-time_Inodes]] == Real-time Inodes diff --git a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc index da6281b..4aabc55 100644 --- a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc +++ b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc @@ -55,7 +55,7 @@ explain the various structures in use within the inode. The remaining space in the inode after +di_next_unlinked+ where the two forks are located is called the inode's ``literal area''. This starts at offset 100 -(0x64) in the inode. +(0x64) in a version 1 or 2 inode, and offset 176 (0xb0) in a version 3 inode. The space for each of the two forks in the literal area is determined by the inode size, and +di_core.di_forkoff+. The data fork is located between the start @@ -99,6 +99,20 @@ struct xfs_dinode_core { __uint16_t di_dmstate; __uint16_t di_flags; __uint32_t di_gen; + + /* di_next_unlinked is the only non-core field in the old dinode */ + __be32 di_next_unlinked; + + /* version 5 filesystem (inode version 3) fields start here */ + __le32 di_crc; + __be64 di_changecount; + __be64 di_lsn; + __be64 di_flags2; + __u8 di_pad2[16]; + xfs_timestamp_t di_crtime; + __be64 di_ino; + uuid_t di_uuid; + }; ---- @@ -110,10 +124,11 @@ Specifies the mode access bits and type of file using the standard S_Ixxx values defined in stat.h. *di_version*:: -Specifies the inode version which currently can only be 1 or 2. The inode +Specifies the inode version which currently can only be 1, 2, or 3. The inode version specifies the usage of the +di_onlink+, +di_nlink+ and +di_projid+ values in the inode core. Initially, inodes are created as v1 but can be -converted on the fly to v2 when required. +converted on the fly to v2 when required. v3 inodes are created only for v5 +filesystems. *di_format*:: Specifies the format of the data fork in conjunction with the +di_mode+ type. @@ -284,6 +299,35 @@ A generation number used for inode identification. This is used by tools that do inode scanning such as backup tools and xfsdump. An inode's generation number can change by unlinking and creating a new file that reuses the inode. +*di_next_unlinked*:: +See the section on xref:Unlinked_Pointer[unlinked inode pointers] for more +information. + +*di_crc*:: +Checksum of the inode. + +*di_changecount*:: +Counts the number of changes made to the attributes in this inode. + +*di_lsn*:: +Log sequence number of the last inode write. + +*di_flags2*:: +Specifies extended flags associated with a v3 inode. There are no flags defined +currently. + +*di_pad2*:: +Padding for future expansion of the inode. + +*di_crtime*:: +Specifies the time when this inode was created. + +*di_ino*:: +The full inode number of this inode. + +*di_uuid*:: +The UUID of this inode, which must match either +sb_uuid+ or +sb_meta_uuid+ +depending on which features are set. [[Unlinked_Pointer]] == Unlinked Pointer @@ -311,12 +355,12 @@ image::images/28.png[] == Data Fork The structure of the inode's data fork based is on the inode's type and -+di_format+. It always starts at offset 100 (0x64) in the inode's space which is -the start of the inode's ``literal area''. The size of the data fork is determined -by the type and format. The maximum size is determined by the inode size and -+di_forkoff+. In code, use the +XFS_DFORK_PTR+ macro specifying +XFS_DATA_FORK+ -for the ``which'' parameter. Alternatively, the +XFS_DFORK_DPTR+ macro can be -used. ++di_format+. The data fork begins at the start of the inode's ``literal area''. +This area starts at offset 100 (0x64), or offset 176 (0xb0) in a v3 inode. The +size of the data fork is determined by the type and format. The maximum size is +determined by the inode size and +di_forkoff+. In code, use the +XFS_DFORK_PTR+ +macro specifying +XFS_DATA_FORK+ for the ``which'' parameter. Alternatively, +the +XFS_DFORK_DPTR+ macro can be used. Each of the following sub-sections summarises the contents of the data fork based on the inode type. diff --git a/design/XFS_Filesystem_Structure/symbolic_links.asciidoc b/design/XFS_Filesystem_Structure/symbolic_links.asciidoc index 5d2c4e8..bfe5eb9 100644 --- a/design/XFS_Filesystem_Structure/symbolic_links.asciidoc +++ b/design/XFS_Filesystem_Structure/symbolic_links.asciidoc @@ -63,6 +63,51 @@ by the data fork's +di_bmx[]+ array. In the significant majority of cases, this will be in one filesystem block as a symlink cannot be longer than 1024 characters. +On a v5 filesystem, the first block of each extent starts with the following +header structure: + +[source, c] +---- +struct xfs_dsymlink_hdr { + __be32 sl_magic; + __be32 sl_offset; + __be32 sl_bytes; + __be32 sl_crc; + uuid_t sl_uuid; + __be64 sl_owner; + __be64 sl_blkno; + __be64 sl_lsn; +}; +----- + +*sl_magic*:: +Specifies the magic number for the symlink block: "XSLM" (0x58534c4d). + +*sl_offset*:: +Offset of the symbolic link target data, in bytes. + +*sl_bytes*:: +Number of bytes used to contain the link target data. + +*sl_crc*:: +Checksum of the symlink block. + +*sl_uuid*:: +The UUID of this block, which must match either +sb_uuid+ or +sb_meta_uuid+ +depending on which features are set. + +*sl_owner*:: +The inode number that this symlink block belongs to. + +*sl_blkno*:: +Disk block number of this symlink. + +*sl_lsn*:: +Log sequence number of the last write to this block. + +Filesystems formatted prior to v5 do not have this header in the remote block. +Symlink data begins immediately at offset zero. + .Symbolic link extent layout image::images/62.png[] From darrick.wong@oracle.com Wed Nov 11 13:24:41 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7440C29E08 for ; Wed, 11 Nov 2015 13:24:41 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 67AA28F8035 for ; Wed, 11 Nov 2015 11:24:41 -0800 (PST) X-ASG-Debug-ID: 1447269879-04cbb0242212ccf0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id MJPrWARNadZLwmkT (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:24:40 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJOGfH025787 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:24:16 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJOGRU014735 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:24:16 GMT Received: from abhmp0015.oracle.com (abhmp0015.oracle.com [141.146.116.21]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJOFim018612; Wed, 11 Nov 2015 19:24:15 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:24:15 -0800 Subject: [PATCH 16/21] xfsdocs: add a chapter discussing v5 disk format From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 16/21] xfsdocs: add a chapter discussing v5 disk format To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:24:14 -0800 Message-ID: <20151111192414.14235.39676.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447269880 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Add a chapter to give an overview of the enhanced metadata integrity fields present on a v5 filesystem. Signed-off-by: Darrick J. Wong --- .../metadata_integrity.asciidoc | 36 ++++++++++++++++++++ .../xfs_filesystem_structure.asciidoc | 2 + 2 files changed, 38 insertions(+) create mode 100644 design/XFS_Filesystem_Structure/metadata_integrity.asciidoc diff --git a/design/XFS_Filesystem_Structure/metadata_integrity.asciidoc b/design/XFS_Filesystem_Structure/metadata_integrity.asciidoc new file mode 100644 index 0000000..f948d5e --- /dev/null +++ b/design/XFS_Filesystem_Structure/metadata_integrity.asciidoc @@ -0,0 +1,36 @@ += Metadata Integrity + +Prior to version 5, most XFS metadata blocks contained a magic number that +could provide a minimal sanity check that a block read off the disk contained +the same type of data that the code thought it was reading off the disk. +However, this was insufficient -- given a correct type code, it was still +impossible to tell if the block was from a previous filesystem, or happened to +be owned by something else, or had been written to the wrong location on disk. +Furthermore, not all metadata blocks had magic numbers -- remote extended +attributes and extent symbolic links had no protection at all. + +Therefore, the version 5 disk format introduced larger headers for all metadata +types, which enable the filesystem to check information being read from the +disk more rigorously. Metadata integrity fields now include: + +* *Magic* numbers, to classify all types of metadata. This is unchanged from v4. +* A copy of the filesystem *UUID*, to confirm that a given disk block is connected to the superblock. +* The *owner*, to avoid accessing a piece of metadata which belongs to some other part of the filesystem. +* The filesystem *block number*, to detect misplaced writes. +* The *log serial number* of the last write to this block, to avoid replaying obsolete log entries. +* A CRC32c *checksum* of the entire block, to detect minor corruption. + +Metadata integrity coverage has been extended to all metadata blocks in the +filesystem, with the following notes: + +* Inodes can have multiple ``owners'' in the directory tree; therefore the record contains the inode number instead of an owner or a block number. +* Superblocks have no owners. +* The disk quota file has no owner or block numbers. +* Metadata owned by files list the inode number as the owner. +* Per-AG data and B+tree blocks list the AG number as the owner. +* Per-AG header sectors don't list owners or block numbers, since they have fixed locations. +* Remote attribute blocks are not logged and therefore the LSN must be -1. + +This functionality enables XFS to decide that a block contents are so +unexpected that it should stop immediately. Unfortunately checksums do not +allow for automatic correction. Please keep regular backups, as always. diff --git a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc index 9f4c096..8aacbb7 100644 --- a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc +++ b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc @@ -46,6 +46,8 @@ log items which are formatted in host order. include::overview.asciidoc[] +include::metadata_integrity.asciidoc[] + include::common_types.asciidoc[] // return titles to normal From darrick.wong@oracle.com Wed Nov 11 13:24:51 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7D68429DFC for ; Wed, 11 Nov 2015 13:24:51 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5FE5D304032 for ; Wed, 11 Nov 2015 11:24:51 -0800 (PST) X-ASG-Debug-ID: 1447269889-04cb6c296d125080001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id 3CPGBHEr8btjz7Yt (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:24:49 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJOUI4025912 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:24:31 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABJOUNB000971 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:24:30 GMT Received: from abhmp0009.oracle.com (abhmp0009.oracle.com [141.146.116.15]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJOUW6000772; Wed, 11 Nov 2015 19:24:30 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:24:29 -0800 Subject: [PATCH 18/21] xfsdocs: document the sparse inodes feature From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 18/21] xfsdocs: document the sparse inodes feature To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:24:28 -0800 Message-ID: <20151111192428.14235.3249.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447269889 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Document the new sparse inodes feature and how it affects the inobt records. Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 157 ++++++++++++++++++++ design/XFS_Filesystem_Structure/docinfo.xml | 1 2 files changed, 155 insertions(+), 3 deletions(-) diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index 845b359..ca3210c 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -388,6 +388,18 @@ Directory file type. Each directory entry tracks the type of the inode to which the entry points. This is a performance optimization to remove the need to load every inode into memory to iterate a directory. +| +XFS_SB_FEAT_INCOMPAT_SPINODES+ | +Sparse inodes. This feature relaxes the requirement to allocate inodes in +chunks of 64. When the free space is heavily fragmented, there might exist +plenty of free space but not enough contiguous free space to allocate a new +inode chunk. With this feature, the user can continue to create files until +all free space is exhausted. + +Unused space in the inode B+tree records are used to track which parts of the +inode chunk are not inodes. + +See the chapter on xref:Sparse_Inodes[Sparse Inodes] for more information. + | +XFS_SB_FEAT_INCOMPAT_META_UUID+ | Metadata UUID. The UUID stamped into each metadata block must match the value in +sb_meta_uuid+. This enables the administrator to change +sb_uuid+ at will @@ -977,9 +989,9 @@ Specifies the number of levels in the free inode B+tree. [[Inode_Btrees]] == Inode B+trees -Inodes are allocated in chunks of 64, and a B+tree is used to track these chunks -of inodes as they are allocated and freed. The block containing root of the -B+tree is defined by the AGI's +agi_root+ value. If the +Inodes are traditionally allocated in chunks of 64, and a B+tree is used to +track these chunks of inodes as they are allocated and freed. The block +containing root of the B+tree is defined by the AGI's +agi_root+ value. If the +XFS_SB_FEAT_RO_COMPAT_FINOBT+ feature is enabled, a second B+tree is used to track the chunks containing free inodes; this is an optimization to speed up inode allocation. @@ -1111,6 +1123,145 @@ recs[1] = [startino,freecount,free] 1:[5792,9,0xff80000000000000] Observe also that the AGI's +agi_newino+ points to this chunk, which has never been fully allocated. +[[Sparse_Inodes]] +== Sparse Inodes + +As mentioned in the previous section, XFS allocates inodes in chunks of 64. If +there are no free extents large enough to hold a full chunk of 64 inodes, the +inode allocation fails and XFS claims to have run out of space. On a +filesystem with highly fragmented free space, this can lead to out of space +errors long before the filesystem runs out of free blocks. + +The sparse inode feature tracks inode chunks in the inode B+tree as if they +were full chunks but uses some previously unused bits in the freecount field to +track which parts of the inode chunk are not allocated for use as inodes. This +allows XFS to allocate inodes one block at a time if absolutely necessary. + +The inode and free inode B+trees operate in the same manner as they do without +the sparse inode feature; the B+tree header for the nodes and leaves use the ++xfs_btree_sblock+ structure which is the same as the header used in the +xref:AG_Free_Space_Btrees[AGF B+trees]. + +Leaves contain an array of the following structure: + +[source,c] +---- +struct xfs_inobt_rec { + __be32 ir_startino; + __be16 ir_holemask; + __u8 ir_count; + __u8 ir_freecount; + __be64 ir_free; +}; +---- + +*ir_startino*:: +The lowest-numbered inode in this chunk, rounded down to the nearest multiple +of 64, even if the start of this chunk is sparse. + +*ir_holemask*:: +A 16 element bitmap showing which parts of the chunk are not allocated to +inodes. Each bit represents four inodes; if a bit is marked here, the +corresponding bits in ir_free must also be marked. + +*ir_count*:: +Number of inodes allocated to this chunk. + +*ir_freecount*:: +Number of free inodes in this chunk. + +*ir_free*:: +A 64 element bitmap showing which inodes in this chunk are not available for +allocation. + +==== xfs_db Sparse Inode AGI Example + +This example derives from an AG that has been deliberately fragmented. The +inode B+tree: + +---- +xfs_db> agi 0 +xfs_db> p +magicnum = 0x58414749 +versionnum = 1 +seqno = 0 +length = 6400 +count = 10432 +root = 2381 +level = 2 +freecount = 0 +newino = 14912 +dirino = null +unlinked[0-63] = +uuid = b9b4623b-f678-4d48-8ce7-ce08950e3cd6 +lsn = 0x600000ac4 +crc = 0xef550dbc (correct) +free_root = 4 +free_level = 1 +---- + +This AGI was formatted on a v5 filesystem; notice the extra v5 fields. So far +everything else looks much the same as always. + +---- +xfs_db> addr root +magic = 0x49414233 +level = 1 +numrecs = 2 +leftsib = null +rightsib = null +bno = 19048 +lsn = 0x50000192b +uuid = b9b4623b-f678-4d48-8ce7-ce08950e3cd6 +owner = 0 +crc = 0xd98cd2ca (correct) +keys[1-2] = [startino] 1:[128] 2:[35136] +ptrs[1-2] = 1:3 2:2380 +xfs_db> addr ptrs[1] +xfs_db> p +magic = 0x49414233 +level = 0 +numrecs = 159 +leftsib = null +rightsib = 2380 +bno = 24 +lsn = 0x600000ac4 +uuid = b9b4623b-f678-4d48-8ce7-ce08950e3cd6 +owner = 0 +crc = 0x836768a6 (correct) +recs[1-159] = [startino,holemask,count,freecount,free] + 1:[128,0,64,0,0] + 2:[14912,0xff,32,0,0xffffffff] + 3:[15040,0,64,0,0] + 4:[15168,0xff00,32,0,0xffffffff00000000] + 5:[15296,0,64,0,0] + 6:[15424,0xff,32,0,0xffffffff] + 7:[15552,0,64,0,0] + 8:[15680,0xff00,32,0,0xffffffff00000000] + 9:[15808,0,64,0,0] + 10:[15936,0xff,32,0,0xffffffff] +---- + +Here we see the difference in the inode B+tree records. For example, in record +2, we see that the holemask has a value of 0xff. This means that the first +sixteen inodes in this chunk record do not actually map to inode blocks; the +first inode in this chunk is actually inode 14944: + +---- +xfs_db> inode 14912 +Metadata corruption detected at block 0x3a40/0x2000 +... +Metadata CRC error detected for ino 14912 +xfs_db> p core.magic +core.magic = 0 +xfs_db> inode 14944 +xfs_db> p core.magic +core.magic = 0x494e +---- + +The chunk record also indicates that this chunk has 32 inodes, and that the +missing inodes are also ``free''. + [[Real-time_Devices]] == Real-time Devices diff --git a/design/XFS_Filesystem_Structure/docinfo.xml b/design/XFS_Filesystem_Structure/docinfo.xml index 6189fd6..ba97809 100644 --- a/design/XFS_Filesystem_Structure/docinfo.xml +++ b/design/XFS_Filesystem_Structure/docinfo.xml @@ -104,6 +104,7 @@ Discuss metadata integrity. Document the free inode B+tree. Create an index of magic numbers. + Document sparse inodes. From darrick.wong@oracle.com Wed Nov 11 13:24:52 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BB95029DFC for ; Wed, 11 Nov 2015 13:24:52 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5D2CFAC005 for ; Wed, 11 Nov 2015 11:24:52 -0800 (PST) X-ASG-Debug-ID: 1447269890-04bdf03f05121330001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id 3i423aJmiE81xAcB (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:24:51 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJORTX025878 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:24:27 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJOQMe015312 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:24:27 GMT Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJONY5000740; Wed, 11 Nov 2015 19:24:23 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:24:23 -0800 Subject: [PATCH 17/21] xfsdocs: document magic numbers and theoretical limits From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 17/21] xfsdocs: document magic numbers and theoretical limits To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:24:20 -0800 Message-ID: <20151111192420.14235.39194.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447269891 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Signed-off-by: Darrick J. Wong --- design/XFS_Filesystem_Structure/docinfo.xml | 1 design/XFS_Filesystem_Structure/magic.asciidoc | 86 ++++++++++++++++++++ .../xfs_filesystem_structure.asciidoc | 2 3 files changed, 89 insertions(+) create mode 100644 design/XFS_Filesystem_Structure/magic.asciidoc diff --git a/design/XFS_Filesystem_Structure/docinfo.xml b/design/XFS_Filesystem_Structure/docinfo.xml index 8ed38d9..6189fd6 100644 --- a/design/XFS_Filesystem_Structure/docinfo.xml +++ b/design/XFS_Filesystem_Structure/docinfo.xml @@ -103,6 +103,7 @@ Add v5 fields. Discuss metadata integrity. Document the free inode B+tree. + Create an index of magic numbers. diff --git a/design/XFS_Filesystem_Structure/magic.asciidoc b/design/XFS_Filesystem_Structure/magic.asciidoc new file mode 100644 index 0000000..301cfa0 --- /dev/null +++ b/design/XFS_Filesystem_Structure/magic.asciidoc @@ -0,0 +1,86 @@ += Magic Numbers + +These are the magic numbers that are known to XFS, along with links to the +relevant chapters. Magic numbers tend to have consistent locations: + +* 32-bit magic numbers are always at offset zero in the block. +* 16-bit magic numbers for the directory and attribute B+tree are at offset eight. +* The quota magic number is at offset zero. +* The inode magic is at the beginning of each inode. + +[options="header"] +|===== +| Flag | Hexadecimal | ASCII | Data structure +| +XFS_SB_MAGIC+ | 0x58465342 | XFSB | xref:Superblocks[Superblock] +| +XFS_AGF_MAGIC+ | 0x58414746 | XAGF | xref:AG_Free_Space_Block[Free Space] +| +XFS_AGI_MAGIC+ | 0x58414749 | XAGI | xref:Inode_Information[Inode Information] +| +XFS_AGFL_MAGIC+ | 0x5841464c | XAFL | xref:AG_Free_List[Free Space List], v5 only +| +XFS_DINODE_MAGIC+ | 0x494e | IN | xref:Inode_Core[Inodes] +| +XFS_DQUOT_MAGIC+ | 0x4451 | DQ | xref:Quota_Inodes[Quota Inodes] +| +XFS_SYMLINK_MAGIC+ | 0x58534c4d | XSLM | xref:Extent_Symbolic_Links[Symbolic Links] +| +XFS_ABTB_MAGIC+ | 0x41425442 | ABTB | xref:AG_Free_Space_Btrees[Free Space by Block B+tree] +| +XFS_ABTB_CRC_MAGIC+ | 0x41423342 | AB3B | xref:AG_Free_Space_Btrees[Free Space by Block B+tree], v5 only +| +XFS_ABTC_MAGIC+ | 0x41425443 | ABTC | xref:AG_Free_Space_Btrees[Free Space by Size B+tree] +| +XFS_ABTC_CRC_MAGIC+ | 0x41423343 | AB3C | xref:AG_Free_Space_Btrees[Free Space by Size B+tree], v5 only +| +XFS_IBT_MAGIC+ | 0x49414254 | IABT | xref:Inode_Btrees[Inode B+tree] +| +XFS_IBT_CRC_MAGIC+ | 0x49414233 | IAB3 | xref:Inode_Btrees[Inode B+tree], v5 only +| +XFS_FIBT_MAGIC+ | 0x46494254 | FIBT | xref:Inode_Btrees[Free Inode B+tree] +| +XFS_FIBT_CRC_MAGIC+ | 0x46494233 | FIB3 | xref:Inode_Btrees[Free Inode B+tree], v5 only +| +XFS_BMAP_MAGIC+ | 0x424d4150 | BMAP | xref:Btree_Extent_List[B+Tree Extent List] +| +XFS_BMAP_CRC_MAGIC+ | 0x424d4133 | BMA3 | xref:Btree_Extent_List[B+Tree Extent List], v5 only +| +XLOG_HEADER_MAGIC_NUM+ | 0xfeedbabe | | xref:Log_Records[Log Records] +| +XFS_DA_NODE_MAGIC+ | 0xfebe | | xref:Directory_Attribute_Internal_Node[Directory/Attribute Node] +| +XFS_DA3_NODE_MAGIC+ | 0x3ebe | | xref:Directory_Attribute_Internal_Node[Directory/Attribute Node], v5 only +| +XFS_DIR2_BLOCK_MAGIC+ | 0x58443242 | XD2B | xref:Block_Directories[Block Directory Data] +| +XFS_DIR3_BLOCK_MAGIC+ | 0x58444233 | XDB3 | xref:Block_Directories[Block Directory Data], v5 only +| +XFS_DIR2_DATA_MAGIC+ | 0x58443244 | XD2D | xref:Leaf_Directories[Leaf Directory Data] +| +XFS_DIR3_DATA_MAGIC+ | 0x58444433 | XDD3 | xref:Leaf_Directories[Leaf Directory Data], v5 only +| +XFS_DIR2_LEAF1_MAGIC+ | 0xd2f1 | | xref:Leaf_Directories[Leaf Directory] +| +XFS_DIR3_LEAF1_MAGIC+ | 0x3df1 | | xref:Leaf_Directories[Leaf Directory], v5 only +| +XFS_DIR2_LEAFN_MAGIC+ | 0xd2ff | | xref:Node_Directories[Node Directory] +| +XFS_DIR3_LEAFN_MAGIC+ | 0x3dff | | xref:Node_Directories[Node Directory], v5 only +| +XFS_DIR2_FREE_MAGIC+ | 0x58443246 | XD2F | xref:Node_Directories[Node Directory Free Space] +| +XFS_DIR3_FREE_MAGIC+ | 0x58444633 | XDF3 | xref:Node_Directories[Node Directory Free Space], v5 only +| +XFS_ATTR_LEAF_MAGIC+ | 0xfbee | | xref:Leaf_Attributes[Leaf Attribute] +| +XFS_ATTR3_LEAF_MAGIC+ | 0x3bee | | xref:Leaf_Attributes[Leaf Attribute], v5 only +| +XFS_ATTR3_RMT_MAGIC+ | 0x5841524d | XARM | xref:Remote_Values[Remote Attribute Value], v5 only +|===== + +The magic numbers for log items are at offset zero in each log item, but items +are not aligned to blocks. + +[options="header"] +|===== +| Flag | Hexadecimal | ASCII | Data structure +| +XFS_TRANS_HEADER_MAGIC+ | 0x5452414e | TRAN | xref:Log_Transaction_Headers[Log Transactions] +| +XFS_LI_EFI+ | 0x1236 | | xref:EFI_Log_Item[Extent Freeing Intent Log Item] +| +XFS_LI_EFD+ | 0x1237 | | xref:EFD_Log_Item[Extent Freeing Done Log Item] +| +XFS_LI_IUNLINK+ | 0x1238 | | Unknown? +| +XFS_LI_INODE+ | 0x123b | | xref:Inode_Log_Item[Inode Updates Log Item] +| +XFS_LI_BUF+ | 0x123c | | xref:Buffer_Log_Item[Buffer Writes Log Item] +| +XFS_LI_DQUOT+ | 0x123d | | xref:Quota_Update_Log_Item[Update Quota Log Item] +| +XFS_LI_QUOTAOFF+ | 0x123e | | xref:Quota_Off_Log_Item[Quota Off Log Item] +| +XFS_LI_ICREATE+ | 0x123f | | xref:Inode_Create_Log_Item[Inode Creation Log Item] +|===== + += Theoretical Limits + +XFS can create really big filesystems! + +[options="header"] +|===== +| Item | 1KiB blocks | 4KiB blocks | 64KiB blocks +| Blocks | 2^52^ | 2^52^ | 2^52^ +| Inodes | 2^63^ | 2^63^ | 2^64^ +| Allocation Groups | 2^32^ | 2^32^ | 2^32^ +| File System Size | 8EiB | 8EiB | 8EiB +| Blocks per AG | 2^31^ | 2^31^ | 2^31^ +| Inodes per AG | 2^32^ | 2^32^ | 2^32^ +| Max AG Size | 2TiB | 8TiB | 128TiB +| Blocks Per File | 2^54^ | 2^54^ | 2^54^ +| File Size | 8EiB | 8EiB | 8EiB +| Max Dir Size | 32GiB | 32GiB | 32GiB +|===== + +Linux doesn't suppport files or devices larger than 8EiB, so the block +limitations are largely ignorable. diff --git a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc index 8aacbb7..0ab4906 100644 --- a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc +++ b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc @@ -50,6 +50,8 @@ include::metadata_integrity.asciidoc[] include::common_types.asciidoc[] +include::magic.asciidoc[] + // return titles to normal :leveloffset: 0 From darrick.wong@oracle.com Wed Nov 11 13:25:05 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 756CB29DFC for ; Wed, 11 Nov 2015 13:25:05 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2C943304032 for ; Wed, 11 Nov 2015 11:25:05 -0800 (PST) X-ASG-Debug-ID: 1447269902-04bdf03f03121340001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id mgYBd1pJRqmFmgyJ (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:25:02 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJObIQ027098 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:24:37 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJOawu015782 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:24:37 GMT Received: from abhmp0009.oracle.com (abhmp0009.oracle.com [141.146.116.15]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABJOaM9014752; Wed, 11 Nov 2015 19:24:36 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:24:36 -0800 Subject: [PATCH 19/21] xfsdocs: reverse-mapping btree documentation From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 19/21] xfsdocs: reverse-mapping btree documentation To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:24:35 -0800 Message-ID: <20151111192435.14235.18890.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447269902 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_SA210e, UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines 0.00 BSF_SC5_SA210e Custom Rule SA210e Add chapters on the operation of the reverse mapping btree and future things we could do with rmap data. Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 24 +- design/XFS_Filesystem_Structure/docinfo.xml | 14 + .../reconstruction.asciidoc | 53 +++++ design/XFS_Filesystem_Structure/rmapbt.asciidoc | 223 ++++++++++++++++++++ .../xfs_filesystem_structure.asciidoc | 4 5 files changed, 310 insertions(+), 8 deletions(-) create mode 100644 design/XFS_Filesystem_Structure/reconstruction.asciidoc create mode 100644 design/XFS_Filesystem_Structure/rmapbt.asciidoc diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index ca3210c..a385a94 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -12,6 +12,7 @@ Each AG has the following characteristics: * A super block describing overall filesystem info * Free space management * Inode allocation and tracking + * Reverse block-mapping index (optional) Having multiple AGs allows XFS to handle most operations in parallel without degrading performance as the number of concurrent accesses increases. @@ -373,6 +374,12 @@ it doesn't understand the flag. Free inode B+tree. Each allocation group contains a B+tree to track inode chunks containing free inodes. This is a performance optimization to reduce the time required to allocate inodes. + +| +XFS_SB_FEAT_RO_COMPAT_RMAPBT+ | +Reverse mapping B+tree. Each allocation group contains a B+tree containing +records mapping AG blocks to their owners. See the section about +xref:Reconstruction[reconstruction] for more details. + |===== *sb_features_incompat*:: @@ -522,9 +529,7 @@ struct xfs_agf { __be32 agf_seqno; __be32 agf_length; __be32 agf_roots[XFS_BTNUM_AGF]; - __be32 agf_spare0; __be32 agf_levels[XFS_BTNUM_AGF]; - __be32 agf_spare1; __be32 agf_flfirst; __be32 agf_fllast; __be32 agf_flcount; @@ -543,9 +548,10 @@ struct xfs_agf { }; ---- -The rest of the bytes in the sector are zeroed. +XFS_BTNUM_AGF+ is set to 2: -index 0 for the free space B+tree indexed by block number; and index 1 for the -free space B+tree indexed by extent size. +The rest of the bytes in the sector are zeroed. +XFS_BTNUM_AGF+ is set to 3: +index 0 for the free space B+tree indexed by block number; index 1 for the free +space B+tree indexed by extent size; and index 2 for the reverse-mapping +B+tree. *agf_magicnum*:: Specifies the magic number for the AGF sector: ``XAGF'' (0x58414746). @@ -563,11 +569,13 @@ this could be less than the +sb_agblocks+ value. It is this value that should be used to determine the size of the AG. *agf_roots*:: -Specifies the block number for the root of the two free space B+trees. +Specifies the block number for the root of the two free space B+trees and the +reverse-mapping B+tree, if enabled. *agf_levels*:: -Specifies the level or depth of the two free space B+trees. For a fresh AG, this -will be one, and the ``roots'' will point to a single leaf of level 0. +Specifies the level or depth of the two free space B+trees and the +reverse-mapping B+tree, if enabled. For a fresh AG, this value will be one, +and the ``roots'' will point to a single leaf of level 0. *agf_flfirst*:: Specifies the index of the first ``free list'' block. Free lists are covered in diff --git a/design/XFS_Filesystem_Structure/docinfo.xml b/design/XFS_Filesystem_Structure/docinfo.xml index ba97809..19eb135 100644 --- a/design/XFS_Filesystem_Structure/docinfo.xml +++ b/design/XFS_Filesystem_Structure/docinfo.xml @@ -108,4 +108,18 @@ + + 3.14 + November 2015 + + Darrick + Wong + + + + + Document the reverse-mapping btree. + + + diff --git a/design/XFS_Filesystem_Structure/reconstruction.asciidoc b/design/XFS_Filesystem_Structure/reconstruction.asciidoc new file mode 100644 index 0000000..7eafe6c --- /dev/null +++ b/design/XFS_Filesystem_Structure/reconstruction.asciidoc @@ -0,0 +1,53 @@ +[[Reconstruction]] += Metadata Reconstruction + +[NOTE] +This is a theoretical discussion of how reconstruction could work; none of this +is implemented as of 2015. + +A simple UNIX filesystem can be thought of in terms of a directed acyclic graph. +To a first approximation, there exists a root directory node, which points to +other nodes. Those other nodes can themselves be directories or they can be +files. Each file, in turn, points to data blocks. + +XFS adds a few more details to this picture: + +* The real root(s) of an XFS filesystem are the allocation group headers +(superblock, AGF, AGI, AGFL). +* Each allocation group’s headers point to various per-AG btrees (free space, +inode, free inodes, free list, etc.) +* The free space btrees point to unused extents; +* The inode btrees point to blocks containing inode chunks; +* All superblocks point to the root directory and the log; +* Hardlinks mean that multiple directories can point to a single file node; +* File data block pointers are indexed by file offset; +* Files and directories can have a second collection of pointers to data blocks +which contain extended attributes; +* Large directories require multiple data blocks to store all the subpointers; +* Still larger directories use high-offset data blocks to store a btree of +hashes to directory entries; +* Large extended attribute forks similarly use high-offset data blocks to store +a btree of hashes to attribute keys; and +* Symbolic links can point to data blocks. + +The beauty of this massive graph structure is that under normal circumstances, +everything known to the filesystem is discoverable (access controls +notwithstanding) from the root. The major weakness of this structure of course +is that breaking a edge in the graph can render entire subtrees inaccessible. ++xfs_repair+ “recovers†from broken directories by scanning for unlinked inodes +and connecting them to +/lost+found+, but this isn’t sufficiently general to +recover from breaks in other parts of the graph structure. Wouldn’t it be +useful to have back pointers as a secondary data structure? The current repair +strategy is to reconstruct whatever can be rebuilt, but to scrap anything that +doesn't check out. + +The xref:Reverse_Mapping_Btree[reverse-mapping B+tree] fills in part of the +puzzle. Since it contains copies of every entry in each inode’s data and +attribute forks, we can fix a corrupted block map with these records. +Furthermore, if the inode B+trees become corrupt, it is possible to visit all +inode chunks using the reverse-mapping data. Should XFS ever gain the ability +to store parent directory information in each inode, it also becomes possible +to resurrect damaged directory trees, which should reduce the complaints about +inodes ending up in +/lost+found+. Everything else in the per-AG primary +metadata can already be reconstructed via +xfs_repair+. Hopefully, +reconstruction will not turn out to be a fool's errand. diff --git a/design/XFS_Filesystem_Structure/rmapbt.asciidoc b/design/XFS_Filesystem_Structure/rmapbt.asciidoc new file mode 100644 index 0000000..d9ccd27 --- /dev/null +++ b/design/XFS_Filesystem_Structure/rmapbt.asciidoc @@ -0,0 +1,223 @@ +[[Reverse_Mapping_Btree]] +== Reverse-Mapping B+tree + +[NOTE] +This data structure is under construction! Details may change. + +If the feature is enabled, each allocation group has its own reverse +block-mapping B+tree, which grows in the free space like the free space +B+trees. As mentioned in the chapter about +xref:Reconstruction[reconstruction], this data structure is another piece of +the puzzle necessary to reconstruct the data or attribute fork of a file from +reverse-mapping records; we can also use it to double-check allocations to +ensure that we are not accidentally cross-linking blocks, which can cause +severe damage to the filesystem. + +This B+tree is only present if the +XFS_SB_FEAT_RO_COMPAT_RMAPBT+ +feature is enabled. The feature requires a version 5 filesystem. + +Each record in the reverse-mapping B+tree has the following structure: + +[source, c] +---- +struct xfs_rmap_rec { + __be32 rm_startblock; + __be32 rm_unwritten:1; + __be32 rm_blockcount:31; + __be64 rm_owner; + __be64 rm_fork:1; + __be64 rm_bmbt:1; + __be64 rm_offset:62; +}; +---- + +*rm_startblock*:: +AG block number of this record. + +*rm_unwritten*:: +A flag indicating that the extent is unwritten. This corresponds to the flag in +the xref:Data_Extents[extent record] format which means +XFS_EXT_UNWRITTEN+. + +*rm_blockcount*:: +The length of this extent. + +*rm_owner*:: +A 64-bit number describing the owner of this extent. This is typically the +absolute inode number, but can also correspond to one of the following: + +.Special owner values +[options="header"] +|===== +| Value | Description +| +XFS_RMAP_OWN_NULL+ | No owner. This should never appear on disk. +| +XFS_RMAP_OWN_UNKNOWN+ | Unknown owner; for EFI recovery. This should never appear on disk. +| +XFS_RMAP_OWN_FS+ | Allocation group headers +| +XFS_RMAP_OWN_LOG+ | XFS log blocks +| +XFS_RMAP_OWN_AG+ | Per-allocation group B+tree blocks. This means free space B+tree blocks, blocks on the freelist, and reverse-mapping B+tree blocks. +| +XFS_RMAP_OWN_INOBT+ | Per-allocation group inode B+tree blocks. This includes free inode B+tree blocks. +| +XFS_RMAP_OWN_INODES+ | Inode chunks +| +XFS_RMAP_OWN_REFC+ | Per-allocation group refcount B+tree blocks. This will be used for reflink support. +|===== + +*rm_fork*:: +If +rm_owner+ describes an inode, this can be 1 if this record is for an +attribute fork. + +*rm_bmbt*:: +If +rm_owner+ describes an inode, this can be 1 to signify that this record is +for a block map B+tree block. In this case, +rm_offset+ has no meaning. + +*rm_offset*:: +The 62-bit logical file block offset, if +rm_owner+ describes an inode. +Meaningless otherwise. + +[NOTE] +The single-bit flag values +rm_unwritten+, +rm_fork+, and +rm_bmbt+ are packed +into the larger fields in the C structure definition. + +[NOTE] +For the moment, there is a requirement that all records in the data or +attribute forks must match exactly with the corresponding entry in the +reverse-mapping B+tree. This may be lifted in future versions of the patchset. + +For the reverse-mapping B+tree, the key definition is larger than the usual AG +block number. On a classic XFS filesystem, each block has only one owner, which +means that +rm_startblock+ is sufficient to uniquely identify each record. +However, shared block support (refink) on XFS breaks that assumption; now +filesystem blocks can be linked to any logical block offset of any file inode. +Therefore, the key must include the owner and offset information to preserve the +1 to 1 relation between key and record. The key has the following structure: + +[source, c] +---- +struct xfs_rmap_key { + __be32 rm_startblock; + __be64 rm_owner; + __be64 rm_fork:1; + __be64 rm_bmbt:1; + __be64 rm_offset:62; +}; +---- + +* As the reference counting is AG relative, all the block numbers are only +32-bits. +* The +bb_magic+ value is "RMB3" (0x524d4233). +* The +xfs_btree_sblock_t+ header is used for intermediate B+tree node as well +as the leaves. + +=== xfs_db rmapbt Example + +This example shows a reverse-mapping B+tree from a freshly formatted root +filesystem: + +---- +xfs_db> agi 0 +xfs_db> addr rmaproot +xfs_db> p +magic = 0x524d4233 +level = 1 +numrecs = 43 +leftsib = null +rightsib = null +bno = 56 +lsn = 0x3000004c8 +uuid = 1977221d-8345-464e-b1f4-aa2ea36895f4 +owner = 0 +crc = 0x7cf8be6f (correct) +keys[1-43] = [startblock,owner,offset] + 1:[0,-3,0] 2:[417,285,0] 3:[829,499,0] 4:[1292,710,0] 5:[32215,-5,0] + 6:[34083,1161,0] 7:[34896,256191,0] + ... + 41:[50998,326734,0] 42:[51431,327010,0] 43:[51611,327112,0] +ptrs[1-43] = 1:5 2:6 3:8 4:9 5:10 6:11 7:418 ... 41:46377 42:48784 43:49522 +xfs_db> addr ptrs[17] +xfs_db> p +magic = 0x524d4233 +level = 0 +numrecs = 168 +leftsib = 36284 +rightsib = 37617 +bno = 294760 +lsn = 0x200002761 +uuid = 1977221d-8345-464e-b1f4-aa2ea36895f4 +owner = 0 +crc = 0x2dad3fbe (correct) +recs[1-168] = [startblock,blockcount,owner,offset,extentflag,attrfork,bmbtblock] + 1:[40326,1,259615,0,0,0,0] 2:[40327,1,-5,0,0,0,0] + 3:[40328,2,259618,0,0,0,0] 4:[40330,1,259619,0,0,0,0] + ... + 127:[40540,1,324266,0,0,0,0] 128:[40541,1,324266,8388608,0,0,0] + 129:[40542,2,324266,1,0,0,0] 130:[40544,32,-7,0,0,0,0] +---- + +Several interesting things pop out here. The first record shows that inode +259,615 has mapped AG block 40,326 at offset 0. We confirm this by looking at +the block map for that inode: + +---- +xfs_db> inode 259615 +xfs_db> bmap +data offset 0 startblock 40326 (0/40326) count 1 flag 0 +---- + +Next, notice records 127 and 128, which describe neighboring AG blocks that are +mapped to non-contiguous logical blocks in inode 324,266. Given the logical +offset of 8,388,608 we surmise that this is a leaf directory, but let us +confirm: + +---- +xfs_db> inode 324266 +xfs_db> p core.mode +core.mode = 040755 +xfs_db> bmap +data offset 0 startblock 40540 (0/40540) count 1 flag 0 +data offset 1 startblock 40542 (0/40542) count 2 flag 0 +data offset 3 startblock 40576 (0/40576) count 1 flag 0 +data offset 8388608 startblock 40541 (0/40541) count 1 flag 0 +xfs_db> p core.mode +core.mode = 0100644 +xfs_db> dblock 0 +xfs_db> p dhdr.hdr.magic +dhdr.hdr.magic = 0x58444433 +xfs_db> dblock 8388608 +xfs_db> p lhdr.info.hdr.magic +lhdr.info.hdr.magic = 0x3df1 +---- + +Indeed, this inode 324,266 appears to be a leaf directory, as it has regular +directory data blocks at low offsets, and a single leaf block. + +Notice further the two reverse-mapping records with negative owners. An owner +of -7 corresponds to +XFS_RMAP_OWN_INODES+, which is an inode chunk, and an +owner code of -5 corresponds to +XFS_RMAP_OWN_AG+, which covers free space +B+trees and free space. Let's see if block 40,544 is part of an inode chunk: + +---- +xfs_db> blockget +xfs_db> fsblock 40544 +xfs_db> blockuse +block 40544 (0/40544) type inode +xfs_db> stack +1: + byte offset 166068224, length 4096 + buffer block 324352 (fsbno 40544), 8 bbs + inode 324266, dir inode 324266, type data +xfs_db> type inode +xfs_db> p +core.magic = 0x494e +---- + +Our suspicions are confirmed. Let's also see if 40,327 is part of a free space +tree: + +---- +xfs_db> fsblock 40327 +xfs_db> blockuse +block 40327 (0/40327) type btrmap +xfs_db> type rmapbt +xfs_db> p +magic = 0x524d4233 +---- + +As you can see, the reverse block-mapping B+tree is an important secondary +metadata structure, which can be used to reconstruct damaged primary metadata. diff --git a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc index 0ab4906..4d089b6 100644 --- a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc +++ b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc @@ -48,6 +48,8 @@ include::overview.asciidoc[] include::metadata_integrity.asciidoc[] +include::reconstruction.asciidoc[] + include::common_types.asciidoc[] include::magic.asciidoc[] @@ -62,6 +64,8 @@ Global Structures include::allocation_groups.asciidoc[] +include::rmapbt.asciidoc[] + include::journaling_log.asciidoc[] include::internal_inodes.asciidoc[] From darrick.wong@oracle.com Wed Nov 11 13:25:10 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 67FE729E1A for ; Wed, 11 Nov 2015 13:25:10 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id E2147AC004 for ; Wed, 11 Nov 2015 11:25:09 -0800 (PST) X-ASG-Debug-ID: 1447269907-04cbb0242412cd40001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id CyMUx7vfG69TFkBH (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:25:07 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJOhqn027195 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:24:43 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJOh7j021874 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:24:43 GMT Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABJOhsx014774; Wed, 11 Nov 2015 19:24:43 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:24:42 -0800 Subject: [PATCH 20/21] xfsdocs: document refcount btree and reflink From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 20/21] xfsdocs: document refcount btree and reflink To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:24:41 -0800 Message-ID: <20151111192441.14235.71964.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447269907 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Document the reference count btree and talk a little bit about how the reflink feature uses it. Signed-off-by: Darrick J. Wong --- .../allocation_groups.asciidoc | 20 ++- .../XFS_Filesystem_Structure/directories.asciidoc | 1 design/XFS_Filesystem_Structure/docinfo.xml | 2 .../XFS_Filesystem_Structure/ondisk_inode.asciidoc | 10 + .../XFS_Filesystem_Structure/refcountbt.asciidoc | 145 ++++++++++++++++++++ design/XFS_Filesystem_Structure/reflink.asciidoc | 40 ++++++ .../xfs_filesystem_structure.asciidoc | 4 + 7 files changed, 218 insertions(+), 4 deletions(-) create mode 100644 design/XFS_Filesystem_Structure/refcountbt.asciidoc create mode 100644 design/XFS_Filesystem_Structure/reflink.asciidoc diff --git a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc index a385a94..5de9548 100644 --- a/design/XFS_Filesystem_Structure/allocation_groups.asciidoc +++ b/design/XFS_Filesystem_Structure/allocation_groups.asciidoc @@ -13,6 +13,7 @@ Each AG has the following characteristics: * Free space management * Inode allocation and tracking * Reverse block-mapping index (optional) + * Data block reference count index (optional) Having multiple AGs allows XFS to handle most operations in parallel without degrading performance as the number of concurrent accesses increases. @@ -380,6 +381,12 @@ Reverse mapping B+tree. Each allocation group contains a B+tree containing records mapping AG blocks to their owners. See the section about xref:Reconstruction[reconstruction] for more details. +| +XFS_SB_FEAT_RO_COMPAT_REFLINK+ | +Reference count B+tree. Each allocation group contains a B+tree to track the +reference counts of AG blocks. This enables files to share data blocks safely. +See the section about xref:Reflink_Deduplication[reflink and deduplication] for +more details. + |===== *sb_features_incompat*:: @@ -539,7 +546,9 @@ struct xfs_agf { /* version 5 filesystem fields start here */ uuid_t agf_uuid; - __be64 agf_spare64[16]; + __be32 agf_refcount_root; + __be32 agf_refcount_level; + __be64 agf_spare64[15]; /* unlogged fields, written during buffer writeback. */ __be64 agf_lsn; @@ -601,6 +610,12 @@ used if the +XFS_SB_VERSION2_LAZYSBCOUNTBIT+ bit is set in +sb_features2+. The UUID of this block, which must match either +sb_uuid+ or +sb_meta_uuid+ depending on which features are set. +*agf_refcount_root*:: +Block number for the root of the reference count B+tree, if enabled. + +*agf_refcount_root*:: +Depth of the reference count B+tree, if enabled. + *agf_spare64*:: Empty space in the logged part of the AGF sector, for use for future features. @@ -1287,4 +1302,5 @@ By placing the real time device (and the journal) on separate high-performance storage devices, it is possible to reduce most of the unpredictability in I/O response times that come from metadata operations. -None of the XFS per-AG B+trees are involved with real time files. +None of the XFS per-AG B+trees are involved with real time files. It is not +possible for real time files to share data blocks. diff --git a/design/XFS_Filesystem_Structure/directories.asciidoc b/design/XFS_Filesystem_Structure/directories.asciidoc index bccf912..1758c4e 100644 --- a/design/XFS_Filesystem_Structure/directories.asciidoc +++ b/design/XFS_Filesystem_Structure/directories.asciidoc @@ -1419,6 +1419,7 @@ The hash value of a particular record. The directory/attribute logical block containing all entries up to the corresponding hash value. +// * The freeindex's +bests+ array starts from the end of the block and grows to the start of the block. diff --git a/design/XFS_Filesystem_Structure/docinfo.xml b/design/XFS_Filesystem_Structure/docinfo.xml index 19eb135..fed339d 100644 --- a/design/XFS_Filesystem_Structure/docinfo.xml +++ b/design/XFS_Filesystem_Structure/docinfo.xml @@ -119,6 +119,8 @@ Document the reverse-mapping btree. + Document the reference-count btree. + Discuss block sharing, reflink, & deduplication. diff --git a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc index 4aabc55..ed15285 100644 --- a/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc +++ b/design/XFS_Filesystem_Structure/ondisk_inode.asciidoc @@ -313,8 +313,14 @@ Counts the number of changes made to the attributes in this inode. Log sequence number of the last inode write. *di_flags2*:: -Specifies extended flags associated with a v3 inode. There are no flags defined -currently. +Specifies extended flags associated with a v3 inode. + +.Version 3 Inode flags +[options="header"] +|===== +| Flag | Description +| +XFS_DIFLAG2_REFLINK+ | This inode shares (or has shared) data blocks with another inode. +|===== *di_pad2*:: Padding for future expansion of the inode. diff --git a/design/XFS_Filesystem_Structure/refcountbt.asciidoc b/design/XFS_Filesystem_Structure/refcountbt.asciidoc new file mode 100644 index 0000000..dbbb98e --- /dev/null +++ b/design/XFS_Filesystem_Structure/refcountbt.asciidoc @@ -0,0 +1,145 @@ +[[Reference_Count_Btree]] +== Reference Count B+tree + +[NOTE] +This data structure is under construction! Details may change. + +To support the sharing of file data blocks (reflink), each allocation group has +its own reference count B+tree, which grows in the allocated space like the +inode B+trees. This data could be gleaned by performing an interval query of +the reverse-mapping B+tree, but doing so would come at a huge performance +penalty. Therefore, this data structure is a cache of computable information. + +This B+tree is only present if the +XFS_SB_FEAT_RO_COMPAT_REFLINK+ +feature is enabled. The feature requires a version 5 filesystem. + +Each record in the reference count B+tree has the following structure: + +[source, c] +---- +struct xfs_refcount_rec { + __be32 rc_startblock; + __be32 rc_blockcount; + __be32 rc_refcount; +}; +---- + +*rc_startblock*:: +AG block number of this record. + +*rc_blockcount*:: +The length of this extent. + +*rc_refcount*:: +Number of mappings of this filesystem extent. + +Node pointers are an AG relative block pointer: + +[source, c] +---- +struct xfs_refcount_key { + __be32 rc_startblock; +}; +---- + +* As the reference counting is AG relative, all the block numbers are only +32-bits. +* The +bb_magic+ value is "R3FC" (0x52334643). +* The +xfs_btree_sblock_t+ header is used for intermediate B+tree node as well +as the leaves. + +=== xfs_db refcntbt Example + +For this example, an XFS filesystem was populated with a root filesystem and +a deduplication program was run to create shared blocks: + +---- +xfs_db> agf 0 +xfs_db> addr refcntroot +xfs_db> p +magic = 0x52334643 +level = 1 +numrecs = 6 +leftsib = null +rightsib = null +bno = 36892 +lsn = 0x200004ec2 +uuid = f1f89746-e00b-49c9-96b3-ecef0f2f14ae +owner = 0 +crc = 0x75f35128 (correct) +keys[1-6] = [startblock] 1:[14] 2:[65633] 3:[65780] 4:[94571] 5:[117201] 6:[152442] +ptrs[1-6] = 1:7 2:25836 3:25835 4:18447 5:18445 6:18449 +xfs_db> addr ptrs[3] +xfs_db> p +magic = 0x52334643 +level = 0 +numrecs = 80 +leftsib = 25836 +rightsib = 18447 +bno = 51670 +lsn = 0x200004ec2 +uuid = f1f89746-e00b-49c9-96b3-ecef0f2f14ae +owner = 0 +crc = 0xc3962813 (correct) +recs[1-80] = [startblock,blockcount,refcount] + 1:[65780,1,2] 2:[65781,1,3] 3:[65785,2,2] 4:[66640,1,2] + 5:[69602,4,2] 6:[72256,16,2] 7:[72871,4,2] 8:[72879,20,2] + 9:[73395,4,2] 10:[75063,4,2] 11:[79093,4,2] 12:[86344,16,2] +---- + +Record 6 in the reference count B+tree for AG 0 indicates that the AG extent +starting at block 72,256 and running for 16 blocks has a reference count of 2. +This means that there are two files sharing the block: + +---- +xfs_db> blockget -n +xfs_db> fsblock 72256 +xfs_db> blockuse +block 72256 (0/72256) type rldata inode 25169197 +---- + +The blockuse type changes to ``rldata'' to indicate that the block is shared +data. Unfortunately, blockuse only tells us about one block owner. If we +happen to have enabled the reverse-mapping B+tree, we can use it to find all +inodes that own this block: + +---- +xfs_db> agf 0 +xfs_db> addr rmaproot +... +xfs_db> addr ptrs[3] +... +xfs_db> addr ptrs[7] +xfs_db> p +magic = 0x524d4233 +level = 0 +numrecs = 22 +leftsib = 65057 +rightsib = 65058 +bno = 291478 +lsn = 0x200004ec2 +uuid = f1f89746-e00b-49c9-96b3-ecef0f2f14ae +owner = 0 +crc = 0xed7da3f7 (correct) +recs[1-22] = [startblock,blockcount,owner,offset,extentflag,attrfork,bmbtblock] + 1:[68957,8,3201,0,0,0,0] 2:[68965,4,25260953,0,0,0,0] + ... + 18:[72232,58,3227,0,0,0,0] 19:[72256,16,25169197,24,0,0,0] + 20:[72290,75,3228,0,0,0,0] 21:[72365,46,3229,0,0,0,0] +---- + +Records 18 and 19 intersect the block 72,256; they tell us that inodes 3,227 +and 25,169,197 both claim ownership. Let us confirm this: + +---- +xfs_db> inode 25169197 +xfs_db> bmap +data offset 0 startblock 12632259 (3/49347) count 24 flag 0 +data offset 24 startblock 72256 (0/72256) count 16 flag 0 +data offset 40 startblock 12632299 (3/49387) count 18 flag 0 +xfs_db> inode 3227 +xfs_db> bmap +data offset 0 startblock 72232 (0/72232) count 58 flag 0 +---- + +Inodes 25,169,197 and 3,227 both contain mappings to block 0/72,256. diff --git a/design/XFS_Filesystem_Structure/reflink.asciidoc b/design/XFS_Filesystem_Structure/reflink.asciidoc new file mode 100644 index 0000000..f39e6ff --- /dev/null +++ b/design/XFS_Filesystem_Structure/reflink.asciidoc @@ -0,0 +1,40 @@ +[[Reflink_Deduplication]] += Sharing Data Blocks + +On a traditional filesystem, there is a 1:1 mapping between a logical block +offset in a file and a physical block on disk, which is to say that physical +blocks are not shared. However, there exist various use cases for being able +to share blocks between files -- deduplicating files saves space on archival +systems; creating space-efficient clones of disk images for virtual machines +and containers facilitates efficient datacenters; and deferring the payment of +the allocation cost of a file system tree copy as long as possible makes +regular work faster. In all of these cases, a write to one of the shared +copies *must* not affect the other shared copies, which means that writes to +shared blocks must employ a copy-on-write strategy. Sharing blocks in this +manner is commonly referred to as ``reflinking''. + +XFS implements block sharing in a fairly straightforward manner. All existing +data fork structures remain unchanged, save for the addition of a +per-allocation group xref:Reference_Count_Btree[reference count B+tree]. This +data structure tracks reference counts for all shared physical blocks, with a +few rules to maintain compatibility with existing code: If a block is free, it +will be tracked in the free space B+trees. If a block is owned by a single +file, it appears in neither the free space nor the reference count B+trees. If +a block is shared, it will appear in the reference count B+tree with a +reference count >= 2. The first two cases are established precedent in XFS, so +the third case is the only behavioral change. + +When a filesystem block is shared, the block mapping in the destination file is +updated to point to that filesystem block and the reference count btree records +are updated to reflect the increased refcount. If a shared block is written, a +new block will be allocated, the dirty data written to this new block, and the +file's block mapping updated to point to the new block. If a shared block is +unmapped, the reference count records are updated to reflect the decreased +refcount and the block is also freed if its reference count becomes zero. This +enables users to create space efficient clones of disk images and to copy +filesystem subtrees quickly, using the standard Linux coreutils packages. + +Deduplication employs the same mechanism to share blocks and copy them at write +time. However, the kernel confirms that the contents of both files are +identical before updating the destination file's mapping. This enables XFS to +be used by userspace deduplication programs such as +duperemove+. diff --git a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc index 4d089b6..4eec464 100644 --- a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc +++ b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc @@ -48,6 +48,8 @@ include::overview.asciidoc[] include::metadata_integrity.asciidoc[] +include::reflink.asciidoc[] + include::reconstruction.asciidoc[] include::common_types.asciidoc[] @@ -66,6 +68,8 @@ include::allocation_groups.asciidoc[] include::rmapbt.asciidoc[] +include::refcountbt.asciidoc[] + include::journaling_log.asciidoc[] include::internal_inodes.asciidoc[] From darrick.wong@oracle.com Wed Nov 11 13:25:12 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 61EC529E1F for ; Wed, 11 Nov 2015 13:25:12 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 03038AC001 for ; Wed, 11 Nov 2015 11:25:11 -0800 (PST) X-ASG-Debug-ID: 1447269910-04cb6c296c1250a0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id VYFsbmyAOZS5CZ3G (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:25:10 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJOoFT027325 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:24:50 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJOox4022144 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:24:50 GMT Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJOn0h018808; Wed, 11 Nov 2015 19:24:49 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:24:49 -0800 Subject: [PATCH 21/21] xfsdocs: move directory chapter before xattr chapter From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 21/21] xfsdocs: move directory chapter before xattr chapter To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: xfs@oss.sgi.com Date: Wed, 11 Nov 2015 11:24:48 -0800 Message-ID: <20151111192448.14235.56366.stgit@birch.djwong.org> In-Reply-To: <20151111192218.14235.13928.stgit@birch.djwong.org> References: <20151111192218.14235.13928.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447269910 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Since the chapter on directories introduces data structures that are referenced in the xattr chapter, the book should discuss directories first. Signed-off-by: Darrick J. Wong --- .../xfs_filesystem_structure.asciidoc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc index 4eec464..4ec563c 100644 --- a/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc +++ b/design/XFS_Filesystem_Structure/xfs_filesystem_structure.asciidoc @@ -85,10 +85,10 @@ include::ondisk_inode.asciidoc[] include::data_extents.asciidoc[] -include::extended_attributes.asciidoc[] - include::directories.asciidoc[] +include::extended_attributes.asciidoc[] + include::symbolic_links.asciidoc[] :leveloffset: 0 From darrick.wong@oracle.com Wed Nov 11 13:26:58 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A8B717F63 for ; Wed, 11 Nov 2015 13:26:58 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2B93CAC001 for ; Wed, 11 Nov 2015 11:26:58 -0800 (PST) X-ASG-Debug-ID: 1447270015-04cb6c296a125130001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id LKZfmtddHNgtBGk6 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:26:55 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJQUol028268 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:26:31 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJQUwm021609 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:26:30 GMT Received: from abhmp0006.oracle.com (abhmp0006.oracle.com [141.146.116.12]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJQUEe001739; Wed, 11 Nov 2015 19:26:30 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:26:29 -0800 Subject: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls From: "Darrick J. Wong" X-ASG-Orig-Subj: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Wed, 11 Nov 2015 11:26:28 -0800 Message-ID: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447270015 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Hi all, This is part of the third revision of an RFC for adding to XFS support for tracking reverse-mappings of physical blocks to file and metadata; and support for mapping multiple file logical blocks to the same physical block, more commonly known as reflinking. This patchset aims to make xfstests perform more rigorous testing of the NFS/CIFS/ocfs2/btrfs/XFS file clone, reflink, and dedupe ioctls. There are now tests of the basic functionality of the three ioctls; tests to ensure that the filesystem exhibits the expected copy on write semantics; tests to try to suss out race conditions in the new write paths; tests to ensure that the ioctls peform basic disk accounting correctly; tests of the interaction between reflink and the various fallocate verbs (allocate, punch, collapse, insert zeroes); and some attempts to test the upper limits of reflinking and ENOSPC behavior. Since the last posting, each test tries to reflink (or dedupe) on the test or scratch FS to decide if they're going to run, instead of guessing based on FS type. Per Dave's suggestion, I also converted the basic functionality tests to use fixed sizes so that I can use md5sum in the golden output to check that the file contents match exactly. Issues: * I think the race checks for dedupe could be a little sharper at finding mistakes. * The realtime reflink test (xfs/804) crashes XFS before we even get to the reflink attempt. * I started the numbering really high to prevent the tests from colliding with whatever new tests might arrive; this will require some intervention to fix. If you're going to start using this mess, you probably ought to just pull from my github trees for kernel[1], xfsprogs[2], xfstests[3], and xfs-docs[4]. They should just work with the btrfs that's in 4.3... and somewhat buggily with the 4.3 XFS patched with [1]. Comments and questions are, as always, welcome. --D [1] https://github.com/djwong/linux/tree/for-dave [2] https://github.com/djwong/xfsprogs/tree/for-dave [3] https://github.com/djwong/xfstests/tree/for-dave [4] https://github.com/djwong/xfs-documentation/tree/for-dave From darrick.wong@oracle.com Wed Nov 11 13:27:06 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 37EE429E1C for ; Wed, 11 Nov 2015 13:27:06 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 29B448F8035 for ; Wed, 11 Nov 2015 11:27:06 -0800 (PST) X-ASG-Debug-ID: 1447270022-04cbb0242212cdb0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id aBReiNR4xznMnaaG (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:27:02 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJQcTb028454 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:26:38 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJQcYv021966 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:26:38 GMT Received: from abhmp0011.oracle.com (abhmp0011.oracle.com [141.146.116.17]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABJQbgP014670; Wed, 11 Nov 2015 19:26:37 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:26:36 -0800 Subject: [PATCH 01/11] btrfs: move btrfs reflink tests to generic From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 01/11] btrfs: move btrfs reflink tests to generic To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Wed, 11 Nov 2015 11:26:35 -0800 Message-ID: <20151111192635.15056.96745.stgit@birch.djwong.org> In-Reply-To: <20151111192628.15056.6451.stgit@birch.djwong.org> References: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447270022 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT, UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Move the cp --reflink tests from btrfs/ to generic/ since xfs now supports that ioctl. Signed-off-by: Darrick J. Wong --- tests/btrfs/026 | 92 ----------------------------------------- tests/btrfs/026.out | 16 ------- tests/btrfs/027 | 109 ------------------------------------------------- tests/btrfs/027.out | 25 ----------- tests/btrfs/028 | 83 ------------------------------------- tests/btrfs/028.out | 7 --- tests/btrfs/group | 3 - tests/generic/800 | 92 +++++++++++++++++++++++++++++++++++++++++ tests/generic/800.out | 16 +++++++ tests/generic/801 | 109 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/801.out | 25 +++++++++++ tests/generic/802 | 83 +++++++++++++++++++++++++++++++++++++ tests/generic/802.out | 7 +++ tests/generic/group | 3 + 14 files changed, 335 insertions(+), 335 deletions(-) delete mode 100755 tests/btrfs/026 delete mode 100644 tests/btrfs/026.out delete mode 100755 tests/btrfs/027 delete mode 100644 tests/btrfs/027.out delete mode 100755 tests/btrfs/028 delete mode 100644 tests/btrfs/028.out create mode 100755 tests/generic/800 create mode 100644 tests/generic/800.out create mode 100755 tests/generic/801 create mode 100644 tests/generic/801.out create mode 100755 tests/generic/802 create mode 100644 tests/generic/802.out diff --git a/tests/btrfs/026 b/tests/btrfs/026 deleted file mode 100755 index 7559ca2..0000000 --- a/tests/btrfs/026 +++ /dev/null @@ -1,92 +0,0 @@ -#! /bin/bash -# FS QA Test No. 026 -# -# Tests file clone functionality of btrfs ("reflinks"): -# - Reflink a file -# - Reflink the reflinked file -# - Modify the original file -# - Modify the reflinked file -# -#----------------------------------------------------------------------- -# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it would be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write the Free Software Foundation, -# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -#----------------------------------------------------------------------- -# - -seq=`basename $0` -seqres=$RESULT_DIR/$seq -echo "QA output created by $seq" - -here=`pwd` -tmp=/tmp/$$ -status=1 # failure is the default! -trap "_cleanup; exit \$status" 0 1 2 3 15 - -_cleanup() -{ - cd / - rm -f $tmp.* -} - -# get standard environment, filters and checks -. common/rc -. common/filter - -# real QA test starts here -_supported_fs btrfs -_supported_os Linux - -_require_xfs_io_command "fiemap" -_require_cp_reflink -_require_test - -TESTDIR1=$TEST_DIR/test-$seq -rm -rf $TESTDIR1 -mkdir $TESTDIR1 - -_checksum_files() { - for F in original copy1 copy2 - do - md5sum $TESTDIR1/$F | _filter_test_dir - done -} - -rm -f $seqres.full - -echo "Create the original file and reflink to copy1, copy2" -$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original \ - >> $seqres.full 2>&1 -cp --reflink $TESTDIR1/original $TESTDIR1/copy1 -cp --reflink $TESTDIR1/copy1 $TESTDIR1/copy2 -_verify_reflink $TESTDIR1/original $TESTDIR1/copy1 -_verify_reflink $TESTDIR1/original $TESTDIR1/copy2 -echo "Original md5sums:" -_checksum_files - -echo "Overwrite original file with new data" -$XFS_IO_PROG -c 'pwrite -S 0x62 0 9000' $TESTDIR1/original \ - >> $seqres.full 2>&1 -echo "md5sums after overwriting original:" -_checksum_files - -echo "Overwrite copy1 with different new data" -$XFS_IO_PROG -c 'pwrite -S 0x63 0 9000' $TESTDIR1/copy1 \ - >> $seqres.full 2>&1 -echo "md5sums after overwriting copy1:" -_checksum_files - -# success, all done -status=0 -exit diff --git a/tests/btrfs/026.out b/tests/btrfs/026.out deleted file mode 100644 index 3b90ff0..0000000 --- a/tests/btrfs/026.out +++ /dev/null @@ -1,16 +0,0 @@ -QA output created by 026 -Create the original file and reflink to copy1, copy2 -Original md5sums: -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-026/original -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-026/copy1 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-026/copy2 -Overwrite original file with new data -md5sums after overwriting original: -4a847a25439532bf48b68c9e9536ed5b TEST_DIR/test-026/original -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-026/copy1 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-026/copy2 -Overwrite copy1 with different new data -md5sums after overwriting copy1: -4a847a25439532bf48b68c9e9536ed5b TEST_DIR/test-026/original -e271cd47d9f62ebc96cb4e67ae4d16db TEST_DIR/test-026/copy1 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-026/copy2 diff --git a/tests/btrfs/027 b/tests/btrfs/027 deleted file mode 100755 index d2b812b..0000000 --- a/tests/btrfs/027 +++ /dev/null @@ -1,109 +0,0 @@ -#! /bin/bash -# FS QA Test No. 027 -# -# Tests file clone functionality of btrfs ("reflinks") on directory -# trees. -# - Create directory and subdirectory, each having one file -# - Create 2 recursive reflinked copies of the tree -# - Modify the original files -# - Modify one of the copies -# -#----------------------------------------------------------------------- -# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it would be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write the Free Software Foundation, -# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -#----------------------------------------------------------------------- - -seq=`basename $0` -seqres=$RESULT_DIR/$seq -echo "QA output created by $seq" - -here=`pwd` -tmp=/tmp/$$ -status=1 # failure is the default! -trap "_cleanup; exit \$status" 0 1 2 3 15 - -_cleanup() -{ - cd / - rm -f $tmp.* -} - -# get standard environment, filters and checks -. common/rc -. common/filter - -# real QA test starts here -_supported_fs btrfs -_supported_os Linux - -_require_xfs_io_command "fiemap" -_require_cp_reflink -_require_test - -TESTDIR1=$TEST_DIR/test-$seq -rm -rf $TESTDIR1 -mkdir $TESTDIR1 - -_checksum_files() { - for F in original/file1 original/subdir/file2 \ - copy1/file1 copy1/subdir/file2 \ - copy2/file1 copy2/subdir/file2 - do - md5sum $TESTDIR1/$F | _filter_test_dir - done -} - -rm -f $seqres.full - -mkdir $TESTDIR1/original -mkdir $TESTDIR1/original/subdir - -echo "Create the original files and reflink dirs" -$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original/file1 \ - >> $seqres.full 2>&1 -$XFS_IO_PROG -f -c 'pwrite -S 0x62 0 11000' \ - $TESTDIR1/original/subdir/file2 >> $seqres.full 2>&1 -cp --recursive --reflink $TESTDIR1/original $TESTDIR1/copy1 -cp --recursive --reflink $TESTDIR1/copy1 $TESTDIR1/copy2 - -_verify_reflink $TESTDIR1/original/file1 $TESTDIR1/copy1/file1 -_verify_reflink $TESTDIR1/original/subdir/file2 \ - $TESTDIR1/copy1/subdir/file2 -_verify_reflink $TESTDIR1/original/file1 $TESTDIR1/copy2/file1 -_verify_reflink $TESTDIR1/original/subdir/file2 \ - $TESTDIR1/copy2/subdir/file2 - -echo "Original md5sums:" -_checksum_files - -echo "Overwrite original/file1 and original/subdir/file2 with new data" -$XFS_IO_PROG -c 'pwrite -S 0x63 0 13000' $TESTDIR1/original/file1 \ - >> $seqres.full 2>&1 -$XFS_IO_PROG -c 'pwrite -S 0x64 5000 1000' \ - $TESTDIR1/original/subdir/file2 >> $seqres.full 2>&1 -echo "md5sums now:" -_checksum_files - -echo "Overwrite copy1/file1 and copy1/subdir/file2 with new data" -$XFS_IO_PROG -c 'pwrite -S 0x65 0 9000' $TESTDIR1/copy1/file1 \ - >> $seqres.full 2>&1 -$XFS_IO_PROG -c 'pwrite -S 0x66 5000 25000' \ - $TESTDIR1/copy1/subdir/file2 >> $seqres.full 2>&1 -echo "md5sums now:" -_checksum_files - -# success, all done -status=0 -exit diff --git a/tests/btrfs/027.out b/tests/btrfs/027.out deleted file mode 100644 index 7b7e3bb..0000000 --- a/tests/btrfs/027.out +++ /dev/null @@ -1,25 +0,0 @@ -QA output created by 027 -Create the original files and reflink dirs -Original md5sums: -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/original/file1 -ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/original/subdir/file2 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy1/file1 -ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy1/subdir/file2 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy2/file1 -ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy2/subdir/file2 -Overwrite original/file1 and original/subdir/file2 with new data -md5sums now: -260f6785c0537fd12582dcae28a3c1a9 TEST_DIR/test-027/original/file1 -b8d91fb600f6f2191f2ba66665374860 TEST_DIR/test-027/original/subdir/file2 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy1/file1 -ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy1/subdir/file2 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy2/file1 -ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy2/subdir/file2 -Overwrite copy1/file1 and copy1/subdir/file2 with new data -md5sums now: -260f6785c0537fd12582dcae28a3c1a9 TEST_DIR/test-027/original/file1 -b8d91fb600f6f2191f2ba66665374860 TEST_DIR/test-027/original/subdir/file2 -b20229a003e3985c4b0e6806abcd6642 TEST_DIR/test-027/copy1/file1 -b815b24069db14e0a3a07169fd563e93 TEST_DIR/test-027/copy1/subdir/file2 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy2/file1 -ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy2/subdir/file2 diff --git a/tests/btrfs/028 b/tests/btrfs/028 deleted file mode 100755 index 7193337..0000000 --- a/tests/btrfs/028 +++ /dev/null @@ -1,83 +0,0 @@ -#! /bin/bash -# FS QA Test No. 028 -# -# Moving and deleting cloned ("reflinked") files on btrfs: -# - Create a file and a reflink -# - Move both to a directory -# - Delete the original (moved) file, check that the copy still exists. -# -#----------------------------------------------------------------------- -# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it would be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write the Free Software Foundation, -# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -#----------------------------------------------------------------------- - -seq=`basename $0` -seqres=$RESULT_DIR/$seq -echo "QA output created by $seq" - -here=`pwd` -tmp=/tmp/$$ -status=1 # failure is the default! -trap "_cleanup; exit \$status" 0 1 2 3 15 - -_cleanup() -{ - cd / - rm -f $tmp.* -} - -# get standard environment, filters and checks -. ./common/rc -. ./common/filter - -# real QA test starts here -_supported_fs btrfs -_supported_os Linux - -_require_xfs_io_command "fiemap" -_require_cp_reflink -_require_test - -rm -f $seqres.full - -TESTDIR1=$TEST_DIR/test-$seq -rm -rf $TESTDIR1 -mkdir $TESTDIR1 - -echo "Create the original files and reflink dirs" -$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original \ - >> $seqres.full -cp --reflink $TESTDIR1/original $TESTDIR1/copy - -_verify_reflink $TESTDIR1/original $TESTDIR1/copy - -echo "Move orig & reflink copy to subdir and md5sum:" -mkdir $TESTDIR1/subdir -mv $TESTDIR1/original $TESTDIR1/subdir/original_moved -mv $TESTDIR1/copy $TESTDIR1/subdir/copy_moved -_verify_reflink $TESTDIR1/subdir/original_moved \ - $TESTDIR1/subdir/copy_moved - -md5sum $TESTDIR1/subdir/original_moved | _filter_test_dir -md5sum $TESTDIR1/subdir/copy_moved | _filter_test_dir - -echo "remove orig from subdir and md5sum reflink copy:" -rm $TESTDIR1/subdir/original_moved -md5sum $TESTDIR1/subdir/copy_moved | _filter_test_dir -rm -rf $TESTDIR1/subdir - -# success, all done -status=0 -exit diff --git a/tests/btrfs/028.out b/tests/btrfs/028.out deleted file mode 100644 index f683fce..0000000 --- a/tests/btrfs/028.out +++ /dev/null @@ -1,7 +0,0 @@ -QA output created by 028 -Create the original files and reflink dirs -Move orig & reflink copy to subdir and md5sum: -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-028/subdir/original_moved -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-028/subdir/copy_moved -remove orig from subdir and md5sum reflink copy: -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-028/subdir/copy_moved diff --git a/tests/btrfs/group b/tests/btrfs/group index 7cf7dd7..c5d529f 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -28,9 +28,6 @@ 023 auto 024 auto quick compress 025 auto quick send clone -026 auto quick clone -027 auto quick clone -028 auto quick clone 029 auto quick clone 030 auto quick send 031 auto quick subvol clone diff --git a/tests/generic/800 b/tests/generic/800 new file mode 100755 index 0000000..a71f11a --- /dev/null +++ b/tests/generic/800 @@ -0,0 +1,92 @@ +#! /bin/bash +# FS QA Test No. 800 +# +# Tests file clone functionality of btrfs ("reflinks"): +# - Reflink a file +# - Reflink the reflinked file +# - Modify the original file +# - Modify the reflinked file +# +#----------------------------------------------------------------------- +# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. common/rc +. common/filter + +# real QA test starts here +_supported_fs btrfs +_supported_os Linux + +_require_xfs_io_command "fiemap" +_require_cp_reflink +_require_test + +TESTDIR1=$TEST_DIR/test-$seq +rm -rf $TESTDIR1 +mkdir $TESTDIR1 + +_checksum_files() { + for F in original copy1 copy2 + do + md5sum $TESTDIR1/$F | _filter_test_dir + done +} + +rm -f $seqres.full + +echo "Create the original file and reflink to copy1, copy2" +$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original \ + >> $seqres.full 2>&1 +cp --reflink $TESTDIR1/original $TESTDIR1/copy1 +cp --reflink $TESTDIR1/copy1 $TESTDIR1/copy2 +_verify_reflink $TESTDIR1/original $TESTDIR1/copy1 +_verify_reflink $TESTDIR1/original $TESTDIR1/copy2 +echo "Original md5sums:" +_checksum_files + +echo "Overwrite original file with new data" +$XFS_IO_PROG -c 'pwrite -S 0x62 0 9000' $TESTDIR1/original \ + >> $seqres.full 2>&1 +echo "md5sums after overwriting original:" +_checksum_files + +echo "Overwrite copy1 with different new data" +$XFS_IO_PROG -c 'pwrite -S 0x63 0 9000' $TESTDIR1/copy1 \ + >> $seqres.full 2>&1 +echo "md5sums after overwriting copy1:" +_checksum_files + +# success, all done +status=0 +exit diff --git a/tests/generic/800.out b/tests/generic/800.out new file mode 100644 index 0000000..6978d71 --- /dev/null +++ b/tests/generic/800.out @@ -0,0 +1,16 @@ +QA output created by 800 +Create the original file and reflink to copy1, copy2 +Original md5sums: +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-800/original +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-800/copy1 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-800/copy2 +Overwrite original file with new data +md5sums after overwriting original: +4a847a25439532bf48b68c9e9536ed5b TEST_DIR/test-800/original +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-800/copy1 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-800/copy2 +Overwrite copy1 with different new data +md5sums after overwriting copy1: +4a847a25439532bf48b68c9e9536ed5b TEST_DIR/test-800/original +e271cd47d9f62ebc96cb4e67ae4d16db TEST_DIR/test-800/copy1 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-800/copy2 diff --git a/tests/generic/801 b/tests/generic/801 new file mode 100755 index 0000000..b21c44b --- /dev/null +++ b/tests/generic/801 @@ -0,0 +1,109 @@ +#! /bin/bash +# FS QA Test No. 801 +# +# Tests file clone functionality of btrfs ("reflinks") on directory +# trees. +# - Create directory and subdirectory, each having one file +# - Create 2 recursive reflinked copies of the tree +# - Modify the original files +# - Modify one of the copies +# +#----------------------------------------------------------------------- +# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. common/rc +. common/filter + +# real QA test starts here +_supported_fs btrfs +_supported_os Linux + +_require_xfs_io_command "fiemap" +_require_cp_reflink +_require_test + +TESTDIR1=$TEST_DIR/test-$seq +rm -rf $TESTDIR1 +mkdir $TESTDIR1 + +_checksum_files() { + for F in original/file1 original/subdir/file2 \ + copy1/file1 copy1/subdir/file2 \ + copy2/file1 copy2/subdir/file2 + do + md5sum $TESTDIR1/$F | _filter_test_dir + done +} + +rm -f $seqres.full + +mkdir $TESTDIR1/original +mkdir $TESTDIR1/original/subdir + +echo "Create the original files and reflink dirs" +$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original/file1 \ + >> $seqres.full 2>&1 +$XFS_IO_PROG -f -c 'pwrite -S 0x62 0 11000' \ + $TESTDIR1/original/subdir/file2 >> $seqres.full 2>&1 +cp --recursive --reflink $TESTDIR1/original $TESTDIR1/copy1 +cp --recursive --reflink $TESTDIR1/copy1 $TESTDIR1/copy2 + +_verify_reflink $TESTDIR1/original/file1 $TESTDIR1/copy1/file1 +_verify_reflink $TESTDIR1/original/subdir/file2 \ + $TESTDIR1/copy1/subdir/file2 +_verify_reflink $TESTDIR1/original/file1 $TESTDIR1/copy2/file1 +_verify_reflink $TESTDIR1/original/subdir/file2 \ + $TESTDIR1/copy2/subdir/file2 + +echo "Original md5sums:" +_checksum_files + +echo "Overwrite original/file1 and original/subdir/file2 with new data" +$XFS_IO_PROG -c 'pwrite -S 0x63 0 13000' $TESTDIR1/original/file1 \ + >> $seqres.full 2>&1 +$XFS_IO_PROG -c 'pwrite -S 0x64 5000 1000' \ + $TESTDIR1/original/subdir/file2 >> $seqres.full 2>&1 +echo "md5sums now:" +_checksum_files + +echo "Overwrite copy1/file1 and copy1/subdir/file2 with new data" +$XFS_IO_PROG -c 'pwrite -S 0x65 0 9000' $TESTDIR1/copy1/file1 \ + >> $seqres.full 2>&1 +$XFS_IO_PROG -c 'pwrite -S 0x66 5000 25000' \ + $TESTDIR1/copy1/subdir/file2 >> $seqres.full 2>&1 +echo "md5sums now:" +_checksum_files + +# success, all done +status=0 +exit diff --git a/tests/generic/801.out b/tests/generic/801.out new file mode 100644 index 0000000..b8225cc --- /dev/null +++ b/tests/generic/801.out @@ -0,0 +1,25 @@ +QA output created by 801 +Create the original files and reflink dirs +Original md5sums: +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-801/original/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-801/original/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-801/copy1/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-801/copy1/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-801/copy2/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-801/copy2/subdir/file2 +Overwrite original/file1 and original/subdir/file2 with new data +md5sums now: +260f6785c0537fd12582dcae28a3c1a9 TEST_DIR/test-801/original/file1 +b8d91fb600f6f2191f2ba66665374860 TEST_DIR/test-801/original/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-801/copy1/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-801/copy1/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-801/copy2/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-801/copy2/subdir/file2 +Overwrite copy1/file1 and copy1/subdir/file2 with new data +md5sums now: +260f6785c0537fd12582dcae28a3c1a9 TEST_DIR/test-801/original/file1 +b8d91fb600f6f2191f2ba66665374860 TEST_DIR/test-801/original/subdir/file2 +b20229a003e3985c4b0e6806abcd6642 TEST_DIR/test-801/copy1/file1 +b815b24069db14e0a3a07169fd563e93 TEST_DIR/test-801/copy1/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-801/copy2/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-801/copy2/subdir/file2 diff --git a/tests/generic/802 b/tests/generic/802 new file mode 100755 index 0000000..afd8513 --- /dev/null +++ b/tests/generic/802 @@ -0,0 +1,83 @@ +#! /bin/bash +# FS QA Test No. 802 +# +# Moving and deleting cloned ("reflinked") files on btrfs: +# - Create a file and a reflink +# - Move both to a directory +# - Delete the original (moved) file, check that the copy still exists. +# +#----------------------------------------------------------------------- +# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here +_supported_fs btrfs +_supported_os Linux + +_require_xfs_io_command "fiemap" +_require_cp_reflink +_require_test + +rm -f $seqres.full + +TESTDIR1=$TEST_DIR/test-$seq +rm -rf $TESTDIR1 +mkdir $TESTDIR1 + +echo "Create the original files and reflink dirs" +$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original \ + >> $seqres.full +cp --reflink $TESTDIR1/original $TESTDIR1/copy + +_verify_reflink $TESTDIR1/original $TESTDIR1/copy + +echo "Move orig & reflink copy to subdir and md5sum:" +mkdir $TESTDIR1/subdir +mv $TESTDIR1/original $TESTDIR1/subdir/original_moved +mv $TESTDIR1/copy $TESTDIR1/subdir/copy_moved +_verify_reflink $TESTDIR1/subdir/original_moved \ + $TESTDIR1/subdir/copy_moved + +md5sum $TESTDIR1/subdir/original_moved | _filter_test_dir +md5sum $TESTDIR1/subdir/copy_moved | _filter_test_dir + +echo "remove orig from subdir and md5sum reflink copy:" +rm $TESTDIR1/subdir/original_moved +md5sum $TESTDIR1/subdir/copy_moved | _filter_test_dir +rm -rf $TESTDIR1/subdir + +# success, all done +status=0 +exit diff --git a/tests/generic/802.out b/tests/generic/802.out new file mode 100644 index 0000000..c20e16e --- /dev/null +++ b/tests/generic/802.out @@ -0,0 +1,7 @@ +QA output created by 802 +Create the original files and reflink dirs +Move orig & reflink copy to subdir and md5sum: +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-802/subdir/original_moved +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-802/subdir/copy_moved +remove orig from subdir and md5sum reflink copy: +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-802/subdir/copy_moved diff --git a/tests/generic/group b/tests/generic/group index 1dd4269..d9421c5 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -208,3 +208,6 @@ 323 auto aio stress 324 auto fsr quick 325 auto quick data log +800 auto quick clone +801 auto quick clone +802 auto quick clone From darrick.wong@oracle.com Wed Nov 11 13:27:08 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D899029E27 for ; Wed, 11 Nov 2015 13:27:08 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 94BEA8F8040 for ; Wed, 11 Nov 2015 11:27:08 -0800 (PST) X-ASG-Debug-ID: 1447270025-04bdf03f02121430001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id eBpjOTfGNpZ0Wivw (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:27:06 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJQiBR028581 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:26:44 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJQinp027921 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:26:44 GMT Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJQhhs001823; Wed, 11 Nov 2015 19:26:44 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:26:43 -0800 Subject: [PATCH 02/11] generic/80[0-2]: support xfs in addition to btrfs From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 02/11] generic/80[0-2]: support xfs in addition to btrfs To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Wed, 11 Nov 2015 11:26:42 -0800 Message-ID: <20151111192642.15056.75362.stgit@birch.djwong.org> In-Reply-To: <20151111192628.15056.6451.stgit@birch.djwong.org> References: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447270026 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT, UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Modify the reflink tests to support xfs. Signed-off-by: Darrick J. Wong --- common/rc | 42 ++++++------ common/reflink | 179 +++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/btrfs/029 | 1 tests/btrfs/031 | 1 tests/btrfs/108 | 1 tests/btrfs/109 | 1 tests/generic/800 | 3 + tests/generic/801 | 3 + tests/generic/802 | 3 + 9 files changed, 210 insertions(+), 24 deletions(-) create mode 100644 common/reflink diff --git a/common/rc b/common/rc index adf1edf..c016673 100644 --- a/common/rc +++ b/common/rc @@ -82,6 +82,27 @@ _md5_checksum() md5sum $1 | cut -d ' ' -f1 } +# Write a byte into a range of a file +_pwrite_byte() { + pattern="$1" + offset="$2" + len="$3" + file="$4" + xfs_io_args="$5" + + "$XFS_IO_PROG" $xfs_io_args -f -c "pwrite -S $pattern $offset $len" "$file" +} + +# mmap-write a byte into a range of a file +_mwrite_byte() { + pattern="$1" + offset="$2" + len="$3" + mmap_len="$4" + file="$5" + + "$XFS_IO_PROG" -f -c "mmap -rw 0 $mmap_len" -c "pwrite -S $pattern $offset $len" "$file" +} # ls -l w/ selinux sometimes puts a dot at the end: # -rwxrw-r--. id1 id2 file1 @@ -2569,12 +2590,6 @@ _require_ugid_map() fi } -_require_cp_reflink() -{ - cp --help | grep -q reflink || \ - _notrun "This test requires a cp with --reflink support." -} - _require_fssum() { FSSUM_PROG=$here/src/fssum @@ -2588,21 +2603,6 @@ _require_cloner() _notrun "cloner binary not present at $CLONER_PROG" } -# Given 2 files, verify that they have the same mapping but different -# inodes - i.e. an undisturbed reflink -# Silent if so, make noise if not -_verify_reflink() -{ - # not a hard link or symlink? - cmp -s <(stat -c '%i' $1) <(stat -c '%i' $2) \ - && echo "$1 and $2 are not reflinks: same inode number" - - # same mapping? - diff -u <($XFS_IO_PROG -c "fiemap" $1 | grep -v $1) \ - <($XFS_IO_PROG -c "fiemap" $2 | grep -v $2) \ - || echo "$1 and $2 are not reflinks: different extents" -} - _require_atime() { if [ "$FSTYP" == "nfs" ]; then diff --git a/common/reflink b/common/reflink new file mode 100644 index 0000000..d65816b --- /dev/null +++ b/common/reflink @@ -0,0 +1,179 @@ +##/bin/bash +# Routines for reflinking, deduping, and comparing parts of files. +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle. All Rights Reserved. +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 +# USA +# +# Contact information: Oracle Corporation, 500 Oracle Parkway, +# Redwood Shores, CA 94065, USA, or: http://www.oracle.com/ +#----------------------------------------------------------------------- + +# Check that cp has a reflink argument +_require_cp_reflink() +{ + cp --help | grep -q reflink || \ + _notrun "This test requires a cp with --reflink support." +} + +# Given 2 files, verify that they have the same mapping but different +# inodes - i.e. an undisturbed reflink +# Silent if so, make noise if not +_verify_reflink() +{ + # not a hard link or symlink? + cmp -s <(stat -c '%i' $1) <(stat -c '%i' $2) \ + && echo "$1 and $2 are not reflinks: same inode number" + + # same mapping? + diff -u <($XFS_IO_PROG -c "fiemap" $1 | grep -v $1) \ + <($XFS_IO_PROG -c "fiemap" $2 | grep -v $2) \ + || echo "$1 and $2 are not reflinks: different extents" +} + +# New reflink/dedupe helpers + +# this test requires the test fs support reflink... +_require_test_reflink() +{ + _require_test + _require_xfs_io_command "reflink" + + rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2" + "$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$TEST_DIR/file1" > /dev/null + "$XFS_IO_PROG" -f -c "reflink $TEST_DIR/file1 0 0 65536" "$TEST_DIR/file2" > /dev/null + if [ ! -s "$TEST_DIR/file2" ]; then + rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2" + _notrun "Reflink not supported by test filesystem type: $FSTYP" + fi + rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2" +} + +# this test requires the scratch fs support reflink... +_require_scratch_reflink() +{ + _require_scratch + _require_xfs_io_command "reflink" + + _scratch_mkfs > /dev/null + _scratch_mount + "$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$SCRATCH_MNT/file1" > /dev/null + "$XFS_IO_PROG" -f -c "reflink $SCRATCH_MNT/file1 0 0 65536" "$SCRATCH_MNT/file2" > /dev/null + if [ ! -s "$SCRATCH_MNT/file2" ]; then + _scratch_unmount + _notrun "Reflink not supported by scratch filesystem type: $FSTYP" + fi + _scratch_unmount +} + +# this test requires the test fs support dedupe... +_require_test_dedupe() +{ + _require_test + _require_xfs_io_command "dedupe" + + rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2" + "$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$TEST_DIR/file1" > /dev/null + "$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$TEST_DIR/file2" > /dev/null + testio="$("$XFS_IO_PROG" -f -c "dedupe $TEST_DIR/file1 0 0 65536" "$TEST_DIR/file2" 2>&1)" + echo $testio | grep -q "Operation not supported" && \ + _notrun "Dedupe not supported by test filesystem type: $FSTYP" + rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2" +} + +# this test requires the scratch fs support dedupe... +_require_scratch_dedupe() +{ + _require_scratch + _require_xfs_io_command "dedupe" + + _scratch_mkfs > /dev/null + _scratch_mount + "$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$SCRATCH_MNT/file1" > /dev/null + "$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$SCRATCH_MNT/file2" > /dev/null + testio="$("$XFS_IO_PROG" -f -c "dedupe $TEST_DIR/file1 0 0 65536" "$TEST_DIR/file2" 2>&1)" + echo $testio | grep -q "Operation not supported" && \ + _notrun "Dedupe not supported by test filesystem type: $FSTYP" + _scratch_unmount +} + +# Prints a range of a file as a hex dump +_read_range() { + file="$1" + offset="$2" + len="$3" + xfs_io_args="$4" + + $XFS_IO_PROG $xfs_io_args -f -c "pread -q -v $offset $len" "$file" | cut -d ' ' -f '3-18' +} + +# Compare ranges of two files +_compare_range() { + file1="$1" + offset1="$2" + file2="$3" + offset2="$4" + len="$5" + + cmp -s <(_read_range "$file1" "$offset1" "$len") \ + <(_read_range "$file2" "$offset2" "$len") +} + +# Prints the md5 checksum of a hexdump of a part of a given file +_md5_range_checksum() { + file="$1" + offset="$2" + len="$3" + + md5sum <(_read_range "$file" "$offset" "$len") | cut -d ' ' -f 1 +} + +# Reflink some file1 into file2 via cp +_cp_reflink() { + file1="$1" + file2="$2" + + cp --reflink=always "$file1" "$file2" +} + +# Reflink some file1 into file2 +_reflink() { + file1="$1" + file2="$2" + + "$XFS_IO_PROG" -f -c "reflink $file1" "$file2" +} + +# Reflink some part of file1 into another part of file2 +_reflink_range() { + file1="$1" + offset1="$2" + file2="$3" + offset2="$4" + len="$5" + + "$XFS_IO_PROG" -f -c "reflink $file1 $offset1 $offset2 $len" "$file2" +} + +# Dedupe some part of file1 into another part of file2 +_dedupe_range() { + file1="$1" + offset1="$2" + file2="$3" + offset2="$4" + len="$5" + + "$XFS_IO_PROG" -f -c "dedupe $file1 $offset1 $offset2 $len" "$file2" +} diff --git a/tests/btrfs/029 b/tests/btrfs/029 index 0b77b33..175317a 100755 --- a/tests/btrfs/029 +++ b/tests/btrfs/029 @@ -47,6 +47,7 @@ _cleanup() # get standard environment, filters and checks . ./common/rc . ./common/filter +. ./common/reflink # real QA test starts here _supported_fs btrfs diff --git a/tests/btrfs/031 b/tests/btrfs/031 index bcd332c..c5763da 100755 --- a/tests/btrfs/031 +++ b/tests/btrfs/031 @@ -48,6 +48,7 @@ _cleanup() # get standard environment, filters and checks . ./common/rc . ./common/filter +. ./common/reflink # real QA test starts here _supported_fs btrfs diff --git a/tests/btrfs/108 b/tests/btrfs/108 index 5e3a403..18e5b99 100755 --- a/tests/btrfs/108 +++ b/tests/btrfs/108 @@ -41,6 +41,7 @@ _cleanup() # get standard environment, filters and checks . ./common/rc . ./common/filter +. ./common/reflink # real QA test starts here _supported_fs btrfs diff --git a/tests/btrfs/109 b/tests/btrfs/109 index e2aeb73..b86336c 100755 --- a/tests/btrfs/109 +++ b/tests/btrfs/109 @@ -41,6 +41,7 @@ _cleanup() # get standard environment, filters and checks . ./common/rc . ./common/filter +. ./common/reflink # real QA test starts here _supported_fs btrfs diff --git a/tests/generic/800 b/tests/generic/800 index a71f11a..1e73c33 100755 --- a/tests/generic/800 +++ b/tests/generic/800 @@ -43,9 +43,10 @@ _cleanup() # get standard environment, filters and checks . common/rc . common/filter +. common/reflink # real QA test starts here -_supported_fs btrfs +_require_test_reflink _supported_os Linux _require_xfs_io_command "fiemap" diff --git a/tests/generic/801 b/tests/generic/801 index b21c44b..2facea9 100755 --- a/tests/generic/801 +++ b/tests/generic/801 @@ -43,9 +43,10 @@ _cleanup() # get standard environment, filters and checks . common/rc . common/filter +. common/reflink # real QA test starts here -_supported_fs btrfs +_require_test_reflink _supported_os Linux _require_xfs_io_command "fiemap" diff --git a/tests/generic/802 b/tests/generic/802 index afd8513..aaca2b4 100755 --- a/tests/generic/802 +++ b/tests/generic/802 @@ -41,9 +41,10 @@ _cleanup() # get standard environment, filters and checks . ./common/rc . ./common/filter +. ./common/reflink # real QA test starts here -_supported_fs btrfs +_require_test_reflink _supported_os Linux _require_xfs_io_command "fiemap" From darrick.wong@oracle.com Wed Nov 11 13:27:25 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6015929E1F for ; Wed, 11 Nov 2015 13:27:25 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 50033304043 for ; Wed, 11 Nov 2015 11:27:25 -0800 (PST) X-ASG-Debug-ID: 1447270038-04cbb0242212cdc0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id GEWKiZ0pi9lxm7va (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:27:18 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJQpPn029933 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:26:51 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABJQp74006922 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:26:51 GMT Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJQpiw001945; Wed, 11 Nov 2015 19:26:51 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:26:50 -0800 Subject: [PATCH 03/11] reflink: basic tests of the reflink and dedupe ioctls From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 03/11] reflink: basic tests of the reflink and dedupe ioctls To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Wed, 11 Nov 2015 11:26:49 -0800 Message-ID: <20151111192648.15056.40329.stgit@birch.djwong.org> In-Reply-To: <20151111192628.15056.6451.stgit@birch.djwong.org> References: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447270038 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Test the operation of the btrfs (and now xfs) reflink and dedupe ioctls at various file offsets and with matching and nonmatching files. Signed-off-by: Darrick J. Wong --- tests/generic/803 | 92 +++++++++++++++++++++++++++ tests/generic/803.out | 8 ++ tests/generic/804 | 93 +++++++++++++++++++++++++++ tests/generic/804.out | 11 +++ tests/generic/805 | 170 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/805.out | 30 +++++++++ tests/generic/806 | 92 +++++++++++++++++++++++++++ tests/generic/806.out | 8 ++ tests/generic/807 | 92 +++++++++++++++++++++++++++ tests/generic/807.out | 12 +++ tests/generic/817 | 128 +++++++++++++++++++++++++++++++++++++ tests/generic/817.out | 16 +++++ tests/generic/818 | 128 +++++++++++++++++++++++++++++++++++++ tests/generic/818.out | 17 +++++ tests/generic/819 | 131 ++++++++++++++++++++++++++++++++++++++ tests/generic/819.out | 8 ++ tests/generic/group | 8 ++ 17 files changed, 1044 insertions(+) create mode 100755 tests/generic/803 create mode 100644 tests/generic/803.out create mode 100755 tests/generic/804 create mode 100644 tests/generic/804.out create mode 100755 tests/generic/805 create mode 100644 tests/generic/805.out create mode 100755 tests/generic/806 create mode 100644 tests/generic/806.out create mode 100755 tests/generic/807 create mode 100644 tests/generic/807.out create mode 100755 tests/generic/817 create mode 100644 tests/generic/817.out create mode 100755 tests/generic/818 create mode 100644 tests/generic/818.out create mode 100755 tests/generic/819 create mode 100644 tests/generic/819.out diff --git a/tests/generic/803 b/tests/generic/803 new file mode 100755 index 0000000..14c9e98 --- /dev/null +++ b/tests/generic/803 @@ -0,0 +1,92 @@ +#! /bin/bash +# FS QA Test No. 803 +# +# Ensure that we can reflink parts of two identical files: +# - Reflink identical parts of two identical files +# - Check that we still have identical contents +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file2" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 8)) \ + || echo "Files do not match" + +echo "Reflink the middle blocks together" +free_before="$(stat -f -c '%a' "$TESTDIR")" +_reflink_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) >> "$seqres.full" +_test_remount +free_after="$(stat -f -c '%a' "$TESTDIR")" +echo "freesp changed by $free_before -> $free_after" >> "$seqres.full" + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \ + || echo "Start sections do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) \ + || echo "Middle sections do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 6)) "$TESTDIR/file2" \ + $((BLKSZ * 6)) $((BLKSZ * 2)) \ + || echo "End sections do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/803.out b/tests/generic/803.out new file mode 100644 index 0000000..09099aa --- /dev/null +++ b/tests/generic/803.out @@ -0,0 +1,8 @@ +QA output created by 803 +Create the original files +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-803/file1 +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-803/file2 +Reflink the middle blocks together +Compare sections +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-803/file1 +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-803/file2 diff --git a/tests/generic/804 b/tests/generic/804 new file mode 100755 index 0000000..611ad51 --- /dev/null +++ b/tests/generic/804 @@ -0,0 +1,93 @@ +#! /bin/bash +# FS QA Test No. 804 +# +# Ensuring that we can reflink non-matching parts of files: +# - Reflink identical ranges of two different files +# - Check that the non-linked ranges still do not match +# - Check that we end up with identical contents in the linked ranges +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file2" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 8)) \ + || echo "Files do not match (intentional)" + +echo "Reflink the middle blocks together" +free_before="$(stat -f -c '%a' "$TESTDIR")" +_reflink_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) >> "$seqres.full" +_test_remount +free_after="$(stat -f -c '%a' "$TESTDIR")" +echo "freesp changed by $free_before -> $free_after" >> "$seqres.full" + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \ + || echo "Start sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) \ + || echo "Middle sections do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 6)) "$TESTDIR/file2" \ + $((BLKSZ * 6)) $((BLKSZ * 2)) \ + || echo "End sections do not match (intentional)" + +# success, all done +status=0 +exit diff --git a/tests/generic/804.out b/tests/generic/804.out new file mode 100644 index 0000000..ad40ca2 --- /dev/null +++ b/tests/generic/804.out @@ -0,0 +1,11 @@ +QA output created by 804 +Create the original files +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-804/file1 +5e3501f97fd2669babfcbd3e1972e833 TEST_DIR/test-804/file2 +Files do not match (intentional) +Reflink the middle blocks together +Compare sections +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-804/file1 +f7f9e44d37909868014e9151f5293ab0 TEST_DIR/test-804/file2 +Start sections do not match (intentional) +End sections do not match (intentional) diff --git a/tests/generic/805 b/tests/generic/805 new file mode 100755 index 0000000..41ef722 --- /dev/null +++ b/tests/generic/805 @@ -0,0 +1,170 @@ +#! /bin/bash +# FS QA Test No. 805 +# +# Reflinking two sets of files together: +# - Reflink identical parts of two identical files +# - Reflink identical parts of two other identical files +# - Reflink identical parts of all four files +# - Check that we end up with identical contents +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink + +rm -f "$seqres.full" + +TESTDIR=$TEST_DIR/test-$seq +rm -rf $TESTDIR +mkdir $TESTDIR + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ * 8)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $((BLKSZ * 8)) "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x63 0 $((BLKSZ * 8)) "$TESTDIR/file3" >> "$seqres.full" +_pwrite_byte 0x64 0 $((BLKSZ * 8)) "$TESTDIR/file4" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 8)) \ + || echo "Files 1-2 do not match (intentional)" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $((BLKSZ * 8)) \ + || echo "Files 1-3 do not match (intentional)" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file4" 0 $((BLKSZ * 8)) \ + || echo "Files 1-4 do not match (intentional)" + +echo "Reflink the first four blocks together, 1-2 3-4" +free_before="$(stat -f -c '%a' "$TESTDIR")" +_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) >> "$seqres.full" +_reflink_range "$TESTDIR/file3" 0 "$TESTDIR/file4" 0 $((BLKSZ * 4)) >> "$seqres.full" +_test_remount +free_after="$(stat -f -c '%a' "$TESTDIR")" +echo "freesp changed by $free_before -> $free_after" >> "$seqres.full" + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \ + || echo "Sections of file 1-2 do not match" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $((BLKSZ * 4)) \ + || echo "Sections of file 1-3 do not match (intentional)" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file4" 0 $((BLKSZ * 4)) \ + || echo "Sections of file 1-4 do not match (intentional)" + +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file3" 0 $((BLKSZ * 4)) \ + || echo "Sections of file 2-3 do not match (intentional)" + +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file4" 0 $((BLKSZ * 4)) \ + || echo "Sections of file 2-4 do not match (intentional)" + +_compare_range "$TESTDIR/file3" 0 "$TESTDIR/file4" 0 $((BLKSZ * 4)) \ + || echo "Sections of file 3-4 do not match" + +echo "Reflink the first two blocks together, 1-3 1-4" +free_before="$(stat -f -c '%a' $TESTDIR)" +_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $((BLKSZ * 2)) >> "$seqres.full" +_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file4" 0 $((BLKSZ * 2)) >> "$seqres.full" +_test_remount +free_after="$(stat -f -c '%a' $TESTDIR)" +echo "freesp changed by $free_before -> $free_after" >> "$seqres.full" + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 2)) \ + || echo "Sections of files 1-2 do not match" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $((BLKSZ * 2)) \ + || echo "Sections of files 1-3 do not match" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file4" 0 $((BLKSZ * 2)) \ + || echo "Sections of files 1-4 do not match" + +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file3" 0 $((BLKSZ * 2)) \ + || echo "Sections of files 2-3 do not match" + +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file4" 0 $((BLKSZ * 2)) \ + || echo "Sections of files 2-4 do not match" + +_compare_range "$TESTDIR/file3" 0 "$TESTDIR/file4" 0 $((BLKSZ * 2)) \ + || echo "Sections of files 3-4 do not match" + +echo "Compare previously reflinked sections" +_compare_range "$TESTDIR/file1" $((BLKSZ * 2)) "$TESTDIR/file2" \ + $((BLKSZ * 2)) $((BLKSZ * 2)) \ + || echo "Sections of file 1-2 do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 2)) "$TESTDIR/file3" \ + $((BLKSZ * 2)) $((BLKSZ * 2)) \ + || echo "Sections of file 1-3 do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 2)) "$TESTDIR/file4" \ + $((BLKSZ * 2)) $((BLKSZ * 2)) \ + || echo "Sections of file 1-4 do not match (intentional)" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 2)) "$TESTDIR/file3" \ + $((BLKSZ * 2)) $((BLKSZ * 2)) \ + || echo "Sections of file 2-3 do not match (intentional)" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 2)) "$TESTDIR/file4" \ + $((BLKSZ * 2)) $((BLKSZ * 2)) \ + || echo "Sections of file 2-4 do not match (intentional)" + +_compare_range "$TESTDIR/file3" $((BLKSZ * 2)) "$TESTDIR/file4" \ + $((BLKSZ * 2)) $((BLKSZ * 2)) \ + || echo "Sections of file 3-4 do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/805.out b/tests/generic/805.out new file mode 100644 index 0000000..82f9658 --- /dev/null +++ b/tests/generic/805.out @@ -0,0 +1,30 @@ +QA output created by 805 +Create the original files +30c2557e8302a5beb290c71520d87f42 TEST_DIR/test-805/file1 +efb787f7990e43c7dc30565d8cc344d4 TEST_DIR/test-805/file2 +c83f38d4622a78b74e3480634194b08f TEST_DIR/test-805/file3 +1c11fd3151d2229f5cf43903386aa432 TEST_DIR/test-805/file4 +Files 1-2 do not match (intentional) +Files 1-3 do not match (intentional) +Files 1-4 do not match (intentional) +Reflink the first four blocks together, 1-2 3-4 +Compare sections +30c2557e8302a5beb290c71520d87f42 TEST_DIR/test-805/file1 +63bdb182cdf03a8a19e83234d869d00a TEST_DIR/test-805/file2 +c83f38d4622a78b74e3480634194b08f TEST_DIR/test-805/file3 +dc2ae3db14e97fad93faf939170b085c TEST_DIR/test-805/file4 +Sections of file 1-3 do not match (intentional) +Sections of file 1-4 do not match (intentional) +Sections of file 2-3 do not match (intentional) +Sections of file 2-4 do not match (intentional) +Reflink the first two blocks together, 1-3 1-4 +Compare sections +30c2557e8302a5beb290c71520d87f42 TEST_DIR/test-805/file1 +63bdb182cdf03a8a19e83234d869d00a TEST_DIR/test-805/file2 +89a444ff9d6af60ba487e9a0ca2161e2 TEST_DIR/test-805/file3 +0c263058794a54c5e197ece52386f5be TEST_DIR/test-805/file4 +Compare previously reflinked sections +Sections of file 1-3 do not match (intentional) +Sections of file 1-4 do not match (intentional) +Sections of file 2-3 do not match (intentional) +Sections of file 2-4 do not match (intentional) diff --git a/tests/generic/806 b/tests/generic/806 new file mode 100755 index 0000000..ab973e3 --- /dev/null +++ b/tests/generic/806 @@ -0,0 +1,92 @@ +#! /bin/bash +# FS QA Test No. 806 +# +# Ensure that we can dedupe parts of two files: +# - Dedupe identical parts of two identical files +# - Check that still have identical contents +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file2" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 8)) \ + || echo "Files 1-2 do not match (intentional)" + +echo "Dedupe the middle blocks together" +free_before="$(stat -f -c '%a' "$TESTDIR")" +_dedupe_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) >> "$seqres.full" +_test_remount +free_after="$(stat -f -c '%a' "$TESTDIR")" +echo "freesp changed by $free_before -> $free_after" >> "$seqres.full" + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \ + || echo "Start sections do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) \ + || echo "Middle sections do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 6)) "$TESTDIR/file2" \ + $((BLKSZ * 6)) $((BLKSZ * 2)) \ + || echo "End sections do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/806.out b/tests/generic/806.out new file mode 100644 index 0000000..781b545 --- /dev/null +++ b/tests/generic/806.out @@ -0,0 +1,8 @@ +QA output created by 806 +Create the original files +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-806/file1 +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-806/file2 +Dedupe the middle blocks together +Compare sections +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-806/file1 +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-806/file2 diff --git a/tests/generic/807 b/tests/generic/807 new file mode 100755 index 0000000..6f5168a --- /dev/null +++ b/tests/generic/807 @@ -0,0 +1,92 @@ +#! /bin/bash +# FS QA Test No. 807 +# +# Ensuring that we cannot dedupe non-matching parts of files: +# - Fail to dedupe non-identical parts of two different files +# - Check that nothing changes in either file +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_dedupe + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file2" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 "$((BLKSZ * 8))" \ + || echo "Files 1-2 do not match (intentional)" + +echo "(Fail to) dedupe the middle blocks together" +free_before="$(stat -f -c '%a' "$TESTDIR")" +_dedupe_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) >> "$seqres.full" +_test_remount +free_after="$(stat -f -c '%a' "$TESTDIR")" +echo "freesp changed by $free_before -> $free_after" >> "$seqres.full" + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \ + || echo "Start sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) \ + || echo "Middle sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 6)) "$TESTDIR/file2" \ + $((BLKSZ * 6)) $((BLKSZ * 2)) \ + || echo "End sections do not match (intentional)" + +# success, all done +status=0 +exit diff --git a/tests/generic/807.out b/tests/generic/807.out new file mode 100644 index 0000000..424d039 --- /dev/null +++ b/tests/generic/807.out @@ -0,0 +1,12 @@ +QA output created by 807 +Create the original files +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-807/file1 +5e3501f97fd2669babfcbd3e1972e833 TEST_DIR/test-807/file2 +Files 1-2 do not match (intentional) +(Fail to) dedupe the middle blocks together +Compare sections +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-807/file1 +5e3501f97fd2669babfcbd3e1972e833 TEST_DIR/test-807/file2 +Start sections do not match (intentional) +Middle sections do not match (intentional) +End sections do not match (intentional) diff --git a/tests/generic/817 b/tests/generic/817 new file mode 100755 index 0000000..667a79e --- /dev/null +++ b/tests/generic/817 @@ -0,0 +1,128 @@ +#! /bin/bash +# FS QA Test No. 817 +# +# Ensure that we can reflink the last block of a file whose size isn't +# block-aligned. +# - Create two 'a' files file whose size isn't block-aligned. +# - Create two 'b' files file whose size isn't block-aligned. +# - Reflink the last block of file1 to the last block in file2 and file3. +# - Check that files 1-2 match, 3-4 don't match, and that nothing matches 3. +# - Check that the ends of 1-3 match, and 1-3 do not match the end of file4. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file3" >> "$seqres.full" +_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file4" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +C1="$(_md5_checksum $TESTDIR/file1)" +C2="$(_md5_checksum $TESTDIR/file2)" +C3="$(_md5_checksum $TESTDIR/file3)" +C4="$(_md5_checksum $TESTDIR/file4)" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "Reflink the last blocks together, 1-2 1-3" +_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 >> "$seqres.full" +_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +C1="$(_md5_checksum $TESTDIR/file1)" +C2="$(_md5_checksum $TESTDIR/file2)" +C3="$(_md5_checksum $TESTDIR/file3)" +C4="$(_md5_checksum $TESTDIR/file4)" + +echo "Compare files" +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" != "${C4}" || echo "file3 and file4 should match" + +echo "Compare sections" +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 \ + || echo "End sections of files 1-2 do not match" + +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \ + || echo "End sections of files 1-3 do not match" + +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \ + || echo "End sections of files 1-4 do not match (intentional)" + +_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \ + || echo "End sections of files 2-3 do not match" + +_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \ + || echo "End sections of files 2-4 do not match (intentional)" + +_compare_range "$TESTDIR/file3" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \ + || echo "End sections of files 3-4 do not match (intentional)" + +# success, all done +status=0 +exit diff --git a/tests/generic/817.out b/tests/generic/817.out new file mode 100644 index 0000000..dd6b1ee --- /dev/null +++ b/tests/generic/817.out @@ -0,0 +1,16 @@ +QA output created by 817 +Create the original files +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-817/file1 +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-817/file2 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-817/file3 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-817/file4 +Reflink the last blocks together, 1-2 1-3 +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-817/file1 +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-817/file2 +e236f2fe789f0aa34b50e981a2f0243a TEST_DIR/test-817/file3 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-817/file4 +Compare files +Compare sections +End sections of files 1-4 do not match (intentional) +End sections of files 2-4 do not match (intentional) +End sections of files 3-4 do not match (intentional) diff --git a/tests/generic/818 b/tests/generic/818 new file mode 100755 index 0000000..fba097d --- /dev/null +++ b/tests/generic/818 @@ -0,0 +1,128 @@ +#! /bin/bash +# FS QA Test No. 818 +# +# Ensure that we can dedupe the last block of a file whose size isn't +# block-aligned. +# - Create two 'a' files file whose size isn't block-aligned. +# - Create two 'b' files file whose size isn't block-aligned. +# - Dedupe the last block of file1 to the last block in file2 and file3. +# - Check that files 1-2 match, and that 3-4 match. +# - Check that the ends of 1-2 and 3-4 match, and that 1-3 don't match. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_dedupe + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file3" >> "$seqres.full" +_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file4" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +C1="$(_md5_checksum $TESTDIR/file1)" +C2="$(_md5_checksum $TESTDIR/file2)" +C3="$(_md5_checksum $TESTDIR/file3)" +C4="$(_md5_checksum $TESTDIR/file4)" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "Dedupe the last blocks together" +_dedupe_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 >> "$seqres.full" +_dedupe_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +C1="$(_md5_checksum $TESTDIR/file1)" +C2="$(_md5_checksum $TESTDIR/file2)" +C3="$(_md5_checksum $TESTDIR/file3)" +C4="$(_md5_checksum $TESTDIR/file4)" + +echo "Compare files" +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "Compare sections" +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 \ + || echo "End sections of files 1-2 do not match" + +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \ + || echo "End sections of files 1-3 do not match (intentional)" + +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \ + || echo "End sections of files 1-4 do not match (intentional)" + +_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \ + || echo "End sections of files 2-3 do not match (intentional)" + +_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \ + || echo "End sections of files 2-4 do not match (intentional)" + +_compare_range "$TESTDIR/file3" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \ + || echo "End sections of files 3-4 do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/818.out b/tests/generic/818.out new file mode 100644 index 0000000..f7e30bf --- /dev/null +++ b/tests/generic/818.out @@ -0,0 +1,17 @@ +QA output created by 818 +Create the original files +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-818/file1 +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-818/file2 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-818/file3 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-818/file4 +Dedupe the last blocks together +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-818/file1 +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-818/file2 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-818/file3 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-818/file4 +Compare files +Compare sections +End sections of files 1-3 do not match (intentional) +End sections of files 1-4 do not match (intentional) +End sections of files 2-3 do not match (intentional) +End sections of files 2-4 do not match (intentional) diff --git a/tests/generic/819 b/tests/generic/819 new file mode 100755 index 0000000..918868a --- /dev/null +++ b/tests/generic/819 @@ -0,0 +1,131 @@ +#! /bin/bash +# FS QA Test No. 819 +# +# Ensure that we can reflink and dedupe blocks within the same file... +# - Create a file with three distinct blocks ABB +# - Reflink block zero to the multiple-of-three blocks +# - Reflink block one to the multiple-of-five blocks +# - Dedupe block two to the multiple-of-seven blocks +# - Check that we successfully avoid deduping with holes, unwritten +# extents, and non-matches; but actually dedupe real matches. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_test_dedupe +_require_xfs_io_command "falloc" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ=65536 +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $((BLKSZ * 2)) "$TESTDIR/file1" >> "$seqres.full" + +NR_BLKS=1024 + +echo "fallocate half the file" +"$XFS_IO_PROG" -f -c "falloc $((NR_BLKS * BLKSZ / 2)) $((NR_BLKS * BLKSZ / 2))" "$TESTDIR/file1" >> "$seqres.full" + +echo "Reflink block zero to the threes" +seq 1 $((NR_BLKS / 3)) | while read nr; do + _reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file1" $((nr * 3 * BLKSZ)) \ + $BLKSZ >> "$seqres.full" +done + +echo "Reflink block one to the fives" +seq 1 $((NR_BLKS / 5)) | while read nr; do + _reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file1" \ + $((nr * 5 * BLKSZ)) $BLKSZ >> "$seqres.full" +done + +echo "Dedupe block two to the sevens" +seq 1 $((NR_BLKS / 7)) | while read nr; do + _dedupe_range "$TESTDIR/file1" $((BLKSZ * 2)) "$TESTDIR/file1" \ + $((nr * 7 * BLKSZ)) $BLKSZ >> "$seqres.full" +done + +_test_remount + +echo "Check block mappings" +md5sum "$TESTDIR/file1" | _filter_test_dir + +crcZ=$(_md5_range_checksum /dev/zero 0 $BLKSZ) +crc0=$(_md5_range_checksum "$TESTDIR/file1" 0 $BLKSZ) +crc1=$(_md5_range_checksum "$TESTDIR/file1" $BLKSZ $BLKSZ) +crc2=$(_md5_range_checksum "$TESTDIR/file1" $((BLKSZ * 2)) $BLKSZ) + +check_block() { + lblk="$1" + rem7=$((lblk % 7)) + rem5=$((lblk % 5)) + rem3=$((lblk % 3)) + + crc=$(_md5_range_checksum "$TESTDIR/file1" $((lblk * BLKSZ)) $BLKSZ) + + if [ $rem7 -eq 0 ]; then + if [ $rem5 -eq 0 ]; then + test $crc2 = $crc || echo "lblk $lblk doesn't match block 2" + elif [ $rem3 -eq 0 ]; then + test $crc0 = $crc || echo "lblk $lblk doesn't match block 0" + elif [ $lblk -lt $((NR_BLKS / 2)) ]; then + test $crcZ = $crc || echo "lblk $lblk isn't zeroed" + fi + elif [ $rem5 -eq 0 ]; then + test $crc1 = $crc || echo "lblk $lblk doesn't match block 1" + elif [ $rem3 -eq 0 ]; then + test $crc0 = $crc || echo "lblk $lblk doesn't match block 0" + elif [ $lblk -lt $((NR_BLKS / 2)) ]; then + test $crcZ = $crc || echo "lblk $lblk isn't zeroed" + fi +} + +seq 3 $((NR_BLKS - 1)) | while read lblk; do + err="$(check_block $lblk)" + test -n "$err" && echo "$lblk: $err" +done + +# success, all done +status=0 +exit diff --git a/tests/generic/819.out b/tests/generic/819.out new file mode 100644 index 0000000..203275d --- /dev/null +++ b/tests/generic/819.out @@ -0,0 +1,8 @@ +QA output created by 819 +Create the original file blocks +fallocate half the file +Reflink block zero to the threes +Reflink block one to the fives +Dedupe block two to the sevens +Check block mappings +2ea37912bdbd71b9ed4734d3141cbe9c TEST_DIR/test-819/file1 diff --git a/tests/generic/group b/tests/generic/group index d9421c5..7f25037 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -211,3 +211,11 @@ 800 auto quick clone 801 auto quick clone 802 auto quick clone +803 auto quick clone +804 auto quick clone +805 auto quick clone +806 auto quick clone +807 auto quick clone +817 auto quick clone +818 auto quick clone +819 auto quick clone From darrick.wong@oracle.com Wed Nov 11 13:27:31 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BABDC29E2A for ; Wed, 11 Nov 2015 13:27:31 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id AC8B28F8035 for ; Wed, 11 Nov 2015 11:27:31 -0800 (PST) X-ASG-Debug-ID: 1447270047-04cbb0242512cdd0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id gKbeAkjaQ6E9jwMs (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:27:27 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJR2w0030477 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:27:02 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJR1N8029105 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:27:02 GMT Received: from abhmp0008.oracle.com (abhmp0008.oracle.com [141.146.116.14]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJR1nh019850; Wed, 11 Nov 2015 19:27:01 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:26:57 -0800 Subject: [PATCH 04/11] reflink: test CoW behaviors of reflinked files From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 04/11] reflink: test CoW behaviors of reflinked files To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Wed, 11 Nov 2015 11:26:56 -0800 Message-ID: <20151111192656.15056.46709.stgit@birch.djwong.org> In-Reply-To: <20151111192628.15056.6451.stgit@birch.djwong.org> References: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447270047 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Ensure that CoW happens correctly with buffered, directio, and mmap writes. Signed-off-by: Darrick J. Wong --- tests/generic/808 | 152 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/808.out | 19 ++++++ tests/generic/809 | 151 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/809.out | 19 ++++++ tests/generic/810 | 152 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/810.out | 19 ++++++ tests/generic/837 | 91 +++++++++++++++++++++++++++++ tests/generic/837.out | 8 +++ tests/generic/838 | 91 +++++++++++++++++++++++++++++ tests/generic/838.out | 8 +++ tests/generic/group | 5 ++ 11 files changed, 715 insertions(+) create mode 100755 tests/generic/808 create mode 100644 tests/generic/808.out create mode 100755 tests/generic/809 create mode 100644 tests/generic/809.out create mode 100755 tests/generic/810 create mode 100644 tests/generic/810.out create mode 100755 tests/generic/837 create mode 100644 tests/generic/837.out create mode 100755 tests/generic/838 create mode 100644 tests/generic/838.out diff --git a/tests/generic/808 b/tests/generic/808 new file mode 100755 index 0000000..3a3ec58 --- /dev/null +++ b/tests/generic/808 @@ -0,0 +1,152 @@ +#! /bin/bash +# FS QA Test No. 808 +# +# Ensuring that copy on write through the page cache works: +# - Reflink two files together +# - Write to the beginning, middle, and end +# - Check that the files are now different where we say they're different. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ * 48 - 3)) "$TESTDIR/file1" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x61 0 $((BLKSZ * 48 - 3)) "$TESTDIR/file3" >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir + +cmp -s "$TESTDIR/file1" "$TESTDIR/file2" || echo "Files 1-2 do not match" +cmp -s "$TESTDIR/file1" "$TESTDIR/file3" || echo "Files 1-3 do not match" +cmp -s "$TESTDIR/file2" "$TESTDIR/file3" || echo "Files 2-3 do not match" + +echo "pagecache CoW the second file" +_pwrite_byte 0x62 0 17 "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x62 0 17 "$TESTDIR/file3" >> "$seqres.full" + +_pwrite_byte 0x62 $((BLKSZ * 16 - 34)) 17 "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 16 - 34)) 17 "$TESTDIR/file3" >> "$seqres.full" + +_pwrite_byte 0x62 $((BLKSZ * 48 - 8)) 17 "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 48 - 8)) 17 "$TESTDIR/file3" >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir + +cmp -s "$TESTDIR/file1" "$TESTDIR/file2" || echo "Files 1-2 do not match (intentional)" +cmp -s "$TESTDIR/file1" "$TESTDIR/file3" || echo "Files 1-3 do not match (intentional)" +cmp -s "$TESTDIR/file2" "$TESTDIR/file3" || echo "Files 2-3 do not match" + +echo "Compare the CoW'd section to the before file" +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 17 \ + || echo "Start sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16 - 34)) \ + "$TESTDIR/file2" $((BLKSZ * 16 - 34)) 17 \ + || echo "Middle sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 48 - 8)) \ + "$TESTDIR/file2" $((BLKSZ * 48 - 8)) 17 \ + || echo "End sections do not match (intentional)" + +echo "Compare the CoW'd section to the after file" +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file3" 0 17 \ + || echo "Start sections do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16 - 34)) \ + "$TESTDIR/file3" $((BLKSZ * 16 - 34)) 17 \ + || echo "Middle sections do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 48 - 8)) \ + "$TESTDIR/file3" $((BLKSZ * 48 - 8)) 17 \ + || echo "End sections do not match" + +echo "Compare the not CoW'd sections" +_compare_range "$TESTDIR/file1" 18 "$TESTDIR/file2" 18 17 \ + || echo "Start sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" 18 "$TESTDIR/file3" 18 17 \ + || echo "Start sections of 2-3 do not match" + + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16 - 17)) \ + "$TESTDIR/file2" $((BLKSZ * 16 - 17)) 82 \ + || echo "Middle sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16 - 17)) \ + "$TESTDIR/file3" $((BLKSZ * 16 - 17)) 82 \ + || echo "Middle sections of 2-3 do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 48 - 108)) \ + "$TESTDIR/file2" $((BLKSZ * 48 - 108)) 100 \ + || echo "End sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 48 - 108)) \ + "$TESTDIR/file3" $((BLKSZ * 48 - 108)) 100 \ + || echo "End sections of 2-3 do not match" + + +_compare_range "$TESTDIR/file1" $((BLKSZ * 14)) \ + "$TESTDIR/file2" $((BLKSZ * 14)) $BLKSZ \ + || echo "Untouched sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 14)) \ + "$TESTDIR/file3" $((BLKSZ * 14)) $BLKSZ \ + || echo "Untouched sections of 2-3 do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/808.out b/tests/generic/808.out new file mode 100644 index 0000000..1e82e2d --- /dev/null +++ b/tests/generic/808.out @@ -0,0 +1,19 @@ +QA output created by 808 +Create the original files +Compare files +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-808/file1 +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-808/file2 +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-808/file3 +pagecache CoW the second file +Compare files +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-808/file1 +4a879c2f322121f6f4b8ebede1909a7c TEST_DIR/test-808/file2 +4a879c2f322121f6f4b8ebede1909a7c TEST_DIR/test-808/file3 +Files 1-2 do not match (intentional) +Files 1-3 do not match (intentional) +Compare the CoW'd section to the before file +Start sections do not match (intentional) +Middle sections do not match (intentional) +End sections do not match (intentional) +Compare the CoW'd section to the after file +Compare the not CoW'd sections diff --git a/tests/generic/809 b/tests/generic/809 new file mode 100755 index 0000000..99e88f6 --- /dev/null +++ b/tests/generic/809 @@ -0,0 +1,151 @@ +#! /bin/bash +# FS QA Test No. 809 +# +# Ensuring that copy on write in direct-io mode works: +# - Reflink two files together +# - Write to the beginning, middle, and end in direct-io mode +# - Check that the files are now different where we say they're different. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR=$TEST_DIR/test-$seq +rm -rf $TESTDIR +mkdir $TESTDIR + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ * 48 - 3)) "$TESTDIR/file1" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x61 0 $((BLKSZ * 48 - 3)) "$TESTDIR/file3" >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir + +cmp -s "$TESTDIR/file1" "$TESTDIR/file2" || echo "Files 1-2 should match" +cmp -s "$TESTDIR/file1" "$TESTDIR/file3" || echo "Files 1-3 should match" +cmp -s "$TESTDIR/file2" "$TESTDIR/file3" || echo "Files 2-3 should match" + +echo "directio CoW the second file" +_pwrite_byte 0x62 0 $BLKSZ "$TESTDIR/file2" -d >> "$seqres.full" +_pwrite_byte 0x62 0 $BLKSZ "$TESTDIR/file3" -d >> "$seqres.full" + +_pwrite_byte 0x62 $((BLKSZ * 16 - 512)) 512 "$TESTDIR/file2" -d >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 16 - 512)) 512 "$TESTDIR/file3" -d >> "$seqres.full" + +_pwrite_byte 0x62 $((BLKSZ * 48)) $BLKSZ "$TESTDIR/file2" -d >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 48)) $BLKSZ "$TESTDIR/file3" -d >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir + +cmp -s "$TESTDIR/file1" "$TESTDIR/file2" || echo "Files 1-2 should not match (intentional)" +cmp -s "$TESTDIR/file1" "$TESTDIR/file3" || echo "Files 1-3 should not match (intentional)" +cmp -s "$TESTDIR/file2" "$TESTDIR/file3" || echo "Files 2-3 should match" + +echo "Compare the CoW'd section to the before file" +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $BLKSZ \ + || echo "Start sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16 - 512)) \ + "$TESTDIR/file2" $((BLKSZ * 16 - 512)) 512 \ + || echo "Middle sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 48 - 512)) \ + "$TESTDIR/file2" $((BLKSZ * 48 - 512)) $BLKSZ \ + || echo "End sections do not match (intentional)" + +echo "Compare the CoW'd section to the after file" +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file3" 0 $BLKSZ \ + || echo "Start sections do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16 - 512)) \ + "$TESTDIR/file3" $((BLKSZ * 16 - 512)) 512 \ + || echo "Middle sections do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 48 - 512)) \ + "$TESTDIR/file3" $((BLKSZ * 48 - 512)) $BLKSZ \ + || echo "End sections do not match" + +echo "Compare the not CoW'd sections" +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 512 \ + || echo "Start sections of 1-2 do not match" +_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file3" $BLKSZ 512 \ + || echo "Start sections of 2-3 do not match" + + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16 - 1024)) \ + "$TESTDIR/file2" $((BLKSZ * 16 - 1024)) 512 \ + || echo "Middle sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16 - 1024)) \ + "$TESTDIR/file3" $((BLKSZ * 16 - 1024)) 512 \ + || echo "Middle sections of 2-3 do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 48 - 1024)) \ + "$TESTDIR/file2" $((BLKSZ * 48 - 1024)) 512 \ + || echo "End sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 48 - 1024)) \ + "$TESTDIR/file3" $((BLKSZ * 48 - 1024)) 512 \ + || echo "End sections of 2-3 do not match" + + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16)) \ + "$TESTDIR/file2" $((BLKSZ * 16)) 512 \ + || echo "Untouched sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16)) \ + "$TESTDIR/file3" $((BLKSZ * 16)) 512 \ + || echo "Untouched sections of 2-3 do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/809.out b/tests/generic/809.out new file mode 100644 index 0000000..ad63e4e --- /dev/null +++ b/tests/generic/809.out @@ -0,0 +1,19 @@ +QA output created by 809 +Create the original files +Compare files +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-809/file1 +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-809/file2 +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-809/file3 +directio CoW the second file +Compare files +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-809/file1 +ff5626fb6c71b242d6b1a43de25c9a85 TEST_DIR/test-809/file2 +ff5626fb6c71b242d6b1a43de25c9a85 TEST_DIR/test-809/file3 +Files 1-2 should not match (intentional) +Files 1-3 should not match (intentional) +Compare the CoW'd section to the before file +Start sections do not match (intentional) +Middle sections do not match (intentional) +End sections do not match (intentional) +Compare the CoW'd section to the after file +Compare the not CoW'd sections diff --git a/tests/generic/810 b/tests/generic/810 new file mode 100755 index 0000000..3b635f8 --- /dev/null +++ b/tests/generic/810 @@ -0,0 +1,152 @@ +#! /bin/bash +# FS QA Test No. 810 +# +# Ensuring that mmap copy on write through the page cache works: +# - Reflink two files together +# - Write to the beginning, middle, and end +# - Check that the files are now different where we say they're different. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ * 48 - 3)) "$TESTDIR/file1" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x61 0 $((BLKSZ * 48 - 3)) "$TESTDIR/file3" >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir + +cmp -s "$TESTDIR/file1" "$TESTDIR/file2" || echo "Files 1-2 do not match" +cmp -s "$TESTDIR/file1" "$TESTDIR/file3" || echo "Files 1-3 do not match" +cmp -s "$TESTDIR/file2" "$TESTDIR/file3" || echo "Files 2-3 do not match" + +echo "mmap CoW the second file" +_mwrite_byte 0x62 0 17 $((BLKSZ * 48 - 3)) "$TESTDIR/file2" >> "$seqres.full" +_mwrite_byte 0x62 0 17 $((BLKSZ * 48 - 3)) "$TESTDIR/file3" >> "$seqres.full" + +_mwrite_byte 0x62 $((BLKSZ * 16 - 34)) 17 $((BLKSZ * 48 - 3)) "$TESTDIR/file2" >> "$seqres.full" +_mwrite_byte 0x62 $((BLKSZ * 16 - 34)) 17 $((BLKSZ * 48 - 3)) "$TESTDIR/file3" >> "$seqres.full" + +_mwrite_byte 0x62 $((BLKSZ * 48 - 20)) 17 $((BLKSZ * 48 - 3)) "$TESTDIR/file2" >> "$seqres.full" +_mwrite_byte 0x62 $((BLKSZ * 48 - 20)) 17 $((BLKSZ * 48 - 3)) "$TESTDIR/file3" >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir + +cmp -s "$TESTDIR/file1" "$TESTDIR/file2" || echo "Files 1-2 do not match (intentional)" +cmp -s "$TESTDIR/file1" "$TESTDIR/file3" || echo "Files 1-3 do not match (intentional)" +cmp -s "$TESTDIR/file2" "$TESTDIR/file3" || echo "Files 2-3 do not match" + +echo "Compare the CoW'd section to the before file" +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 17 \ + || echo "Start sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16 - 34)) \ + "$TESTDIR/file2" $((BLKSZ * 16 - 34)) 17 \ + || echo "Middle sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 48 - 20)) \ + "$TESTDIR/file2" $((BLKSZ * 48 - 20)) 17 \ + || echo "End sections do not match (intentional)" + +echo "Compare the CoW'd section to the after file" +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file3" 0 17 \ + || echo "Start sections do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16 - 34)) \ + "$TESTDIR/file3" $((BLKSZ * 16 - 34)) 17 \ + || echo "Middle sections do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 48 - 20)) \ + "$TESTDIR/file3" $((BLKSZ * 48 - 20)) 17 \ + || echo "End sections do not match" + +echo "Compare the not CoW'd sections" +_compare_range "$TESTDIR/file1" 18 "$TESTDIR/file2" 18 17 \ + || echo "Start sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" 18 "$TESTDIR/file3" 18 17 \ + || echo "Start sections of 2-3 do not match" + + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16 - 17)) \ + "$TESTDIR/file2" $((BLKSZ * 16 - 17)) 82 \ + || echo "Middle sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16 - 17)) \ + "$TESTDIR/file3" $((BLKSZ * 16 - 17)) 82 \ + || echo "Middle sections of 2-3 do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 48 - 120)) \ + "$TESTDIR/file2" $((BLKSZ * 48 - 120)) 100 \ + || echo "End sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 48 - 120)) \ + "$TESTDIR/file3" $((BLKSZ * 48 - 120)) 100 \ + || echo "End sections of 2-3 do not match" + + +_compare_range "$TESTDIR/file1" $((BLKSZ * 14)) \ + "$TESTDIR/file2" $((BLKSZ * 14)) $BLKSZ \ + || echo "Untouched sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 14)) \ + "$TESTDIR/file3" $((BLKSZ * 14)) $BLKSZ \ + || echo "Untouched sections of 2-3 do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/810.out b/tests/generic/810.out new file mode 100644 index 0000000..8cc94ab --- /dev/null +++ b/tests/generic/810.out @@ -0,0 +1,19 @@ +QA output created by 810 +Create the original files +Compare files +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-810/file1 +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-810/file2 +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-810/file3 +mmap CoW the second file +Compare files +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-810/file1 +795ecfd281dbda4916431376228e4187 TEST_DIR/test-810/file2 +795ecfd281dbda4916431376228e4187 TEST_DIR/test-810/file3 +Files 1-2 do not match (intentional) +Files 1-3 do not match (intentional) +Compare the CoW'd section to the before file +Start sections do not match (intentional) +Middle sections do not match (intentional) +End sections do not match (intentional) +Compare the CoW'd section to the after file +Compare the not CoW'd sections diff --git a/tests/generic/837 b/tests/generic/837 new file mode 100755 index 0000000..de5f233 --- /dev/null +++ b/tests/generic/837 @@ -0,0 +1,91 @@ +#! /bin/bash +# FS QA Test No. 837 +# +# Ensure that reflinking a file N times and CoWing the copies leaves the +# original intact. +# - Create a file and record its hash +# - Create some reflink copies +# - Rewrite all the reflink copies +# - Compare the contents of the original file +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ=65536 +NR=9 +_pwrite_byte 0x61 0 $((BLKSZ * 256)) "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +csum="$(_md5_checksum "$TESTDIR/file1")" + +echo "Create the reflink copies" +seq 2 $NR | while read i; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount + +echo "Rewrite the copies" +seq 2 $NR | while read i; do + _pwrite_byte 0x62 0 $((BLKSZ * 256)) "$TESTDIR/file$i" >> "$seqres.full" +done +_test_remount + +echo "Examine original file" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +mod_csum="$(_md5_checksum "$TESTDIR/file2")" +new_csum="$(_md5_checksum "$TESTDIR/file1")" +test "${csum}" != "${mod_csum}" || echo "checksums do not match" +test "${csum}" = "${new_csum}" || echo "checksums do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/837.out b/tests/generic/837.out new file mode 100644 index 0000000..3f9c2e5 --- /dev/null +++ b/tests/generic/837.out @@ -0,0 +1,8 @@ +QA output created by 837 +Create the original file blocks +f4820540fc0ac02750739896fe028d56 TEST_DIR/test-837/file1 +Create the reflink copies +Rewrite the copies +Examine original file +f4820540fc0ac02750739896fe028d56 TEST_DIR/test-837/file1 +eb34153e9ed1e774db28cbbe4090a449 TEST_DIR/test-837/file2 diff --git a/tests/generic/838 b/tests/generic/838 new file mode 100755 index 0000000..1130a2c --- /dev/null +++ b/tests/generic/838 @@ -0,0 +1,91 @@ +#! /bin/bash +# FS QA Test No. 838 +# +# Ensure that reflinking a file N times and DIO CoWing the copies leaves the +# original intact. +# - Create a file and record its hash +# - Create some reflink copies +# - Rewrite all the reflink copies w/ directio +# - Compare the contents of the original file +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ=65536 +NR=9 +_pwrite_byte 0x61 0 $((BLKSZ * 256)) "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +csum="$(_md5_checksum "$TESTDIR/file1")" + +echo "Create the reflink copies" +seq 2 $NR | while read i; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount + +echo "Rewrite the copies" +seq 2 $NR | while read i; do + _pwrite_byte 0x62 0 $((BLKSZ * 256)) "$TESTDIR/file$i" -d >> "$seqres.full" +done +_test_remount + +echo "Examine original file" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +mod_csum="$(_md5_checksum "$TESTDIR/file2")" +new_csum="$(_md5_checksum "$TESTDIR/file1")" +test "${csum}" != "${mod_csum}" || echo "checksums do not match" +test "${csum}" = "${new_csum}" || echo "checksums do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/838.out b/tests/generic/838.out new file mode 100644 index 0000000..cc44815 --- /dev/null +++ b/tests/generic/838.out @@ -0,0 +1,8 @@ +QA output created by 838 +Create the original file blocks +f4820540fc0ac02750739896fe028d56 TEST_DIR/test-838/file1 +Create the reflink copies +Rewrite the copies +Examine original file +f4820540fc0ac02750739896fe028d56 TEST_DIR/test-838/file1 +eb34153e9ed1e774db28cbbe4090a449 TEST_DIR/test-838/file2 diff --git a/tests/generic/group b/tests/generic/group index 7f25037..a72d416 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -216,6 +216,11 @@ 805 auto quick clone 806 auto quick clone 807 auto quick clone +808 auto quick clone +809 auto quick clone +810 auto quick clone 817 auto quick clone 818 auto quick clone 819 auto quick clone +837 auto quick clone +838 auto quick clone From darrick.wong@oracle.com Wed Nov 11 13:27:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 4A1C47F63 for ; Wed, 11 Nov 2015 13:27:33 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2C87E304043 for ; Wed, 11 Nov 2015 11:27:33 -0800 (PST) X-ASG-Debug-ID: 1447270048-04cb6c296a125180001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id SlEklS3EWFDkLaID (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:27:28 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJR506030561 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:27:06 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJR50H023590 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:27:05 GMT Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJR5tU002085; Wed, 11 Nov 2015 19:27:05 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:27:04 -0800 Subject: [PATCH 05/11] reflink: test the various fallocate modes From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 05/11] reflink: test the various fallocate modes To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Wed, 11 Nov 2015 11:27:03 -0800 Message-ID: <20151111192703.15056.62918.stgit@birch.djwong.org> In-Reply-To: <20151111192628.15056.6451.stgit@birch.djwong.org> References: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447270048 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Check that the variants of fallocate (allocate, punch, zero range, collapse range, insert range) do the right thing when they're run against a range of reflinked blocks. Signed-off-by: Darrick J. Wong --- tests/generic/811 | 142 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/811.out | 16 ++++++ tests/generic/812 | 142 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/812.out | 19 +++++++ tests/generic/813 | 136 +++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/813.out | 19 +++++++ tests/generic/814 | 139 ++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/814.out | 19 +++++++ tests/generic/815 | 116 ++++++++++++++++++++++++++++++++++++++++ tests/generic/815.out | 15 +++++ tests/generic/816 | 136 +++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/816.out | 19 +++++++ tests/generic/group | 6 ++ 13 files changed, 924 insertions(+) create mode 100755 tests/generic/811 create mode 100644 tests/generic/811.out create mode 100755 tests/generic/812 create mode 100644 tests/generic/812.out create mode 100755 tests/generic/813 create mode 100644 tests/generic/813.out create mode 100755 tests/generic/814 create mode 100644 tests/generic/814.out create mode 100755 tests/generic/815 create mode 100644 tests/generic/815.out create mode 100755 tests/generic/816 create mode 100644 tests/generic/816.out diff --git a/tests/generic/811 b/tests/generic/811 new file mode 100755 index 0000000..7b09c05 --- /dev/null +++ b/tests/generic/811 @@ -0,0 +1,142 @@ +#! /bin/bash +# FS QA Test No. 811 +# +# Ensure that fallocate steps around reflinked ranges: +# - Reflink parts of two files together +# - Fallocate all the other sparse space. +# - Check that the reflinked areas are still there. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "falloc" +_require_xfs_io_command "truncate" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ * 5 + 37)) "$TESTDIR/file1" >> "$seqres.full" + +_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ \ + $((BLKSZ * 4 + 37)) >> "$seqres.full" + +"$XFS_IO_PROG" -f -c "truncate $((BLKSZ * 5 + 37))" "$TESTDIR/file3" >> "$seqres.full" +_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $BLKSZ >> "$seqres.full" + +"$XFS_IO_PROG" -f -c "truncate $((BLKSZ * 5 + 37))" "$TESTDIR/file4" >> "$seqres.full" +_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ $BLKSZ >> "$seqres.full" +_reflink_range "$TESTDIR/file1" $((BLKSZ * 3)) "$TESTDIR/file4" $((BLKSZ * 3)) \ + $BLKSZ >> "$seqres.full" + +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file5" +_test_remount + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file5" | _filter_test_dir + +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ \ + $((BLKSZ * 4 + 37)) \ + || echo "shared parts of files 1-2 changed" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $BLKSZ \ + || echo "shared parts of files 1-3 changed" + +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ $BLKSZ \ + || echo "shared parts of files 1-4 changed" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file5" 0 $((BLKSZ * 5 + 37)) \ + || echo "shared parts of files 1-5 changed" + +echo "Compare files" +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" +C5="$(_md5_checksum "$TESTDIR/file5")" + +test "${C1}" != "${C2}" || echo "file1 and file2 should not match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C1}" = "${C5}" || echo "file1 and file5 should match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C2}" != "${C5}" || echo "file2 and file5 should not match" +test "${C3}" != "${C4}" || echo "file3 and file4 should not match" +test "${C3}" != "${C5}" || echo "file3 and file5 should not match" +test "${C4}" != "${C5}" || echo "file4 and file5 should not match" + +echo "falloc everything" +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 5))" "$TESTDIR/file2" >> "$seqres.full" +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 5))" "$TESTDIR/file3" >> "$seqres.full" +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 5))" "$TESTDIR/file4" >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file5" | _filter_test_dir + +D1="$(_md5_checksum "$TESTDIR/file1")" +D2="$(_md5_checksum "$TESTDIR/file2")" +D3="$(_md5_checksum "$TESTDIR/file3")" +D4="$(_md5_checksum "$TESTDIR/file4")" +D5="$(_md5_checksum "$TESTDIR/file5")" + +test "${C1}" = "${D1}" || echo "file1 should not change" +test "${C2}" = "${D2}" || echo "file2 should not change" +test "${C3}" = "${D3}" || echo "file3 should not change" +test "${C4}" = "${D4}" || echo "file4 should not change" +test "${C5}" = "${D5}" || echo "file2 should not change" + +# success, all done +status=0 +exit diff --git a/tests/generic/811.out b/tests/generic/811.out new file mode 100644 index 0000000..950613a --- /dev/null +++ b/tests/generic/811.out @@ -0,0 +1,16 @@ +QA output created by 811 +Create the original files +Compare sections +ee8004e6298fa128477bd4aa1adc69fb TEST_DIR/test-811/file1 +a7cb8cb9697d59413e0d10495d226398 TEST_DIR/test-811/file2 +7d42a0a2865c94f45435a2ce7627da02 TEST_DIR/test-811/file3 +7f528bc76f4d61ff9cff7bc1906579c6 TEST_DIR/test-811/file4 +ee8004e6298fa128477bd4aa1adc69fb TEST_DIR/test-811/file5 +Compare files +falloc everything +Compare files +ee8004e6298fa128477bd4aa1adc69fb TEST_DIR/test-811/file1 +a7cb8cb9697d59413e0d10495d226398 TEST_DIR/test-811/file2 +7d42a0a2865c94f45435a2ce7627da02 TEST_DIR/test-811/file3 +7f528bc76f4d61ff9cff7bc1906579c6 TEST_DIR/test-811/file4 +ee8004e6298fa128477bd4aa1adc69fb TEST_DIR/test-811/file5 diff --git a/tests/generic/812 b/tests/generic/812 new file mode 100755 index 0000000..0c7647f --- /dev/null +++ b/tests/generic/812 @@ -0,0 +1,142 @@ +#! /bin/bash +# FS QA Test No. 812 +# +# Ensure that collapse range steps around reflinked ranges: +# - Create three reflink clones of a file +# - Collapse the start, middle, and end of the reflink range of each +# of the three files, respectively +# - Check that the reflinked areas are still there. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "falloc" +_require_xfs_io_command "fcollapse" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full" + +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file3" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file4" + +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 4))" "$TESTDIR/file1" +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 4))" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 4))" "$TESTDIR/file3" +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 4))" "$TESTDIR/file4" + +_pwrite_byte 0x62 0 $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x63 $BLKSZ $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x63 $BLKSZ $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" = "${C3}" || echo "file1 and file3 should match" +test "${C1}" = "${C4}" || echo "file1 and file4 should match" +test "${C2}" = "${C3}" || echo "file2 and file3 should match" +test "${C2}" = "${C4}" || echo "file2 and file4 should match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "fcollapse files" +"$XFS_IO_PROG" -f -c "fcollapse 0 $BLKSZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "fcollapse $BLKSZ $BLKSZ" "$TESTDIR/file3" +"$XFS_IO_PROG" -f -c "fcollapse $((BLKSZ * 2)) $BLKSZ" "$TESTDIR/file4" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" != "${C2}" || echo "file1 and file2 should not match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" != "${C4}" || echo "file3 and file4 should not match" + +echo "Compare against check files" +cmp -s "$TESTDIR/file2" "$TESTDIR/file2.chk" || echo "file2 and file2.chk do not match" +cmp -s "$TESTDIR/file3" "$TESTDIR/file3.chk" || echo "file3 and file3.chk do not match" +cmp -s "$TESTDIR/file4" "$TESTDIR/file4.chk" || echo "file4 and file4.chk do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/812.out b/tests/generic/812.out new file mode 100644 index 0000000..16dc3df --- /dev/null +++ b/tests/generic/812.out @@ -0,0 +1,19 @@ +QA output created by 812 +Create the original files +564b34fb4a562f6d864f371248e48540 TEST_DIR/test-812/file1 +564b34fb4a562f6d864f371248e48540 TEST_DIR/test-812/file2 +564b34fb4a562f6d864f371248e48540 TEST_DIR/test-812/file3 +564b34fb4a562f6d864f371248e48540 TEST_DIR/test-812/file4 +9a239246ce4bee20f2de1b0ba41a41e0 TEST_DIR/test-812/file2.chk +859c251680d8bbf0f859f5c6d7a6a2a2 TEST_DIR/test-812/file3.chk +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-812/file4.chk +fcollapse files +Compare files +564b34fb4a562f6d864f371248e48540 TEST_DIR/test-812/file1 +9a239246ce4bee20f2de1b0ba41a41e0 TEST_DIR/test-812/file2 +859c251680d8bbf0f859f5c6d7a6a2a2 TEST_DIR/test-812/file3 +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-812/file4 +9a239246ce4bee20f2de1b0ba41a41e0 TEST_DIR/test-812/file2.chk +859c251680d8bbf0f859f5c6d7a6a2a2 TEST_DIR/test-812/file3.chk +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-812/file4.chk +Compare against check files diff --git a/tests/generic/813 b/tests/generic/813 new file mode 100755 index 0000000..d313bc7 --- /dev/null +++ b/tests/generic/813 @@ -0,0 +1,136 @@ +#! /bin/bash +# FS QA Test No. 813 +# +# Ensure that punch-hole steps around reflinked ranges: +# - Create three reflink clones of a file +# - Punch the start, middle, and end of the reflink range of each +# of the three files, respectively +# - Check that the reflinked areas are still there. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "fpunch" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full" + +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file3" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file4" + +_pwrite_byte 0x00 0 $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x00 $BLKSZ $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" = "${C3}" || echo "file1 and file3 should match" +test "${C1}" = "${C4}" || echo "file1 and file4 should match" +test "${C2}" = "${C3}" || echo "file2 and file3 should match" +test "${C2}" = "${C4}" || echo "file2 and file4 should match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "fpunch files" +"$XFS_IO_PROG" -f -c "fpunch 0 $BLKSZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "fpunch $BLKSZ $BLKSZ" "$TESTDIR/file3" +"$XFS_IO_PROG" -f -c "fpunch $((BLKSZ * 2)) $BLKSZ" "$TESTDIR/file4" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" != "${C2}" || echo "file1 and file2 should not match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" != "${C4}" || echo "file3 and file4 should not match" + +echo "Compare against check files" +cmp -s "$TESTDIR/file2" "$TESTDIR/file2.chk" || echo "file2 and file2.chk do not match" +cmp -s "$TESTDIR/file3" "$TESTDIR/file3.chk" || echo "file3 and file3.chk do not match" +cmp -s "$TESTDIR/file4" "$TESTDIR/file4.chk" || echo "file4 and file4.chk do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/813.out b/tests/generic/813.out new file mode 100644 index 0000000..98fda42 --- /dev/null +++ b/tests/generic/813.out @@ -0,0 +1,19 @@ +QA output created by 813 +Create the original files +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-813/file1 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-813/file2 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-813/file3 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-813/file4 +e263fae701bc40c23a3edb20aad5573e TEST_DIR/test-813/file2.chk +91722d7c8baf83f300a8dc35f1ffcce2 TEST_DIR/test-813/file3.chk +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-813/file4.chk +fpunch files +Compare files +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-813/file1 +e263fae701bc40c23a3edb20aad5573e TEST_DIR/test-813/file2 +91722d7c8baf83f300a8dc35f1ffcce2 TEST_DIR/test-813/file3 +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-813/file4 +e263fae701bc40c23a3edb20aad5573e TEST_DIR/test-813/file2.chk +91722d7c8baf83f300a8dc35f1ffcce2 TEST_DIR/test-813/file3.chk +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-813/file4.chk +Compare against check files diff --git a/tests/generic/814 b/tests/generic/814 new file mode 100755 index 0000000..c35bdd9 --- /dev/null +++ b/tests/generic/814 @@ -0,0 +1,139 @@ +#! /bin/bash +# FS QA Test No. 812 +# +# Ensure that insert range steps around reflinked ranges: +# - Create three reflink clones of a file +# - Insert into the start, middle, and end of the reflink range of each +# of the three files, respectively +# - Check that the reflinked areas are still there. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "finsert" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full" + +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file3" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file4" + +_pwrite_byte 0x00 0 $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x61 $BLKSZ $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 3)) $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x00 $BLKSZ $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 3)) $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 3)) $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" = "${C3}" || echo "file1 and file3 should match" +test "${C1}" = "${C4}" || echo "file1 and file4 should match" +test "${C2}" = "${C3}" || echo "file2 and file3 should match" +test "${C2}" = "${C4}" || echo "file2 and file4 should match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "finsert files" +"$XFS_IO_PROG" -f -c "finsert 0 $BLKSZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "finsert $BLKSZ $BLKSZ" "$TESTDIR/file3" +"$XFS_IO_PROG" -f -c "finsert $((BLKSZ * 2)) $BLKSZ" "$TESTDIR/file4" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" != "${C2}" || echo "file1 and file2 should not match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" != "${C4}" || echo "file3 and file4 should not match" + +echo "Compare against check files" +cmp -s "$TESTDIR/file2" "$TESTDIR/file2.chk" || echo "file2 and file2.chk do not match" +cmp -s "$TESTDIR/file3" "$TESTDIR/file3.chk" || echo "file3 and file3.chk do not match" +cmp -s "$TESTDIR/file4" "$TESTDIR/file4.chk" || echo "file4 and file4.chk do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/814.out b/tests/generic/814.out new file mode 100644 index 0000000..6093561 --- /dev/null +++ b/tests/generic/814.out @@ -0,0 +1,19 @@ +QA output created by 814 +Create the original files +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-814/file1 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-814/file2 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-814/file3 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-814/file4 +2b0921503c9f661b7690ac5b42f01f97 TEST_DIR/test-814/file2.chk +c424badbaad621c331a8ef213b78ac2a TEST_DIR/test-814/file3.chk +33b4940294a1d94bee813907d6105ff7 TEST_DIR/test-814/file4.chk +finsert files +Compare files +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-814/file1 +2b0921503c9f661b7690ac5b42f01f97 TEST_DIR/test-814/file2 +c424badbaad621c331a8ef213b78ac2a TEST_DIR/test-814/file3 +33b4940294a1d94bee813907d6105ff7 TEST_DIR/test-814/file4 +2b0921503c9f661b7690ac5b42f01f97 TEST_DIR/test-814/file2.chk +c424badbaad621c331a8ef213b78ac2a TEST_DIR/test-814/file3.chk +33b4940294a1d94bee813907d6105ff7 TEST_DIR/test-814/file4.chk +Compare against check files diff --git a/tests/generic/815 b/tests/generic/815 new file mode 100755 index 0000000..8d545ee --- /dev/null +++ b/tests/generic/815 @@ -0,0 +1,116 @@ +#! /bin/bash +# FS QA Test No. 815 +# +# Ensure that truncating the last block in a reflinked file CoWs appropriately: +# - Create a file that doesn't end on a block boundary +# - Create two reflink clones of the file +# - Shorten one of the clones with truncate +# - Lengthen the other clone with truncate +# - Check that the reflinked areas are still there. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "truncate" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ 37 "$TESTDIR/file1" >> "$seqres.full" + +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file3" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ 34 "$TESTDIR/file2.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ 37 "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ + 37)) 3 "$TESTDIR/file3.chk" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" = "${C3}" || echo "file1 and file3 should match" +test "${C2}" = "${C3}" || echo "file2 and file3 should match" + +echo "truncate files" +"$XFS_IO_PROG" -f -c "truncate $((BLKSZ + 34))" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "truncate $((BLKSZ + 40))" "$TESTDIR/file3" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" + +test "${C1}" != "${C2}" || echo "file1 and file2 should not match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" + +echo "Compare against check files" +cmp -s "$TESTDIR/file2" "$TESTDIR/file2.chk" || echo "file2 and file2.chk do not match" +cmp -s "$TESTDIR/file3" "$TESTDIR/file3.chk" || echo "file3 and file3.chk do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/815.out b/tests/generic/815.out new file mode 100644 index 0000000..8c36c2d --- /dev/null +++ b/tests/generic/815.out @@ -0,0 +1,15 @@ +QA output created by 815 +Create the original files +f924bdda449af63913cad4357e39301e TEST_DIR/test-815/file1 +f924bdda449af63913cad4357e39301e TEST_DIR/test-815/file2 +f924bdda449af63913cad4357e39301e TEST_DIR/test-815/file3 +16cb529abe447a9f203a3d5eb3433c8b TEST_DIR/test-815/file2.chk +6f042ad39f6c74f4b73936db89baa2e2 TEST_DIR/test-815/file3.chk +truncate files +Compare files +f924bdda449af63913cad4357e39301e TEST_DIR/test-815/file1 +16cb529abe447a9f203a3d5eb3433c8b TEST_DIR/test-815/file2 +6f042ad39f6c74f4b73936db89baa2e2 TEST_DIR/test-815/file3 +16cb529abe447a9f203a3d5eb3433c8b TEST_DIR/test-815/file2.chk +6f042ad39f6c74f4b73936db89baa2e2 TEST_DIR/test-815/file3.chk +Compare against check files diff --git a/tests/generic/816 b/tests/generic/816 new file mode 100755 index 0000000..44b5ae4 --- /dev/null +++ b/tests/generic/816 @@ -0,0 +1,136 @@ +#! /bin/bash +# FS QA Test No. 813 +# +# Ensure that zero-range steps around reflinked ranges: +# - Create three reflink clones of a file +# - Zero-range the start, middle, and end of the reflink range of each +# of the three files, respectively +# - Check that the reflinked areas are still there. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "fzero" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full" + +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file3" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file4" + +_pwrite_byte 0x00 0 $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x00 $BLKSZ $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" = "${C3}" || echo "file1 and file3 should match" +test "${C1}" = "${C4}" || echo "file1 and file4 should match" +test "${C2}" = "${C3}" || echo "file2 and file3 should match" +test "${C2}" = "${C4}" || echo "file2 and file4 should match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "fzero files" +"$XFS_IO_PROG" -f -c "fzero 0 $BLKSZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "fzero $BLKSZ $BLKSZ" "$TESTDIR/file3" +"$XFS_IO_PROG" -f -c "fzero $((BLKSZ * 2)) $BLKSZ" "$TESTDIR/file4" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" != "${C2}" || echo "file1 and file2 should not match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" != "${C4}" || echo "file3 and file4 should not match" + +echo "Compare against check files" +cmp -s "$TESTDIR/file2" "$TESTDIR/file2.chk" || echo "file2 and file2.chk do not match" +cmp -s "$TESTDIR/file3" "$TESTDIR/file3.chk" || echo "file3 and file3.chk do not match" +cmp -s "$TESTDIR/file4" "$TESTDIR/file4.chk" || echo "file4 and file4.chk do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/816.out b/tests/generic/816.out new file mode 100644 index 0000000..f3e1396 --- /dev/null +++ b/tests/generic/816.out @@ -0,0 +1,19 @@ +QA output created by 816 +Create the original files +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-816/file1 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-816/file2 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-816/file3 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-816/file4 +e263fae701bc40c23a3edb20aad5573e TEST_DIR/test-816/file2.chk +91722d7c8baf83f300a8dc35f1ffcce2 TEST_DIR/test-816/file3.chk +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-816/file4.chk +fzero files +Compare files +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-816/file1 +e263fae701bc40c23a3edb20aad5573e TEST_DIR/test-816/file2 +91722d7c8baf83f300a8dc35f1ffcce2 TEST_DIR/test-816/file3 +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-816/file4 +e263fae701bc40c23a3edb20aad5573e TEST_DIR/test-816/file2.chk +91722d7c8baf83f300a8dc35f1ffcce2 TEST_DIR/test-816/file3.chk +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-816/file4.chk +Compare against check files diff --git a/tests/generic/group b/tests/generic/group index a72d416..58c68c8 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -219,6 +219,12 @@ 808 auto quick clone 809 auto quick clone 810 auto quick clone +811 auto quick clone +812 auto quick clone +813 auto quick clone +814 auto quick clone +815 auto quick clone +816 auto quick clone 817 auto quick clone 818 auto quick clone 819 auto quick clone From darrick.wong@oracle.com Wed Nov 11 13:27:43 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D13F029E1F for ; Wed, 11 Nov 2015 13:27:43 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id C37D1304043 for ; Wed, 11 Nov 2015 11:27:43 -0800 (PST) X-ASG-Debug-ID: 1447270058-04cb6c296b1251a0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id 8JUkEROesRXkJgS3 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:27:39 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJRCxh029333 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:27:12 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJRCjZ029581 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:27:12 GMT Received: from abhmp0007.oracle.com (abhmp0007.oracle.com [141.146.116.13]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tABJRCxr015961; Wed, 11 Nov 2015 19:27:12 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:27:11 -0800 Subject: [PATCH 06/11] reflink: concurrent operations tests From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 06/11] reflink: concurrent operations tests To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Wed, 11 Nov 2015 11:27:10 -0800 Message-ID: <20151111192710.15056.50137.stgit@birch.djwong.org> In-Reply-To: <20151111192628.15056.6451.stgit@birch.djwong.org> References: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447270059 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Make sure that running reflink ops while other IO is ongoing doesn't break the filesystem. Signed-off-by: Darrick J. Wong --- tests/generic/821 | 97 +++++++++++++++++++++++++++++++++++++++++++++ tests/generic/821.out | 6 +++ tests/generic/822 | 97 +++++++++++++++++++++++++++++++++++++++++++++ tests/generic/822.out | 6 +++ tests/generic/823 | 93 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/823.out | 6 +++ tests/generic/824 | 93 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/824.out | 6 +++ tests/generic/825 | 105 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/825.out | 7 +++ tests/generic/826 | 105 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/826.out | 7 +++ tests/generic/827 | 95 ++++++++++++++++++++++++++++++++++++++++++++ tests/generic/827.out | 7 +++ tests/generic/828 | 95 ++++++++++++++++++++++++++++++++++++++++++++ tests/generic/828.out | 7 +++ tests/generic/829 | 79 +++++++++++++++++++++++++++++++++++++ tests/generic/829.out | 6 +++ tests/generic/group | 9 ++++ 19 files changed, 926 insertions(+) create mode 100755 tests/generic/821 create mode 100644 tests/generic/821.out create mode 100755 tests/generic/822 create mode 100644 tests/generic/822.out create mode 100755 tests/generic/823 create mode 100644 tests/generic/823.out create mode 100755 tests/generic/824 create mode 100644 tests/generic/824.out create mode 100755 tests/generic/825 create mode 100644 tests/generic/825.out create mode 100755 tests/generic/826 create mode 100644 tests/generic/826.out create mode 100755 tests/generic/827 create mode 100644 tests/generic/827.out create mode 100755 tests/generic/828 create mode 100644 tests/generic/828.out create mode 100755 tests/generic/829 create mode 100644 tests/generic/829.out diff --git a/tests/generic/821 b/tests/generic/821 new file mode 100755 index 0000000..d38eff7 --- /dev/null +++ b/tests/generic/821 @@ -0,0 +1,97 @@ +#! /bin/bash +# FS QA Test No. 821 +# +# Test for races or FS corruption when DIO writing to a file that's also +# the target of a reflink operation. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=1024 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full" +_scratch_remount + +# Direct I/O overwriter... +overwrite() { + while [ ! -e "$TESTDIR/finished" ]; do + seq $nr_loops -1 0 | while read i; do + _pwrite_byte 0x63 $((i * BLKSZ)) $BLKSZ -d "$TESTDIR/file2" >> "$seqres.full" + done + done +} + +echo "Reflink and dio write the target" +overwrite & +seq 1 10 | while read j; do + seq 0 $nr_loops | while read i; do + _reflink_range "$TESTDIR/file1" $((i * BLKSZ)) \ + "$TESTDIR/file2" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && exit + done +done +touch "$TESTDIR/finished" +wait + +echo "Check for damage" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" + +# success, all done +status=0 +exit diff --git a/tests/generic/821.out b/tests/generic/821.out new file mode 100644 index 0000000..ca6bc53 --- /dev/null +++ b/tests/generic/821.out @@ -0,0 +1,6 @@ +QA output created by 821 +Format and mount +Initialize files +Reflink and dio write the target +Check for damage +Done diff --git a/tests/generic/822 b/tests/generic/822 new file mode 100755 index 0000000..b37207c --- /dev/null +++ b/tests/generic/822 @@ -0,0 +1,97 @@ +#! /bin/bash +# FS QA Test No. 822 +# +# Test for races or FS corruption when writing to a file that's also +# the target of a reflink operation. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=1024 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full" +_scratch_remount + +# Direct I/O overwriter... +overwrite() { + while [ ! -e "$TESTDIR/finished" ]; do + seq $nr_loops -1 0 | while read i; do + _pwrite_byte 0x63 $((i * BLKSZ)) $BLKSZ "$TESTDIR/file2" >> "$seqres.full" + done + done +} + +echo "Reflink and write the target" +overwrite & +seq 1 10 | while read j; do + seq 0 $nr_loops | while read i; do + _reflink_range "$TESTDIR/file1" $((i * BLKSZ)) \ + "$TESTDIR/file2" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && exit + done +done +touch "$TESTDIR/finished" +wait + +echo "Check for damage" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" + +# success, all done +status=0 +exit diff --git a/tests/generic/822.out b/tests/generic/822.out new file mode 100644 index 0000000..14399ae --- /dev/null +++ b/tests/generic/822.out @@ -0,0 +1,6 @@ +QA output created by 822 +Format and mount +Initialize files +Reflink and write the target +Check for damage +Done diff --git a/tests/generic/823 b/tests/generic/823 new file mode 100755 index 0000000..768623d --- /dev/null +++ b/tests/generic/823 @@ -0,0 +1,93 @@ +#! /bin/bash +# FS QA Test No. 823 +# +# Test for races or FS corruption when writing to a file that's also +# the source of a reflink operation. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=1024 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize file" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_scratch_remount + +# Snapshot creator... +snappy() { + n=0 + while [ ! -e "$TESTDIR/finished" ]; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/snap_$n" || break + n=$((n + 1)) + done +} + +echo "Snapshot a file undergoing buffered rewrite" +snappy & +seq $nr_loops -1 0 | while read i; do + _pwrite_byte 0x63 $((i * BLKSZ)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +done +touch $TESTDIR/finished +wait + +echo "Check for damage" +umount $SCRATCH_MNT +_check_scratch_fs + +echo "Done" + +# success, all done +status=0 +exit diff --git a/tests/generic/823.out b/tests/generic/823.out new file mode 100644 index 0000000..ef3e209 --- /dev/null +++ b/tests/generic/823.out @@ -0,0 +1,6 @@ +QA output created by 823 +Format and mount +Initialize file +Snapshot a file undergoing buffered rewrite +Check for damage +Done diff --git a/tests/generic/824 b/tests/generic/824 new file mode 100755 index 0000000..7055d33 --- /dev/null +++ b/tests/generic/824 @@ -0,0 +1,93 @@ +#! /bin/bash +# FS QA Test No. 824 +# +# Test for races or FS corruption when DIO writing to a file that's also +# the source of a reflink operation. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=1024 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize file" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_scratch_remount + +# Snapshot creator... +snappy() { + n=0 + while [ ! -e "$TESTDIR/finished" ]; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/snap_$n" || break + n=$((n + 1)) + done +} + +echo "Snapshot a file undergoing directio rewrite" +snappy & +seq $nr_loops -1 0 | while read i; do + _pwrite_byte 0x63 $((i * BLKSZ)) $BLKSZ -d "$TESTDIR/file1" >> "$seqres.full" +done +touch $TESTDIR/finished +wait + +echo "Check for damage" +umount $SCRATCH_MNT +_check_scratch_fs + +echo "Done" + +# success, all done +status=0 +exit diff --git a/tests/generic/824.out b/tests/generic/824.out new file mode 100644 index 0000000..0376736 --- /dev/null +++ b/tests/generic/824.out @@ -0,0 +1,6 @@ +QA output created by 824 +Format and mount +Initialize file +Snapshot a file undergoing directio rewrite +Check for damage +Done diff --git a/tests/generic/825 b/tests/generic/825 new file mode 100755 index 0000000..2f58fb8 --- /dev/null +++ b/tests/generic/825 @@ -0,0 +1,105 @@ +#! /bin/bash +# FS QA Test No. 825 +# +# Test for races or FS corruption between reflink and direct I/O reading the +# target file. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=512 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full" +_cp_reflink $TESTDIR/file1 $TESTDIR/file3 +_scratch_remount + +fbytes() { + egrep -v '(61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61|62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62)' +} + +reader() { + while [ ! -e "$TESTDIR/finished" ]; do + _read_range "$TESTDIR/file3" 0 $((loops * BLKSZ)) -d | fbytes + done +} + +echo "Reflink and dio reread the files!" +reader & +for i in `seq 1 2`; do + seq $nr_loops -1 0 | while read i; do + _reflink_range "$TESTDIR/file1" $((i * BLKSZ)) \ + "$TESTDIR/file3" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && break + done + seq $nr_loops -1 0 | while read i; do + _reflink_range "$TESTDIR/file2" $((i * BLKSZ)) \ + "$TESTDIR/file3" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && break + done +done +echo "Finished reflinking" +touch "$TESTDIR/finished" +wait + +echo "Check fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" +# success, all done +status=0 +exit diff --git a/tests/generic/825.out b/tests/generic/825.out new file mode 100644 index 0000000..1e2f36c --- /dev/null +++ b/tests/generic/825.out @@ -0,0 +1,7 @@ +QA output created by 825 +Format and mount +Initialize files +Reflink and dio reread the files! +Finished reflinking +Check fs +Done diff --git a/tests/generic/826 b/tests/generic/826 new file mode 100755 index 0000000..d5c8e14 --- /dev/null +++ b/tests/generic/826 @@ -0,0 +1,105 @@ +#! /bin/bash +# FS QA Test No. 826 +# +# Test for races or FS corruption between reflink and buffered I/O reading the +# target file. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=512 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file3" +_scratch_remount + +fbytes() { + egrep -v '(61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61|62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62)' +} + +reader() { + while [ ! -e "$TESTDIR/finished" ]; do + _read_range "$TESTDIR/file3" 0 $((loops * BLKSZ)) | fbytes + done +} + +echo "Reflink and reread the files!" +reader & +for i in `seq 1 2`; do + seq $nr_loops -1 0 | while read i; do + _reflink_range "$TESTDIR/file1" $((i * BLKSZ)) \ + "$TESTDIR/file3" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && break + done + seq $nr_loops -1 0 | while read i; do + _reflink_range "$TESTDIR/file2" $((i * BLKSZ)) \ + "$TESTDIR/file3" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && break + done +done +echo "Finished reflinking" +touch "$TESTDIR/finished" +wait + +echo "Check fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" +# success, all done +status=0 +exit diff --git a/tests/generic/826.out b/tests/generic/826.out new file mode 100644 index 0000000..144f4bc --- /dev/null +++ b/tests/generic/826.out @@ -0,0 +1,7 @@ +QA output created by 826 +Format and mount +Initialize files +Reflink and reread the files! +Finished reflinking +Check fs +Done diff --git a/tests/generic/827 b/tests/generic/827 new file mode 100755 index 0000000..ce9dbdc --- /dev/null +++ b/tests/generic/827 @@ -0,0 +1,95 @@ +#! /bin/bash +# FS QA Test No. 827 +# +# Test for race between dedupe and writing the source file +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_dedupe + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=512 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full" +_scratch_remount + +overwrite() { + while [ ! -e "$TESTDIR/finished" ]; do + seq $nr_loops -1 0 | while read i; do + _pwrite_byte 0x61 $((i * BLKSZ)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full" + done + done +} + +echo "Dedupe and rewrite the file!" +overwrite & +for i in `seq 1 2`; do + seq $nr_loops -1 0 | while read i; do + _dedupe_range "$TESTDIR/file1" $((i * BLKSZ)) \ + "$TESTDIR/file2" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && break + done +done +echo "Finished dedupeing" +touch "$TESTDIR/finished" +wait + +echo "Check fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" +# success, all done +status=0 +exit diff --git a/tests/generic/827.out b/tests/generic/827.out new file mode 100644 index 0000000..1b05f59 --- /dev/null +++ b/tests/generic/827.out @@ -0,0 +1,7 @@ +QA output created by 827 +Format and mount +Initialize files +Dedupe and rewrite the file! +Finished dedupeing +Check fs +Done diff --git a/tests/generic/828 b/tests/generic/828 new file mode 100755 index 0000000..39c7206 --- /dev/null +++ b/tests/generic/828 @@ -0,0 +1,95 @@ +#! /bin/bash +# FS QA Test No. 828 +# +# Test for race between dedupe and writing the dest file +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_dedupe + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=512 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full" +_scratch_remount + +overwrite() { + while [ ! -e "$TESTDIR/finished" ]; do + seq $nr_loops -1 0 | while read i; do + _pwrite_byte 0x61 $((i * BLKSZ)) $BLKSZ "$TESTDIR/file2" >> "$seqres.full" + done + done +} + +echo "Dedupe and rewrite the file!" +overwrite & +for i in `seq 1 2`; do + seq $nr_loops -1 0 | while read i; do + _dedupe_range "$TESTDIR/file1" $((i * BLKSZ)) \ + "$TESTDIR/file2" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && break + done +done +echo "Finished dedupeing" +touch "$TESTDIR/finished" +wait + +echo "Check fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" +# success, all done +status=0 +exit diff --git a/tests/generic/828.out b/tests/generic/828.out new file mode 100644 index 0000000..fb31777 --- /dev/null +++ b/tests/generic/828.out @@ -0,0 +1,7 @@ +QA output created by 828 +Format and mount +Initialize files +Dedupe and rewrite the file! +Finished dedupeing +Check fs +Done diff --git a/tests/generic/829 b/tests/generic/829 new file mode 100755 index 0000000..7b5a40e --- /dev/null +++ b/tests/generic/829 @@ -0,0 +1,79 @@ +#! /bin/bash +# FS QA Test No. 829 +# +# Test for race between delete a file while rewriting its reflinked twin +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=4096 +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_scratch_remount + +echo "Delete while rewriting" +rm -rf "$TESTDIR/file1" & +_pwrite_byte 0x62 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +wait + +echo "Check fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" +# success, all done +status=0 +exit diff --git a/tests/generic/829.out b/tests/generic/829.out new file mode 100644 index 0000000..9cee8ba --- /dev/null +++ b/tests/generic/829.out @@ -0,0 +1,6 @@ +QA output created by 829 +Format and mount +Initialize files +Delete while rewriting +Check fs +Done diff --git a/tests/generic/group b/tests/generic/group index 58c68c8..0c137ea 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -228,5 +228,14 @@ 817 auto quick clone 818 auto quick clone 819 auto quick clone +821 auto quick clone +822 auto quick clone +823 auto quick clone +824 auto quick clone +825 auto quick clone +826 auto quick clone +827 auto quick clone +828 auto quick clone +829 auto quick clone 837 auto quick clone 838 auto quick clone From darrick.wong@oracle.com Wed Nov 11 13:27:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6CFBA29E3D for ; Wed, 11 Nov 2015 13:27:47 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 4EAD1304043 for ; Wed, 11 Nov 2015 11:27:47 -0800 (PST) X-ASG-Debug-ID: 1447270062-04cbb0242512cde0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id IlD1RL9XGYHdOs92 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:27:43 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJRJgp030869 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:27:20 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJRJGX024289 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:27:19 GMT Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJRJ6K002169; Wed, 11 Nov 2015 19:27:19 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:27:18 -0800 Subject: [PATCH 07/11] reflink: test accuracy of free block counts From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 07/11] reflink: test accuracy of free block counts To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Wed, 11 Nov 2015 11:27:17 -0800 Message-ID: <20151111192717.15056.86798.stgit@birch.djwong.org> In-Reply-To: <20151111192628.15056.6451.stgit@birch.djwong.org> References: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447270063 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT, UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Check that the free block counts seem to be handled correctly in the reflink operation and subsequent attempts to rewrite reflinked copies. Signed-off-by: Darrick J. Wong --- tests/generic/830 | 78 ++++++++++++++++++++++++++++++ tests/generic/830.out | 4 ++ tests/generic/831 | 98 +++++++++++++++++++++++++++++++++++++ tests/generic/831.out | 8 +++ tests/generic/832 | 103 +++++++++++++++++++++++++++++++++++++++ tests/generic/832.out | 8 +++ tests/generic/833 | 102 +++++++++++++++++++++++++++++++++++++++ tests/generic/833.out | 8 +++ tests/generic/834 | 110 ++++++++++++++++++++++++++++++++++++++++++ tests/generic/834.out | 11 ++++ tests/generic/835 | 114 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/835.out | 11 ++++ tests/generic/836 | 129 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/836.out | 32 ++++++++++++ tests/generic/group | 7 +++ 15 files changed, 823 insertions(+) create mode 100755 tests/generic/830 create mode 100644 tests/generic/830.out create mode 100755 tests/generic/831 create mode 100644 tests/generic/831.out create mode 100755 tests/generic/832 create mode 100644 tests/generic/832.out create mode 100755 tests/generic/833 create mode 100644 tests/generic/833.out create mode 100755 tests/generic/834 create mode 100644 tests/generic/834.out create mode 100755 tests/generic/835 create mode 100644 tests/generic/835.out create mode 100755 tests/generic/836 create mode 100644 tests/generic/836.out diff --git a/tests/generic/830 b/tests/generic/830 new file mode 100755 index 0000000..d85bacf --- /dev/null +++ b/tests/generic/830 @@ -0,0 +1,78 @@ +#! /bin/bash +# FS QA Test No. 830 +# +# Ensure that reflinking a file N times doesn't eat a lot of blocks +# - Create a file and record fs block usage +# - Create some reflink copies +# - Compare fs block usage to before +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f $TESTDIR -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +NR=7 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +sync +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file.$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +_within_tolerance "free blocks after reflink" $FREE_BLOCKS1 $FREE_BLOCKS0 $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/830.out b/tests/generic/830.out new file mode 100644 index 0000000..76e2f1d --- /dev/null +++ b/tests/generic/830.out @@ -0,0 +1,4 @@ +QA output created by 830 +Create the original file blocks +Create the reflink copies +free blocks after reflink is in range diff --git a/tests/generic/831 b/tests/generic/831 new file mode 100755 index 0000000..d729769 --- /dev/null +++ b/tests/generic/831 @@ -0,0 +1,98 @@ +#! /bin/bash +# FS QA Test No. 831 +# +# Ensure that deleting all copies of a file reflinked N times releases the blocks +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - Delete some copies of the file +# - Record fs block usage (2) +# - Delete all copies of the file +# - Compare fs block usage to (2), (1), and (0) +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=7 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +sync + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file.$i" +done +_cp_reflink "$TESTDIR/file1" "$TESTDIR/survivor" +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +echo "Delete most of the files" +rm -rf "$TESTDIR"/file* +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +echo "Delete all the files" +rm -rf "$TESTDIR"/* +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 + +_within_tolerance "free blocks after reflink" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after deleting some reflink copies" $FREE_BLOCKS2 $FREE_BLOCKS1 $MARGIN -v + +_within_tolerance "free blocks after deleting all copies" $FREE_BLOCKS3 $FREE_BLOCKS0 $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/831.out b/tests/generic/831.out new file mode 100644 index 0000000..88e0a23 --- /dev/null +++ b/tests/generic/831.out @@ -0,0 +1,8 @@ +QA output created by 831 +Create the original file blocks +Create the reflink copies +Delete most of the files +Delete all the files +free blocks after reflink is in range +free blocks after deleting some reflink copies is in range +free blocks after deleting all copies is in range diff --git a/tests/generic/832 b/tests/generic/832 new file mode 100755 index 0000000..4f12b77 --- /dev/null +++ b/tests/generic/832 @@ -0,0 +1,103 @@ +#! /bin/bash +# FS QA Test No. 832 +# +# Ensure that punching all copies of a file reflinked N times releases the blocks +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - Punch some blocks of the copies +# - Record fs block usage (2) +# - Punch all blocks of the copies +# - Compare fs block usage to (2), (1), and (0) +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "fpunch" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +sync + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +echo "Punch most of the blocks" +"$XFS_IO_PROG" -f -c "fpunch 0 $SZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "fpunch 0 $((SZ / 2))" "$TESTDIR/file3" +"$XFS_IO_PROG" -f -c "fpunch $((SZ / 2)) $((SZ / 2))" "$TESTDIR/file4" +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +echo "Punch all the files" +for i in `seq 2 $NR`; do + "$XFS_IO_PROG" -f -c "fpunch 0 $SZ" "$TESTDIR/file$i" +done +"$XFS_IO_PROG" -f -c "fpunch 0 $SZ" "$TESTDIR/file1" +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 + +_within_tolerance "free blocks after reflink" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after punching some reflink copies" $FREE_BLOCKS2 $FREE_BLOCKS1 $MARGIN -v + +_within_tolerance "free blocks after punching all copies" $FREE_BLOCKS3 $FREE_BLOCKS0 $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/832.out b/tests/generic/832.out new file mode 100644 index 0000000..bb95578 --- /dev/null +++ b/tests/generic/832.out @@ -0,0 +1,8 @@ +QA output created by 832 +Create the original file blocks +Create the reflink copies +Punch most of the blocks +Punch all the files +free blocks after reflink is in range +free blocks after punching some reflink copies is in range +free blocks after punching all copies is in range diff --git a/tests/generic/833 b/tests/generic/833 new file mode 100755 index 0000000..07dfabf --- /dev/null +++ b/tests/generic/833 @@ -0,0 +1,102 @@ +#! /bin/bash +# FS QA Test No. 833 +# +# Ensure that collapse-range on all copies of a file reflinked N times releases the blocks +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - Collapse-range some blocks of the copies +# - Record fs block usage (2) +# - Truncate all blocks of the copies +# - Compare fs block usage to (2), (1), and (0) +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "fcollapse" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +echo "Collapse most of the blocks" +"$XFS_IO_PROG" -f -c "fcollapse 0 $(((BLKS - 1) * BLKSZ))" $TESTDIR/file2 +"$XFS_IO_PROG" -f -c "fcollapse 0 $((SZ / 2))" $TESTDIR/file3 +"$XFS_IO_PROG" -f -c "fcollapse $((SZ / 2)) $(( ((BLKS / 2) - 1) * BLKSZ))" $TESTDIR/file4 +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +echo "Collpase nearly all the files" +"$XFS_IO_PROG" -f -c "fcollapse 0 $(( ((BLKS / 2) - 1) * BLKSZ))" $TESTDIR/file3 +"$XFS_IO_PROG" -f -c "fcollapse 0 $((SZ / 2))" $TESTDIR/file4 +"$XFS_IO_PROG" -f -c "fcollapse 0 $(( (BLKS - 1) * BLKSZ))" $TESTDIR/file1 +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 + +_within_tolerance "free blocks after reflink" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after fcollapsing some reflink copies" $FREE_BLOCKS2 $FREE_BLOCKS1 $MARGIN -v + +_within_tolerance "free blocks after fcollapsing all copies" $FREE_BLOCKS3 $FREE_BLOCKS0 $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/833.out b/tests/generic/833.out new file mode 100644 index 0000000..a9a2941 --- /dev/null +++ b/tests/generic/833.out @@ -0,0 +1,8 @@ +QA output created by 833 +Create the original file blocks +Create the reflink copies +Collapse most of the blocks +Collpase nearly all the files +free blocks after reflink is in range +free blocks after fcollapsing some reflink copies is in range +free blocks after fcollapsing all copies is in range diff --git a/tests/generic/834 b/tests/generic/834 new file mode 100755 index 0000000..d24dfa5 --- /dev/null +++ b/tests/generic/834 @@ -0,0 +1,110 @@ +#! /bin/bash +# FS QA Test No. 834 +# +# Ensure that CoW on all copies of a file reflinked N times increases block count +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - CoW some blocks of the copies +# - Record fs block usage (2) +# - CoW all the rest of the blocks of the copies +# - Compare fs block usage to (2), (1), and (0) +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename $0` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=4 +SZ=$((BLKS * BLKSZ)) +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite some of the blocks" +_pwrite_byte 0x62 0 $SZ "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x63 0 $((SZ / 2)) "$TESTDIR/file3" >> "$seqres.full" +_pwrite_byte 0x64 $((SZ / 2)) $((SZ / 2)) "$TESTDIR/file4" >> "$seqres.full" +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite all the files" +_pwrite_byte 0x62 0 $SZ "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x63 0 $SZ "$TESTDIR/file3" >> "$seqres.full" +_pwrite_byte 0x64 0 $SZ "$TESTDIR/file4" >> "$seqres.full" +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite the original file" +_pwrite_byte 0x65 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount +FREE_BLOCKS4=$(stat -f "$TESTDIR" -c '%f') +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 $FREE_BLOCKS4 + +_within_tolerance "free blocks after reflinking" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after partially CoWing some copies" $FREE_BLOCKS2 $((FREE_BLOCKS1 - (2 * BLKS))) $MARGIN -v + +_within_tolerance "free blocks after CoWing all copies" $FREE_BLOCKS3 $((FREE_BLOCKS2 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after overwriting original" $FREE_BLOCKS4 $FREE_BLOCKS3 $MARGIN -v + +_within_tolerance "free blocks after all tests" $FREE_BLOCKS4 $((FREE_BLOCKS0 - (4 * BLKS))) $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/834.out b/tests/generic/834.out new file mode 100644 index 0000000..e67e803 --- /dev/null +++ b/tests/generic/834.out @@ -0,0 +1,11 @@ +QA output created by 834 +Create the original file blocks +Create the reflink copies +Rewrite some of the blocks +Rewrite all the files +Rewrite the original file +free blocks after reflinking is in range +free blocks after partially CoWing some copies is in range +free blocks after CoWing all copies is in range +free blocks after overwriting original is in range +free blocks after all tests is in range diff --git a/tests/generic/835 b/tests/generic/835 new file mode 100755 index 0000000..881063b --- /dev/null +++ b/tests/generic/835 @@ -0,0 +1,114 @@ +#! /bin/bash +# FS QA Test No. 835 +# +# Ensure that CoW on all copies of a file reflinked N times increases block count +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - CoW some blocks of the copies +# - Record fs block usage (2) +# - CoW all the rest of the blocks of the copies +# - Compare fs block usage to (2), (1), and (0) +# +# The main difference from 834 is that we use zero range, directio, and +# mmap to mix things up a bit. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "fzero" + +rm -f "$seqres.full" + +TESTDIR=$TEST_DIR/test-$seq +rm -rf $TESTDIR +mkdir $TESTDIR + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite some of the blocks" +"$XFS_IO_PROG" -f -c "fzero 0 $SZ" "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x63 0 $((SZ / 2)) "$TESTDIR/file3" -d >> "$seqres.full" +_mwrite_byte 0x64 $((SZ / 2)) $((SZ / 2)) $SZ "$TESTDIR/file4" >> "$seqres.full" +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite all the files" +_pwrite_byte 0x62 0 $SZ "$TESTDIR/file2" -d >> "$seqres.full" +_mwrite_byte 0x63 0 $SZ $SZ "$TESTDIR/file3" >> "$seqres.full" +"$XFS_IO_PROG" -f -c "fzero 0 $SZ" $TESTDIR/file4 >> "$seqres.full" +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite the original file" +_pwrite_byte 0x65 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount +FREE_BLOCKS4=$(stat -f "$TESTDIR" -c '%f') +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 $FREE_BLOCKS4 + +_within_tolerance "free blocks after reflinking" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after partially CoWing some copies" $FREE_BLOCKS2 $((FREE_BLOCKS1 - (2 * BLKS))) $MARGIN -v + +_within_tolerance "free blocks after CoWing all copies" $FREE_BLOCKS3 $((FREE_BLOCKS2 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after overwriting original" $FREE_BLOCKS4 $FREE_BLOCKS3 $MARGIN -v + +_within_tolerance "free blocks after all tests" $FREE_BLOCKS4 $((FREE_BLOCKS0 - (4 * BLKS))) $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/835.out b/tests/generic/835.out new file mode 100644 index 0000000..c1103be --- /dev/null +++ b/tests/generic/835.out @@ -0,0 +1,11 @@ +QA output created by 835 +Create the original file blocks +Create the reflink copies +Rewrite some of the blocks +Rewrite all the files +Rewrite the original file +free blocks after reflinking is in range +free blocks after partially CoWing some copies is in range +free blocks after CoWing all copies is in range +free blocks after overwriting original is in range +free blocks after all tests is in range diff --git a/tests/generic/836 b/tests/generic/836 new file mode 100755 index 0000000..2e0639f --- /dev/null +++ b/tests/generic/836 @@ -0,0 +1,129 @@ +#! /bin/bash +# FS QA Test No. 836 +# +# Ensure that fallocate on reflinked files actually CoWs the shared blocks. +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - funshare half of one of the copies +# - Record fs block usage (2) +# - funshare all of the copies +# - Record fs block usage (3) +# - rewrite the original file +# - Record fs block usage (4) +# - Compare fs block usage of 0-4 to ensure that block usage behaves as +# we expect. +# +# "funshare" refers to fallocate copy-on-writing the shared blocks +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +if [ $FSTYP = "btrfs" ]; then + _notrun "btrfs doesn't handle unshare on fallocate" +fi + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "falloc" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') +lsattr -l $TESTDIR/ | _filter_test_dir + +echo "funshare part of a file" +"$XFS_IO_PROG" -f -c "falloc 0 $((SZ / 2))" "$TESTDIR/file2" +_test_remount +lsattr -l $TESTDIR/ | _filter_test_dir + +echo "funshare some of the copies" +"$XFS_IO_PROG" -f -c "falloc 0 $SZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "falloc 0 $SZ" "$TESTDIR/file3" +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') +lsattr -l $TESTDIR/ | _filter_test_dir + +echo "funshare the rest of the files" +"$XFS_IO_PROG" -f -c "falloc 0 $SZ" "$TESTDIR/file4" +"$XFS_IO_PROG" -f -c "falloc 0 $SZ" "$TESTDIR/file1" +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') +lsattr -l $TESTDIR/ | _filter_test_dir + +echo "Rewrite the original file" +_pwrite_byte 0x65 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount +FREE_BLOCKS4=$(stat -f "$TESTDIR" -c '%f') +lsattr -l $TESTDIR/ | _filter_test_dir +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 $FREE_BLOCKS4 + +_within_tolerance "free blocks after reflinking" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after nocow'ing some copies" $FREE_BLOCKS2 $((FREE_BLOCKS1 - (2 * BLKS))) $MARGIN -v + +_within_tolerance "free blocks after nocow'ing all copies" $FREE_BLOCKS3 $((FREE_BLOCKS2 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after overwriting original" $FREE_BLOCKS4 $FREE_BLOCKS3 $MARGIN -v + +_within_tolerance "free blocks after all tests" $FREE_BLOCKS4 $((FREE_BLOCKS0 - (4 * BLKS))) $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/836.out b/tests/generic/836.out new file mode 100644 index 0000000..45f7750 --- /dev/null +++ b/tests/generic/836.out @@ -0,0 +1,32 @@ +QA output created by 836 +Create the original file blocks +Create the reflink copies +TEST_DIR/test-836/file1 --- +TEST_DIR/test-836/file2 --- +TEST_DIR/test-836/file3 --- +TEST_DIR/test-836/file4 --- +funshare part of a file +TEST_DIR/test-836/file1 --- +TEST_DIR/test-836/file2 --- +TEST_DIR/test-836/file3 --- +TEST_DIR/test-836/file4 --- +funshare some of the copies +TEST_DIR/test-836/file1 --- +TEST_DIR/test-836/file2 No_COW +TEST_DIR/test-836/file3 No_COW +TEST_DIR/test-836/file4 --- +funshare the rest of the files +TEST_DIR/test-836/file1 No_COW +TEST_DIR/test-836/file2 No_COW +TEST_DIR/test-836/file3 No_COW +TEST_DIR/test-836/file4 No_COW +Rewrite the original file +TEST_DIR/test-836/file1 No_COW +TEST_DIR/test-836/file2 No_COW +TEST_DIR/test-836/file3 No_COW +TEST_DIR/test-836/file4 No_COW +free blocks after reflinking is in range +free blocks after nocow'ing some copies is in range +free blocks after nocow'ing all copies is in range +free blocks after overwriting original is in range +free blocks after all tests is in range diff --git a/tests/generic/group b/tests/generic/group index 0c137ea..9b57872 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -237,5 +237,12 @@ 827 auto quick clone 828 auto quick clone 829 auto quick clone +830 auto quick clone +831 auto quick clone +832 auto quick clone +833 auto quick clone +834 auto quick clone +835 auto quick clone +836 auto quick clone 837 auto quick clone 838 auto quick clone From darrick.wong@oracle.com Wed Nov 11 13:27:50 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 69D7629E34 for ; Wed, 11 Nov 2015 13:27:50 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id E3B4FAC002 for ; Wed, 11 Nov 2015 11:27:49 -0800 (PST) X-ASG-Debug-ID: 1447270067-04cbb0242412cde0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id lUfzDuN20582kFSE (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:27:47 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJRRql029648 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:27:27 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJRQ99030176 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:27:26 GMT Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJRQmE020055; Wed, 11 Nov 2015 19:27:26 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:27:25 -0800 Subject: [PATCH 08/11] reflink: test error conditions due to bad inputs From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 08/11] reflink: test error conditions due to bad inputs To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Wed, 11 Nov 2015 11:27:24 -0800 Message-ID: <20151111192724.15056.40330.stgit@birch.djwong.org> In-Reply-To: <20151111192628.15056.6451.stgit@birch.djwong.org> References: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447270067 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Check that we can feed bad inputs to reflink and it'll reject them. Signed-off-by: Darrick J. Wong --- tests/generic/839 | 106 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/839.out | 19 +++++++++ tests/generic/846 | 106 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/846.out | 19 +++++++++ tests/generic/group | 2 + 5 files changed, 252 insertions(+) create mode 100755 tests/generic/839 create mode 100644 tests/generic/839.out create mode 100755 tests/generic/846 create mode 100644 tests/generic/846.out diff --git a/tests/generic/839 b/tests/generic/839 new file mode 100755 index 0000000..0b754b1 --- /dev/null +++ b/tests/generic/839 @@ -0,0 +1,106 @@ +#! /bin/bash +# FS QA Test No. 839 +# +# Check that various invalid reflink scenarios are rejected +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_scratch_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR1="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR1" +mkdir "$TESTDIR1" + +TESTDIR2=$SCRATCH_MNT/test-$seq +rm -rf "$TESTDIR2" +mkdir "$TESTDIR2" + +echo "Create the original files" +BLKSZ="$(stat -f $TESTDIR1 -c '%S')" +BLKS=1000 +MARGIN=50 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f $TESTDIR1 -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file2" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR2/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR2/file2" >> "$seqres.full" +sync + +echo "Try cross-device reflink" +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR2/file1" 0 $BLKSZ + +echo "Try unaligned reflink" +_reflink_range "$TESTDIR1/file1" 37 "$TESTDIR1/file1" 59 23 + +echo "Try overlapping reflink" +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/file1" 1 $((BLKSZ * 2)) + +echo "Try reflink past EOF" +_reflink_range "$TESTDIR1/file1" $(( (BLKS + 10) * BLKSZ)) "$TESTDIR1/file1" 0 $BLKSZ + +chattr +i $TESTDIR1/file1 $TESTDIR1/file2 +echo "Try reflink on immutable files" +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/file2" 0 $BLKSZ 2>&1 | _filter_test_dir +chattr -i $TESTDIR1/file1 $TESTDIR1/file2 + +echo "Reflink two files" +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/file2" 0 $BLKSZ >> "$seqres.full" +_reflink_range "$TESTDIR2/file1" 0 "$TESTDIR2/file2" 0 $BLKSZ >> "$seqres.full" + +lsattr -l $TESTDIR1/ | _filter_test_dir +lsattr -l $TESTDIR2/ | _filter_scratch + +echo "Check scratch fs" +umount $SCRATCH_MNT +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/839.out b/tests/generic/839.out new file mode 100644 index 0000000..d8703b1 --- /dev/null +++ b/tests/generic/839.out @@ -0,0 +1,19 @@ +QA output created by 839 +Format and mount +Create the original files +Try cross-device reflink +XFS_IOC_CLONE_RANGE: Invalid cross-device link +Try unaligned reflink +XFS_IOC_CLONE_RANGE: Invalid argument +Try overlapping reflink +XFS_IOC_CLONE_RANGE: Invalid argument +Try reflink past EOF +XFS_IOC_CLONE_RANGE: Invalid argument +Try reflink on immutable files +TEST_DIR/test-839/file2: Permission denied +Reflink two files +TEST_DIR/test-839/file1 --- +TEST_DIR/test-839/file2 --- +SCRATCH_MNT/test-839/file1 --- +SCRATCH_MNT/test-839/file2 --- +Check scratch fs diff --git a/tests/generic/846 b/tests/generic/846 new file mode 100755 index 0000000..e425fbd --- /dev/null +++ b/tests/generic/846 @@ -0,0 +1,106 @@ +#! /bin/bash +# FS QA Test No. 839 +# +# Check that various invalid dedupe scenarios are rejected +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_dedupe +_require_scratch_dedupe + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR1="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR1" +mkdir "$TESTDIR1" + +TESTDIR2=$SCRATCH_MNT/test-$seq +rm -rf "$TESTDIR2" +mkdir "$TESTDIR2" + +echo "Create the original files" +BLKSZ="$(stat -f $TESTDIR1 -c '%S')" +BLKS=1000 +MARGIN=50 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f $TESTDIR1 -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file2" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR2/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR2/file2" >> "$seqres.full" +sync + +echo "Try cross-device dedupe" +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR2/file1" 0 $BLKSZ + +echo "Try unaligned dedupe" +_dedupe_range "$TESTDIR1/file1" 37 "$TESTDIR1/file1" 59 23 + +echo "Try overlapping dedupe" +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/file1" 1 $((BLKSZ * 2)) + +echo "Try dedupe past EOF" +_dedupe_range "$TESTDIR1/file1" $(( (BLKS + 10) * BLKSZ)) "$TESTDIR1/file1" 0 $BLKSZ + +chattr +i $TESTDIR1/file1 $TESTDIR1/file2 +echo "Try dedupe on immutable files" +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/file2" 0 $BLKSZ 2>&1 | _filter_test_dir +chattr -i $TESTDIR1/file1 $TESTDIR1/file2 + +echo "Dedupe two files" +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/file2" 0 $BLKSZ >> "$seqres.full" +_dedupe_range "$TESTDIR2/file1" 0 "$TESTDIR2/file2" 0 $BLKSZ >> "$seqres.full" + +lsattr -l $TESTDIR1/ | _filter_test_dir +lsattr -l $TESTDIR2/ | _filter_scratch + +echo "Check scratch fs" +umount $SCRATCH_MNT +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/846.out b/tests/generic/846.out new file mode 100644 index 0000000..65a20bf --- /dev/null +++ b/tests/generic/846.out @@ -0,0 +1,19 @@ +QA output created by 846 +Format and mount +Create the original files +Try cross-device dedupe +dedupe: Invalid cross-device link +Try unaligned dedupe +dedupe: Invalid argument +Try overlapping dedupe +dedupe: Invalid argument +Try dedupe past EOF +dedupe: Invalid argument +Try dedupe on immutable files +TEST_DIR/test-846/file2: Permission denied +Dedupe two files +TEST_DIR/test-846/file1 --- +TEST_DIR/test-846/file2 --- +SCRATCH_MNT/test-846/file1 --- +SCRATCH_MNT/test-846/file2 --- +Check scratch fs diff --git a/tests/generic/group b/tests/generic/group index 9b57872..90f28aa 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -246,3 +246,5 @@ 836 auto quick clone 837 auto quick clone 838 auto quick clone +839 auto quick clone +846 auto quick clone From darrick.wong@oracle.com Wed Nov 11 13:28:05 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 369ED29E1F for ; Wed, 11 Nov 2015 13:28:05 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id D9FEAAC002 for ; Wed, 11 Nov 2015 11:28:04 -0800 (PST) X-ASG-Debug-ID: 1447270082-04bdf03f051214a0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id FZpo7EvHwXSMMGiI (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:28:02 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJReDH029937 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:27:40 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABJRe3N003369 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:27:40 GMT Received: from abhmp0016.oracle.com (abhmp0016.oracle.com [141.146.116.22]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJRdbA020188; Wed, 11 Nov 2015 19:27:39 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:27:39 -0800 Subject: [PATCH 10/11] reflink: test what happens when we hit resource limits From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 10/11] reflink: test what happens when we hit resource limits To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Wed, 11 Nov 2015 11:27:37 -0800 Message-ID: <20151111192737.15056.44475.stgit@birch.djwong.org> In-Reply-To: <20151111192628.15056.6451.stgit@birch.djwong.org> References: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447270082 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Add a few horrible opt-in stress tests to see what happens if we try to reflink the same block billions of times, and what happens if we run out of space while reflinking a file. Signed-off-by: Darrick J. Wong --- tests/generic/840 | 99 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/840.out | 0 tests/generic/841 | 81 ++++++++++++++++++++++++++++++++++++++++ tests/generic/841.out | 5 ++ tests/generic/group | 2 + 5 files changed, 187 insertions(+) create mode 100755 tests/generic/840 create mode 100644 tests/generic/840.out create mode 100755 tests/generic/841 create mode 100644 tests/generic/841.out diff --git a/tests/generic/840 b/tests/generic/840 new file mode 100755 index 0000000..137cc3d --- /dev/null +++ b/tests/generic/840 @@ -0,0 +1,99 @@ +#! /bin/bash +# FS QA Test No. 840 +# +# Try to hit the maximum reference count (eek!) +# +# This test runs extremely slowly, so it's not automatically run anywhere. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +# Well let's hope the maximum reflink count is (less than (ha!)) 2^32... + +echo "Create a one block file" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $BLKSZ "$TESTDIR/file2" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" >> "$seqres.full" + +nr=32 +fnr=32 +for i in $(seq 0 $fnr); do + echo " ++ Reflink size $i, $(( (2 ** i) * BLKSZ)) bytes" | tee -a "$seqres.full" + n=$(( (2 ** i) * BLKSZ)) + _reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file1" $n $n >> "$seqres.full" || break +done + +nrf=$((nr - fnr)) +echo "Clone $((2 ** nrf)) files" +seq 0 $((2 ** nrf)) | while read i; do + _cp-reflink "$TESTDIR/file1" "$TESTDIR/file1-$i" +done + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Remove big file and recheck" +_scratch_mount >> "$seqres.full" 2>&1 +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Remove all files and recheck" +_scratch_mount >> "$seqres.full" 2>&1 +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/840.out b/tests/generic/840.out new file mode 100644 index 0000000..e69de29 diff --git a/tests/generic/841 b/tests/generic/841 new file mode 100755 index 0000000..b89dba4 --- /dev/null +++ b/tests/generic/841 @@ -0,0 +1,81 @@ +#! /bin/bash +# FS QA Test No. 841 +# +# Try to run out of space while cloning? +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +NR_FREE="$(stat -f -c '%f' "$TESTDIR")" +echo "Create a big file" +touch "$TESTDIR/file0" "$TESTDIR/file1" +_pwrite_byte 0x61 0 $((BLKSZ * NR_FREE)) "$TESTDIR/bigfile" >> "$seqres.full" 2>&1 +_scratch_remount +sz="$(stat -c '%s' "$TESTDIR/bigfile")" + +blks="$((sz / BLKSZ))" +echo "Try to reflink" +seq 0 $blks | while read lblk; do + fname="$TESTDIR/file$((lblk % 2))" + out="$(_reflink_range "$TESTDIR/bigfile" $((lblk * BLKSZ)) "$fname" $((lblk * BLKSZ)) $BLKSZ 2>&1)" + echo "$fname: $out" >> "$seqres.full" + echo "$out" | grep -q "No space left on device" && break +done + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/841.out b/tests/generic/841.out new file mode 100644 index 0000000..33c46fd --- /dev/null +++ b/tests/generic/841.out @@ -0,0 +1,5 @@ +QA output created by 841 +Format and mount +Create a big file +Try to reflink +Check scratch fs diff --git a/tests/generic/group b/tests/generic/group index 90f28aa..eef608f 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -247,4 +247,6 @@ 837 auto quick clone 838 auto quick clone 839 auto quick clone +840 clone_stress +841 clone_stress 846 auto quick clone From darrick.wong@oracle.com Wed Nov 11 13:28:06 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id CB77729E1F for ; Wed, 11 Nov 2015 13:28:05 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6C74DAC001 for ; Wed, 11 Nov 2015 11:28:05 -0800 (PST) X-ASG-Debug-ID: 1447270081-04bdf03f02121490001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id VYAshTYy12EJWDd3 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:28:02 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJRXrA031107 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:27:34 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tABJRXcH002988 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:27:33 GMT Received: from abhmp0008.oracle.com (abhmp0008.oracle.com [141.146.116.14]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJRWpD020113; Wed, 11 Nov 2015 19:27:32 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:27:32 -0800 Subject: [PATCH 09/11] xfs: test xfs-specific reflink pieces From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 09/11] xfs: test xfs-specific reflink pieces To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Wed, 11 Nov 2015 11:27:30 -0800 Message-ID: <20151111192730.15056.19977.stgit@birch.djwong.org> In-Reply-To: <20151111192628.15056.6451.stgit@birch.djwong.org> References: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447270082 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Check that growfs and xfs_fsr still work properly on reflinked fses. Signed-off-by: Darrick J. Wong --- tests/xfs/800 | 79 ++++++++++++++++++++++++++++ tests/xfs/800.out | 6 ++ tests/xfs/801 | 148 +++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/801.out | 27 ++++++++++ tests/xfs/802 | 87 +++++++++++++++++++++++++++++++ tests/xfs/802.out | 6 ++ tests/xfs/803 | 109 +++++++++++++++++++++++++++++++++++++++ tests/xfs/803.out | 13 +++++ tests/xfs/804 | 77 ++++++++++++++++++++++++++++ tests/xfs/804.out | 0 tests/xfs/group | 5 ++ 11 files changed, 557 insertions(+) create mode 100755 tests/xfs/800 create mode 100644 tests/xfs/800.out create mode 100755 tests/xfs/801 create mode 100644 tests/xfs/801.out create mode 100755 tests/xfs/802 create mode 100644 tests/xfs/802.out create mode 100755 tests/xfs/803 create mode 100644 tests/xfs/803.out create mode 100755 tests/xfs/804 create mode 100644 tests/xfs/804.out diff --git a/tests/xfs/800 b/tests/xfs/800 new file mode 100755 index 0000000..d9fe5b4 --- /dev/null +++ b/tests/xfs/800 @@ -0,0 +1,79 @@ +#! /bin/bash +# FS QA Test No. 800 +# +# Tests xfs_growfs on a reflinked filesystem +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f "$tmp".* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs -d size=$((2 * 4096 * 4096)) -l size=4194304 > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file and reflink to copy1, copy2" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +_pwrite_byte 0x61 0 $((BLKSZ * 14 + 71)) "$TESTDIR/original" >> "$seqres.full" +_cp_reflink "$TESTDIR/original" "$TESTDIR/copy1" +_cp_reflink "$TESTDIR/copy1" "$TESTDIR/copy2" + +echo "Grow fs" +"$XFS_GROWFS_PROG" "$SCRATCH_MNT" 2>&1 | _filter_growfs >> "$seqres.full" +_scratch_remount + +echo "Create more reflink copies" +_cp_reflink "$TESTDIR/original" "$TESTDIR/copy3" + +xfs_info "$SCRATCH_MNT" >> "$seqres.full" + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/xfs/800.out b/tests/xfs/800.out new file mode 100644 index 0000000..73d4f71 --- /dev/null +++ b/tests/xfs/800.out @@ -0,0 +1,6 @@ +QA output created by 800 +Format and mount +Create the original file and reflink to copy1, copy2 +Grow fs +Create more reflink copies +Check scratch fs diff --git a/tests/xfs/801 b/tests/xfs/801 new file mode 100755 index 0000000..172fb29 --- /dev/null +++ b/tests/xfs/801 @@ -0,0 +1,148 @@ +#! /bin/bash +# FS QA Test No. 801 +# +# Ensure that xfs_fsr un-reflinks files while defragmenting +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f "$tmp".* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') + +echo "Create the original file and reflink to file2, file3" +BLKS=2000 +MARGIN=100 +BLKSZ=65536 +REAL_BLKSZ="$(stat -f $TESTDIR -c '%S')" +BLKSZ_FACTOR=$((BLKSZ / REAL_BLKSZ)) +_pwrite_byte 0x61 0 $((BLKS * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_cp_reflink "$TESTDIR/file2" "$TESTDIR/file3" +_cp_reflink "$TESTDIR/file3" "$TESTDIR/file4" +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +md5sum "$TESTDIR/file1" | _filter_scratch +md5sum "$TESTDIR/file2" | _filter_scratch +md5sum "$TESTDIR/file3" | _filter_scratch +md5sum "$TESTDIR/file4" | _filter_scratch + +C01=$(_md5_checksum "$TESTDIR/file1") +C02=$(_md5_checksum "$TESTDIR/file2") +C03=$(_md5_checksum "$TESTDIR/file3") +C04=$(_md5_checksum "$TESTDIR/file4") + +echo "CoW the reflink copies" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x63 $(( BLKSZ * (BLKS - 1) )) $BLKSZ "$TESTDIR/file3" >> "$seqres.full" +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +md5sum "$TESTDIR/file1" | _filter_scratch +md5sum "$TESTDIR/file2" | _filter_scratch +md5sum "$TESTDIR/file3" | _filter_scratch +md5sum "$TESTDIR/file4" | _filter_scratch + +C11=$(_md5_checksum "$TESTDIR/file1") +C12=$(_md5_checksum "$TESTDIR/file2") +C13=$(_md5_checksum "$TESTDIR/file3") +C14=$(_md5_checksum "$TESTDIR/file4") + +echo "Defragment" +lsattr -l "$TESTDIR/" | _filter_scratch +xfs_fsr -v -d "$TESTDIR/file1" >> "$seqres.full" +xfs_fsr -v -d "$TESTDIR/file2" >> "$seqres.full" # fsr probably breaks the link +xfs_fsr -v -d "$TESTDIR/file3" >> "$seqres.full" # fsr probably breaks the link +xfs_fsr -v -d "$TESTDIR/file4" >> "$seqres.full" # fsr probably ignores this file +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') + +md5sum "$TESTDIR/file1" | _filter_scratch +md5sum "$TESTDIR/file2" | _filter_scratch +md5sum "$TESTDIR/file3" | _filter_scratch +md5sum "$TESTDIR/file4" | _filter_scratch + +C21=$(_md5_checksum "$TESTDIR/file1") +C22=$(_md5_checksum "$TESTDIR/file2") +C23=$(_md5_checksum "$TESTDIR/file3") +C24=$(_md5_checksum "$TESTDIR/file4") + +echo "Check files" +test $C01 = $C02 || echo "Files 1-2 do not match" +test $C01 = $C03 || echo "Files 1-3 do not match" +test $C01 = $C04 || echo "Files 1-4 do not match" +test $C02 = $C03 || echo "Files 2-3 do not match" +test $C02 = $C04 || echo "Files 2-4 do not match" +test $C03 = $C04 || echo "Files 3-4 do not match" + +test $C01 = $C11 || echo "File1 should not be different after CoW" +test $C02 != $C12 || echo "File2 should be different after CoW" +test $C03 != $C13 || echo "File3 should be different after CoW" +test $C04 = $C14 || echo "File4 should not be different after CoW" + +test $C11 = $C21 || echo "File1 changed by defrag" +test $C12 = $C22 || echo "File2 changed by defrag" +test $C13 = $C23 || echo "File3 changed by defrag" +test $C14 = $C24 || echo "File4 changed by defrag" + +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 + +_within_tolerance "free blocks after creating some reflink copies" $FREE_BLOCKS1 $((FREE_BLOCKS0 - (BLKS * BLKSZ_FACTOR) )) $MARGIN -v +_within_tolerance "free blocks after CoW some reflink copies" $FREE_BLOCKS2 $((FREE_BLOCKS1 - 2)) $MARGIN -v +_within_tolerance "free blocks after defragging all reflink copies" $FREE_BLOCKS3 $((FREE_BLOCKS2 - (BLKS * 2 * BLKSZ_FACTOR))) $MARGIN -v +_within_tolerance "free blocks after all tests" $FREE_BLOCKS3 $((FREE_BLOCKS0 - (BLKS * 3 * BLKSZ_FACTOR))) $MARGIN -v + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/xfs/801.out b/tests/xfs/801.out new file mode 100644 index 0000000..4733f18 --- /dev/null +++ b/tests/xfs/801.out @@ -0,0 +1,27 @@ +QA output created by 801 +Format and mount +Create the original file and reflink to file2, file3 +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-801/file1 +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-801/file2 +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-801/file3 +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-801/file4 +CoW the reflink copies +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-801/file1 +c650f1cf6c9f07b22e3e21ec7d49ded5 SCRATCH_MNT/test-801/file2 +56ed2f712c91e035adeeb26ed105a982 SCRATCH_MNT/test-801/file3 +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-801/file4 +Defragment +SCRATCH_MNT/test-801/file1 --- +SCRATCH_MNT/test-801/file2 --- +SCRATCH_MNT/test-801/file3 --- +SCRATCH_MNT/test-801/file4 --- +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-801/file1 +c650f1cf6c9f07b22e3e21ec7d49ded5 SCRATCH_MNT/test-801/file2 +56ed2f712c91e035adeeb26ed105a982 SCRATCH_MNT/test-801/file3 +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-801/file4 +Check files +free blocks after creating some reflink copies is in range +free blocks after CoW some reflink copies is in range +free blocks after defragging all reflink copies is in range +free blocks after all tests is in range +Check scratch fs diff --git a/tests/xfs/802 b/tests/xfs/802 new file mode 100755 index 0000000..f63ef14 --- /dev/null +++ b/tests/xfs/802 @@ -0,0 +1,87 @@ +#! /bin/bash +# FS QA Test No. 802 +# +# Ensure that we can create enough distinct reflink entries to force creation +# of a multi-level refcount btree, and that metadump will successfully copy +# said block. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + umount "$SCRATCH_MNT" > /dev/null 2>&1 + rm -rf "$tmp".* "$TESTDIR" "$METADUMP_FILE" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_scratch_reflink + +rm -f "$seqres.full" + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" +METADUMP_FILE="$TEST_DIR/${seq}_metadump" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +NR_BLKS=$((4 * BLKSZ / 12)) +_pwrite_byte 0x61 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/file1" >> "$seqres.full" + +echo "Reflink every other block" +seq 1 $((NR_BLKS / 2)) | while read nr; do + _reflink_range "$TESTDIR/file1" $((nr * 2 * BLKSZ)) \ + "$TESTDIR/file2" $((nr * 2 * BLKSZ)) $BLKSZ >> "$seqres.full" +done + +echo "Create metadump file" +_scratch_unmount +_scratch_metadump "$METADUMP_FILE" + +# Now restore the obfuscated one back and take a look around +echo "Restore metadump" +xfs_mdrestore "$METADUMP_FILE" "$TEST_DIR/image" +_mount -t $FSTYP "$TEST_DIR/image" "$SCRATCH_MNT" +umount "$SCRATCH_MNT" + +echo "Check restored fs" +_check_generic_filesystem "$METADUMP_FILE" + +# success, all done +status=0 +exit diff --git a/tests/xfs/802.out b/tests/xfs/802.out new file mode 100644 index 0000000..ad2ef03 --- /dev/null +++ b/tests/xfs/802.out @@ -0,0 +1,6 @@ +QA output created by 802 +Create the original file blocks +Reflink every other block +Create metadump file +Restore metadump +Check restored fs diff --git a/tests/xfs/803 b/tests/xfs/803 new file mode 100755 index 0000000..4aed2e1 --- /dev/null +++ b/tests/xfs/803 @@ -0,0 +1,109 @@ +#! /bin/bash +# FS QA Test No. 803 +# +# Create and populate an XFS filesystem, corrupt the refcount btree, +# then see how the kernel and xfs_repair deal with it. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + #rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_scratch_reflink +_require_cp_reflink +test -n "${FORCE_FUZZ}" || _require_scratch_xfs_crc + +rm -f "$seqres.full" + +echo "+ create scratch fs" +_scratch_mkfs_xfs > /dev/null + +echo "+ mount fs image" +_scratch_mount +blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")" +agcount="$(xfs_info "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')" + +echo "+ make some files" +_pwrite_byte 0x62 0 $((blksz * 64)) "${SCRATCH_MNT}/file0" >> "$seqres.full" +_pwrite_byte 0x61 0 $((blksz * 64)) "${SCRATCH_MNT}/file1" >> "$seqres.full" +_cp_reflink "${SCRATCH_MNT}/file0" "${SCRATCH_MNT}/file2" +_cp_reflink "${SCRATCH_MNT}/file1" "${SCRATCH_MNT}/file3" +umount "${SCRATCH_MNT}" + +echo "+ check fs" +_scratch_xfs_repair -n >> "$seqres.full" 2>&1 || \ + _fail "xfs_repair should not fail" + +echo "+ corrupt image" +seq 0 $((agcount - 1)) | while read ag; do + $XFS_DB_PROG -x -c "agf ${ag}" -c "agf ${ag}" -c "addr refcntroot" \ + -c "stack" -c "blocktrash -x 4096 -y 4096 -z -n 8 -3" \ + "${SCRATCH_DEV}" >> "$seqres.full" 2>&1 +done + +echo "+ mount image" +_scratch_mount + +echo "+ reflink more" +_cp_reflink "${SCRATCH_MNT}/file1" "${SCRATCH_MNT}/file4" 2> /dev/null && \ + _fail "should not be able to reflink with busted refcount btree" +umount "${SCRATCH_MNT}" + +echo "+ repair fs" +_scratch_xfs_repair >> "$seqres.full" 2>&1 +_scratch_xfs_repair >> "$seqres.full" 2>&1 + +echo "+ mount image (2)" +_scratch_mount + +echo "+ chattr -R -i" +chattr -R -f -i "${SCRATCH_MNT}/" + +echo "+ reflink more (2)" +_cp_reflink "${SCRATCH_MNT}/file1" "${SCRATCH_MNT}/file5" || \ + _fail "modified refcount tree" +umount "${SCRATCH_MNT}" + +echo "+ check fs (2)" +_scratch_xfs_repair -n >> "$seqres.full" 2>&1 || \ + _fail "xfs_repair should not fail" + +status=0 +exit diff --git a/tests/xfs/803.out b/tests/xfs/803.out new file mode 100644 index 0000000..582682d --- /dev/null +++ b/tests/xfs/803.out @@ -0,0 +1,13 @@ +QA output created by 803 ++ create scratch fs ++ mount fs image ++ make some files ++ check fs ++ corrupt image ++ mount image ++ reflink more ++ repair fs ++ mount image (2) ++ chattr -R -i ++ reflink more (2) ++ check fs (2) diff --git a/tests/xfs/804 b/tests/xfs/804 new file mode 100755 index 0000000..c46a7a0 --- /dev/null +++ b/tests/xfs/804 @@ -0,0 +1,77 @@ +#! /bin/bash +# FS QA Test No. 804 +# +# Ensure that we can't reflink realtime files. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + umount "$SCRATCH_MNT" > /dev/null 2>&1 + rm -rf "$tmp".* "$TESTDIR" "$METADUMP_FILE" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +test -b "$TEST_RTDEV" || _notrun "Need TEST_RTDEV to run this test." +_require_scratch_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +_scratch_mkfs -r rtdev=$TEST_RTDEV >/dev/null 2>&1 +_scratch_mount -o rtdev=$TEST_RTDEV + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ=65536 +touch "$TESTDIR/file1" +$XFS_IO_PROG -c 'chattr +r' "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" + +echo "Reflink every other block" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" + +test -s "$TESTDIR/file2" && _fail "Should not be able to reflink a realtime file." + +echo "Check restored fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/xfs/804.out b/tests/xfs/804.out new file mode 100644 index 0000000..e69de29 diff --git a/tests/xfs/group b/tests/xfs/group index 8261f86..eccfb73 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -220,3 +220,8 @@ 303 auto quick quota 304 auto quick quota 305 auto quota +800 auto quick clone +801 auto quick clone +802 auto quick clone +803 fuzzers +804 auto quick clone From darrick.wong@oracle.com Wed Nov 11 13:28:15 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4038729E1F for ; Wed, 11 Nov 2015 13:28:15 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id AA424AC001 for ; Wed, 11 Nov 2015 11:28:14 -0800 (PST) X-ASG-Debug-ID: 1447270091-04cb6c296a1251d0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id vt89k7BugkesWE4O (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 11:28:11 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tABJRkS4031321 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 11 Nov 2015 19:27:46 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tABJRk42031163 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 11 Nov 2015 19:27:46 GMT Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tABJRkCe002302; Wed, 11 Nov 2015 19:27:46 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Nov 2015 11:27:46 -0800 Subject: [PATCH 11/11] reflink: test that CoW writes fail when we're out of space From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 11/11] reflink: test that CoW writes fail when we're out of space To: hch@infradead.org, david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Wed, 11 Nov 2015 11:27:44 -0800 Message-ID: <20151111192744.15056.4781.stgit@birch.djwong.org> In-Reply-To: <20151111192628.15056.6451.stgit@birch.djwong.org> References: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447270091 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24309 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Ensure that copy-on-writing a reflinked file when there's no free disk space reflects the desired ENOSPC back to userspace during the write call. Tests the buffered IO, direct IO, and mmap write paths. Signed-off-by: Darrick J. Wong --- common/rc | 2 - tests/generic/842 | 107 ++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/842.out | 10 ++++ tests/generic/843 | 107 ++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/843.out | 10 ++++ tests/generic/844 | 109 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/844.out | 8 ++++ tests/generic/845 | 107 ++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/845.out | 10 ++++ tests/generic/group | 4 ++ 10 files changed, 473 insertions(+), 1 deletion(-) create mode 100755 tests/generic/842 create mode 100644 tests/generic/842.out create mode 100755 tests/generic/843 create mode 100644 tests/generic/843.out create mode 100755 tests/generic/844 create mode 100644 tests/generic/844.out create mode 100755 tests/generic/845 create mode 100644 tests/generic/845.out diff --git a/common/rc b/common/rc index c016673..474fa84 100644 --- a/common/rc +++ b/common/rc @@ -101,7 +101,7 @@ _mwrite_byte() { mmap_len="$4" file="$5" - "$XFS_IO_PROG" -f -c "mmap -rw 0 $mmap_len" -c "pwrite -S $pattern $offset $len" "$file" + "$XFS_IO_PROG" -f -c "mmap -rw 0 $mmap_len" -c "mwrite -S $pattern $offset $len" "$file" } # ls -l w/ selinux sometimes puts a dot at the end: diff --git a/tests/generic/842 b/tests/generic/842 new file mode 100755 index 0000000..5eda56b --- /dev/null +++ b/tests/generic/842 @@ -0,0 +1,107 @@ +#! /bin/bash +# FS QA Test No. 842 +# +# Reflink a file, use up the rest of the space, then try to observe ENOSPC +# while copy-on-writing the file via the page cache. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Reformat with appropriate size" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +NR_BLKS=10240 +umount "$SCRATCH_MNT" +SZ_BYTES=$((NR_BLKS * 8 * BLKSZ)) +if [ $SZ_BYTES -lt $((32 * 1048576)) ]; then + SZ_BYTES=$((32 * 1048576)) +fi +_scratch_mkfs_sized $SZ_BYTES >> "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create a big file and reflink it" +_pwrite_byte 0x61 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" >> "$seqres.full" 2>&1 +_cp_reflink "$TESTDIR/bigfile" "$TESTDIR/clonefile" +sync + +echo "Allocate the rest of the space" +NR_FREE="$(stat -f -c '%f' "$TESTDIR")" +touch "$TESTDIR/file0" "$TESTDIR/file1" +_pwrite_byte 0x61 0 $((BLKSZ * NR_FREE)) "$TESTDIR/eat_my_space" >> "$seqres.full" 2>&1 +sync + +echo "CoW the big file" +out="$(_pwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" 2>&1)" +echo "${out}" | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" +echo "${out}" >> "$seqres.full" 2>&1 +echo "${out}" + +echo "Remount and try CoW again" +_scratch_remount + +out="$(_pwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" 2>&1)" +echo "${out}" | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" +echo "${out}" >> "$seqres.full" 2>&1 +echo "${out}" + +#filefrag -v $TESTDIR/bigfile +#filefrag -v $TESTDIR/clonefile + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/842.out b/tests/generic/842.out new file mode 100644 index 0000000..df58025 --- /dev/null +++ b/tests/generic/842.out @@ -0,0 +1,10 @@ +QA output created by 842 +Format and mount +Reformat with appropriate size +Create a big file and reflink it +Allocate the rest of the space +CoW the big file +pwrite64: No space left on device +Remount and try CoW again +pwrite64: No space left on device +Check scratch fs diff --git a/tests/generic/843 b/tests/generic/843 new file mode 100755 index 0000000..03dc570 --- /dev/null +++ b/tests/generic/843 @@ -0,0 +1,107 @@ +#! /bin/bash +# FS QA Test No. 843 +# +# Reflink a file that uses more than half of the space, then try to observe +# ENOSPC while copy-on-writing the file via the page cache. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Reformat with appropriate size" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +NR_BLKS=10240 +umount "$SCRATCH_MNT" +SZ_BYTES=$((NR_BLKS * 3 / 2 * BLKSZ)) +if [ $SZ_BYTES -lt $((32 * 1048576)) ]; then + SZ_BYTES=$((32 * 1048576)) +fi +_scratch_mkfs_sized $SZ_BYTES >> "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create a big file and reflink it" +_pwrite_byte 0x61 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" >> "$seqres.full" 2>&1 +_cp_reflink "$TESTDIR/bigfile" "$TESTDIR/clonefile" +sync + +echo "Allocate the rest of the space" +NR_FREE="$(stat -f -c '%f' "$TESTDIR")" +touch "$TESTDIR/file0" "$TESTDIR/file1" +_pwrite_byte 0x61 0 $((BLKSZ * NR_FREE)) "$TESTDIR/eat_my_space" >> "$seqres.full" 2>&1 +sync + +echo "CoW the big file" +out="$(_pwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" 2>&1)" +echo "${out}" | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" +echo "${out}" >> "$seqres.full" 2>&1 +echo "${out}" + +echo "Remount and try CoW again" +_scratch_remount + +out="$(_pwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" 2>&1)" +echo "${out}" | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" +echo "${out}" >> "$seqres.full" 2>&1 +echo "${out}" + +#filefrag -v $TESTDIR/bigfile +#filefrag -v $TESTDIR/clonefile + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/843.out b/tests/generic/843.out new file mode 100644 index 0000000..43c1cf6 --- /dev/null +++ b/tests/generic/843.out @@ -0,0 +1,10 @@ +QA output created by 843 +Format and mount +Reformat with appropriate size +Create a big file and reflink it +Allocate the rest of the space +CoW the big file +pwrite64: No space left on device +Remount and try CoW again +pwrite64: No space left on device +Check scratch fs diff --git a/tests/generic/844 b/tests/generic/844 new file mode 100755 index 0000000..70bc235 --- /dev/null +++ b/tests/generic/844 @@ -0,0 +1,109 @@ +#! /bin/bash +# FS QA Test No. 844 +# +# Reflink a file, use up the rest of the space, then try to observe ENOSPC +# while copy-on-writing the file via mmap. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Reformat with appropriate size" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +NR_BLKS=10240 +umount "$SCRATCH_MNT" +SZ_BYTES=$((NR_BLKS * 8 * BLKSZ)) +if [ $SZ_BYTES -lt $((32 * 1048576)) ]; then + SZ_BYTES=$((32 * 1048576)) +fi +_scratch_mkfs_sized $SZ_BYTES >> "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create a big file and reflink it" +_pwrite_byte 0x61 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" >> "$seqres.full" 2>&1 +_cp_reflink "$TESTDIR/bigfile" "$TESTDIR/clonefile" +sync + +echo "Allocate the rest of the space" +NR_FREE="$(stat -f -c '%f' "$TESTDIR")" +touch "$TESTDIR/file0" "$TESTDIR/file1" +_pwrite_byte 0x61 0 $((BLKSZ * NR_FREE)) "$TESTDIR/eat_my_space" >> "$seqres.full" 2>&1 +sync + +echo "mmap CoW the big file" +out="$(_mwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" 2>&1)" +err="$?" +if [ "$err" -lt 128 ]; then + echo "mmap CoW should have failed with SIGBUS, got SIG$(kill -l $err)" +fi + +echo "Remount and try CoW again" +_scratch_remount + +out="$(_mwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" 2>&1)" +err="$?" +if [ "$err" -lt 128 ]; then + echo "mmap CoW should have failed with SIGBUS, got SIG$(kill -l $err)" +fi + +#filefrag -v $TESTDIR/bigfile +#filefrag -v $TESTDIR/clonefile + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/844.out b/tests/generic/844.out new file mode 100644 index 0000000..130afc1 --- /dev/null +++ b/tests/generic/844.out @@ -0,0 +1,8 @@ +QA output created by 844 +Format and mount +Reformat with appropriate size +Create a big file and reflink it +Allocate the rest of the space +mmap CoW the big file +Remount and try CoW again +Check scratch fs diff --git a/tests/generic/845 b/tests/generic/845 new file mode 100755 index 0000000..5efaf38 --- /dev/null +++ b/tests/generic/845 @@ -0,0 +1,107 @@ +#! /bin/bash +# FS QA Test No. 845 +# +# Reflink a file, use up the rest of the space, then try to observe ENOSPC +# while copy-on-writing the file via direct-io. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Reformat with appropriate size" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +NR_BLKS=10240 +umount "$SCRATCH_MNT" +SZ_BYTES=$((NR_BLKS * 8 * BLKSZ)) +if [ $SZ_BYTES -lt $((32 * 1048576)) ]; then + SZ_BYTES=$((32 * 1048576)) +fi +_scratch_mkfs_sized $SZ_BYTES >> "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create a big file and reflink it" +_pwrite_byte 0x61 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" >> "$seqres.full" 2>&1 +_cp_reflink "$TESTDIR/bigfile" "$TESTDIR/clonefile" +sync + +echo "Allocate the rest of the space" +NR_FREE="$(stat -f -c '%f' "$TESTDIR")" +touch "$TESTDIR/file0" "$TESTDIR/file1" +_pwrite_byte 0x61 0 $((BLKSZ * NR_FREE)) "$TESTDIR/eat_my_space" >> "$seqres.full" 2>&1 +sync + +echo "CoW the big file" +out="$(_pwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" -d 2>&1)" +echo "${out}" | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" +echo "${out}" >> "$seqres.full" 2>&1 +echo "${out}" + +echo "Remount and try CoW again" +_scratch_remount + +out="$(_pwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" -d 2>&1)" +echo "${out}" | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" +echo "${out}" >> "$seqres.full" 2>&1 +echo "${out}" + +#filefrag -v $TESTDIR/bigfile +#filefrag -v $TESTDIR/clonefile + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/845.out b/tests/generic/845.out new file mode 100644 index 0000000..d367a73 --- /dev/null +++ b/tests/generic/845.out @@ -0,0 +1,10 @@ +QA output created by 845 +Format and mount +Reformat with appropriate size +Create a big file and reflink it +Allocate the rest of the space +CoW the big file +pwrite64: No space left on device +Remount and try CoW again +pwrite64: No space left on device +Check scratch fs diff --git a/tests/generic/group b/tests/generic/group index eef608f..e184473 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -249,4 +249,8 @@ 839 auto quick clone 840 clone_stress 841 clone_stress +842 auto quick clone +843 auto quick clone +844 auto quick clone +845 auto quick clone 846 auto quick clone From sandeen@sandeen.net Wed Nov 11 15:53:07 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5FB427FBF for ; Wed, 11 Nov 2015 15:53:07 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 285BB8F8033 for ; Wed, 11 Nov 2015 13:53:03 -0800 (PST) X-ASG-Debug-ID: 1447278776-04bdf03f03125d10001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 9ELWKwXzqVuPTqWC for ; Wed, 11 Nov 2015 13:52:56 -0800 (PST) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 75E9761F88CD for ; Wed, 11 Nov 2015 15:52:56 -0600 (CST) To: xfs@oss.sgi.com From: Eric Sandeen Subject: [PATCH] xfs_fsr: more selinux fixes X-Enigmail-Draft-Status: N1110 X-ASG-Orig-Subj: [PATCH] xfs_fsr: more selinux fixes Message-ID: <5643B8B7.9030708@sandeen.net> Date: Wed, 11 Nov 2015 15:52:55 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1447278776 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24313 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Commit: 1adfe5c xfs_fsr: fix SWAPEXT failures under selinux attempted to fix up the fork offset under selinux, where the temp file is created with a local attribute, but the target file has remote attributes; this can lead to a smaller data area in the temp inode, without enough room to swap extents from the target inode. I remedied this by pushing the temp file attribute to remote, but *only* if the target file's attr was also remote. However, I have a case from the field where the parent dir and the target file both have a context of: system_u:object_r:samba_share_t:s0 but new files created in the dir have a context of unconfined_u:object_r:samba_share_t:s0 This means the temp file has a smaller forkoff, and less space in the inode for data, so we fail to swap the extents between the two, because they don't fit. The following patch fixes this by allowing xfs_fsr to kick the tempfile's attr out of local format even if the target file's attr is local, if this will move the forkoff in the right direction. This does pass all our fsr xfstests, though I'm not sure we have any real coverage of fsr under selinux... The only functional change is the test at the very end of the patch; the rest is comments, ascii art, and removing the now-extraneous XFS_IOC_FSGETXATTRA ioctl. Signed-off-by: Eric Sandeen --- diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c index c8ef18f..68b9819 100644 --- a/fsr/xfs_fsr.c +++ b/fsr/xfs_fsr.c @@ -1104,14 +1104,12 @@ fsr_setup_attr_fork( } continue; } else if (i == 0) { - struct fsxattr fsx; /* * First pass, and temp file already has an inline * xattr, probably due to selinux. * * It's *possible* that the temp file attr area - * is larger than the target file's, if the - * target file's attrs are not inline: + * is larger than the target file's: * * Target Temp * +-------+ 0 +-------+ 0 @@ -1121,28 +1119,18 @@ fsr_setup_attr_fork( * | | v-------v forkoff * | | | | * v-------v forkoff | Attr | local - * | Attr | ext/btree | | + * | Attr | | | * +-------+ +-------+ - * - * FSGETXATTRA will tell us nr of attr extents in - * target, if any. If none, it's local: */ - memset(&fsx, 0, sizeof(fsx)); - if (ioctl(fd, XFS_IOC_FSGETXATTRA, &fsx)) { - fsrprintf(_("FSGETXATTRA failed on target\n")); - return -1; - } - /* - * If target attr area is less than the temp's (diff < 0) - * and the target is not local, write a big attr to - * the temp file to knock the attr out of local format, - * to match the target. (This should actually *increase* - * the temp file's forkoffset when the attr moves out - * of the inode) + * If target attr area is less than the temp's + * (diff < 0), write a big attr to the temp file to knock + * the attr out of local format. + * (This should actually *increase* the temp file's + * forkoffset when the attr moves out of the inode) */ - if (diff < 0 && fsx.fsx_nextents > 0) { + if (diff < 0) { char val[2048]; memset(val, 'X', 2048); if (fsetxattr(tfd, name, val, 2048, 0)) { From sandeen@redhat.com Wed Nov 11 16:13:28 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id EFE7F7FB2 for ; Wed, 11 Nov 2015 16:13:27 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 51888AC003 for ; Wed, 11 Nov 2015 14:13:24 -0800 (PST) X-ASG-Debug-ID: 1447279998-04cbb02424133500001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 0X7gMgE0tKeaJaCE (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 14:13:19 -0800 (PST) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id BD1E3C06C9C0 for ; Wed, 11 Nov 2015 22:13:18 +0000 (UTC) Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tABMDHY9022497 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 11 Nov 2015 17:13:18 -0500 To: xfs@oss.sgi.com From: Eric Sandeen Subject: [PATCH] xfs: print name of verifier if it fails Message-ID: <5643BD7D.4000307@redhat.com> X-ASG-Orig-Subj: [PATCH] xfs: print name of verifier if it fails Date: Wed, 11 Nov 2015 16:13:17 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447279999 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 This adds a name to each buf_ops structure, so that if a verifier fails we can print the type of verifier that failed it. Should be a slight debugging aid, I hope. Signed-off-by: Eric Sandeen --- diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index 3479294..e1e7fe3 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -535,6 +535,7 @@ xfs_agfl_write_verify( } const struct xfs_buf_ops xfs_agfl_buf_ops = { + .name = "xfs_agfl", .verify_read = xfs_agfl_read_verify, .verify_write = xfs_agfl_write_verify, }; @@ -2339,6 +2340,7 @@ xfs_agf_write_verify( } const struct xfs_buf_ops xfs_agf_buf_ops = { + .name = "xfs_agf", .verify_read = xfs_agf_read_verify, .verify_write = xfs_agf_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_alloc_btree.c b/fs/xfs/libxfs/xfs_alloc_btree.c index 90de071..eb8bbfe 100644 --- a/fs/xfs/libxfs/xfs_alloc_btree.c +++ b/fs/xfs/libxfs/xfs_alloc_btree.c @@ -379,6 +379,7 @@ xfs_allocbt_write_verify( } const struct xfs_buf_ops xfs_allocbt_buf_ops = { + .name = "xfs_allocbt", .verify_read = xfs_allocbt_read_verify, .verify_write = xfs_allocbt_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index aa187f7..01a5ecf 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -328,6 +328,7 @@ xfs_attr3_leaf_read_verify( } const struct xfs_buf_ops xfs_attr3_leaf_buf_ops = { + .name = "xfs_attr3_leaf", .verify_read = xfs_attr3_leaf_read_verify, .verify_write = xfs_attr3_leaf_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c index 5ab95ff..f3ed9bf 100644 --- a/fs/xfs/libxfs/xfs_attr_remote.c +++ b/fs/xfs/libxfs/xfs_attr_remote.c @@ -201,6 +201,7 @@ xfs_attr3_rmt_write_verify( } const struct xfs_buf_ops xfs_attr3_rmt_buf_ops = { + .name = "xfs_attr3_rmt", .verify_read = xfs_attr3_rmt_read_verify, .verify_write = xfs_attr3_rmt_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c index 6b0cf65..1637c37 100644 --- a/fs/xfs/libxfs/xfs_bmap_btree.c +++ b/fs/xfs/libxfs/xfs_bmap_btree.c @@ -720,6 +720,7 @@ xfs_bmbt_write_verify( } const struct xfs_buf_ops xfs_bmbt_buf_ops = { + .name = "xfs_bmbt", .verify_read = xfs_bmbt_read_verify, .verify_write = xfs_bmbt_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c index e89a0f8..097bf77 100644 --- a/fs/xfs/libxfs/xfs_da_btree.c +++ b/fs/xfs/libxfs/xfs_da_btree.c @@ -245,6 +245,7 @@ xfs_da3_node_read_verify( } const struct xfs_buf_ops xfs_da3_node_buf_ops = { + .name = "xfs_da3_node", .verify_read = xfs_da3_node_read_verify, .verify_write = xfs_da3_node_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c index 9c10e2b..aa17cb7 100644 --- a/fs/xfs/libxfs/xfs_dir2_block.c +++ b/fs/xfs/libxfs/xfs_dir2_block.c @@ -123,6 +123,7 @@ xfs_dir3_block_write_verify( } const struct xfs_buf_ops xfs_dir3_block_buf_ops = { + .name = "xfs_dir3_block", .verify_read = xfs_dir3_block_read_verify, .verify_write = xfs_dir3_block_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_dir2_data.c b/fs/xfs/libxfs/xfs_dir2_data.c index af71a84..725fc78 100644 --- a/fs/xfs/libxfs/xfs_dir2_data.c +++ b/fs/xfs/libxfs/xfs_dir2_data.c @@ -305,11 +305,13 @@ xfs_dir3_data_write_verify( } const struct xfs_buf_ops xfs_dir3_data_buf_ops = { + .name = "xfs_dir3_data", .verify_read = xfs_dir3_data_read_verify, .verify_write = xfs_dir3_data_write_verify, }; static const struct xfs_buf_ops xfs_dir3_data_reada_buf_ops = { + .name = "xfs_dir3_data_reada", .verify_read = xfs_dir3_data_reada_verify, .verify_write = xfs_dir3_data_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_dir2_leaf.c b/fs/xfs/libxfs/xfs_dir2_leaf.c index 3923e1f..b887fb2 100644 --- a/fs/xfs/libxfs/xfs_dir2_leaf.c +++ b/fs/xfs/libxfs/xfs_dir2_leaf.c @@ -245,11 +245,13 @@ xfs_dir3_leafn_write_verify( } const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops = { + .name = "xfs_dir3_leaf1", .verify_read = xfs_dir3_leaf1_read_verify, .verify_write = xfs_dir3_leaf1_write_verify, }; const struct xfs_buf_ops xfs_dir3_leafn_buf_ops = { + .name = "xfs_dir3_leafn", .verify_read = xfs_dir3_leafn_read_verify, .verify_write = xfs_dir3_leafn_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c index 70b0cb2..63ee03d 100644 --- a/fs/xfs/libxfs/xfs_dir2_node.c +++ b/fs/xfs/libxfs/xfs_dir2_node.c @@ -150,6 +150,7 @@ xfs_dir3_free_write_verify( } const struct xfs_buf_ops xfs_dir3_free_buf_ops = { + .name = "xfs_dir3_free", .verify_read = xfs_dir3_free_read_verify, .verify_write = xfs_dir3_free_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_dquot_buf.c b/fs/xfs/libxfs/xfs_dquot_buf.c index 5331b7f..11cefb2 100644 --- a/fs/xfs/libxfs/xfs_dquot_buf.c +++ b/fs/xfs/libxfs/xfs_dquot_buf.c @@ -282,6 +282,7 @@ xfs_dquot_buf_write_verify( } const struct xfs_buf_ops xfs_dquot_buf_ops = { + .name = "xfs_dquot", .verify_read = xfs_dquot_buf_read_verify, .verify_write = xfs_dquot_buf_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c index 70c1db9..66d702e 100644 --- a/fs/xfs/libxfs/xfs_ialloc.c +++ b/fs/xfs/libxfs/xfs_ialloc.c @@ -2572,6 +2572,7 @@ xfs_agi_write_verify( } const struct xfs_buf_ops xfs_agi_buf_ops = { + .name = "xfs_agi", .verify_read = xfs_agi_read_verify, .verify_write = xfs_agi_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c index f39b285..6dd44f9 100644 --- a/fs/xfs/libxfs/xfs_ialloc_btree.c +++ b/fs/xfs/libxfs/xfs_ialloc_btree.c @@ -304,6 +304,7 @@ xfs_inobt_write_verify( } const struct xfs_buf_ops xfs_inobt_buf_ops = { + .name = "xfs_inobt", .verify_read = xfs_inobt_read_verify, .verify_write = xfs_inobt_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c index 268c00f..1b8d98a 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.c +++ b/fs/xfs/libxfs/xfs_inode_buf.c @@ -132,11 +132,13 @@ xfs_inode_buf_write_verify( } const struct xfs_buf_ops xfs_inode_buf_ops = { + .name = "xfs_inode", .verify_read = xfs_inode_buf_read_verify, .verify_write = xfs_inode_buf_write_verify, }; const struct xfs_buf_ops xfs_inode_buf_ra_ops = { + .name = "xxfs_inode_ra", .verify_read = xfs_inode_buf_readahead_verify, .verify_write = xfs_inode_buf_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index a0b071d..8a53eaa 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -679,11 +679,13 @@ xfs_sb_write_verify( } const struct xfs_buf_ops xfs_sb_buf_ops = { + .name = "xfs_sb", .verify_read = xfs_sb_read_verify, .verify_write = xfs_sb_write_verify, }; const struct xfs_buf_ops xfs_sb_quiet_buf_ops = { + .name = "xfs_sb_quiet", .verify_read = xfs_sb_quiet_read_verify, .verify_write = xfs_sb_write_verify, }; diff --git a/fs/xfs/libxfs/xfs_symlink_remote.c b/fs/xfs/libxfs/xfs_symlink_remote.c index cb6fd20..2e2c671 100644 --- a/fs/xfs/libxfs/xfs_symlink_remote.c +++ b/fs/xfs/libxfs/xfs_symlink_remote.c @@ -168,6 +168,7 @@ xfs_symlink_write_verify( } const struct xfs_buf_ops xfs_symlink_buf_ops = { + .name = "xfs_symlink", .verify_read = xfs_symlink_read_verify, .verify_write = xfs_symlink_write_verify, }; diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index c79b717..c75721a 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -132,6 +132,7 @@ struct xfs_buf_map { struct xfs_buf_map (map) = { .bm_bn = (blkno), .bm_len = (numblk) }; struct xfs_buf_ops { + char *name; void (*verify_read)(struct xfs_buf *); void (*verify_write)(struct xfs_buf *); }; diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c index 74d0e59..88693a9 100644 --- a/fs/xfs/xfs_error.c +++ b/fs/xfs/xfs_error.c @@ -164,9 +164,9 @@ xfs_verifier_error( { struct xfs_mount *mp = bp->b_target->bt_mount; - xfs_alert(mp, "Metadata %s detected at %pF, block 0x%llx", + xfs_alert(mp, "Metadata %s detected at %pF, %s block 0x%llx", bp->b_error == -EFSBADCRC ? "CRC error" : "corruption", - __return_address, bp->b_bn); + __return_address, bp->b_ops->name, bp->b_bn); xfs_alert(mp, "Unmount and run xfs_repair"); From david@fromorbit.com Wed Nov 11 16:13:38 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 65D7F29E06 for ; Wed, 11 Nov 2015 16:13:38 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3D1D48F804B for ; Wed, 11 Nov 2015 14:13:38 -0800 (PST) X-ASG-Debug-ID: 1447280014-04cbb02424133560001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id nAFdfFTps3AZRiB9 for ; Wed, 11 Nov 2015 14:13:35 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2ChCAAsvENWPIYELHleKAECgxBTb4ZdpCgCChIGgQ2KJYUshA0ZhXEEAoFLTQEBAQEBAQcBAQEBQT+EYhMcIxgkNAUlAwctiC3FJRmFdI5+BYdEhVeJLYUdiAGBY4RAgyWFJ4UKiFSCdB2Baio0hA4lgSMBAQE Received: from ppp121-44-4-134.lns20.syd4.internode.on.net (HELO dastard) ([121.44.4.134]) by ipmail04.adl6.internode.on.net with ESMTP; 12 Nov 2015 08:43:33 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zwde0-00038V-Vu; Thu, 12 Nov 2015 09:13:33 +1100 Date: Thu, 12 Nov 2015 09:13:32 +1100 From: Dave Chinner To: torvalds@linux-foundation.org Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: [GIT PULL] xfs: updates for 4.4-rc1 Message-ID: <20151111221332.GI14311@dastard> X-ASG-Orig-Subj: [GIT PULL] xfs: updates for 4.4-rc1 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1447280014 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24313 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Hi Linus, Can you please pull the XFS changes from the tag below? There is nothing really major here - the only significant addition is the per-mount operation statistics infrastructure. Otherwises there's various ACL, xattr, DAX, AIO and logging fixes, and a smattering of small cleanups and fixes elsewhere. -Dave. The following changes since commit 1f93e4a96c9109378204c147b3eec0d0e8100fde: Linux 4.3-rc2 (2015-09-20 14:32:34 -0700) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git tags/xfs-for-linus-4.4 for you to fetch changes up to 4e14e49a91e18098fd8ef30743972e0c3cb727c1: Merge branch 'xfs-misc-fixes-for-4.4-3' into for-next (2015-11-10 10:20:48 +1100) ---------------------------------------------------------------- xfs: updates for 4.4-rc1 This update contains: o per-mount operational statistics in sysfs o fixes for concurrent aio append write submission o various logging fixes o detection of zeroed logs and invalid log sequence numbers on v5 filesystems o memory allocation failure message improvements o a bunch of xattr/ACL fixes o fdatasync optimisation o miscellaneous other fixes and cleanups ---------------------------------------------------------------- Andreas Gruenbacher (4): xfs: Validate the length of on-disk ACLs xfs: Plug memory leak in xfs_attrmulti_attr_set xfs: invalidate cached acl if set via ioctl xfs: Fix error path in xfs_get_acl Bill O'Donnell (7): xfs: create global stats and stats_clear in sysfs xfs: create symlink proc/fs/xfs/stat to sys/fs/xfs/stats xfs: remove unused procfs code xfs: consolidate sysfs ops xfs: pass xfsstats structures to handlers and macros xfs: per-filesystem stats in sysfs xfs: per-filesystem stats counter implementation Brian Foster (8): xfs: add missing ilock around dio write last extent alignment xfs: log local to remote symlink conversions correctly on v5 supers xfs: validate metadata LSNs against log on v5 superblocks xfs: always drain dio before extending aio write submission xfs: add an xfs_zero_eof() tracepoint xfs: pass total block res. as total xfs_bmapi_write() parameter xfs: invalidate cached acl if set directly via xattr xfs: fix log recovery op header validation assert Chris Mason (1): xfs: give all workqueues rescuer threads Dan Carpenter (1): xfs: fix an error code in xfs_fs_fill_super() Darrick J. Wong (1): xfs: don't leak uuid table on rmmod Dave Chinner (15): Merge branch 'xfs-logging-fixes' into for-next Merge branch 'xfs-io-fixes' into for-next Merge branch 'xfs-misc-fixes-for-4.4-1' into for-next xfs: stats are no longer dependent on CONFIG_PROC_FS Merge branch 'xfs-stats-fixes' into for-next xfs: fix inode size update overflow in xfs_map_direct() xfs: introduce BMAPI_ZERO for allocating zeroed extents xfs: Don't use unwritten extents for DAX xfs: DAX does not use IO completion callbacks xfs: add ->pfn_mkwrite support for DAX xfs: xfs_filemap_pmd_fault treats read faults as write faults xfs: optimise away log forces on timestamp updates for fdatasync Merge branch 'xfs-misc-fixes-for-4.4-2' into for-next Merge branch 'xfs-dax-updates' into for-next Merge branch 'xfs-misc-fixes-for-4.4-3' into for-next Eric Sandeen (3): xfs: avoid null *src in memcpy call in xlog_write xfs: more info from kmem deadlocks and high-level error msgs xfs: simplify /proc teardown & error handling Geliang Tang (1): libxfs: fix two comment typos Jan Tulak (2): xfs: prefix XATTR_LIST_MAX with XFS_ xfs: avoid dependency on Linux XATTR_SIZE_MAX Jiri Kosina (1): xfs: clear PF_NOFREEZE for xfsaild kthread Tetsuo Handa (1): xfs: Print name and pid when memory allocation loops Zhaohongjiang (1): cancel the setfilesize transation when io error happen fs/dax.c | 5 + fs/xfs/Makefile | 2 +- fs/xfs/kmem.c | 10 +- fs/xfs/libxfs/xfs_alloc.c | 30 ++++-- fs/xfs/libxfs/xfs_alloc.h | 8 +- fs/xfs/libxfs/xfs_attr.c | 6 +- fs/xfs/libxfs/xfs_attr_leaf.c | 3 + fs/xfs/libxfs/xfs_attr_remote.c | 2 +- fs/xfs/libxfs/xfs_bmap.c | 65 +++++++++---- fs/xfs/libxfs/xfs_bmap.h | 13 ++- fs/xfs/libxfs/xfs_btree.c | 21 +++- fs/xfs/libxfs/xfs_btree.h | 39 ++++---- fs/xfs/libxfs/xfs_da_btree.c | 4 + fs/xfs/libxfs/xfs_dir2.c | 6 +- fs/xfs/libxfs/xfs_dir2_block.c | 3 + fs/xfs/libxfs/xfs_dir2_data.c | 3 + fs/xfs/libxfs/xfs_dir2_leaf.c | 3 + fs/xfs/libxfs/xfs_dir2_node.c | 3 + fs/xfs/libxfs/xfs_format.h | 18 +++- fs/xfs/libxfs/xfs_fs.h | 10 ++ fs/xfs/libxfs/xfs_ialloc.c | 10 +- fs/xfs/libxfs/xfs_sb.c | 10 ++ fs/xfs/libxfs/xfs_symlink_remote.c | 7 ++ fs/xfs/xfs_acl.c | 14 ++- fs/xfs/xfs_acl.h | 4 +- fs/xfs/xfs_aops.c | 119 ++++++++++++----------- fs/xfs/xfs_aops.h | 3 +- fs/xfs/xfs_attr_list.c | 2 +- fs/xfs/xfs_bmap_util.c | 38 +++++++- fs/xfs/xfs_buf.c | 21 ++-- fs/xfs/xfs_dir2_readdir.c | 2 +- fs/xfs/xfs_dquot.c | 14 +-- fs/xfs/xfs_file.c | 114 +++++++++++++++++----- fs/xfs/xfs_icache.c | 18 ++-- fs/xfs/xfs_inode.c | 8 +- fs/xfs/xfs_inode_item.c | 1 + fs/xfs/xfs_inode_item.h | 1 + fs/xfs/xfs_ioctl.c | 23 +++-- fs/xfs/xfs_ioctl32.c | 2 +- fs/xfs/xfs_iomap.c | 70 ++++++++++---- fs/xfs/xfs_iops.c | 4 +- fs/xfs/xfs_linux.h | 7 ++ fs/xfs/xfs_log.c | 93 ++++++++++++++---- fs/xfs/xfs_log.h | 1 + fs/xfs/xfs_log_priv.h | 51 ++++++++++ fs/xfs/xfs_log_recover.c | 14 ++- fs/xfs/xfs_message.c | 7 ++ fs/xfs/xfs_mount.c | 21 +++- fs/xfs/xfs_mount.h | 5 + fs/xfs/xfs_pnfs.c | 5 + fs/xfs/xfs_qm.c | 14 +-- fs/xfs/xfs_stats.c | 93 +++++++++--------- fs/xfs/xfs_stats.h | 36 ++++--- fs/xfs/xfs_super.c | 57 ++++++++--- fs/xfs/xfs_sysctl.c | 15 +-- fs/xfs/xfs_sysfs.c | 185 +++++++++++++++++++++--------------- fs/xfs/xfs_sysfs.h | 1 + fs/xfs/xfs_trace.h | 2 + fs/xfs/xfs_trans.c | 6 +- fs/xfs/xfs_trans_ail.c | 13 +-- fs/xfs/xfs_trans_inode.c | 9 ++ fs/xfs/xfs_xattr.c | 31 +++++- 62 files changed, 994 insertions(+), 411 deletions(-) -- Dave Chinner david@fromorbit.com From sandeen@redhat.com Wed Nov 11 16:15:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9E0B47FC1 for ; 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Wed, 11 Nov 2015 17:15:42 -0500 To: xfs@oss.sgi.com From: Eric Sandeen Subject: [PATCH] xfsprogs: print name of verifier if it fails Message-ID: <5643BE0D.5030805@redhat.com> X-ASG-Orig-Subj: [PATCH] xfsprogs: print name of verifier if it fails Date: Wed, 11 Nov 2015 16:15:41 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447280142 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 This adds a name to each buf_ops structure, so that if a verifier fails we can print the type of verifier that failed it. Should be a slight debugging aid, I hope. Signed-off-by: Eric Sandeen --- diff --git a/db/attr.c b/db/attr.c index 5e69100..e26ac67 100644 --- a/db/attr.c +++ b/db/attr.c @@ -570,6 +570,7 @@ xfs_attr3_db_write_verify( } const struct xfs_buf_ops xfs_attr3_db_buf_ops = { + .name = "xfs_attr3", .verify_read = xfs_attr3_db_read_verify, .verify_write = xfs_attr3_db_write_verify, }; diff --git a/db/dir2.c b/db/dir2.c index cc76662..533f705 100644 --- a/db/dir2.c +++ b/db/dir2.c @@ -1037,6 +1037,7 @@ xfs_dir3_db_write_verify( } const struct xfs_buf_ops xfs_dir3_db_buf_ops = { + .name = "xfs_dir3", .verify_read = xfs_dir3_db_read_verify, .verify_write = xfs_dir3_db_write_verify, }; diff --git a/db/metadump.c b/db/metadump.c index e503d6f..8cdcb92 100644 --- a/db/metadump.c +++ b/db/metadump.c @@ -221,7 +221,8 @@ write_buf( bp->b_ops->verify_write(bp); if (bp->b_error) { print_warning( - "obfuscation corrupted block at bno 0x%llx/0x%x", + "obfuscation corrupted block at %s bno 0x%llx/0x%x", + bp->b_ops->name, (long long)bp->b_bn, bp->b_bcount); } } diff --git a/libxfs/libxfs_io.h b/libxfs/libxfs_io.h index 38b4c6f..86b18a0 100644 --- a/libxfs/libxfs_io.h +++ b/libxfs/libxfs_io.h @@ -52,6 +52,7 @@ struct xfs_buf_map { struct xfs_buf_map (map) = { .bm_bn = (blkno), .bm_len = (numblk) }; struct xfs_buf_ops { + char *name; void (*verify_read)(struct xfs_buf *); void (*verify_write)(struct xfs_buf *); }; diff --git a/libxfs/rdwr.c b/libxfs/rdwr.c index c19070f..0804285 100644 --- a/libxfs/rdwr.c +++ b/libxfs/rdwr.c @@ -1075,8 +1075,9 @@ libxfs_writebufr(xfs_buf_t *bp) bp->b_ops->verify_write(bp); if (bp->b_error) { fprintf(stderr, - _("%s: write verifer failed on bno 0x%llx/0x%x\n"), - __func__, (long long)bp->b_bn, bp->b_bcount); + _("%s: write verifer failed on %s bno 0x%llx/0x%x\n"), + __func__, bp->b_ops->name, + (long long)bp->b_bn, bp->b_bcount); return bp->b_error; } } diff --git a/libxfs/util.c b/libxfs/util.c index 6192e6c..0609ba4 100644 --- a/libxfs/util.c +++ b/libxfs/util.c @@ -725,9 +725,9 @@ void xfs_verifier_error( struct xfs_buf *bp) { - xfs_alert(NULL, "Metadata %s detected at block 0x%llx/0x%x", + xfs_alert(NULL, "Metadata %s detected at %s block 0x%llx/0x%x", bp->b_error == -EFSBADCRC ? "CRC error" : "corruption", - bp->b_bn, BBTOB(bp->b_length)); + bp->b_ops->name, bp->b_bn, BBTOB(bp->b_length)); } /* diff --git a/libxfs/xfs_alloc.c b/libxfs/xfs_alloc.c index 95c8d44..b43655c 100644 --- a/libxfs/xfs_alloc.c +++ b/libxfs/xfs_alloc.c @@ -531,6 +531,7 @@ xfs_agfl_write_verify( } const struct xfs_buf_ops xfs_agfl_buf_ops = { + .name = "xfs_agfl", .verify_read = xfs_agfl_read_verify, .verify_write = xfs_agfl_write_verify, }; @@ -2335,6 +2336,7 @@ xfs_agf_write_verify( } const struct xfs_buf_ops xfs_agf_buf_ops = { + .name = "xfs_agf", .verify_read = xfs_agf_read_verify, .verify_write = xfs_agf_write_verify, }; diff --git a/libxfs/xfs_alloc_btree.c b/libxfs/xfs_alloc_btree.c index e60538a..f583bd1 100644 --- a/libxfs/xfs_alloc_btree.c +++ b/libxfs/xfs_alloc_btree.c @@ -377,6 +377,7 @@ xfs_allocbt_write_verify( } const struct xfs_buf_ops xfs_allocbt_buf_ops = { + .name = "xfs_allocbt", .verify_read = xfs_allocbt_read_verify, .verify_write = xfs_allocbt_write_verify, }; diff --git a/libxfs/xfs_attr_leaf.c b/libxfs/xfs_attr_leaf.c index bf473eb..1186cac 100644 --- a/libxfs/xfs_attr_leaf.c +++ b/libxfs/xfs_attr_leaf.c @@ -323,6 +323,7 @@ xfs_attr3_leaf_read_verify( } const struct xfs_buf_ops xfs_attr3_leaf_buf_ops = { + .name = "xfs_attr3_leaf", .verify_read = xfs_attr3_leaf_read_verify, .verify_write = xfs_attr3_leaf_write_verify, }; diff --git a/libxfs/xfs_attr_remote.c b/libxfs/xfs_attr_remote.c index 39ab350..95383e3 100644 --- a/libxfs/xfs_attr_remote.c +++ b/libxfs/xfs_attr_remote.c @@ -196,6 +196,7 @@ xfs_attr3_rmt_write_verify( } const struct xfs_buf_ops xfs_attr3_rmt_buf_ops = { + .name = "xfs_attr3_rmt", .verify_read = xfs_attr3_rmt_read_verify, .verify_write = xfs_attr3_rmt_write_verify, }; diff --git a/libxfs/xfs_bmap_btree.c b/libxfs/xfs_bmap_btree.c index f42bc2d..52c9c75 100644 --- a/libxfs/xfs_bmap_btree.c +++ b/libxfs/xfs_bmap_btree.c @@ -717,6 +717,7 @@ xfs_bmbt_write_verify( } const struct xfs_buf_ops xfs_bmbt_buf_ops = { + .name = "xfs_bmbt", .verify_read = xfs_bmbt_read_verify, .verify_write = xfs_bmbt_write_verify, }; diff --git a/libxfs/xfs_da_btree.c b/libxfs/xfs_da_btree.c index bdd60a0..bf5fe21 100644 --- a/libxfs/xfs_da_btree.c +++ b/libxfs/xfs_da_btree.c @@ -240,6 +240,7 @@ xfs_da3_node_read_verify( } const struct xfs_buf_ops xfs_da3_node_buf_ops = { + .name = "xfs_da3_node", .verify_read = xfs_da3_node_read_verify, .verify_write = xfs_da3_node_write_verify, }; diff --git a/libxfs/xfs_dir2_block.c b/libxfs/xfs_dir2_block.c index d7ba0e9..32bde31 100644 --- a/libxfs/xfs_dir2_block.c +++ b/libxfs/xfs_dir2_block.c @@ -119,6 +119,7 @@ xfs_dir3_block_write_verify( } const struct xfs_buf_ops xfs_dir3_block_buf_ops = { + .name = "xfs_dir3_block", .verify_read = xfs_dir3_block_read_verify, .verify_write = xfs_dir3_block_write_verify, }; diff --git a/libxfs/xfs_dir2_data.c b/libxfs/xfs_dir2_data.c index 37b3b68..6ae5cd2 100644 --- a/libxfs/xfs_dir2_data.c +++ b/libxfs/xfs_dir2_data.c @@ -302,11 +302,13 @@ xfs_dir3_data_write_verify( } const struct xfs_buf_ops xfs_dir3_data_buf_ops = { + .name = "xfs_dir3_data", .verify_read = xfs_dir3_data_read_verify, .verify_write = xfs_dir3_data_write_verify, }; static const struct xfs_buf_ops xfs_dir3_data_reada_buf_ops = { + .name = "xfs_dir3_data_reada", .verify_read = xfs_dir3_data_reada_verify, .verify_write = xfs_dir3_data_write_verify, }; diff --git a/libxfs/xfs_dir2_leaf.c b/libxfs/xfs_dir2_leaf.c index 77c2e65..f80d91f 100644 --- a/libxfs/xfs_dir2_leaf.c +++ b/libxfs/xfs_dir2_leaf.c @@ -242,11 +242,13 @@ xfs_dir3_leafn_write_verify( } const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops = { + .name = "xfs_dir3_leaf1", .verify_read = xfs_dir3_leaf1_read_verify, .verify_write = xfs_dir3_leaf1_write_verify, }; const struct xfs_buf_ops xfs_dir3_leafn_buf_ops = { + .name = "xfs_dir3_leafn", .verify_read = xfs_dir3_leafn_read_verify, .verify_write = xfs_dir3_leafn_write_verify, }; diff --git a/libxfs/xfs_dir2_node.c b/libxfs/xfs_dir2_node.c index 689a3fd..224daa6 100644 --- a/libxfs/xfs_dir2_node.c +++ b/libxfs/xfs_dir2_node.c @@ -147,6 +147,7 @@ xfs_dir3_free_write_verify( } const struct xfs_buf_ops xfs_dir3_free_buf_ops = { + .name = "xfs_dir3_free", .verify_read = xfs_dir3_free_read_verify, .verify_write = xfs_dir3_free_write_verify, }; diff --git a/libxfs/xfs_dquot_buf.c b/libxfs/xfs_dquot_buf.c index 1a2546b..38f9703 100644 --- a/libxfs/xfs_dquot_buf.c +++ b/libxfs/xfs_dquot_buf.c @@ -290,6 +290,7 @@ xfs_dquot_buf_write_verify( } const struct xfs_buf_ops xfs_dquot_buf_ops = { + .name = "xfs_dquot", .verify_read = xfs_dquot_buf_read_verify, .verify_write = xfs_dquot_buf_write_verify, }; diff --git a/libxfs/xfs_ialloc.c b/libxfs/xfs_ialloc.c index d39f9b6..5039f4b 100644 --- a/libxfs/xfs_ialloc.c +++ b/libxfs/xfs_ialloc.c @@ -2566,6 +2566,7 @@ xfs_agi_write_verify( } const struct xfs_buf_ops xfs_agi_buf_ops = { + .name = "xfs_agi", .verify_read = xfs_agi_read_verify, .verify_write = xfs_agi_write_verify, }; diff --git a/libxfs/xfs_ialloc_btree.c b/libxfs/xfs_ialloc_btree.c index 09ffdb4..f592ad1 100644 --- a/libxfs/xfs_ialloc_btree.c +++ b/libxfs/xfs_ialloc_btree.c @@ -303,6 +303,7 @@ xfs_inobt_write_verify( } const struct xfs_buf_ops xfs_inobt_buf_ops = { + .name = "xfs_inobt", .verify_read = xfs_inobt_read_verify, .verify_write = xfs_inobt_write_verify, }; diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c index 747a879..324715e 100644 --- a/libxfs/xfs_inode_buf.c +++ b/libxfs/xfs_inode_buf.c @@ -141,11 +141,13 @@ xfs_inode_buf_write_verify( } const struct xfs_buf_ops xfs_inode_buf_ops = { + .name = "xfs_inode", .verify_read = xfs_inode_buf_read_verify, .verify_write = xfs_inode_buf_write_verify, }; const struct xfs_buf_ops xfs_inode_buf_ra_ops = { + .name = "xxfs_inode_ra", .verify_read = xfs_inode_buf_readahead_verify, .verify_write = xfs_inode_buf_write_verify, }; diff --git a/libxfs/xfs_sb.c b/libxfs/xfs_sb.c index c293d68..78ad889 100644 --- a/libxfs/xfs_sb.c +++ b/libxfs/xfs_sb.c @@ -661,11 +661,13 @@ xfs_sb_write_verify( } const struct xfs_buf_ops xfs_sb_buf_ops = { + .name = "xfs_sb", .verify_read = xfs_sb_read_verify, .verify_write = xfs_sb_write_verify, }; const struct xfs_buf_ops xfs_sb_quiet_buf_ops = { + .name = "xfs_sb_quiet", .verify_read = xfs_sb_quiet_read_verify, .verify_write = xfs_sb_write_verify, }; diff --git a/libxfs/xfs_symlink_remote.c b/libxfs/xfs_symlink_remote.c index 647444a..fb9ece8 100644 --- a/libxfs/xfs_symlink_remote.c +++ b/libxfs/xfs_symlink_remote.c @@ -164,6 +164,7 @@ xfs_symlink_write_verify( } const struct xfs_buf_ops xfs_symlink_buf_ops = { + .name = "xfs_symlink", .verify_read = xfs_symlink_read_verify, .verify_write = xfs_symlink_write_verify, }; From penguin-kernel@I-love.SAKURA.ne.jp Wed Nov 11 16:19:26 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0AC2B7F53 for ; Wed, 11 Nov 2015 16:19:26 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id E91BD8F8040 for ; 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Thu, 12 Nov 2015 07:19:14 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) To: arekm@maven.pl Cc: linux-mm@kvack.org, xfs@oss.sgi.com Subject: Re: memory reclaim problems on fs usage From: Tetsuo Handa X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage References: <201511102313.36685.arekm@maven.pl> <5643658B.9090206@I-love.SAKURA.ne.jp> <201511111719.44035.arekm@maven.pl> In-Reply-To: <201511111719.44035.arekm@maven.pl> Message-Id: <201511120719.EBF35970.OtSOHOVFJMFQFL@I-love.SAKURA.ne.jp> X-Mailer: Winbiff [Version 2.51 PL2] X-Accept-Language: ja,en,zh Date: Thu, 12 Nov 2015 07:19:13 +0900 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Barracuda-Connect: www262.sakura.ne.jp[202.181.97.72] X-Barracuda-Start-Time: 1447280361 X-Barracuda-Encrypted: DHE-RSA-CAMELLIA256-SHA X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24313 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Arkadiusz Mi?kiewicz wrote: > This patch is against which tree? (tried 4.1, 4.2 and 4.3) Oops. Whitespace-damaged. This patch is for vanilla 4.1.2. Reposting with one condition corrected. if (!dump_target_pid) => if (dump_target_pid <= 0) --- fs/xfs/kmem.c | 10 ++- fs/xfs/xfs_buf.c | 3 +- include/linux/mmzone.h | 1 + include/linux/vmstat.h | 1 + mm/page_alloc.c | 217 +++++++++++++++++++++++++++++++++++++++++++++++++ mm/vmscan.c | 22 +++++ 6 files changed, 249 insertions(+), 5 deletions(-) diff --git a/fs/xfs/kmem.c b/fs/xfs/kmem.c index a7a3a63..535c136 100644 --- a/fs/xfs/kmem.c +++ b/fs/xfs/kmem.c @@ -55,8 +55,9 @@ kmem_alloc(size_t size, xfs_km_flags_t flags) return ptr; if (!(++retries % 100)) xfs_err(NULL, - "possible memory allocation deadlock in %s (mode:0x%x)", - __func__, lflags); + "%s(%u) possible memory allocation deadlock in %s (mode:0x%x)", + current->comm, current->pid, + __func__, lflags); congestion_wait(BLK_RW_ASYNC, HZ/50); } while (1); } @@ -120,8 +121,9 @@ kmem_zone_alloc(kmem_zone_t *zone, xfs_km_flags_t flags) return ptr; if (!(++retries % 100)) xfs_err(NULL, - "possible memory allocation deadlock in %s (mode:0x%x)", - __func__, lflags); + "%s(%u) possible memory allocation deadlock in %s (mode:0x%x)", + current->comm, current->pid, + __func__, lflags); congestion_wait(BLK_RW_ASYNC, HZ/50); } while (1); } diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 1790b00..16322cb 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -354,7 +354,8 @@ retry: */ if (!(++retries % 100)) xfs_err(NULL, - "possible memory allocation deadlock in %s (mode:0x%x)", + "%s(%u) possible memory allocation deadlock in %s (mode:0x%x)", + current->comm, current->pid, __func__, gfp_mask); XFS_STATS_INC(xb_page_retries); diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 54d74f6..932a6d6 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -527,6 +527,7 @@ struct zone { ZONE_PADDING(_pad3_) /* Zone statistics */ atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; + unsigned long stat_last_updated[NR_VM_ZONE_STAT_ITEMS]; } ____cacheline_internodealigned_in_smp; enum zone_flags { diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 82e7db7..2488925 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -115,6 +115,7 @@ static inline void zone_page_state_add(long x, struct zone *zone, { atomic_long_add(x, &zone->vm_stat[item]); atomic_long_add(x, &vm_stat[item]); + zone->stat_last_updated[item] = jiffies; } static inline unsigned long global_page_state(enum zone_stat_item item) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 18490f3..35a46b4 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -61,6 +61,8 @@ #include #include #include +#include +#include #include #include @@ -2496,6 +2498,8 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order, } #endif /* CONFIG_COMPACTION */ +pid_t dump_target_pid; + /* Perform direct synchronous page reclaim */ static int __perform_reclaim(gfp_t gfp_mask, unsigned int order, @@ -2645,6 +2649,208 @@ bool gfp_pfmemalloc_allowed(gfp_t gfp_mask) return !!(gfp_to_alloc_flags(gfp_mask) & ALLOC_NO_WATERMARKS); } +static unsigned long kmallocwd_timeout = 10 * HZ; /* Scan interval. */ +static u8 memalloc_counter_active_index; /* Either 0 or 1. */ +static int memalloc_counter[2]; /* Number of tasks doing memory allocation. */ + +struct memalloc { + struct list_head list; /* Connected to memalloc_list. */ + struct task_struct *task; /* Iniatilized to current. */ + unsigned long start; /* Initialized to jiffies. */ + unsigned int order; + gfp_t gfp; + u8 index; /* Initialized to memalloc_counter_active_index. */ + u8 dumped; +}; + +static LIST_HEAD(memalloc_list); /* List of "struct memalloc".*/ +static DEFINE_SPINLOCK(memalloc_list_lock); /* Lock for memalloc_list. */ + +/* + * kmallocwd - A kernel thread for monitoring memory allocation stalls. + * + * @unused: Not used. + * + * This kernel thread does not terminate. + */ +static int kmallocwd(void *unused) +{ + struct memalloc *m; + struct task_struct *g, *p; + unsigned long now; + unsigned int sigkill_pending; + unsigned int memdie_pending; + unsigned int stalling_tasks; + u8 index; + pid_t pid; + + not_stalling: /* Healty case. */ + /* Switch active counter and wait for timeout duration. */ + index = memalloc_counter_active_index; + spin_lock(&memalloc_list_lock); + memalloc_counter_active_index ^= 1; + spin_unlock(&memalloc_list_lock); + schedule_timeout_interruptible(kmallocwd_timeout); + /* + * If memory allocations are working, the counter should remain 0 + * because tasks will be able to call both start_memalloc_timer() + * and stop_memalloc_timer() within timeout duration. + */ + if (likely(!memalloc_counter[index])) + goto not_stalling; + maybe_stalling: /* Maybe something is wrong. Let's check. */ + now = jiffies; + /* Count stalling tasks, dying and victim tasks. */ + sigkill_pending = 0; + memdie_pending = 0; + stalling_tasks = 0; + pid = 0; + spin_lock(&memalloc_list_lock); + list_for_each_entry(m, &memalloc_list, list) { + if (time_after(now - m->start, kmallocwd_timeout)) + stalling_tasks++; + } + spin_unlock(&memalloc_list_lock); + preempt_disable(); + rcu_read_lock(); + for_each_process_thread(g, p) { + if (test_tsk_thread_flag(p, TIF_MEMDIE)) + memdie_pending++; + if (fatal_signal_pending(p)) + sigkill_pending++; + } + rcu_read_unlock(); + preempt_enable(); + cond_resched(); + pr_warn("MemAlloc-Info: %u stalling task, %u dying task, %u victim task.\n", + stalling_tasks, sigkill_pending, memdie_pending); + /* Report stalling tasks, dying and victim tasks. */ + spin_lock(&memalloc_list_lock); + list_for_each_entry(m, &memalloc_list, list) { + if (time_before(now - m->start, kmallocwd_timeout)) + continue; + p = m->task; + pr_warn("MemAlloc: %s(%u) gfp=0x%x order=%u delay=%lu\n", + p->comm, p->pid, m->gfp, m->order, now - m->start); + } + spin_unlock(&memalloc_list_lock); + preempt_disable(); + rcu_read_lock(); + for_each_process_thread(g, p) { + u8 type = 0; + + if (test_tsk_thread_flag(p, TIF_MEMDIE)) + type |= 1; + if (fatal_signal_pending(p)) + type |= 2; + if (likely(!type)) + continue; + if (p->state & TASK_UNINTERRUPTIBLE) + type |= 4; + pr_warn("MemAlloc: %s(%u)%s%s%s\n", p->comm, p->pid, + (type & 4) ? " uninterruptible" : "", + (type & 2) ? " dying" : "", + (type & 1) ? " victim" : ""); + } + rcu_read_unlock(); + preempt_enable(); + cond_resched(); + /* + * Show traces of newly reported (or too long) stalling tasks. + * + * Show traces only once per 256 timeouts because their traces + * will likely be the same (e.g. cond_sched() or congestion_wait()) + * when they are stalling inside __alloc_pages_slowpath(). + */ + spin_lock(&memalloc_list_lock); + list_for_each_entry(m, &memalloc_list, list) { + if (time_before(now - m->start, kmallocwd_timeout) || + m->dumped++) + continue; + p = m->task; + sched_show_task(p); + debug_show_held_locks(p); + touch_nmi_watchdog(); + if (!pid) + pid = p->pid; + } + spin_unlock(&memalloc_list_lock); + /* + * Show traces of dying tasks (including victim tasks). + * + * Only dying tasks which are in trouble (e.g. blocked at unkillable + * locks held by memory allocating tasks) will be repeatedly shown. + * Therefore, we need to pay attention to tasks repeatedly shown here. + */ + preempt_disable(); + rcu_read_lock(); + for_each_process_thread(g, p) { + if (likely(!fatal_signal_pending(p))) + continue; + sched_show_task(p); + debug_show_held_locks(p); + touch_nmi_watchdog(); + } + rcu_read_unlock(); + preempt_enable(); + show_workqueue_state(); + if (dump_target_pid <= 0) + dump_target_pid = -pid; + /* Wait until next timeout duration. */ + schedule_timeout_interruptible(kmallocwd_timeout); + if (memalloc_counter[index]) + goto maybe_stalling; + goto not_stalling; + return 0; /* To suppress "no return statement" compiler warning. */ +} + +static int __init start_kmallocwd(void) +{ + if (kmallocwd_timeout) { + struct task_struct *task = kthread_run(kmallocwd, NULL, + "kmallocwd"); + BUG_ON(IS_ERR(task)); + } + return 0; +} +late_initcall(start_kmallocwd); + +static int __init kmallocwd_config(char *str) +{ + if (kstrtoul(str, 10, &kmallocwd_timeout) == 0) + kmallocwd_timeout = min(kmallocwd_timeout * HZ, + (unsigned long) LONG_MAX); + return 0; +} +__setup("kmallocwd=", kmallocwd_config); + +static void start_memalloc_timer(struct memalloc *m, const gfp_t gfp_mask, + const int order) +{ + if (!kmallocwd_timeout || m->task) + return; + m->task = current; + m->start = jiffies; + m->gfp = gfp_mask; + m->order = order; + m->dumped = 0; + spin_lock(&memalloc_list_lock); + m->index = memalloc_counter_active_index; + memalloc_counter[m->index]++; + list_add_tail(&m->list, &memalloc_list); + spin_unlock(&memalloc_list_lock); +} + +static void stop_memalloc_timer(struct memalloc *m) +{ + if (!m->task) + return; + spin_lock(&memalloc_list_lock); + memalloc_counter[m->index]--; + list_del(&m->list); + spin_unlock(&memalloc_list_lock); +} + static inline struct page * __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, struct alloc_context *ac) @@ -2657,6 +2863,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, enum migrate_mode migration_mode = MIGRATE_ASYNC; bool deferred_compaction = false; int contended_compaction = COMPACT_CONTENDED_NONE; + struct memalloc m = { .task = NULL }; /* * In the slowpath, we sanity check order to avoid ever trying to @@ -2678,6 +2885,9 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, goto nopage; retry: + if (dump_target_pid == -current->pid) + dump_target_pid = -dump_target_pid; + if (!(gfp_mask & __GFP_NO_KSWAPD)) wake_all_kswapds(order, ac); @@ -2740,6 +2950,8 @@ retry: if (test_thread_flag(TIF_MEMDIE) && !(gfp_mask & __GFP_NOFAIL)) goto nopage; + start_memalloc_timer(&m, gfp_mask, order); + /* * Try direct compaction. The first pass is asynchronous. Subsequent * attempts after direct reclaim are synchronous @@ -2798,6 +3010,10 @@ retry: goto got_pg; /* Check if we should retry the allocation */ + if (dump_target_pid == current->pid) { + printk(KERN_INFO "did_some_progress=%lu\n", did_some_progress); + dump_target_pid = 0; + } pages_reclaimed += did_some_progress; if (should_alloc_retry(gfp_mask, order, did_some_progress, pages_reclaimed)) { @@ -2834,6 +3050,7 @@ retry: nopage: warn_alloc_failed(gfp_mask, order, NULL); got_pg: + stop_memalloc_timer(&m); return page; } diff --git a/mm/vmscan.c b/mm/vmscan.c index 1a17bd7..c449371 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2432,6 +2432,8 @@ static inline bool compaction_ready(struct zone *zone, int order) return watermark_ok; } +extern pid_t dump_target_pid; + /* * This is the direct reclaim path, for page-allocating processes. We only * try to reclaim pages from zones which will satisfy the caller's allocation @@ -2533,7 +2535,27 @@ static bool shrink_zones(struct zonelist *zonelist, struct scan_control *sc) if (global_reclaim(sc) && !reclaimable && zone_reclaimable(zone)) + { + if (dump_target_pid == current->pid) { + unsigned long rec = zone_reclaimable_pages(zone); + unsigned long free = zone_page_state(zone, NR_FREE_PAGES); + unsigned long min = min_wmark_pages(zone); + unsigned long scanned = zone_page_state(zone, NR_PAGES_SCANNED); + unsigned long now = jiffies; + unsigned long rec2 = zone_page_state_snapshot(zone, NR_ACTIVE_FILE) + + zone_page_state_snapshot(zone, NR_INACTIVE_FILE); + unsigned long free2 = zone_page_state_snapshot(zone, NR_FREE_PAGES); + unsigned long scanned2 = zone_page_state_snapshot(zone, NR_PAGES_SCANNED); + + printk(KERN_INFO "%s zone_reclaimable: reclaim:%lu(%lu,%lu,%ld) free:%lu(%lu,%ld) min:%lu pages_scanned:%lu(%lu,%ld) prio:%d\n", + zone->name, rec, now - zone->stat_last_updated[NR_ACTIVE_FILE], + now - zone->stat_last_updated[NR_INACTIVE_FILE], rec - rec2, + free, now - zone->stat_last_updated[NR_FREE_PAGES], free - free2, + min, scanned, now - zone->stat_last_updated[NR_PAGES_SCANNED], + scanned - scanned2, sc->priority); + } reclaimable = true; + } } /* -- 1.8.3.1 From david@fromorbit.com Wed Nov 11 18:42:11 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 178767F37 for ; Wed, 11 Nov 2015 18:42:11 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 13A118F8049 for ; Wed, 11 Nov 2015 16:42:02 -0800 (PST) X-ASG-Debug-ID: 1447288900-04cbb02422139a90001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id JeR0pBiFIXqNJklF for ; Wed, 11 Nov 2015 16:41:41 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DNCAB930NWPIYELHleKAECgxBTb6sjEgaLMok5I4VnBAICgTtNAQEBAQEBBwEBAQFAAT+ENQEBBDocIxAIAxgJJQ8FJQMHGhOILQ7ETAEBCAIhGYV0hUWCcYFRhHcFlkiFHYgBgWOWeINyhHsqNAGFVQEBAQ Received: from ppp121-44-4-134.lns20.syd4.internode.on.net (HELO dastard) ([121.44.4.134]) by ipmail04.adl6.internode.on.net with ESMTP; 12 Nov 2015 11:11:16 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zwfww-0003OK-Uw; Thu, 12 Nov 2015 11:41:15 +1100 Date: Thu, 12 Nov 2015 11:41:14 +1100 From: Dave Chinner To: "Darrick J. Wong" Cc: Christoph Hellwig , fstests@vger.kernel.org, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [RFCv3 00/12] xfstests: test the btrfs/xfs reflink/dedupe ioctls Message-ID: <20151112004114.GO19199@dastard> X-ASG-Orig-Subj: Re: [RFCv3 00/12] xfstests: test the btrfs/xfs reflink/dedupe ioctls References: <20151007051257.3260.73072.stgit@birch.djwong.org> <20151109075926.GB17974@infradead.org> <20151109184913.GB3255@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151109184913.GB3255@birch.djwong.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1447288900 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24316 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Mon, Nov 09, 2015 at 10:49:13AM -0800, Darrick J. Wong wrote: > On Sun, Nov 08, 2015 at 11:59:26PM -0800, Christoph Hellwig wrote: > > On Tue, Oct 06, 2015 at 10:12:57PM -0700, Darrick J. Wong wrote: > > > * I don't have any interesting NFS/CIFS setups for test. :( > > > > I have a banrch with client and server support for NFSv4.2 CLONE > > support: > > > > http://git.infradead.org/users/hch/pnfs.git/shortlog/refs/heads/reflink+clone > > > > For now you want to use btrfs on the server, as using reflinks on XFS > > seems to be a little unstable over NFS. > > I found a few more bugs in the kernel-side implementation, which might explain > that. I'm about to start working on making CoW less crappy, but I'll push all > the patches out to github. (I wasn't planning on patchbombing again until > December.) > > > > If you're going to start using this mess, you probably ought to just > > > pull from my github trees for kernel[1], xfsprogs[2], and xfstests[3]. > > > They should just work with the btrfs that's in 4.3. > > > > > > Comments and questions are, as always, welcome. > > > > Any reason the groups are called clone? I don't really have an opinion > > on clone vs reflink but given that the xfs_io command is reflink I'd > > rather be consistent. > > The existing btrfs reflink tests were tagged in the 'clone' group prior to my > patchset. > > > Otherwise I'd say get it merged ASAP, we can still fix up various > > details later. > > I'll merge your patch and repost the whole pile of tests. I'm almost ready to > send a pile of updates for the XFS on-disk structure document which add stuff > about the v5 format, rmapbt, and reflink. Darrick, can you renumber the xfstests against what is currently at the head of the repo? If both you an Christoph need them working, you may as well both patch against the main xfstests repo... Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@redhat.com Wed Nov 11 20:09:02 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4747C7F4E for ; Wed, 11 Nov 2015 20:09:02 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id BE156AC002 for ; Wed, 11 Nov 2015 18:08:55 -0800 (PST) X-ASG-Debug-ID: 1447294130-04bdf03f0312a460001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ql00IiG8jmWvamcW (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 18:08:50 -0800 (PST) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 72EBBC05E140 for ; Thu, 12 Nov 2015 02:08:50 +0000 (UTC) Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAC28nX1025358 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 11 Nov 2015 21:08:49 -0500 To: xfs@oss.sgi.com From: Eric Sandeen Subject: [PATCH] xfs_repair: print XFS_WANT_CORRUPTED info with -vvv X-Enigmail-Draft-Status: N1110 X-ASG-Orig-Subj: [PATCH] xfs_repair: print XFS_WANT_CORRUPTED info with -vvv Message-ID: <5643F4B1.40500@redhat.com> Date: Wed, 11 Nov 2015 20:08:49 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447294130 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 In the kernel, the XFS_WANT_CORRUPTED_* macros print the caller information via XFS_ERROR_REPORT, but in userspace this is silenced, because i.e. xfs_repair's job is to find and fix corruption, not to complain loudly about it. However, there are times when we would like to know if we've hit an unexpected corruption point. To that end, make "xfs_repair -vvv" enable noisiness from these macros, so that they will print the function and line of the caller. Signed-off-by: Eric Sandeen --- diff --git a/include/xfs_mount.h b/include/xfs_mount.h index 5ec6866..67f3b05 100644 --- a/include/xfs_mount.h +++ b/include/xfs_mount.h @@ -143,6 +143,7 @@ typedef struct xfs_perag { #define LIBXFS_MOUNT_32BITINOOPT 0x0004 #define LIBXFS_MOUNT_COMPAT_ATTR 0x0008 #define LIBXFS_MOUNT_ATTR2 0x0010 +#define LIBXFS_MOUNT_WANT_CORRUPTED 0x0020 #define LIBXFS_BHASHSIZE(sbp) (1<<10) diff --git a/libxfs/libxfs_priv.h b/libxfs/libxfs_priv.h index 9135aac..0f4d3e5 100644 --- a/libxfs/libxfs_priv.h +++ b/libxfs/libxfs_priv.h @@ -147,10 +147,25 @@ enum ce { CE_DEBUG, CE_CONT, CE_NOTE, CE_WARN, CE_ALERT, CE_PANIC }; #define XFS_TRANS_RESERVE_QUOTA_NBLKS(mp,tp,ip,nblks,ninos,fl) 0 #define XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp,tp,ip,nblks,ninos,fl) 0 #define XFS_TEST_ERROR(expr,a,b,c) ( expr ) -#define XFS_WANT_CORRUPTED_GOTO(mp, expr, l) \ - { (mp) = (mp); if (!(expr)) { error = -EFSCORRUPTED; goto l; } } -#define XFS_WANT_CORRUPTED_RETURN(mp, expr) \ - { (mp) = (mp); if (!(expr)) { return -EFSCORRUPTED; } } +#define XFS_WANT_CORRUPTED_GOTO(mp, expr, l) \ +{ \ + if (!(expr)) { \ + if ((mp)->m_flags & LIBXFS_MOUNT_WANT_CORRUPTED) \ + printf("WANT_CORRUPTED_GOTO at %s:%d\n", \ + __func__, __LINE__); \ + error = -EFSCORRUPTED; \ + goto l; \ + } \ +} +#define XFS_WANT_CORRUPTED_RETURN(mp, expr) \ +{ \ + if (!(expr)) { \ + if ((mp)->m_flags & LIBXFS_MOUNT_WANT_CORRUPTED) \ + printf("WANT_CORRUPTED_RETURN at %s:%d\n", \ + __func__, __LINE__); \ + return -EFSCORRUPTED; \ + } \ +} #ifdef __GNUC__ #define __return_address __builtin_return_address(0) diff --git a/man/man8/xfs_repair.8 b/man/man8/xfs_repair.8 index 0394c50..1b4d9e3 100644 --- a/man/man8/xfs_repair.8 +++ b/man/man8/xfs_repair.8 @@ -158,7 +158,7 @@ outputs its progress every 15 minutes. Reporting is only activated when ag_stride is enabled. .TP .B \-v -Verbose output. +Verbose output. May be specified multiple times to increase verbosity. .TP .B \-d Repair dangerously. Allow diff --git a/repair/xfs_repair.c b/repair/xfs_repair.c index bed2ff5..1aeac5b 100644 --- a/repair/xfs_repair.c +++ b/repair/xfs_repair.c @@ -695,6 +695,10 @@ main(int argc, char **argv) } mp->m_log = &log; + /* Spit out function & line on these corruption macros */ + if (verbose > 2) + mp->m_flags |= LIBXFS_MOUNT_WANT_CORRUPTED; + /* * set XFS-independent status vars from the mount/sb structure */ From liruilong0128@gmail.com Wed Nov 11 20:21:18 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,HTML_MESSAGE,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 422267F5D for ; Wed, 11 Nov 2015 20:21:18 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 07494304039 for ; Wed, 11 Nov 2015 18:21:14 -0800 (PST) X-ASG-Debug-ID: 1447294870-04bdf03f03130050001-NocioJ Received: from mail-qk0-f178.google.com (mail-qk0-f178.google.com [209.85.220.178]) by cuda.sgi.com with ESMTP id v8zuhAVnDf1ar0xL (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 11 Nov 2015 18:21:10 -0800 (PST) X-Barracuda-Envelope-From: liruilong0128@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.220.178 Received: by qkao63 with SMTP id o63so18872714qka.2 for ; Wed, 11 Nov 2015 18:21:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=Xs7+iKuXJaTzj7xSB6awtJGVoKt/UBH2pWuHG9kibBM=; b=GEgZZnX4g0L70B2cxShLtiQfHYoWG2t2EOG/UoS26DGCJx7qyGuDx+zpoHOZ7TPP7R tsJp69mWq5wAyq8kO5mArtFymJApKt+vcBXPVhfkXDv8SdIDrHkqdFPq2f73NkVohcJY HMXTuldv5IVWq6yIJwE388i/RgfAR1u0iPcCsFjl1OHo2/f0jJYqnKfNxYPO2/YTuQzR VUmXHYm1069rcCUdxdV++wmeFKj8xlYxIJKD9b8JPKxc0YQpS8YS7MhKW7PbvwSCbcLj notP1wzaxfcd2dRwzKIqDZrEXJwBS9MMENmN3/tiOdQ9IJk1z4Fs0eiHjxhbUQmnMLCL RErQ== MIME-Version: 1.0 X-Received: by 10.55.52.142 with SMTP id b136mr14003646qka.100.1447294869614; Wed, 11 Nov 2015 18:21:09 -0800 (PST) Received: by 10.140.81.175 with HTTP; Wed, 11 Nov 2015 18:21:09 -0800 (PST) In-Reply-To: <20151111125021.GA28745@redhat.com> References: <20151111125021.GA28745@redhat.com> Date: Thu, 12 Nov 2015 10:21:09 +0800 Message-ID: Subject: Re: xfsprogs install From: rui li X-ASG-Orig-Subj: Re: xfsprogs install To: rui li , xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=001a114953ba96b47105244e9897 X-Barracuda-Connect: mail-qk0-f178.google.com[209.85.220.178] X-Barracuda-Start-Time: 1447294870 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.50 X-Barracuda-Spam-Status: No, SCORE=0.50 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA_TO_FROM_ADDR_MATCH, DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24319 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message 0.50 BSF_SC0_SA_TO_FROM_ADDR_MATCH Sender Address Matches Recipient Address --001a114953ba96b47105244e9897 Content-Type: text/plain; charset=UTF-8 thanks ! when i run mkfs.xfs -f /dev/sda2p1 ,the error is no that file or directory acturally /dev/sda2p1 existed could you give me some help? thank you very much 2015-11-11 20:50 GMT+08:00 Carlos Maiolino : > On Wed, Nov 11, 2015 at 02:38:24PM +0800, rui li wrote: > > hello > > when i install xfsprogs i hava follwing problems > > FATAL ERROR: could not find a valid BLKID header > > Install the Block device ID development package > > could you give me some help? > > thanks > install libblkid-devel package in your distribution, or any similar > package that > your distribution provides with libblkid headers. > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs > > > -- > Carlos > --001a114953ba96b47105244e9897 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
thanks !
when i run mkfs.xfs -f /dev/sda2p1 ,the error= is no that file or directory=C2=A0
acturally /dev/sda2p1 =C2=A0e= xisted
could you give me some help?
thank you very much= =C2=A0

2015-11-11 20:50 GMT+08:00 Carlos Maiolino <cmaiolino@redhat.com= >:
On Wed, Nov 11, 2015 at 02:38:24PM +0800, rui li wrote:
>=C2=A0 =C2=A0 hello
>=C2=A0 =C2=A0 when i install xfsprogs i hava follwing problems
>=C2=A0 =C2=A0 FATAL ERROR: could not find a valid BLKID header
>=C2=A0 =C2=A0 Install the Block device ID development package
>=C2=A0 =C2=A0 could you give me some help?
>=C2=A0 =C2=A0 thanks
install libblkid-devel package in your distribution, or any sim= ilar package that
your distribution provides with libblkid headers.


> _______________________________________________
> xfs mailing list
> xfs@oss.sgi.com
> http://oss.sgi.com/mailman/listinfo/xfs


--
Carlos

--001a114953ba96b47105244e9897-- From robin.listas@gmail.com Wed Nov 11 20:28:30 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DBA8E7F5D for ; Wed, 11 Nov 2015 20:28:29 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5A8E6AC002 for ; Wed, 11 Nov 2015 18:28:29 -0800 (PST) X-ASG-Debug-ID: 1447295306-04bdf03f03130230001-NocioJ Received: from mail-wm0-f44.google.com (mail-wm0-f44.google.com [74.125.82.44]) by cuda.sgi.com with ESMTP id iUNvDLqOIp89i74g (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 11 Nov 2015 18:28:27 -0800 (PST) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.44 Received: by wmww144 with SMTP id w144so182600782wmw.1 for ; Wed, 11 Nov 2015 18:28:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:subject:to:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-type:content-transfer-encoding; bh=wDt04GNKO7Q129oBmIatQiVicoY7v+3KyrZyhLLz6ec=; b=UVvvJuswT/uyCeQOVBsKxSc05GecW2W/+fRoITAmWquBWLXY6EUaSzNT1NL4XZ6hl3 ytbKs38+S9WxAp1JmgfFlqSLKySeOoWN4AJaw7RS6zKPVXveYkqQiEIoBear1VMHHLaP 50w25bPcgGzh7qje4MkX0yECh/QMeVINmP65b/F6sGpmynAEGP5hmVWFCCWsUfTecbLQ IedloYwPILC/Z6W3tWzffKxrDVTSJ8d1hzy2deKbDU5Zb4V/Ps26jPqphNqqjjkbV8WV uThwJB0IEdcDgOE5yRSf/P7Kj7o++vwt2R+J+OUErSCtBjx7wmTOhaHang+CJ5Sep1Y+ 107A== X-Received: by 10.194.186.196 with SMTP id fm4mr15875995wjc.152.1447295306513; Wed, 11 Nov 2015 18:28:26 -0800 (PST) Received: from Minas-Anor.Valinor (248.Red-81-36-103.dynamicIP.rima-tde.net. [81.36.103.248]) by smtp.googlemail.com with ESMTPSA id 69sm1207690wmw.0.2015.11.11.18.28.25 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 11 Nov 2015 18:28:25 -0800 (PST) Sender: Carlos Robinson Subject: Re: xfsprogs install To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: xfsprogs install References: <20151111125021.GA28745@redhat.com> From: "Carlos E. R" Message-ID: <5643F948.2030703@opensuse.org> Date: Thu, 12 Nov 2015 03:28:24 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail-wm0-f44.google.com[74.125.82.44] X-Barracuda-Start-Time: 1447295307 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24319 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On 11/12/2015 03:21 AM, rui li wrote: > thanks ! > when i run mkfs.xfs -f /dev/sda2p1 ,the error is no that file or directory > acturally /dev/sda2p1 existed > could you give me some help? > thank you very much Why don't you try: LANG=POSIX mkfs.xfs -f /dev/sda2p1 and then post what you get here (it will be in English). Use copy paste, don't type nor translate. -- Cheers/Saludos Carlos E. R. (openSUSE Leap 42.1, test at Minas-Anor) From sandeen@redhat.com Wed Nov 11 22:54:48 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 900747F5E for ; Wed, 11 Nov 2015 22:54:48 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 241AAAC001 for ; Wed, 11 Nov 2015 20:54:42 -0800 (PST) X-ASG-Debug-ID: 1447304079-04bdf03f04132900001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id PDfXCDxViWxbAwpu (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 11 Nov 2015 20:54:40 -0800 (PST) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id E3B70C0A5170 for ; Thu, 12 Nov 2015 04:54:39 +0000 (UTC) Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAC4scnw032254 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 11 Nov 2015 23:54:39 -0500 To: xfs@oss.sgi.com From: Eric Sandeen Subject: [PATCH] xfs: create helper for bmap finish & trans join in xfs_attr.c X-Enigmail-Draft-Status: N1110 X-ASG-Orig-Subj: [PATCH] xfs: create helper for bmap finish & trans join in xfs_attr.c Message-ID: <56441B8E.6070603@redhat.com> Date: Wed, 11 Nov 2015 22:54:38 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447304080 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Calls to xfs_bmap_finish() and xfs_trans_ijoin(), and the associated comments were replicated several times across xfs_attr.c. Factor out a new helper function, xfs_bmap_finish_and_join() to take care of this. This also fixes an ASSERT() test of an uninitialized variable in several locations: error = xfs_attr_thing(&args); if (!error) { error = xfs_bmap_finish(&args.trans, args.flist, &committed); } if (error) { ASSERT(committed); If the first xfs_attr_thing() failed, we'd skip the xfs_bmap_finish, never set "committed", and then test it in the ASSERT. Addresses-Coverity-Id: 102360 Addresses-Coverity-Id: 102361 Addresses-Coverity-Id: 102363 Addresses-Coverity-Id: 102364 Signed-off-by: Eric Sandeen --- ->>> I don't think I broke the logic, but feel free to scrutinize it :) xfs_attr.c | 168 ++++++++++++++++--------------------------------------------- 1 file changed, 45 insertions(+), 123 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index f949818..2fe1a3b 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -193,6 +193,28 @@ xfs_attr_calc_size( return nblks; } +STATIC int +xfs_bmap_finish_and_join( + struct xfs_da_args *args, + struct xfs_inode *dp) +{ + int error, committed; + + error = xfs_bmap_finish(&args->trans, args->flist, &committed); + if (error) { + ASSERT(committed); + return error; + } + /* + * bmap_finish() may have committed the last trans and started + * a new one. We need the inode to be in all transactions. + */ + if (committed) + xfs_trans_ijoin(args->trans, dp, 0); + + return 0; +} + int xfs_attr_set( struct xfs_inode *dp, @@ -207,7 +229,7 @@ xfs_attr_set( struct xfs_trans_res tres; xfs_fsblock_t firstblock; int rsvd = (flags & ATTR_ROOT) != 0; - int error, err2, committed, local; + int error, err2, local; XFS_STATS_INC(mp, xs_attr_set); @@ -334,25 +356,15 @@ xfs_attr_set( */ xfs_bmap_init(args.flist, args.firstblock); error = xfs_attr_shortform_to_leaf(&args); - if (!error) { - error = xfs_bmap_finish(&args.trans, args.flist, - &committed); - } + if (!error) + error = xfs_bmap_finish_and_join(&args, dp); if (error) { - ASSERT(committed); args.trans = NULL; xfs_bmap_cancel(&flist); goto out; } /* - * bmap_finish() may have committed the last trans and started - * a new one. We need the inode to be in all transactions. - */ - if (committed) - xfs_trans_ijoin(args.trans, dp, 0); - - /* * Commit the leaf transformation. We'll need another (linked) * transaction to add the new attribute to the leaf. */ @@ -568,7 +580,7 @@ xfs_attr_leaf_addname(xfs_da_args_t *args) { xfs_inode_t *dp; struct xfs_buf *bp; - int retval, error, committed, forkoff; + int retval, error, forkoff; trace_xfs_attr_leaf_addname(args); @@ -628,25 +640,15 @@ xfs_attr_leaf_addname(xfs_da_args_t *args) */ xfs_bmap_init(args->flist, args->firstblock); error = xfs_attr3_leaf_to_node(args); - if (!error) { - error = xfs_bmap_finish(&args->trans, args->flist, - &committed); - } + if (!error) + error = xfs_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); return error; } /* - * bmap_finish() may have committed the last trans and started - * a new one. We need the inode to be in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); - - /* * Commit the current trans (including the inode) and start * a new one. */ @@ -729,25 +731,13 @@ xfs_attr_leaf_addname(xfs_da_args_t *args) xfs_bmap_init(args->flist, args->firstblock); error = xfs_attr3_leaf_to_shortform(bp, args, forkoff); /* bp is gone due to xfs_da_shrink_inode */ - if (!error) { - error = xfs_bmap_finish(&args->trans, - args->flist, - &committed); - } + if (!error) + error = xfs_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); return error; } - - /* - * bmap_finish() may have committed the last trans - * and started a new one. We need the inode to be - * in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); } /* @@ -775,7 +765,7 @@ xfs_attr_leaf_removename(xfs_da_args_t *args) { xfs_inode_t *dp; struct xfs_buf *bp; - int error, committed, forkoff; + int error, forkoff; trace_xfs_attr_leaf_removename(args); @@ -803,23 +793,13 @@ xfs_attr_leaf_removename(xfs_da_args_t *args) xfs_bmap_init(args->flist, args->firstblock); error = xfs_attr3_leaf_to_shortform(bp, args, forkoff); /* bp is gone due to xfs_da_shrink_inode */ - if (!error) { - error = xfs_bmap_finish(&args->trans, args->flist, - &committed); - } + if (!error) + error = xfs_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); return error; } - - /* - * bmap_finish() may have committed the last trans and started - * a new one. We need the inode to be in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); } return 0; } @@ -877,7 +857,7 @@ xfs_attr_node_addname(xfs_da_args_t *args) xfs_da_state_blk_t *blk; xfs_inode_t *dp; xfs_mount_t *mp; - int committed, retval, error; + int retval, error; trace_xfs_attr_node_addname(args); @@ -938,26 +918,13 @@ restart: state = NULL; xfs_bmap_init(args->flist, args->firstblock); error = xfs_attr3_leaf_to_node(args); - if (!error) { - error = xfs_bmap_finish(&args->trans, - args->flist, - &committed); - } + if (!error) + error = xfs_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); goto out; } - - /* - * bmap_finish() may have committed the last trans - * and started a new one. We need the inode to be - * in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); - /* * Commit the node conversion and start the next * trans in the chain. @@ -977,23 +944,13 @@ restart: */ xfs_bmap_init(args->flist, args->firstblock); error = xfs_da3_split(state); - if (!error) { - error = xfs_bmap_finish(&args->trans, args->flist, - &committed); - } + if (!error) + error = xfs_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); goto out; } - - /* - * bmap_finish() may have committed the last trans and started - * a new one. We need the inode to be in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); } else { /* * Addition succeeded, update Btree hashvals. @@ -1086,25 +1043,13 @@ restart: if (retval && (state->path.active > 1)) { xfs_bmap_init(args->flist, args->firstblock); error = xfs_da3_join(state); - if (!error) { - error = xfs_bmap_finish(&args->trans, - args->flist, - &committed); - } + if (!error) + error = xfs_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); goto out; } - - /* - * bmap_finish() may have committed the last trans - * and started a new one. We need the inode to be - * in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); } /* @@ -1146,7 +1091,7 @@ xfs_attr_node_removename(xfs_da_args_t *args) xfs_da_state_blk_t *blk; xfs_inode_t *dp; struct xfs_buf *bp; - int retval, error, committed, forkoff; + int retval, error, forkoff; trace_xfs_attr_node_removename(args); @@ -1220,24 +1165,13 @@ xfs_attr_node_removename(xfs_da_args_t *args) if (retval && (state->path.active > 1)) { xfs_bmap_init(args->flist, args->firstblock); error = xfs_da3_join(state); - if (!error) { - error = xfs_bmap_finish(&args->trans, args->flist, - &committed); - } + if (!error) + error = xfs_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); goto out; } - - /* - * bmap_finish() may have committed the last trans and started - * a new one. We need the inode to be in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); - /* * Commit the Btree join operation and start a new trans. */ @@ -1265,25 +1199,13 @@ xfs_attr_node_removename(xfs_da_args_t *args) xfs_bmap_init(args->flist, args->firstblock); error = xfs_attr3_leaf_to_shortform(bp, args, forkoff); /* bp is gone due to xfs_da_shrink_inode */ - if (!error) { - error = xfs_bmap_finish(&args->trans, - args->flist, - &committed); - } + if (!error) + error = xfs_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); goto out; } - - /* - * bmap_finish() may have committed the last trans - * and started a new one. We need the inode to be - * in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); } else xfs_trans_brelse(args->trans, bp); } From sandeen@sandeen.net Wed Nov 11 22:59:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2EB327F5E for ; Wed, 11 Nov 2015 22:59:01 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 08680304043 for ; Wed, 11 Nov 2015 20:59:00 -0800 (PST) X-ASG-Debug-ID: 1447304326-04cbb02423144c10001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 67gPqklZOgdLWuSo for ; Wed, 11 Nov 2015 20:58:46 -0800 (PST) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 1BA5A612961A for ; Wed, 11 Nov 2015 22:58:46 -0600 (CST) Subject: Re: [PATCH] xfs: create helper for bmap finish & trans join in xfs_attr.c To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs: create helper for bmap finish & trans join in xfs_attr.c References: <56441B8E.6070603@redhat.com> From: Eric Sandeen Message-ID: <56441C85.2010406@sandeen.net> Date: Wed, 11 Nov 2015 22:58:45 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <56441B8E.6070603@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1447304326 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24321 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 11/11/15 10:54 PM, Eric Sandeen wrote: > Calls to xfs_bmap_finish() and xfs_trans_ijoin(), and the > associated comments were replicated several times across > xfs_attr.c. > > Factor out a new helper function, xfs_bmap_finish_and_join() > to take care of this. > > This also fixes an ASSERT() test of an uninitialized variable > in several locations: > > error = xfs_attr_thing(&args); > if (!error) { > error = xfs_bmap_finish(&args.trans, args.flist, > &committed); > } > if (error) { > ASSERT(committed); > > If the first xfs_attr_thing() failed, we'd skip the xfs_bmap_finish, > never set "committed", and then test it in the ASSERT. Whoops, of course right after I send it I see that this can be used (and the ASSERT problem exists) in xfs_attr_remote.c as well; I'll send V2 tomorrow. -Eric From arekm@maven.pl Thu Nov 12 00:06:23 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C62607F53 for ; Thu, 12 Nov 2015 00:06:23 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 880C38F8035 for ; Wed, 11 Nov 2015 22:06:20 -0800 (PST) X-ASG-Debug-ID: 1447308372-04bdf03f02134700001-NocioJ Received: from mail-lf0-f41.google.com (mail-lf0-f41.google.com [209.85.215.41]) by cuda.sgi.com with ESMTP id uoZGIP3ch06b8Lq7 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 11 Nov 2015 22:06:13 -0800 (PST) X-Barracuda-Envelope-From: arekm@maven.pl X-Barracuda-Apparent-Source-IP: 209.85.215.41 Received: by lfdo63 with SMTP id o63so28182419lfd.2 for ; Wed, 11 Nov 2015 22:06:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maven.pl; s=maven; h=from:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; bh=FH2EHEvVv1dA9Aca83nlC6zB2dSONT9McpAY3OG00UE=; b=FdfKUzcfv+QEU+ZRXz6TPTK8mB9P1eokkXzHcyCFQQoMh0mGYjbYYJHtKRlTkBV2bC YzBll2lVEoM4r8/+XKqOnt2v3rt4P/tqgp59xkvZu8kYpFJZja5ziJo+X6UoQOUMU9lb Ndd0Phmvo7v8P+ajwPl/ItU9i/7EYU3VdwTic= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:user-agent:cc:references :in-reply-to:mime-version:content-type:content-transfer-encoding :message-id; bh=FH2EHEvVv1dA9Aca83nlC6zB2dSONT9McpAY3OG00UE=; b=df4qtNLgUlv6ALJEqAOSjUY5jB5rWcMHWGQ2LRbkOjDAt3KGzZKfOvefp9ONSgF/LB wvrBfH6Khy57dhzADlCltRvyR0x6GLYyOGaOHDJ5fFGtoVDQiondZnQHQDd7susTDoIG 0BBP1NmX7zwRCOVNsgw8jv7cbjic7GIaPVyPoXI5Zzfq0Wk1Xuqo0oFpy8RudQKUhISm 3jRyEJo+1HwqFUrqGu9IvbPOh3wfaA4bMGzuswzY7PtfXuDK0rfKpjaTeQfmXUqmWJdh OqEUMP3/vkvmx16dDjBF2meZazuOEVqnkkGrub2yuLbuYhc1/o/BSn/D0xLDIV0azD9A 76vA== X-Gm-Message-State: ALoCoQkRIcKG7+xKswqYK93UAWkJ11atBJXH0LXQhVhbtiBNlkBl8cVMhc8qxk9q8/MF5mpd1dIU X-Received: by 10.25.26.210 with SMTP id a201mr6421385lfa.58.1447308372104; Wed, 11 Nov 2015 22:06:12 -0800 (PST) Received: from xps.localnet (85-222-71-204.dynamic.chello.pl. [85.222.71.204]) by smtp.gmail.com with ESMTPSA id q197sm2028857lfd.36.2015.11.11.22.06.11 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 11 Nov 2015 22:06:11 -0800 (PST) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= To: Tetsuo Handa Subject: Re: memory reclaim problems on fs usage Date: Thu, 12 Nov 2015 07:06:10 +0100 X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage User-Agent: KMail/1.13.7 (Linux/4.3.0; KDE/4.14.13; x86_64; ; ) Cc: linux-mm@kvack.org, xfs@oss.sgi.com References: <201511102313.36685.arekm@maven.pl> <201511111719.44035.arekm@maven.pl> <201511120719.EBF35970.OtSOHOVFJMFQFL@I-love.SAKURA.ne.jp> In-Reply-To: <201511120719.EBF35970.OtSOHOVFJMFQFL@I-love.SAKURA.ne.jp> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201511120706.10739.arekm@maven.pl> X-Barracuda-Connect: mail-lf0-f41.google.com[209.85.215.41] X-Barracuda-Start-Time: 1447308373 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24322 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Wednesday 11 of November 2015, Tetsuo Handa wrote: > Arkadiusz Mi?kiewicz wrote: > > This patch is against which tree? (tried 4.1, 4.2 and 4.3) >=20 > Oops. Whitespace-damaged. This patch is for vanilla 4.1.2. > Reposting with one condition corrected. Here is log: http://ixion.pld-linux.org/~arekm/log-mm-1.txt.gz Uncompresses is 1.4MB, so not posting here. =2D-=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / ( maven.pl | pld-linux.org ) From BATV+89ba7098823c58057a3d+4463+infradead.org+hch@bombadil.srs.infradead.org Thu Nov 12 03:08:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 977C27F62 for ; Thu, 12 Nov 2015 03:08:09 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 694DA8F8040 for ; Thu, 12 Nov 2015 01:08:06 -0800 (PST) X-ASG-Debug-ID: 1447319284-04bdf03f02138cb0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id zYIYwYbPZ7256ru7 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 12 Nov 2015 01:08:04 -0800 (PST) X-Barracuda-Envelope-From: BATV+89ba7098823c58057a3d+4463+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZwnrI-0006lj-Lp; Thu, 12 Nov 2015 09:07:56 +0000 Date: Thu, 12 Nov 2015 01:07:56 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: hch@infradead.org, david@fromorbit.com, fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls Message-ID: <20151112090756.GA25685@infradead.org> X-ASG-Orig-Subj: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls References: <20151111192628.15056.6451.stgit@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151111192628.15056.6451.stgit@birch.djwong.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447319284 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24325 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS Looks fine: Acked-by: Christoph Hellwig some of the free block range stuff might need minor fixups for certain file systems later, but I'd rather do this once all the patches are merged. From cmaiolino@redhat.com Thu Nov 12 06:37:20 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5ED737F62 for ; Thu, 12 Nov 2015 06:37:20 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id D68F0AC001 for ; Thu, 12 Nov 2015 04:37:16 -0800 (PST) X-ASG-Debug-ID: 1447331834-04cb6c296d138de0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id xScelxZQZWB53L1Q (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 04:37:15 -0800 (PST) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id A039937F43; Thu, 12 Nov 2015 12:37:14 +0000 (UTC) Received: from redhat.com (dhcp-26-103.brq.redhat.com [10.34.26.103]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACCbBm8001282 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 12 Nov 2015 07:37:13 -0500 Date: Thu, 12 Nov 2015 13:37:10 +0100 From: Carlos Maiolino To: "Carlos E. R" Cc: xfs@oss.sgi.com Subject: Re: xfsprogs install Message-ID: <20151112123710.GA2585@redhat.com> X-ASG-Orig-Subj: Re: xfsprogs install Mail-Followup-To: "Carlos E. R" , xfs@oss.sgi.com References: <20151111125021.GA28745@redhat.com> <5643F948.2030703@opensuse.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5643F948.2030703@opensuse.org> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447331835 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Nov 12, 2015 at 03:28:24AM +0100, Carlos E. R wrote: > On 11/12/2015 03:21 AM, rui li wrote: > >thanks ! > >when i run mkfs.xfs -f /dev/sda2p1 ,the error is no that file or directory > >acturally /dev/sda2p1 existed > >could you give me some help? > >thank you very much > > Why don't you try: > > LANG=POSIX mkfs.xfs -f /dev/sda2p1 > > and then post what you get here (it will be in English). Use copy paste, > don't type nor translate. +1 although the amount of information you provided isn't enough to say much. /dev/sda2p1 what kind of device is it? how did you ended up with it? It looks like to be created by device-mapper / lvm to me, but I can't say just for looking the device name. Anyway, what `ls -l /dev/sda2p1` shows to you, maybe it's a broken symbolic link to somewhere else? Anyway, just guesses, I don't have any information to say anything else > > -- > Cheers/Saludos > > Carlos E. R. (openSUSE Leap 42.1, test at Minas-Anor) > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs -- Carlos From bfoster@redhat.com Thu Nov 12 06:40:50 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 97C8F7F62 for ; Thu, 12 Nov 2015 06:40:50 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 84AB28F8033 for ; Thu, 12 Nov 2015 04:40:50 -0800 (PST) X-ASG-Debug-ID: 1447332048-04cbb0242514ec50001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id aXgpMZehGYeGIX2X (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 04:40:48 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 48BD5461C8 for ; Thu, 12 Nov 2015 12:40:48 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACCelPD007192; Thu, 12 Nov 2015 07:40:47 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 5CB20120059; Thu, 12 Nov 2015 07:40:47 -0500 (EST) Date: Thu, 12 Nov 2015 07:40:47 -0500 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: print name of verifier if it fails Message-ID: <20151112124046.GA5068@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: print name of verifier if it fails References: <5643BD7D.4000307@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5643BD7D.4000307@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447332048 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 11, 2015 at 04:13:17PM -0600, Eric Sandeen wrote: > This adds a name to each buf_ops structure, so that if > a verifier fails we can print the type of verifier that > failed it. Should be a slight debugging aid, I hope. > > Signed-off-by: Eric Sandeen > --- Seems harmless, but is this really necessary when we dump a stack trace? I suppose that only happens if the error level is set appropriately. Another option might be to use _RET_IP_. It might not be as pretty, but we already use it all over the place for tracepoints and such. Brian > > diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c > index 3479294..e1e7fe3 100644 > --- a/fs/xfs/libxfs/xfs_alloc.c > +++ b/fs/xfs/libxfs/xfs_alloc.c > @@ -535,6 +535,7 @@ xfs_agfl_write_verify( > } > > const struct xfs_buf_ops xfs_agfl_buf_ops = { > + .name = "xfs_agfl", > .verify_read = xfs_agfl_read_verify, > .verify_write = xfs_agfl_write_verify, > }; > @@ -2339,6 +2340,7 @@ xfs_agf_write_verify( > } > > const struct xfs_buf_ops xfs_agf_buf_ops = { > + .name = "xfs_agf", > .verify_read = xfs_agf_read_verify, > .verify_write = xfs_agf_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_alloc_btree.c b/fs/xfs/libxfs/xfs_alloc_btree.c > index 90de071..eb8bbfe 100644 > --- a/fs/xfs/libxfs/xfs_alloc_btree.c > +++ b/fs/xfs/libxfs/xfs_alloc_btree.c > @@ -379,6 +379,7 @@ xfs_allocbt_write_verify( > } > > const struct xfs_buf_ops xfs_allocbt_buf_ops = { > + .name = "xfs_allocbt", > .verify_read = xfs_allocbt_read_verify, > .verify_write = xfs_allocbt_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c > index aa187f7..01a5ecf 100644 > --- a/fs/xfs/libxfs/xfs_attr_leaf.c > +++ b/fs/xfs/libxfs/xfs_attr_leaf.c > @@ -328,6 +328,7 @@ xfs_attr3_leaf_read_verify( > } > > const struct xfs_buf_ops xfs_attr3_leaf_buf_ops = { > + .name = "xfs_attr3_leaf", > .verify_read = xfs_attr3_leaf_read_verify, > .verify_write = xfs_attr3_leaf_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c > index 5ab95ff..f3ed9bf 100644 > --- a/fs/xfs/libxfs/xfs_attr_remote.c > +++ b/fs/xfs/libxfs/xfs_attr_remote.c > @@ -201,6 +201,7 @@ xfs_attr3_rmt_write_verify( > } > > const struct xfs_buf_ops xfs_attr3_rmt_buf_ops = { > + .name = "xfs_attr3_rmt", > .verify_read = xfs_attr3_rmt_read_verify, > .verify_write = xfs_attr3_rmt_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c > index 6b0cf65..1637c37 100644 > --- a/fs/xfs/libxfs/xfs_bmap_btree.c > +++ b/fs/xfs/libxfs/xfs_bmap_btree.c > @@ -720,6 +720,7 @@ xfs_bmbt_write_verify( > } > > const struct xfs_buf_ops xfs_bmbt_buf_ops = { > + .name = "xfs_bmbt", > .verify_read = xfs_bmbt_read_verify, > .verify_write = xfs_bmbt_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c > index e89a0f8..097bf77 100644 > --- a/fs/xfs/libxfs/xfs_da_btree.c > +++ b/fs/xfs/libxfs/xfs_da_btree.c > @@ -245,6 +245,7 @@ xfs_da3_node_read_verify( > } > > const struct xfs_buf_ops xfs_da3_node_buf_ops = { > + .name = "xfs_da3_node", > .verify_read = xfs_da3_node_read_verify, > .verify_write = xfs_da3_node_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c > index 9c10e2b..aa17cb7 100644 > --- a/fs/xfs/libxfs/xfs_dir2_block.c > +++ b/fs/xfs/libxfs/xfs_dir2_block.c > @@ -123,6 +123,7 @@ xfs_dir3_block_write_verify( > } > > const struct xfs_buf_ops xfs_dir3_block_buf_ops = { > + .name = "xfs_dir3_block", > .verify_read = xfs_dir3_block_read_verify, > .verify_write = xfs_dir3_block_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_dir2_data.c b/fs/xfs/libxfs/xfs_dir2_data.c > index af71a84..725fc78 100644 > --- a/fs/xfs/libxfs/xfs_dir2_data.c > +++ b/fs/xfs/libxfs/xfs_dir2_data.c > @@ -305,11 +305,13 @@ xfs_dir3_data_write_verify( > } > > const struct xfs_buf_ops xfs_dir3_data_buf_ops = { > + .name = "xfs_dir3_data", > .verify_read = xfs_dir3_data_read_verify, > .verify_write = xfs_dir3_data_write_verify, > }; > > static const struct xfs_buf_ops xfs_dir3_data_reada_buf_ops = { > + .name = "xfs_dir3_data_reada", > .verify_read = xfs_dir3_data_reada_verify, > .verify_write = xfs_dir3_data_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_dir2_leaf.c b/fs/xfs/libxfs/xfs_dir2_leaf.c > index 3923e1f..b887fb2 100644 > --- a/fs/xfs/libxfs/xfs_dir2_leaf.c > +++ b/fs/xfs/libxfs/xfs_dir2_leaf.c > @@ -245,11 +245,13 @@ xfs_dir3_leafn_write_verify( > } > > const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops = { > + .name = "xfs_dir3_leaf1", > .verify_read = xfs_dir3_leaf1_read_verify, > .verify_write = xfs_dir3_leaf1_write_verify, > }; > > const struct xfs_buf_ops xfs_dir3_leafn_buf_ops = { > + .name = "xfs_dir3_leafn", > .verify_read = xfs_dir3_leafn_read_verify, > .verify_write = xfs_dir3_leafn_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c > index 70b0cb2..63ee03d 100644 > --- a/fs/xfs/libxfs/xfs_dir2_node.c > +++ b/fs/xfs/libxfs/xfs_dir2_node.c > @@ -150,6 +150,7 @@ xfs_dir3_free_write_verify( > } > > const struct xfs_buf_ops xfs_dir3_free_buf_ops = { > + .name = "xfs_dir3_free", > .verify_read = xfs_dir3_free_read_verify, > .verify_write = xfs_dir3_free_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_dquot_buf.c b/fs/xfs/libxfs/xfs_dquot_buf.c > index 5331b7f..11cefb2 100644 > --- a/fs/xfs/libxfs/xfs_dquot_buf.c > +++ b/fs/xfs/libxfs/xfs_dquot_buf.c > @@ -282,6 +282,7 @@ xfs_dquot_buf_write_verify( > } > > const struct xfs_buf_ops xfs_dquot_buf_ops = { > + .name = "xfs_dquot", > .verify_read = xfs_dquot_buf_read_verify, > .verify_write = xfs_dquot_buf_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c > index 70c1db9..66d702e 100644 > --- a/fs/xfs/libxfs/xfs_ialloc.c > +++ b/fs/xfs/libxfs/xfs_ialloc.c > @@ -2572,6 +2572,7 @@ xfs_agi_write_verify( > } > > const struct xfs_buf_ops xfs_agi_buf_ops = { > + .name = "xfs_agi", > .verify_read = xfs_agi_read_verify, > .verify_write = xfs_agi_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c > index f39b285..6dd44f9 100644 > --- a/fs/xfs/libxfs/xfs_ialloc_btree.c > +++ b/fs/xfs/libxfs/xfs_ialloc_btree.c > @@ -304,6 +304,7 @@ xfs_inobt_write_verify( > } > > const struct xfs_buf_ops xfs_inobt_buf_ops = { > + .name = "xfs_inobt", > .verify_read = xfs_inobt_read_verify, > .verify_write = xfs_inobt_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c > index 268c00f..1b8d98a 100644 > --- a/fs/xfs/libxfs/xfs_inode_buf.c > +++ b/fs/xfs/libxfs/xfs_inode_buf.c > @@ -132,11 +132,13 @@ xfs_inode_buf_write_verify( > } > > const struct xfs_buf_ops xfs_inode_buf_ops = { > + .name = "xfs_inode", > .verify_read = xfs_inode_buf_read_verify, > .verify_write = xfs_inode_buf_write_verify, > }; > > const struct xfs_buf_ops xfs_inode_buf_ra_ops = { > + .name = "xxfs_inode_ra", > .verify_read = xfs_inode_buf_readahead_verify, > .verify_write = xfs_inode_buf_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c > index a0b071d..8a53eaa 100644 > --- a/fs/xfs/libxfs/xfs_sb.c > +++ b/fs/xfs/libxfs/xfs_sb.c > @@ -679,11 +679,13 @@ xfs_sb_write_verify( > } > > const struct xfs_buf_ops xfs_sb_buf_ops = { > + .name = "xfs_sb", > .verify_read = xfs_sb_read_verify, > .verify_write = xfs_sb_write_verify, > }; > > const struct xfs_buf_ops xfs_sb_quiet_buf_ops = { > + .name = "xfs_sb_quiet", > .verify_read = xfs_sb_quiet_read_verify, > .verify_write = xfs_sb_write_verify, > }; > diff --git a/fs/xfs/libxfs/xfs_symlink_remote.c b/fs/xfs/libxfs/xfs_symlink_remote.c > index cb6fd20..2e2c671 100644 > --- a/fs/xfs/libxfs/xfs_symlink_remote.c > +++ b/fs/xfs/libxfs/xfs_symlink_remote.c > @@ -168,6 +168,7 @@ xfs_symlink_write_verify( > } > > const struct xfs_buf_ops xfs_symlink_buf_ops = { > + .name = "xfs_symlink", > .verify_read = xfs_symlink_read_verify, > .verify_write = xfs_symlink_write_verify, > }; > diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h > index c79b717..c75721a 100644 > --- a/fs/xfs/xfs_buf.h > +++ b/fs/xfs/xfs_buf.h > @@ -132,6 +132,7 @@ struct xfs_buf_map { > struct xfs_buf_map (map) = { .bm_bn = (blkno), .bm_len = (numblk) }; > > struct xfs_buf_ops { > + char *name; > void (*verify_read)(struct xfs_buf *); > void (*verify_write)(struct xfs_buf *); > }; > diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c > index 74d0e59..88693a9 100644 > --- a/fs/xfs/xfs_error.c > +++ b/fs/xfs/xfs_error.c > @@ -164,9 +164,9 @@ xfs_verifier_error( > { > struct xfs_mount *mp = bp->b_target->bt_mount; > > - xfs_alert(mp, "Metadata %s detected at %pF, block 0x%llx", > + xfs_alert(mp, "Metadata %s detected at %pF, %s block 0x%llx", > bp->b_error == -EFSBADCRC ? "CRC error" : "corruption", > - __return_address, bp->b_bn); > + __return_address, bp->b_ops->name, bp->b_bn); > > xfs_alert(mp, "Unmount and run xfs_repair"); > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From BATV+89ba7098823c58057a3d+4463+infradead.org+hch@bombadil.srs.infradead.org Thu Nov 12 06:51:28 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 38C3C7F62 for ; Thu, 12 Nov 2015 06:51:28 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2873C304039 for ; Thu, 12 Nov 2015 04:51:25 -0800 (PST) X-ASG-Debug-ID: 1447332681-04cbb0242314ef20001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id CDnPn14F8A2SALEp (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 12 Nov 2015 04:51:22 -0800 (PST) X-Barracuda-Envelope-From: BATV+89ba7098823c58057a3d+4463+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZwrLP-0000lJ-6k; Thu, 12 Nov 2015 12:51:15 +0000 Date: Thu, 12 Nov 2015 04:51:15 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: david@fromorbit.com, fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls Message-ID: <20151112125115.GA28822@infradead.org> X-ASG-Orig-Subj: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls References: <20151111192628.15056.6451.stgit@birch.djwong.org> <20151112090756.GA25685@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151112090756.GA25685@infradead.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447332682 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24329 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Thu, Nov 12, 2015 at 01:07:56AM -0800, Christoph Hellwig wrote: > Looks fine: > > Acked-by: Christoph Hellwig Actually I take this back. I had though this was the existing series with my fixes, but this one still incorrectly assumes that if reflink works dedup works as well, leading to lots of false failures on nfs. From eflorac@intellique.com Thu Nov 12 07:00:24 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 10D827F62 for ; Thu, 12 Nov 2015 07:00:24 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id F174C8F8040 for ; Thu, 12 Nov 2015 05:00:23 -0800 (PST) X-ASG-Debug-ID: 1447333221-04cb6c296a139460001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id HtXdMkkUmHgwhMxf (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 05:00:21 -0800 (PST) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id 9F6042CCE4; Thu, 12 Nov 2015 08:00:20 -0500 (EST) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail1.g1.pair.com (Postfix) with ESMTPSA id 84E692CCB6; Thu, 12 Nov 2015 08:00:19 -0500 (EST) Date: Thu, 12 Nov 2015 14:00:22 +0100 From: Emmanuel Florac To: rui li Cc: xfs@oss.sgi.com Subject: Re: xfsprogs install Message-ID: <20151112140022.7b8d8924@harpe.intellique.com> X-ASG-Orig-Subj: Re: xfsprogs install In-Reply-To: References: <20151111125021.GA28745@redhat.com> Organization: Intellique X-Mailer: Claws Mail 3.12.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1447333221 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.20 X-Barracuda-Spam-Status: No, SCORE=1.20 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA620b, BSF_SC7_SA298e, MAILTO_TO_SPAM_ADDR X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24329 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 MAILTO_TO_SPAM_ADDR URI: Includes a link to a likely spammer email 0.20 BSF_SC7_SA298e Custom Rule SA298e 1.00 BSF_SC0_SA620b Custom Rule SA620b Le Thu, 12 Nov 2015 10:21:09 +0800 rui li =C3=A9crivait: > when i run mkfs.xfs -f /dev/sda2p1 ,the error is no that file or > directory acturally /dev/sda2p1 existed > could you give me some help? Well, probably it doesn't exist then. Use the "lsblk" command or=20 "cat /proc/partitions" command to see a list of actual devices and partitions. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From bfoster@redhat.com Thu Nov 12 07:12:48 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D15367F62 for ; Thu, 12 Nov 2015 07:12:48 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id C29CD8F8033 for ; Thu, 12 Nov 2015 05:12:45 -0800 (PST) X-ASG-Debug-ID: 1447333964-04cbb0242414f500001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id qB4z7ce4Ott6HtbH (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 05:12:44 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 1374146A; Thu, 12 Nov 2015 13:12:43 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACDCh4U026091; Thu, 12 Nov 2015 08:12:43 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 1F2C6120059; Thu, 12 Nov 2015 08:12:43 -0500 (EST) Date: Thu, 12 Nov 2015 08:12:43 -0500 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs_fsr: more selinux fixes Message-ID: <20151112131242.GB5068@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs_fsr: more selinux fixes References: <5643B8B7.9030708@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5643B8B7.9030708@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447333964 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 11, 2015 at 03:52:55PM -0600, Eric Sandeen wrote: > Commit: > > 1adfe5c xfs_fsr: fix SWAPEXT failures under selinux > > attempted to fix up the fork offset under selinux, where > the temp file is created with a local attribute, but the > target file has remote attributes; this can lead to a smaller > data area in the temp inode, without enough room to swap extents > from the target inode. I remedied this by pushing the temp > file attribute to remote, but *only* if the target file's attr > was also remote. > > However, I have a case from the field where the parent dir > and the target file both have a context of: > > system_u:object_r:samba_share_t:s0 > > but new files created in the dir have a context of > > unconfined_u:object_r:samba_share_t:s0 > > This means the temp file has a smaller forkoff, and less space > in the inode for data, so we fail to swap the extents between > the two, because they don't fit. > > The following patch fixes this by allowing xfs_fsr to > kick the tempfile's attr out of local format even if the target > file's attr is local, if this will move the forkoff in the right > direction. This does pass all our fsr xfstests, though I'm not > sure we have any real coverage of fsr under selinux... > > The only functional change is the test at the very end of the > patch; the rest is comments, ascii art, and removing the > now-extraneous XFS_IOC_FSGETXATTRA ioctl. > > Signed-off-by: Eric Sandeen > --- > > diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c > index c8ef18f..68b9819 100644 > --- a/fsr/xfs_fsr.c > +++ b/fsr/xfs_fsr.c ... > /* > - * If target attr area is less than the temp's (diff < 0) > - * and the target is not local, write a big attr to > - * the temp file to knock the attr out of local format, > - * to match the target. (This should actually *increase* > - * the temp file's forkoffset when the attr moves out > - * of the inode) > + * If target attr area is less than the temp's > + * (diff < 0), write a big attr to the temp file to knock > + * the attr out of local format. > + * (This should actually *increase* the temp file's > + * forkoffset when the attr moves out of the inode) > */ > - if (diff < 0 && fsx.fsx_nextents > 0) { > + if (diff < 0) { Space before tab issue on the line above. Looks fine otherwise, but I wonder if it would also be a good idea to add an informative fsrprintf() here if we proceed when (fsx.fsx_nextents > 0)? Brian > char val[2048]; > memset(val, 'X', 2048); > if (fsetxattr(tfd, name, val, 2048, 0)) { > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Thu Nov 12 07:12:58 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CCA4B7F6B for ; Thu, 12 Nov 2015 07:12:58 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id AC4B430404E for ; Thu, 12 Nov 2015 05:12:55 -0800 (PST) X-ASG-Debug-ID: 1447333974-04cbb0242214f510001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id WF0s8pP15Z9jtWkP (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 05:12:54 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 1D8E1C0D8047 for ; Thu, 12 Nov 2015 13:12:54 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACDCrKE026138; Thu, 12 Nov 2015 08:12:53 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 6915F120059; Thu, 12 Nov 2015 08:12:53 -0500 (EST) Date: Thu, 12 Nov 2015 08:12:53 -0500 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs_repair: print XFS_WANT_CORRUPTED info with -vvv Message-ID: <20151112131252.GC5068@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs_repair: print XFS_WANT_CORRUPTED info with -vvv References: <5643F4B1.40500@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5643F4B1.40500@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447333974 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 11, 2015 at 08:08:49PM -0600, Eric Sandeen wrote: > In the kernel, the XFS_WANT_CORRUPTED_* macros print the > caller information via XFS_ERROR_REPORT, but in userspace > this is silenced, because i.e. xfs_repair's job is to find > and fix corruption, not to complain loudly about it. > > However, there are times when we would like to know if > we've hit an unexpected corruption point. To that end, > make "xfs_repair -vvv" enable noisiness from these macros, > so that they will print the function and line of the caller. > > Signed-off-by: Eric Sandeen > --- Reviewed-by: Brian Foster > > diff --git a/include/xfs_mount.h b/include/xfs_mount.h > index 5ec6866..67f3b05 100644 > --- a/include/xfs_mount.h > +++ b/include/xfs_mount.h > @@ -143,6 +143,7 @@ typedef struct xfs_perag { > #define LIBXFS_MOUNT_32BITINOOPT 0x0004 > #define LIBXFS_MOUNT_COMPAT_ATTR 0x0008 > #define LIBXFS_MOUNT_ATTR2 0x0010 > +#define LIBXFS_MOUNT_WANT_CORRUPTED 0x0020 > > #define LIBXFS_BHASHSIZE(sbp) (1<<10) > > diff --git a/libxfs/libxfs_priv.h b/libxfs/libxfs_priv.h > index 9135aac..0f4d3e5 100644 > --- a/libxfs/libxfs_priv.h > +++ b/libxfs/libxfs_priv.h > @@ -147,10 +147,25 @@ enum ce { CE_DEBUG, CE_CONT, CE_NOTE, CE_WARN, CE_ALERT, CE_PANIC }; > #define XFS_TRANS_RESERVE_QUOTA_NBLKS(mp,tp,ip,nblks,ninos,fl) 0 > #define XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp,tp,ip,nblks,ninos,fl) 0 > #define XFS_TEST_ERROR(expr,a,b,c) ( expr ) > -#define XFS_WANT_CORRUPTED_GOTO(mp, expr, l) \ > - { (mp) = (mp); if (!(expr)) { error = -EFSCORRUPTED; goto l; } } > -#define XFS_WANT_CORRUPTED_RETURN(mp, expr) \ > - { (mp) = (mp); if (!(expr)) { return -EFSCORRUPTED; } } > +#define XFS_WANT_CORRUPTED_GOTO(mp, expr, l) \ > +{ \ > + if (!(expr)) { \ > + if ((mp)->m_flags & LIBXFS_MOUNT_WANT_CORRUPTED) \ > + printf("WANT_CORRUPTED_GOTO at %s:%d\n", \ > + __func__, __LINE__); \ > + error = -EFSCORRUPTED; \ > + goto l; \ > + } \ > +} > +#define XFS_WANT_CORRUPTED_RETURN(mp, expr) \ > +{ \ > + if (!(expr)) { \ > + if ((mp)->m_flags & LIBXFS_MOUNT_WANT_CORRUPTED) \ > + printf("WANT_CORRUPTED_RETURN at %s:%d\n", \ > + __func__, __LINE__); \ > + return -EFSCORRUPTED; \ > + } \ > +} > > #ifdef __GNUC__ > #define __return_address __builtin_return_address(0) > diff --git a/man/man8/xfs_repair.8 b/man/man8/xfs_repair.8 > index 0394c50..1b4d9e3 100644 > --- a/man/man8/xfs_repair.8 > +++ b/man/man8/xfs_repair.8 > @@ -158,7 +158,7 @@ outputs its progress every 15 minutes. Reporting is only activated when > ag_stride is enabled. > .TP > .B \-v > -Verbose output. > +Verbose output. May be specified multiple times to increase verbosity. > .TP > .B \-d > Repair dangerously. Allow > diff --git a/repair/xfs_repair.c b/repair/xfs_repair.c > index bed2ff5..1aeac5b 100644 > --- a/repair/xfs_repair.c > +++ b/repair/xfs_repair.c > @@ -695,6 +695,10 @@ main(int argc, char **argv) > } > mp->m_log = &log; > > + /* Spit out function & line on these corruption macros */ > + if (verbose > 2) > + mp->m_flags |= LIBXFS_MOUNT_WANT_CORRUPTED; > + > /* > * set XFS-independent status vars from the mount/sb structure > */ > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Thu Nov 12 07:41:27 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 157327F62 for ; Thu, 12 Nov 2015 07:41:27 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 96CDAAC002 for ; Thu, 12 Nov 2015 05:41:26 -0800 (PST) X-ASG-Debug-ID: 1447335682-04bdf03f0313f790001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id iMuoidaTh1T0OZmj for ; Thu, 12 Nov 2015 05:41:23 -0800 (PST) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id A149061451CC for ; Thu, 12 Nov 2015 07:41:22 -0600 (CST) Subject: Re: [PATCH] xfs: print name of verifier if it fails To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs: print name of verifier if it fails References: <5643BD7D.4000307@redhat.com> <20151112124046.GA5068@bfoster.bfoster> From: Eric Sandeen Message-ID: <56449702.4010502@sandeen.net> Date: Thu, 12 Nov 2015 07:41:22 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151112124046.GA5068@bfoster.bfoster> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1447335682 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24330 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 11/12/15 6:40 AM, Brian Foster wrote: > On Wed, Nov 11, 2015 at 04:13:17PM -0600, Eric Sandeen wrote: >> This adds a name to each buf_ops structure, so that if >> a verifier fails we can print the type of verifier that >> failed it. Should be a slight debugging aid, I hope. >> >> Signed-off-by: Eric Sandeen >> --- > > Seems harmless, but is this really necessary when we dump a stack trace? > I suppose that only happens if the error level is set appropriately. > Another option might be to use _RET_IP_. It might not be as pretty, but > we already use it all over the place for tracepoints and such. The main motivator for the patch is userspace, where we have no dump_stack, error level, etc. This patch is just to keep things in sync in libxfs. Thanks, -Eric > Brian > >> >> diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c >> index 3479294..e1e7fe3 100644 >> --- a/fs/xfs/libxfs/xfs_alloc.c >> +++ b/fs/xfs/libxfs/xfs_alloc.c >> @@ -535,6 +535,7 @@ xfs_agfl_write_verify( >> } >> >> const struct xfs_buf_ops xfs_agfl_buf_ops = { >> + .name = "xfs_agfl", >> .verify_read = xfs_agfl_read_verify, >> .verify_write = xfs_agfl_write_verify, >> }; >> @@ -2339,6 +2340,7 @@ xfs_agf_write_verify( >> } >> >> const struct xfs_buf_ops xfs_agf_buf_ops = { >> + .name = "xfs_agf", >> .verify_read = xfs_agf_read_verify, >> .verify_write = xfs_agf_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_alloc_btree.c b/fs/xfs/libxfs/xfs_alloc_btree.c >> index 90de071..eb8bbfe 100644 >> --- a/fs/xfs/libxfs/xfs_alloc_btree.c >> +++ b/fs/xfs/libxfs/xfs_alloc_btree.c >> @@ -379,6 +379,7 @@ xfs_allocbt_write_verify( >> } >> >> const struct xfs_buf_ops xfs_allocbt_buf_ops = { >> + .name = "xfs_allocbt", >> .verify_read = xfs_allocbt_read_verify, >> .verify_write = xfs_allocbt_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c >> index aa187f7..01a5ecf 100644 >> --- a/fs/xfs/libxfs/xfs_attr_leaf.c >> +++ b/fs/xfs/libxfs/xfs_attr_leaf.c >> @@ -328,6 +328,7 @@ xfs_attr3_leaf_read_verify( >> } >> >> const struct xfs_buf_ops xfs_attr3_leaf_buf_ops = { >> + .name = "xfs_attr3_leaf", >> .verify_read = xfs_attr3_leaf_read_verify, >> .verify_write = xfs_attr3_leaf_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c >> index 5ab95ff..f3ed9bf 100644 >> --- a/fs/xfs/libxfs/xfs_attr_remote.c >> +++ b/fs/xfs/libxfs/xfs_attr_remote.c >> @@ -201,6 +201,7 @@ xfs_attr3_rmt_write_verify( >> } >> >> const struct xfs_buf_ops xfs_attr3_rmt_buf_ops = { >> + .name = "xfs_attr3_rmt", >> .verify_read = xfs_attr3_rmt_read_verify, >> .verify_write = xfs_attr3_rmt_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c >> index 6b0cf65..1637c37 100644 >> --- a/fs/xfs/libxfs/xfs_bmap_btree.c >> +++ b/fs/xfs/libxfs/xfs_bmap_btree.c >> @@ -720,6 +720,7 @@ xfs_bmbt_write_verify( >> } >> >> const struct xfs_buf_ops xfs_bmbt_buf_ops = { >> + .name = "xfs_bmbt", >> .verify_read = xfs_bmbt_read_verify, >> .verify_write = xfs_bmbt_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c >> index e89a0f8..097bf77 100644 >> --- a/fs/xfs/libxfs/xfs_da_btree.c >> +++ b/fs/xfs/libxfs/xfs_da_btree.c >> @@ -245,6 +245,7 @@ xfs_da3_node_read_verify( >> } >> >> const struct xfs_buf_ops xfs_da3_node_buf_ops = { >> + .name = "xfs_da3_node", >> .verify_read = xfs_da3_node_read_verify, >> .verify_write = xfs_da3_node_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c >> index 9c10e2b..aa17cb7 100644 >> --- a/fs/xfs/libxfs/xfs_dir2_block.c >> +++ b/fs/xfs/libxfs/xfs_dir2_block.c >> @@ -123,6 +123,7 @@ xfs_dir3_block_write_verify( >> } >> >> const struct xfs_buf_ops xfs_dir3_block_buf_ops = { >> + .name = "xfs_dir3_block", >> .verify_read = xfs_dir3_block_read_verify, >> .verify_write = xfs_dir3_block_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_dir2_data.c b/fs/xfs/libxfs/xfs_dir2_data.c >> index af71a84..725fc78 100644 >> --- a/fs/xfs/libxfs/xfs_dir2_data.c >> +++ b/fs/xfs/libxfs/xfs_dir2_data.c >> @@ -305,11 +305,13 @@ xfs_dir3_data_write_verify( >> } >> >> const struct xfs_buf_ops xfs_dir3_data_buf_ops = { >> + .name = "xfs_dir3_data", >> .verify_read = xfs_dir3_data_read_verify, >> .verify_write = xfs_dir3_data_write_verify, >> }; >> >> static const struct xfs_buf_ops xfs_dir3_data_reada_buf_ops = { >> + .name = "xfs_dir3_data_reada", >> .verify_read = xfs_dir3_data_reada_verify, >> .verify_write = xfs_dir3_data_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_dir2_leaf.c b/fs/xfs/libxfs/xfs_dir2_leaf.c >> index 3923e1f..b887fb2 100644 >> --- a/fs/xfs/libxfs/xfs_dir2_leaf.c >> +++ b/fs/xfs/libxfs/xfs_dir2_leaf.c >> @@ -245,11 +245,13 @@ xfs_dir3_leafn_write_verify( >> } >> >> const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops = { >> + .name = "xfs_dir3_leaf1", >> .verify_read = xfs_dir3_leaf1_read_verify, >> .verify_write = xfs_dir3_leaf1_write_verify, >> }; >> >> const struct xfs_buf_ops xfs_dir3_leafn_buf_ops = { >> + .name = "xfs_dir3_leafn", >> .verify_read = xfs_dir3_leafn_read_verify, >> .verify_write = xfs_dir3_leafn_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c >> index 70b0cb2..63ee03d 100644 >> --- a/fs/xfs/libxfs/xfs_dir2_node.c >> +++ b/fs/xfs/libxfs/xfs_dir2_node.c >> @@ -150,6 +150,7 @@ xfs_dir3_free_write_verify( >> } >> >> const struct xfs_buf_ops xfs_dir3_free_buf_ops = { >> + .name = "xfs_dir3_free", >> .verify_read = xfs_dir3_free_read_verify, >> .verify_write = xfs_dir3_free_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_dquot_buf.c b/fs/xfs/libxfs/xfs_dquot_buf.c >> index 5331b7f..11cefb2 100644 >> --- a/fs/xfs/libxfs/xfs_dquot_buf.c >> +++ b/fs/xfs/libxfs/xfs_dquot_buf.c >> @@ -282,6 +282,7 @@ xfs_dquot_buf_write_verify( >> } >> >> const struct xfs_buf_ops xfs_dquot_buf_ops = { >> + .name = "xfs_dquot", >> .verify_read = xfs_dquot_buf_read_verify, >> .verify_write = xfs_dquot_buf_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c >> index 70c1db9..66d702e 100644 >> --- a/fs/xfs/libxfs/xfs_ialloc.c >> +++ b/fs/xfs/libxfs/xfs_ialloc.c >> @@ -2572,6 +2572,7 @@ xfs_agi_write_verify( >> } >> >> const struct xfs_buf_ops xfs_agi_buf_ops = { >> + .name = "xfs_agi", >> .verify_read = xfs_agi_read_verify, >> .verify_write = xfs_agi_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c >> index f39b285..6dd44f9 100644 >> --- a/fs/xfs/libxfs/xfs_ialloc_btree.c >> +++ b/fs/xfs/libxfs/xfs_ialloc_btree.c >> @@ -304,6 +304,7 @@ xfs_inobt_write_verify( >> } >> >> const struct xfs_buf_ops xfs_inobt_buf_ops = { >> + .name = "xfs_inobt", >> .verify_read = xfs_inobt_read_verify, >> .verify_write = xfs_inobt_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c >> index 268c00f..1b8d98a 100644 >> --- a/fs/xfs/libxfs/xfs_inode_buf.c >> +++ b/fs/xfs/libxfs/xfs_inode_buf.c >> @@ -132,11 +132,13 @@ xfs_inode_buf_write_verify( >> } >> >> const struct xfs_buf_ops xfs_inode_buf_ops = { >> + .name = "xfs_inode", >> .verify_read = xfs_inode_buf_read_verify, >> .verify_write = xfs_inode_buf_write_verify, >> }; >> >> const struct xfs_buf_ops xfs_inode_buf_ra_ops = { >> + .name = "xxfs_inode_ra", >> .verify_read = xfs_inode_buf_readahead_verify, >> .verify_write = xfs_inode_buf_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c >> index a0b071d..8a53eaa 100644 >> --- a/fs/xfs/libxfs/xfs_sb.c >> +++ b/fs/xfs/libxfs/xfs_sb.c >> @@ -679,11 +679,13 @@ xfs_sb_write_verify( >> } >> >> const struct xfs_buf_ops xfs_sb_buf_ops = { >> + .name = "xfs_sb", >> .verify_read = xfs_sb_read_verify, >> .verify_write = xfs_sb_write_verify, >> }; >> >> const struct xfs_buf_ops xfs_sb_quiet_buf_ops = { >> + .name = "xfs_sb_quiet", >> .verify_read = xfs_sb_quiet_read_verify, >> .verify_write = xfs_sb_write_verify, >> }; >> diff --git a/fs/xfs/libxfs/xfs_symlink_remote.c b/fs/xfs/libxfs/xfs_symlink_remote.c >> index cb6fd20..2e2c671 100644 >> --- a/fs/xfs/libxfs/xfs_symlink_remote.c >> +++ b/fs/xfs/libxfs/xfs_symlink_remote.c >> @@ -168,6 +168,7 @@ xfs_symlink_write_verify( >> } >> >> const struct xfs_buf_ops xfs_symlink_buf_ops = { >> + .name = "xfs_symlink", >> .verify_read = xfs_symlink_read_verify, >> .verify_write = xfs_symlink_write_verify, >> }; >> diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h >> index c79b717..c75721a 100644 >> --- a/fs/xfs/xfs_buf.h >> +++ b/fs/xfs/xfs_buf.h >> @@ -132,6 +132,7 @@ struct xfs_buf_map { >> struct xfs_buf_map (map) = { .bm_bn = (blkno), .bm_len = (numblk) }; >> >> struct xfs_buf_ops { >> + char *name; >> void (*verify_read)(struct xfs_buf *); >> void (*verify_write)(struct xfs_buf *); >> }; >> diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c >> index 74d0e59..88693a9 100644 >> --- a/fs/xfs/xfs_error.c >> +++ b/fs/xfs/xfs_error.c >> @@ -164,9 +164,9 @@ xfs_verifier_error( >> { >> struct xfs_mount *mp = bp->b_target->bt_mount; >> >> - xfs_alert(mp, "Metadata %s detected at %pF, block 0x%llx", >> + xfs_alert(mp, "Metadata %s detected at %pF, %s block 0x%llx", >> bp->b_error == -EFSBADCRC ? "CRC error" : "corruption", >> - __return_address, bp->b_bn); >> + __return_address, bp->b_ops->name, bp->b_bn); >> >> xfs_alert(mp, "Unmount and run xfs_repair"); >> >> >> _______________________________________________ >> xfs mailing list >> xfs@oss.sgi.com >> http://oss.sgi.com/mailman/listinfo/xfs > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > From bfoster@redhat.com Thu Nov 12 07:55:45 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0D2837F62 for ; Thu, 12 Nov 2015 07:55:45 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id EE484304032 for ; Thu, 12 Nov 2015 05:55:44 -0800 (PST) X-ASG-Debug-ID: 1447336542-04cb6c296a13a730001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id yzkV9BJkftYArSkT (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 05:55:43 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id D1816A4526; Thu, 12 Nov 2015 13:55:42 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACDtgTF009404; Thu, 12 Nov 2015 08:55:42 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id CE0FB120059; Thu, 12 Nov 2015 08:55:41 -0500 (EST) Date: Thu, 12 Nov 2015 08:55:41 -0500 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: print name of verifier if it fails Message-ID: <20151112135541.GD5068@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: print name of verifier if it fails References: <5643BD7D.4000307@redhat.com> <20151112124046.GA5068@bfoster.bfoster> <56449702.4010502@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56449702.4010502@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447336543 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Nov 12, 2015 at 07:41:22AM -0600, Eric Sandeen wrote: > > > On 11/12/15 6:40 AM, Brian Foster wrote: > > On Wed, Nov 11, 2015 at 04:13:17PM -0600, Eric Sandeen wrote: > >> This adds a name to each buf_ops structure, so that if > >> a verifier fails we can print the type of verifier that > >> failed it. Should be a slight debugging aid, I hope. > >> > >> Signed-off-by: Eric Sandeen > >> --- > > > > Seems harmless, but is this really necessary when we dump a stack trace? > > I suppose that only happens if the error level is set appropriately. > > Another option might be to use _RET_IP_. It might not be as pretty, but > > we already use it all over the place for tracepoints and such. > > The main motivator for the patch is userspace, where we have no dump_stack, > error level, etc. This patch is just to keep things in sync in libxfs. > Ah, sounds good to me: Reviewed-by: Brian Foster > Thanks, > -Eric > > > Brian > > > >> > >> diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c > >> index 3479294..e1e7fe3 100644 > >> --- a/fs/xfs/libxfs/xfs_alloc.c > >> +++ b/fs/xfs/libxfs/xfs_alloc.c > >> @@ -535,6 +535,7 @@ xfs_agfl_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_agfl_buf_ops = { > >> + .name = "xfs_agfl", > >> .verify_read = xfs_agfl_read_verify, > >> .verify_write = xfs_agfl_write_verify, > >> }; > >> @@ -2339,6 +2340,7 @@ xfs_agf_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_agf_buf_ops = { > >> + .name = "xfs_agf", > >> .verify_read = xfs_agf_read_verify, > >> .verify_write = xfs_agf_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_alloc_btree.c b/fs/xfs/libxfs/xfs_alloc_btree.c > >> index 90de071..eb8bbfe 100644 > >> --- a/fs/xfs/libxfs/xfs_alloc_btree.c > >> +++ b/fs/xfs/libxfs/xfs_alloc_btree.c > >> @@ -379,6 +379,7 @@ xfs_allocbt_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_allocbt_buf_ops = { > >> + .name = "xfs_allocbt", > >> .verify_read = xfs_allocbt_read_verify, > >> .verify_write = xfs_allocbt_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c > >> index aa187f7..01a5ecf 100644 > >> --- a/fs/xfs/libxfs/xfs_attr_leaf.c > >> +++ b/fs/xfs/libxfs/xfs_attr_leaf.c > >> @@ -328,6 +328,7 @@ xfs_attr3_leaf_read_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_attr3_leaf_buf_ops = { > >> + .name = "xfs_attr3_leaf", > >> .verify_read = xfs_attr3_leaf_read_verify, > >> .verify_write = xfs_attr3_leaf_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c > >> index 5ab95ff..f3ed9bf 100644 > >> --- a/fs/xfs/libxfs/xfs_attr_remote.c > >> +++ b/fs/xfs/libxfs/xfs_attr_remote.c > >> @@ -201,6 +201,7 @@ xfs_attr3_rmt_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_attr3_rmt_buf_ops = { > >> + .name = "xfs_attr3_rmt", > >> .verify_read = xfs_attr3_rmt_read_verify, > >> .verify_write = xfs_attr3_rmt_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c > >> index 6b0cf65..1637c37 100644 > >> --- a/fs/xfs/libxfs/xfs_bmap_btree.c > >> +++ b/fs/xfs/libxfs/xfs_bmap_btree.c > >> @@ -720,6 +720,7 @@ xfs_bmbt_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_bmbt_buf_ops = { > >> + .name = "xfs_bmbt", > >> .verify_read = xfs_bmbt_read_verify, > >> .verify_write = xfs_bmbt_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c > >> index e89a0f8..097bf77 100644 > >> --- a/fs/xfs/libxfs/xfs_da_btree.c > >> +++ b/fs/xfs/libxfs/xfs_da_btree.c > >> @@ -245,6 +245,7 @@ xfs_da3_node_read_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_da3_node_buf_ops = { > >> + .name = "xfs_da3_node", > >> .verify_read = xfs_da3_node_read_verify, > >> .verify_write = xfs_da3_node_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c > >> index 9c10e2b..aa17cb7 100644 > >> --- a/fs/xfs/libxfs/xfs_dir2_block.c > >> +++ b/fs/xfs/libxfs/xfs_dir2_block.c > >> @@ -123,6 +123,7 @@ xfs_dir3_block_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_dir3_block_buf_ops = { > >> + .name = "xfs_dir3_block", > >> .verify_read = xfs_dir3_block_read_verify, > >> .verify_write = xfs_dir3_block_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_dir2_data.c b/fs/xfs/libxfs/xfs_dir2_data.c > >> index af71a84..725fc78 100644 > >> --- a/fs/xfs/libxfs/xfs_dir2_data.c > >> +++ b/fs/xfs/libxfs/xfs_dir2_data.c > >> @@ -305,11 +305,13 @@ xfs_dir3_data_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_dir3_data_buf_ops = { > >> + .name = "xfs_dir3_data", > >> .verify_read = xfs_dir3_data_read_verify, > >> .verify_write = xfs_dir3_data_write_verify, > >> }; > >> > >> static const struct xfs_buf_ops xfs_dir3_data_reada_buf_ops = { > >> + .name = "xfs_dir3_data_reada", > >> .verify_read = xfs_dir3_data_reada_verify, > >> .verify_write = xfs_dir3_data_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_dir2_leaf.c b/fs/xfs/libxfs/xfs_dir2_leaf.c > >> index 3923e1f..b887fb2 100644 > >> --- a/fs/xfs/libxfs/xfs_dir2_leaf.c > >> +++ b/fs/xfs/libxfs/xfs_dir2_leaf.c > >> @@ -245,11 +245,13 @@ xfs_dir3_leafn_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops = { > >> + .name = "xfs_dir3_leaf1", > >> .verify_read = xfs_dir3_leaf1_read_verify, > >> .verify_write = xfs_dir3_leaf1_write_verify, > >> }; > >> > >> const struct xfs_buf_ops xfs_dir3_leafn_buf_ops = { > >> + .name = "xfs_dir3_leafn", > >> .verify_read = xfs_dir3_leafn_read_verify, > >> .verify_write = xfs_dir3_leafn_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c > >> index 70b0cb2..63ee03d 100644 > >> --- a/fs/xfs/libxfs/xfs_dir2_node.c > >> +++ b/fs/xfs/libxfs/xfs_dir2_node.c > >> @@ -150,6 +150,7 @@ xfs_dir3_free_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_dir3_free_buf_ops = { > >> + .name = "xfs_dir3_free", > >> .verify_read = xfs_dir3_free_read_verify, > >> .verify_write = xfs_dir3_free_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_dquot_buf.c b/fs/xfs/libxfs/xfs_dquot_buf.c > >> index 5331b7f..11cefb2 100644 > >> --- a/fs/xfs/libxfs/xfs_dquot_buf.c > >> +++ b/fs/xfs/libxfs/xfs_dquot_buf.c > >> @@ -282,6 +282,7 @@ xfs_dquot_buf_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_dquot_buf_ops = { > >> + .name = "xfs_dquot", > >> .verify_read = xfs_dquot_buf_read_verify, > >> .verify_write = xfs_dquot_buf_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c > >> index 70c1db9..66d702e 100644 > >> --- a/fs/xfs/libxfs/xfs_ialloc.c > >> +++ b/fs/xfs/libxfs/xfs_ialloc.c > >> @@ -2572,6 +2572,7 @@ xfs_agi_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_agi_buf_ops = { > >> + .name = "xfs_agi", > >> .verify_read = xfs_agi_read_verify, > >> .verify_write = xfs_agi_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c > >> index f39b285..6dd44f9 100644 > >> --- a/fs/xfs/libxfs/xfs_ialloc_btree.c > >> +++ b/fs/xfs/libxfs/xfs_ialloc_btree.c > >> @@ -304,6 +304,7 @@ xfs_inobt_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_inobt_buf_ops = { > >> + .name = "xfs_inobt", > >> .verify_read = xfs_inobt_read_verify, > >> .verify_write = xfs_inobt_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c > >> index 268c00f..1b8d98a 100644 > >> --- a/fs/xfs/libxfs/xfs_inode_buf.c > >> +++ b/fs/xfs/libxfs/xfs_inode_buf.c > >> @@ -132,11 +132,13 @@ xfs_inode_buf_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_inode_buf_ops = { > >> + .name = "xfs_inode", > >> .verify_read = xfs_inode_buf_read_verify, > >> .verify_write = xfs_inode_buf_write_verify, > >> }; > >> > >> const struct xfs_buf_ops xfs_inode_buf_ra_ops = { > >> + .name = "xxfs_inode_ra", > >> .verify_read = xfs_inode_buf_readahead_verify, > >> .verify_write = xfs_inode_buf_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c > >> index a0b071d..8a53eaa 100644 > >> --- a/fs/xfs/libxfs/xfs_sb.c > >> +++ b/fs/xfs/libxfs/xfs_sb.c > >> @@ -679,11 +679,13 @@ xfs_sb_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_sb_buf_ops = { > >> + .name = "xfs_sb", > >> .verify_read = xfs_sb_read_verify, > >> .verify_write = xfs_sb_write_verify, > >> }; > >> > >> const struct xfs_buf_ops xfs_sb_quiet_buf_ops = { > >> + .name = "xfs_sb_quiet", > >> .verify_read = xfs_sb_quiet_read_verify, > >> .verify_write = xfs_sb_write_verify, > >> }; > >> diff --git a/fs/xfs/libxfs/xfs_symlink_remote.c b/fs/xfs/libxfs/xfs_symlink_remote.c > >> index cb6fd20..2e2c671 100644 > >> --- a/fs/xfs/libxfs/xfs_symlink_remote.c > >> +++ b/fs/xfs/libxfs/xfs_symlink_remote.c > >> @@ -168,6 +168,7 @@ xfs_symlink_write_verify( > >> } > >> > >> const struct xfs_buf_ops xfs_symlink_buf_ops = { > >> + .name = "xfs_symlink", > >> .verify_read = xfs_symlink_read_verify, > >> .verify_write = xfs_symlink_write_verify, > >> }; > >> diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h > >> index c79b717..c75721a 100644 > >> --- a/fs/xfs/xfs_buf.h > >> +++ b/fs/xfs/xfs_buf.h > >> @@ -132,6 +132,7 @@ struct xfs_buf_map { > >> struct xfs_buf_map (map) = { .bm_bn = (blkno), .bm_len = (numblk) }; > >> > >> struct xfs_buf_ops { > >> + char *name; > >> void (*verify_read)(struct xfs_buf *); > >> void (*verify_write)(struct xfs_buf *); > >> }; > >> diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c > >> index 74d0e59..88693a9 100644 > >> --- a/fs/xfs/xfs_error.c > >> +++ b/fs/xfs/xfs_error.c > >> @@ -164,9 +164,9 @@ xfs_verifier_error( > >> { > >> struct xfs_mount *mp = bp->b_target->bt_mount; > >> > >> - xfs_alert(mp, "Metadata %s detected at %pF, block 0x%llx", > >> + xfs_alert(mp, "Metadata %s detected at %pF, %s block 0x%llx", > >> bp->b_error == -EFSBADCRC ? "CRC error" : "corruption", > >> - __return_address, bp->b_bn); > >> + __return_address, bp->b_ops->name, bp->b_bn); > >> > >> xfs_alert(mp, "Unmount and run xfs_repair"); > >> > >> > >> _______________________________________________ > >> xfs mailing list > >> xfs@oss.sgi.com > >> http://oss.sgi.com/mailman/listinfo/xfs > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs > > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From penguin-kernel@I-love.SAKURA.ne.jp Thu Nov 12 08:12:53 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D90037F62 for ; Thu, 12 Nov 2015 08:12:53 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id B6476304043 for ; Thu, 12 Nov 2015 06:12:50 -0800 (PST) X-ASG-Debug-ID: 1447337561-04cbb02423150840001-NocioJ Received: from www262.sakura.ne.jp (www262.sakura.ne.jp [202.181.97.72]) by cuda.sgi.com with ESMTP id ue798DcDINYxiChk (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO) for ; Thu, 12 Nov 2015 06:12:42 -0800 (PST) X-Barracuda-Envelope-From: penguin-kernel@I-love.SAKURA.ne.jp X-Barracuda-Apparent-Source-IP: 202.181.97.72 Received: from fsav402.sakura.ne.jp (fsav402.sakura.ne.jp [133.242.250.101]) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id tACECZW6028251; Thu, 12 Nov 2015 23:12:35 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav402.sakura.ne.jp (F-Secure/fsigk_smtp/522/fsav402.sakura.ne.jp); Thu, 12 Nov 2015 23:12:35 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/522/fsav402.sakura.ne.jp) Received: from [192.168.1.8] (softbank126094077227.bbtec.net [126.94.77.227]) (authenticated bits=0) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id tACECNOQ028171 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 12 Nov 2015 23:12:35 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Subject: Re: memory reclaim problems on fs usage To: =?UTF-8?Q?Arkadiusz_Mi=c5=9bkiewicz?= X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage References: <201511102313.36685.arekm@maven.pl> <201511111719.44035.arekm@maven.pl> <201511120719.EBF35970.OtSOHOVFJMFQFL@I-love.SAKURA.ne.jp> <201511120706.10739.arekm@maven.pl> Cc: linux-mm@kvack.org, xfs@oss.sgi.com From: Tetsuo Handa Message-ID: <56449E44.7020407@I-love.SAKURA.ne.jp> Date: Thu, 12 Nov 2015 23:12:20 +0900 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <201511120706.10739.arekm@maven.pl> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Barracuda-Connect: www262.sakura.ne.jp[202.181.97.72] X-Barracuda-Start-Time: 1447337562 X-Barracuda-Encrypted: DHE-RSA-CAMELLIA256-SHA X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24330 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 2015/11/12 15:06, Arkadiusz Miśkiewicz wrote: > On Wednesday 11 of November 2015, Tetsuo Handa wrote: >> Arkadiusz Mi?kiewicz wrote: >>> This patch is against which tree? (tried 4.1, 4.2 and 4.3) >> >> Oops. Whitespace-damaged. This patch is for vanilla 4.1.2. >> Reposting with one condition corrected. > > Here is log: > > http://ixion.pld-linux.org/~arekm/log-mm-1.txt.gz > > Uncompresses is 1.4MB, so not posting here. > Thank you for the log. The result is unexpected for me. What I feel strange is that free: remained below min: level. While GFP_ATOMIC allocations can access memory reserves, I think that these free: values are too small. Memory allocated by GFP_ATOMIC should be released shortly, or any __GFP_WAIT allocations would stall for long. [ 8633.753528] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:59008kB inactive_anon:75240kB active_file:14712kB inactive_file:3256960kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:20kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697520kB slab_unreclaimable:274524kB kernel_stack:2000kB pagetables:2088kB unstable:0kB bounce:0kB free_pcp:1072kB local_pcp:672kB free_cma:128kB writeback_tmp:0kB pages_scanned:176 all_unreclaimable? no [ 8678.467783] Node 0 Normal free:228kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3244288kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:4kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194712kB kernel_stack:1968kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:796kB local_pcp:64kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9460.400303] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9462.401840] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9464.403368] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9466.404900] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9468.406432] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9470.407964] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9472.409498] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9474.411031] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9476.412561] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9478.414094] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9480.415627] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9482.417161] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9484.418691] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9486.420224] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9488.421755] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9490.423290] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9492.424822] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9494.426353] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9496.427886] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9498.429419] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9500.430955] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3241920kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697376kB slab_unreclaimable:194860kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:584kB local_pcp:584kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9502.432503] Node 0 Normal free:40kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3240344kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697304kB slab_unreclaimable:194896kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:20 all_unreclaimable? no [ 9504.434015] Node 0 Normal free:404kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3238768kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697304kB slab_unreclaimable:194928kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:20 all_unreclaimable? no [ 9506.435566] Node 0 Normal free:280kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3237192kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697304kB slab_unreclaimable:194960kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:68kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:20 all_unreclaimable? no [ 9508.437089] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3235616kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697304kB slab_unreclaimable:194972kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:20 all_unreclaimable? no [ 9510.438640] Node 0 Normal free:200kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3234040kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697232kB slab_unreclaimable:194980kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:136kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no [ 9512.440155] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3232464kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697232kB slab_unreclaimable:194984kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:20 all_unreclaimable? no [ 9514.441700] Node 0 Normal free:616kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3230888kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697232kB slab_unreclaimable:194996kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:148kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:20 all_unreclaimable? no [ 9516.443219] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3229312kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697232kB slab_unreclaimable:195040kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:20 all_unreclaimable? no [ 9518.444745] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3227736kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697160kB slab_unreclaimable:195076kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:20 all_unreclaimable? no [ 9520.446278] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3226164kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697160kB slab_unreclaimable:195104kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:16 all_unreclaimable? no [ 9522.447819] Node 0 Normal free:412kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3224596kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697156kB slab_unreclaimable:195132kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:68kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:16 all_unreclaimable? no [ 9524.449349] Node 0 Normal free:1544kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3223028kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697088kB slab_unreclaimable:195152kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:12kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:16 all_unreclaimable? no [ 9526.450875] Node 0 Normal free:404kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3221460kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697080kB slab_unreclaimable:195196kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:16 all_unreclaimable? no [ 9528.452403] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3219892kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697080kB slab_unreclaimable:195228kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:16 all_unreclaimable? no [ 9530.453942] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3218324kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697080kB slab_unreclaimable:195248kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:16 all_unreclaimable? no [ 9532.455470] Node 0 Normal free:348kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3216756kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697012kB slab_unreclaimable:195272kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:88kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:16 all_unreclaimable? no [ 9534.457005] Node 0 Normal free:1268kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3215188kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697012kB slab_unreclaimable:195300kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:16 all_unreclaimable? no [ 9536.458545] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3213620kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:697008kB slab_unreclaimable:195316kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:16 all_unreclaimable? no [ 9538.460069] Node 0 Normal free:0kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3212052kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:696952kB slab_unreclaimable:195352kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:16 all_unreclaimable? no [ 9540.461626] Node 0 Normal free:128kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3210484kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:696952kB slab_unreclaimable:195356kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:16 all_unreclaimable? no [ 9542.463166] Node 0 Normal free:1696kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3208924kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:696952kB slab_unreclaimable:195348kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:128kB writeback_tmp:0kB pages_scanned:12 all_unreclaimable? no [ 9544.465161] Node 0 Normal free:2756kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3207364kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:696948kB slab_unreclaimable:195348kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:112kB local_pcp:112kB free_cma:128kB writeback_tmp:0kB pages_scanned:12 all_unreclaimable? no [ 9544.465338] Node 0 Normal free:2756kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3207364kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:696948kB slab_unreclaimable:195348kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:112kB local_pcp:112kB free_cma:128kB writeback_tmp:0kB pages_scanned:12 all_unreclaimable? no [ 9544.465498] Node 0 Normal free:2756kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3207364kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:696948kB slab_unreclaimable:195348kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:112kB local_pcp:112kB free_cma:128kB writeback_tmp:0kB pages_scanned:12 all_unreclaimable? no [ 9544.465662] Node 0 Normal free:2756kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3207364kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:696948kB slab_unreclaimable:195348kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:112kB local_pcp:112kB free_cma:128kB writeback_tmp:0kB pages_scanned:12 all_unreclaimable? no [ 9544.465825] Node 0 Normal free:2756kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3207364kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:696948kB slab_unreclaimable:195348kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:112kB local_pcp:112kB free_cma:128kB writeback_tmp:0kB pages_scanned:12 all_unreclaimable? no [ 9544.465984] Node 0 Normal free:2756kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3207364kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:696948kB slab_unreclaimable:195348kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:112kB local_pcp:112kB free_cma:128kB writeback_tmp:0kB pages_scanned:12 all_unreclaimable? no [ 9544.466143] Node 0 Normal free:2756kB min:7104kB low:8880kB high:10656kB active_anon:58992kB inactive_anon:75240kB active_file:14732kB inactive_file:3207364kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:5242880kB managed:5109980kB mlocked:0kB dirty:0kB writeback:0kB mapped:7368kB shmem:0kB slab_reclaimable:696948kB slab_unreclaimable:195348kB kernel_stack:1920kB pagetables:2084kB unstable:0kB bounce:0kB free_pcp:112kB local_pcp:112kB free_cma:128kB writeback_tmp:0kB pages_scanned:12 all_unreclaimable? no There is no OOM victims thus ALLOC_NO_WATERMARKS is not by TIF_MEMDIE. There are many stalls which lasted for finite period. Sometimes the system slowed down, but it was not a livelock. [ 1065.668820] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1075.676226] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 1085.683607] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 1095.690955] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 1105.698273] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 1115.705598] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 1125.712926] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 1145.727590] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1155.734973] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1165.742333] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1175.749707] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1185.757076] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 1195.764440] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1205.771807] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1215.779177] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1235.793909] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 1245.801276] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1255.808647] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1275.823377] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1285.830754] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1295.838130] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 1305.845492] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1315.852860] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1325.860228] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1335.867595] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1345.874966] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 1365.889706] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 1375.897073] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1385.904443] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1405.919177] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 1415.926283] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1425.933051] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1435.939906] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1445.947270] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1455.954635] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1465.961996] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1475.969365] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1485.976728] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1495.984092] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1505.991462] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1515.998823] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1526.006189] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1536.013556] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1556.028246] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1576.042951] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 1586.050273] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1596.057617] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 1606.064958] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 1616.072324] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 1626.079639] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 1636.086982] MemAlloc-Info: 7 stalling task, 0 dying task, 0 victim task. [ 1656.101667] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1666.109005] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1706.138381] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 1716.145730] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 1726.153060] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1736.160403] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 1746.167741] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1756.175086] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1766.182427] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1776.189773] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1786.197115] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1796.204463] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1806.211968] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1816.219514] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1826.227075] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 1856.249436] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1866.256788] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 1876.264140] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1886.271494] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 1906.286192] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1916.293546] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 1936.308288] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1946.315699] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 1966.330503] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 1986.345304] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 2006.360045] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2016.367414] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 2026.374783] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 2036.382152] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 2046.389518] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2076.411626] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 2086.419002] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 2096.426372] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 2106.433740] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 2116.441108] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 2126.448478] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 2156.486445] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2176.501708] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2196.516972] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 2206.524607] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 2226.539866] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 2236.547503] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2246.555129] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 2276.578029] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 2286.585663] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 2306.600929] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2316.608562] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2326.616191] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2346.631457] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2356.639093] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 2366.646733] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 2376.654360] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 2426.692537] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 2436.700160] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2486.738327] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 2496.745962] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 2516.761238] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 2526.768860] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 2536.776489] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 2546.784126] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 2566.799391] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2576.807024] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 2586.814659] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2626.845195] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 2636.852824] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2706.907138] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2726.922671] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 2736.930441] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 2746.938204] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 2826.999851] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 3067.183816] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 3087.199151] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 3477.497792] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 3567.566694] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 3577.574349] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 3587.582008] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 3597.589662] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 3607.597314] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 3617.604974] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 3637.620285] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 3647.627939] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 3717.681530] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 3797.742794] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 4238.079941] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 4338.156578] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 4468.256201] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 4558.325170] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 4618.371150] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 4788.501423] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 4828.532079] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 4858.555065] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 4898.585719] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 5058.711672] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 5469.025717] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 5559.094621] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 5649.163542] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 5669.178855] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 5679.186511] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 5709.209479] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 5759.247766] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 5939.385591] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 5989.423875] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6009.439191] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6019.446849] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6029.454508] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6079.492787] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 6089.500450] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 6099.508106] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 6109.515761] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 6119.523421] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6129.531076] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6199.584674] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6209.592332] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6229.607647] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6239.615305] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6249.622965] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6269.638288] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6559.860274] MemAlloc-Info: 1 stalling task, 0 dying task, 0 victim task. [ 6739.998076] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 8401.269303] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 8411.276966] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 8421.284631] MemAlloc-Info: 7 stalling task, 0 dying task, 0 victim task. [ 8431.292299] MemAlloc-Info: 8 stalling task, 0 dying task, 0 victim task. [ 8441.299951] MemAlloc-Info: 9 stalling task, 0 dying task, 0 victim task. [ 8451.307616] MemAlloc-Info: 7 stalling task, 0 dying task, 0 victim task. [ 8461.315273] MemAlloc-Info: 7 stalling task, 0 dying task, 0 victim task. [ 8481.330599] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 8491.338257] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 8501.345922] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 8511.353584] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 8521.361249] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 8531.368911] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 8541.376566] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 8551.384226] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 8561.391891] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 8571.399551] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 8581.407215] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 8591.414878] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 8601.422538] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 8611.430199] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. [ 8621.437860] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 8631.445524] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 8641.453189] MemAlloc-Info: 8 stalling task, 0 dying task, 0 victim task. [ 8651.460845] MemAlloc-Info: 8 stalling task, 0 dying task, 0 victim task. [ 8661.468509] MemAlloc-Info: 8 stalling task, 0 dying task, 0 victim task. [ 8671.476177] MemAlloc-Info: 8 stalling task, 0 dying task, 0 victim task. [ 9462.081427] MemAlloc-Info: 14 stalling task, 0 dying task, 0 victim task. [ 9472.089089] MemAlloc-Info: 14 stalling task, 0 dying task, 0 victim task. [ 9482.096751] MemAlloc-Info: 14 stalling task, 0 dying task, 0 victim task. [ 9492.104413] MemAlloc-Info: 14 stalling task, 0 dying task, 0 victim task. [ 9502.112092] MemAlloc-Info: 14 stalling task, 0 dying task, 0 victim task. [ 9512.119764] MemAlloc-Info: 15 stalling task, 0 dying task, 0 victim task. [ 9522.127417] MemAlloc-Info: 15 stalling task, 0 dying task, 0 victim task. [ 9532.135091] MemAlloc-Info: 15 stalling task, 0 dying task, 0 victim task. [ 9542.142743] MemAlloc-Info: 15 stalling task, 0 dying task, 0 victim task. [ 9552.150406] MemAlloc-Info: 14 stalling task, 0 dying task, 0 victim task. [ 9562.158067] MemAlloc-Info: 15 stalling task, 0 dying task, 0 victim task. [ 9572.165732] MemAlloc-Info: 15 stalling task, 0 dying task, 0 victim task. [ 9612.196377] MemAlloc-Info: 2 stalling task, 0 dying task, 0 victim task. [ 9622.204042] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 9632.211698] MemAlloc-Info: 6 stalling task, 0 dying task, 0 victim task. [ 9642.219358] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 9652.227029] MemAlloc-Info: 5 stalling task, 0 dying task, 0 victim task. [ 9662.234685] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. vmstat_update() and submit_flushes() remained pending for about 110 seconds. If xlog_cil_push_work() were spinning inside GFP_NOFS allocation, it should be reported as MemAlloc: traces, but no such lines are recorded. I don't know why xlog_cil_push_work() did not call schedule() for so long. Anyway, applying http://lkml.kernel.org/r/20151111160336.GD1432@dhcp22.suse.cz should solve vmstat_update() part. [ 8491.338279] Showing busy workqueues and worker pools: [ 8491.338281] workqueue events: flags=0x0 [ 8491.338283] pwq 4: cpus=2 node=0 flags=0x0 nice=0 active=2/256 [ 8491.338287] pending: vmstat_update, e1000_watchdog_task [e1000e] [ 8491.338310] workqueue md: flags=0x8 [ 8491.338312] pwq 4: cpus=2 node=0 flags=0x0 nice=0 active=1/256 [ 8491.338315] pending: submit_flushes [md_mod] [ 8491.338333] workqueue xfs-cil/md3: flags=0xc [ 8491.338334] pwq 4: cpus=2 node=0 flags=0x0 nice=0 active=1/256 [ 8491.338336] in-flight: 8895:xlog_cil_push_work [xfs] BAR(576) [ 8491.338368] pool 0: cpus=0 node=0 flags=0x0 nice=0 workers=3 manager: 12328 idle: 9632 8646 [ 8491.338372] pool 1: cpus=0 node=0 flags=0x0 nice=-20 workers=3 manager: 12327 idle: 4592 11916 [ 8491.338377] pool 4: cpus=2 node=0 flags=0x0 nice=0 workers=2 manager: 11509 (...snipped...) [ 8601.422538] MemAlloc-Info: 4 stalling task, 0 dying task, 0 victim task. [ 8601.422542] MemAlloc: kthreadd(2) gfp=0x2000d0 order=2 delay=61314 [ 8601.422544] MemAlloc: ssh(9797) gfp=0xd0 order=0 delay=60227 [ 8601.422546] MemAlloc: cp(10054) gfp=0x2052d0 order=3 delay=57397 [ 8601.422547] MemAlloc: irqbalance(703) gfp=0x280da order=0 delay=54234 [ 8601.422557] Showing busy workqueues and worker pools: [ 8601.422559] workqueue events: flags=0x0 [ 8601.422561] pwq 4: cpus=2 node=0 flags=0x0 nice=0 active=5/256 [ 8601.422566] pending: vmstat_update, e1000_watchdog_task [e1000e], vmpressure_work_fn, kernfs_notify_workfn, key_garbage_collector [ 8601.422597] workqueue md: flags=0x8 [ 8601.422598] pwq 4: cpus=2 node=0 flags=0x0 nice=0 active=1/256 [ 8601.422601] pending: submit_flushes [md_mod] [ 8601.422619] workqueue xfs-cil/md3: flags=0xc [ 8601.422621] pwq 4: cpus=2 node=0 flags=0x0 nice=0 active=1/256 [ 8601.422623] in-flight: 8895:xlog_cil_push_work [xfs] BAR(4592) BAR(576) [ 8601.422653] workqueue xfs-log/md3: flags=0x1c [ 8601.422655] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 [ 8601.422658] in-flight: 4592:xfs_log_worker [xfs] [ 8601.422680] pool 0: cpus=0 node=0 flags=0x0 nice=0 workers=3 manager: 12328 idle: 9632 8646 [ 8601.422684] pool 1: cpus=0 node=0 flags=0x0 nice=-20 workers=3 manager: 12327 idle: 11916 [ 8601.422688] pool 4: cpus=2 node=0 flags=0x0 nice=0 workers=2 manager: 11509 Well, what steps should we try next for isolating the problem? Swap is not used at all. Turning off swap might help. [ 8633.753574] Free swap = 117220800kB [ 8633.753576] Total swap = 117220820kB Turning off perf might also help. [ 5001.394085] perf interrupt took too long (2505 > 2495), lowering kernel.perf_event_max_sample_rate to 50100 From bfoster@redhat.com Thu Nov 12 09:37:30 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D47577F66 for ; Thu, 12 Nov 2015 09:37:30 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id B195D8F8035 for ; Thu, 12 Nov 2015 07:37:30 -0800 (PST) X-ASG-Debug-ID: 1447342649-04bdf03f04142600001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 6S9Sb1jvA87CzrLC (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 07:37:29 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 40C23C0D8028 for ; Thu, 12 Nov 2015 15:37:29 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACFbSZq017070 for ; Thu, 12 Nov 2015 10:37:29 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 5EF21120059; Thu, 12 Nov 2015 10:37:28 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 0/8] xfs: log recovery torn write detection Date: Thu, 12 Nov 2015 10:37:20 -0500 X-ASG-Orig-Subj: [PATCH v2 0/8] xfs: log recovery torn write detection Message-Id: <1447342648-40012-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447342649 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi all, Here's v2 of log recovery torn write detection. This fixes a couple bugs as noted in the replies to the v1 series and replaces the error injection mechanism with an alternate version that actually writes an invalid log record CRC to disk. An xfstests test based on this mechanism is forthcoming. This survives xfstests and runs through a significant number of error injection iterations without any related problems. I have seen one or two assert failures and whatnot that do not appear related to this series and so far are not repeatable. Thoughts, reviews, flames appreciated. Brian v2: - Fixed bug in first bad record detection to return correct block when log wraps. - Update torn record handling to truncate back to tail. - Fixed up warning messages. - Replaced v1 error injection mechanism with log write time CRC error injection. v1: http://oss.sgi.com/pipermail/xfs/2015-November/044841.html - Added bug fix for mkfs log record header inconsistency. - Refactored log recovery code to support a CRC-check-only recovery pass. - CRC verify the last 8 records behind the head to account for concurrent log writes. - Verify the tail of the log as well when the head is torn. - Added (rfc) crc error injection patch for testing purposes. rfc: http://oss.sgi.com/pipermail/xfs/2015-July/042415.html Brian Foster (8): xfs: detect and handle invalid iclog size set by mkfs xfs: refactor log record unpack and data processing xfs: refactor and open code log record crc check xfs: return start block of first bad log record during recovery xfs: support a crc verification only log record pass xfs: refactor log record start detection into a new helper xfs: detect and trim torn writes during log recovery xfs: debug mode log record crc error injection fs/xfs/libxfs/xfs_log_recover.h | 1 + fs/xfs/xfs_log.c | 45 +++- fs/xfs/xfs_log_priv.h | 3 + fs/xfs/xfs_log_recover.c | 569 ++++++++++++++++++++++++++++++++-------- fs/xfs/xfs_sysfs.c | 36 +++ 5 files changed, 541 insertions(+), 113 deletions(-) -- 2.1.0 From bfoster@redhat.com Thu Nov 12 09:37:31 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3E4367F66 for ; Thu, 12 Nov 2015 09:37:31 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id EE55A8F8033 for ; Thu, 12 Nov 2015 07:37:30 -0800 (PST) X-ASG-Debug-ID: 1447342649-04bdf03f02142600001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 577Dsiokw4YUjpgT (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 07:37:29 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 6C429C0B1B4D for ; Thu, 12 Nov 2015 15:37:29 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACFbTiA032673 for ; Thu, 12 Nov 2015 10:37:29 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 957CB1200E2; Thu, 12 Nov 2015 10:37:28 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 4/8] xfs: return start block of first bad log record during recovery Date: Thu, 12 Nov 2015 10:37:24 -0500 X-ASG-Orig-Subj: [PATCH v2 4/8] xfs: return start block of first bad log record during recovery Message-Id: <1447342648-40012-5-git-send-email-bfoster@redhat.com> In-Reply-To: <1447342648-40012-1-git-send-email-bfoster@redhat.com> References: <1447342648-40012-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447342649 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Each log recovery pass walks from the tail block to the head block and processes records appropriately based on the associated log pass type. There are various failure conditions that can occur through this sequence, such as I/O errors, CRC errors, etc. Log torn write detection will perform CRC verification near the head of the log to detect torn writes and trim torn records from the log appropriately. As it is, xlog_do_recovery_pass() only returns an error code in the event of CRC failure, which isn't enough information to trim the head of the log. Update xlog_do_recovery_pass() to optionally return the start block of the associated record when an error occurs. This patch contains no functional changes. Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 9ec4bbd..e0318e8 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4239,10 +4239,12 @@ xlog_do_recovery_pass( struct xlog *log, xfs_daddr_t head_blk, xfs_daddr_t tail_blk, - int pass) + int pass, + xfs_daddr_t *first_bad) /* out: first bad log rec */ { xlog_rec_header_t *rhead; xfs_daddr_t blk_no; + xfs_daddr_t rhead_blk; char *offset; xfs_buf_t *hbp, *dbp; int error = 0, h_size, h_len; @@ -4251,6 +4253,7 @@ xlog_do_recovery_pass( struct hlist_head rhash[XLOG_RHASH_SIZE]; ASSERT(head_blk != tail_blk); + rhead_blk = 0; /* * Read the header of the tail block and get the iclog buffer size from @@ -4325,7 +4328,7 @@ xlog_do_recovery_pass( } memset(rhash, 0, sizeof(rhash)); - blk_no = tail_blk; + blk_no = rhead_blk = tail_blk; if (tail_blk > head_blk) { /* * Perform recovery around the end of the physical log. @@ -4436,11 +4439,14 @@ xlog_do_recovery_pass( pass); if (error) goto bread_err2; + blk_no += bblks; + rhead_blk = blk_no; } ASSERT(blk_no >= log->l_logBBsize); blk_no -= log->l_logBBsize; + rhead_blk = blk_no; } /* read first part of physical log */ @@ -4464,13 +4470,19 @@ xlog_do_recovery_pass( error = xlog_recover_process(log, rhash, rhead, offset, pass); if (error) goto bread_err2; + blk_no += bblks + hblks; + rhead_blk = blk_no; } bread_err2: xlog_put_bp(dbp); bread_err1: xlog_put_bp(hbp); + + if (error && first_bad) + *first_bad = rhead_blk; + return error; } @@ -4508,7 +4520,7 @@ xlog_do_log_recovery( INIT_LIST_HEAD(&log->l_buf_cancel_table[i]); error = xlog_do_recovery_pass(log, head_blk, tail_blk, - XLOG_RECOVER_PASS1); + XLOG_RECOVER_PASS1, NULL); if (error != 0) { kmem_free(log->l_buf_cancel_table); log->l_buf_cancel_table = NULL; @@ -4519,7 +4531,7 @@ xlog_do_log_recovery( * When it is complete free the table of buf cancel items. */ error = xlog_do_recovery_pass(log, head_blk, tail_blk, - XLOG_RECOVER_PASS2); + XLOG_RECOVER_PASS2, NULL); #ifdef DEBUG if (!error) { int i; -- 2.1.0 From bfoster@redhat.com Thu Nov 12 09:37:32 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 770D57F6C for ; Thu, 12 Nov 2015 09:37:32 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6295A304043 for ; Thu, 12 Nov 2015 07:37:32 -0800 (PST) X-ASG-Debug-ID: 1447342650-04cb6c296b13cf40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id MZ2h4Tlt06ST25aP (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 07:37:30 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id ECD473D1EA for ; Thu, 12 Nov 2015 15:37:29 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACFbTlh003343 for ; Thu, 12 Nov 2015 10:37:29 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id C77411201E2; Thu, 12 Nov 2015 10:37:28 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 8/8] xfs: debug mode log record crc error injection Date: Thu, 12 Nov 2015 10:37:28 -0500 X-ASG-Orig-Subj: [PATCH v2 8/8] xfs: debug mode log record crc error injection Message-Id: <1447342648-40012-9-git-send-email-bfoster@redhat.com> In-Reply-To: <1447342648-40012-1-git-send-email-bfoster@redhat.com> References: <1447342648-40012-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447342650 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS now uses CRC verification over a limited section of the log to detect torn writes prior to a crash. This is difficult to test directly due to the timing and hardware requirements to cause a short write. Add a mechanism to inject CRC errors into log records to facilitate testing torn write detection during log recovery. This mechanism is dangerous and can result in filesystem corruption. Thus, it is only available in DEBUG mode for testing/development purposes. Set a non-zero value to the following sysfs entry to enable error injection: /sys/fs/xfs//log/log_badcrc_factor Once enabled, XFS intentionally writes an invalid CRC to a log record at some random point in the future based on the provided frequency. The filesystem immediately shuts down once the record has been written to the physical log to prevent metadata writeback (e.g., AIL insertion) once the log write completes. This helps reasonably simulate a torn write to the log as the affected record must be safe to discard. The next mount after the intentional shutdown requires log recovery and should detect and recover from the torn write. Note again that this _will_ result in data loss or worse. For testing and development purposes only! Signed-off-by: Brian Foster --- fs/xfs/xfs_log.c | 45 ++++++++++++++++++++++++++++++++++++++------- fs/xfs/xfs_log_priv.h | 3 +++ fs/xfs/xfs_sysfs.c | 36 ++++++++++++++++++++++++++++++++++++ 3 files changed, 77 insertions(+), 7 deletions(-) diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index f52c72a..887c443 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -1188,10 +1188,16 @@ xlog_iodone(xfs_buf_t *bp) int aborted = 0; /* - * Race to shutdown the filesystem if we see an error. + * Race to shutdown the filesystem if we see an error or the iclog is in + * IOABORT state. The IOABORT state is only set in DEBUG mode to inject + * CRC errors into log recovery. */ - if (XFS_TEST_ERROR(bp->b_error, l->l_mp, - XFS_ERRTAG_IODONE_IOERR, XFS_RANDOM_IODONE_IOERR)) { + if (XFS_TEST_ERROR(bp->b_error, l->l_mp, XFS_ERRTAG_IODONE_IOERR, + XFS_RANDOM_IODONE_IOERR) || + iclog->ic_state & XLOG_STATE_IOABORT) { + if (iclog->ic_state & XLOG_STATE_IOABORT) + iclog->ic_state &= ~XLOG_STATE_IOABORT; + xfs_buf_ioerror_alert(bp, __func__); xfs_buf_stale(bp); xfs_force_shutdown(l->l_mp, SHUTDOWN_LOG_IO_ERROR); @@ -1838,6 +1844,23 @@ xlog_sync( /* calculcate the checksum */ iclog->ic_header.h_crc = xlog_cksum(log, &iclog->ic_header, iclog->ic_datap, size); +#ifdef DEBUG + /* + * Intentionally corrupt the log record CRC based on the error injection + * frequency, if defined. This facilitates testing log recovery in the + * event of torn writes. Hence, set the IOABORT state to abort the log + * write on I/O completion and shutdown the fs. The subsequent mount + * detects the bad CRC and attempts to recover. + */ + if (log->l_badcrc_factor && + (prandom_u32() % log->l_badcrc_factor == 0)) { + iclog->ic_header.h_crc &= 0xAAAAAAAA; + iclog->ic_state |= XLOG_STATE_IOABORT; + xfs_warn(log->l_mp, + "Intentionally corrupted log record at LSN 0x%llx. Shutdown imminent.", + be64_to_cpu(iclog->ic_header.h_lsn)); + } +#endif bp->b_io_length = BTOBB(count); bp->b_fspriv = iclog; @@ -2791,11 +2814,19 @@ xlog_state_do_callback( } } while (!ioerrors && loopdidcallbacks); +#ifdef DEBUG /* - * make one last gasp attempt to see if iclogs are being left in - * limbo.. + * Make one last gasp attempt to see if iclogs are being left in limbo. + * If the above loop finds an iclog earlier than the current iclog and + * in one of the syncing states, the current iclog is put into + * DO_CALLBACK and the callbacks are deferred to the completion of the + * earlier iclog. Walk the iclogs in order and make sure that no iclog + * is in DO_CALLBACK unless an earlier iclog is in one of the syncing + * states. + * + * Note that SYNCING|IOABORT is a valid state so we cannot just check + * for ic_state == SYNCING. */ -#ifdef DEBUG if (funcdidcallbacks) { first_iclog = iclog = log->l_iclog; do { @@ -2810,7 +2841,7 @@ xlog_state_do_callback( * IOERROR - give up hope all ye who enter here */ if (iclog->ic_state == XLOG_STATE_WANT_SYNC || - iclog->ic_state == XLOG_STATE_SYNCING || + iclog->ic_state & XLOG_STATE_SYNCING || iclog->ic_state == XLOG_STATE_DONE_SYNC || iclog->ic_state == XLOG_STATE_IOERROR ) break; diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h index 8daba74..ed88963 100644 --- a/fs/xfs/xfs_log_priv.h +++ b/fs/xfs/xfs_log_priv.h @@ -62,6 +62,7 @@ static inline uint xlog_get_client_id(__be32 i) #define XLOG_STATE_CALLBACK 0x0020 /* Callback functions now */ #define XLOG_STATE_DIRTY 0x0040 /* Dirty IC log, not ready for ACTIVE status*/ #define XLOG_STATE_IOERROR 0x0080 /* IO error happened in sync'ing log */ +#define XLOG_STATE_IOABORT 0x0100 /* force abort on I/O completion (debug) */ #define XLOG_STATE_ALL 0x7FFF /* All possible valid flags */ #define XLOG_STATE_NOTUSED 0x8000 /* This IC log not being used */ @@ -410,6 +411,8 @@ struct xlog { /* The following field are used for debugging; need to hold icloglock */ #ifdef DEBUG void *l_iclog_bak[XLOG_MAX_ICLOGS]; + /* log record crc error injection factor */ + uint32_t l_badcrc_factor; #endif }; diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c index ee70f5d..641d625 100644 --- a/fs/xfs/xfs_sysfs.c +++ b/fs/xfs/xfs_sysfs.c @@ -255,11 +255,47 @@ write_grant_head_show( } XFS_SYSFS_ATTR_RO(write_grant_head); +#ifdef DEBUG +STATIC ssize_t +log_badcrc_factor_store( + struct kobject *kobject, + const char *buf, + size_t count) +{ + struct xlog *log = to_xlog(kobject); + int ret; + uint32_t val; + + ret = kstrtouint(buf, 0, &val); + if (ret) + return ret; + + log->l_badcrc_factor = val; + + return count; +} + +STATIC ssize_t +log_badcrc_factor_show( + struct kobject *kobject, + char *buf) +{ + struct xlog *log = to_xlog(kobject); + + return snprintf(buf, PAGE_SIZE, "%d\n", log->l_badcrc_factor); +} + +XFS_SYSFS_ATTR_RW(log_badcrc_factor); +#endif /* DEBUG */ + static struct attribute *xfs_log_attrs[] = { ATTR_LIST(log_head_lsn), ATTR_LIST(log_tail_lsn), ATTR_LIST(reserve_grant_head), ATTR_LIST(write_grant_head), +#ifdef DEBUG + ATTR_LIST(log_badcrc_factor), +#endif NULL, }; -- 2.1.0 From bfoster@redhat.com Thu Nov 12 09:37:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C95B97F6D for ; Thu, 12 Nov 2015 09:37:32 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3B1DAAC002 for ; Thu, 12 Nov 2015 07:37:32 -0800 (PST) X-ASG-Debug-ID: 1447342649-04cb6c296d13cf40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id g8gADF2Cji2gpcf2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 07:37:30 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id D24ACC60EE for ; Thu, 12 Nov 2015 15:37:29 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACFbTri032681 for ; Thu, 12 Nov 2015 10:37:29 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id A1FFE120142; Thu, 12 Nov 2015 10:37:28 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 5/8] xfs: support a crc verification only log record pass Date: Thu, 12 Nov 2015 10:37:25 -0500 X-ASG-Orig-Subj: [PATCH v2 5/8] xfs: support a crc verification only log record pass Message-Id: <1447342648-40012-6-git-send-email-bfoster@redhat.com> In-Reply-To: <1447342648-40012-1-git-send-email-bfoster@redhat.com> References: <1447342648-40012-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447342650 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Log recovery torn write detection uses CRC verification over a range of the active log to identify torn writes. Since the generic log recovery pass code implements a superset of the functionality required for CRC verification, it can be easily modified to support a CRC verification only pass. Create a new CRC pass type and update the log record processing helper to skip everything beyond CRC verification when in this mode. This pass will be invoked in subsequent patches to implement torn write detection. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_log_recover.h | 1 + fs/xfs/xfs_log_recover.c | 24 +++++++++++++++++++----- 2 files changed, 20 insertions(+), 5 deletions(-) diff --git a/fs/xfs/libxfs/xfs_log_recover.h b/fs/xfs/libxfs/xfs_log_recover.h index 1c55ccb..8e385f9 100644 --- a/fs/xfs/libxfs/xfs_log_recover.h +++ b/fs/xfs/libxfs/xfs_log_recover.h @@ -60,6 +60,7 @@ typedef struct xlog_recover { */ #define XLOG_BC_TABLE_SIZE 64 +#define XLOG_RECOVER_CRCPASS 0 #define XLOG_RECOVER_PASS1 1 #define XLOG_RECOVER_PASS2 2 diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index e0318e8..1be2590 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4159,13 +4159,27 @@ xlog_recover_process( int error; __le32 crc; + crc = xlog_cksum(log, rhead, dp, be32_to_cpu(rhead->h_len)); + /* - * Check the CRC and issue a warning if and only if the CRC in the - * header is non-zero. This is an advisory warning and the zero CRC - * check prevents warnings from being emitted when upgrading the kernel - * from one that does not add CRCs by default. + * Nothing else to do if this is a CRC verification pass. Just return + * if this a record with a non-zero crc. Unfortunately, mkfs always + * sets h_crc to 0 so we must consider this valid even on v5 supers. + * Otherwise, return EFSBADCRC on failure so the callers up the stack + * know precisely what failed. + */ + if (pass == XLOG_RECOVER_CRCPASS) { + if (rhead->h_crc && crc != le32_to_cpu(rhead->h_crc)) + return -EFSBADCRC; + return 0; + } + + /* + * We're in the normal recovery path. Issue a warning if and only if the + * CRC in the header is non-zero. This is an advisory warning and the + * zero CRC check prevents warnings from being emitted when upgrading + * the kernel from one that does not add CRCs by default. */ - crc = xlog_cksum(log, rhead, dp, be32_to_cpu(rhead->h_len)); if (crc != le32_to_cpu(rhead->h_crc)) { if (rhead->h_crc || xfs_sb_version_hascrc(&log->l_mp->m_sb)) { xfs_alert(log->l_mp, -- 2.1.0 From bfoster@redhat.com Thu Nov 12 09:37:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E374E7F6C for ; Thu, 12 Nov 2015 09:37:32 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 54E8DAC003 for ; Thu, 12 Nov 2015 07:37:32 -0800 (PST) X-ASG-Debug-ID: 1447342649-04cb6c296a13cf30001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 6Mdkc69rTAcyPLxp (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 07:37:29 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 6E19AC1A1657 for ; Thu, 12 Nov 2015 15:37:29 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACFbTWE017072 for ; Thu, 12 Nov 2015 10:37:29 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 890401201AB; Thu, 12 Nov 2015 10:37:28 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 3/8] xfs: refactor and open code log record crc check Date: Thu, 12 Nov 2015 10:37:23 -0500 X-ASG-Orig-Subj: [PATCH v2 3/8] xfs: refactor and open code log record crc check Message-Id: <1447342648-40012-4-git-send-email-bfoster@redhat.com> In-Reply-To: <1447342648-40012-1-git-send-email-bfoster@redhat.com> References: <1447342648-40012-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447342649 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Log record CRC verification currently occurs during active log recovery, immediately before a log record is unpacked. Therefore, the CRC calculation code is buried within the data unpack function. CRC verification pass support only needs to go so far as check the CRC, but this is not easily allowed as the code is currently organized. Since we now have a new log record processing helper, pull the record CRC verification code out from the unpack helper and open-code it at the top of the new process helper. This facilitates the ability to modify how records are processed based on the type of the current pass. This patch contains no functional changes. Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 72 +++++++++++++++++------------------------------- 1 file changed, 26 insertions(+), 46 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 236ebaf..9ec4bbd 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4118,46 +4118,6 @@ xlog_recover_process_iunlinks( mp->m_dmevmask = mp_dmevmask; } -/* - * Upack the log buffer data and crc check it. If the check fails, issue a - * warning if and only if the CRC in the header is non-zero. This makes the - * check an advisory warning, and the zero CRC check will prevent failure - * warnings from being emitted when upgrading the kernel from one that does not - * add CRCs by default. - * - * When filesystems are CRC enabled, this CRC mismatch becomes a fatal log - * corruption failure - */ -STATIC int -xlog_unpack_data_crc( - struct xlog_rec_header *rhead, - char *dp, - struct xlog *log) -{ - __le32 crc; - - crc = xlog_cksum(log, rhead, dp, be32_to_cpu(rhead->h_len)); - if (crc != rhead->h_crc) { - if (rhead->h_crc || xfs_sb_version_hascrc(&log->l_mp->m_sb)) { - xfs_alert(log->l_mp, - "log record CRC mismatch: found 0x%x, expected 0x%x.", - le32_to_cpu(rhead->h_crc), - le32_to_cpu(crc)); - xfs_hex_dump(dp, 32); - } - - /* - * If we've detected a log record corruption, then we can't - * recover past this point. Abort recovery if we are enforcing - * CRC protection by punting an error back up the stack. - */ - if (xfs_sb_version_hascrc(&log->l_mp->m_sb)) - return -EFSCORRUPTED; - } - - return 0; -} - STATIC int xlog_unpack_data( struct xlog_rec_header *rhead, @@ -4165,11 +4125,6 @@ xlog_unpack_data( struct xlog *log) { int i, j, k; - int error; - - error = xlog_unpack_data_crc(rhead, dp, log); - if (error) - return error; for (i = 0; i < BTOBB(be32_to_cpu(rhead->h_len)) && i < (XLOG_HEADER_CYCLE_SIZE / BBSIZE); i++) { @@ -4191,7 +4146,7 @@ xlog_unpack_data( } /* - * Unpack and process a log record. + * CRC check, unpack and process a log record. */ STATIC int xlog_recover_process( @@ -4202,6 +4157,31 @@ xlog_recover_process( int pass) { int error; + __le32 crc; + + /* + * Check the CRC and issue a warning if and only if the CRC in the + * header is non-zero. This is an advisory warning and the zero CRC + * check prevents warnings from being emitted when upgrading the kernel + * from one that does not add CRCs by default. + */ + crc = xlog_cksum(log, rhead, dp, be32_to_cpu(rhead->h_len)); + if (crc != le32_to_cpu(rhead->h_crc)) { + if (rhead->h_crc || xfs_sb_version_hascrc(&log->l_mp->m_sb)) { + xfs_alert(log->l_mp, + "log record CRC mismatch: found 0x%x, expected 0x%x.", + le32_to_cpu(rhead->h_crc), + le32_to_cpu(crc)); + xfs_hex_dump(dp, 32); + } + + /* + * If the filesystem is CRC enabled, this mismatch becomes a + * fatal log corruption failure. + */ + if (xfs_sb_version_hascrc(&log->l_mp->m_sb)) + return -EFSCORRUPTED; + } error = xlog_unpack_data(rhead, dp, log); if (error) -- 2.1.0 From bfoster@redhat.com Thu Nov 12 09:37:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 916B27F74 for ; Thu, 12 Nov 2015 09:37:33 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id E3890AC006 for ; Thu, 12 Nov 2015 07:37:32 -0800 (PST) X-ASG-Debug-ID: 1447342650-04cb6c296a13cf40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id v8WWUH6V1BzpQqo1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 07:37:31 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id EF149935D2 for ; Thu, 12 Nov 2015 15:37:29 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACFbTTF003341 for ; Thu, 12 Nov 2015 10:37:29 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id AE7221201BB; Thu, 12 Nov 2015 10:37:28 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 6/8] xfs: refactor log record start detection into a new helper Date: Thu, 12 Nov 2015 10:37:26 -0500 X-ASG-Orig-Subj: [PATCH v2 6/8] xfs: refactor log record start detection into a new helper Message-Id: <1447342648-40012-7-git-send-email-bfoster@redhat.com> In-Reply-To: <1447342648-40012-1-git-send-email-bfoster@redhat.com> References: <1447342648-40012-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447342651 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 As part of the head/tail discovery process, log recovery locates the head block and then reverse seeks to find the start of the last active record in the log. This is non-trivial as the record itself could have wrapped around the end of the physical log. Log recovery torn write detection potentially needs to walk further behind the last record in the log, as multiple log I/Os can be in-flight at one time during a crash event. Therefore, refactor the reverse log record header search mechanism into a new helper that supports the ability to seek past an arbitrary number of log records (or until the tail is hit). Update the head/tail search mechanism to call the new helper, but otherwise there is no change in log recovery behavior. Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 118 +++++++++++++++++++++++++++++++++-------------- 1 file changed, 83 insertions(+), 35 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 1be2590..423c36d 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -868,6 +868,79 @@ validate_head: } /* + * Seek backwards in the log for log record headers. + * + * Given a starting log block, walk backwards until we find the provided number + * of records or hit the provided tail block. The return value is the number of + * records encountered or a negative error code. The log block and buffer + * pointer of the last record seen are returned in rblk and rhead respectively. + */ +STATIC int +xlog_rseek_logrec_hdr( + struct xlog *log, + xfs_daddr_t head_blk, + xfs_daddr_t tail_blk, + int count, + struct xfs_buf *bp, + xfs_daddr_t *rblk, + struct xlog_rec_header **rhead, + bool *wrapped) +{ + int i; + int error; + int found = 0; + char *offset = NULL; + xfs_daddr_t end_blk; + + *wrapped = false; + + /* + * Walk backwards from the head block until we hit the tail or the first + * block in the log. + */ + end_blk = head_blk > tail_blk ? tail_blk : 0; + for (i = (int) head_blk - 1; i >= end_blk; i--) { + error = xlog_bread(log, i, 1, bp, &offset); + if (error) + goto out_error; + + if (*(__be32 *) offset == cpu_to_be32(XLOG_HEADER_MAGIC_NUM)) { + *rblk = i; + *rhead = (struct xlog_rec_header *) offset; + if (++found == count) + break; + } + } + + /* + * If we haven't hit the tail block or the log record header count, + * start looking again from the end of the physical log. Note that + * callers can pass head == tail if the tail is not yet known. + */ + if (tail_blk >= head_blk && found != count) { + for (i = log->l_logBBsize - 1; i >= (int) tail_blk; i--) { + error = xlog_bread(log, i, 1, bp, &offset); + if (error) + goto out_error; + + if (*(__be32 *)offset == + cpu_to_be32(XLOG_HEADER_MAGIC_NUM)) { + *wrapped = true; + *rblk = i; + *rhead = (struct xlog_rec_header *) offset; + if (++found == count) + break; + } + } + } + + return found; + +out_error: + return error; +} + +/* * Find the sync block number or the tail of the log. * * This will be the block number of the last record to have its @@ -898,8 +971,7 @@ xlog_find_tail( xfs_daddr_t after_umount_blk; xfs_lsn_t tail_lsn; int hblks; - - found = 0; + bool wrapped = false; /* * Find previous log record @@ -923,37 +995,16 @@ xlog_find_tail( } /* - * Search backwards looking for log record header block + * Search backwards through the log looking for the log record header + * block. This wraps all the way back around to the head so something is + * seriously wrong if we can't find it. */ ASSERT(*head_blk < INT_MAX); - for (i = (int)(*head_blk) - 1; i >= 0; i--) { - error = xlog_bread(log, i, 1, bp, &offset); - if (error) - goto done; - - if (*(__be32 *)offset == cpu_to_be32(XLOG_HEADER_MAGIC_NUM)) { - found = 1; - break; - } - } - /* - * If we haven't found the log record header block, start looking - * again from the end of the physical log. XXXmiken: There should be - * a check here to make sure we didn't search more than N blocks in - * the previous code. - */ - if (!found) { - for (i = log->l_logBBsize - 1; i >= (int)(*head_blk); i--) { - error = xlog_bread(log, i, 1, bp, &offset); - if (error) - goto done; - - if (*(__be32 *)offset == - cpu_to_be32(XLOG_HEADER_MAGIC_NUM)) { - found = 2; - break; - } - } + found = xlog_rseek_logrec_hdr(log, *head_blk, *head_blk, 1, bp, &i, + &rhead, &wrapped); + if (found < 0) { + error = found; + goto done; } if (!found) { xfs_warn(log->l_mp, "%s: couldn't find sync record", __func__); @@ -961,9 +1012,6 @@ xlog_find_tail( ASSERT(0); return -EIO; } - - /* find blk_no of tail of log */ - rhead = (xlog_rec_header_t *)offset; *tail_blk = BLOCK_LSN(be64_to_cpu(rhead->h_tail_lsn)); /* @@ -979,7 +1027,7 @@ xlog_find_tail( log->l_prev_block = i; log->l_curr_block = (int)*head_blk; log->l_curr_cycle = be32_to_cpu(rhead->h_cycle); - if (found == 2) + if (wrapped) log->l_curr_cycle++; atomic64_set(&log->l_tail_lsn, be64_to_cpu(rhead->h_tail_lsn)); atomic64_set(&log->l_last_sync_lsn, be64_to_cpu(rhead->h_lsn)); -- 2.1.0 From bfoster@redhat.com Thu Nov 12 09:37:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 681457F6D for ; Thu, 12 Nov 2015 09:37:33 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id D2FEEAC005 for ; Thu, 12 Nov 2015 07:37:32 -0800 (PST) X-ASG-Debug-ID: 1447342650-04cb6c296c13cf40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ijQbGgxqOCGDVQ1S (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 07:37:30 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id E403FB4C4D for ; Thu, 12 Nov 2015 15:37:29 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACFbTm3014213 for ; Thu, 12 Nov 2015 10:37:29 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id BB0C71201BD; Thu, 12 Nov 2015 10:37:28 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 7/8] xfs: detect and trim torn writes during log recovery Date: Thu, 12 Nov 2015 10:37:27 -0500 X-ASG-Orig-Subj: [PATCH v2 7/8] xfs: detect and trim torn writes during log recovery Message-Id: <1447342648-40012-8-git-send-email-bfoster@redhat.com> In-Reply-To: <1447342648-40012-1-git-send-email-bfoster@redhat.com> References: <1447342648-40012-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447342650 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Certain types of storage, such as persistent memory, do not provide sector atomicity for writes. This means that if a crash occurs while XFS is writing log records, only part of those records might make it to the storage. This is problematic because log recovery uses the cycle value packed at the top of each log block to locate the head/tail of the log. This can lead to CRC verification failures during log recovery and an unmountable fs for a filesystem that is otherwise consistent. Update log recovery to incorporate log record CRC verification as part of the head/tail discovery process. Once the head is located via the traditional algorithm, run a CRC-only pass over the records up to the head of the log. If CRC verification fails, assume that the records are torn as a matter of policy and trim the head block back to the start of the first bad record. Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 306 ++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 287 insertions(+), 19 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 423c36d..5bf8076 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -61,6 +61,9 @@ xlog_recover_check_summary( #else #define xlog_recover_check_summary(log) #endif +STATIC int +xlog_do_recovery_pass( + struct xlog *, xfs_daddr_t, xfs_daddr_t, int, xfs_daddr_t *); /* * This structure is used during recovery to record the buf log items which @@ -941,6 +944,278 @@ out_error: } /* + * Seek forward in the log for log record headers. + * + * Given head and tail blocks, walk forward from the tail block until we find + * the provided number of records or hit the head block. The return value is the + * number of records encountered or a negative error code. The log block and + * buffer pointer of the last record seen are returned in rblk and rhead + * respectively. + */ +STATIC int +xlog_seek_logrec_hdr( + struct xlog *log, + xfs_daddr_t head_blk, + xfs_daddr_t tail_blk, + int count, + struct xfs_buf *bp, + xfs_daddr_t *rblk, + struct xlog_rec_header **rhead, + bool *wrapped) +{ + int i; + int error; + int found = 0; + char *offset = NULL; + xfs_daddr_t end_blk; + + *wrapped = false; + + /* + * Walk forward from the tail block until we hit the head or the last + * block in the log. + */ + end_blk = head_blk > tail_blk ? head_blk : log->l_logBBsize - 1; + for (i = (int) tail_blk; i <= end_blk; i++) { + error = xlog_bread(log, i, 1, bp, &offset); + if (error) + goto out_error; + + if (*(__be32 *) offset == cpu_to_be32(XLOG_HEADER_MAGIC_NUM)) { + *rblk = i; + *rhead = (struct xlog_rec_header *) offset; + if (++found == count) + break; + } + } + + /* + * If we haven't hit the head block or the log record header count, + * start looking again from the start of the physical log. + */ + if (tail_blk > head_blk && found != count) { + for (i = 0; i < (int) head_blk; i++) { + error = xlog_bread(log, i, 1, bp, &offset); + if (error) + goto out_error; + + if (*(__be32 *)offset == + cpu_to_be32(XLOG_HEADER_MAGIC_NUM)) { + *wrapped = true; + *rblk = i; + *rhead = (struct xlog_rec_header *) offset; + if (++found == count) + break; + } + } + } + + return found; + +out_error: + return error; +} + +/* + * Check the log tail for torn writes. This is required when torn writes are + * detected at the head and the head had to be walked back to a previous record. + * The tail of the previous record must now be verified to ensure the torn + * writes didn't corrupt the previous tail. + * + * Return an error if CRC verification fails as recovery cannot proceed. + */ +STATIC int +xlog_verify_tail( + struct xlog *log, + xfs_daddr_t head_blk, + xfs_daddr_t tail_blk) +{ + struct xlog_rec_header *thead; + struct xfs_buf *bp; + xfs_daddr_t first_bad; + int count; + int error = 0; + bool wrapped; + xfs_daddr_t tmp_head; + + bp = xlog_get_bp(log, 1); + if (!bp) + return -ENOMEM; + + /* + * Seek XLOG_MAX_ICLOGS + 1 records past the current tail record to get + * a temporary head block that points after the last possible + * concurrently written record of the tail. + */ + count = xlog_seek_logrec_hdr(log, head_blk, tail_blk, + XLOG_MAX_ICLOGS + 1, bp, &tmp_head, &thead, + &wrapped); + if (count < 0) { + error = count; + goto out; + } + + /* + * If the call above didn't find XLOG_MAX_ICLOGS + 1 records, we ran + * into the actual log head. tmp_head points to the start of the record + * so update it to the actual head block. + */ + if (count < XLOG_MAX_ICLOGS + 1) + tmp_head = head_blk; + + /* + * We now have a tail and temporary head block that covers at least + * XLOG_MAX_ICLOGS records from the tail. We need to verify that these + * records were completely written. Run a CRC verification pass from + * tail to head and return the result. + */ + error = xlog_do_recovery_pass(log, tmp_head, tail_blk, + XLOG_RECOVER_CRCPASS, &first_bad); + +out: + xlog_put_bp(bp); + return error; +} + +/* + * Detect and trim torn writes from the head of the log. + * + * Storage without sector atomicity guarantees can result in torn writes in the + * log in the event of a crash. Our only means to detect this scenario is via + * CRC verification. While we can't always be certain that CRC verification + * failure is due to a torn write vs. an unrelated corruption, we do know that + * only a certain number (XLOG_MAX_ICLOGS) of log records can be written out at + * one time. Therefore, CRC verify up to XLOG_MAX_ICLOGS records at the head of + * the log and treat failures in this range as torn writes as a matter of + * policy. In the event of CRC failure, the head is walked back to the last good + * record in the log and the tail is updated from that record and verified. + */ +STATIC int +xlog_verify_head( + struct xlog *log, + xfs_daddr_t *head_blk, /* in/out: unverified head */ + xfs_daddr_t *tail_blk, /* out: tail block */ + struct xfs_buf *bp, + xfs_daddr_t *rhead_blk, /* start blk of last record */ + struct xlog_rec_header **rhead, /* ptr to last record */ + bool *wrapped) /* last rec. wraps phys. log */ +{ + struct xlog_rec_header *tmp_rhead; + struct xfs_buf *tmp_bp; + xfs_daddr_t first_bad; + xfs_daddr_t tmp_rhead_blk; + int found; + int error; + bool tmp_wrapped; + + /* + * Search backwards through the log looking for the log record header + * block. This wraps all the way back around to the head so something is + * seriously wrong if we can't find it. + */ + found = xlog_rseek_logrec_hdr(log, *head_blk, *head_blk, 1, bp, rhead_blk, + rhead, wrapped); + if (found < 0) + return found; + if (!found) { + xfs_warn(log->l_mp, "%s: couldn't find sync record", __func__); + return -EIO; + } + + *tail_blk = BLOCK_LSN(be64_to_cpu((*rhead)->h_tail_lsn)); + + /* + * Now that we have a tail block, check the head of the log for torn + * writes. Search again until we hit the tail or the maximum number of + * log record I/Os that could have been in flight at one time. Use a + * temporary buffer so we don't trash the rhead/bp pointer from the + * call above. + */ + tmp_bp = xlog_get_bp(log, 1); + if (!tmp_bp) + return -ENOMEM; + error = xlog_rseek_logrec_hdr(log, *head_blk, *tail_blk, + XLOG_MAX_ICLOGS, tmp_bp, &tmp_rhead_blk, + &tmp_rhead, &tmp_wrapped); + xlog_put_bp(tmp_bp); + if (error < 0) + return error; + + /* + * Now run a CRC verification pass over the records starting at the + * block found above to the current head. If a CRC failure occurs, the + * log block of the first bad record is saved in first_bad. + */ + error = xlog_do_recovery_pass(log, *head_blk, tmp_rhead_blk, + XLOG_RECOVER_CRCPASS, &first_bad); + if (error == -EFSBADCRC) { + /* + * We've hit a potential torn write. Reset the error and warn + * about it. + */ + error = 0; + xfs_warn(log->l_mp, +"Torn write (CRC failure) detected at log block 0x%llx. Truncating head block from 0x%llx.", + first_bad, *head_blk); + + /* + * Get the header block and buffer pointer for the last good + * record before the bad record. + * + * Note that xlog_find_tail() clears the blocks at the new head + * (i.e., the records with invalid CRC) if the cycle number + * matches the the current cycle. + */ + found = xlog_rseek_logrec_hdr(log, first_bad, *tail_blk, 1, bp, + rhead_blk, rhead, wrapped); + if (found < 0) + return found; + if (found == 0) /* XXX: right thing to do here? */ + return -EIO; + + /* + * Reset the head block to the starting block of the first bad + * log record and set the tail block based on the last good + * record. + * + * Bail out if the updated head/tail match as this indicates + * possible corruption outside of the acceptable + * (XLOG_MAX_ICLOGS) range. This is a job for xfs_repair... + */ + *head_blk = first_bad; + *tail_blk = BLOCK_LSN(be64_to_cpu((*rhead)->h_tail_lsn)); + if (*head_blk == *tail_blk) { + ASSERT(0); + return 0; + } + + /* + * Now verify the tail based on the updated head. This is + * required because the torn writes trimmed from the head could + * have been written over the tail of a previous record. Return + * any errors since recovery cannot proceed if the tail is + * corrupt. + * + * XXX: This leaves a gap in truly robust protection from torn + * writes in the log. If the head is behind the tail, the tail + * pushes forward to create some space and then a crash occurs + * causing the writes into the previous record's tail region to + * tear, log recovery isn't able to recover. + * + * How likely is this to occur? If possible, can we do something + * more intelligent here? Is it safe to push the tail forward if + * we can determine that the tail is within the range of the + * torn write (e.g., the kernel can only overwrite the tail if + * it has actually been pushed forward)? Alternatively, could we + * somehow prevent this condition at runtime? + */ + error = xlog_verify_tail(log, *head_blk, *tail_blk); + } + + return error; +} + +/* * Find the sync block number or the tail of the log. * * This will be the block number of the last record to have its @@ -966,9 +1241,10 @@ xlog_find_tail( xlog_op_header_t *op_head; char *offset = NULL; xfs_buf_t *bp; - int error, i, found; + int error; xfs_daddr_t umount_data_blk; xfs_daddr_t after_umount_blk; + xfs_daddr_t rhead_blk; xfs_lsn_t tail_lsn; int hblks; bool wrapped = false; @@ -995,24 +1271,16 @@ xlog_find_tail( } /* - * Search backwards through the log looking for the log record header - * block. This wraps all the way back around to the head so something is - * seriously wrong if we can't find it. + * Trim the head block back to skip over torn records. We can have + * multiple log I/Os in flight at any time, so we assume CRC failures + * back through the previous several records are torn writes and skip + * them. */ ASSERT(*head_blk < INT_MAX); - found = xlog_rseek_logrec_hdr(log, *head_blk, *head_blk, 1, bp, &i, - &rhead, &wrapped); - if (found < 0) { - error = found; + error = xlog_verify_head(log, head_blk, tail_blk, bp, &rhead_blk, + &rhead, &wrapped); + if (error) goto done; - } - if (!found) { - xfs_warn(log->l_mp, "%s: couldn't find sync record", __func__); - xlog_put_bp(bp); - ASSERT(0); - return -EIO; - } - *tail_blk = BLOCK_LSN(be64_to_cpu(rhead->h_tail_lsn)); /* * Reset log values according to the state of the log when we @@ -1024,7 +1292,7 @@ xlog_find_tail( * written was complete and ended exactly on the end boundary * of the physical log. */ - log->l_prev_block = i; + log->l_prev_block = rhead_blk; log->l_curr_block = (int)*head_blk; log->l_curr_cycle = be32_to_cpu(rhead->h_cycle); if (wrapped) @@ -1062,12 +1330,12 @@ xlog_find_tail( } else { hblks = 1; } - after_umount_blk = (i + hblks + (int) + after_umount_blk = (rhead_blk + hblks + (int) BTOBB(be32_to_cpu(rhead->h_len))) % log->l_logBBsize; tail_lsn = atomic64_read(&log->l_tail_lsn); if (*head_blk == after_umount_blk && be32_to_cpu(rhead->h_num_logops) == 1) { - umount_data_blk = (i + hblks) % log->l_logBBsize; + umount_data_blk = (rhead_blk + hblks) % log->l_logBBsize; error = xlog_bread(log, umount_data_blk, 1, bp, &offset); if (error) goto done; -- 2.1.0 From bfoster@redhat.com Thu Nov 12 09:37:34 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id ECCD17F6C for ; Thu, 12 Nov 2015 09:37:33 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id A341CAC001 for ; Thu, 12 Nov 2015 07:37:30 -0800 (PST) X-ASG-Debug-ID: 1447342649-04bdf03f03142600001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Dcw20R1TNP5aQgG5 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 07:37:29 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 451B14AD67 for ; Thu, 12 Nov 2015 15:37:29 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACFbS55032666 for ; Thu, 12 Nov 2015 10:37:29 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 6FB0F120042; Thu, 12 Nov 2015 10:37:28 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 1/8] xfs: detect and handle invalid iclog size set by mkfs Date: Thu, 12 Nov 2015 10:37:21 -0500 X-ASG-Orig-Subj: [PATCH v2 1/8] xfs: detect and handle invalid iclog size set by mkfs Message-Id: <1447342648-40012-2-git-send-email-bfoster@redhat.com> In-Reply-To: <1447342648-40012-1-git-send-email-bfoster@redhat.com> References: <1447342648-40012-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447342649 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS log records have separate fields for the record size and the iclog size used to write the record. mkfs.xfs zeroes the log and writes an unmount record to generate a clean log for the subsequent mount. The userspace record logging code has a bug where the iclog size (h_size) field of the log record is hardcoded to 32k, even if a log stripe unit is specified. The log record length is correctly extended to the stripe unit. Since the kernel log recovery code uses the h_size field to determine the log buffer size, this means that the kernel can attempt to read/process records larger than the buffer size and overrun the buffer. This has historically not been a problem because the kernel doesn't actually run through log recovery in the clean unmount case. Instead, the kernel detects that a single unmount record exists between the head and tail and pushes the tail forward such that the log is viewed as clean (head == tail). Once CRC verification is enabled, however, all records at the head of the log are verified for CRC errors and thus we are susceptible to overrun problems if the iclog field is not correct. While the core problem must be fixed in userspace, this is historical behavior that must be detected in the kernel to avoid severe side effects such as memory corruption and crashes. Update the log buffer size calculation code to detect this condition, warn the user and resize the log buffer based on the log stripe unit. Return a corruption error in cases where this does not look like a clean filesystem (i.e., the log record header indicates more than one operation). Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index c5ecaac..4f880d6 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4245,7 +4245,7 @@ xlog_do_recovery_pass( xfs_daddr_t blk_no; char *offset; xfs_buf_t *hbp, *dbp; - int error = 0, h_size; + int error = 0, h_size, h_len; int bblks, split_bblks; int hblks, split_hblks, wrapped_hblks; struct hlist_head rhash[XLOG_RHASH_SIZE]; @@ -4274,7 +4274,31 @@ xlog_do_recovery_pass( error = xlog_valid_rec_header(log, rhead, tail_blk); if (error) goto bread_err1; + + /* + * xfsprogs has a bug where record length is based on lsunit but + * h_size (iclog size) is hardcoded to 32k. Now that we + * unconditionally CRC verify the unmount record, this means the + * log buffer can be too small for the record and cause an + * overrun. + * + * Detect this condition here. Use lsunit for the buffer size as + * long as this looks like the mkfs case. Otherwise, return an + * error to avoid a buffer overrun. + */ h_size = be32_to_cpu(rhead->h_size); + h_len = be32_to_cpu(rhead->h_len); + if (h_len > h_size) { + if (h_len <= log->l_mp->m_logbsize && + be32_to_cpu(rhead->h_num_logops) == 1) { + xfs_warn(log->l_mp, + "invalid iclog size (%d bytes), using lsunit (%d bytes)", + h_size, log->l_mp->m_logbsize); + h_size = log->l_mp->m_logbsize; + } else + return -EFSCORRUPTED; + } + if ((be32_to_cpu(rhead->h_version) & XLOG_VERSION_2) && (h_size > XLOG_HEADER_CYCLE_SIZE)) { hblks = h_size / XLOG_HEADER_CYCLE_SIZE; -- 2.1.0 From bfoster@redhat.com Thu Nov 12 09:37:34 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C27767F77 for ; Thu, 12 Nov 2015 09:37:34 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id B0682304039 for ; Thu, 12 Nov 2015 07:37:31 -0800 (PST) X-ASG-Debug-ID: 1447342649-04cb6c296b13cf30001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id D3pCuT5eHBL03U8B (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 07:37:29 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 5211D8F4E0 for ; Thu, 12 Nov 2015 15:37:29 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACFbTln032668 for ; Thu, 12 Nov 2015 10:37:29 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 7C26912014A; Thu, 12 Nov 2015 10:37:28 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH v2 2/8] xfs: refactor log record unpack and data processing Date: Thu, 12 Nov 2015 10:37:22 -0500 X-ASG-Orig-Subj: [PATCH v2 2/8] xfs: refactor log record unpack and data processing Message-Id: <1447342648-40012-3-git-send-email-bfoster@redhat.com> In-Reply-To: <1447342648-40012-1-git-send-email-bfoster@redhat.com> References: <1447342648-40012-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447342649 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xlog_do_recovery_pass() duplicates a couple function calls related to processing log records because the function must handle wrapping around the end of the log if the head is behind the tail. This is implemented as separate loops. CRC verification pass support will modify how records are processed in both of these loops. Rather than continue to duplicate code, factor the calls that process a log record into a new helper and call that helper from both loops. This patch contains no functional changes. Signed-off-by: Brian Foster --- fs/xfs/xfs_log_recover.c | 35 +++++++++++++++++++++++------------ 1 file changed, 23 insertions(+), 12 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 4f880d6..236ebaf 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4190,6 +4190,26 @@ xlog_unpack_data( return 0; } +/* + * Unpack and process a log record. + */ +STATIC int +xlog_recover_process( + struct xlog *log, + struct hlist_head rhash[], + struct xlog_rec_header *rhead, + char *dp, + int pass) +{ + int error; + + error = xlog_unpack_data(rhead, dp, log); + if (error) + return error; + + return xlog_recover_process_data(log, rhash, rhead, dp, pass); +} + STATIC int xlog_valid_rec_header( struct xlog *log, @@ -4432,12 +4452,8 @@ xlog_do_recovery_pass( goto bread_err2; } - error = xlog_unpack_data(rhead, offset, log); - if (error) - goto bread_err2; - - error = xlog_recover_process_data(log, rhash, - rhead, offset, pass); + error = xlog_recover_process(log, rhash, rhead, offset, + pass); if (error) goto bread_err2; blk_no += bblks; @@ -4465,12 +4481,7 @@ xlog_do_recovery_pass( if (error) goto bread_err2; - error = xlog_unpack_data(rhead, offset, log); - if (error) - goto bread_err2; - - error = xlog_recover_process_data(log, rhash, - rhead, offset, pass); + error = xlog_recover_process(log, rhash, rhead, offset, pass); if (error) goto bread_err2; blk_no += bblks + hblks; -- 2.1.0 From sandeen@sandeen.net Thu Nov 12 09:50:29 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 95FBF7F67 for ; Thu, 12 Nov 2015 09:50:29 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 821568F8049 for ; Thu, 12 Nov 2015 07:50:29 -0800 (PST) X-ASG-Debug-ID: 1447343426-04cb6c296a13d520001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id h6OxIOxyr0y5coL3 for ; Thu, 12 Nov 2015 07:50:26 -0800 (PST) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 2D8A965FC660 for ; Thu, 12 Nov 2015 09:50:26 -0600 (CST) Subject: Re: [PATCH] xfs_fsr: more selinux fixes To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH] xfs_fsr: more selinux fixes References: <5643B8B7.9030708@sandeen.net> <20151112131242.GB5068@bfoster.bfoster> From: Eric Sandeen Message-ID: <5644B541.8070207@sandeen.net> Date: Thu, 12 Nov 2015 09:50:25 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151112131242.GB5068@bfoster.bfoster> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1447343426 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24333 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 11/12/15 7:12 AM, Brian Foster wrote: > On Wed, Nov 11, 2015 at 03:52:55PM -0600, Eric Sandeen wrote: >> Commit: >> >> 1adfe5c xfs_fsr: fix SWAPEXT failures under selinux >> >> attempted to fix up the fork offset under selinux, where >> the temp file is created with a local attribute, but the >> target file has remote attributes; this can lead to a smaller >> data area in the temp inode, without enough room to swap extents >> from the target inode. I remedied this by pushing the temp >> file attribute to remote, but *only* if the target file's attr >> was also remote. >> >> However, I have a case from the field where the parent dir >> and the target file both have a context of: >> >> system_u:object_r:samba_share_t:s0 >> >> but new files created in the dir have a context of >> >> unconfined_u:object_r:samba_share_t:s0 >> >> This means the temp file has a smaller forkoff, and less space >> in the inode for data, so we fail to swap the extents between >> the two, because they don't fit. >> >> The following patch fixes this by allowing xfs_fsr to >> kick the tempfile's attr out of local format even if the target >> file's attr is local, if this will move the forkoff in the right >> direction. This does pass all our fsr xfstests, though I'm not >> sure we have any real coverage of fsr under selinux... >> >> The only functional change is the test at the very end of the >> patch; the rest is comments, ascii art, and removing the >> now-extraneous XFS_IOC_FSGETXATTRA ioctl. >> >> Signed-off-by: Eric Sandeen >> --- >> >> diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c >> index c8ef18f..68b9819 100644 >> --- a/fsr/xfs_fsr.c >> +++ b/fsr/xfs_fsr.c > ... >> /* >> - * If target attr area is less than the temp's (diff < 0) >> - * and the target is not local, write a big attr to >> - * the temp file to knock the attr out of local format, >> - * to match the target. (This should actually *increase* >> - * the temp file's forkoffset when the attr moves out >> - * of the inode) >> + * If target attr area is less than the temp's >> + * (diff < 0), write a big attr to the temp file to knock >> + * the attr out of local format. >> + * (This should actually *increase* the temp file's >> + * forkoffset when the attr moves out of the inode) >> */ >> - if (diff < 0 && fsx.fsx_nextents > 0) { >> + if (diff < 0) { > > Space before tab issue on the line above. Looks fine otherwise, but I > wonder if it would also be a good idea to add an informative fsrprintf() > here if we proceed when (fsx.fsx_nextents > 0)? I can add a debug message, sure - I'm not sure when it would be useful, but we have plenty of other fiddly messages in there about what action is taken. Thanks, -Eric From bfoster@redhat.com Thu Nov 12 09:51:59 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6EA887F67 for ; Thu, 12 Nov 2015 09:51:59 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5C7D68F8033 for ; Thu, 12 Nov 2015 07:51:59 -0800 (PST) X-ASG-Debug-ID: 1447343517-04cb6c296d13d5b0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id tj5sNmVWR3zWGVHb (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 07:51:58 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 61DBF42E5B9; Thu, 12 Nov 2015 15:51:57 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACFpuIF014109; Thu, 12 Nov 2015 10:51:57 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 723C2120059; Thu, 12 Nov 2015 10:51:56 -0500 (EST) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [RFC PATCH] xfs: test XFS torn log write detection Date: Thu, 12 Nov 2015 10:51:56 -0500 X-ASG-Orig-Subj: [RFC PATCH] xfs: test XFS torn log write detection Message-Id: <1447343516-41363-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447343518 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS torn log write detection includes a mechanism to inject CRC errors into log records at runtime and shutdown the fs accordingly. This ensures that the CRC verification pass on the subsequent mount discovers an invalid record near the head of the log and considers it a torn write. This test runs a workload with error injection enabled and verifies that the subsequent mount is successful. The test repeats for several iterations using a random frequency factor for the error event each time. Signed-off-by: Brian Foster --- Hi all, This test accompanies the torn log write detection series here: http://oss.sgi.com/pipermail/xfs/2015-November/044945.html ... and is based on the associated test mechanism. Note that this is quick and dirty and subject to change based on review of that series. I also hadn't put too much thought into how many iterations to use, how long the test should run in general and what the range of the injection param should be. As such, this is RFC for now. Thoughts appreciated. Brian tests/xfs/350 | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/350.out | 2 ++ tests/xfs/group | 1 + 3 files changed, 88 insertions(+) create mode 100755 tests/xfs/350 create mode 100644 tests/xfs/350.out diff --git a/tests/xfs/350 b/tests/xfs/350 new file mode 100755 index 0000000..f18637a --- /dev/null +++ b/tests/xfs/350 @@ -0,0 +1,85 @@ +#! /bin/bash +# FS QA Test No. 350 +# +# Use the XFS log record CRC error injection mechanism to test torn writes to +# the log. The error injection mechanism writes an invalid CRC and shuts down +# the filesystem. The test verifies that a subsequent remount recovers the log +# and that the filesystem is consistent. +# +# Note that this test requires a DEBUG mode kernel. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Red Hat, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* + killall -9 fsstress > /dev/null 2>&1 + wait > /dev/null 2>&1 +} + +rm -f $seqres.full + +# get standard environment, filters and checks +. ./common/rc + +# real QA test starts here + +# Modify as appropriate. +_supported_fs xfs +_supported_os Linux +_require_xfs_sysfs $(_short_dev $SCRATCH_DEV)/log/log_badcrc_factor +_require_scratch + +echo "Silence is golden." + +_scratch_mkfs >> $seqres.full 2>&1 || _fail "mkfs failed" +_scratch_mount + +sdev=$(_short_dev $SCRATCH_DEV) + +for i in $(seq 1 5); do + # Enable error injection. Use a random bad crc factor up to 100 + # (increase this value to run fsstress longer). + factor=$((RANDOM % 100)) + echo iteration $i log_badcrc_factor: $factor >> $seqres.full 2>&1 + echo $factor > /sys/fs/xfs/$sdev/log/log_badcrc_factor + + # Run fsstress until the filesystem shuts down. It will shut down + # automatically when error injection triggers. + $FSSTRESS_PROG -d $SCRATCH_MNT -p 4 -n 999999 >> $seqres.full 2>&1 + + # Verify that we can remount the fs. Log recovery should handle the torn + # write. + _scratch_unmount + _scratch_mount || _fail "failed to mount" +done + +# success, all done +status=0 +exit diff --git a/tests/xfs/350.out b/tests/xfs/350.out new file mode 100644 index 0000000..c725135 --- /dev/null +++ b/tests/xfs/350.out @@ -0,0 +1,2 @@ +QA output created by 350 +Silence is golden. diff --git a/tests/xfs/group b/tests/xfs/group index 8261f86..bf66c0f 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -220,3 +220,4 @@ 303 auto quick quota 304 auto quick quota 305 auto quota +350 auto log metadata -- 2.1.0 From sandeen@sandeen.net Thu Nov 12 09:58:49 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2AEBF7F66 for ; Thu, 12 Nov 2015 09:58:49 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id E8D3E304039 for ; Thu, 12 Nov 2015 07:58:48 -0800 (PST) X-ASG-Debug-ID: 1447343926-04bdf03f03143020001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id NbU7rcsJNNwE3bb8 for ; Thu, 12 Nov 2015 07:58:46 -0800 (PST) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 8C58F65FC660 for ; Thu, 12 Nov 2015 09:58:46 -0600 (CST) Subject: [PATCH V2] xfs_fsr: more selinux fixes To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH V2] xfs_fsr: more selinux fixes References: <5643B8B7.9030708@sandeen.net> From: Eric Sandeen Message-ID: <5644B735.2090002@sandeen.net> Date: Thu, 12 Nov 2015 09:58:45 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <5643B8B7.9030708@sandeen.net> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1447343926 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24333 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Commit: 1adfe5c xfs_fsr: fix SWAPEXT failures under selinux attempted to fix up the fork offset under selinux, where the temp file is created with a local attribute, but the target file has remote attributes; this can lead to a smaller data area in the temp inode, without enough room to swap extents from the target inode. I remedied this by pushing the temp file attribute to remote, but *only* if the target file's attr was also remote. However, I have a case from the field where the parent dir and the target file both have a context of: system_u:object_r:samba_share_t:s0 but new files created in the dir have a context of unconfined_u:object_r:samba_share_t:s0 This means the temp file has a smaller forkoff, and less space in the inode for data, so we fail to swap the extents between the two, because they don't fit. The following patch fixes this by allowing xfs_fsr to kick the tempfile's attr out of local format even if the target file's attr is local, if this will move the forkoff in the right direction. This does pass all our fsr xfstests, though I'm not sure we have any real coverage of fsr under selinux... The only functional change is the test at the very end of the patch; the rest is comments, ascii art, and removing the now-extraneous XFS_IOC_FSGETXATTRA ioctl. Signed-off-by: Eric Sandeen --- V2: Fix a whitespace issue. Brian, I didn't add the debug printf; we don't do it for any other attr operations unless they fail, and I don't think it's needed here either. And I couldn't fit it gracefully into 80 cols. ;) diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c index b902acc..2bae1d0 100644 --- a/fsr/xfs_fsr.c +++ b/fsr/xfs_fsr.c @@ -1115,14 +1115,12 @@ fsr_setup_attr_fork( } continue; } else if (i == 0) { - struct fsxattr fsx; /* * First pass, and temp file already has an inline * xattr, probably due to selinux. * * It's *possible* that the temp file attr area - * is larger than the target file's, if the - * target file's attrs are not inline: + * is larger than the target file's: * * Target Temp * +-------+ 0 +-------+ 0 @@ -1132,28 +1130,18 @@ fsr_setup_attr_fork( * | | v-------v forkoff * | | | | * v-------v forkoff | Attr | local - * | Attr | ext/btree | | + * | Attr | | | * +-------+ +-------+ - * - * FSGETXATTRA will tell us nr of attr extents in - * target, if any. If none, it's local: */ - memset(&fsx, 0, sizeof(fsx)); - if (ioctl(fd, XFS_IOC_FSGETXATTRA, &fsx)) { - fsrprintf(_("FSGETXATTRA failed on target\n")); - return -1; - } - /* - * If target attr area is less than the temp's (diff < 0) - * and the target is not local, write a big attr to - * the temp file to knock the attr out of local format, - * to match the target. (This should actually *increase* - * the temp file's forkoffset when the attr moves out - * of the inode) + * If target attr area is less than the temp's + * (diff < 0) write a big attr to the temp file to knock + * the attr out of local format. + * (This should actually *increase* the temp file's + * forkoffset when the attr moves out of the inode) */ - if (diff < 0 && fsx.fsx_nextents > 0) { + if (diff < 0) { char val[2048]; memset(val, 'X', 2048); if (fsetxattr(tfd, name, val, 2048, 0)) { From bfoster@redhat.com Thu Nov 12 10:05:28 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2D3477F66 for ; Thu, 12 Nov 2015 10:05:28 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1A94F304032 for ; Thu, 12 Nov 2015 08:05:24 -0800 (PST) X-ASG-Debug-ID: 1447344323-04cb6c296a13db20001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id eq91RkDknVgEsO5s (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 08:05:23 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 1B5658F506; Thu, 12 Nov 2015 16:05:23 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tACG5MMW025559; Thu, 12 Nov 2015 11:05:22 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 1799C120059; Thu, 12 Nov 2015 11:05:22 -0500 (EST) Date: Thu, 12 Nov 2015 11:05:22 -0500 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH V2] xfs_fsr: more selinux fixes Message-ID: <20151112160521.GE5068@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH V2] xfs_fsr: more selinux fixes References: <5643B8B7.9030708@sandeen.net> <5644B735.2090002@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5644B735.2090002@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447344323 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Nov 12, 2015 at 09:58:45AM -0600, Eric Sandeen wrote: > Commit: > > 1adfe5c xfs_fsr: fix SWAPEXT failures under selinux > > attempted to fix up the fork offset under selinux, where > the temp file is created with a local attribute, but the > target file has remote attributes; this can lead to a smaller > data area in the temp inode, without enough room to swap extents > from the target inode. I remedied this by pushing the temp > file attribute to remote, but *only* if the target file's attr > was also remote. > > However, I have a case from the field where the parent dir > and the target file both have a context of: > > system_u:object_r:samba_share_t:s0 > > but new files created in the dir have a context of > > unconfined_u:object_r:samba_share_t:s0 > > This means the temp file has a smaller forkoff, and less space > in the inode for data, so we fail to swap the extents between > the two, because they don't fit. > > The following patch fixes this by allowing xfs_fsr to > kick the tempfile's attr out of local format even if the target > file's attr is local, if this will move the forkoff in the right > direction. This does pass all our fsr xfstests, though I'm not > sure we have any real coverage of fsr under selinux... > > The only functional change is the test at the very end of the > patch; the rest is comments, ascii art, and removing the > now-extraneous XFS_IOC_FSGETXATTRA ioctl. > > Signed-off-by: Eric Sandeen > --- > > V2: Fix a whitespace issue. > > Brian, I didn't add the debug printf; we don't do it for any > other attr operations unless they fail, and I don't think it's needed > here either. And I couldn't fit it gracefully into 80 cols. ;) > Ok, no problem. I was originally thinking that this would affect the target file. As pointed out on IRC, the target file xattrs should remain unmodified and the extent information is just swapped into the data area. Looks fine to me: Reviewed-by: Brian Foster > diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c > index b902acc..2bae1d0 100644 > --- a/fsr/xfs_fsr.c > +++ b/fsr/xfs_fsr.c > @@ -1115,14 +1115,12 @@ fsr_setup_attr_fork( > } > continue; > } else if (i == 0) { > - struct fsxattr fsx; > /* > * First pass, and temp file already has an inline > * xattr, probably due to selinux. > * > * It's *possible* that the temp file attr area > - * is larger than the target file's, if the > - * target file's attrs are not inline: > + * is larger than the target file's: > * > * Target Temp > * +-------+ 0 +-------+ 0 > @@ -1132,28 +1130,18 @@ fsr_setup_attr_fork( > * | | v-------v forkoff > * | | | | > * v-------v forkoff | Attr | local > - * | Attr | ext/btree | | > + * | Attr | | | > * +-------+ +-------+ > - * > - * FSGETXATTRA will tell us nr of attr extents in > - * target, if any. If none, it's local: > */ > > - memset(&fsx, 0, sizeof(fsx)); > - if (ioctl(fd, XFS_IOC_FSGETXATTRA, &fsx)) { > - fsrprintf(_("FSGETXATTRA failed on target\n")); > - return -1; > - } > - > /* > - * If target attr area is less than the temp's (diff < 0) > - * and the target is not local, write a big attr to > - * the temp file to knock the attr out of local format, > - * to match the target. (This should actually *increase* > - * the temp file's forkoffset when the attr moves out > - * of the inode) > + * If target attr area is less than the temp's > + * (diff < 0) write a big attr to the temp file to knock > + * the attr out of local format. > + * (This should actually *increase* the temp file's > + * forkoffset when the attr moves out of the inode) > */ > - if (diff < 0 && fsx.fsx_nextents > 0) { > + if (diff < 0) { > char val[2048]; > memset(val, 'X', 2048); > if (fsetxattr(tfd, name, val, 2048, 0)) { > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Thu Nov 12 10:32:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 3A64C7F55 for ; Thu, 12 Nov 2015 10:32:01 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 92BF5AC002 for ; Thu, 12 Nov 2015 08:31:57 -0800 (PST) X-ASG-Debug-ID: 1447345913-04cb6c296c13e5e0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id Ka9JCfRYZDVKlOEO for ; Thu, 12 Nov 2015 08:31:53 -0800 (PST) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 059E165FC660 for ; Thu, 12 Nov 2015 10:31:52 -0600 (CST) Subject: [PATCH V2] xfs: create helper for bmap finish & trans join in attr code To: xfs@oss.sgi.com X-ASG-Orig-Subj: [PATCH V2] xfs: create helper for bmap finish & trans join in attr code References: <56441B8E.6070603@redhat.com> From: Eric Sandeen Message-ID: <5644BEF8.6070201@sandeen.net> Date: Thu, 12 Nov 2015 10:31:52 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <56441B8E.6070603@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1447345913 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24333 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Calls to xfs_bmap_finish() and xfs_trans_ijoin(), and the associated comments were replicated several times across the attribute code. Factor out a new helper function, xfs_bmap_finish_and_join() to take care of this. This also fixes an ASSERT() test of an uninitialized variable in several locations: error = xfs_attr_thing(&args); if (!error) { error = xfs_bmap_finish(&args.trans, args.flist, &committed); } if (error) { ASSERT(committed); If the first xfs_attr_thing() failed, we'd skip the xfs_bmap_finish, never set "committed", and then test it in the ASSERT. Addresses-Coverity-Id: 102360 Addresses-Coverity-Id: 102361 Addresses-Coverity-Id: 102363 Addresses-Coverity-Id: 102364 Signed-off-by: Eric Sandeen --- V2: Do the same for xfs_attr_remote.c ->>> I don't think I broke the logic, but feel free to scrutinize it :) libxfs/xfs_attr.c | 168 ++++++++++++----------------------------------- libxfs/xfs_attr_remote.c | 33 +-------- xfs_attr.h | 2 3 files changed, 52 insertions(+), 151 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index f949818..1bd430e 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -194,6 +194,28 @@ xfs_attr_calc_size( } int +xfs_attr_bmap_finish_and_join( + struct xfs_da_args *args, + struct xfs_inode *dp) +{ + int error, committed; + + error = xfs_bmap_finish(&args->trans, args->flist, &committed); + if (error) { + ASSERT(committed); + return error; + } + /* + * bmap_finish() may have committed the last trans and started + * a new one. We need the inode to be in all transactions. + */ + if (committed) + xfs_trans_ijoin(args->trans, dp, 0); + + return 0; +} + +int xfs_attr_set( struct xfs_inode *dp, const unsigned char *name, @@ -207,7 +229,7 @@ xfs_attr_set( struct xfs_trans_res tres; xfs_fsblock_t firstblock; int rsvd = (flags & ATTR_ROOT) != 0; - int error, err2, committed, local; + int error, err2, local; XFS_STATS_INC(mp, xs_attr_set); @@ -334,25 +356,15 @@ xfs_attr_set( */ xfs_bmap_init(args.flist, args.firstblock); error = xfs_attr_shortform_to_leaf(&args); - if (!error) { - error = xfs_bmap_finish(&args.trans, args.flist, - &committed); - } + if (!error) + error = xfs_attr_bmap_finish_and_join(&args, dp); if (error) { - ASSERT(committed); args.trans = NULL; xfs_bmap_cancel(&flist); goto out; } /* - * bmap_finish() may have committed the last trans and started - * a new one. We need the inode to be in all transactions. - */ - if (committed) - xfs_trans_ijoin(args.trans, dp, 0); - - /* * Commit the leaf transformation. We'll need another (linked) * transaction to add the new attribute to the leaf. */ @@ -568,7 +580,7 @@ xfs_attr_leaf_addname(xfs_da_args_t *args) { xfs_inode_t *dp; struct xfs_buf *bp; - int retval, error, committed, forkoff; + int retval, error, forkoff; trace_xfs_attr_leaf_addname(args); @@ -628,25 +640,15 @@ xfs_attr_leaf_addname(xfs_da_args_t *args) */ xfs_bmap_init(args->flist, args->firstblock); error = xfs_attr3_leaf_to_node(args); - if (!error) { - error = xfs_bmap_finish(&args->trans, args->flist, - &committed); - } + if (!error) + error = xfs_attr_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); return error; } /* - * bmap_finish() may have committed the last trans and started - * a new one. We need the inode to be in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); - - /* * Commit the current trans (including the inode) and start * a new one. */ @@ -729,25 +731,13 @@ xfs_attr_leaf_addname(xfs_da_args_t *args) xfs_bmap_init(args->flist, args->firstblock); error = xfs_attr3_leaf_to_shortform(bp, args, forkoff); /* bp is gone due to xfs_da_shrink_inode */ - if (!error) { - error = xfs_bmap_finish(&args->trans, - args->flist, - &committed); - } + if (!error) + error = xfs_attr_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); return error; } - - /* - * bmap_finish() may have committed the last trans - * and started a new one. We need the inode to be - * in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); } /* @@ -775,7 +765,7 @@ xfs_attr_leaf_removename(xfs_da_args_t *args) { xfs_inode_t *dp; struct xfs_buf *bp; - int error, committed, forkoff; + int error, forkoff; trace_xfs_attr_leaf_removename(args); @@ -803,23 +793,13 @@ xfs_attr_leaf_removename(xfs_da_args_t *args) xfs_bmap_init(args->flist, args->firstblock); error = xfs_attr3_leaf_to_shortform(bp, args, forkoff); /* bp is gone due to xfs_da_shrink_inode */ - if (!error) { - error = xfs_bmap_finish(&args->trans, args->flist, - &committed); - } + if (!error) + error = xfs_attr_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); return error; } - - /* - * bmap_finish() may have committed the last trans and started - * a new one. We need the inode to be in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); } return 0; } @@ -877,7 +857,7 @@ xfs_attr_node_addname(xfs_da_args_t *args) xfs_da_state_blk_t *blk; xfs_inode_t *dp; xfs_mount_t *mp; - int committed, retval, error; + int retval, error; trace_xfs_attr_node_addname(args); @@ -938,26 +918,13 @@ restart: state = NULL; xfs_bmap_init(args->flist, args->firstblock); error = xfs_attr3_leaf_to_node(args); - if (!error) { - error = xfs_bmap_finish(&args->trans, - args->flist, - &committed); - } + if (!error) + error = xfs_attr_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); goto out; } - - /* - * bmap_finish() may have committed the last trans - * and started a new one. We need the inode to be - * in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); - /* * Commit the node conversion and start the next * trans in the chain. @@ -977,23 +944,13 @@ restart: */ xfs_bmap_init(args->flist, args->firstblock); error = xfs_da3_split(state); - if (!error) { - error = xfs_bmap_finish(&args->trans, args->flist, - &committed); - } + if (!error) + error = xfs_attr_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); goto out; } - - /* - * bmap_finish() may have committed the last trans and started - * a new one. We need the inode to be in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); } else { /* * Addition succeeded, update Btree hashvals. @@ -1086,25 +1043,13 @@ restart: if (retval && (state->path.active > 1)) { xfs_bmap_init(args->flist, args->firstblock); error = xfs_da3_join(state); - if (!error) { - error = xfs_bmap_finish(&args->trans, - args->flist, - &committed); - } + if (!error) + error = xfs_attr_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); goto out; } - - /* - * bmap_finish() may have committed the last trans - * and started a new one. We need the inode to be - * in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); } /* @@ -1146,7 +1091,7 @@ xfs_attr_node_removename(xfs_da_args_t *args) xfs_da_state_blk_t *blk; xfs_inode_t *dp; struct xfs_buf *bp; - int retval, error, committed, forkoff; + int retval, error, forkoff; trace_xfs_attr_node_removename(args); @@ -1220,24 +1165,13 @@ xfs_attr_node_removename(xfs_da_args_t *args) if (retval && (state->path.active > 1)) { xfs_bmap_init(args->flist, args->firstblock); error = xfs_da3_join(state); - if (!error) { - error = xfs_bmap_finish(&args->trans, args->flist, - &committed); - } + if (!error) + error = xfs_attr_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); goto out; } - - /* - * bmap_finish() may have committed the last trans and started - * a new one. We need the inode to be in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); - /* * Commit the Btree join operation and start a new trans. */ @@ -1265,25 +1199,13 @@ xfs_attr_node_removename(xfs_da_args_t *args) xfs_bmap_init(args->flist, args->firstblock); error = xfs_attr3_leaf_to_shortform(bp, args, forkoff); /* bp is gone due to xfs_da_shrink_inode */ - if (!error) { - error = xfs_bmap_finish(&args->trans, - args->flist, - &committed); - } + if (!error) + error = xfs_attr_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); goto out; } - - /* - * bmap_finish() may have committed the last trans - * and started a new one. We need the inode to be - * in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); } else xfs_trans_brelse(args->trans, bp); } diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c index f3ed9bf..b66a83e 100644 --- a/fs/xfs/libxfs/xfs_attr_remote.c +++ b/fs/xfs/libxfs/xfs_attr_remote.c @@ -448,8 +448,6 @@ xfs_attr_rmtval_set( * Roll through the "value", allocating blocks on disk as required. */ while (blkcnt > 0) { - int committed; - /* * Allocate a single extent, up to the size of the value. * @@ -467,24 +465,14 @@ xfs_attr_rmtval_set( error = xfs_bmapi_write(args->trans, dp, (xfs_fileoff_t)lblkno, blkcnt, XFS_BMAPI_ATTRFORK, args->firstblock, args->total, &map, &nmap, args->flist); - if (!error) { - error = xfs_bmap_finish(&args->trans, args->flist, - &committed); - } + if (!error) + xfs_attr_bmap_finish_and_join(args, dp); if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); return error; } - /* - * bmap_finish() may have committed the last trans and started - * a new one. We need the inode to be in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, dp, 0); - ASSERT(nmap == 1); ASSERT((map.br_startblock != DELAYSTARTBLOCK) && (map.br_startblock != HOLESTARTBLOCK)); @@ -615,31 +603,20 @@ xfs_attr_rmtval_remove( blkcnt = args->rmtblkcnt; done = 0; while (!done) { - int committed; - xfs_bmap_init(args->flist, args->firstblock); error = xfs_bunmapi(args->trans, args->dp, lblkno, blkcnt, XFS_BMAPI_ATTRFORK, 1, args->firstblock, args->flist, &done); - if (!error) { - error = xfs_bmap_finish(&args->trans, args->flist, - &committed); - } + if (!error) + error = xfs_attr_bmap_finish_and_join(args, args->dp); + if (error) { - ASSERT(committed); args->trans = NULL; xfs_bmap_cancel(args->flist); return error; } /* - * bmap_finish() may have committed the last trans and started - * a new one. We need the inode to be in all transactions. - */ - if (committed) - xfs_trans_ijoin(args->trans, args->dp, 0); - - /* * Close out trans and start the next one in the chain. */ error = xfs_trans_roll(&args->trans, args->dp); diff --git a/fs/xfs/xfs_attr.h b/fs/xfs/xfs_attr.h index dd48245..18813d0 100644 --- a/fs/xfs/xfs_attr.h +++ b/fs/xfs/xfs_attr.h @@ -144,6 +144,8 @@ int xfs_attr_list_int(struct xfs_attr_list_context *); int xfs_inode_hasattr(struct xfs_inode *ip); int xfs_attr_get(struct xfs_inode *ip, const unsigned char *name, unsigned char *value, int *valuelenp, int flags); +int xfs_attr_bmap_finish_and_join(struct xfs_da_args *args, + struct xfs_inode *dp); int xfs_attr_set(struct xfs_inode *dp, const unsigned char *name, unsigned char *value, int valuelen, int flags); int xfs_attr_remove(struct xfs_inode *dp, const unsigned char *name, int flags); From BATV+89ba7098823c58057a3d+4463+infradead.org+hch@bombadil.srs.infradead.org Thu Nov 12 10:58:05 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 5A0437F62 for ; Thu, 12 Nov 2015 10:58:05 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id B4C65AC004 for ; Thu, 12 Nov 2015 08:58:04 -0800 (PST) X-ASG-Debug-ID: 1447347481-04cbb02423154a80001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id cM8DqH4jKGBlB0nn (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 12 Nov 2015 08:58:02 -0800 (PST) X-Barracuda-Envelope-From: BATV+89ba7098823c58057a3d+4463+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZwvCD-0001g4-CA; Thu, 12 Nov 2015 16:58:01 +0000 Date: Thu, 12 Nov 2015 08:58:01 -0800 From: Christoph Hellwig To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH V2] xfs: create helper for bmap finish & trans join in attr code Message-ID: <20151112165801.GA14854@infradead.org> X-ASG-Orig-Subj: Re: [PATCH V2] xfs: create helper for bmap finish & trans join in attr code References: <56441B8E.6070603@redhat.com> <5644BEF8.6070201@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5644BEF8.6070201@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447347482 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.30 X-Barracuda-Spam-Status: No, SCORE=0.30 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA827, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24335 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.20 BSF_SC0_SA827 Custom Outbreak Rule BSF_SC0_SA827 I think the problem here is simply that our interfaces suck. xfs_trans_roll really needs to rejoin any inode to the new transaction to that was joined to the previous one. Once we've fixed that we can get rid of the silly committed arguments and everyone will be happy. From darrick.wong@oracle.com Thu Nov 12 11:35:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 26B157F66 for ; Thu, 12 Nov 2015 11:35:09 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 169D9304032 for ; Thu, 12 Nov 2015 09:35:05 -0800 (PST) X-ASG-Debug-ID: 1447349702-04cbb02422155820001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id qxP6HWJB0VBEA9TB (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 09:35:02 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tACHYU6f031722 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 12 Nov 2015 17:34:30 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tACHYTHp010924 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Thu, 12 Nov 2015 17:34:29 GMT Received: from abhmp0010.oracle.com (abhmp0010.oracle.com [141.146.116.16]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tACHYTJc005296; Thu, 12 Nov 2015 17:34:29 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 12 Nov 2015 09:34:28 -0800 Date: Thu, 12 Nov 2015 09:34:27 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Cc: david@fromorbit.com, fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls Message-ID: <20151112173427.GC2217@birch.djwong.org> X-ASG-Orig-Subj: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls References: <20151111192628.15056.6451.stgit@birch.djwong.org> <20151112090756.GA25685@infradead.org> <20151112125115.GA28822@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151112125115.GA28822@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447349702 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24335 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Thu, Nov 12, 2015 at 04:51:15AM -0800, Christoph Hellwig wrote: > On Thu, Nov 12, 2015 at 01:07:56AM -0800, Christoph Hellwig wrote: > > Looks fine: > > > > Acked-by: Christoph Hellwig > > Actually I take this back. I had though this was the existing series > with my fixes, but this one still incorrectly assumes that if reflink > works dedup works as well, leading to lots of false failures on nfs. Bleargh, _require_*_dedupe forgot to check for ENOTTY output, so all the dedupe tests should have _notrun. Also, generic/806 was calling the wrong _require. I'll start renumbering tests; Christoph, did you see anything else? --D > -- > To unsubscribe from this list: send the line "unsubscribe fstests" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html From BATV+89ba7098823c58057a3d+4463+infradead.org+hch@bombadil.srs.infradead.org Thu Nov 12 11:36:46 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9031E7F66 for ; Thu, 12 Nov 2015 11:36:46 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6C1ED8F8035 for ; Thu, 12 Nov 2015 09:36:43 -0800 (PST) X-ASG-Debug-ID: 1447349801-04cbb02423155890001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id Q0Kct2EZqIYzc1TD (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 12 Nov 2015 09:36:42 -0800 (PST) X-Barracuda-Envelope-From: BATV+89ba7098823c58057a3d+4463+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZwvnX-0003FB-Pv; Thu, 12 Nov 2015 17:36:35 +0000 Date: Thu, 12 Nov 2015 09:36:35 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Christoph Hellwig , david@fromorbit.com, fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls Message-ID: <20151112173635.GA9247@infradead.org> X-ASG-Orig-Subj: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls References: <20151111192628.15056.6451.stgit@birch.djwong.org> <20151112090756.GA25685@infradead.org> <20151112125115.GA28822@infradead.org> <20151112173427.GC2217@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151112173427.GC2217@birch.djwong.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447349801 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24335 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Thu, Nov 12, 2015 at 09:34:27AM -0800, Darrick J. Wong wrote: > Bleargh, _require_*_dedupe forgot to check for ENOTTY output, so all the dedupe > tests should have _notrun. > > Also, generic/806 was calling the wrong _require. > > I'll start renumbering tests; Christoph, did you see anything else? Looks fine so far otherwise. From david@fromorbit.com Thu Nov 12 14:07:20 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B72EC7F66 for ; Thu, 12 Nov 2015 14:07:20 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 995C48F804B for ; Thu, 12 Nov 2015 12:07:17 -0800 (PST) X-ASG-Debug-ID: 1447358831-04cbb02424158860001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id w845YYowVGfcjD52 for ; Thu, 12 Nov 2015 12:07:11 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DQBwDC8ERWPIYELHleFhIBAoMQU2+CX6hdAwaLM4k6IYVpBAICgT5NAQEBAQEBBwEBAQFAAT+ENAEBAQMBIw8BIyMFCwgDDgoCAgUhAgIPBSUDBxoTiCYHDrNKkGQBAQEHAiEZaIUMhUWHdYFEBZJng2GFHYgCgiyaIYJ0HYFqKjQBhTwBAQE Received: from ppp121-44-4-134.lns20.syd4.internode.on.net (HELO dastard) ([121.44.4.134]) by ipmail04.adl6.internode.on.net with ESMTP; 13 Nov 2015 06:36:42 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zwy8n-0005VS-JX; Fri, 13 Nov 2015 07:06:41 +1100 Date: Fri, 13 Nov 2015 07:06:41 +1100 From: Dave Chinner To: Tetsuo Handa Cc: Arkadiusz =?utf-8?Q?Mi=C5=9Bkiewicz?= , linux-mm@kvack.org, xfs@oss.sgi.com Subject: Re: memory reclaim problems on fs usage Message-ID: <20151112200641.GR19199@dastard> X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage References: <201511102313.36685.arekm@maven.pl> <201511111719.44035.arekm@maven.pl> <201511120719.EBF35970.OtSOHOVFJMFQFL@I-love.SAKURA.ne.jp> <201511120706.10739.arekm@maven.pl> <56449E44.7020407@I-love.SAKURA.ne.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <56449E44.7020407@I-love.SAKURA.ne.jp> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1447358831 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24339 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Nov 12, 2015 at 11:12:20PM +0900, Tetsuo Handa wrote: > On 2015/11/12 15:06, Arkadiusz Miśkiewicz wrote: > >On Wednesday 11 of November 2015, Tetsuo Handa wrote: > >>Arkadiusz Mi?kiewicz wrote: > >>>This patch is against which tree? (tried 4.1, 4.2 and 4.3) > >> > >>Oops. Whitespace-damaged. This patch is for vanilla 4.1.2. > >>Reposting with one condition corrected. > > > >Here is log: > > > >http://ixion.pld-linux.org/~arekm/log-mm-1.txt.gz > > > >Uncompresses is 1.4MB, so not posting here. > > > Thank you for the log. The result is unexpected for me. > > What I feel strange is that free: remained below min: level. > While GFP_ATOMIC allocations can access memory reserves, I think that > these free: values are too small. Memory allocated by GFP_ATOMIC should > be released shortly, or any __GFP_WAIT allocations would stall for long. > > [ 8633.753528] Node 0 Normal free:128kB min:7104kB low:8880kB > high:10656kB active_anon:59008kB inactive_anon:75240kB > active_file:14712kB inactive_file:3256960kB unevictable:0kB .... > isolated(anon):0kB isolated(file):0kB present:5242880kB > managed:5109980kB mlocked:0kB dirty:20kB writeback:0kB mapped:7368kB .... > pages_scanned:176 all_unreclaimable? no So: we have 3.2GB (800,000 pages) of immediately reclaimable page cache in this zone (inactive_file) and a GFP_ATOMIC allocation context so we can only really reclaim clean page cache pages reliably. So why have we only scanned *176* pages* during reclaim? On other OOM reports in this trace it's as low as 12. Either that stat is completely wrong, or we're not doing sufficient page LRU reclaim scanning.... > [ 9662.234685] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. > > vmstat_update() and submit_flushes() remained pending for about 110 seconds. > If xlog_cil_push_work() were spinning inside GFP_NOFS allocation, it should be > reported as MemAlloc: traces, but no such lines are recorded. I don't know why > xlog_cil_push_work() did not call schedule() for so long. I'd say it is repeatedly waiting for IO completion on log buffers to write out the checkpoint. It's making progress, just if it's taking multiple second per journal IO it will take a long time to write a checkpoint. All the other blocked tasks in XFS inode reclaim are either waiting directly on IO completion or waiting for the log to complete a flush, so this really just looks like an overloaded IO subsystem to me.... > Well, what steps should we try next for isolating the problem? I think there's plenty that needs to be explained from this information. We don't have a memory allocation livelock - slow progress is being made on reclaiming inodes, but we clearly have a zone imbalance and direct page reclaim is not freeing clean inactive pages when there are huge numbers of them available for reclaim. Somebody who understands the page reclaim code needs to look closely at the code to explain this behaviour now, then we'll know what information needs to be gathered next... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Nov 12 14:12:43 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 48C807F66 for ; Thu, 12 Nov 2015 14:12:43 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id D06CBAC002 for ; Thu, 12 Nov 2015 12:12:39 -0800 (PST) X-ASG-Debug-ID: 1447359152-04cb6c296c143570001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id 7M3nQHvgp74BGaAz for ; Thu, 12 Nov 2015 12:12:33 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2AXCAAn8kRWPIYELHlWCCgBAoMQgUKCX4N+pF8DBoszhS2CfYEQhgoEAgKBPk0BAQEBAQEHAQEBAUABP4Q1AQEEOhwjEAgDDgoJJQ8FJQMHGhOILcQ7AQEIAiEZhXSFRYQ2hQMFlkiNH5xNgnQdgWoqNIU9AQEB Received: from ppp121-44-4-134.lns20.syd4.internode.on.net (HELO dastard) ([121.44.4.134]) by ipmail04.adl6.internode.on.net with ESMTP; 13 Nov 2015 06:42:32 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZwyER-0005W5-Lq; Fri, 13 Nov 2015 07:12:31 +1100 Date: Fri, 13 Nov 2015 07:12:31 +1100 From: Dave Chinner To: Christoph Hellwig Cc: Eric Sandeen , xfs@oss.sgi.com Subject: Re: [PATCH V2] xfs: create helper for bmap finish & trans join in attr code Message-ID: <20151112201231.GS19199@dastard> X-ASG-Orig-Subj: Re: [PATCH V2] xfs: create helper for bmap finish & trans join in attr code References: <56441B8E.6070603@redhat.com> <5644BEF8.6070201@sandeen.net> <20151112165801.GA14854@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151112165801.GA14854@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1447359153 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24339 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Nov 12, 2015 at 08:58:01AM -0800, Christoph Hellwig wrote: > I think the problem here is simply that our interfaces suck. > xfs_trans_roll really needs to rejoin any inode to the new transaction > to that was joined to the previous one. Once we've fixed that we can > get rid of the silly committed arguments and everyone will be happy. xfs_trans_roll is not specifically for rolling transactions with locked inodes in them. We could use it for any object that needs multiple transactions to modify. e.g. we could roll transactions across an AGF (using hold+join) so that it remains locked across multiple allocation/free transactions. So I think pushing the inode joining inside xfs_trans_roll() is not the right thing to do, but an "inode specific wrapper" such as "xfs_trans_roll_inode()" would handle this just fine... Cheers, Dave. -- Dave Chinner david@fromorbit.com From arekm@maven.pl Thu Nov 12 15:28:40 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 39F027F66 for ; Thu, 12 Nov 2015 15:28:40 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id C2C50AC002 for ; Thu, 12 Nov 2015 13:28:36 -0800 (PST) X-ASG-Debug-ID: 1447363709-04bdf03f0514ae30001-NocioJ Received: from mail-lf0-f51.google.com (mail-lf0-f51.google.com [209.85.215.51]) by cuda.sgi.com with ESMTP id 6ybEbmZoWCcVWBMC (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 12 Nov 2015 13:28:30 -0800 (PST) X-Barracuda-Envelope-From: arekm@maven.pl X-Barracuda-Apparent-Source-IP: 209.85.215.51 Received: by lffu14 with SMTP id u14so42009911lff.1 for ; Thu, 12 Nov 2015 13:28:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maven.pl; s=maven; h=from:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; bh=n7XN7de5lSCOxC500e8GRABdsEbtyuLtvbCrtkyb/l4=; b=RW4yEegy8UiAYS02jlKd4KaZ/gJQfUexI6HGXIBDIQZKSX51VUPethDkrOIf0iVo5O o9BtaI4pYOIodOgi/czujSiaxu6W24260fawtZhz3MsvoT3vyxvEsvY7CrS5mWod+TB0 RYhyGCURDjPD3jM8KNI3GlOM77m6T+F14QjDw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:user-agent:cc:references :in-reply-to:mime-version:content-type:content-transfer-encoding :message-id; bh=n7XN7de5lSCOxC500e8GRABdsEbtyuLtvbCrtkyb/l4=; b=OvrhvHVdS7/X+7kCWT2gqowV1xSXoSTUClmUGatA1QeKCaDmCLN1LZsFxhLZKkTFGG +d559Fmi7V/0r2DmV4Jow4kKDGFaOqdpaZAPHPW4MeXejDWNewggWFFndU5KPPgSxS8G mvhUEBYgYeWCD/GIAhSsTn7K+/GMFz1BpCUc8Z8BSx0NtEqT7VbIZ/UC81sZvoh8LTX2 zB+2wLqBNIvVdjFzF+K5afMelNWQPUdu3oAu5tbjNcZAbjsBuV/z1pzbQPkfdFrMfLOY pL7RuuGbmoneyiEEm3cXeffWElsy6dZdbSunwnOjC19fXizNASypXhYVKAekWAwnH/x7 FevA== X-Gm-Message-State: ALoCoQl4v6q72VUFnlNGsDYPOei6/dwg2k77OFYydurR7Egh6DRgcUD0Ov0YUdZpVZE216OWsoGh X-Received: by 10.25.22.214 with SMTP id 83mr8482368lfw.8.1447363708471; Thu, 12 Nov 2015 13:28:28 -0800 (PST) Received: from xps.localnet (85-222-71-204.dynamic.chello.pl. [85.222.71.204]) by smtp.gmail.com with ESMTPSA id zz9sm2573920lbb.32.2015.11.12.13.28.27 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 12 Nov 2015 13:28:27 -0800 (PST) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= To: Tetsuo Handa Subject: Re: memory reclaim problems on fs usage Date: Thu, 12 Nov 2015 22:28:26 +0100 X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage User-Agent: KMail/1.13.7 (Linux/4.3.0; KDE/4.14.13; x86_64; ; ) Cc: linux-mm@kvack.org, xfs@oss.sgi.com References: <201511102313.36685.arekm@maven.pl> <201511120706.10739.arekm@maven.pl> <56449E44.7020407@I-love.SAKURA.ne.jp> In-Reply-To: <56449E44.7020407@I-love.SAKURA.ne.jp> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201511122228.26399.arekm@maven.pl> X-Barracuda-Connect: mail-lf0-f51.google.com[209.85.215.51] X-Barracuda-Start-Time: 1447363710 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24342 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Thursday 12 of November 2015, Tetsuo Handa wrote: > On 2015/11/12 15:06, Arkadiusz Mi=C5=9Bkiewicz wrote: > > On Wednesday 11 of November 2015, Tetsuo Handa wrote: > >> Arkadiusz Mi?kiewicz wrote: > >>> This patch is against which tree? (tried 4.1, 4.2 and 4.3) > >>=20 > >> Oops. Whitespace-damaged. This patch is for vanilla 4.1.2. > >> Reposting with one condition corrected. > >=20 > > Here is log: > >=20 > > http://ixion.pld-linux.org/~arekm/log-mm-1.txt.gz > >=20 > > Uncompresses is 1.4MB, so not posting here. >=20 > Thank you for the log. The result is unexpected for me. [...] >=20 > vmstat_update() and submit_flushes() remained pending for about 110 > seconds. If xlog_cil_push_work() were spinning inside GFP_NOFS allocation, > it should be reported as MemAlloc: traces, but no such lines are recorded. > I don't know why xlog_cil_push_work() did not call schedule() for so long. > Anyway, applying > http://lkml.kernel.org/r/20151111160336.GD1432@dhcp22.suse.cz should solve > vmstat_update() part. To apply that patch on top of 4.1.13 I also had to apply patches listed bel= ow.=20 So in summary appllied: http://sprunge.us/GYBb http://sprunge.us/XWUX http://sprunge.us/jZjV (Could try http://lkml.kernel.org/r/20151111160336.GD1432@dhcp22.suse.cz on= ly=20 if there is version for 4.1 tree somewhere) commit 0aaa29a56e4fb0fc9e24edb649e2733a672ca099 Author: Mel Gorman Date: Fri Nov 6 16:28:37 2015 -0800 mm, page_alloc: reserve pageblocks for high-order atomic allocations on= =20 demand commit 974a786e63c96a2401a78ddba926f34c128474f1 Author: Mel Gorman Date: Fri Nov 6 16:28:34 2015 -0800 mm, page_alloc: remove MIGRATE_RESERVE commit c2d42c16ad83006a706d83e51a7268db04af733a Author: Andrew Morton Date: Thu Nov 5 18:48:43 2015 -0800 mm/vmstat.c: uninline node_page_state() commit 176bed1de5bf977938cad26551969eca8f0883b1 Author: Linus Torvalds Date: Thu Oct 15 13:01:50 2015 -0700 vmstat: explicitly schedule per-cpu work on the CPU we need it to run on [...] >=20 > Well, what steps should we try next for isolating the problem? >=20 > Swap is not used at all. Turning off swap might help. Disabled swap. >=20 > [ 8633.753574] Free swap =3D 117220800kB > [ 8633.753576] Total swap =3D 117220820kB >=20 > Turning off perf might also help. >=20 > [ 5001.394085] perf interrupt took too long (2505 > 2495), lowering > kernel.perf_event_max_sample_rate to 50100 Didn't find a way to disable perf. kernel .config option gets autoenabled b= y=20 some dependency. So left this untouched. With mentioned patches I wasn't able to reproduce memory allocation problem= =20 (still trying though).=20 Current debug log: http://ixion.pld-linux.org/~arekm/log-mm-2.txt.gz =2D-=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / ( maven.pl | pld-linux.org ) From arkadiusz.bubala@open-e.com Fri Nov 13 00:39:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 088C97F6C for ; Fri, 13 Nov 2015 00:39:33 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id EC170304032 for ; Thu, 12 Nov 2015 22:39:29 -0800 (PST) X-ASG-Debug-ID: 1447396765-04cb6c0cd10a010001-NocioJ Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.126.131]) by cuda.sgi.com with ESMTP id m7FkVG71OIzXzOmE (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 12 Nov 2015 22:39:26 -0800 (PST) X-Barracuda-Envelope-From: arkadiusz.bubala@open-e.com X-Barracuda-Apparent-Source-IP: 212.227.126.131 Received: from [192.168.176.17] ([85.14.118.246]) by mrelayeu.kundenserver.de (mreue001) with ESMTPSA (Nemesis) id 0Mbour-1ZeDaT1xI5-00Izi3 for ; Fri, 13 Nov 2015 07:39:24 +0100 Message-ID: <56458591.6070706@open-e.com> Date: Fri, 13 Nov 2015 07:39:13 +0100 From: =?UTF-8?B?QXJrYWRpdXN6IEJ1YmHFgmE=?= User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.8.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Re: "Internal error xfs_attr3_leaf_write_verify at line 216", "directory flags set on non-directory inode" and other errors References: <20150709011526.GE3902@dastard> X-ASG-Orig-Subj: Re: "Internal error xfs_attr3_leaf_write_verify at line 216", "directory flags set on non-directory inode" and other errors In-Reply-To: <20150709011526.GE3902@dastard> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K0:y2mZtt9EVvs7Ed0+dfcH8327/6atYaWQgktchukmSjRPjRxTPVI GvXMLI3Citb48GD0vELk++Tv6Jqj87BO9/muEI/LS2MQTsCfFn801N3ZtOgGEyZiJtWhZUq qpZ8/sg7YIuLCPayd4GI5/khfxvH1YWev4Lbb5TtcatCfRi0Shxn3aepyYGCXmC1aHQsmND /ZqO/xjMJRmJRR+qI9dpg== X-UI-Out-Filterresults: notjunk:1;V01:K0:b0jx3o4wduw=:3R0qi9p5IqWG60KBndkm02 vJVunLPU/qFRtXoCdeIpkn5L1cGy2zFDkEe71MWoUhzgATlKh8xwDoJ8Bj8r0FQMou+3PjP5x 6pebulyVoMEm1rteDY5IGqQ8JbrLPBPHCl0lrT2q0viIzTnDycb+KbwG/HWFr2ng2rPccVDrQ J7z/iWFBBXqARvklM6JDblPw67SQzbN0dvXo7V5AB6mE7MjQwXScub4N8J1CkJVdtET+lpCXE VRIM5WAyeODdGaiGXI1ZjcP93jLu+uD6imVUcH+KJGT2kk/77IIhpnow7x7ZZNXYlLLhQr5qM 8zA81CiIYZ9cwXBCMGHN2WHnZMgdyo2oimbbyQXRLGKgLFVLA0VYS0IL6BHjcbV5N1/NekwiC rBO54DJMzCqcQe8Gy2B5Dvkfd3tv6SXPTMa/76OuuaN8z4ruVH3G84dsGMsHT6Pu0/0doQ3xJ g1OuvMEFeEqLGv+34Die0UHAojoXT55K3yox2cy/uXCavZ34aENpAqrPtNNh2Rve8zpWLKAoW 9ZyvT/lzI2S8POcmIVs38b0xMv5BMj7OUqg45f4fP/2q78ERm3jS4hm8lg/rFsn5PQu4pziOP T2z0cn/7ktF4Cuyn15BMZ+KOeS83AjQaqLH0iJ93jiyiVLdylqnTxPCC9ZJdQBFA5AUkROEg1 fsaZGpDiVFrPvZUwywAd4dXQwtres9cPkCP3aORrqbO0QxoKvUo52P0gNDjDHORZQrvNHmK21 Ao8za6ToSPyshRq7 X-Barracuda-Connect: mout.kundenserver.de[212.227.126.131] X-Barracuda-Start-Time: 1447396766 X-Barracuda-Encrypted: DHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24351 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hello, I encountered the same issue on the Linux kernel 3.10. Here's the information you previously asked about. I hope it'll help to find the root of this problem. The ls command invoked on lost+found: #ls -la ls: 246185005270: Operation not permitted total 4 drwxr-xr-x 2 root root 33 Nov 7 00:51 . drwxr-xr-x 5 root root 61 Sep 21 21:07 .. -rwxrwxrwx 1 user user 0 Oct 27 18:22 246185005270 Execution of ls generates following error in the dmesg: [486147.297493] ffff88063af38000: 00 00 00 00 00 00 00 00 fb ee 00 00 00 00 00 00 ................ [486147.318762] ffff88063af38010: 10 00 00 00 00 20 0f e0 00 00 00 00 00 00 00 00 ..... .......... [486147.339328] ffff88063af38020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [486147.359597] ffff88063af38030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [486147.359599] XFS (dm-16): Internal error xfs_attr3_leaf_read_verify at line 256 of file fs/xfs/xfs_attr_leaf.c. Caller 0xffffffff81263bcd [486147.359599] [486147.359601] CPU: 8 PID: 14315 Comm: kworker/8:1H Tainted: G O 3.10.80 #45 [486147.359602] Hardware name: Supermicro X9DRi-LN4+/X9DR3-LN4+/X9DRi-LN4+/X9DR3-LN4+, BIOS 3.2 03/04/2015 [486147.359607] Workqueue: xfslogd xfs_buf_iodone_work [486147.359611] ffffffff816bf9df 000000000000007e ffffffff81265a42 ffffffff81263bcd [486147.359612] ffff000000000100 ffff8800518b4fc0 ffff88000de01200 ffff88085adf5000 [486147.359613] ffff88087fd18f00 0000000000000000 ffffffff8127e95f ffffffff81263bcd [486147.359614] Call Trace: [486147.359617] [] ? dump_stack+0xd/0x17 [486147.359620] [] ? xfs_corruption_error+0x62/0x90 [486147.359621] [] ? xfs_buf_iodone_work+0x8d/0xb0 [486147.359624] [] ? xfs_attr3_leaf_read_verify+0x6f/0x100 [486147.359625] [] ? xfs_buf_iodone_work+0x8d/0xb0 [486147.359627] [] ? xfs_buf_iodone_work+0x8d/0xb0 [486147.359630] [] ? process_one_work+0x141/0x3b0 [486147.359633] [] ? pwq_activate_delayed_work+0x2e/0x50 [486147.359636] [] ? worker_thread+0x112/0x370 [486147.359638] [] ? manage_workers.isra.28+0x290/0x290 [486147.359641] [] ? kthread+0xb3/0xc0 [486147.359644] [] ? sched_clock+0x5/0x10 [486147.359646] [] ? __alloc_workqueue_key+0x210/0x510 [486147.359648] [] ? kthread_freezable_should_stop+0x60/0x60 [486147.359652] [] ? ret_from_fork+0x58/0x90 [486147.359654] [] ? kthread_freezable_should_stop+0x60/0x60 [486147.359655] XFS (dm-16): Corruption detected. Unmount and run xfs_repair [486147.359664] XFS (dm-16): metadata I/O error: block 0x1ca8ebe310 ("xfs_trans_read_buf_map") error 117 numblks 8 # xfs_db -r /dev/mapper/vg+vg01-lv+n+lv0100 xfs_db> inode 246185005270 xfs_db> p core.magic = 0x494e core.mode = 0100777 core.version = 2 core.format = 2 (extents) core.nlinkv2 = 1 core.onlink = 0 core.projid_lo = 0 core.projid_hi = 0 core.uid = 106 core.gid = 103 core.flushiter = 4 core.atime.sec = Tue Oct 27 18:22:48 2015 core.atime.nsec = 000000000 core.mtime.sec = Tue Oct 27 18:22:48 2015 core.mtime.nsec = 000000000 core.ctime.sec = Sun Nov 1 19:05:21 2015 core.ctime.nsec = 337962467 core.size = 0 core.nblocks = 1 core.extsize = 0 core.nextents = 0 core.naextents = 1 core.forkoff = 9 core.aformat = 2 (extents) core.dmevmask = 0 core.dmstate = 0 core.newrtbm = 0 core.prealloc = 0 core.realtime = 0 core.immutable = 0 core.append = 0 core.sync = 0 core.noatime = 0 core.nodump = 0 core.rtinherit = 0 core.projinherit = 0 core.nosymlinks = 0 core.extsz = 0 core.extszinherit = 0 core.nodefrag = 0 core.filestream = 0 core.gen = 2298109809 next_unlinked = null u = (empty) a.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,15386639515,1,0] xfs_db> ablock 0 xfs_db> p hdr.info.forw = 0 hdr.info.back = 0 hdr.info.magic = 0xfbee hdr.count = 0 hdr.usedbytes = 0 hdr.firstused = 4096 hdr.holes = 0 hdr.freemap[0-2] = [base,size] 0:[32,4064] 1:[0,0] 2:[0,0] xfs_db> type text xfs_db> p 000: 00 00 00 00 00 00 00 00 fb ee 00 00 00 00 00 00 ................ 010: 10 00 00 00 00 20 0f e0 00 00 00 00 00 00 00 00 ................ 020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ ... (zeros only) ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ #xfs_db -r -c "convert daddr 0x1ca8ebe310 fsb" /dev/mapper/lv0100 0x3951d7c9b (15386639515) # xfs_db -r -c "fsb 0x3951d7c9b" -c p -c "type attr" -c p /dev/mapper/lv0100 000: 00000000 00000000 fbee0000 00000000 10000000 00200fe0 00000000 00000000 020: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 040: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 060: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 080: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 100: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 120: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 140: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 160: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 180: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 200: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 220: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 240: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 260: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 280: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 2a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 2c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 2e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 300: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 320: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 340: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 360: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 380: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 400: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 420: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 440: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 460: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 480: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 4a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 4c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 4e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 500: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 520: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 540: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 560: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 580: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 600: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 620: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 640: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 660: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 680: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 6a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 6c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 6e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 700: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 720: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 740: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 760: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 780: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 800: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 820: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 840: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 860: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 880: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 8a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 8c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 8e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 900: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 920: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 940: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 960: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 980: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 a00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 a20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 a40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 a60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 a80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 aa0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ac0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ae0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ba0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 be0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ca0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 cc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ce0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 d00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 d20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 d40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 d60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 d80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 da0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 de0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 e00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 e20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 e40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 e60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 e80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ea0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ec0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 f00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 f20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 f40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 f60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 f80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 fa0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 fe0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 hdr.info.forw = 0 hdr.info.back = 0 hdr.info.magic = 0xfbee hdr.count = 0 hdr.usedbytes = 0 hdr.firstused = 4096 hdr.holes = 0 hdr.freemap[0-2] = [base,size] 0:[32,4064] 1:[0,0] 2:[0,0] -- Best regards Arkadiusz Bubała Open-E Poland Sp. z o.o. www.open-e.com From BATV+a52e32bc34450c8b0692+4464+infradead.org+hch@bombadil.srs.infradead.org Fri Nov 13 03:08:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4E78C7F6C for ; Fri, 13 Nov 2015 03:08:47 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id DD2BDAC002 for ; Fri, 13 Nov 2015 01:08:43 -0800 (PST) X-ASG-Debug-ID: 1447405721-04bdf07f0a0f9c0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id nGPingDevKKW3Jzz (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 13 Nov 2015 01:08:41 -0800 (PST) X-Barracuda-Envelope-From: BATV+a52e32bc34450c8b0692+4464+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZxALY-0004KG-L3; Fri, 13 Nov 2015 09:08:40 +0000 Date: Fri, 13 Nov 2015 01:08:40 -0800 From: Christoph Hellwig To: Dave Chinner Cc: Christoph Hellwig , Eric Sandeen , xfs@oss.sgi.com Subject: Re: [PATCH V2] xfs: create helper for bmap finish & trans join in attr code Message-ID: <20151113090840.GA16423@infradead.org> X-ASG-Orig-Subj: Re: [PATCH V2] xfs: create helper for bmap finish & trans join in attr code References: <56441B8E.6070603@redhat.com> <5644BEF8.6070201@sandeen.net> <20151112165801.GA14854@infradead.org> <20151112201231.GS19199@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151112201231.GS19199@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447405721 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24354 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Nov 13, 2015 at 07:12:31AM +1100, Dave Chinner wrote: > On Thu, Nov 12, 2015 at 08:58:01AM -0800, Christoph Hellwig wrote: > > I think the problem here is simply that our interfaces suck. > > xfs_trans_roll really needs to rejoin any inode to the new transaction > > to that was joined to the previous one. Once we've fixed that we can > > get rid of the silly committed arguments and everyone will be happy. > > xfs_trans_roll is not specifically for rolling transactions with > locked inodes in them. We could use it for any object that needs > multiple transactions to modify. e.g. we could roll transactions > across an AGF (using hold+join) so that it remains locked across > multiple allocation/free transactions. xfs_trans_roll already logs the inode core, which requires the inode to be attached to the transaction. While I could see the point of moving this out of the core __xfs_trans_roll into an xfs_trans_roll_inode helper we might as well follow the current interface for now. From darrick.wong@oracle.com Fri Nov 13 03:08:56 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 54B7F7F6C for ; Fri, 13 Nov 2015 03:08:56 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id EE1C1AC001 for ; Fri, 13 Nov 2015 01:08:55 -0800 (PST) X-ASG-Debug-ID: 1447405733-04bdf07f0a0fa00001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id kMlMoCTw57lyxGwI (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 01:08:54 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tAD98Sou028570 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 09:08:28 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tAD98RYO016154 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 09:08:28 GMT Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tAD98RGq021152; Fri, 13 Nov 2015 09:08:27 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 01:08:25 -0800 Date: Fri, 13 Nov 2015 01:08:22 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Cc: david@fromorbit.com, fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls Message-ID: <20151113090822.GB2214@birch.djwong.org> X-ASG-Orig-Subj: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls References: <20151111192628.15056.6451.stgit@birch.djwong.org> <20151112090756.GA25685@infradead.org> <20151112125115.GA28822@infradead.org> <20151112173427.GC2217@birch.djwong.org> <20151112173635.GA9247@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151112173635.GA9247@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447405734 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24354 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Thu, Nov 12, 2015 at 09:36:35AM -0800, Christoph Hellwig wrote: > On Thu, Nov 12, 2015 at 09:34:27AM -0800, Darrick J. Wong wrote: > > Bleargh, _require_*_dedupe forgot to check for ENOTTY output, so all the dedupe > > tests should have _notrun. > > > > Also, generic/806 was calling the wrong _require. > > > > I'll start renumbering tests; Christoph, did you see anything else? > > Looks fine so far otherwise. I think I got all the tests renumbered correctly and fixed all the other bugs. I'd like to send the updated patchpile to Dave tomorrow, but if you have a few spare cycles would you mind giving this a quick test to make sure I fixed everything? https://github.com/djwong/xfstests/tree/for-dave --D > -- > To unsubscribe from this list: send the line "unsubscribe fstests" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html From penguin-kernel@I-love.SAKURA.ne.jp Fri Nov 13 06:20:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 39EFD7F6C for ; Fri, 13 Nov 2015 06:20:09 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 29B758F8033 for ; Fri, 13 Nov 2015 04:20:05 -0800 (PST) X-ASG-Debug-ID: 1447417200-04cb6c0cd21a0c0001-NocioJ Received: from www262.sakura.ne.jp (www262.sakura.ne.jp [202.181.97.72]) by cuda.sgi.com with ESMTP id aqDnHVixO5PzyY5E (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO) for ; Fri, 13 Nov 2015 04:20:02 -0800 (PST) X-Barracuda-Envelope-From: penguin-kernel@I-love.SAKURA.ne.jp X-Barracuda-Apparent-Source-IP: 202.181.97.72 Received: from fsav102.sakura.ne.jp (fsav102.sakura.ne.jp [27.133.134.229]) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id tADCJnfk097933; Fri, 13 Nov 2015 21:19:49 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav102.sakura.ne.jp (F-Secure/fsigk_smtp/522/fsav102.sakura.ne.jp); Fri, 13 Nov 2015 21:19:49 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/522/fsav102.sakura.ne.jp) Received: from AQUA (softbank126094077227.bbtec.net [126.94.77.227]) (authenticated bits=0) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id tADCJnYL097929; Fri, 13 Nov 2015 21:19:49 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) To: david@fromorbit.com Cc: arekm@maven.pl, htejun@gmail.com, cl@linux.com, mhocko@suse.com, linux-mm@kvack.org, xfs@oss.sgi.com Subject: Re: memory reclaim problems on fs usage From: Tetsuo Handa X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage References: <201511111719.44035.arekm@maven.pl> <201511120719.EBF35970.OtSOHOVFJMFQFL@I-love.SAKURA.ne.jp> <201511120706.10739.arekm@maven.pl> <56449E44.7020407@I-love.SAKURA.ne.jp> <20151112200641.GR19199@dastard> In-Reply-To: <20151112200641.GR19199@dastard> Message-Id: <201511132119.BAG65154.QVHStOOFFMOLFJ@I-love.SAKURA.ne.jp> X-Mailer: Winbiff [Version 2.51 PL2] X-Accept-Language: ja,en,zh Date: Fri, 13 Nov 2015 21:19:46 +0900 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Barracuda-Connect: www262.sakura.ne.jp[202.181.97.72] X-Barracuda-Start-Time: 1447417201 X-Barracuda-Encrypted: DHE-RSA-CAMELLIA256-SHA X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-ASG-Whitelist: Body =?UTF-8?B?aHR0cDovL21hcmNcLmluZm8vXD8=?= X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Dave Chinner wrote: > So why have we only scanned *176* pages* during reclaim? On other > OOM reports in this trace it's as low as 12. Either that stat is > completely wrong, or we're not doing sufficient page LRU reclaim > scanning.... > > > [ 9662.234685] MemAlloc-Info: 3 stalling task, 0 dying task, 0 victim task. > > > > vmstat_update() and submit_flushes() remained pending for about 110 seconds. > > If xlog_cil_push_work() were spinning inside GFP_NOFS allocation, it should be > > reported as MemAlloc: traces, but no such lines are recorded. I don't know why > > xlog_cil_push_work() did not call schedule() for so long. > > I'd say it is repeatedly waiting for IO completion on log buffers to > write out the checkpoint. It's making progress, just if it's taking > multiple second per journal IO it will take a long time to write a > checkpoint. All the other blocked tasks in XFS inode reclaim are > either waiting directly on IO completion or waiting for the log to > complete a flush, so this really just looks like an overloaded IO > subsystem to me.... The vmstat statistics can become wrong when vmstat_update() workqueue item cannot be processed due to in-flight workqueue item not calling schedule(). If in-flight workqueue item (in this case xlog_cil_push_work()) called schedule(), the pending vmstat_update() workqueue item will be processed and the vmstat becomes up to dated. Like you expect that xlog_cil_push_work() was waiting for IO completion on log buffers rather than spinning inside GFP_NOFS allocation, what should happened is xlog_cil_push_work() called schedule() and vmstat_update() was processed. But vmstat_update() remained pending for about 110 seconds. That's strange... Arkadiusz is trying http://marc.info/?l=linux-mm&m=144725782107096&w=2 which is for making sure that vmstat_update() workqueue item is processed by changing wait_iff_congested() to call schedule(), and we are waiting for test results. Well, one of dependent patches "vmstat: explicitly schedule per-cpu work on the CPU we need it to run on" might be relevant to this problem. If http://sprunge.us/GYBb and http://sprunge.us/XWUX solve the problem (for both with swap case and without swap case), the vmstat statistics was wrong. From BATV+a52e32bc34450c8b0692+4464+infradead.org+hch@bombadil.srs.infradead.org Fri Nov 13 08:12:39 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C7C9C7F6C for ; Fri, 13 Nov 2015 08:12:39 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 65E09AC002 for ; Fri, 13 Nov 2015 06:12:36 -0800 (PST) X-ASG-Debug-ID: 1447423954-04bdf07f0824860001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id Bdo9bKAMAqOz4OtU (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 13 Nov 2015 06:12:34 -0800 (PST) X-Barracuda-Envelope-From: BATV+a52e32bc34450c8b0692+4464+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZxF5Y-0002GU-9V; Fri, 13 Nov 2015 14:12:28 +0000 Date: Fri, 13 Nov 2015 06:12:28 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Christoph Hellwig , david@fromorbit.com, fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls Message-ID: <20151113141228.GA7218@infradead.org> X-ASG-Orig-Subj: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls References: <20151111192628.15056.6451.stgit@birch.djwong.org> <20151112090756.GA25685@infradead.org> <20151112125115.GA28822@infradead.org> <20151112173427.GC2217@birch.djwong.org> <20151112173635.GA9247@infradead.org> <20151113090822.GB2214@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151113090822.GB2214@birch.djwong.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447423954 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.60 X-Barracuda-Spam-Status: No, SCORE=2.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC7_SA_HREF_FROM_MISMATCH_TEXT_URIx1_HL, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24359 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 2.50 BSF_SC7_SA_HREF_FROM_MISMATCH_TEXT_URIx1_HL Custom Rule HREF_FROM_MISMATCH_TEXT_URIx1_HL On Fri, Nov 13, 2015 at 01:08:22AM -0800, Darrick J. Wong wrote: > I think I got all the tests renumbered correctly and fixed all the other bugs. > I'd like to send the updated patchpile to Dave tomorrow, but if you have a few > spare cycles would you mind giving this a quick test to make sure I fixed > everything? > > https://github.com/djwong/xfstests/tree/for-dave Looks good enough to go in Acked-by: Christoph Hellwig I have for failing tests on NFS currently. Two of them probably are NFS issues (free block count), but and two others fail because NFS doesn't support chattr/lsattr. I will send an incremental check to adda feature test for those. From darrick.wong@oracle.com Fri Nov 13 12:33:14 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A3C8B7F53 for ; Fri, 13 Nov 2015 12:33:14 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4805CAC006 for ; Fri, 13 Nov 2015 10:33:14 -0800 (PST) X-ASG-Debug-ID: 1447439588-04bdf07f093cfc0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id uKBYMWqCohGgMZgL (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 10:33:08 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADIWc2L004368 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 18:32:39 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tADIWZic007588 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 18:32:35 GMT Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tADIWZnn008266; Fri, 13 Nov 2015 18:32:35 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 10:32:35 -0800 Date: Fri, 13 Nov 2015 10:32:34 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls Message-ID: <20151113183234.GD2224@birch.djwong.org> X-ASG-Orig-Subj: Re: [RFCv3.1 00/11] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls References: <20151111192628.15056.6451.stgit@birch.djwong.org> <20151112090756.GA25685@infradead.org> <20151112125115.GA28822@infradead.org> <20151112173427.GC2217@birch.djwong.org> <20151112173635.GA9247@infradead.org> <20151113090822.GB2214@birch.djwong.org> <20151113141228.GA7218@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151113141228.GA7218@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447439588 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24366 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Fri, Nov 13, 2015 at 06:12:28AM -0800, Christoph Hellwig wrote: > On Fri, Nov 13, 2015 at 01:08:22AM -0800, Darrick J. Wong wrote: > > I think I got all the tests renumbered correctly and fixed all the other bugs. > > I'd like to send the updated patchpile to Dave tomorrow, but if you have a few > > spare cycles would you mind giving this a quick test to make sure I fixed > > everything? > > > > https://github.com/djwong/xfstests/tree/for-dave > > Looks good enough to go in > > Acked-by: Christoph Hellwig > > I have for failing tests on NFS currently. Two of them probably are > NFS issues (free block count), but and two others fail because NFS > doesn't support chattr/lsattr. I will send an incremental check to adda > feature test for those. I separated the chattr +i tests into a separate test that doesn't run if lsattr doesn't make sense; will post patches shortly. --D > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From wpowreibn@finnair.com Fri Nov 13 13:31:06 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE,WEIRD_QUOTING autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8F44D7F5A for ; Fri, 13 Nov 2015 13:31:06 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6F0258F8035 for ; Fri, 13 Nov 2015 11:31:03 -0800 (PST) X-ASG-Debug-ID: 1447443055-04cbb0605c416b0001-NocioJ Received: from finnair.com 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X19fX9SqIDwvcD4NCjxwPrG416I8YnI+MS7K1bW9ufPLvrGow/vQxc+iuvOjrM7Sw8eMorXa0rvK selnus2588u+haK74cGqz7XIy7340NDIt9VKo7s8YnI+Mi7U2r+qv87HsNK71tyjrM7Sw8fT0Neo yMu4+Lnzy763osvNss6808Xg0bW1xMi3yM+6r6Osyc/D5tPQxeDTlrGotb3WuNL9o6zS1Lywz+rP uLXEyc+/zrXY1re6zcK3z9+IRKO7PGJyPjMutMu/zrPM0rK/ydLUsLLFxcbz0rXE2tG1o6y7ttOt wLS159fJ0a+8sMnq1YjFxcbao7s8YnI+NC7I57bUtMu/zrPM09DIzrrO0snOyqOsu7bTrbKmtPLr iruwz/LO0oKD18nRr6GjPGJyPjwvcD48L2JvZHk+PC9odG1sPg0K ------=_000_NextPart083471748037_=------ From sandeen@sandeen.net Fri Nov 13 15:29:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 099AB7F5A for ; Fri, 13 Nov 2015 15:29:47 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id D53AB304032 for ; Fri, 13 Nov 2015 13:29:43 -0800 (PST) X-ASG-Debug-ID: 1447450180-04bdf07f0a46300001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id ZCfJvplMmd4XGH6S for ; Fri, 13 Nov 2015 13:29:40 -0800 (PST) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 1547061451CC for ; Fri, 13 Nov 2015 15:29:40 -0600 (CST) Subject: Re: [PATCH V2] xfs: create helper for bmap finish & trans join in attr code To: xfs@oss.sgi.com X-ASG-Orig-Subj: Re: [PATCH V2] xfs: create helper for bmap finish & trans join in attr code References: <56441B8E.6070603@redhat.com> <5644BEF8.6070201@sandeen.net> <20151112165801.GA14854@infradead.org> <20151112201231.GS19199@dastard> <20151113090840.GA16423@infradead.org> From: Eric Sandeen Message-ID: <56465643.5070504@sandeen.net> Date: Fri, 13 Nov 2015 15:29:39 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151113090840.GA16423@infradead.org> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1447450180 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24371 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 11/13/15 3:08 AM, Christoph Hellwig wrote: > On Fri, Nov 13, 2015 at 07:12:31AM +1100, Dave Chinner wrote: >> On Thu, Nov 12, 2015 at 08:58:01AM -0800, Christoph Hellwig wrote: >>> I think the problem here is simply that our interfaces suck. >>> xfs_trans_roll really needs to rejoin any inode to the new transaction >>> to that was joined to the previous one. Once we've fixed that we can >>> get rid of the silly committed arguments and everyone will be happy. >> >> xfs_trans_roll is not specifically for rolling transactions with >> locked inodes in them. We could use it for any object that needs >> multiple transactions to modify. e.g. we could roll transactions >> across an AGF (using hold+join) so that it remains locked across >> multiple allocation/free transactions. > > xfs_trans_roll already logs the inode core, which requires the > inode to be attached to the transaction. While I could see the > point of moving this out of the core __xfs_trans_roll into an > xfs_trans_roll_inode helper we might as well follow the current > interface for now. Trying to follow you guys ;) Something like this? diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index dbae649..d23bce8 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -91,32 +91,32 @@ xfs_zero_extent( * last due to locking considerations. We never free any extents in * the first transaction. * - * Return 1 if the given transaction was committed and a new one - * started, and 0 otherwise in the committed parameter. + * If an inode *ip is provided, rejoin it to the transaction if + * the transaction was committed. */ int /* error */ xfs_bmap_finish( struct xfs_trans **tp, /* transaction pointer addr */ struct xfs_bmap_free *flist, /* i/o: list extents to free */ - int *committed)/* xact committed or not */ + xfs_inode_t *ip) { struct xfs_efd_log_item *efd; /* extent free data */ struct xfs_efi_log_item *efi; /* extent free intention */ int error; /* error return value */ + int committed;/* xact committed or not */ struct xfs_bmap_free_item *free; /* free extent item */ struct xfs_bmap_free_item *next; /* next item on free list */ ASSERT((*tp)->t_flags & XFS_TRANS_PERM_LOG_RES); - if (flist->xbf_count == 0) { - *committed = 0; + if (flist->xbf_count == 0) return 0; - } + efi = xfs_trans_get_efi(*tp, flist->xbf_count); for (free = flist->xbf_first; free; free = free->xbfi_next) xfs_trans_log_efi_extent(*tp, efi, free->xbfi_startblock, free->xbfi_blockcount); - error = __xfs_trans_roll(tp, NULL, committed); + error = __xfs_trans_roll(tp, ip, &committed); if (error) { /* * If the transaction was committed, drop the EFD reference @@ -128,16 +128,13 @@ xfs_bmap_finish( * transaction so we should return committed=1 even though we're * returning an error. */ - if (*committed) { + if (committed) { xfs_efi_release(efi); xfs_force_shutdown((*tp)->t_mountp, (error == -EFSCORRUPTED) ? SHUTDOWN_CORRUPT_INCORE : SHUTDOWN_META_IO_ERROR); - } else { - *committed = 1; } - return error; } From darrick.wong@oracle.com Fri Nov 13 15:37:14 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 40B697F5A for ; Fri, 13 Nov 2015 15:37:14 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 06C408F8035 for ; Fri, 13 Nov 2015 13:37:13 -0800 (PST) X-ASG-Debug-ID: 1447450631-04bdf07f09469e0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id 9meTbw9oPuVxgIZP (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:37:11 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLak7Y032147 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:36:47 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tADLakB4023152 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:36:46 GMT Received: from abhmp0008.oracle.com (abhmp0008.oracle.com [141.146.116.14]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tADLajE1028290; Fri, 13 Nov 2015 21:36:45 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:36:45 -0800 Subject: [RFCv3.2 00/12] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls From: "Darrick J. Wong" X-ASG-Orig-Subj: [RFCv3.2 00/12] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:36:43 -0800 Message-ID: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447450631 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24371 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Hi all, This is part of the third revision of an RFC for adding to XFS support for tracking reverse-mappings of physical blocks to file and metadata; and support for mapping multiple file logical blocks to the same physical block, more commonly known as reflinking. This patchset aims to make xfstests perform more rigorous testing of the NFS/CIFS/btrfs/XFS file clone, reflink, and dedupe ioctls. There are now tests of the basic functionality of the three ioctls; tests to ensure that the filesystem exhibits the expected copy on write semantics; tests to try to suss out race conditions in the new write paths; tests to ensure that the ioctls peform basic disk accounting correctly; tests of the interaction between reflink and the various fallocate verbs (allocate, punch, collapse, insert zeroes); and some attempts to test the upper limits of reflinking and ENOSPC behavior. Since the last posting, each test tries to reflink (or dedupe) on the test or scratch FS to decide if they're going to run, instead of guessing based on FS type. Per Dave's suggestion, I also converted the basic functionality tests to use fixed sizes so that I can use md5sum in the golden output to check that the file contents match exactly. Since "RFCv3.1", I've made the following changes: * Renumbered the tests to the lowest numbers possible, per Dave's request. * Fixed the reflink and dedupe _require tests so that they can run on things like NFS which support reflink but not dedupe. * Added checks for lsattr/chattr support so that we don't produce bogus failures on NFS, and put the *attr tests in separate test files. * Appended a couple of tools I wrote to handle finding minimal test numbers and moving tests around. If you're going to start using this mess, you probably ought to just pull from my github trees for kernel[1], xfsprogs[2], xfstests[3], and xfs-docs[4]. They should just work with the btrfs that's in 4.3... and somewhat buggily with the 4.3 XFS patched with [1]. Comments and questions are, as always, welcome. --D [1] https://github.com/djwong/linux/tree/for-dave [2] https://github.com/djwong/xfsprogs/tree/for-dave [3] https://github.com/djwong/xfstests/tree/for-dave [4] https://github.com/djwong/xfs-documentation/tree/for-dave From darrick.wong@oracle.com Fri Nov 13 15:37:26 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3801F7F5A for ; Fri, 13 Nov 2015 15:37:26 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id F22F7304043 for ; Fri, 13 Nov 2015 13:37:25 -0800 (PST) X-ASG-Debug-ID: 1447450643-04bdf07f0a46a10001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id ivAoR1VJ1EAy7hFe (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:37:23 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLatTl018005 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:36:55 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tADLasK5009200 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:36:55 GMT Received: from abhmp0003.oracle.com (abhmp0003.oracle.com [141.146.116.9]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tADLapvD007176; Fri, 13 Nov 2015 21:36:51 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:36:51 -0800 Subject: [PATCH 01/12] test-scripts: test migration scripts From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 01/12] test-scripts: test migration scripts To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:36:50 -0800 Message-ID: <20151113213650.31124.16817.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447450643 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24371 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Add two scripts: "nextid" finds the next available test ID number in a group, and "mvtest" relocates a test, fixes the golden output, and moves the group entry for that test. Signed-off-by: Darrick J. Wong --- mvtest | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ nextid | 35 +++++++++++++++++++++++++++++++++++ 2 files changed, 93 insertions(+) create mode 100755 mvtest create mode 100755 nextid diff --git a/mvtest b/mvtest new file mode 100755 index 0000000..b5406d1 --- /dev/null +++ b/mvtest @@ -0,0 +1,58 @@ +#!/bin/sh + +# Renumber a test + +if [ -z "$1" ] || [ "$1" = "--help" ]; then + echo "Usage: $0 path_to_test new_path_to_test" + exit 1 +fi + +src="$1" +dest="$2" + +die() { + echo "$@" + exit 1 +} + +nsort() { + sort -g < "$1" > "$2" +} + +append() { + out="$1" + shift + echo "$@" >> "${out}" +} + +test "${src}" != "${dest}" || die "Test \"${src}\" is the same as dest." +test -e "tests/${src}" || die "Test \"${src}\" does not exist." +test ! -e "tests/${dest}" || die "Test \"${src}\" already exists." + +sid="$(basename "${src}")" +did="$(basename "${dest}")" + +sgroup="$(basename "$(dirname "tests/${src}")")" +dgroup="$(basename "$(dirname "tests/${dest}")")" + +sgroupfile="tests/${sgroup}/group" +dgroupfile="tests/${sgroup}/group" + +$DBG git mv "tests/${src}" "tests/${dest}" +$DBG git mv "tests/${src}.out" "tests/${dest}.out" +$DBG sed -e "s/^# FS QA Test No. ${sid}$/# FS QA Test No. ${did}/g" -i "tests/${dest}" +$DBG sed -e "s/^QA output created by ${sid}$/QA output created by ${did}/g" -i "tests/${dest}.out" +$DBG sed -e "s/test-${sid}/test-${did}/g" -i "tests/${dest}.out" + +grpline="$(grep "^${sid} " "${sgroupfile}")" +newgrpline="$(echo "${grpline}" | sed -e "s/^${sid} /${did} /g")" + +$DBG sed -e "/^${sid}.*$/d" -i "${sgroupfile}" +$DBG cp "${dgroupfile}" "${dgroupfile}.new" +$DBG append "${dgroupfile}.new" "${newgrpline}" +$DBG nsort "${dgroupfile}.new" "${dgroupfile}" +$DBG rm "${dgroupfile}.new" + +echo "Moved \"${src}\" to \"${dest}\"." + +exit 0 diff --git a/nextid b/nextid new file mode 100755 index 0000000..285b549 --- /dev/null +++ b/nextid @@ -0,0 +1,35 @@ +#!/bin/sh + +# Given a group name, find the next available test number. + +if [ -z "$1" ] || [ "$1" = "--help" ]; then + echo "Usage: $0 groupname[/start_looking_at_this_number]" + exit 1 +fi + +die() { + echo "$@" + exit 1 +} + +if [ "$(basename "$1")" != "$1" ]; then + group="$(dirname "$1")" + id="$(basename "$1")" +else + group="$1" + id=1 +fi +test -e "tests/${group}/group" || die "Unknown group \"${group}\"." + +while test "${id}" -lt 1000; do + name="$(printf "%.03d" "${id}")" + if [ ! -e "tests/${group}/${name}" ]; then + echo "${group}/${name}" + exit 0 + fi + id=$((id + 1)) +done + +echo "No free IDs less than ${id} in group \"${group}\"." + +exit 1 From darrick.wong@oracle.com Fri Nov 13 15:37:27 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8A7ED7F5A for ; Fri, 13 Nov 2015 15:37:27 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7D03A8F8049 for ; Fri, 13 Nov 2015 13:37:27 -0800 (PST) X-ASG-Debug-ID: 1447450642-04cb6c0cd342880001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id ZsNUzJTrJVT9XwO1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:37:23 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLawXd032281 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:36:58 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tADLaw3H023642 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:36:58 GMT Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tADLawKm007246; Fri, 13 Nov 2015 21:36:58 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:36:57 -0800 Subject: [PATCH 02/12] btrfs: move btrfs reflink tests to generic From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 02/12] btrfs: move btrfs reflink tests to generic To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:36:56 -0800 Message-ID: <20151113213656.31124.99827.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447450643 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT, UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24370 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Move the cp --reflink tests from btrfs/ to generic/ since xfs now supports that ioctl. Signed-off-by: Darrick J. Wong --- tests/btrfs/026 | 92 ----------------------------------------- tests/btrfs/026.out | 16 ------- tests/btrfs/027 | 109 ------------------------------------------------- tests/btrfs/027.out | 25 ----------- tests/btrfs/028 | 83 ------------------------------------- tests/btrfs/028.out | 7 --- tests/btrfs/group | 3 - tests/generic/110 | 92 +++++++++++++++++++++++++++++++++++++++++ tests/generic/110.out | 16 +++++++ tests/generic/111 | 109 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/111.out | 25 +++++++++++ tests/generic/115 | 83 +++++++++++++++++++++++++++++++++++++ tests/generic/115.out | 7 +++ tests/generic/group | 3 + 14 files changed, 335 insertions(+), 335 deletions(-) delete mode 100755 tests/btrfs/026 delete mode 100644 tests/btrfs/026.out delete mode 100755 tests/btrfs/027 delete mode 100644 tests/btrfs/027.out delete mode 100755 tests/btrfs/028 delete mode 100644 tests/btrfs/028.out create mode 100755 tests/generic/110 create mode 100644 tests/generic/110.out create mode 100755 tests/generic/111 create mode 100644 tests/generic/111.out create mode 100755 tests/generic/115 create mode 100644 tests/generic/115.out diff --git a/tests/btrfs/026 b/tests/btrfs/026 deleted file mode 100755 index 7559ca2..0000000 --- a/tests/btrfs/026 +++ /dev/null @@ -1,92 +0,0 @@ -#! /bin/bash -# FS QA Test No. 026 -# -# Tests file clone functionality of btrfs ("reflinks"): -# - Reflink a file -# - Reflink the reflinked file -# - Modify the original file -# - Modify the reflinked file -# -#----------------------------------------------------------------------- -# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it would be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write the Free Software Foundation, -# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -#----------------------------------------------------------------------- -# - -seq=`basename $0` -seqres=$RESULT_DIR/$seq -echo "QA output created by $seq" - -here=`pwd` -tmp=/tmp/$$ -status=1 # failure is the default! -trap "_cleanup; exit \$status" 0 1 2 3 15 - -_cleanup() -{ - cd / - rm -f $tmp.* -} - -# get standard environment, filters and checks -. common/rc -. common/filter - -# real QA test starts here -_supported_fs btrfs -_supported_os Linux - -_require_xfs_io_command "fiemap" -_require_cp_reflink -_require_test - -TESTDIR1=$TEST_DIR/test-$seq -rm -rf $TESTDIR1 -mkdir $TESTDIR1 - -_checksum_files() { - for F in original copy1 copy2 - do - md5sum $TESTDIR1/$F | _filter_test_dir - done -} - -rm -f $seqres.full - -echo "Create the original file and reflink to copy1, copy2" -$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original \ - >> $seqres.full 2>&1 -cp --reflink $TESTDIR1/original $TESTDIR1/copy1 -cp --reflink $TESTDIR1/copy1 $TESTDIR1/copy2 -_verify_reflink $TESTDIR1/original $TESTDIR1/copy1 -_verify_reflink $TESTDIR1/original $TESTDIR1/copy2 -echo "Original md5sums:" -_checksum_files - -echo "Overwrite original file with new data" -$XFS_IO_PROG -c 'pwrite -S 0x62 0 9000' $TESTDIR1/original \ - >> $seqres.full 2>&1 -echo "md5sums after overwriting original:" -_checksum_files - -echo "Overwrite copy1 with different new data" -$XFS_IO_PROG -c 'pwrite -S 0x63 0 9000' $TESTDIR1/copy1 \ - >> $seqres.full 2>&1 -echo "md5sums after overwriting copy1:" -_checksum_files - -# success, all done -status=0 -exit diff --git a/tests/btrfs/026.out b/tests/btrfs/026.out deleted file mode 100644 index 3b90ff0..0000000 --- a/tests/btrfs/026.out +++ /dev/null @@ -1,16 +0,0 @@ -QA output created by 026 -Create the original file and reflink to copy1, copy2 -Original md5sums: -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-026/original -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-026/copy1 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-026/copy2 -Overwrite original file with new data -md5sums after overwriting original: -4a847a25439532bf48b68c9e9536ed5b TEST_DIR/test-026/original -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-026/copy1 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-026/copy2 -Overwrite copy1 with different new data -md5sums after overwriting copy1: -4a847a25439532bf48b68c9e9536ed5b TEST_DIR/test-026/original -e271cd47d9f62ebc96cb4e67ae4d16db TEST_DIR/test-026/copy1 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-026/copy2 diff --git a/tests/btrfs/027 b/tests/btrfs/027 deleted file mode 100755 index d2b812b..0000000 --- a/tests/btrfs/027 +++ /dev/null @@ -1,109 +0,0 @@ -#! /bin/bash -# FS QA Test No. 027 -# -# Tests file clone functionality of btrfs ("reflinks") on directory -# trees. -# - Create directory and subdirectory, each having one file -# - Create 2 recursive reflinked copies of the tree -# - Modify the original files -# - Modify one of the copies -# -#----------------------------------------------------------------------- -# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it would be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write the Free Software Foundation, -# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -#----------------------------------------------------------------------- - -seq=`basename $0` -seqres=$RESULT_DIR/$seq -echo "QA output created by $seq" - -here=`pwd` -tmp=/tmp/$$ -status=1 # failure is the default! -trap "_cleanup; exit \$status" 0 1 2 3 15 - -_cleanup() -{ - cd / - rm -f $tmp.* -} - -# get standard environment, filters and checks -. common/rc -. common/filter - -# real QA test starts here -_supported_fs btrfs -_supported_os Linux - -_require_xfs_io_command "fiemap" -_require_cp_reflink -_require_test - -TESTDIR1=$TEST_DIR/test-$seq -rm -rf $TESTDIR1 -mkdir $TESTDIR1 - -_checksum_files() { - for F in original/file1 original/subdir/file2 \ - copy1/file1 copy1/subdir/file2 \ - copy2/file1 copy2/subdir/file2 - do - md5sum $TESTDIR1/$F | _filter_test_dir - done -} - -rm -f $seqres.full - -mkdir $TESTDIR1/original -mkdir $TESTDIR1/original/subdir - -echo "Create the original files and reflink dirs" -$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original/file1 \ - >> $seqres.full 2>&1 -$XFS_IO_PROG -f -c 'pwrite -S 0x62 0 11000' \ - $TESTDIR1/original/subdir/file2 >> $seqres.full 2>&1 -cp --recursive --reflink $TESTDIR1/original $TESTDIR1/copy1 -cp --recursive --reflink $TESTDIR1/copy1 $TESTDIR1/copy2 - -_verify_reflink $TESTDIR1/original/file1 $TESTDIR1/copy1/file1 -_verify_reflink $TESTDIR1/original/subdir/file2 \ - $TESTDIR1/copy1/subdir/file2 -_verify_reflink $TESTDIR1/original/file1 $TESTDIR1/copy2/file1 -_verify_reflink $TESTDIR1/original/subdir/file2 \ - $TESTDIR1/copy2/subdir/file2 - -echo "Original md5sums:" -_checksum_files - -echo "Overwrite original/file1 and original/subdir/file2 with new data" -$XFS_IO_PROG -c 'pwrite -S 0x63 0 13000' $TESTDIR1/original/file1 \ - >> $seqres.full 2>&1 -$XFS_IO_PROG -c 'pwrite -S 0x64 5000 1000' \ - $TESTDIR1/original/subdir/file2 >> $seqres.full 2>&1 -echo "md5sums now:" -_checksum_files - -echo "Overwrite copy1/file1 and copy1/subdir/file2 with new data" -$XFS_IO_PROG -c 'pwrite -S 0x65 0 9000' $TESTDIR1/copy1/file1 \ - >> $seqres.full 2>&1 -$XFS_IO_PROG -c 'pwrite -S 0x66 5000 25000' \ - $TESTDIR1/copy1/subdir/file2 >> $seqres.full 2>&1 -echo "md5sums now:" -_checksum_files - -# success, all done -status=0 -exit diff --git a/tests/btrfs/027.out b/tests/btrfs/027.out deleted file mode 100644 index 7b7e3bb..0000000 --- a/tests/btrfs/027.out +++ /dev/null @@ -1,25 +0,0 @@ -QA output created by 027 -Create the original files and reflink dirs -Original md5sums: -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/original/file1 -ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/original/subdir/file2 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy1/file1 -ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy1/subdir/file2 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy2/file1 -ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy2/subdir/file2 -Overwrite original/file1 and original/subdir/file2 with new data -md5sums now: -260f6785c0537fd12582dcae28a3c1a9 TEST_DIR/test-027/original/file1 -b8d91fb600f6f2191f2ba66665374860 TEST_DIR/test-027/original/subdir/file2 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy1/file1 -ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy1/subdir/file2 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy2/file1 -ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy2/subdir/file2 -Overwrite copy1/file1 and copy1/subdir/file2 with new data -md5sums now: -260f6785c0537fd12582dcae28a3c1a9 TEST_DIR/test-027/original/file1 -b8d91fb600f6f2191f2ba66665374860 TEST_DIR/test-027/original/subdir/file2 -b20229a003e3985c4b0e6806abcd6642 TEST_DIR/test-027/copy1/file1 -b815b24069db14e0a3a07169fd563e93 TEST_DIR/test-027/copy1/subdir/file2 -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy2/file1 -ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy2/subdir/file2 diff --git a/tests/btrfs/028 b/tests/btrfs/028 deleted file mode 100755 index 7193337..0000000 --- a/tests/btrfs/028 +++ /dev/null @@ -1,83 +0,0 @@ -#! /bin/bash -# FS QA Test No. 028 -# -# Moving and deleting cloned ("reflinked") files on btrfs: -# - Create a file and a reflink -# - Move both to a directory -# - Delete the original (moved) file, check that the copy still exists. -# -#----------------------------------------------------------------------- -# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it would be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write the Free Software Foundation, -# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -#----------------------------------------------------------------------- - -seq=`basename $0` -seqres=$RESULT_DIR/$seq -echo "QA output created by $seq" - -here=`pwd` -tmp=/tmp/$$ -status=1 # failure is the default! -trap "_cleanup; exit \$status" 0 1 2 3 15 - -_cleanup() -{ - cd / - rm -f $tmp.* -} - -# get standard environment, filters and checks -. ./common/rc -. ./common/filter - -# real QA test starts here -_supported_fs btrfs -_supported_os Linux - -_require_xfs_io_command "fiemap" -_require_cp_reflink -_require_test - -rm -f $seqres.full - -TESTDIR1=$TEST_DIR/test-$seq -rm -rf $TESTDIR1 -mkdir $TESTDIR1 - -echo "Create the original files and reflink dirs" -$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original \ - >> $seqres.full -cp --reflink $TESTDIR1/original $TESTDIR1/copy - -_verify_reflink $TESTDIR1/original $TESTDIR1/copy - -echo "Move orig & reflink copy to subdir and md5sum:" -mkdir $TESTDIR1/subdir -mv $TESTDIR1/original $TESTDIR1/subdir/original_moved -mv $TESTDIR1/copy $TESTDIR1/subdir/copy_moved -_verify_reflink $TESTDIR1/subdir/original_moved \ - $TESTDIR1/subdir/copy_moved - -md5sum $TESTDIR1/subdir/original_moved | _filter_test_dir -md5sum $TESTDIR1/subdir/copy_moved | _filter_test_dir - -echo "remove orig from subdir and md5sum reflink copy:" -rm $TESTDIR1/subdir/original_moved -md5sum $TESTDIR1/subdir/copy_moved | _filter_test_dir -rm -rf $TESTDIR1/subdir - -# success, all done -status=0 -exit diff --git a/tests/btrfs/028.out b/tests/btrfs/028.out deleted file mode 100644 index f683fce..0000000 --- a/tests/btrfs/028.out +++ /dev/null @@ -1,7 +0,0 @@ -QA output created by 028 -Create the original files and reflink dirs -Move orig & reflink copy to subdir and md5sum: -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-028/subdir/original_moved -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-028/subdir/copy_moved -remove orig from subdir and md5sum reflink copy: -42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-028/subdir/copy_moved diff --git a/tests/btrfs/group b/tests/btrfs/group index 7cf7dd7..c5d529f 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -28,9 +28,6 @@ 023 auto 024 auto quick compress 025 auto quick send clone -026 auto quick clone -027 auto quick clone -028 auto quick clone 029 auto quick clone 030 auto quick send 031 auto quick subvol clone diff --git a/tests/generic/110 b/tests/generic/110 new file mode 100755 index 0000000..ec74357 --- /dev/null +++ b/tests/generic/110 @@ -0,0 +1,92 @@ +#! /bin/bash +# FS QA Test No. 110 +# +# Tests file clone functionality of btrfs ("reflinks"): +# - Reflink a file +# - Reflink the reflinked file +# - Modify the original file +# - Modify the reflinked file +# +#----------------------------------------------------------------------- +# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. common/rc +. common/filter + +# real QA test starts here +_supported_fs btrfs +_supported_os Linux + +_require_xfs_io_command "fiemap" +_require_cp_reflink +_require_test + +TESTDIR1=$TEST_DIR/test-$seq +rm -rf $TESTDIR1 +mkdir $TESTDIR1 + +_checksum_files() { + for F in original copy1 copy2 + do + md5sum $TESTDIR1/$F | _filter_test_dir + done +} + +rm -f $seqres.full + +echo "Create the original file and reflink to copy1, copy2" +$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original \ + >> $seqres.full 2>&1 +cp --reflink $TESTDIR1/original $TESTDIR1/copy1 +cp --reflink $TESTDIR1/copy1 $TESTDIR1/copy2 +_verify_reflink $TESTDIR1/original $TESTDIR1/copy1 +_verify_reflink $TESTDIR1/original $TESTDIR1/copy2 +echo "Original md5sums:" +_checksum_files + +echo "Overwrite original file with new data" +$XFS_IO_PROG -c 'pwrite -S 0x62 0 9000' $TESTDIR1/original \ + >> $seqres.full 2>&1 +echo "md5sums after overwriting original:" +_checksum_files + +echo "Overwrite copy1 with different new data" +$XFS_IO_PROG -c 'pwrite -S 0x63 0 9000' $TESTDIR1/copy1 \ + >> $seqres.full 2>&1 +echo "md5sums after overwriting copy1:" +_checksum_files + +# success, all done +status=0 +exit diff --git a/tests/generic/110.out b/tests/generic/110.out new file mode 100644 index 0000000..e58b9d8 --- /dev/null +++ b/tests/generic/110.out @@ -0,0 +1,16 @@ +QA output created by 110 +Create the original file and reflink to copy1, copy2 +Original md5sums: +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-110/original +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-110/copy1 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-110/copy2 +Overwrite original file with new data +md5sums after overwriting original: +4a847a25439532bf48b68c9e9536ed5b TEST_DIR/test-110/original +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-110/copy1 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-110/copy2 +Overwrite copy1 with different new data +md5sums after overwriting copy1: +4a847a25439532bf48b68c9e9536ed5b TEST_DIR/test-110/original +e271cd47d9f62ebc96cb4e67ae4d16db TEST_DIR/test-110/copy1 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-110/copy2 diff --git a/tests/generic/111 b/tests/generic/111 new file mode 100755 index 0000000..9da3f40 --- /dev/null +++ b/tests/generic/111 @@ -0,0 +1,109 @@ +#! /bin/bash +# FS QA Test No. 111 +# +# Tests file clone functionality of btrfs ("reflinks") on directory +# trees. +# - Create directory and subdirectory, each having one file +# - Create 2 recursive reflinked copies of the tree +# - Modify the original files +# - Modify one of the copies +# +#----------------------------------------------------------------------- +# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. common/rc +. common/filter + +# real QA test starts here +_supported_fs btrfs +_supported_os Linux + +_require_xfs_io_command "fiemap" +_require_cp_reflink +_require_test + +TESTDIR1=$TEST_DIR/test-$seq +rm -rf $TESTDIR1 +mkdir $TESTDIR1 + +_checksum_files() { + for F in original/file1 original/subdir/file2 \ + copy1/file1 copy1/subdir/file2 \ + copy2/file1 copy2/subdir/file2 + do + md5sum $TESTDIR1/$F | _filter_test_dir + done +} + +rm -f $seqres.full + +mkdir $TESTDIR1/original +mkdir $TESTDIR1/original/subdir + +echo "Create the original files and reflink dirs" +$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original/file1 \ + >> $seqres.full 2>&1 +$XFS_IO_PROG -f -c 'pwrite -S 0x62 0 11000' \ + $TESTDIR1/original/subdir/file2 >> $seqres.full 2>&1 +cp --recursive --reflink $TESTDIR1/original $TESTDIR1/copy1 +cp --recursive --reflink $TESTDIR1/copy1 $TESTDIR1/copy2 + +_verify_reflink $TESTDIR1/original/file1 $TESTDIR1/copy1/file1 +_verify_reflink $TESTDIR1/original/subdir/file2 \ + $TESTDIR1/copy1/subdir/file2 +_verify_reflink $TESTDIR1/original/file1 $TESTDIR1/copy2/file1 +_verify_reflink $TESTDIR1/original/subdir/file2 \ + $TESTDIR1/copy2/subdir/file2 + +echo "Original md5sums:" +_checksum_files + +echo "Overwrite original/file1 and original/subdir/file2 with new data" +$XFS_IO_PROG -c 'pwrite -S 0x63 0 13000' $TESTDIR1/original/file1 \ + >> $seqres.full 2>&1 +$XFS_IO_PROG -c 'pwrite -S 0x64 5000 1000' \ + $TESTDIR1/original/subdir/file2 >> $seqres.full 2>&1 +echo "md5sums now:" +_checksum_files + +echo "Overwrite copy1/file1 and copy1/subdir/file2 with new data" +$XFS_IO_PROG -c 'pwrite -S 0x65 0 9000' $TESTDIR1/copy1/file1 \ + >> $seqres.full 2>&1 +$XFS_IO_PROG -c 'pwrite -S 0x66 5000 25000' \ + $TESTDIR1/copy1/subdir/file2 >> $seqres.full 2>&1 +echo "md5sums now:" +_checksum_files + +# success, all done +status=0 +exit diff --git a/tests/generic/111.out b/tests/generic/111.out new file mode 100644 index 0000000..e410802 --- /dev/null +++ b/tests/generic/111.out @@ -0,0 +1,25 @@ +QA output created by 111 +Create the original files and reflink dirs +Original md5sums: +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-111/original/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-111/original/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-111/copy1/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-111/copy1/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-111/copy2/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-111/copy2/subdir/file2 +Overwrite original/file1 and original/subdir/file2 with new data +md5sums now: +260f6785c0537fd12582dcae28a3c1a9 TEST_DIR/test-111/original/file1 +b8d91fb600f6f2191f2ba66665374860 TEST_DIR/test-111/original/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-111/copy1/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-111/copy1/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-111/copy2/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-111/copy2/subdir/file2 +Overwrite copy1/file1 and copy1/subdir/file2 with new data +md5sums now: +260f6785c0537fd12582dcae28a3c1a9 TEST_DIR/test-111/original/file1 +b8d91fb600f6f2191f2ba66665374860 TEST_DIR/test-111/original/subdir/file2 +b20229a003e3985c4b0e6806abcd6642 TEST_DIR/test-111/copy1/file1 +b815b24069db14e0a3a07169fd563e93 TEST_DIR/test-111/copy1/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-111/copy2/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-111/copy2/subdir/file2 diff --git a/tests/generic/115 b/tests/generic/115 new file mode 100755 index 0000000..35f0417 --- /dev/null +++ b/tests/generic/115 @@ -0,0 +1,83 @@ +#! /bin/bash +# FS QA Test No. 115 +# +# Moving and deleting cloned ("reflinked") files on btrfs: +# - Create a file and a reflink +# - Move both to a directory +# - Delete the original (moved) file, check that the copy still exists. +# +#----------------------------------------------------------------------- +# Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here +_supported_fs btrfs +_supported_os Linux + +_require_xfs_io_command "fiemap" +_require_cp_reflink +_require_test + +rm -f $seqres.full + +TESTDIR1=$TEST_DIR/test-$seq +rm -rf $TESTDIR1 +mkdir $TESTDIR1 + +echo "Create the original files and reflink dirs" +$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original \ + >> $seqres.full +cp --reflink $TESTDIR1/original $TESTDIR1/copy + +_verify_reflink $TESTDIR1/original $TESTDIR1/copy + +echo "Move orig & reflink copy to subdir and md5sum:" +mkdir $TESTDIR1/subdir +mv $TESTDIR1/original $TESTDIR1/subdir/original_moved +mv $TESTDIR1/copy $TESTDIR1/subdir/copy_moved +_verify_reflink $TESTDIR1/subdir/original_moved \ + $TESTDIR1/subdir/copy_moved + +md5sum $TESTDIR1/subdir/original_moved | _filter_test_dir +md5sum $TESTDIR1/subdir/copy_moved | _filter_test_dir + +echo "remove orig from subdir and md5sum reflink copy:" +rm $TESTDIR1/subdir/original_moved +md5sum $TESTDIR1/subdir/copy_moved | _filter_test_dir +rm -rf $TESTDIR1/subdir + +# success, all done +status=0 +exit diff --git a/tests/generic/115.out b/tests/generic/115.out new file mode 100644 index 0000000..a532214 --- /dev/null +++ b/tests/generic/115.out @@ -0,0 +1,7 @@ +QA output created by 115 +Create the original files and reflink dirs +Move orig & reflink copy to subdir and md5sum: +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-115/subdir/original_moved +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-115/subdir/copy_moved +remove orig from subdir and md5sum reflink copy: +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-115/subdir/copy_moved diff --git a/tests/generic/group b/tests/generic/group index 1dd4269..aa31c8b 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -112,9 +112,12 @@ 107 auto quick metadata 108 auto quick rw 109 auto metadata dir +110 auto quick clone +111 auto quick clone 112 rw aio auto quick 113 rw aio auto quick 114 rw aio auto quick +115 auto quick clone 117 attr auto quick 120 other auto quick 123 perms auto quick From darrick.wong@oracle.com Fri Nov 13 15:37:37 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 44A8D7F5A for ; Fri, 13 Nov 2015 15:37:37 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 35EC5304032 for ; Fri, 13 Nov 2015 13:37:37 -0800 (PST) X-ASG-Debug-ID: 1447450654-04cb6c0cd4428b0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id 2vIBF4vxJdRltIvg (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:37:34 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLb5Vc018429 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:37:05 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tADLb5PR009868 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:37:05 GMT Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tADLb4js028445; Fri, 13 Nov 2015 21:37:04 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:37:04 -0800 Subject: [PATCH 03/12] reflink: add test support routines to a separate file From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 03/12] reflink: add test support routines to a separate file To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:37:03 -0800 Message-ID: <20151113213703.31124.57109.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447450654 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24370 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Put all the reflink/dedupe-related test support routines in a separate file, then modify the existing reflink tests to use them. Signed-off-by: Darrick J. Wong --- common/rc | 51 +++++++++------ common/reflink | 185 +++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/btrfs/029 | 1 tests/btrfs/031 | 1 tests/btrfs/108 | 1 tests/btrfs/109 | 1 tests/generic/110 | 3 + tests/generic/111 | 3 + tests/generic/115 | 3 + 9 files changed, 225 insertions(+), 24 deletions(-) create mode 100644 common/reflink diff --git a/common/rc b/common/rc index adf1edf..4c2f42c 100644 --- a/common/rc +++ b/common/rc @@ -82,6 +82,27 @@ _md5_checksum() md5sum $1 | cut -d ' ' -f1 } +# Write a byte into a range of a file +_pwrite_byte() { + pattern="$1" + offset="$2" + len="$3" + file="$4" + xfs_io_args="$5" + + "$XFS_IO_PROG" $xfs_io_args -f -c "pwrite -S $pattern $offset $len" "$file" +} + +# mmap-write a byte into a range of a file +_mwrite_byte() { + pattern="$1" + offset="$2" + len="$3" + mmap_len="$4" + file="$5" + + "$XFS_IO_PROG" -f -c "mmap -rw 0 $mmap_len" -c "mwrite -S $pattern $offset $len" "$file" +} # ls -l w/ selinux sometimes puts a dot at the end: # -rwxrw-r--. id1 id2 file1 @@ -2569,12 +2590,6 @@ _require_ugid_map() fi } -_require_cp_reflink() -{ - cp --help | grep -q reflink || \ - _notrun "This test requires a cp with --reflink support." -} - _require_fssum() { FSSUM_PROG=$here/src/fssum @@ -2588,21 +2603,6 @@ _require_cloner() _notrun "cloner binary not present at $CLONER_PROG" } -# Given 2 files, verify that they have the same mapping but different -# inodes - i.e. an undisturbed reflink -# Silent if so, make noise if not -_verify_reflink() -{ - # not a hard link or symlink? - cmp -s <(stat -c '%i' $1) <(stat -c '%i' $2) \ - && echo "$1 and $2 are not reflinks: same inode number" - - # same mapping? - diff -u <($XFS_IO_PROG -c "fiemap" $1 | grep -v $1) \ - <($XFS_IO_PROG -c "fiemap" $2 | grep -v $2) \ - || echo "$1 and $2 are not reflinks: different extents" -} - _require_atime() { if [ "$FSTYP" == "nfs" ]; then @@ -2764,6 +2764,15 @@ _require_btrfs_dev_del_by_devid() "(must support 'btrfs device delete /')" } +_require_test_lsattr() +{ + testio=$(lsattr -d $TEST_DIR 2>&1) + echo $testio | grep -q "Operation not supported" && \ + _notrun "lsattr not supported by test filesystem type: $FSTYP" + echo $testio | grep -q "Inappropriate ioctl for device" && \ + _notrun "lsattr not supported by test filesystem type: $FSTYP" +} + _get_total_inode() { if [ -z "$1" ]; then diff --git a/common/reflink b/common/reflink new file mode 100644 index 0000000..eab7f66 --- /dev/null +++ b/common/reflink @@ -0,0 +1,185 @@ +##/bin/bash +# Routines for reflinking, deduping, and comparing parts of files. +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle. All Rights Reserved. +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 +# USA +# +# Contact information: Oracle Corporation, 500 Oracle Parkway, +# Redwood Shores, CA 94065, USA, or: http://www.oracle.com/ +#----------------------------------------------------------------------- + +# Check that cp has a reflink argument +_require_cp_reflink() +{ + cp --help | grep -q reflink || \ + _notrun "This test requires a cp with --reflink support." +} + +# Given 2 files, verify that they have the same mapping but different +# inodes - i.e. an undisturbed reflink +# Silent if so, make noise if not +_verify_reflink() +{ + # not a hard link or symlink? + cmp -s <(stat -c '%i' $1) <(stat -c '%i' $2) \ + && echo "$1 and $2 are not reflinks: same inode number" + + # same mapping? + diff -u <($XFS_IO_PROG -c "fiemap" $1 | grep -v $1) \ + <($XFS_IO_PROG -c "fiemap" $2 | grep -v $2) \ + || echo "$1 and $2 are not reflinks: different extents" +} + +# New reflink/dedupe helpers + +# this test requires the test fs support reflink... +_require_test_reflink() +{ + _require_test + _require_xfs_io_command "reflink" + + rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2" + "$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$TEST_DIR/file1" > /dev/null + "$XFS_IO_PROG" -f -c "reflink $TEST_DIR/file1 0 0 65536" "$TEST_DIR/file2" > /dev/null + if [ ! -s "$TEST_DIR/file2" ]; then + rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2" + _notrun "Reflink not supported by test filesystem type: $FSTYP" + fi + rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2" +} + +# this test requires the scratch fs support reflink... +_require_scratch_reflink() +{ + _require_scratch + _require_xfs_io_command "reflink" + + _scratch_mkfs > /dev/null + _scratch_mount + "$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$SCRATCH_MNT/file1" > /dev/null + "$XFS_IO_PROG" -f -c "reflink $SCRATCH_MNT/file1 0 0 65536" "$SCRATCH_MNT/file2" > /dev/null + if [ ! -s "$SCRATCH_MNT/file2" ]; then + _scratch_unmount + _notrun "Reflink not supported by scratch filesystem type: $FSTYP" + fi + _scratch_unmount +} + +# this test requires the test fs support dedupe... +_require_test_dedupe() +{ + _require_test + _require_xfs_io_command "dedupe" + + rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2" + "$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$TEST_DIR/file1" > /dev/null + "$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$TEST_DIR/file2" > /dev/null + testio="$("$XFS_IO_PROG" -f -c "dedupe $TEST_DIR/file1 0 0 65536" "$TEST_DIR/file2" 2>&1)" + echo $testio | grep -q "Operation not supported" && \ + _notrun "Dedupe not supported by test filesystem type: $FSTYP" + echo $testio | grep -q "Inappropriate ioctl for device" && \ + _notrun "Dedupe not supported by test filesystem type: $FSTYP" + rm -rf "$TEST_DIR/file1" "$TEST_DIR/file2" +} + +# this test requires the scratch fs support dedupe... +_require_scratch_dedupe() +{ + _require_scratch + _require_xfs_io_command "dedupe" + + _scratch_mkfs > /dev/null + _scratch_mount + "$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$SCRATCH_MNT/file1" > /dev/null + "$XFS_IO_PROG" -f -c "pwrite -S 0x61 0 65536" "$SCRATCH_MNT/file2" > /dev/null + testio="$("$XFS_IO_PROG" -f -c "dedupe $TEST_DIR/file1 0 0 65536" "$TEST_DIR/file2" 2>&1)" + echo $testio | grep -q "Operation not supported" && \ + _notrun "Dedupe not supported by test filesystem type: $FSTYP" + echo $testio | grep -q "Inappropriate ioctl for device" && \ + _notrun "Dedupe not supported by test filesystem type: $FSTYP" + _scratch_unmount +} + +# Prints a range of a file as a hex dump +_read_range() { + file="$1" + offset="$2" + len="$3" + xfs_io_args="$4" + + $XFS_IO_PROG $xfs_io_args -f -c "pread -q -v $offset $len" "$file" | cut -d ' ' -f '3-18' +} + +# Compare ranges of two files +_compare_range() { + file1="$1" + offset1="$2" + file2="$3" + offset2="$4" + len="$5" + + cmp -s <(_read_range "$file1" "$offset1" "$len") \ + <(_read_range "$file2" "$offset2" "$len") +} + +# Prints the md5 checksum of a hexdump of a part of a given file +_md5_range_checksum() { + file="$1" + offset="$2" + len="$3" + + md5sum <(_read_range "$file" "$offset" "$len") | cut -d ' ' -f 1 +} + +# Reflink some file1 into file2 via cp +_cp_reflink() { + file1="$1" + file2="$2" + + cp --reflink=always "$file1" "$file2" +} + +# Reflink some file1 into file2 +_reflink() { + file1="$1" + file2="$2" + + "$XFS_IO_PROG" -f -c "reflink $file1" "$file2" +} + +# Reflink some part of file1 into another part of file2 +_reflink_range() { + file1="$1" + offset1="$2" + file2="$3" + offset2="$4" + len="$5" + xfs_io_args="$6" + + "$XFS_IO_PROG" $xfs_io_args -f -c "reflink $file1 $offset1 $offset2 $len" "$file2" +} + +# Dedupe some part of file1 into another part of file2 +_dedupe_range() { + file1="$1" + offset1="$2" + file2="$3" + offset2="$4" + len="$5" + xfs_io_args="$6" + + "$XFS_IO_PROG" $xfs_io_args -f -c "dedupe $file1 $offset1 $offset2 $len" "$file2" +} diff --git a/tests/btrfs/029 b/tests/btrfs/029 index 0b77b33..175317a 100755 --- a/tests/btrfs/029 +++ b/tests/btrfs/029 @@ -47,6 +47,7 @@ _cleanup() # get standard environment, filters and checks . ./common/rc . ./common/filter +. ./common/reflink # real QA test starts here _supported_fs btrfs diff --git a/tests/btrfs/031 b/tests/btrfs/031 index bcd332c..c5763da 100755 --- a/tests/btrfs/031 +++ b/tests/btrfs/031 @@ -48,6 +48,7 @@ _cleanup() # get standard environment, filters and checks . ./common/rc . ./common/filter +. ./common/reflink # real QA test starts here _supported_fs btrfs diff --git a/tests/btrfs/108 b/tests/btrfs/108 index 5e3a403..18e5b99 100755 --- a/tests/btrfs/108 +++ b/tests/btrfs/108 @@ -41,6 +41,7 @@ _cleanup() # get standard environment, filters and checks . ./common/rc . ./common/filter +. ./common/reflink # real QA test starts here _supported_fs btrfs diff --git a/tests/btrfs/109 b/tests/btrfs/109 index e2aeb73..b86336c 100755 --- a/tests/btrfs/109 +++ b/tests/btrfs/109 @@ -41,6 +41,7 @@ _cleanup() # get standard environment, filters and checks . ./common/rc . ./common/filter +. ./common/reflink # real QA test starts here _supported_fs btrfs diff --git a/tests/generic/110 b/tests/generic/110 index ec74357..468d859 100755 --- a/tests/generic/110 +++ b/tests/generic/110 @@ -43,9 +43,10 @@ _cleanup() # get standard environment, filters and checks . common/rc . common/filter +. common/reflink # real QA test starts here -_supported_fs btrfs +_require_test_reflink _supported_os Linux _require_xfs_io_command "fiemap" diff --git a/tests/generic/111 b/tests/generic/111 index 9da3f40..1797233 100755 --- a/tests/generic/111 +++ b/tests/generic/111 @@ -43,9 +43,10 @@ _cleanup() # get standard environment, filters and checks . common/rc . common/filter +. common/reflink # real QA test starts here -_supported_fs btrfs +_require_test_reflink _supported_os Linux _require_xfs_io_command "fiemap" diff --git a/tests/generic/115 b/tests/generic/115 index 35f0417..b5c64ec 100755 --- a/tests/generic/115 +++ b/tests/generic/115 @@ -41,9 +41,10 @@ _cleanup() # get standard environment, filters and checks . ./common/rc . ./common/filter +. ./common/reflink # real QA test starts here -_supported_fs btrfs +_require_test_reflink _supported_os Linux _require_xfs_io_command "fiemap" From darrick.wong@oracle.com Fri Nov 13 15:37:45 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B5EA47F7C for ; Fri, 13 Nov 2015 15:37:45 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id A6F0B8F804C for ; Fri, 13 Nov 2015 13:37:45 -0800 (PST) X-ASG-Debug-ID: 1447450660-04cbb0605d47e50001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id 4muQNeN2ljJAe89D (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:37:40 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLbCRr032698 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:37:12 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbCUI025676 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:37:12 GMT Received: from abhmp0006.oracle.com (abhmp0006.oracle.com [141.146.116.12]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbBAr028558; Fri, 13 Nov 2015 21:37:11 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:37:10 -0800 Subject: [PATCH 04/12] reflink: basic tests of the reflink and dedupe ioctls From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 04/12] reflink: basic tests of the reflink and dedupe ioctls To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:37:09 -0800 Message-ID: <20151113213709.31124.35294.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447450660 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24370 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Test the operation of the btrfs (and now xfs) reflink and dedupe ioctls at various file offsets and with matching and nonmatching files. Signed-off-by: Darrick J. Wong --- tests/generic/116 | 92 +++++++++++++++++++++++++++ tests/generic/116.out | 8 ++ tests/generic/118 | 93 +++++++++++++++++++++++++++ tests/generic/118.out | 11 +++ tests/generic/119 | 170 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/119.out | 30 +++++++++ tests/generic/121 | 92 +++++++++++++++++++++++++++ tests/generic/121.out | 8 ++ tests/generic/122 | 92 +++++++++++++++++++++++++++ tests/generic/122.out | 12 +++ tests/generic/134 | 128 +++++++++++++++++++++++++++++++++++++ tests/generic/134.out | 16 +++++ tests/generic/136 | 128 +++++++++++++++++++++++++++++++++++++ tests/generic/136.out | 17 +++++ tests/generic/137 | 131 ++++++++++++++++++++++++++++++++++++++ tests/generic/137.out | 8 ++ tests/generic/group | 8 ++ 17 files changed, 1044 insertions(+) create mode 100755 tests/generic/116 create mode 100644 tests/generic/116.out create mode 100755 tests/generic/118 create mode 100644 tests/generic/118.out create mode 100755 tests/generic/119 create mode 100644 tests/generic/119.out create mode 100755 tests/generic/121 create mode 100644 tests/generic/121.out create mode 100755 tests/generic/122 create mode 100644 tests/generic/122.out create mode 100755 tests/generic/134 create mode 100644 tests/generic/134.out create mode 100755 tests/generic/136 create mode 100644 tests/generic/136.out create mode 100755 tests/generic/137 create mode 100644 tests/generic/137.out diff --git a/tests/generic/116 b/tests/generic/116 new file mode 100755 index 0000000..2b4b505 --- /dev/null +++ b/tests/generic/116 @@ -0,0 +1,92 @@ +#! /bin/bash +# FS QA Test No. 116 +# +# Ensure that we can reflink parts of two identical files: +# - Reflink identical parts of two identical files +# - Check that we still have identical contents +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file2" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 8)) \ + || echo "Files do not match" + +echo "Reflink the middle blocks together" +free_before="$(stat -f -c '%a' "$TESTDIR")" +_reflink_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) >> "$seqres.full" +_test_remount +free_after="$(stat -f -c '%a' "$TESTDIR")" +echo "freesp changed by $free_before -> $free_after" >> "$seqres.full" + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \ + || echo "Start sections do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) \ + || echo "Middle sections do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 6)) "$TESTDIR/file2" \ + $((BLKSZ * 6)) $((BLKSZ * 2)) \ + || echo "End sections do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/116.out b/tests/generic/116.out new file mode 100644 index 0000000..5adfc62 --- /dev/null +++ b/tests/generic/116.out @@ -0,0 +1,8 @@ +QA output created by 116 +Create the original files +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-116/file1 +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-116/file2 +Reflink the middle blocks together +Compare sections +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-116/file1 +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-116/file2 diff --git a/tests/generic/118 b/tests/generic/118 new file mode 100755 index 0000000..651b72c --- /dev/null +++ b/tests/generic/118 @@ -0,0 +1,93 @@ +#! /bin/bash +# FS QA Test No. 118 +# +# Ensuring that we can reflink non-matching parts of files: +# - Reflink identical ranges of two different files +# - Check that the non-linked ranges still do not match +# - Check that we end up with identical contents in the linked ranges +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file2" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 8)) \ + || echo "Files do not match (intentional)" + +echo "Reflink the middle blocks together" +free_before="$(stat -f -c '%a' "$TESTDIR")" +_reflink_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) >> "$seqres.full" +_test_remount +free_after="$(stat -f -c '%a' "$TESTDIR")" +echo "freesp changed by $free_before -> $free_after" >> "$seqres.full" + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \ + || echo "Start sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) \ + || echo "Middle sections do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 6)) "$TESTDIR/file2" \ + $((BLKSZ * 6)) $((BLKSZ * 2)) \ + || echo "End sections do not match (intentional)" + +# success, all done +status=0 +exit diff --git a/tests/generic/118.out b/tests/generic/118.out new file mode 100644 index 0000000..8fdaf59 --- /dev/null +++ b/tests/generic/118.out @@ -0,0 +1,11 @@ +QA output created by 118 +Create the original files +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-118/file1 +5e3501f97fd2669babfcbd3e1972e833 TEST_DIR/test-118/file2 +Files do not match (intentional) +Reflink the middle blocks together +Compare sections +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-118/file1 +f7f9e44d37909868014e9151f5293ab0 TEST_DIR/test-118/file2 +Start sections do not match (intentional) +End sections do not match (intentional) diff --git a/tests/generic/119 b/tests/generic/119 new file mode 100755 index 0000000..9d57379 --- /dev/null +++ b/tests/generic/119 @@ -0,0 +1,170 @@ +#! /bin/bash +# FS QA Test No. 119 +# +# Reflinking two sets of files together: +# - Reflink identical parts of two identical files +# - Reflink identical parts of two other identical files +# - Reflink identical parts of all four files +# - Check that we end up with identical contents +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink + +rm -f "$seqres.full" + +TESTDIR=$TEST_DIR/test-$seq +rm -rf $TESTDIR +mkdir $TESTDIR + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ * 8)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $((BLKSZ * 8)) "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x63 0 $((BLKSZ * 8)) "$TESTDIR/file3" >> "$seqres.full" +_pwrite_byte 0x64 0 $((BLKSZ * 8)) "$TESTDIR/file4" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 8)) \ + || echo "Files 1-2 do not match (intentional)" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $((BLKSZ * 8)) \ + || echo "Files 1-3 do not match (intentional)" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file4" 0 $((BLKSZ * 8)) \ + || echo "Files 1-4 do not match (intentional)" + +echo "Reflink the first four blocks together, 1-2 3-4" +free_before="$(stat -f -c '%a' "$TESTDIR")" +_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) >> "$seqres.full" +_reflink_range "$TESTDIR/file3" 0 "$TESTDIR/file4" 0 $((BLKSZ * 4)) >> "$seqres.full" +_test_remount +free_after="$(stat -f -c '%a' "$TESTDIR")" +echo "freesp changed by $free_before -> $free_after" >> "$seqres.full" + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \ + || echo "Sections of file 1-2 do not match" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $((BLKSZ * 4)) \ + || echo "Sections of file 1-3 do not match (intentional)" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file4" 0 $((BLKSZ * 4)) \ + || echo "Sections of file 1-4 do not match (intentional)" + +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file3" 0 $((BLKSZ * 4)) \ + || echo "Sections of file 2-3 do not match (intentional)" + +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file4" 0 $((BLKSZ * 4)) \ + || echo "Sections of file 2-4 do not match (intentional)" + +_compare_range "$TESTDIR/file3" 0 "$TESTDIR/file4" 0 $((BLKSZ * 4)) \ + || echo "Sections of file 3-4 do not match" + +echo "Reflink the first two blocks together, 1-3 1-4" +free_before="$(stat -f -c '%a' $TESTDIR)" +_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $((BLKSZ * 2)) >> "$seqres.full" +_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file4" 0 $((BLKSZ * 2)) >> "$seqres.full" +_test_remount +free_after="$(stat -f -c '%a' $TESTDIR)" +echo "freesp changed by $free_before -> $free_after" >> "$seqres.full" + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 2)) \ + || echo "Sections of files 1-2 do not match" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $((BLKSZ * 2)) \ + || echo "Sections of files 1-3 do not match" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file4" 0 $((BLKSZ * 2)) \ + || echo "Sections of files 1-4 do not match" + +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file3" 0 $((BLKSZ * 2)) \ + || echo "Sections of files 2-3 do not match" + +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file4" 0 $((BLKSZ * 2)) \ + || echo "Sections of files 2-4 do not match" + +_compare_range "$TESTDIR/file3" 0 "$TESTDIR/file4" 0 $((BLKSZ * 2)) \ + || echo "Sections of files 3-4 do not match" + +echo "Compare previously reflinked sections" +_compare_range "$TESTDIR/file1" $((BLKSZ * 2)) "$TESTDIR/file2" \ + $((BLKSZ * 2)) $((BLKSZ * 2)) \ + || echo "Sections of file 1-2 do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 2)) "$TESTDIR/file3" \ + $((BLKSZ * 2)) $((BLKSZ * 2)) \ + || echo "Sections of file 1-3 do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 2)) "$TESTDIR/file4" \ + $((BLKSZ * 2)) $((BLKSZ * 2)) \ + || echo "Sections of file 1-4 do not match (intentional)" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 2)) "$TESTDIR/file3" \ + $((BLKSZ * 2)) $((BLKSZ * 2)) \ + || echo "Sections of file 2-3 do not match (intentional)" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 2)) "$TESTDIR/file4" \ + $((BLKSZ * 2)) $((BLKSZ * 2)) \ + || echo "Sections of file 2-4 do not match (intentional)" + +_compare_range "$TESTDIR/file3" $((BLKSZ * 2)) "$TESTDIR/file4" \ + $((BLKSZ * 2)) $((BLKSZ * 2)) \ + || echo "Sections of file 3-4 do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/119.out b/tests/generic/119.out new file mode 100644 index 0000000..85893d5 --- /dev/null +++ b/tests/generic/119.out @@ -0,0 +1,30 @@ +QA output created by 119 +Create the original files +30c2557e8302a5beb290c71520d87f42 TEST_DIR/test-119/file1 +efb787f7990e43c7dc30565d8cc344d4 TEST_DIR/test-119/file2 +c83f38d4622a78b74e3480634194b08f TEST_DIR/test-119/file3 +1c11fd3151d2229f5cf43903386aa432 TEST_DIR/test-119/file4 +Files 1-2 do not match (intentional) +Files 1-3 do not match (intentional) +Files 1-4 do not match (intentional) +Reflink the first four blocks together, 1-2 3-4 +Compare sections +30c2557e8302a5beb290c71520d87f42 TEST_DIR/test-119/file1 +63bdb182cdf03a8a19e83234d869d00a TEST_DIR/test-119/file2 +c83f38d4622a78b74e3480634194b08f TEST_DIR/test-119/file3 +dc2ae3db14e97fad93faf939170b085c TEST_DIR/test-119/file4 +Sections of file 1-3 do not match (intentional) +Sections of file 1-4 do not match (intentional) +Sections of file 2-3 do not match (intentional) +Sections of file 2-4 do not match (intentional) +Reflink the first two blocks together, 1-3 1-4 +Compare sections +30c2557e8302a5beb290c71520d87f42 TEST_DIR/test-119/file1 +63bdb182cdf03a8a19e83234d869d00a TEST_DIR/test-119/file2 +89a444ff9d6af60ba487e9a0ca2161e2 TEST_DIR/test-119/file3 +0c263058794a54c5e197ece52386f5be TEST_DIR/test-119/file4 +Compare previously reflinked sections +Sections of file 1-3 do not match (intentional) +Sections of file 1-4 do not match (intentional) +Sections of file 2-3 do not match (intentional) +Sections of file 2-4 do not match (intentional) diff --git a/tests/generic/121 b/tests/generic/121 new file mode 100755 index 0000000..9a5b383 --- /dev/null +++ b/tests/generic/121 @@ -0,0 +1,92 @@ +#! /bin/bash +# FS QA Test No. 121 +# +# Ensure that we can dedupe parts of two files: +# - Dedupe identical parts of two identical files +# - Check that still have identical contents +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_dedupe + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file2" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 8)) \ + || echo "Files 1-2 do not match (intentional)" + +echo "Dedupe the middle blocks together" +free_before="$(stat -f -c '%a' "$TESTDIR")" +_dedupe_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) >> "$seqres.full" +_test_remount +free_after="$(stat -f -c '%a' "$TESTDIR")" +echo "freesp changed by $free_before -> $free_after" >> "$seqres.full" + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \ + || echo "Start sections do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) \ + || echo "Middle sections do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 6)) "$TESTDIR/file2" \ + $((BLKSZ * 6)) $((BLKSZ * 2)) \ + || echo "End sections do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/121.out b/tests/generic/121.out new file mode 100644 index 0000000..d865c7e --- /dev/null +++ b/tests/generic/121.out @@ -0,0 +1,8 @@ +QA output created by 121 +Create the original files +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-121/file1 +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-121/file2 +Dedupe the middle blocks together +Compare sections +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-121/file1 +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-121/file2 diff --git a/tests/generic/122 b/tests/generic/122 new file mode 100755 index 0000000..0edb48d --- /dev/null +++ b/tests/generic/122 @@ -0,0 +1,92 @@ +#! /bin/bash +# FS QA Test No. 122 +# +# Ensuring that we cannot dedupe non-matching parts of files: +# - Fail to dedupe non-identical parts of two different files +# - Check that nothing changes in either file +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_dedupe + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 2)) $((BLKSZ * 6)) "$TESTDIR/file2" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 "$((BLKSZ * 8))" \ + || echo "Files 1-2 do not match (intentional)" + +echo "(Fail to) dedupe the middle blocks together" +free_before="$(stat -f -c '%a' "$TESTDIR")" +_dedupe_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) >> "$seqres.full" +_test_remount +free_after="$(stat -f -c '%a' "$TESTDIR")" +echo "freesp changed by $free_before -> $free_after" >> "$seqres.full" + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $((BLKSZ * 4)) \ + || echo "Start sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 4)) "$TESTDIR/file2" \ + $((BLKSZ * 4)) $((BLKSZ * 2)) \ + || echo "Middle sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 6)) "$TESTDIR/file2" \ + $((BLKSZ * 6)) $((BLKSZ * 2)) \ + || echo "End sections do not match (intentional)" + +# success, all done +status=0 +exit diff --git a/tests/generic/122.out b/tests/generic/122.out new file mode 100644 index 0000000..c7cfec2 --- /dev/null +++ b/tests/generic/122.out @@ -0,0 +1,12 @@ +QA output created by 122 +Create the original files +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-122/file1 +5e3501f97fd2669babfcbd3e1972e833 TEST_DIR/test-122/file2 +Files 1-2 do not match (intentional) +(Fail to) dedupe the middle blocks together +Compare sections +35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-122/file1 +5e3501f97fd2669babfcbd3e1972e833 TEST_DIR/test-122/file2 +Start sections do not match (intentional) +Middle sections do not match (intentional) +End sections do not match (intentional) diff --git a/tests/generic/134 b/tests/generic/134 new file mode 100755 index 0000000..4dc710c --- /dev/null +++ b/tests/generic/134 @@ -0,0 +1,128 @@ +#! /bin/bash +# FS QA Test No. 134 +# +# Ensure that we can reflink the last block of a file whose size isn't +# block-aligned. +# - Create two 'a' files file whose size isn't block-aligned. +# - Create two 'b' files file whose size isn't block-aligned. +# - Reflink the last block of file1 to the last block in file2 and file3. +# - Check that files 1-2 match, 3-4 don't match, and that nothing matches 3. +# - Check that the ends of 1-3 match, and 1-3 do not match the end of file4. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file3" >> "$seqres.full" +_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file4" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +C1="$(_md5_checksum $TESTDIR/file1)" +C2="$(_md5_checksum $TESTDIR/file2)" +C3="$(_md5_checksum $TESTDIR/file3)" +C4="$(_md5_checksum $TESTDIR/file4)" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "Reflink the last blocks together, 1-2 1-3" +_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 >> "$seqres.full" +_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +C1="$(_md5_checksum $TESTDIR/file1)" +C2="$(_md5_checksum $TESTDIR/file2)" +C3="$(_md5_checksum $TESTDIR/file3)" +C4="$(_md5_checksum $TESTDIR/file4)" + +echo "Compare files" +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" != "${C4}" || echo "file3 and file4 should match" + +echo "Compare sections" +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 \ + || echo "End sections of files 1-2 do not match" + +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \ + || echo "End sections of files 1-3 do not match" + +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \ + || echo "End sections of files 1-4 do not match (intentional)" + +_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \ + || echo "End sections of files 2-3 do not match" + +_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \ + || echo "End sections of files 2-4 do not match (intentional)" + +_compare_range "$TESTDIR/file3" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \ + || echo "End sections of files 3-4 do not match (intentional)" + +# success, all done +status=0 +exit diff --git a/tests/generic/134.out b/tests/generic/134.out new file mode 100644 index 0000000..b5e0f43 --- /dev/null +++ b/tests/generic/134.out @@ -0,0 +1,16 @@ +QA output created by 134 +Create the original files +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-134/file1 +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-134/file2 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-134/file3 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-134/file4 +Reflink the last blocks together, 1-2 1-3 +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-134/file1 +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-134/file2 +e236f2fe789f0aa34b50e981a2f0243a TEST_DIR/test-134/file3 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-134/file4 +Compare files +Compare sections +End sections of files 1-4 do not match (intentional) +End sections of files 2-4 do not match (intentional) +End sections of files 3-4 do not match (intentional) diff --git a/tests/generic/136 b/tests/generic/136 new file mode 100755 index 0000000..89ee751 --- /dev/null +++ b/tests/generic/136 @@ -0,0 +1,128 @@ +#! /bin/bash +# FS QA Test No. 136 +# +# Ensure that we can dedupe the last block of a file whose size isn't +# block-aligned. +# - Create two 'a' files file whose size isn't block-aligned. +# - Create two 'b' files file whose size isn't block-aligned. +# - Dedupe the last block of file1 to the last block in file2 and file3. +# - Check that files 1-2 match, and that 3-4 match. +# - Check that the ends of 1-2 and 3-4 match, and that 1-3 don't match. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_dedupe + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file3" >> "$seqres.full" +_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file4" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +C1="$(_md5_checksum $TESTDIR/file1)" +C2="$(_md5_checksum $TESTDIR/file2)" +C3="$(_md5_checksum $TESTDIR/file3)" +C4="$(_md5_checksum $TESTDIR/file4)" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "Dedupe the last blocks together" +_dedupe_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 >> "$seqres.full" +_dedupe_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir + +C1="$(_md5_checksum $TESTDIR/file1)" +C2="$(_md5_checksum $TESTDIR/file2)" +C3="$(_md5_checksum $TESTDIR/file3)" +C4="$(_md5_checksum $TESTDIR/file4)" + +echo "Compare files" +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "Compare sections" +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 \ + || echo "End sections of files 1-2 do not match" + +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \ + || echo "End sections of files 1-3 do not match (intentional)" + +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \ + || echo "End sections of files 1-4 do not match (intentional)" + +_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \ + || echo "End sections of files 2-3 do not match (intentional)" + +_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \ + || echo "End sections of files 2-4 do not match (intentional)" + +_compare_range "$TESTDIR/file3" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \ + || echo "End sections of files 3-4 do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/136.out b/tests/generic/136.out new file mode 100644 index 0000000..99a5465 --- /dev/null +++ b/tests/generic/136.out @@ -0,0 +1,17 @@ +QA output created by 136 +Create the original files +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-136/file1 +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-136/file2 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-136/file3 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-136/file4 +Dedupe the last blocks together +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-136/file1 +c4fd505be25a0c91bcca9f502b9a8156 TEST_DIR/test-136/file2 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-136/file3 +07ac67bf7f271195442509e79cde4cee TEST_DIR/test-136/file4 +Compare files +Compare sections +End sections of files 1-3 do not match (intentional) +End sections of files 1-4 do not match (intentional) +End sections of files 2-3 do not match (intentional) +End sections of files 2-4 do not match (intentional) diff --git a/tests/generic/137 b/tests/generic/137 new file mode 100755 index 0000000..a640f4f --- /dev/null +++ b/tests/generic/137 @@ -0,0 +1,131 @@ +#! /bin/bash +# FS QA Test No. 137 +# +# Ensure that we can reflink and dedupe blocks within the same file... +# - Create a file with three distinct blocks ABB +# - Reflink block zero to the multiple-of-three blocks +# - Reflink block one to the multiple-of-five blocks +# - Dedupe block two to the multiple-of-seven blocks +# - Check that we successfully avoid deduping with holes, unwritten +# extents, and non-matches; but actually dedupe real matches. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_test_dedupe +_require_xfs_io_command "falloc" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ=65536 +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $((BLKSZ * 2)) "$TESTDIR/file1" >> "$seqres.full" + +NR_BLKS=1024 + +echo "fallocate half the file" +"$XFS_IO_PROG" -f -c "falloc $((NR_BLKS * BLKSZ / 2)) $((NR_BLKS * BLKSZ / 2))" "$TESTDIR/file1" >> "$seqres.full" + +echo "Reflink block zero to the threes" +seq 1 $((NR_BLKS / 3)) | while read nr; do + _reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file1" $((nr * 3 * BLKSZ)) \ + $BLKSZ >> "$seqres.full" +done + +echo "Reflink block one to the fives" +seq 1 $((NR_BLKS / 5)) | while read nr; do + _reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file1" \ + $((nr * 5 * BLKSZ)) $BLKSZ >> "$seqres.full" +done + +echo "Dedupe block two to the sevens" +seq 1 $((NR_BLKS / 7)) | while read nr; do + _dedupe_range "$TESTDIR/file1" $((BLKSZ * 2)) "$TESTDIR/file1" \ + $((nr * 7 * BLKSZ)) $BLKSZ >> "$seqres.full" +done + +_test_remount + +echo "Check block mappings" +md5sum "$TESTDIR/file1" | _filter_test_dir + +crcZ=$(_md5_range_checksum /dev/zero 0 $BLKSZ) +crc0=$(_md5_range_checksum "$TESTDIR/file1" 0 $BLKSZ) +crc1=$(_md5_range_checksum "$TESTDIR/file1" $BLKSZ $BLKSZ) +crc2=$(_md5_range_checksum "$TESTDIR/file1" $((BLKSZ * 2)) $BLKSZ) + +check_block() { + lblk="$1" + rem7=$((lblk % 7)) + rem5=$((lblk % 5)) + rem3=$((lblk % 3)) + + crc=$(_md5_range_checksum "$TESTDIR/file1" $((lblk * BLKSZ)) $BLKSZ) + + if [ $rem7 -eq 0 ]; then + if [ $rem5 -eq 0 ]; then + test $crc2 = $crc || echo "lblk $lblk doesn't match block 2" + elif [ $rem3 -eq 0 ]; then + test $crc0 = $crc || echo "lblk $lblk doesn't match block 0" + elif [ $lblk -lt $((NR_BLKS / 2)) ]; then + test $crcZ = $crc || echo "lblk $lblk isn't zeroed" + fi + elif [ $rem5 -eq 0 ]; then + test $crc1 = $crc || echo "lblk $lblk doesn't match block 1" + elif [ $rem3 -eq 0 ]; then + test $crc0 = $crc || echo "lblk $lblk doesn't match block 0" + elif [ $lblk -lt $((NR_BLKS / 2)) ]; then + test $crcZ = $crc || echo "lblk $lblk isn't zeroed" + fi +} + +seq 3 $((NR_BLKS - 1)) | while read lblk; do + err="$(check_block $lblk)" + test -n "$err" && echo "$lblk: $err" +done + +# success, all done +status=0 +exit diff --git a/tests/generic/137.out b/tests/generic/137.out new file mode 100644 index 0000000..7808988 --- /dev/null +++ b/tests/generic/137.out @@ -0,0 +1,8 @@ +QA output created by 137 +Create the original file blocks +fallocate half the file +Reflink block zero to the threes +Reflink block one to the fives +Dedupe block two to the sevens +Check block mappings +2ea37912bdbd71b9ed4734d3141cbe9c TEST_DIR/test-137/file1 diff --git a/tests/generic/group b/tests/generic/group index aa31c8b..50cc132 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -118,8 +118,13 @@ 113 rw aio auto quick 114 rw aio auto quick 115 auto quick clone +116 auto quick clone 117 attr auto quick +118 auto quick clone +119 auto quick clone 120 other auto quick +121 auto quick clone +122 auto quick clone 123 perms auto quick 124 pattern auto quick 125 other auto @@ -131,7 +136,10 @@ 131 perms auto quick 132 pattern auto 133 rw auto +134 auto quick clone 135 metadata auto quick +136 auto quick clone +137 auto quick clone 141 rw auto quick 169 rw metadata auto quick 184 metadata auto quick From darrick.wong@oracle.com Fri Nov 13 15:37:51 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 276127F82 for ; Fri, 13 Nov 2015 15:37:51 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 074948F8033 for ; Fri, 13 Nov 2015 13:37:50 -0800 (PST) X-ASG-Debug-ID: 1447450666-04cbb0605d47e70001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id x5GBzlRPZT39ZBOS (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:37:46 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLbINP018580 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:37:18 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbIgq010271 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:37:18 GMT Received: from abhmp0019.oracle.com (abhmp0019.oracle.com [141.146.116.25]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbHfb026437; Fri, 13 Nov 2015 21:37:17 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:37:17 -0800 Subject: [PATCH 05/12] reflink: test CoW behaviors of reflinked files From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 05/12] reflink: test CoW behaviors of reflinked files To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:37:16 -0800 Message-ID: <20151113213716.31124.72794.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447450666 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24370 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Ensure that CoW happens correctly with buffered, directio, and mmap writes. Signed-off-by: Darrick J. Wong --- tests/generic/138 | 152 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/138.out | 19 ++++++ tests/generic/139 | 151 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/139.out | 19 ++++++ tests/generic/140 | 152 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/140.out | 19 ++++++ tests/generic/142 | 91 +++++++++++++++++++++++++++++ tests/generic/142.out | 8 +++ tests/generic/143 | 91 +++++++++++++++++++++++++++++ tests/generic/143.out | 8 +++ tests/generic/group | 5 ++ 11 files changed, 715 insertions(+) create mode 100755 tests/generic/138 create mode 100644 tests/generic/138.out create mode 100755 tests/generic/139 create mode 100644 tests/generic/139.out create mode 100755 tests/generic/140 create mode 100644 tests/generic/140.out create mode 100755 tests/generic/142 create mode 100644 tests/generic/142.out create mode 100755 tests/generic/143 create mode 100644 tests/generic/143.out diff --git a/tests/generic/138 b/tests/generic/138 new file mode 100755 index 0000000..c084679 --- /dev/null +++ b/tests/generic/138 @@ -0,0 +1,152 @@ +#! /bin/bash +# FS QA Test No. 138 +# +# Ensuring that copy on write through the page cache works: +# - Reflink two files together +# - Write to the beginning, middle, and end +# - Check that the files are now different where we say they're different. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ * 48 - 3)) "$TESTDIR/file1" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x61 0 $((BLKSZ * 48 - 3)) "$TESTDIR/file3" >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir + +cmp -s "$TESTDIR/file1" "$TESTDIR/file2" || echo "Files 1-2 do not match" +cmp -s "$TESTDIR/file1" "$TESTDIR/file3" || echo "Files 1-3 do not match" +cmp -s "$TESTDIR/file2" "$TESTDIR/file3" || echo "Files 2-3 do not match" + +echo "pagecache CoW the second file" +_pwrite_byte 0x62 0 17 "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x62 0 17 "$TESTDIR/file3" >> "$seqres.full" + +_pwrite_byte 0x62 $((BLKSZ * 16 - 34)) 17 "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 16 - 34)) 17 "$TESTDIR/file3" >> "$seqres.full" + +_pwrite_byte 0x62 $((BLKSZ * 48 - 8)) 17 "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 48 - 8)) 17 "$TESTDIR/file3" >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir + +cmp -s "$TESTDIR/file1" "$TESTDIR/file2" || echo "Files 1-2 do not match (intentional)" +cmp -s "$TESTDIR/file1" "$TESTDIR/file3" || echo "Files 1-3 do not match (intentional)" +cmp -s "$TESTDIR/file2" "$TESTDIR/file3" || echo "Files 2-3 do not match" + +echo "Compare the CoW'd section to the before file" +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 17 \ + || echo "Start sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16 - 34)) \ + "$TESTDIR/file2" $((BLKSZ * 16 - 34)) 17 \ + || echo "Middle sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 48 - 8)) \ + "$TESTDIR/file2" $((BLKSZ * 48 - 8)) 17 \ + || echo "End sections do not match (intentional)" + +echo "Compare the CoW'd section to the after file" +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file3" 0 17 \ + || echo "Start sections do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16 - 34)) \ + "$TESTDIR/file3" $((BLKSZ * 16 - 34)) 17 \ + || echo "Middle sections do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 48 - 8)) \ + "$TESTDIR/file3" $((BLKSZ * 48 - 8)) 17 \ + || echo "End sections do not match" + +echo "Compare the not CoW'd sections" +_compare_range "$TESTDIR/file1" 18 "$TESTDIR/file2" 18 17 \ + || echo "Start sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" 18 "$TESTDIR/file3" 18 17 \ + || echo "Start sections of 2-3 do not match" + + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16 - 17)) \ + "$TESTDIR/file2" $((BLKSZ * 16 - 17)) 82 \ + || echo "Middle sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16 - 17)) \ + "$TESTDIR/file3" $((BLKSZ * 16 - 17)) 82 \ + || echo "Middle sections of 2-3 do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 48 - 108)) \ + "$TESTDIR/file2" $((BLKSZ * 48 - 108)) 100 \ + || echo "End sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 48 - 108)) \ + "$TESTDIR/file3" $((BLKSZ * 48 - 108)) 100 \ + || echo "End sections of 2-3 do not match" + + +_compare_range "$TESTDIR/file1" $((BLKSZ * 14)) \ + "$TESTDIR/file2" $((BLKSZ * 14)) $BLKSZ \ + || echo "Untouched sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 14)) \ + "$TESTDIR/file3" $((BLKSZ * 14)) $BLKSZ \ + || echo "Untouched sections of 2-3 do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/138.out b/tests/generic/138.out new file mode 100644 index 0000000..b0cafab --- /dev/null +++ b/tests/generic/138.out @@ -0,0 +1,19 @@ +QA output created by 138 +Create the original files +Compare files +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-138/file1 +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-138/file2 +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-138/file3 +pagecache CoW the second file +Compare files +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-138/file1 +4a879c2f322121f6f4b8ebede1909a7c TEST_DIR/test-138/file2 +4a879c2f322121f6f4b8ebede1909a7c TEST_DIR/test-138/file3 +Files 1-2 do not match (intentional) +Files 1-3 do not match (intentional) +Compare the CoW'd section to the before file +Start sections do not match (intentional) +Middle sections do not match (intentional) +End sections do not match (intentional) +Compare the CoW'd section to the after file +Compare the not CoW'd sections diff --git a/tests/generic/139 b/tests/generic/139 new file mode 100755 index 0000000..54c68fb --- /dev/null +++ b/tests/generic/139 @@ -0,0 +1,151 @@ +#! /bin/bash +# FS QA Test No. 139 +# +# Ensuring that copy on write in direct-io mode works: +# - Reflink two files together +# - Write to the beginning, middle, and end in direct-io mode +# - Check that the files are now different where we say they're different. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR=$TEST_DIR/test-$seq +rm -rf $TESTDIR +mkdir $TESTDIR + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ * 48 - 3)) "$TESTDIR/file1" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x61 0 $((BLKSZ * 48 - 3)) "$TESTDIR/file3" >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir + +cmp -s "$TESTDIR/file1" "$TESTDIR/file2" || echo "Files 1-2 should match" +cmp -s "$TESTDIR/file1" "$TESTDIR/file3" || echo "Files 1-3 should match" +cmp -s "$TESTDIR/file2" "$TESTDIR/file3" || echo "Files 2-3 should match" + +echo "directio CoW the second file" +_pwrite_byte 0x62 0 $BLKSZ "$TESTDIR/file2" -d >> "$seqres.full" +_pwrite_byte 0x62 0 $BLKSZ "$TESTDIR/file3" -d >> "$seqres.full" + +_pwrite_byte 0x62 $((BLKSZ * 16 - 512)) 512 "$TESTDIR/file2" -d >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 16 - 512)) 512 "$TESTDIR/file3" -d >> "$seqres.full" + +_pwrite_byte 0x62 $((BLKSZ * 48)) $BLKSZ "$TESTDIR/file2" -d >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 48)) $BLKSZ "$TESTDIR/file3" -d >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir + +cmp -s "$TESTDIR/file1" "$TESTDIR/file2" || echo "Files 1-2 should not match (intentional)" +cmp -s "$TESTDIR/file1" "$TESTDIR/file3" || echo "Files 1-3 should not match (intentional)" +cmp -s "$TESTDIR/file2" "$TESTDIR/file3" || echo "Files 2-3 should match" + +echo "Compare the CoW'd section to the before file" +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 $BLKSZ \ + || echo "Start sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16 - 512)) \ + "$TESTDIR/file2" $((BLKSZ * 16 - 512)) 512 \ + || echo "Middle sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 48 - 512)) \ + "$TESTDIR/file2" $((BLKSZ * 48 - 512)) $BLKSZ \ + || echo "End sections do not match (intentional)" + +echo "Compare the CoW'd section to the after file" +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file3" 0 $BLKSZ \ + || echo "Start sections do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16 - 512)) \ + "$TESTDIR/file3" $((BLKSZ * 16 - 512)) 512 \ + || echo "Middle sections do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 48 - 512)) \ + "$TESTDIR/file3" $((BLKSZ * 48 - 512)) $BLKSZ \ + || echo "End sections do not match" + +echo "Compare the not CoW'd sections" +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 512 \ + || echo "Start sections of 1-2 do not match" +_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file3" $BLKSZ 512 \ + || echo "Start sections of 2-3 do not match" + + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16 - 1024)) \ + "$TESTDIR/file2" $((BLKSZ * 16 - 1024)) 512 \ + || echo "Middle sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16 - 1024)) \ + "$TESTDIR/file3" $((BLKSZ * 16 - 1024)) 512 \ + || echo "Middle sections of 2-3 do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 48 - 1024)) \ + "$TESTDIR/file2" $((BLKSZ * 48 - 1024)) 512 \ + || echo "End sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 48 - 1024)) \ + "$TESTDIR/file3" $((BLKSZ * 48 - 1024)) 512 \ + || echo "End sections of 2-3 do not match" + + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16)) \ + "$TESTDIR/file2" $((BLKSZ * 16)) 512 \ + || echo "Untouched sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16)) \ + "$TESTDIR/file3" $((BLKSZ * 16)) 512 \ + || echo "Untouched sections of 2-3 do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/139.out b/tests/generic/139.out new file mode 100644 index 0000000..28d04f5 --- /dev/null +++ b/tests/generic/139.out @@ -0,0 +1,19 @@ +QA output created by 139 +Create the original files +Compare files +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-139/file1 +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-139/file2 +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-139/file3 +directio CoW the second file +Compare files +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-139/file1 +ff5626fb6c71b242d6b1a43de25c9a85 TEST_DIR/test-139/file2 +ff5626fb6c71b242d6b1a43de25c9a85 TEST_DIR/test-139/file3 +Files 1-2 should not match (intentional) +Files 1-3 should not match (intentional) +Compare the CoW'd section to the before file +Start sections do not match (intentional) +Middle sections do not match (intentional) +End sections do not match (intentional) +Compare the CoW'd section to the after file +Compare the not CoW'd sections diff --git a/tests/generic/140 b/tests/generic/140 new file mode 100755 index 0000000..6299d8e --- /dev/null +++ b/tests/generic/140 @@ -0,0 +1,152 @@ +#! /bin/bash +# FS QA Test No. 140 +# +# Ensuring that mmap copy on write through the page cache works: +# - Reflink two files together +# - Write to the beginning, middle, and end +# - Check that the files are now different where we say they're different. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ * 48 - 3)) "$TESTDIR/file1" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x61 0 $((BLKSZ * 48 - 3)) "$TESTDIR/file3" >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir + +cmp -s "$TESTDIR/file1" "$TESTDIR/file2" || echo "Files 1-2 do not match" +cmp -s "$TESTDIR/file1" "$TESTDIR/file3" || echo "Files 1-3 do not match" +cmp -s "$TESTDIR/file2" "$TESTDIR/file3" || echo "Files 2-3 do not match" + +echo "mmap CoW the second file" +_mwrite_byte 0x62 0 17 $((BLKSZ * 48 - 3)) "$TESTDIR/file2" >> "$seqres.full" +_mwrite_byte 0x62 0 17 $((BLKSZ * 48 - 3)) "$TESTDIR/file3" >> "$seqres.full" + +_mwrite_byte 0x62 $((BLKSZ * 16 - 34)) 17 $((BLKSZ * 48 - 3)) "$TESTDIR/file2" >> "$seqres.full" +_mwrite_byte 0x62 $((BLKSZ * 16 - 34)) 17 $((BLKSZ * 48 - 3)) "$TESTDIR/file3" >> "$seqres.full" + +_mwrite_byte 0x62 $((BLKSZ * 48 - 20)) 17 $((BLKSZ * 48 - 3)) "$TESTDIR/file2" >> "$seqres.full" +_mwrite_byte 0x62 $((BLKSZ * 48 - 20)) 17 $((BLKSZ * 48 - 3)) "$TESTDIR/file3" >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir + +cmp -s "$TESTDIR/file1" "$TESTDIR/file2" || echo "Files 1-2 do not match (intentional)" +cmp -s "$TESTDIR/file1" "$TESTDIR/file3" || echo "Files 1-3 do not match (intentional)" +cmp -s "$TESTDIR/file2" "$TESTDIR/file3" || echo "Files 2-3 do not match" + +echo "Compare the CoW'd section to the before file" +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file2" 0 17 \ + || echo "Start sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16 - 34)) \ + "$TESTDIR/file2" $((BLKSZ * 16 - 34)) 17 \ + || echo "Middle sections do not match (intentional)" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 48 - 20)) \ + "$TESTDIR/file2" $((BLKSZ * 48 - 20)) 17 \ + || echo "End sections do not match (intentional)" + +echo "Compare the CoW'd section to the after file" +_compare_range "$TESTDIR/file2" 0 "$TESTDIR/file3" 0 17 \ + || echo "Start sections do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16 - 34)) \ + "$TESTDIR/file3" $((BLKSZ * 16 - 34)) 17 \ + || echo "Middle sections do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 48 - 20)) \ + "$TESTDIR/file3" $((BLKSZ * 48 - 20)) 17 \ + || echo "End sections do not match" + +echo "Compare the not CoW'd sections" +_compare_range "$TESTDIR/file1" 18 "$TESTDIR/file2" 18 17 \ + || echo "Start sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" 18 "$TESTDIR/file3" 18 17 \ + || echo "Start sections of 2-3 do not match" + + +_compare_range "$TESTDIR/file1" $((BLKSZ * 16 - 17)) \ + "$TESTDIR/file2" $((BLKSZ * 16 - 17)) 82 \ + || echo "Middle sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 16 - 17)) \ + "$TESTDIR/file3" $((BLKSZ * 16 - 17)) 82 \ + || echo "Middle sections of 2-3 do not match" + +_compare_range "$TESTDIR/file1" $((BLKSZ * 48 - 120)) \ + "$TESTDIR/file2" $((BLKSZ * 48 - 120)) 100 \ + || echo "End sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 48 - 120)) \ + "$TESTDIR/file3" $((BLKSZ * 48 - 120)) 100 \ + || echo "End sections of 2-3 do not match" + + +_compare_range "$TESTDIR/file1" $((BLKSZ * 14)) \ + "$TESTDIR/file2" $((BLKSZ * 14)) $BLKSZ \ + || echo "Untouched sections of 1-2 do not match" + +_compare_range "$TESTDIR/file2" $((BLKSZ * 14)) \ + "$TESTDIR/file3" $((BLKSZ * 14)) $BLKSZ \ + || echo "Untouched sections of 2-3 do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/140.out b/tests/generic/140.out new file mode 100644 index 0000000..51a5b85 --- /dev/null +++ b/tests/generic/140.out @@ -0,0 +1,19 @@ +QA output created by 140 +Create the original files +Compare files +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-140/file1 +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-140/file2 +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-140/file3 +mmap CoW the second file +Compare files +60ebe700450b6015c17fa15cacb9493b TEST_DIR/test-140/file1 +795ecfd281dbda4916431376228e4187 TEST_DIR/test-140/file2 +795ecfd281dbda4916431376228e4187 TEST_DIR/test-140/file3 +Files 1-2 do not match (intentional) +Files 1-3 do not match (intentional) +Compare the CoW'd section to the before file +Start sections do not match (intentional) +Middle sections do not match (intentional) +End sections do not match (intentional) +Compare the CoW'd section to the after file +Compare the not CoW'd sections diff --git a/tests/generic/142 b/tests/generic/142 new file mode 100755 index 0000000..cf6d634 --- /dev/null +++ b/tests/generic/142 @@ -0,0 +1,91 @@ +#! /bin/bash +# FS QA Test No. 142 +# +# Ensure that reflinking a file N times and CoWing the copies leaves the +# original intact. +# - Create a file and record its hash +# - Create some reflink copies +# - Rewrite all the reflink copies +# - Compare the contents of the original file +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ=65536 +NR=9 +_pwrite_byte 0x61 0 $((BLKSZ * 256)) "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +csum="$(_md5_checksum "$TESTDIR/file1")" + +echo "Create the reflink copies" +seq 2 $NR | while read i; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount + +echo "Rewrite the copies" +seq 2 $NR | while read i; do + _pwrite_byte 0x62 0 $((BLKSZ * 256)) "$TESTDIR/file$i" >> "$seqres.full" +done +_test_remount + +echo "Examine original file" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +mod_csum="$(_md5_checksum "$TESTDIR/file2")" +new_csum="$(_md5_checksum "$TESTDIR/file1")" +test "${csum}" != "${mod_csum}" || echo "checksums do not match" +test "${csum}" = "${new_csum}" || echo "checksums do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/142.out b/tests/generic/142.out new file mode 100644 index 0000000..b55d0f0 --- /dev/null +++ b/tests/generic/142.out @@ -0,0 +1,8 @@ +QA output created by 142 +Create the original file blocks +f4820540fc0ac02750739896fe028d56 TEST_DIR/test-142/file1 +Create the reflink copies +Rewrite the copies +Examine original file +f4820540fc0ac02750739896fe028d56 TEST_DIR/test-142/file1 +eb34153e9ed1e774db28cbbe4090a449 TEST_DIR/test-142/file2 diff --git a/tests/generic/143 b/tests/generic/143 new file mode 100755 index 0000000..d2ccb94 --- /dev/null +++ b/tests/generic/143 @@ -0,0 +1,91 @@ +#! /bin/bash +# FS QA Test No. 143 +# +# Ensure that reflinking a file N times and DIO CoWing the copies leaves the +# original intact. +# - Create a file and record its hash +# - Create some reflink copies +# - Rewrite all the reflink copies w/ directio +# - Compare the contents of the original file +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ=65536 +NR=9 +_pwrite_byte 0x61 0 $((BLKSZ * 256)) "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +csum="$(_md5_checksum "$TESTDIR/file1")" + +echo "Create the reflink copies" +seq 2 $NR | while read i; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount + +echo "Rewrite the copies" +seq 2 $NR | while read i; do + _pwrite_byte 0x62 0 $((BLKSZ * 256)) "$TESTDIR/file$i" -d >> "$seqres.full" +done +_test_remount + +echo "Examine original file" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir + +mod_csum="$(_md5_checksum "$TESTDIR/file2")" +new_csum="$(_md5_checksum "$TESTDIR/file1")" +test "${csum}" != "${mod_csum}" || echo "checksums do not match" +test "${csum}" = "${new_csum}" || echo "checksums do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/143.out b/tests/generic/143.out new file mode 100644 index 0000000..70a1e71 --- /dev/null +++ b/tests/generic/143.out @@ -0,0 +1,8 @@ +QA output created by 143 +Create the original file blocks +f4820540fc0ac02750739896fe028d56 TEST_DIR/test-143/file1 +Create the reflink copies +Rewrite the copies +Examine original file +f4820540fc0ac02750739896fe028d56 TEST_DIR/test-143/file1 +eb34153e9ed1e774db28cbbe4090a449 TEST_DIR/test-143/file2 diff --git a/tests/generic/group b/tests/generic/group index 50cc132..7b55707 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -140,7 +140,12 @@ 135 metadata auto quick 136 auto quick clone 137 auto quick clone +138 auto quick clone +139 auto quick clone +140 auto quick clone 141 rw auto quick +142 auto quick clone +143 auto quick clone 169 rw metadata auto quick 184 metadata auto quick 192 atime auto From darrick.wong@oracle.com Fri Nov 13 15:37:54 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B7A727F7B for ; Fri, 13 Nov 2015 15:37:54 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6404C8F8035 for ; Fri, 13 Nov 2015 13:37:54 -0800 (PST) X-ASG-Debug-ID: 1447450668-04bdf07f0a46a70001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id RnXv8TR5z17BzZZ5 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:37:48 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLbPpZ000404 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:37:25 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbP0p024880 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:37:25 GMT Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbOVU002343; Fri, 13 Nov 2015 21:37:24 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:37:24 -0800 Subject: [PATCH 06/12] reflink: test the various fallocate modes From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 06/12] reflink: test the various fallocate modes To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:37:22 -0800 Message-ID: <20151113213722.31124.56074.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447450668 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24371 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Check that the variants of fallocate (allocate, punch, zero range, collapse range, insert range) do the right thing when they're run against a range of reflinked blocks. Signed-off-by: Darrick J. Wong --- tests/generic/144 | 142 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/144.out | 16 ++++++ tests/generic/145 | 142 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/145.out | 19 +++++++ tests/generic/146 | 136 +++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/146.out | 19 +++++++ tests/generic/147 | 139 ++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/147.out | 19 +++++++ tests/generic/148 | 116 ++++++++++++++++++++++++++++++++++++++++ tests/generic/148.out | 15 +++++ tests/generic/149 | 136 +++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/149.out | 19 +++++++ tests/generic/group | 6 ++ 13 files changed, 924 insertions(+) create mode 100755 tests/generic/144 create mode 100644 tests/generic/144.out create mode 100755 tests/generic/145 create mode 100644 tests/generic/145.out create mode 100755 tests/generic/146 create mode 100644 tests/generic/146.out create mode 100755 tests/generic/147 create mode 100644 tests/generic/147.out create mode 100755 tests/generic/148 create mode 100644 tests/generic/148.out create mode 100755 tests/generic/149 create mode 100644 tests/generic/149.out diff --git a/tests/generic/144 b/tests/generic/144 new file mode 100755 index 0000000..bee0893 --- /dev/null +++ b/tests/generic/144 @@ -0,0 +1,142 @@ +#! /bin/bash +# FS QA Test No. 144 +# +# Ensure that fallocate steps around reflinked ranges: +# - Reflink parts of two files together +# - Fallocate all the other sparse space. +# - Check that the reflinked areas are still there. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "falloc" +_require_xfs_io_command "truncate" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $((BLKSZ * 5 + 37)) "$TESTDIR/file1" >> "$seqres.full" + +_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ \ + $((BLKSZ * 4 + 37)) >> "$seqres.full" + +"$XFS_IO_PROG" -f -c "truncate $((BLKSZ * 5 + 37))" "$TESTDIR/file3" >> "$seqres.full" +_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $BLKSZ >> "$seqres.full" + +"$XFS_IO_PROG" -f -c "truncate $((BLKSZ * 5 + 37))" "$TESTDIR/file4" >> "$seqres.full" +_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ $BLKSZ >> "$seqres.full" +_reflink_range "$TESTDIR/file1" $((BLKSZ * 3)) "$TESTDIR/file4" $((BLKSZ * 3)) \ + $BLKSZ >> "$seqres.full" + +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file5" +_test_remount + +echo "Compare sections" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file5" | _filter_test_dir + +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ \ + $((BLKSZ * 4 + 37)) \ + || echo "shared parts of files 1-2 changed" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $BLKSZ \ + || echo "shared parts of files 1-3 changed" + +_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ $BLKSZ \ + || echo "shared parts of files 1-4 changed" + +_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file5" 0 $((BLKSZ * 5 + 37)) \ + || echo "shared parts of files 1-5 changed" + +echo "Compare files" +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" +C5="$(_md5_checksum "$TESTDIR/file5")" + +test "${C1}" != "${C2}" || echo "file1 and file2 should not match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C1}" = "${C5}" || echo "file1 and file5 should match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C2}" != "${C5}" || echo "file2 and file5 should not match" +test "${C3}" != "${C4}" || echo "file3 and file4 should not match" +test "${C3}" != "${C5}" || echo "file3 and file5 should not match" +test "${C4}" != "${C5}" || echo "file4 and file5 should not match" + +echo "falloc everything" +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 5))" "$TESTDIR/file2" >> "$seqres.full" +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 5))" "$TESTDIR/file3" >> "$seqres.full" +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 5))" "$TESTDIR/file4" >> "$seqres.full" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file5" | _filter_test_dir + +D1="$(_md5_checksum "$TESTDIR/file1")" +D2="$(_md5_checksum "$TESTDIR/file2")" +D3="$(_md5_checksum "$TESTDIR/file3")" +D4="$(_md5_checksum "$TESTDIR/file4")" +D5="$(_md5_checksum "$TESTDIR/file5")" + +test "${C1}" = "${D1}" || echo "file1 should not change" +test "${C2}" = "${D2}" || echo "file2 should not change" +test "${C3}" = "${D3}" || echo "file3 should not change" +test "${C4}" = "${D4}" || echo "file4 should not change" +test "${C5}" = "${D5}" || echo "file2 should not change" + +# success, all done +status=0 +exit diff --git a/tests/generic/144.out b/tests/generic/144.out new file mode 100644 index 0000000..0bcf4b9 --- /dev/null +++ b/tests/generic/144.out @@ -0,0 +1,16 @@ +QA output created by 144 +Create the original files +Compare sections +ee8004e6298fa128477bd4aa1adc69fb TEST_DIR/test-144/file1 +a7cb8cb9697d59413e0d10495d226398 TEST_DIR/test-144/file2 +7d42a0a2865c94f45435a2ce7627da02 TEST_DIR/test-144/file3 +7f528bc76f4d61ff9cff7bc1906579c6 TEST_DIR/test-144/file4 +ee8004e6298fa128477bd4aa1adc69fb TEST_DIR/test-144/file5 +Compare files +falloc everything +Compare files +ee8004e6298fa128477bd4aa1adc69fb TEST_DIR/test-144/file1 +a7cb8cb9697d59413e0d10495d226398 TEST_DIR/test-144/file2 +7d42a0a2865c94f45435a2ce7627da02 TEST_DIR/test-144/file3 +7f528bc76f4d61ff9cff7bc1906579c6 TEST_DIR/test-144/file4 +ee8004e6298fa128477bd4aa1adc69fb TEST_DIR/test-144/file5 diff --git a/tests/generic/145 b/tests/generic/145 new file mode 100755 index 0000000..8a14f82 --- /dev/null +++ b/tests/generic/145 @@ -0,0 +1,142 @@ +#! /bin/bash +# FS QA Test No. 145 +# +# Ensure that collapse range steps around reflinked ranges: +# - Create three reflink clones of a file +# - Collapse the start, middle, and end of the reflink range of each +# of the three files, respectively +# - Check that the reflinked areas are still there. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "falloc" +_require_xfs_io_command "fcollapse" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full" + +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file3" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file4" + +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 4))" "$TESTDIR/file1" +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 4))" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 4))" "$TESTDIR/file3" +"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 4))" "$TESTDIR/file4" + +_pwrite_byte 0x62 0 $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x63 $BLKSZ $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x63 $BLKSZ $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" = "${C3}" || echo "file1 and file3 should match" +test "${C1}" = "${C4}" || echo "file1 and file4 should match" +test "${C2}" = "${C3}" || echo "file2 and file3 should match" +test "${C2}" = "${C4}" || echo "file2 and file4 should match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "fcollapse files" +"$XFS_IO_PROG" -f -c "fcollapse 0 $BLKSZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "fcollapse $BLKSZ $BLKSZ" "$TESTDIR/file3" +"$XFS_IO_PROG" -f -c "fcollapse $((BLKSZ * 2)) $BLKSZ" "$TESTDIR/file4" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" != "${C2}" || echo "file1 and file2 should not match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" != "${C4}" || echo "file3 and file4 should not match" + +echo "Compare against check files" +cmp -s "$TESTDIR/file2" "$TESTDIR/file2.chk" || echo "file2 and file2.chk do not match" +cmp -s "$TESTDIR/file3" "$TESTDIR/file3.chk" || echo "file3 and file3.chk do not match" +cmp -s "$TESTDIR/file4" "$TESTDIR/file4.chk" || echo "file4 and file4.chk do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/145.out b/tests/generic/145.out new file mode 100644 index 0000000..e36c61d --- /dev/null +++ b/tests/generic/145.out @@ -0,0 +1,19 @@ +QA output created by 145 +Create the original files +564b34fb4a562f6d864f371248e48540 TEST_DIR/test-145/file1 +564b34fb4a562f6d864f371248e48540 TEST_DIR/test-145/file2 +564b34fb4a562f6d864f371248e48540 TEST_DIR/test-145/file3 +564b34fb4a562f6d864f371248e48540 TEST_DIR/test-145/file4 +9a239246ce4bee20f2de1b0ba41a41e0 TEST_DIR/test-145/file2.chk +859c251680d8bbf0f859f5c6d7a6a2a2 TEST_DIR/test-145/file3.chk +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-145/file4.chk +fcollapse files +Compare files +564b34fb4a562f6d864f371248e48540 TEST_DIR/test-145/file1 +9a239246ce4bee20f2de1b0ba41a41e0 TEST_DIR/test-145/file2 +859c251680d8bbf0f859f5c6d7a6a2a2 TEST_DIR/test-145/file3 +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-145/file4 +9a239246ce4bee20f2de1b0ba41a41e0 TEST_DIR/test-145/file2.chk +859c251680d8bbf0f859f5c6d7a6a2a2 TEST_DIR/test-145/file3.chk +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-145/file4.chk +Compare against check files diff --git a/tests/generic/146 b/tests/generic/146 new file mode 100755 index 0000000..9e3eff6 --- /dev/null +++ b/tests/generic/146 @@ -0,0 +1,136 @@ +#! /bin/bash +# FS QA Test No. 146 +# +# Ensure that punch-hole steps around reflinked ranges: +# - Create three reflink clones of a file +# - Punch the start, middle, and end of the reflink range of each +# of the three files, respectively +# - Check that the reflinked areas are still there. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "fpunch" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full" + +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file3" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file4" + +_pwrite_byte 0x00 0 $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x00 $BLKSZ $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" = "${C3}" || echo "file1 and file3 should match" +test "${C1}" = "${C4}" || echo "file1 and file4 should match" +test "${C2}" = "${C3}" || echo "file2 and file3 should match" +test "${C2}" = "${C4}" || echo "file2 and file4 should match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "fpunch files" +"$XFS_IO_PROG" -f -c "fpunch 0 $BLKSZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "fpunch $BLKSZ $BLKSZ" "$TESTDIR/file3" +"$XFS_IO_PROG" -f -c "fpunch $((BLKSZ * 2)) $BLKSZ" "$TESTDIR/file4" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" != "${C2}" || echo "file1 and file2 should not match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" != "${C4}" || echo "file3 and file4 should not match" + +echo "Compare against check files" +cmp -s "$TESTDIR/file2" "$TESTDIR/file2.chk" || echo "file2 and file2.chk do not match" +cmp -s "$TESTDIR/file3" "$TESTDIR/file3.chk" || echo "file3 and file3.chk do not match" +cmp -s "$TESTDIR/file4" "$TESTDIR/file4.chk" || echo "file4 and file4.chk do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/146.out b/tests/generic/146.out new file mode 100644 index 0000000..ead7e90 --- /dev/null +++ b/tests/generic/146.out @@ -0,0 +1,19 @@ +QA output created by 146 +Create the original files +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-146/file1 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-146/file2 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-146/file3 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-146/file4 +e263fae701bc40c23a3edb20aad5573e TEST_DIR/test-146/file2.chk +91722d7c8baf83f300a8dc35f1ffcce2 TEST_DIR/test-146/file3.chk +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-146/file4.chk +fpunch files +Compare files +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-146/file1 +e263fae701bc40c23a3edb20aad5573e TEST_DIR/test-146/file2 +91722d7c8baf83f300a8dc35f1ffcce2 TEST_DIR/test-146/file3 +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-146/file4 +e263fae701bc40c23a3edb20aad5573e TEST_DIR/test-146/file2.chk +91722d7c8baf83f300a8dc35f1ffcce2 TEST_DIR/test-146/file3.chk +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-146/file4.chk +Compare against check files diff --git a/tests/generic/147 b/tests/generic/147 new file mode 100755 index 0000000..c35bdd9 --- /dev/null +++ b/tests/generic/147 @@ -0,0 +1,139 @@ +#! /bin/bash +# FS QA Test No. 812 +# +# Ensure that insert range steps around reflinked ranges: +# - Create three reflink clones of a file +# - Insert into the start, middle, and end of the reflink range of each +# of the three files, respectively +# - Check that the reflinked areas are still there. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "finsert" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full" + +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file3" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file4" + +_pwrite_byte 0x00 0 $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x61 $BLKSZ $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 3)) $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x00 $BLKSZ $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x62 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 3)) $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 3)) $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" = "${C3}" || echo "file1 and file3 should match" +test "${C1}" = "${C4}" || echo "file1 and file4 should match" +test "${C2}" = "${C3}" || echo "file2 and file3 should match" +test "${C2}" = "${C4}" || echo "file2 and file4 should match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "finsert files" +"$XFS_IO_PROG" -f -c "finsert 0 $BLKSZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "finsert $BLKSZ $BLKSZ" "$TESTDIR/file3" +"$XFS_IO_PROG" -f -c "finsert $((BLKSZ * 2)) $BLKSZ" "$TESTDIR/file4" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" != "${C2}" || echo "file1 and file2 should not match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" != "${C4}" || echo "file3 and file4 should not match" + +echo "Compare against check files" +cmp -s "$TESTDIR/file2" "$TESTDIR/file2.chk" || echo "file2 and file2.chk do not match" +cmp -s "$TESTDIR/file3" "$TESTDIR/file3.chk" || echo "file3 and file3.chk do not match" +cmp -s "$TESTDIR/file4" "$TESTDIR/file4.chk" || echo "file4 and file4.chk do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/147.out b/tests/generic/147.out new file mode 100644 index 0000000..bee79c2 --- /dev/null +++ b/tests/generic/147.out @@ -0,0 +1,19 @@ +QA output created by 147 +Create the original files +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-147/file1 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-147/file2 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-147/file3 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-147/file4 +2b0921503c9f661b7690ac5b42f01f97 TEST_DIR/test-147/file2.chk +c424badbaad621c331a8ef213b78ac2a TEST_DIR/test-147/file3.chk +33b4940294a1d94bee813907d6105ff7 TEST_DIR/test-147/file4.chk +finsert files +Compare files +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-147/file1 +2b0921503c9f661b7690ac5b42f01f97 TEST_DIR/test-147/file2 +c424badbaad621c331a8ef213b78ac2a TEST_DIR/test-147/file3 +33b4940294a1d94bee813907d6105ff7 TEST_DIR/test-147/file4 +2b0921503c9f661b7690ac5b42f01f97 TEST_DIR/test-147/file2.chk +c424badbaad621c331a8ef213b78ac2a TEST_DIR/test-147/file3.chk +33b4940294a1d94bee813907d6105ff7 TEST_DIR/test-147/file4.chk +Compare against check files diff --git a/tests/generic/148 b/tests/generic/148 new file mode 100755 index 0000000..3d7a762 --- /dev/null +++ b/tests/generic/148 @@ -0,0 +1,116 @@ +#! /bin/bash +# FS QA Test No. 148 +# +# Ensure that truncating the last block in a reflinked file CoWs appropriately: +# - Create a file that doesn't end on a block boundary +# - Create two reflink clones of the file +# - Shorten one of the clones with truncate +# - Lengthen the other clone with truncate +# - Check that the reflinked areas are still there. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "truncate" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ 37 "$TESTDIR/file1" >> "$seqres.full" + +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file3" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ 34 "$TESTDIR/file2.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ 37 "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ + 37)) 3 "$TESTDIR/file3.chk" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" = "${C3}" || echo "file1 and file3 should match" +test "${C2}" = "${C3}" || echo "file2 and file3 should match" + +echo "truncate files" +"$XFS_IO_PROG" -f -c "truncate $((BLKSZ + 34))" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "truncate $((BLKSZ + 40))" "$TESTDIR/file3" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" + +test "${C1}" != "${C2}" || echo "file1 and file2 should not match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" + +echo "Compare against check files" +cmp -s "$TESTDIR/file2" "$TESTDIR/file2.chk" || echo "file2 and file2.chk do not match" +cmp -s "$TESTDIR/file3" "$TESTDIR/file3.chk" || echo "file3 and file3.chk do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/148.out b/tests/generic/148.out new file mode 100644 index 0000000..1896d95 --- /dev/null +++ b/tests/generic/148.out @@ -0,0 +1,15 @@ +QA output created by 148 +Create the original files +f924bdda449af63913cad4357e39301e TEST_DIR/test-148/file1 +f924bdda449af63913cad4357e39301e TEST_DIR/test-148/file2 +f924bdda449af63913cad4357e39301e TEST_DIR/test-148/file3 +16cb529abe447a9f203a3d5eb3433c8b TEST_DIR/test-148/file2.chk +6f042ad39f6c74f4b73936db89baa2e2 TEST_DIR/test-148/file3.chk +truncate files +Compare files +f924bdda449af63913cad4357e39301e TEST_DIR/test-148/file1 +16cb529abe447a9f203a3d5eb3433c8b TEST_DIR/test-148/file2 +6f042ad39f6c74f4b73936db89baa2e2 TEST_DIR/test-148/file3 +16cb529abe447a9f203a3d5eb3433c8b TEST_DIR/test-148/file2.chk +6f042ad39f6c74f4b73936db89baa2e2 TEST_DIR/test-148/file3.chk +Compare against check files diff --git a/tests/generic/149 b/tests/generic/149 new file mode 100755 index 0000000..44b5ae4 --- /dev/null +++ b/tests/generic/149 @@ -0,0 +1,136 @@ +#! /bin/bash +# FS QA Test No. 813 +# +# Ensure that zero-range steps around reflinked ranges: +# - Create three reflink clones of a file +# - Zero-range the start, middle, and end of the reflink range of each +# of the three files, respectively +# - Check that the reflinked areas are still there. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "fzero" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original files" +BLKSZ=65536 +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full" + +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file3" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file4" + +_pwrite_byte 0x00 0 $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file2.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x00 $BLKSZ $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" +_pwrite_byte 0x63 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file3.chk" >> "$seqres.full" + +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_pwrite_byte 0x00 $((BLKSZ * 2)) $BLKSZ "$TESTDIR/file4.chk" >> "$seqres.full" +_test_remount + +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" = "${C2}" || echo "file1 and file2 should match" +test "${C1}" = "${C3}" || echo "file1 and file3 should match" +test "${C1}" = "${C4}" || echo "file1 and file4 should match" +test "${C2}" = "${C3}" || echo "file2 and file3 should match" +test "${C2}" = "${C4}" || echo "file2 and file4 should match" +test "${C3}" = "${C4}" || echo "file3 and file4 should match" + +echo "fzero files" +"$XFS_IO_PROG" -f -c "fzero 0 $BLKSZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "fzero $BLKSZ $BLKSZ" "$TESTDIR/file3" +"$XFS_IO_PROG" -f -c "fzero $((BLKSZ * 2)) $BLKSZ" "$TESTDIR/file4" +_test_remount + +echo "Compare files" +md5sum "$TESTDIR/file1" | _filter_test_dir +md5sum "$TESTDIR/file2" | _filter_test_dir +md5sum "$TESTDIR/file3" | _filter_test_dir +md5sum "$TESTDIR/file4" | _filter_test_dir +md5sum "$TESTDIR/file2.chk" | _filter_test_dir +md5sum "$TESTDIR/file3.chk" | _filter_test_dir +md5sum "$TESTDIR/file4.chk" | _filter_test_dir + +C1="$(_md5_checksum "$TESTDIR/file1")" +C2="$(_md5_checksum "$TESTDIR/file2")" +C3="$(_md5_checksum "$TESTDIR/file3")" +C4="$(_md5_checksum "$TESTDIR/file4")" + +test "${C1}" != "${C2}" || echo "file1 and file2 should not match" +test "${C1}" != "${C3}" || echo "file1 and file3 should not match" +test "${C1}" != "${C4}" || echo "file1 and file4 should not match" +test "${C2}" != "${C3}" || echo "file2 and file3 should not match" +test "${C2}" != "${C4}" || echo "file2 and file4 should not match" +test "${C3}" != "${C4}" || echo "file3 and file4 should not match" + +echo "Compare against check files" +cmp -s "$TESTDIR/file2" "$TESTDIR/file2.chk" || echo "file2 and file2.chk do not match" +cmp -s "$TESTDIR/file3" "$TESTDIR/file3.chk" || echo "file3 and file3.chk do not match" +cmp -s "$TESTDIR/file4" "$TESTDIR/file4.chk" || echo "file4 and file4.chk do not match" + +# success, all done +status=0 +exit diff --git a/tests/generic/149.out b/tests/generic/149.out new file mode 100644 index 0000000..dc3ceda --- /dev/null +++ b/tests/generic/149.out @@ -0,0 +1,19 @@ +QA output created by 149 +Create the original files +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-149/file1 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-149/file2 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-149/file3 +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-149/file4 +e263fae701bc40c23a3edb20aad5573e TEST_DIR/test-149/file2.chk +91722d7c8baf83f300a8dc35f1ffcce2 TEST_DIR/test-149/file3.chk +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-149/file4.chk +fzero files +Compare files +856bb58abaf1ac79aa1aa45b7de7218b TEST_DIR/test-149/file1 +e263fae701bc40c23a3edb20aad5573e TEST_DIR/test-149/file2 +91722d7c8baf83f300a8dc35f1ffcce2 TEST_DIR/test-149/file3 +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-149/file4 +e263fae701bc40c23a3edb20aad5573e TEST_DIR/test-149/file2.chk +91722d7c8baf83f300a8dc35f1ffcce2 TEST_DIR/test-149/file3.chk +c931e8500c1a56a5b7369f7f1b971690 TEST_DIR/test-149/file4.chk +Compare against check files diff --git a/tests/generic/group b/tests/generic/group index 7b55707..477c52b 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -146,6 +146,12 @@ 141 rw auto quick 142 auto quick clone 143 auto quick clone +144 auto quick clone +145 auto quick clone +146 auto quick clone +147 auto quick clone +148 auto quick clone +149 auto quick clone 169 rw metadata auto quick 184 metadata auto quick 192 atime auto From darrick.wong@oracle.com Fri Nov 13 15:38:02 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B479F7F78 for ; Fri, 13 Nov 2015 15:38:01 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 17F3BAC008 for ; Fri, 13 Nov 2015 13:37:57 -0800 (PST) X-ASG-Debug-ID: 1447450673-04cb6c0cd442900001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id FR3YIzZVlShGgney (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:37:53 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLbVOk000460 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:37:31 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbVwW025259 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:37:31 GMT Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbV4F007418; Fri, 13 Nov 2015 21:37:31 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:37:30 -0800 Subject: [PATCH 07/12] reflink: test accuracy of free block counts From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 07/12] reflink: test accuracy of free block counts To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:37:29 -0800 Message-ID: <20151113213729.31124.57712.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447450673 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT, UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24370 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Check that the free block counts seem to be handled correctly in the reflink operation and subsequent attempts to rewrite reflinked copies. Signed-off-by: Darrick J. Wong --- tests/generic/150 | 78 +++++++++++++++++++++++++++++++ tests/generic/150.out | 4 ++ tests/generic/151 | 98 +++++++++++++++++++++++++++++++++++++++ tests/generic/151.out | 8 +++ tests/generic/152 | 103 +++++++++++++++++++++++++++++++++++++++++ tests/generic/152.out | 8 +++ tests/generic/153 | 102 ++++++++++++++++++++++++++++++++++++++++ tests/generic/153.out | 8 +++ tests/generic/154 | 110 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/154.out | 11 ++++ tests/generic/155 | 114 +++++++++++++++++++++++++++++++++++++++++++++ tests/generic/155.out | 11 ++++ tests/generic/156 | 124 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/156.out | 12 +++++ tests/generic/group | 7 +++ 15 files changed, 798 insertions(+) create mode 100755 tests/generic/150 create mode 100644 tests/generic/150.out create mode 100755 tests/generic/151 create mode 100644 tests/generic/151.out create mode 100755 tests/generic/152 create mode 100644 tests/generic/152.out create mode 100755 tests/generic/153 create mode 100644 tests/generic/153.out create mode 100755 tests/generic/154 create mode 100644 tests/generic/154.out create mode 100755 tests/generic/155 create mode 100644 tests/generic/155.out create mode 100755 tests/generic/156 create mode 100644 tests/generic/156.out diff --git a/tests/generic/150 b/tests/generic/150 new file mode 100755 index 0000000..3046e92 --- /dev/null +++ b/tests/generic/150 @@ -0,0 +1,78 @@ +#! /bin/bash +# FS QA Test No. 150 +# +# Ensure that reflinking a file N times doesn't eat a lot of blocks +# - Create a file and record fs block usage +# - Create some reflink copies +# - Compare fs block usage to before +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f $TESTDIR -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +NR=7 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +sync +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file.$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +_within_tolerance "free blocks after reflink" $FREE_BLOCKS1 $FREE_BLOCKS0 $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/150.out b/tests/generic/150.out new file mode 100644 index 0000000..94580a6 --- /dev/null +++ b/tests/generic/150.out @@ -0,0 +1,4 @@ +QA output created by 150 +Create the original file blocks +Create the reflink copies +free blocks after reflink is in range diff --git a/tests/generic/151 b/tests/generic/151 new file mode 100755 index 0000000..c42ca1d --- /dev/null +++ b/tests/generic/151 @@ -0,0 +1,98 @@ +#! /bin/bash +# FS QA Test No. 151 +# +# Ensure that deleting all copies of a file reflinked N times releases the blocks +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - Delete some copies of the file +# - Record fs block usage (2) +# - Delete all copies of the file +# - Compare fs block usage to (2), (1), and (0) +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=7 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +sync + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file.$i" +done +_cp_reflink "$TESTDIR/file1" "$TESTDIR/survivor" +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +echo "Delete most of the files" +rm -rf "$TESTDIR"/file* +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +echo "Delete all the files" +rm -rf "$TESTDIR"/* +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 + +_within_tolerance "free blocks after reflink" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after deleting some reflink copies" $FREE_BLOCKS2 $FREE_BLOCKS1 $MARGIN -v + +_within_tolerance "free blocks after deleting all copies" $FREE_BLOCKS3 $FREE_BLOCKS0 $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/151.out b/tests/generic/151.out new file mode 100644 index 0000000..214be54 --- /dev/null +++ b/tests/generic/151.out @@ -0,0 +1,8 @@ +QA output created by 151 +Create the original file blocks +Create the reflink copies +Delete most of the files +Delete all the files +free blocks after reflink is in range +free blocks after deleting some reflink copies is in range +free blocks after deleting all copies is in range diff --git a/tests/generic/152 b/tests/generic/152 new file mode 100755 index 0000000..95ffe40 --- /dev/null +++ b/tests/generic/152 @@ -0,0 +1,103 @@ +#! /bin/bash +# FS QA Test No. 152 +# +# Ensure that punching all copies of a file reflinked N times releases the blocks +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - Punch some blocks of the copies +# - Record fs block usage (2) +# - Punch all blocks of the copies +# - Compare fs block usage to (2), (1), and (0) +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "fpunch" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +sync + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +echo "Punch most of the blocks" +"$XFS_IO_PROG" -f -c "fpunch 0 $SZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "fpunch 0 $((SZ / 2))" "$TESTDIR/file3" +"$XFS_IO_PROG" -f -c "fpunch $((SZ / 2)) $((SZ / 2))" "$TESTDIR/file4" +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +echo "Punch all the files" +for i in `seq 2 $NR`; do + "$XFS_IO_PROG" -f -c "fpunch 0 $SZ" "$TESTDIR/file$i" +done +"$XFS_IO_PROG" -f -c "fpunch 0 $SZ" "$TESTDIR/file1" +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 + +_within_tolerance "free blocks after reflink" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after punching some reflink copies" $FREE_BLOCKS2 $FREE_BLOCKS1 $MARGIN -v + +_within_tolerance "free blocks after punching all copies" $FREE_BLOCKS3 $FREE_BLOCKS0 $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/152.out b/tests/generic/152.out new file mode 100644 index 0000000..10b2003 --- /dev/null +++ b/tests/generic/152.out @@ -0,0 +1,8 @@ +QA output created by 152 +Create the original file blocks +Create the reflink copies +Punch most of the blocks +Punch all the files +free blocks after reflink is in range +free blocks after punching some reflink copies is in range +free blocks after punching all copies is in range diff --git a/tests/generic/153 b/tests/generic/153 new file mode 100755 index 0000000..2deee20 --- /dev/null +++ b/tests/generic/153 @@ -0,0 +1,102 @@ +#! /bin/bash +# FS QA Test No. 153 +# +# Ensure that collapse-range on all copies of a file reflinked N times releases the blocks +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - Collapse-range some blocks of the copies +# - Record fs block usage (2) +# - Truncate all blocks of the copies +# - Compare fs block usage to (2), (1), and (0) +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "fcollapse" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +echo "Collapse most of the blocks" +"$XFS_IO_PROG" -f -c "fcollapse 0 $(((BLKS - 1) * BLKSZ))" $TESTDIR/file2 +"$XFS_IO_PROG" -f -c "fcollapse 0 $((SZ / 2))" $TESTDIR/file3 +"$XFS_IO_PROG" -f -c "fcollapse $((SZ / 2)) $(( ((BLKS / 2) - 1) * BLKSZ))" $TESTDIR/file4 +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +echo "Collpase nearly all the files" +"$XFS_IO_PROG" -f -c "fcollapse 0 $(( ((BLKS / 2) - 1) * BLKSZ))" $TESTDIR/file3 +"$XFS_IO_PROG" -f -c "fcollapse 0 $((SZ / 2))" $TESTDIR/file4 +"$XFS_IO_PROG" -f -c "fcollapse 0 $(( (BLKS - 1) * BLKSZ))" $TESTDIR/file1 +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 + +_within_tolerance "free blocks after reflink" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after fcollapsing some reflink copies" $FREE_BLOCKS2 $FREE_BLOCKS1 $MARGIN -v + +_within_tolerance "free blocks after fcollapsing all copies" $FREE_BLOCKS3 $FREE_BLOCKS0 $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/153.out b/tests/generic/153.out new file mode 100644 index 0000000..c9ff37c --- /dev/null +++ b/tests/generic/153.out @@ -0,0 +1,8 @@ +QA output created by 153 +Create the original file blocks +Create the reflink copies +Collapse most of the blocks +Collpase nearly all the files +free blocks after reflink is in range +free blocks after fcollapsing some reflink copies is in range +free blocks after fcollapsing all copies is in range diff --git a/tests/generic/154 b/tests/generic/154 new file mode 100755 index 0000000..173b981 --- /dev/null +++ b/tests/generic/154 @@ -0,0 +1,110 @@ +#! /bin/bash +# FS QA Test No. 154 +# +# Ensure that CoW on all copies of a file reflinked N times increases block count +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - CoW some blocks of the copies +# - Record fs block usage (2) +# - CoW all the rest of the blocks of the copies +# - Compare fs block usage to (2), (1), and (0) +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename $0` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=4 +SZ=$((BLKS * BLKSZ)) +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite some of the blocks" +_pwrite_byte 0x62 0 $SZ "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x63 0 $((SZ / 2)) "$TESTDIR/file3" >> "$seqres.full" +_pwrite_byte 0x64 $((SZ / 2)) $((SZ / 2)) "$TESTDIR/file4" >> "$seqres.full" +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite all the files" +_pwrite_byte 0x62 0 $SZ "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x63 0 $SZ "$TESTDIR/file3" >> "$seqres.full" +_pwrite_byte 0x64 0 $SZ "$TESTDIR/file4" >> "$seqres.full" +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite the original file" +_pwrite_byte 0x65 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount +FREE_BLOCKS4=$(stat -f "$TESTDIR" -c '%f') +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 $FREE_BLOCKS4 + +_within_tolerance "free blocks after reflinking" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after partially CoWing some copies" $FREE_BLOCKS2 $((FREE_BLOCKS1 - (2 * BLKS))) $MARGIN -v + +_within_tolerance "free blocks after CoWing all copies" $FREE_BLOCKS3 $((FREE_BLOCKS2 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after overwriting original" $FREE_BLOCKS4 $FREE_BLOCKS3 $MARGIN -v + +_within_tolerance "free blocks after all tests" $FREE_BLOCKS4 $((FREE_BLOCKS0 - (4 * BLKS))) $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/154.out b/tests/generic/154.out new file mode 100644 index 0000000..726b819 --- /dev/null +++ b/tests/generic/154.out @@ -0,0 +1,11 @@ +QA output created by 154 +Create the original file blocks +Create the reflink copies +Rewrite some of the blocks +Rewrite all the files +Rewrite the original file +free blocks after reflinking is in range +free blocks after partially CoWing some copies is in range +free blocks after CoWing all copies is in range +free blocks after overwriting original is in range +free blocks after all tests is in range diff --git a/tests/generic/155 b/tests/generic/155 new file mode 100755 index 0000000..2551295 --- /dev/null +++ b/tests/generic/155 @@ -0,0 +1,114 @@ +#! /bin/bash +# FS QA Test No. 155 +# +# Ensure that CoW on all copies of a file reflinked N times increases block count +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - CoW some blocks of the copies +# - Record fs block usage (2) +# - CoW all the rest of the blocks of the copies +# - Compare fs block usage to (2), (1), and (0) +# +# The main difference from 834 is that we use zero range, directio, and +# mmap to mix things up a bit. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "fzero" + +rm -f "$seqres.full" + +TESTDIR=$TEST_DIR/test-$seq +rm -rf $TESTDIR +mkdir $TESTDIR + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite some of the blocks" +"$XFS_IO_PROG" -f -c "fzero 0 $SZ" "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x63 0 $((SZ / 2)) "$TESTDIR/file3" -d >> "$seqres.full" +_mwrite_byte 0x64 $((SZ / 2)) $((SZ / 2)) $SZ "$TESTDIR/file4" >> "$seqres.full" +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite all the files" +_pwrite_byte 0x62 0 $SZ "$TESTDIR/file2" -d >> "$seqres.full" +_mwrite_byte 0x63 0 $SZ $SZ "$TESTDIR/file3" >> "$seqres.full" +"$XFS_IO_PROG" -f -c "fzero 0 $SZ" $TESTDIR/file4 >> "$seqres.full" +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite the original file" +_pwrite_byte 0x65 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount +FREE_BLOCKS4=$(stat -f "$TESTDIR" -c '%f') +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 $FREE_BLOCKS4 + +_within_tolerance "free blocks after reflinking" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after partially CoWing some copies" $FREE_BLOCKS2 $((FREE_BLOCKS1 - (2 * BLKS))) $MARGIN -v + +_within_tolerance "free blocks after CoWing all copies" $FREE_BLOCKS3 $((FREE_BLOCKS2 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after overwriting original" $FREE_BLOCKS4 $FREE_BLOCKS3 $MARGIN -v + +_within_tolerance "free blocks after all tests" $FREE_BLOCKS4 $((FREE_BLOCKS0 - (4 * BLKS))) $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/155.out b/tests/generic/155.out new file mode 100644 index 0000000..efb8faf --- /dev/null +++ b/tests/generic/155.out @@ -0,0 +1,11 @@ +QA output created by 155 +Create the original file blocks +Create the reflink copies +Rewrite some of the blocks +Rewrite all the files +Rewrite the original file +free blocks after reflinking is in range +free blocks after partially CoWing some copies is in range +free blocks after CoWing all copies is in range +free blocks after overwriting original is in range +free blocks after all tests is in range diff --git a/tests/generic/156 b/tests/generic/156 new file mode 100755 index 0000000..78b7e8c --- /dev/null +++ b/tests/generic/156 @@ -0,0 +1,124 @@ +#! /bin/bash +# FS QA Test No. 156 +# +# Ensure that fallocate on reflinked files actually CoWs the shared blocks. +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - funshare half of one of the copies +# - Record fs block usage (2) +# - funshare all of the copies +# - Record fs block usage (3) +# - rewrite the original file +# - Record fs block usage (4) +# - Compare fs block usage of 0-4 to ensure that block usage behaves as +# we expect. +# +# "funshare" refers to fallocate copy-on-writing the shared blocks +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +if [ $FSTYP = "btrfs" ]; then + _notrun "btrfs doesn't handle unshare on fallocate" +fi + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_cp_reflink +_require_xfs_io_command "falloc" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +echo "funshare part of a file" +"$XFS_IO_PROG" -f -c "falloc 0 $((SZ / 2))" "$TESTDIR/file2" +_test_remount + +echo "funshare some of the copies" +"$XFS_IO_PROG" -f -c "falloc 0 $SZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "falloc 0 $SZ" "$TESTDIR/file3" +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +echo "funshare the rest of the files" +"$XFS_IO_PROG" -f -c "falloc 0 $SZ" "$TESTDIR/file4" +"$XFS_IO_PROG" -f -c "falloc 0 $SZ" "$TESTDIR/file1" +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') + +echo "Rewrite the original file" +_pwrite_byte 0x65 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount +FREE_BLOCKS4=$(stat -f "$TESTDIR" -c '%f') +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 $FREE_BLOCKS4 + +_within_tolerance "free blocks after reflinking" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after nocow'ing some copies" $FREE_BLOCKS2 $((FREE_BLOCKS1 - (2 * BLKS))) $MARGIN -v + +_within_tolerance "free blocks after nocow'ing all copies" $FREE_BLOCKS3 $((FREE_BLOCKS2 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after overwriting original" $FREE_BLOCKS4 $FREE_BLOCKS3 $MARGIN -v + +_within_tolerance "free blocks after all tests" $FREE_BLOCKS4 $((FREE_BLOCKS0 - (4 * BLKS))) $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/generic/156.out b/tests/generic/156.out new file mode 100644 index 0000000..d6fdc81 --- /dev/null +++ b/tests/generic/156.out @@ -0,0 +1,12 @@ +QA output created by 156 +Create the original file blocks +Create the reflink copies +funshare part of a file +funshare some of the copies +funshare the rest of the files +Rewrite the original file +free blocks after reflinking is in range +free blocks after nocow'ing some copies is in range +free blocks after nocow'ing all copies is in range +free blocks after overwriting original is in range +free blocks after all tests is in range diff --git a/tests/generic/group b/tests/generic/group index 477c52b..3141ae5 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -152,6 +152,13 @@ 147 auto quick clone 148 auto quick clone 149 auto quick clone +150 auto quick clone +151 auto quick clone +152 auto quick clone +153 auto quick clone +154 auto quick clone +155 auto quick clone +156 auto quick clone 169 rw metadata auto quick 184 metadata auto quick 192 atime auto From darrick.wong@oracle.com Fri Nov 13 15:38:06 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 82F0A7F5E for ; Fri, 13 Nov 2015 15:38:06 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 664F4304032 for ; Fri, 13 Nov 2015 13:38:06 -0800 (PST) X-ASG-Debug-ID: 1447450683-04cbb0605e47ec0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id iwEpk3iAREIWg8Kk (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:38:03 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLbcYR000552 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:37:38 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbbYP010616 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:37:37 GMT Received: from abhmp0007.oracle.com (abhmp0007.oracle.com [141.146.116.13]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbbvD026585; Fri, 13 Nov 2015 21:37:37 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:37:37 -0800 Subject: [PATCH 08/12] reflink: test error conditions due to bad inputs From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 08/12] reflink: test error conditions due to bad inputs To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:37:36 -0800 Message-ID: <20151113213736.31124.61530.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447450683 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24370 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Check that we can feed bad inputs to reflink/dedupe and it'll reject them. Signed-off-by: Darrick J. Wong --- tests/generic/157 | 122 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/157.out | 25 ++++++++++ tests/generic/158 | 123 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/158.out | 24 ++++++++++ tests/generic/159 | 74 +++++++++++++++++++++++++++++ tests/generic/159.out | 5 ++ tests/generic/160 | 74 +++++++++++++++++++++++++++++ tests/generic/160.out | 5 ++ tests/generic/group | 4 ++ 9 files changed, 456 insertions(+) create mode 100755 tests/generic/157 create mode 100644 tests/generic/157.out create mode 100755 tests/generic/158 create mode 100644 tests/generic/158.out create mode 100755 tests/generic/159 create mode 100755 tests/generic/159.out create mode 100755 tests/generic/160 create mode 100755 tests/generic/160.out diff --git a/tests/generic/157 b/tests/generic/157 new file mode 100755 index 0000000..a43fb0d --- /dev/null +++ b/tests/generic/157 @@ -0,0 +1,122 @@ +#! /bin/bash +# FS QA Test No. 157 +# +# Check that various invalid reflink scenarios are rejected. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_scratch_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR1="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR1" +mkdir "$TESTDIR1" + +TESTDIR2=$SCRATCH_MNT/test-$seq +rm -rf "$TESTDIR2" +mkdir "$TESTDIR2" + +echo "Create the original files" +BLKSZ="$(stat -f $TESTDIR1 -c '%S')" +BLKS=1000 +MARGIN=50 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f $TESTDIR1 -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file2" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR2/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR2/file2" >> "$seqres.full" +mkdir "$TESTDIR1/dir1" +seq 1 $((2 * BLKSZ / 250)) | while read f; do + touch "$TESTDIR1/dir1/$f" +done +mknod "$TESTDIR1/dev1" b 8 0 +mkfifo "$TESTDIR1/fifo1" +sync + +echo "Try cross-device reflink" +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR2/file1" 0 $BLKSZ + +echo "Try unaligned reflink" +_reflink_range "$TESTDIR1/file1" 37 "$TESTDIR1/file1" 59 23 + +echo "Try overlapping reflink" +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/file1" 1 $((BLKSZ * 2)) + +echo "Try reflink past EOF" +_reflink_range "$TESTDIR1/file1" $(( (BLKS + 10) * BLKSZ)) "$TESTDIR1/file1" 0 $BLKSZ + +echo "Try to reflink a dir" +_reflink_range "$TESTDIR1/dir1" 0 "$TESTDIR1/file2" 0 $BLKSZ + +echo "Try to reflink a device" +_reflink_range "$TESTDIR1/dev1" 0 "$TESTDIR1/file2" 0 $BLKSZ + +echo "Try to reflink to a dir" +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/dir1" 0 $BLKSZ + +echo "Try to reflink to a device" +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/dev1" 0 $BLKSZ + +echo "Try to reflink to a fifo" +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/fifo1" 0 $BLKSZ -n + +echo "Try to reflink an append-only file" +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/file3" 0 $BLKSZ -a + +echo "Reflink two files" +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/file2" 0 $BLKSZ >> "$seqres.full" +_reflink_range "$TESTDIR2/file1" 0 "$TESTDIR2/file2" 0 $BLKSZ >> "$seqres.full" + +echo "Check scratch fs" +umount $SCRATCH_MNT +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/157.out b/tests/generic/157.out new file mode 100644 index 0000000..177e7f8 --- /dev/null +++ b/tests/generic/157.out @@ -0,0 +1,25 @@ +QA output created by 157 +Format and mount +Create the original files +Try cross-device reflink +XFS_IOC_CLONE_RANGE: Invalid cross-device link +Try unaligned reflink +XFS_IOC_CLONE_RANGE: Invalid argument +Try overlapping reflink +XFS_IOC_CLONE_RANGE: Invalid argument +Try reflink past EOF +XFS_IOC_CLONE_RANGE: Invalid argument +Try to reflink a dir +XFS_IOC_CLONE_RANGE: Is a directory +Try to reflink a device +XFS_IOC_CLONE_RANGE: Invalid argument +Try to reflink to a dir +/mnt/test-157/dir1: Is a directory +Try to reflink to a device +XFS_IOC_CLONE_RANGE: Operation not supported +Try to reflink to a fifo +XFS_IOC_CLONE_RANGE: Operation not supported +Try to reflink an append-only file +XFS_IOC_CLONE_RANGE: Bad file descriptor +Reflink two files +Check scratch fs diff --git a/tests/generic/158 b/tests/generic/158 new file mode 100755 index 0000000..a499b21 --- /dev/null +++ b/tests/generic/158 @@ -0,0 +1,123 @@ +#! /bin/bash +# FS QA Test No. 158 +# +# Check that various invalid dedupe scenarios are rejected. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_dedupe +_require_scratch_dedupe + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR1="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR1" +mkdir "$TESTDIR1" + +TESTDIR2=$SCRATCH_MNT/test-$seq +rm -rf "$TESTDIR2" +mkdir "$TESTDIR2" + +echo "Create the original files" +BLKSZ="$(stat -f $TESTDIR1 -c '%S')" +BLKS=1000 +MARGIN=50 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f $TESTDIR1 -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file2" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file3" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR2/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR2/file2" >> "$seqres.full" +mkdir "$TESTDIR1/dir1" +seq 1 $((2 * BLKSZ / 250)) | while read f; do + touch "$TESTDIR1/dir1/$f" +done +mknod "$TESTDIR1/dev1" b 8 0 +mkfifo "$TESTDIR1/fifo1" +sync + +echo "Try cross-device dedupe" +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR2/file1" 0 $BLKSZ + +echo "Try unaligned dedupe" +_dedupe_range "$TESTDIR1/file1" 37 "$TESTDIR1/file1" 59 23 + +echo "Try overlapping dedupe" +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/file1" 1 $((BLKSZ * 2)) + +echo "Try dedupe past EOF" +_dedupe_range "$TESTDIR1/file1" $(( (BLKS + 10) * BLKSZ)) "$TESTDIR1/file1" 0 $BLKSZ + +echo "Try to dedupe a dir" +_dedupe_range "$TESTDIR1/dir1" 0 "$TESTDIR1/file2" 0 $BLKSZ + +echo "Try to dedupe a device" +_dedupe_range "$TESTDIR1/dev1" 0 "$TESTDIR1/file2" 0 $BLKSZ + +echo "Try to dedupe to a dir" +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/dir1" 0 $BLKSZ + +echo "Try to dedupe to a device" +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/dev1" 0 $BLKSZ + +echo "Try to dedupe to a fifo" +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/fifo1" 0 $BLKSZ -n + +echo "Try to dedupe an append-only file" +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/file3" 0 $BLKSZ -a >> "$seqres.full" + +echo "Dedupe two files" +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/file2" 0 $BLKSZ >> "$seqres.full" +_dedupe_range "$TESTDIR2/file1" 0 "$TESTDIR2/file2" 0 $BLKSZ >> "$seqres.full" + +echo "Check scratch fs" +umount $SCRATCH_MNT +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/158.out b/tests/generic/158.out new file mode 100644 index 0000000..36a3f1f --- /dev/null +++ b/tests/generic/158.out @@ -0,0 +1,24 @@ +QA output created by 158 +Format and mount +Create the original files +Try cross-device dedupe +dedupe: Invalid cross-device link +Try unaligned dedupe +dedupe: Invalid argument +Try overlapping dedupe +dedupe: Invalid argument +Try dedupe past EOF +dedupe: Invalid argument +Try to dedupe a dir +XFS_IOC_FILE_EXTENT_SAME: Is a directory +Try to dedupe a device +XFS_IOC_FILE_EXTENT_SAME: Permission denied +Try to dedupe to a dir +/mnt/test-158/dir1: Is a directory +Try to dedupe to a device +dedupe: Permission denied +Try to dedupe to a fifo +dedupe: Permission denied +Try to dedupe an append-only file +Dedupe two files +Check scratch fs diff --git a/tests/generic/159 b/tests/generic/159 new file mode 100755 index 0000000..7944267 --- /dev/null +++ b/tests/generic/159 @@ -0,0 +1,74 @@ +#! /bin/bash +# FS QA Test No. 159 +# +# Check that we can't reflink immutable files +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + # rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_lsattr +_require_test_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +TESTDIR1="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR1" +mkdir "$TESTDIR1" + +echo "Create the original files" +BLKSZ="$(stat -f $TESTDIR1 -c '%S')" +BLKS=1000 +MARGIN=50 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f $TESTDIR1 -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file2" >> "$seqres.full" +sync + +echo "Try reflink on immutable files" +$CHATTR_PROG +i $TESTDIR1/file1 $TESTDIR1/file2 +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/file2" 0 $BLKSZ 2>&1 | _filter_test_dir +$CHATTR_PROG -i $TESTDIR1/file1 $TESTDIR1/file2 + +# success, all done +status=0 +exit diff --git a/tests/generic/159.out b/tests/generic/159.out new file mode 100755 index 0000000..92fe33a --- /dev/null +++ b/tests/generic/159.out @@ -0,0 +1,5 @@ +QA output created by 159 +Format and mount +Create the original files +Try reflink on immutable files +TEST_DIR/test-159/file2: Permission denied diff --git a/tests/generic/160 b/tests/generic/160 new file mode 100755 index 0000000..e8c43df --- /dev/null +++ b/tests/generic/160 @@ -0,0 +1,74 @@ +#! /bin/bash +# FS QA Test No. 160 +# +# Check that we can't dedupe immutable files +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + # rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_lsattr +_require_test_dedupe + +rm -f "$seqres.full" + +echo "Format and mount" +TESTDIR1="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR1" +mkdir "$TESTDIR1" + +echo "Create the original files" +BLKSZ="$(stat -f $TESTDIR1 -c '%S')" +BLKS=1000 +MARGIN=50 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f $TESTDIR1 -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $SZ "$TESTDIR1/file2" >> "$seqres.full" +sync + +echo "Try dedupe on immutable files" +$CHATTR_PROG +i $TESTDIR1/file1 $TESTDIR1/file2 +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/file2" 0 $BLKSZ 2>&1 | _filter_test_dir +$CHATTR_PROG -i $TESTDIR1/file1 $TESTDIR1/file2 + +# success, all done +status=0 +exit diff --git a/tests/generic/160.out b/tests/generic/160.out new file mode 100755 index 0000000..a999a9c --- /dev/null +++ b/tests/generic/160.out @@ -0,0 +1,5 @@ +QA output created by 160 +Format and mount +Create the original files +Try dedupe on immutable files +TEST_DIR/test-160/file2: Permission denied diff --git a/tests/generic/group b/tests/generic/group index 3141ae5..0a20421 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -159,6 +159,10 @@ 154 auto quick clone 155 auto quick clone 156 auto quick clone +157 auto quick clone +158 auto quick clone +159 auto quick clone +160 auto quick clone 169 rw metadata auto quick 184 metadata auto quick 192 atime auto From darrick.wong@oracle.com Fri Nov 13 15:38:13 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 01CC27F5E for ; Fri, 13 Nov 2015 15:38:13 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id BA5F1304039 for ; Fri, 13 Nov 2015 13:38:12 -0800 (PST) X-ASG-Debug-ID: 1447450687-04bdf07f0846ae0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id qcKm0ffJJHoXUTTh (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:38:08 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLbj8K000626 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:37:46 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbjxl011328 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:37:45 GMT Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbiNE002463; Fri, 13 Nov 2015 21:37:44 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:37:43 -0800 Subject: [PATCH 09/12] xfs: test xfs-specific reflink pieces From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 09/12] xfs: test xfs-specific reflink pieces To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:37:42 -0800 Message-ID: <20151113213742.31124.28249.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447450688 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24371 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Check that the various XFS tools still work properly on reflinked XFSes. Signed-off-by: Darrick J. Wong --- tests/xfs/127 | 79 ++++++++++++++++++++++++++++ tests/xfs/127.out | 6 ++ tests/xfs/128 | 149 +++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/128.out | 27 ++++++++++ tests/xfs/129 | 87 +++++++++++++++++++++++++++++++ tests/xfs/129.out | 6 ++ tests/xfs/130 | 109 +++++++++++++++++++++++++++++++++++++++ tests/xfs/130.out | 13 +++++ tests/xfs/131 | 76 +++++++++++++++++++++++++++ tests/xfs/131.out | 6 ++ tests/xfs/132 | 130 ++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/132.out | 32 +++++++++++ tests/xfs/group | 6 ++ 13 files changed, 726 insertions(+) create mode 100755 tests/xfs/127 create mode 100644 tests/xfs/127.out create mode 100755 tests/xfs/128 create mode 100644 tests/xfs/128.out create mode 100755 tests/xfs/129 create mode 100644 tests/xfs/129.out create mode 100755 tests/xfs/130 create mode 100644 tests/xfs/130.out create mode 100755 tests/xfs/131 create mode 100644 tests/xfs/131.out create mode 100755 tests/xfs/132 create mode 100644 tests/xfs/132.out diff --git a/tests/xfs/127 b/tests/xfs/127 new file mode 100755 index 0000000..61301de --- /dev/null +++ b/tests/xfs/127 @@ -0,0 +1,79 @@ +#! /bin/bash +# FS QA Test No. 127 +# +# Tests xfs_growfs on a reflinked filesystem +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f "$tmp".* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs -d size=$((2 * 4096 * 4096)) -l size=4194304 > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file and reflink to copy1, copy2" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +_pwrite_byte 0x61 0 $((BLKSZ * 14 + 71)) "$TESTDIR/original" >> "$seqres.full" +_cp_reflink "$TESTDIR/original" "$TESTDIR/copy1" +_cp_reflink "$TESTDIR/copy1" "$TESTDIR/copy2" + +echo "Grow fs" +"$XFS_GROWFS_PROG" "$SCRATCH_MNT" 2>&1 | _filter_growfs >> "$seqres.full" +_scratch_remount + +echo "Create more reflink copies" +_cp_reflink "$TESTDIR/original" "$TESTDIR/copy3" + +xfs_info "$SCRATCH_MNT" >> "$seqres.full" + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/xfs/127.out b/tests/xfs/127.out new file mode 100644 index 0000000..e4e76e2 --- /dev/null +++ b/tests/xfs/127.out @@ -0,0 +1,6 @@ +QA output created by 127 +Format and mount +Create the original file and reflink to copy1, copy2 +Grow fs +Create more reflink copies +Check scratch fs diff --git a/tests/xfs/128 b/tests/xfs/128 new file mode 100755 index 0000000..49652cb --- /dev/null +++ b/tests/xfs/128 @@ -0,0 +1,149 @@ +#! /bin/bash +# FS QA Test No. 128 +# +# Ensure that xfs_fsr un-reflinks files while defragmenting +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f "$tmp".* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_test_lsattr +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') + +echo "Create the original file and reflink to file2, file3" +BLKS=2000 +MARGIN=100 +BLKSZ=65536 +REAL_BLKSZ="$(stat -f $TESTDIR -c '%S')" +BLKSZ_FACTOR=$((BLKSZ / REAL_BLKSZ)) +_pwrite_byte 0x61 0 $((BLKS * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_cp_reflink "$TESTDIR/file2" "$TESTDIR/file3" +_cp_reflink "$TESTDIR/file3" "$TESTDIR/file4" +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') + +md5sum "$TESTDIR/file1" | _filter_scratch +md5sum "$TESTDIR/file2" | _filter_scratch +md5sum "$TESTDIR/file3" | _filter_scratch +md5sum "$TESTDIR/file4" | _filter_scratch + +C01=$(_md5_checksum "$TESTDIR/file1") +C02=$(_md5_checksum "$TESTDIR/file2") +C03=$(_md5_checksum "$TESTDIR/file3") +C04=$(_md5_checksum "$TESTDIR/file4") + +echo "CoW the reflink copies" +_pwrite_byte 0x62 $BLKSZ $BLKSZ "$TESTDIR/file2" >> "$seqres.full" +_pwrite_byte 0x63 $(( BLKSZ * (BLKS - 1) )) $BLKSZ "$TESTDIR/file3" >> "$seqres.full" +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') + +md5sum "$TESTDIR/file1" | _filter_scratch +md5sum "$TESTDIR/file2" | _filter_scratch +md5sum "$TESTDIR/file3" | _filter_scratch +md5sum "$TESTDIR/file4" | _filter_scratch + +C11=$(_md5_checksum "$TESTDIR/file1") +C12=$(_md5_checksum "$TESTDIR/file2") +C13=$(_md5_checksum "$TESTDIR/file3") +C14=$(_md5_checksum "$TESTDIR/file4") + +echo "Defragment" +lsattr -l "$TESTDIR/" | _filter_scratch +xfs_fsr -v -d "$TESTDIR/file1" >> "$seqres.full" +xfs_fsr -v -d "$TESTDIR/file2" >> "$seqres.full" # fsr probably breaks the link +xfs_fsr -v -d "$TESTDIR/file3" >> "$seqres.full" # fsr probably breaks the link +xfs_fsr -v -d "$TESTDIR/file4" >> "$seqres.full" # fsr probably ignores this file +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') + +md5sum "$TESTDIR/file1" | _filter_scratch +md5sum "$TESTDIR/file2" | _filter_scratch +md5sum "$TESTDIR/file3" | _filter_scratch +md5sum "$TESTDIR/file4" | _filter_scratch + +C21=$(_md5_checksum "$TESTDIR/file1") +C22=$(_md5_checksum "$TESTDIR/file2") +C23=$(_md5_checksum "$TESTDIR/file3") +C24=$(_md5_checksum "$TESTDIR/file4") + +echo "Check files" +test $C01 = $C02 || echo "Files 1-2 do not match" +test $C01 = $C03 || echo "Files 1-3 do not match" +test $C01 = $C04 || echo "Files 1-4 do not match" +test $C02 = $C03 || echo "Files 2-3 do not match" +test $C02 = $C04 || echo "Files 2-4 do not match" +test $C03 = $C04 || echo "Files 3-4 do not match" + +test $C01 = $C11 || echo "File1 should not be different after CoW" +test $C02 != $C12 || echo "File2 should be different after CoW" +test $C03 != $C13 || echo "File3 should be different after CoW" +test $C04 = $C14 || echo "File4 should not be different after CoW" + +test $C11 = $C21 || echo "File1 changed by defrag" +test $C12 = $C22 || echo "File2 changed by defrag" +test $C13 = $C23 || echo "File3 changed by defrag" +test $C14 = $C24 || echo "File4 changed by defrag" + +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 + +_within_tolerance "free blocks after creating some reflink copies" $FREE_BLOCKS1 $((FREE_BLOCKS0 - (BLKS * BLKSZ_FACTOR) )) $MARGIN -v +_within_tolerance "free blocks after CoW some reflink copies" $FREE_BLOCKS2 $((FREE_BLOCKS1 - 2)) $MARGIN -v +_within_tolerance "free blocks after defragging all reflink copies" $FREE_BLOCKS3 $((FREE_BLOCKS2 - (BLKS * 2 * BLKSZ_FACTOR))) $MARGIN -v +_within_tolerance "free blocks after all tests" $FREE_BLOCKS3 $((FREE_BLOCKS0 - (BLKS * 3 * BLKSZ_FACTOR))) $MARGIN -v + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/xfs/128.out b/tests/xfs/128.out new file mode 100644 index 0000000..7e72dcd --- /dev/null +++ b/tests/xfs/128.out @@ -0,0 +1,27 @@ +QA output created by 128 +Format and mount +Create the original file and reflink to file2, file3 +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-128/file1 +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-128/file2 +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-128/file3 +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-128/file4 +CoW the reflink copies +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-128/file1 +c650f1cf6c9f07b22e3e21ec7d49ded5 SCRATCH_MNT/test-128/file2 +56ed2f712c91e035adeeb26ed105a982 SCRATCH_MNT/test-128/file3 +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-128/file4 +Defragment +SCRATCH_MNT/test-128/file1 --- +SCRATCH_MNT/test-128/file2 --- +SCRATCH_MNT/test-128/file3 --- +SCRATCH_MNT/test-128/file4 --- +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-128/file1 +c650f1cf6c9f07b22e3e21ec7d49ded5 SCRATCH_MNT/test-128/file2 +56ed2f712c91e035adeeb26ed105a982 SCRATCH_MNT/test-128/file3 +b81534f439aac5c34ce3ed60a03eba70 SCRATCH_MNT/test-128/file4 +Check files +free blocks after creating some reflink copies is in range +free blocks after CoW some reflink copies is in range +free blocks after defragging all reflink copies is in range +free blocks after all tests is in range +Check scratch fs diff --git a/tests/xfs/129 b/tests/xfs/129 new file mode 100755 index 0000000..6279d69 --- /dev/null +++ b/tests/xfs/129 @@ -0,0 +1,87 @@ +#! /bin/bash +# FS QA Test No. 129 +# +# Ensure that we can create enough distinct reflink entries to force creation +# of a multi-level refcount btree, and that metadump will successfully copy +# said block. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + umount "$SCRATCH_MNT" > /dev/null 2>&1 + rm -rf "$tmp".* "$TESTDIR" "$METADUMP_FILE" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_scratch_reflink + +rm -f "$seqres.full" + +_scratch_mkfs >/dev/null 2>&1 +_scratch_mount + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" +METADUMP_FILE="$TEST_DIR/${seq}_metadump" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +NR_BLKS=$((4 * BLKSZ / 12)) +_pwrite_byte 0x61 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/file1" >> "$seqres.full" + +echo "Reflink every other block" +seq 1 $((NR_BLKS / 2)) | while read nr; do + _reflink_range "$TESTDIR/file1" $((nr * 2 * BLKSZ)) \ + "$TESTDIR/file2" $((nr * 2 * BLKSZ)) $BLKSZ >> "$seqres.full" +done + +echo "Create metadump file" +_scratch_unmount +_scratch_metadump "$METADUMP_FILE" + +# Now restore the obfuscated one back and take a look around +echo "Restore metadump" +xfs_mdrestore "$METADUMP_FILE" "$TEST_DIR/image" +_mount -t $FSTYP "$TEST_DIR/image" "$SCRATCH_MNT" +umount "$SCRATCH_MNT" + +echo "Check restored fs" +_check_generic_filesystem "$METADUMP_FILE" + +# success, all done +status=0 +exit diff --git a/tests/xfs/129.out b/tests/xfs/129.out new file mode 100644 index 0000000..da6f43f --- /dev/null +++ b/tests/xfs/129.out @@ -0,0 +1,6 @@ +QA output created by 129 +Create the original file blocks +Reflink every other block +Create metadump file +Restore metadump +Check restored fs diff --git a/tests/xfs/130 b/tests/xfs/130 new file mode 100755 index 0000000..b64ea8c --- /dev/null +++ b/tests/xfs/130 @@ -0,0 +1,109 @@ +#! /bin/bash +# FS QA Test No. 130 +# +# Create and populate an XFS filesystem, corrupt the refcount btree, +# then see how the kernel and xfs_repair deal with it. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + #rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_scratch_reflink +_require_cp_reflink +test -n "${FORCE_FUZZ}" || _require_scratch_xfs_crc + +rm -f "$seqres.full" + +echo "+ create scratch fs" +_scratch_mkfs_xfs > /dev/null + +echo "+ mount fs image" +_scratch_mount +blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")" +agcount="$(xfs_info "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')" + +echo "+ make some files" +_pwrite_byte 0x62 0 $((blksz * 64)) "${SCRATCH_MNT}/file0" >> "$seqres.full" +_pwrite_byte 0x61 0 $((blksz * 64)) "${SCRATCH_MNT}/file1" >> "$seqres.full" +_cp_reflink "${SCRATCH_MNT}/file0" "${SCRATCH_MNT}/file2" +_cp_reflink "${SCRATCH_MNT}/file1" "${SCRATCH_MNT}/file3" +umount "${SCRATCH_MNT}" + +echo "+ check fs" +_scratch_xfs_repair -n >> "$seqres.full" 2>&1 || \ + _fail "xfs_repair should not fail" + +echo "+ corrupt image" +seq 0 $((agcount - 1)) | while read ag; do + $XFS_DB_PROG -x -c "agf ${ag}" -c "agf ${ag}" -c "addr refcntroot" \ + -c "stack" -c "blocktrash -x 4096 -y 4096 -z -n 8 -3" \ + "${SCRATCH_DEV}" >> "$seqres.full" 2>&1 +done + +echo "+ mount image" +_scratch_mount + +echo "+ reflink more" +_cp_reflink "${SCRATCH_MNT}/file1" "${SCRATCH_MNT}/file4" 2> /dev/null && \ + _fail "should not be able to reflink with busted refcount btree" +umount "${SCRATCH_MNT}" + +echo "+ repair fs" +_scratch_xfs_repair >> "$seqres.full" 2>&1 +_scratch_xfs_repair >> "$seqres.full" 2>&1 + +echo "+ mount image (2)" +_scratch_mount + +echo "+ chattr -R -i" +chattr -R -f -i "${SCRATCH_MNT}/" + +echo "+ reflink more (2)" +_cp_reflink "${SCRATCH_MNT}/file1" "${SCRATCH_MNT}/file5" || \ + _fail "modified refcount tree" +umount "${SCRATCH_MNT}" + +echo "+ check fs (2)" +_scratch_xfs_repair -n >> "$seqres.full" 2>&1 || \ + _fail "xfs_repair should not fail" + +status=0 +exit diff --git a/tests/xfs/130.out b/tests/xfs/130.out new file mode 100644 index 0000000..58d153b --- /dev/null +++ b/tests/xfs/130.out @@ -0,0 +1,13 @@ +QA output created by 130 ++ create scratch fs ++ mount fs image ++ make some files ++ check fs ++ corrupt image ++ mount image ++ reflink more ++ repair fs ++ mount image (2) ++ chattr -R -i ++ reflink more (2) ++ check fs (2) diff --git a/tests/xfs/131 b/tests/xfs/131 new file mode 100755 index 0000000..5d092f1 --- /dev/null +++ b/tests/xfs/131 @@ -0,0 +1,76 @@ +#! /bin/bash +# FS QA Test No. 131 +# +# Ensure that we can't reflink realtime files. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + umount "$SCRATCH_MNT" > /dev/null 2>&1 + rm -rf "$tmp".* "$TESTDIR" "$METADUMP_FILE" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_realtime +_require_scratch_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +echo "Format and mount scratch device" +_scratch_mkfs >> "$seqres.full" +_scratch_mount + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ=65536 +$XFS_IO_PROG -R -f -c "truncate $BLKSZ" "$TESTDIR/file1" + +echo "Reflink every block" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" 2>&1 | _filter_scratch + +test -s "$TESTDIR/file2" && _fail "Should not be able to reflink a realtime file." + +echo "Check restored fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/xfs/131.out b/tests/xfs/131.out new file mode 100644 index 0000000..7b700c9 --- /dev/null +++ b/tests/xfs/131.out @@ -0,0 +1,6 @@ +QA output created by 131 +Format and mount scratch device +Create the original file blocks +Reflink every block +cp: failed to clone 'SCRATCH_MNT/test-131/file2' from 'SCRATCH_MNT/test-131/file1': Invalid argument +Check restored fs diff --git a/tests/xfs/132 b/tests/xfs/132 new file mode 100755 index 0000000..ec7b178 --- /dev/null +++ b/tests/xfs/132 @@ -0,0 +1,130 @@ +#! /bin/bash +# FS QA Test No. 132 +# +# Ensure that fallocate on reflinked files actually CoWs the shared blocks. +# - Record fs block usage (0) +# - Create a file and some reflink copies +# - Record fs block usage (1) +# - funshare half of one of the copies +# - Record fs block usage (2) +# - funshare all of the copies +# - Record fs block usage (3) +# - rewrite the original file +# - Record fs block usage (4) +# - Compare fs block usage of 0-4 to ensure that block usage behaves as +# we expect. +# - Compare the status of the inode reflink flag at each step. +# +# "funshare" refers to fallocate copy-on-writing the shared blocks +# +# This is the same test as generic/156 except that we also check the inode +# reflink flag. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_test_reflink +_require_test_lsattr +_require_cp_reflink +_require_xfs_io_command "falloc" + +rm -f "$seqres.full" + +TESTDIR="$TEST_DIR/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create the original file blocks" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +BLKS=2000 +MARGIN=100 +SZ=$((BLKSZ * BLKS)) +FREE_BLOCKS0=$(stat -f "$TESTDIR" -c '%f') +NR=4 +_pwrite_byte 0x61 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount + +echo "Create the reflink copies" +for i in `seq 2 $NR`; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/file$i" +done +_test_remount +FREE_BLOCKS1=$(stat -f "$TESTDIR" -c '%f') +lsattr -l $TESTDIR/ | _filter_test_dir + +echo "funshare part of a file" +"$XFS_IO_PROG" -f -c "falloc 0 $((SZ / 2))" "$TESTDIR/file2" +_test_remount +lsattr -l $TESTDIR/ | _filter_test_dir + +echo "funshare some of the copies" +"$XFS_IO_PROG" -f -c "falloc 0 $SZ" "$TESTDIR/file2" +"$XFS_IO_PROG" -f -c "falloc 0 $SZ" "$TESTDIR/file3" +_test_remount +FREE_BLOCKS2=$(stat -f "$TESTDIR" -c '%f') +lsattr -l $TESTDIR/ | _filter_test_dir + +echo "funshare the rest of the files" +"$XFS_IO_PROG" -f -c "falloc 0 $SZ" "$TESTDIR/file4" +"$XFS_IO_PROG" -f -c "falloc 0 $SZ" "$TESTDIR/file1" +_test_remount +FREE_BLOCKS3=$(stat -f "$TESTDIR" -c '%f') +lsattr -l $TESTDIR/ | _filter_test_dir + +echo "Rewrite the original file" +_pwrite_byte 0x65 0 $SZ "$TESTDIR/file1" >> "$seqres.full" +_test_remount +FREE_BLOCKS4=$(stat -f "$TESTDIR" -c '%f') +lsattr -l $TESTDIR/ | _filter_test_dir +#echo $FREE_BLOCKS0 $FREE_BLOCKS1 $FREE_BLOCKS2 $FREE_BLOCKS3 $FREE_BLOCKS4 + +_within_tolerance "free blocks after reflinking" $FREE_BLOCKS1 $((FREE_BLOCKS0 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after nocow'ing some copies" $FREE_BLOCKS2 $((FREE_BLOCKS1 - (2 * BLKS))) $MARGIN -v + +_within_tolerance "free blocks after nocow'ing all copies" $FREE_BLOCKS3 $((FREE_BLOCKS2 - BLKS)) $MARGIN -v + +_within_tolerance "free blocks after overwriting original" $FREE_BLOCKS4 $FREE_BLOCKS3 $MARGIN -v + +_within_tolerance "free blocks after all tests" $FREE_BLOCKS4 $((FREE_BLOCKS0 - (4 * BLKS))) $MARGIN -v + +# success, all done +status=0 +exit diff --git a/tests/xfs/132.out b/tests/xfs/132.out new file mode 100644 index 0000000..fd2b7bd --- /dev/null +++ b/tests/xfs/132.out @@ -0,0 +1,32 @@ +QA output created by 132 +Create the original file blocks +Create the reflink copies +TEST_DIR/test-132/file1 --- +TEST_DIR/test-132/file2 --- +TEST_DIR/test-132/file3 --- +TEST_DIR/test-132/file4 --- +funshare part of a file +TEST_DIR/test-132/file1 --- +TEST_DIR/test-132/file2 --- +TEST_DIR/test-132/file3 --- +TEST_DIR/test-132/file4 --- +funshare some of the copies +TEST_DIR/test-132/file1 --- +TEST_DIR/test-132/file2 No_COW +TEST_DIR/test-132/file3 No_COW +TEST_DIR/test-132/file4 --- +funshare the rest of the files +TEST_DIR/test-132/file1 No_COW +TEST_DIR/test-132/file2 No_COW +TEST_DIR/test-132/file3 No_COW +TEST_DIR/test-132/file4 No_COW +Rewrite the original file +TEST_DIR/test-132/file1 No_COW +TEST_DIR/test-132/file2 No_COW +TEST_DIR/test-132/file3 No_COW +TEST_DIR/test-132/file4 No_COW +free blocks after reflinking is in range +free blocks after nocow'ing some copies is in range +free blocks after nocow'ing all copies is in range +free blocks after overwriting original is in range +free blocks after all tests is in range diff --git a/tests/xfs/group b/tests/xfs/group index 8261f86..9884329 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -124,6 +124,12 @@ 124 fuzzers 125 fuzzers 126 fuzzers +127 auto quick clone +128 auto quick clone +129 auto quick clone +130 fuzzers +131 auto quick clone +132 auto quick clone 134 quota auto quick 136 attr2 142 dmapi From darrick.wong@oracle.com Fri Nov 13 15:38:23 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id ECE357F6F for ; Fri, 13 Nov 2015 15:38:22 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id DEE538F8033 for ; Fri, 13 Nov 2015 13:38:22 -0800 (PST) X-ASG-Debug-ID: 1447450697-04cb6c0cd142950001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id dH7AeJiFdtGuWC3U (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:38:18 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLbqqu000706 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:37:52 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbpx0025926 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:37:52 GMT Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tADLboPd028684; Fri, 13 Nov 2015 21:37:50 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:37:50 -0800 Subject: [PATCH 10/12] reflink: concurrent operations tests From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 10/12] reflink: concurrent operations tests To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:37:49 -0800 Message-ID: <20151113213749.31124.34969.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447450698 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24370 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Make sure that running reflink ops while other IO is ongoing doesn't break the filesystem. Signed-off-by: Darrick J. Wong --- tests/generic/161 | 79 +++++++++++++++++++++++++++++++++++++ tests/generic/161.out | 6 +++ tests/generic/162 | 95 ++++++++++++++++++++++++++++++++++++++++++++ tests/generic/162.out | 7 +++ tests/generic/163 | 95 ++++++++++++++++++++++++++++++++++++++++++++ tests/generic/163.out | 7 +++ tests/generic/164 | 105 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/164.out | 7 +++ tests/generic/165 | 105 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/165.out | 7 +++ tests/generic/166 | 93 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/166.out | 6 +++ tests/generic/167 | 93 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/167.out | 6 +++ tests/generic/168 | 97 +++++++++++++++++++++++++++++++++++++++++++++ tests/generic/168.out | 6 +++ tests/generic/170 | 97 +++++++++++++++++++++++++++++++++++++++++++++ tests/generic/170.out | 6 +++ tests/generic/group | 9 ++++ 19 files changed, 926 insertions(+) create mode 100755 tests/generic/161 create mode 100644 tests/generic/161.out create mode 100755 tests/generic/162 create mode 100644 tests/generic/162.out create mode 100755 tests/generic/163 create mode 100644 tests/generic/163.out create mode 100755 tests/generic/164 create mode 100644 tests/generic/164.out create mode 100755 tests/generic/165 create mode 100644 tests/generic/165.out create mode 100755 tests/generic/166 create mode 100644 tests/generic/166.out create mode 100755 tests/generic/167 create mode 100644 tests/generic/167.out create mode 100755 tests/generic/168 create mode 100644 tests/generic/168.out create mode 100755 tests/generic/170 create mode 100644 tests/generic/170.out diff --git a/tests/generic/161 b/tests/generic/161 new file mode 100755 index 0000000..efb137c --- /dev/null +++ b/tests/generic/161 @@ -0,0 +1,79 @@ +#! /bin/bash +# FS QA Test No. 161 +# +# Test for race between delete a file while rewriting its reflinked twin +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=4096 +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" +_scratch_remount + +echo "Delete while rewriting" +rm -rf "$TESTDIR/file1" & +_pwrite_byte 0x62 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +wait + +echo "Check fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" +# success, all done +status=0 +exit diff --git a/tests/generic/161.out b/tests/generic/161.out new file mode 100644 index 0000000..1db11c3 --- /dev/null +++ b/tests/generic/161.out @@ -0,0 +1,6 @@ +QA output created by 161 +Format and mount +Initialize files +Delete while rewriting +Check fs +Done diff --git a/tests/generic/162 b/tests/generic/162 new file mode 100755 index 0000000..6bd3a33 --- /dev/null +++ b/tests/generic/162 @@ -0,0 +1,95 @@ +#! /bin/bash +# FS QA Test No. 162 +# +# Test for race between dedupe and writing the dest file +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_dedupe + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=512 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full" +_scratch_remount + +overwrite() { + while [ ! -e "$TESTDIR/finished" ]; do + seq $nr_loops -1 0 | while read i; do + _pwrite_byte 0x61 $((i * BLKSZ)) $BLKSZ "$TESTDIR/file2" >> "$seqres.full" + done + done +} + +echo "Dedupe and rewrite the file!" +overwrite & +for i in `seq 1 2`; do + seq $nr_loops -1 0 | while read i; do + _dedupe_range "$TESTDIR/file1" $((i * BLKSZ)) \ + "$TESTDIR/file2" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && break + done +done +echo "Finished dedupeing" +touch "$TESTDIR/finished" +wait + +echo "Check fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" +# success, all done +status=0 +exit diff --git a/tests/generic/162.out b/tests/generic/162.out new file mode 100644 index 0000000..4481f8c --- /dev/null +++ b/tests/generic/162.out @@ -0,0 +1,7 @@ +QA output created by 162 +Format and mount +Initialize files +Dedupe and rewrite the file! +Finished dedupeing +Check fs +Done diff --git a/tests/generic/163 b/tests/generic/163 new file mode 100755 index 0000000..1f5042f --- /dev/null +++ b/tests/generic/163 @@ -0,0 +1,95 @@ +#! /bin/bash +# FS QA Test No. 163 +# +# Test for race between dedupe and writing the source file +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_dedupe + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=512 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full" +_scratch_remount + +overwrite() { + while [ ! -e "$TESTDIR/finished" ]; do + seq $nr_loops -1 0 | while read i; do + _pwrite_byte 0x61 $((i * BLKSZ)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full" + done + done +} + +echo "Dedupe and rewrite the file!" +overwrite & +for i in `seq 1 2`; do + seq $nr_loops -1 0 | while read i; do + _dedupe_range "$TESTDIR/file1" $((i * BLKSZ)) \ + "$TESTDIR/file2" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && break + done +done +echo "Finished dedupeing" +touch "$TESTDIR/finished" +wait + +echo "Check fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" +# success, all done +status=0 +exit diff --git a/tests/generic/163.out b/tests/generic/163.out new file mode 100644 index 0000000..2d27d1b --- /dev/null +++ b/tests/generic/163.out @@ -0,0 +1,7 @@ +QA output created by 163 +Format and mount +Initialize files +Dedupe and rewrite the file! +Finished dedupeing +Check fs +Done diff --git a/tests/generic/164 b/tests/generic/164 new file mode 100755 index 0000000..4df953d --- /dev/null +++ b/tests/generic/164 @@ -0,0 +1,105 @@ +#! /bin/bash +# FS QA Test No. 164 +# +# Test for races or FS corruption between reflink and buffered I/O reading the +# target file. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=512 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file3" +_scratch_remount + +fbytes() { + egrep -v '(61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61|62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62)' +} + +reader() { + while [ ! -e "$TESTDIR/finished" ]; do + _read_range "$TESTDIR/file3" 0 $((loops * BLKSZ)) | fbytes + done +} + +echo "Reflink and reread the files!" +reader & +for i in `seq 1 2`; do + seq $nr_loops -1 0 | while read i; do + _reflink_range "$TESTDIR/file1" $((i * BLKSZ)) \ + "$TESTDIR/file3" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && break + done + seq $nr_loops -1 0 | while read i; do + _reflink_range "$TESTDIR/file2" $((i * BLKSZ)) \ + "$TESTDIR/file3" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && break + done +done +echo "Finished reflinking" +touch "$TESTDIR/finished" +wait + +echo "Check fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" +# success, all done +status=0 +exit diff --git a/tests/generic/164.out b/tests/generic/164.out new file mode 100644 index 0000000..0b4ed70 --- /dev/null +++ b/tests/generic/164.out @@ -0,0 +1,7 @@ +QA output created by 164 +Format and mount +Initialize files +Reflink and reread the files! +Finished reflinking +Check fs +Done diff --git a/tests/generic/165 b/tests/generic/165 new file mode 100755 index 0000000..49187ec --- /dev/null +++ b/tests/generic/165 @@ -0,0 +1,105 @@ +#! /bin/bash +# FS QA Test No. 165 +# +# Test for races or FS corruption between reflink and direct I/O reading the +# target file. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=512 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full" +_cp_reflink $TESTDIR/file1 $TESTDIR/file3 +_scratch_remount + +fbytes() { + egrep -v '(61 61 61 61 61 61 61 61 61 61 61 61 61 61 61 61|62 62 62 62 62 62 62 62 62 62 62 62 62 62 62 62)' +} + +reader() { + while [ ! -e "$TESTDIR/finished" ]; do + _read_range "$TESTDIR/file3" 0 $((loops * BLKSZ)) -d | fbytes + done +} + +echo "Reflink and dio reread the files!" +reader & +for i in `seq 1 2`; do + seq $nr_loops -1 0 | while read i; do + _reflink_range "$TESTDIR/file1" $((i * BLKSZ)) \ + "$TESTDIR/file3" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && break + done + seq $nr_loops -1 0 | while read i; do + _reflink_range "$TESTDIR/file2" $((i * BLKSZ)) \ + "$TESTDIR/file3" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && break + done +done +echo "Finished reflinking" +touch "$TESTDIR/finished" +wait + +echo "Check fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" +# success, all done +status=0 +exit diff --git a/tests/generic/165.out b/tests/generic/165.out new file mode 100644 index 0000000..a89071d --- /dev/null +++ b/tests/generic/165.out @@ -0,0 +1,7 @@ +QA output created by 165 +Format and mount +Initialize files +Reflink and dio reread the files! +Finished reflinking +Check fs +Done diff --git a/tests/generic/166 b/tests/generic/166 new file mode 100755 index 0000000..71eb2ab --- /dev/null +++ b/tests/generic/166 @@ -0,0 +1,93 @@ +#! /bin/bash +# FS QA Test No. 166 +# +# Test for races or FS corruption when DIO writing to a file that's also +# the source of a reflink operation. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=1024 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize file" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_scratch_remount + +# Snapshot creator... +snappy() { + n=0 + while [ ! -e "$TESTDIR/finished" ]; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/snap_$n" || break + n=$((n + 1)) + done +} + +echo "Snapshot a file undergoing directio rewrite" +snappy & +seq $nr_loops -1 0 | while read i; do + _pwrite_byte 0x63 $((i * BLKSZ)) $BLKSZ -d "$TESTDIR/file1" >> "$seqres.full" +done +touch $TESTDIR/finished +wait + +echo "Check for damage" +umount $SCRATCH_MNT +_check_scratch_fs + +echo "Done" + +# success, all done +status=0 +exit diff --git a/tests/generic/166.out b/tests/generic/166.out new file mode 100644 index 0000000..a2ba34e --- /dev/null +++ b/tests/generic/166.out @@ -0,0 +1,6 @@ +QA output created by 166 +Format and mount +Initialize file +Snapshot a file undergoing directio rewrite +Check for damage +Done diff --git a/tests/generic/167 b/tests/generic/167 new file mode 100755 index 0000000..c4e6ce8 --- /dev/null +++ b/tests/generic/167 @@ -0,0 +1,93 @@ +#! /bin/bash +# FS QA Test No. 167 +# +# Test for races or FS corruption when writing to a file that's also +# the source of a reflink operation. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=1024 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize file" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_scratch_remount + +# Snapshot creator... +snappy() { + n=0 + while [ ! -e "$TESTDIR/finished" ]; do + _cp_reflink "$TESTDIR/file1" "$TESTDIR/snap_$n" || break + n=$((n + 1)) + done +} + +echo "Snapshot a file undergoing buffered rewrite" +snappy & +seq $nr_loops -1 0 | while read i; do + _pwrite_byte 0x63 $((i * BLKSZ)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +done +touch $TESTDIR/finished +wait + +echo "Check for damage" +umount $SCRATCH_MNT +_check_scratch_fs + +echo "Done" + +# success, all done +status=0 +exit diff --git a/tests/generic/167.out b/tests/generic/167.out new file mode 100644 index 0000000..7cfb14e --- /dev/null +++ b/tests/generic/167.out @@ -0,0 +1,6 @@ +QA output created by 167 +Format and mount +Initialize file +Snapshot a file undergoing buffered rewrite +Check for damage +Done diff --git a/tests/generic/168 b/tests/generic/168 new file mode 100755 index 0000000..414dcb0 --- /dev/null +++ b/tests/generic/168 @@ -0,0 +1,97 @@ +#! /bin/bash +# FS QA Test No. 168 +# +# Test for races or FS corruption when writing to a file that's also +# the target of a reflink operation. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=1024 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full" +_scratch_remount + +# Direct I/O overwriter... +overwrite() { + while [ ! -e "$TESTDIR/finished" ]; do + seq $nr_loops -1 0 | while read i; do + _pwrite_byte 0x63 $((i * BLKSZ)) $BLKSZ "$TESTDIR/file2" >> "$seqres.full" + done + done +} + +echo "Reflink and write the target" +overwrite & +seq 1 10 | while read j; do + seq 0 $nr_loops | while read i; do + _reflink_range "$TESTDIR/file1" $((i * BLKSZ)) \ + "$TESTDIR/file2" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && exit + done +done +touch "$TESTDIR/finished" +wait + +echo "Check for damage" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" + +# success, all done +status=0 +exit diff --git a/tests/generic/168.out b/tests/generic/168.out new file mode 100644 index 0000000..d0dd08e --- /dev/null +++ b/tests/generic/168.out @@ -0,0 +1,6 @@ +QA output created by 168 +Format and mount +Initialize files +Reflink and write the target +Check for damage +Done diff --git a/tests/generic/170 b/tests/generic/170 new file mode 100755 index 0000000..704b646 --- /dev/null +++ b/tests/generic/170 @@ -0,0 +1,97 @@ +#! /bin/bash +# FS QA Test No. 170 +# +# Test for races or FS corruption when DIO writing to a file that's also +# the target of a reflink operation. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 7 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* + wait +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +loops=1024 +nr_loops=$((loops - 1)) +BLKSZ=65536 + +echo "Initialize files" +echo > "$seqres.full" +_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full" +_scratch_remount + +# Direct I/O overwriter... +overwrite() { + while [ ! -e "$TESTDIR/finished" ]; do + seq $nr_loops -1 0 | while read i; do + _pwrite_byte 0x63 $((i * BLKSZ)) $BLKSZ -d "$TESTDIR/file2" >> "$seqres.full" + done + done +} + +echo "Reflink and dio write the target" +overwrite & +seq 1 10 | while read j; do + seq 0 $nr_loops | while read i; do + _reflink_range "$TESTDIR/file1" $((i * BLKSZ)) \ + "$TESTDIR/file2" $((i * BLKSZ)) $BLKSZ >> "$seqres.full" + [ $? -ne 0 ] && exit + done +done +touch "$TESTDIR/finished" +wait + +echo "Check for damage" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Done" + +# success, all done +status=0 +exit diff --git a/tests/generic/170.out b/tests/generic/170.out new file mode 100644 index 0000000..103aaa5 --- /dev/null +++ b/tests/generic/170.out @@ -0,0 +1,6 @@ +QA output created by 170 +Format and mount +Initialize files +Reflink and dio write the target +Check for damage +Done diff --git a/tests/generic/group b/tests/generic/group index 0a20421..6ae3105 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -163,7 +163,16 @@ 158 auto quick clone 159 auto quick clone 160 auto quick clone +161 auto quick clone +162 auto quick clone +163 auto quick clone +164 auto quick clone +165 auto quick clone +166 auto quick clone +167 auto quick clone +168 auto quick clone 169 rw metadata auto quick +170 auto quick clone 184 metadata auto quick 192 atime auto 193 metadata auto quick From darrick.wong@oracle.com Fri Nov 13 15:38:30 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id ECAFC7F5E for ; Fri, 13 Nov 2015 15:38:30 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 958358F8033 for ; Fri, 13 Nov 2015 13:38:30 -0800 (PST) X-ASG-Debug-ID: 1447450706-04bdf07f0946b50001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id LAknARALzYLmMuoa (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:38:27 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLbv1s019016 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:37:58 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbvwX011631 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:37:57 GMT Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tADLbvnj007514; Fri, 13 Nov 2015 21:37:57 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:37:56 -0800 Subject: [PATCH 11/12] reflink: test that CoW writes fail when we're out of space From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 11/12] reflink: test that CoW writes fail when we're out of space To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:37:55 -0800 Message-ID: <20151113213755.31124.31309.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447450706 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24371 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Ensure that copy-on-writing a reflinked file when there's no free disk space reflects the desired ENOSPC back to userspace during the write call. Tests the buffered IO, direct IO, and mmap write paths. Signed-off-by: Darrick J. Wong --- tests/generic/171 | 107 ++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/171.out | 10 ++++ tests/generic/172 | 107 ++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/172.out | 10 ++++ tests/generic/173 | 109 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/173.out | 8 ++++ tests/generic/174 | 107 ++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/174.out | 10 ++++ tests/generic/group | 4 ++ 9 files changed, 472 insertions(+) create mode 100755 tests/generic/171 create mode 100644 tests/generic/171.out create mode 100755 tests/generic/172 create mode 100644 tests/generic/172.out create mode 100755 tests/generic/173 create mode 100644 tests/generic/173.out create mode 100755 tests/generic/174 create mode 100644 tests/generic/174.out diff --git a/tests/generic/171 b/tests/generic/171 new file mode 100755 index 0000000..99e4d5e --- /dev/null +++ b/tests/generic/171 @@ -0,0 +1,107 @@ +#! /bin/bash +# FS QA Test No. 171 +# +# Reflink a file, use up the rest of the space, then try to observe ENOSPC +# while copy-on-writing the file via the page cache. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Reformat with appropriate size" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +NR_BLKS=10240 +umount "$SCRATCH_MNT" +SZ_BYTES=$((NR_BLKS * 8 * BLKSZ)) +if [ $SZ_BYTES -lt $((32 * 1048576)) ]; then + SZ_BYTES=$((32 * 1048576)) +fi +_scratch_mkfs_sized $SZ_BYTES >> "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create a big file and reflink it" +_pwrite_byte 0x61 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" >> "$seqres.full" 2>&1 +_cp_reflink "$TESTDIR/bigfile" "$TESTDIR/clonefile" +sync + +echo "Allocate the rest of the space" +NR_FREE="$(stat -f -c '%f' "$TESTDIR")" +touch "$TESTDIR/file0" "$TESTDIR/file1" +_pwrite_byte 0x61 0 $((BLKSZ * NR_FREE)) "$TESTDIR/eat_my_space" >> "$seqres.full" 2>&1 +sync + +echo "CoW the big file" +out="$(_pwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" 2>&1)" +echo "${out}" | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" +echo "${out}" >> "$seqres.full" 2>&1 +echo "${out}" + +echo "Remount and try CoW again" +_scratch_remount + +out="$(_pwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" 2>&1)" +echo "${out}" | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" +echo "${out}" >> "$seqres.full" 2>&1 +echo "${out}" + +#filefrag -v $TESTDIR/bigfile +#filefrag -v $TESTDIR/clonefile + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/171.out b/tests/generic/171.out new file mode 100644 index 0000000..c2b0ddd --- /dev/null +++ b/tests/generic/171.out @@ -0,0 +1,10 @@ +QA output created by 171 +Format and mount +Reformat with appropriate size +Create a big file and reflink it +Allocate the rest of the space +CoW the big file +pwrite64: No space left on device +Remount and try CoW again +pwrite64: No space left on device +Check scratch fs diff --git a/tests/generic/172 b/tests/generic/172 new file mode 100755 index 0000000..eb00f0a --- /dev/null +++ b/tests/generic/172 @@ -0,0 +1,107 @@ +#! /bin/bash +# FS QA Test No. 172 +# +# Reflink a file that uses more than half of the space, then try to observe +# ENOSPC while copy-on-writing the file via the page cache. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Reformat with appropriate size" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +NR_BLKS=10240 +umount "$SCRATCH_MNT" +SZ_BYTES=$((NR_BLKS * 3 / 2 * BLKSZ)) +if [ $SZ_BYTES -lt $((32 * 1048576)) ]; then + SZ_BYTES=$((32 * 1048576)) +fi +_scratch_mkfs_sized $SZ_BYTES >> "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create a big file and reflink it" +_pwrite_byte 0x61 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" >> "$seqres.full" 2>&1 +_cp_reflink "$TESTDIR/bigfile" "$TESTDIR/clonefile" +sync + +echo "Allocate the rest of the space" +NR_FREE="$(stat -f -c '%f' "$TESTDIR")" +touch "$TESTDIR/file0" "$TESTDIR/file1" +_pwrite_byte 0x61 0 $((BLKSZ * NR_FREE)) "$TESTDIR/eat_my_space" >> "$seqres.full" 2>&1 +sync + +echo "CoW the big file" +out="$(_pwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" 2>&1)" +echo "${out}" | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" +echo "${out}" >> "$seqres.full" 2>&1 +echo "${out}" + +echo "Remount and try CoW again" +_scratch_remount + +out="$(_pwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" 2>&1)" +echo "${out}" | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" +echo "${out}" >> "$seqres.full" 2>&1 +echo "${out}" + +#filefrag -v $TESTDIR/bigfile +#filefrag -v $TESTDIR/clonefile + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/172.out b/tests/generic/172.out new file mode 100644 index 0000000..3913dd7 --- /dev/null +++ b/tests/generic/172.out @@ -0,0 +1,10 @@ +QA output created by 172 +Format and mount +Reformat with appropriate size +Create a big file and reflink it +Allocate the rest of the space +CoW the big file +pwrite64: No space left on device +Remount and try CoW again +pwrite64: No space left on device +Check scratch fs diff --git a/tests/generic/173 b/tests/generic/173 new file mode 100755 index 0000000..76463d2 --- /dev/null +++ b/tests/generic/173 @@ -0,0 +1,109 @@ +#! /bin/bash +# FS QA Test No. 173 +# +# Reflink a file, use up the rest of the space, then try to observe ENOSPC +# while copy-on-writing the file via mmap. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Reformat with appropriate size" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +NR_BLKS=10240 +umount "$SCRATCH_MNT" +SZ_BYTES=$((NR_BLKS * 8 * BLKSZ)) +if [ $SZ_BYTES -lt $((32 * 1048576)) ]; then + SZ_BYTES=$((32 * 1048576)) +fi +_scratch_mkfs_sized $SZ_BYTES >> "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create a big file and reflink it" +_pwrite_byte 0x61 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" >> "$seqres.full" 2>&1 +_cp_reflink "$TESTDIR/bigfile" "$TESTDIR/clonefile" +sync + +echo "Allocate the rest of the space" +NR_FREE="$(stat -f -c '%f' "$TESTDIR")" +touch "$TESTDIR/file0" "$TESTDIR/file1" +_pwrite_byte 0x61 0 $((BLKSZ * NR_FREE)) "$TESTDIR/eat_my_space" >> "$seqres.full" 2>&1 +sync + +echo "mmap CoW the big file" +out="$(_mwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" 2>&1)" +err="$?" +if [ "$err" -lt 128 ]; then + echo "mmap CoW should have failed with SIGBUS, got SIG$(kill -l $err)" +fi + +echo "Remount and try CoW again" +_scratch_remount + +out="$(_mwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" 2>&1)" +err="$?" +if [ "$err" -lt 128 ]; then + echo "mmap CoW should have failed with SIGBUS, got SIG$(kill -l $err)" +fi + +#filefrag -v $TESTDIR/bigfile +#filefrag -v $TESTDIR/clonefile + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/173.out b/tests/generic/173.out new file mode 100644 index 0000000..49abb17 --- /dev/null +++ b/tests/generic/173.out @@ -0,0 +1,8 @@ +QA output created by 173 +Format and mount +Reformat with appropriate size +Create a big file and reflink it +Allocate the rest of the space +mmap CoW the big file +Remount and try CoW again +Check scratch fs diff --git a/tests/generic/174 b/tests/generic/174 new file mode 100755 index 0000000..8df292a --- /dev/null +++ b/tests/generic/174 @@ -0,0 +1,107 @@ +#! /bin/bash +# FS QA Test No. 174 +# +# Reflink a file, use up the rest of the space, then try to observe ENOSPC +# while copy-on-writing the file via direct-io. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Reformat with appropriate size" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +NR_BLKS=10240 +umount "$SCRATCH_MNT" +SZ_BYTES=$((NR_BLKS * 8 * BLKSZ)) +if [ $SZ_BYTES -lt $((32 * 1048576)) ]; then + SZ_BYTES=$((32 * 1048576)) +fi +_scratch_mkfs_sized $SZ_BYTES >> "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +echo "Create a big file and reflink it" +_pwrite_byte 0x61 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" >> "$seqres.full" 2>&1 +_cp_reflink "$TESTDIR/bigfile" "$TESTDIR/clonefile" +sync + +echo "Allocate the rest of the space" +NR_FREE="$(stat -f -c '%f' "$TESTDIR")" +touch "$TESTDIR/file0" "$TESTDIR/file1" +_pwrite_byte 0x61 0 $((BLKSZ * NR_FREE)) "$TESTDIR/eat_my_space" >> "$seqres.full" 2>&1 +sync + +echo "CoW the big file" +out="$(_pwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" -d 2>&1)" +echo "${out}" | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" +echo "${out}" >> "$seqres.full" 2>&1 +echo "${out}" + +echo "Remount and try CoW again" +_scratch_remount + +out="$(_pwrite_byte 0x62 0 $((BLKSZ * NR_BLKS)) "$TESTDIR/bigfile" -d 2>&1)" +echo "${out}" | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" +echo "${out}" >> "$seqres.full" 2>&1 +echo "${out}" + +#filefrag -v $TESTDIR/bigfile +#filefrag -v $TESTDIR/clonefile + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/174.out b/tests/generic/174.out new file mode 100644 index 0000000..702d067 --- /dev/null +++ b/tests/generic/174.out @@ -0,0 +1,10 @@ +QA output created by 174 +Format and mount +Reformat with appropriate size +Create a big file and reflink it +Allocate the rest of the space +CoW the big file +pwrite64: No space left on device +Remount and try CoW again +pwrite64: No space left on device +Check scratch fs diff --git a/tests/generic/group b/tests/generic/group index 6ae3105..09a7828 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -173,6 +173,10 @@ 168 auto quick clone 169 rw metadata auto quick 170 auto quick clone +171 auto quick clone +172 auto quick clone +173 auto quick clone +174 auto quick clone 184 metadata auto quick 192 atime auto 193 metadata auto quick From darrick.wong@oracle.com Fri Nov 13 15:38:34 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 555957F91 for ; Fri, 13 Nov 2015 15:38:34 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 375B48F8033 for ; Fri, 13 Nov 2015 13:38:34 -0800 (PST) X-ASG-Debug-ID: 1447450711-04cb6c0cd342980001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id 97CCxvOjdGQxBh8B (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 13 Nov 2015 13:38:32 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tADLc4JA019451 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 13 Nov 2015 21:38:04 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tADLc3hJ012257 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Nov 2015 21:38:04 GMT Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tADLc3de026766; Fri, 13 Nov 2015 21:38:03 GMT Received: from localhost (/71.198.20.188) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 13 Nov 2015 13:38:03 -0800 Subject: [PATCH 12/12] reflink: test what happens when we hit resource limits From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 12/12] reflink: test what happens when we hit resource limits To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 13 Nov 2015 13:38:02 -0800 Message-ID: <20151113213802.31124.74408.stgit@birch.djwong.org> In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> References: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447450712 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24370 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Add a few horrible opt-in stress tests to see what happens if we try to reflink the same block billions of times, and what happens if we run out of space while reflinking a file. Signed-off-by: Darrick J. Wong --- tests/generic/175 | 99 +++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/175.out | 0 tests/generic/176 | 81 ++++++++++++++++++++++++++++++++++++++++ tests/generic/176.out | 5 ++ tests/generic/group | 2 + 5 files changed, 187 insertions(+) create mode 100755 tests/generic/175 create mode 100644 tests/generic/175.out create mode 100755 tests/generic/176 create mode 100644 tests/generic/176.out diff --git a/tests/generic/175 b/tests/generic/175 new file mode 100755 index 0000000..a7da533 --- /dev/null +++ b/tests/generic/175 @@ -0,0 +1,99 @@ +#! /bin/bash +# FS QA Test No. 175 +# +# Try to hit the maximum reference count (eek!) +# +# This test runs extremely slowly, so it's not automatically run anywhere. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink +_require_cp_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +# Well let's hope the maximum reflink count is (less than (ha!)) 2^32... + +echo "Create a one block file" +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +_pwrite_byte 0x61 0 $BLKSZ "$TESTDIR/file1" >> "$seqres.full" +_pwrite_byte 0x62 0 $BLKSZ "$TESTDIR/file2" >> "$seqres.full" +_cp_reflink "$TESTDIR/file1" "$TESTDIR/file2" >> "$seqres.full" + +nr=32 +fnr=32 +for i in $(seq 0 $fnr); do + echo " ++ Reflink size $i, $(( (2 ** i) * BLKSZ)) bytes" | tee -a "$seqres.full" + n=$(( (2 ** i) * BLKSZ)) + _reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file1" $n $n >> "$seqres.full" || break +done + +nrf=$((nr - fnr)) +echo "Clone $((2 ** nrf)) files" +seq 0 $((2 ** nrf)) | while read i; do + _cp-reflink "$TESTDIR/file1" "$TESTDIR/file1-$i" +done + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Remove big file and recheck" +_scratch_mount >> "$seqres.full" 2>&1 +umount "$SCRATCH_MNT" +_check_scratch_fs + +echo "Remove all files and recheck" +_scratch_mount >> "$seqres.full" 2>&1 +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/175.out b/tests/generic/175.out new file mode 100644 index 0000000..e69de29 diff --git a/tests/generic/176 b/tests/generic/176 new file mode 100755 index 0000000..bf930b7 --- /dev/null +++ b/tests/generic/176 @@ -0,0 +1,81 @@ +#! /bin/bash +# FS QA Test No. 176 +# +# Try to run out of space while cloning? +# +#----------------------------------------------------------------------- +# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -rf "$tmp".* "$TESTDIR1" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/attr +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_require_scratch_reflink + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +TESTDIR="$SCRATCH_MNT/test-$seq" +rm -rf "$TESTDIR" +mkdir "$TESTDIR" + +BLKSZ="$(stat -f "$TESTDIR" -c '%S')" +NR_FREE="$(stat -f -c '%f' "$TESTDIR")" +echo "Create a big file" +touch "$TESTDIR/file0" "$TESTDIR/file1" +_pwrite_byte 0x61 0 $((BLKSZ * NR_FREE)) "$TESTDIR/bigfile" >> "$seqres.full" 2>&1 +_scratch_remount +sz="$(stat -c '%s' "$TESTDIR/bigfile")" + +blks="$((sz / BLKSZ))" +echo "Try to reflink" +seq 0 $blks | while read lblk; do + fname="$TESTDIR/file$((lblk % 2))" + out="$(_reflink_range "$TESTDIR/bigfile" $((lblk * BLKSZ)) "$fname" $((lblk * BLKSZ)) $BLKSZ 2>&1)" + echo "$fname: $out" >> "$seqres.full" + echo "$out" | grep -q "No space left on device" && break +done + +echo "Check scratch fs" +umount "$SCRATCH_MNT" +_check_scratch_fs + +# success, all done +status=0 +exit diff --git a/tests/generic/176.out b/tests/generic/176.out new file mode 100644 index 0000000..eec98eb --- /dev/null +++ b/tests/generic/176.out @@ -0,0 +1,5 @@ +QA output created by 176 +Format and mount +Create a big file +Try to reflink +Check scratch fs diff --git a/tests/generic/group b/tests/generic/group index 09a7828..8a40797 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -177,6 +177,8 @@ 172 auto quick clone 173 auto quick clone 174 auto quick clone +175 clone_stress +176 clone_stress 184 metadata auto quick 192 atime auto 193 metadata auto quick From ross.zwisler@linux.intel.com Fri Nov 13 18:07:08 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 51D7C7F5A for ; Fri, 13 Nov 2015 18:07:08 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 2A9968F808F for ; Fri, 13 Nov 2015 16:07:07 -0800 (PST) X-ASG-Debug-ID: 1447459622-04cbb0605d4e430001-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id Jvc6doaZysjApBax for ; Fri, 13 Nov 2015 16:07:03 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 13 Nov 2015 16:07:02 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,289,1444719600"; d="scan'208";a="684969759" Received: from theros.lm.intel.com ([10.232.112.87]) by orsmga003.jf.intel.com with ESMTP; 13 Nov 2015 16:07:01 -0800 From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: [PATCH v2 01/11] pmem: add wb_cache_pmem() to the PMEM API Date: Fri, 13 Nov 2015 17:06:40 -0700 X-ASG-Orig-Subj: [PATCH v2 01/11] pmem: add wb_cache_pmem() to the PMEM API Message-Id: <1447459610-14259-2-git-send-email-ross.zwisler@linux.intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447459623 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 The function __arch_wb_cache_pmem() was already an internal implementation detail of the x86 PMEM API, but this functionality needs to be exported as part of the general PMEM API to handle the fsync/msync case for DAX mmaps. One thing worth noting is that we really do want this to be part of the PMEM API as opposed to a stand-alone function like clflush_cache_range() because of ordering restrictions. By having wb_cache_pmem() as part of the PMEM API we can leave it unordered, call it multiple times to write back large amounts of memory, and then order the multiple calls with a single wmb_pmem(). Signed-off-by: Ross Zwisler --- arch/x86/include/asm/pmem.h | 11 ++++++----- include/linux/pmem.h | 22 +++++++++++++++++++++- 2 files changed, 27 insertions(+), 6 deletions(-) diff --git a/arch/x86/include/asm/pmem.h b/arch/x86/include/asm/pmem.h index d8ce3ec..6c7ade0 100644 --- a/arch/x86/include/asm/pmem.h +++ b/arch/x86/include/asm/pmem.h @@ -67,18 +67,19 @@ static inline void arch_wmb_pmem(void) } /** - * __arch_wb_cache_pmem - write back a cache range with CLWB + * arch_wb_cache_pmem - write back a cache range with CLWB * @vaddr: virtual start address * @size: number of bytes to write back * * Write back a cache range using the CLWB (cache line write back) * instruction. This function requires explicit ordering with an - * arch_wmb_pmem() call. This API is internal to the x86 PMEM implementation. + * arch_wmb_pmem() call. */ -static inline void __arch_wb_cache_pmem(void *vaddr, size_t size) +static inline void arch_wb_cache_pmem(void __pmem *addr, size_t size) { u16 x86_clflush_size = boot_cpu_data.x86_clflush_size; unsigned long clflush_mask = x86_clflush_size - 1; + void *vaddr = (void __force *)addr; void *vend = vaddr + size; void *p; @@ -115,7 +116,7 @@ static inline size_t arch_copy_from_iter_pmem(void __pmem *addr, size_t bytes, len = copy_from_iter_nocache(vaddr, bytes, i); if (__iter_needs_pmem_wb(i)) - __arch_wb_cache_pmem(vaddr, bytes); + arch_wb_cache_pmem(addr, bytes); return len; } @@ -138,7 +139,7 @@ static inline void arch_clear_pmem(void __pmem *addr, size_t size) else memset(vaddr, 0, size); - __arch_wb_cache_pmem(vaddr, size); + arch_wb_cache_pmem(addr, size); } static inline bool __arch_has_wmb_pmem(void) diff --git a/include/linux/pmem.h b/include/linux/pmem.h index 85f810b3..2cd5003 100644 --- a/include/linux/pmem.h +++ b/include/linux/pmem.h @@ -53,12 +53,18 @@ static inline void arch_clear_pmem(void __pmem *addr, size_t size) { BUG(); } + +static inline void arch_wb_cache_pmem(void __pmem *addr, size_t size) +{ + BUG(); +} #endif /* * Architectures that define ARCH_HAS_PMEM_API must provide * implementations for arch_memcpy_to_pmem(), arch_wmb_pmem(), - * arch_copy_from_iter_pmem(), arch_clear_pmem() and arch_has_wmb_pmem(). + * arch_copy_from_iter_pmem(), arch_clear_pmem(), arch_wb_cache_pmem() + * and arch_has_wmb_pmem(). */ static inline void memcpy_from_pmem(void *dst, void __pmem const *src, size_t size) { @@ -202,4 +208,18 @@ static inline void clear_pmem(void __pmem *addr, size_t size) else default_clear_pmem(addr, size); } + +/** + * wb_cache_pmem - write back processor cache for PMEM memory range + * @addr: virtual start address + * @size: number of bytes to write back + * + * Write back the processor cache range starting at 'addr' for 'size' bytes. + * This function requires explicit ordering with a wmb_pmem() call. + */ +static inline void wb_cache_pmem(void __pmem *addr, size_t size) +{ + if (arch_has_pmem_api()) + arch_wb_cache_pmem(addr, size); +} #endif /* __PMEM_H__ */ -- 2.1.0 From ross.zwisler@linux.intel.com Fri Nov 13 18:07:08 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BC9D27F5D for ; Fri, 13 Nov 2015 18:07:08 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3D6CAAC011 for ; Fri, 13 Nov 2015 16:07:08 -0800 (PST) X-ASG-Debug-ID: 1447459625-04cbb0605c4e440001-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id hTfsQfhoq1yfMYkr for ; Fri, 13 Nov 2015 16:07:05 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 13 Nov 2015 16:07:05 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,289,1444719600"; d="scan'208";a="684969821" Received: from theros.lm.intel.com ([10.232.112.87]) by orsmga003.jf.intel.com with ESMTP; 13 Nov 2015 16:07:04 -0800 From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Date: Fri, 13 Nov 2015 17:06:42 -0700 X-ASG-Orig-Subj: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Message-Id: <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447459625 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 Currently the PMEM driver doesn't accept REQ_FLUSH or REQ_FUA bios. These are sent down via blkdev_issue_flush() in response to a fsync() or msync() and are used by filesystems to order their metadata, among other things. When we get an msync() or fsync() it is the responsibility of the DAX code to flush all dirty pages to media. The PMEM driver then just has issue a wmb_pmem() in response to the REQ_FLUSH to ensure that before we return all the flushed data has been durably stored on the media. Signed-off-by: Ross Zwisler --- drivers/nvdimm/pmem.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 0ba6a97..b914d66 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -80,7 +80,7 @@ static void pmem_make_request(struct request_queue *q, struct bio *bio) if (do_acct) nd_iostat_end(bio, start); - if (bio_data_dir(bio)) + if (bio_data_dir(bio) || (bio->bi_rw & (REQ_FLUSH|REQ_FUA))) wmb_pmem(); bio_endio(bio); @@ -189,6 +189,7 @@ static int pmem_attach_disk(struct device *dev, blk_queue_physical_block_size(pmem->pmem_queue, PAGE_SIZE); blk_queue_max_hw_sectors(pmem->pmem_queue, UINT_MAX); blk_queue_bounce_limit(pmem->pmem_queue, BLK_BOUNCE_ANY); + blk_queue_flush(pmem->pmem_queue, REQ_FLUSH|REQ_FUA); queue_flag_set_unlocked(QUEUE_FLAG_NONROT, pmem->pmem_queue); disk = alloc_disk(0); -- 2.1.0 From ross.zwisler@linux.intel.com Fri Nov 13 18:07:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9A66B7F5A for ; Fri, 13 Nov 2015 18:07:09 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 86D02304093 for ; Fri, 13 Nov 2015 16:07:09 -0800 (PST) X-ASG-Debug-ID: 1447459621-04cb6c0cd349010003-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id 7YQEt1gpKW73Fjrt for ; Fri, 13 Nov 2015 16:07:07 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 13 Nov 2015 16:07:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,289,1444719600"; d="scan'208";a="684969827" Received: from theros.lm.intel.com ([10.232.112.87]) by orsmga003.jf.intel.com with ESMTP; 13 Nov 2015 16:07:05 -0800 From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: [PATCH v2 04/11] dax: support dirty DAX entries in radix tree Date: Fri, 13 Nov 2015 17:06:43 -0700 X-ASG-Orig-Subj: [PATCH v2 04/11] dax: support dirty DAX entries in radix tree Message-Id: <1447459610-14259-5-git-send-email-ross.zwisler@linux.intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447459625 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 Add support for tracking dirty DAX entries in the struct address_space radix tree. This tree is already used for dirty page writeback, and it already supports the use of exceptional (non struct page*) entries. In order to properly track dirty DAX pages we will insert new exceptional entries into the radix tree that represent dirty DAX PTE or PMD pages. These exceptional entries will also contain the writeback addresses for the PTE or PMD faults that we can use at fsync/msync time. There are currently two types of exceptional entries (shmem and shadow) that can be placed into the radix tree, and this adds a third. There shouldn't be any collisions between these various exceptional entries because only one type of exceptional entry should be able to be found in a radix tree at a time depending on how it is being used. Signed-off-by: Ross Zwisler --- fs/block_dev.c | 3 ++- fs/inode.c | 1 + include/linux/dax.h | 5 ++++ include/linux/fs.h | 1 + include/linux/radix-tree.h | 8 ++++++ mm/filemap.c | 10 +++++--- mm/truncate.c | 62 ++++++++++++++++++++++++++-------------------- 7 files changed, 59 insertions(+), 31 deletions(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index 073bb57..afaaf44 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -66,7 +66,8 @@ void kill_bdev(struct block_device *bdev) { struct address_space *mapping = bdev->bd_inode->i_mapping; - if (mapping->nrpages == 0 && mapping->nrshadows == 0) + if (mapping->nrpages == 0 && mapping->nrshadows == 0 && + mapping->nrdax == 0) return; invalidate_bh_lrus(); diff --git a/fs/inode.c b/fs/inode.c index 78a17b8..f7c87a6 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -496,6 +496,7 @@ void clear_inode(struct inode *inode) spin_lock_irq(&inode->i_data.tree_lock); BUG_ON(inode->i_data.nrpages); BUG_ON(inode->i_data.nrshadows); + BUG_ON(inode->i_data.nrdax); spin_unlock_irq(&inode->i_data.tree_lock); BUG_ON(!list_empty(&inode->i_data.private_list)); BUG_ON(!(inode->i_state & I_FREEING)); diff --git a/include/linux/dax.h b/include/linux/dax.h index b415e52..e9d57f68 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -36,4 +36,9 @@ static inline bool vma_is_dax(struct vm_area_struct *vma) { return vma->vm_file && IS_DAX(vma->vm_file->f_mapping->host); } + +static inline bool dax_mapping(struct address_space *mapping) +{ + return mapping->host && IS_DAX(mapping->host); +} #endif diff --git a/include/linux/fs.h b/include/linux/fs.h index 72d8a84..f791698 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -433,6 +433,7 @@ struct address_space { /* Protected by tree_lock together with the radix tree */ unsigned long nrpages; /* number of total pages */ unsigned long nrshadows; /* number of shadow entries */ + unsigned long nrdax; /* number of DAX entries */ pgoff_t writeback_index;/* writeback starts here */ const struct address_space_operations *a_ops; /* methods */ unsigned long flags; /* error bits/gfp mask */ diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h index 33170db..19a533a 100644 --- a/include/linux/radix-tree.h +++ b/include/linux/radix-tree.h @@ -51,6 +51,14 @@ #define RADIX_TREE_EXCEPTIONAL_ENTRY 2 #define RADIX_TREE_EXCEPTIONAL_SHIFT 2 +#define RADIX_DAX_MASK 0xf +#define RADIX_DAX_PTE (0x4 | RADIX_TREE_EXCEPTIONAL_ENTRY) +#define RADIX_DAX_PMD (0x8 | RADIX_TREE_EXCEPTIONAL_ENTRY) +#define RADIX_DAX_TYPE(entry) ((__force u64)entry & RADIX_DAX_MASK) +#define RADIX_DAX_ADDR(entry) ((void __pmem *)((u64)entry & ~RADIX_DAX_MASK)) +#define RADIX_DAX_PTE_ENTRY(addr) ((void *)((__force u64)addr | RADIX_DAX_PTE)) +#define RADIX_DAX_PMD_ENTRY(addr) ((void *)((__force u64)addr | RADIX_DAX_PMD)) + static inline int radix_tree_is_indirect_ptr(void *ptr) { return (int)((unsigned long)ptr & RADIX_TREE_INDIRECT_PTR); diff --git a/mm/filemap.c b/mm/filemap.c index 327910c..d5e94fd 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -11,6 +11,7 @@ */ #include #include +#include #include #include #include @@ -538,6 +539,9 @@ static int page_cache_tree_insert(struct address_space *mapping, p = radix_tree_deref_slot_protected(slot, &mapping->tree_lock); if (!radix_tree_exceptional_entry(p)) return -EEXIST; + + BUG_ON(dax_mapping(mapping)); + if (shadowp) *shadowp = p; mapping->nrshadows--; @@ -1201,9 +1205,9 @@ repeat: if (radix_tree_deref_retry(page)) goto restart; /* - * A shadow entry of a recently evicted page, - * or a swap entry from shmem/tmpfs. Return - * it without attempting to raise page count. + * A shadow entry of a recently evicted page, a swap + * entry from shmem/tmpfs or a DAX entry. Return it + * without attempting to raise page count. */ goto export; } diff --git a/mm/truncate.c b/mm/truncate.c index 76e35ad..32d2964 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -9,6 +9,7 @@ #include #include +#include #include #include #include @@ -34,31 +35,37 @@ static void clear_exceptional_entry(struct address_space *mapping, return; spin_lock_irq(&mapping->tree_lock); - /* - * Regular page slots are stabilized by the page lock even - * without the tree itself locked. These unlocked entries - * need verification under the tree lock. - */ - if (!__radix_tree_lookup(&mapping->page_tree, index, &node, &slot)) - goto unlock; - if (*slot != entry) - goto unlock; - radix_tree_replace_slot(slot, NULL); - mapping->nrshadows--; - if (!node) - goto unlock; - workingset_node_shadows_dec(node); - /* - * Don't track node without shadow entries. - * - * Avoid acquiring the list_lru lock if already untracked. - * The list_empty() test is safe as node->private_list is - * protected by mapping->tree_lock. - */ - if (!workingset_node_shadows(node) && - !list_empty(&node->private_list)) - list_lru_del(&workingset_shadow_nodes, &node->private_list); - __radix_tree_delete_node(&mapping->page_tree, node); + + if (dax_mapping(mapping)) { + radix_tree_delete(&mapping->page_tree, index); + mapping->nrdax--; + } else { + /* + * Regular page slots are stabilized by the page lock even + * without the tree itself locked. These unlocked entries + * need verification under the tree lock. + */ + if (!__radix_tree_lookup(&mapping->page_tree, index, &node, &slot)) + goto unlock; + if (*slot != entry) + goto unlock; + radix_tree_replace_slot(slot, NULL); + mapping->nrshadows--; + if (!node) + goto unlock; + workingset_node_shadows_dec(node); + /* + * Don't track node without shadow entries. + * + * Avoid acquiring the list_lru lock if already untracked. + * The list_empty() test is safe as node->private_list is + * protected by mapping->tree_lock. + */ + if (!workingset_node_shadows(node) && + !list_empty(&node->private_list)) + list_lru_del(&workingset_shadow_nodes, &node->private_list); + __radix_tree_delete_node(&mapping->page_tree, node); + } unlock: spin_unlock_irq(&mapping->tree_lock); } @@ -228,7 +235,8 @@ void truncate_inode_pages_range(struct address_space *mapping, int i; cleancache_invalidate_inode(mapping); - if (mapping->nrpages == 0 && mapping->nrshadows == 0) + if (mapping->nrpages == 0 && mapping->nrshadows == 0 && + mapping->nrdax == 0) return; /* Offsets within partial pages */ @@ -423,7 +431,7 @@ void truncate_inode_pages_final(struct address_space *mapping) smp_rmb(); nrshadows = mapping->nrshadows; - if (nrpages || nrshadows) { + if (nrpages || nrshadows || mapping->nrdax) { /* * As truncation uses a lockless tree lookup, cycle * the tree lock to make sure any ongoing tree -- 2.1.0 From ross.zwisler@linux.intel.com Fri Nov 13 18:07:10 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 094CC7F5D for ; Fri, 13 Nov 2015 18:07:10 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id E8A5A8F8081 for ; Fri, 13 Nov 2015 16:07:06 -0800 (PST) X-ASG-Debug-ID: 1447459621-04cb6c0cd349010002-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id qghAzLtjbQq25SL1 for ; Fri, 13 Nov 2015 16:07:04 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 13 Nov 2015 16:07:04 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,289,1444719600"; d="scan'208";a="684969807" Received: from theros.lm.intel.com ([10.232.112.87]) by orsmga003.jf.intel.com with ESMTP; 13 Nov 2015 16:07:02 -0800 From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: [PATCH v2 02/11] mm: add pmd_mkclean() Date: Fri, 13 Nov 2015 17:06:41 -0700 X-ASG-Orig-Subj: [PATCH v2 02/11] mm: add pmd_mkclean() Message-Id: <1447459610-14259-3-git-send-email-ross.zwisler@linux.intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447459622 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 Currently PMD pages can be dirtied via pmd_mkdirty(), but cannot be cleaned. For DAX mmap dirty page tracking we need to be able to clean PMD pages when we flush them to media so that we get a new write fault the next time the are written to. Signed-off-by: Ross Zwisler --- arch/x86/include/asm/pgtable.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 867da5b..c548e4c 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -277,6 +277,11 @@ static inline pmd_t pmd_mkdirty(pmd_t pmd) return pmd_set_flags(pmd, _PAGE_DIRTY | _PAGE_SOFT_DIRTY); } +static inline pmd_t pmd_mkclean(pmd_t pmd) +{ + return pmd_clear_flags(pmd, _PAGE_DIRTY | _PAGE_SOFT_DIRTY); +} + static inline pmd_t pmd_mkhuge(pmd_t pmd) { return pmd_set_flags(pmd, _PAGE_PSE); -- 2.1.0 From ross.zwisler@linux.intel.com Fri Nov 13 18:07:10 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CA2FB7F5A for ; Fri, 13 Nov 2015 18:07:10 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id B5F28304093 for ; Fri, 13 Nov 2015 16:07:10 -0800 (PST) X-ASG-Debug-ID: 1447459621-04cb6c0cd349010004-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id cRHxEA4SOIhsgamb for ; Fri, 13 Nov 2015 16:07:09 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 13 Nov 2015 16:07:08 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,289,1444719600"; d="scan'208";a="684969843" Received: from theros.lm.intel.com ([10.232.112.87]) by orsmga003.jf.intel.com with ESMTP; 13 Nov 2015 16:07:06 -0800 From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: [PATCH v2 05/11] mm: add follow_pte_pmd() Date: Fri, 13 Nov 2015 17:06:44 -0700 X-ASG-Orig-Subj: [PATCH v2 05/11] mm: add follow_pte_pmd() Message-Id: <1447459610-14259-6-git-send-email-ross.zwisler@linux.intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447459628 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 Similar to follow_pte(), follow_pte_pmd() allows either a PTE leaf or a huge page PMD leaf to be found and returned. Signed-off-by: Ross Zwisler Suggested-by: Dave Hansen --- include/linux/mm.h | 2 ++ mm/memory.c | 38 ++++++++++++++++++++++++++++++-------- 2 files changed, 32 insertions(+), 8 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 80001de..393441c 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1166,6 +1166,8 @@ int copy_page_range(struct mm_struct *dst, struct mm_struct *src, struct vm_area_struct *vma); void unmap_mapping_range(struct address_space *mapping, loff_t const holebegin, loff_t const holelen, int even_cows); +int follow_pte_pmd(struct mm_struct *mm, unsigned long address, + pte_t **ptepp, pmd_t **pmdpp, spinlock_t **ptlp); int follow_pfn(struct vm_area_struct *vma, unsigned long address, unsigned long *pfn); int follow_phys(struct vm_area_struct *vma, unsigned long address, diff --git a/mm/memory.c b/mm/memory.c index deb679c..7f4090e 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3512,8 +3512,8 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address) } #endif /* __PAGETABLE_PMD_FOLDED */ -static int __follow_pte(struct mm_struct *mm, unsigned long address, - pte_t **ptepp, spinlock_t **ptlp) +static int __follow_pte_pmd(struct mm_struct *mm, unsigned long address, + pte_t **ptepp, pmd_t **pmdpp, spinlock_t **ptlp) { pgd_t *pgd; pud_t *pud; @@ -3529,12 +3529,20 @@ static int __follow_pte(struct mm_struct *mm, unsigned long address, goto out; pmd = pmd_offset(pud, address); - VM_BUG_ON(pmd_trans_huge(*pmd)); - if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd))) - goto out; - /* We cannot handle huge page PFN maps. Luckily they don't exist. */ - if (pmd_huge(*pmd)) + if (pmd_huge(*pmd)) { + if (!pmdpp) + goto out; + + *ptlp = pmd_lock(mm, pmd); + if (pmd_huge(*pmd)) { + *pmdpp = pmd; + return 0; + } + spin_unlock(*ptlp); + } + + if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd))) goto out; ptep = pte_offset_map_lock(mm, pmd, address, ptlp); @@ -3557,9 +3565,23 @@ static inline int follow_pte(struct mm_struct *mm, unsigned long address, /* (void) is needed to make gcc happy */ (void) __cond_lock(*ptlp, - !(res = __follow_pte(mm, address, ptepp, ptlp))); + !(res = __follow_pte_pmd(mm, address, ptepp, NULL, + ptlp))); + return res; +} + +int follow_pte_pmd(struct mm_struct *mm, unsigned long address, + pte_t **ptepp, pmd_t **pmdpp, spinlock_t **ptlp) +{ + int res; + + /* (void) is needed to make gcc happy */ + (void) __cond_lock(*ptlp, + !(res = __follow_pte_pmd(mm, address, ptepp, pmdpp, + ptlp))); return res; } +EXPORT_SYMBOL(follow_pte_pmd); /** * follow_pfn - look up PFN at a user virtual address -- 2.1.0 From ross.zwisler@linux.intel.com Fri Nov 13 18:07:13 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1A3AC7F62 for ; Fri, 13 Nov 2015 18:07:13 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6AEF6AC011 for ; Fri, 13 Nov 2015 16:07:12 -0800 (PST) X-ASG-Debug-ID: 1447459621-04cb6c0cd349010005-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id 7ge1G27wmzYCbe0c for ; Fri, 13 Nov 2015 16:07:10 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 13 Nov 2015 16:07:10 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,289,1444719600"; d="scan'208";a="684969856" Received: from theros.lm.intel.com ([10.232.112.87]) by orsmga003.jf.intel.com with ESMTP; 13 Nov 2015 16:07:08 -0800 From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: [PATCH v2 06/11] mm: add pgoff_mkclean() Date: Fri, 13 Nov 2015 17:06:45 -0700 X-ASG-Orig-Subj: [PATCH v2 06/11] mm: add pgoff_mkclean() Message-Id: <1447459610-14259-7-git-send-email-ross.zwisler@linux.intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447459630 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 Introduce pgoff_mkclean() which conceptually is similar to page_mkclean() except it works in the absence of struct page and it can also be used to clean PMDs. This is needed for DAX's dirty page handling. pgoff_mkclean() doesn't return an error for a missing PTE/PMD when looping through the VMAs because it's not a requirement that each of the potentially many VMAs associated with a given struct address_space have a mapping set up for our pgoff. Signed-off-by: Ross Zwisler --- include/linux/rmap.h | 5 +++++ mm/rmap.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 56 insertions(+) diff --git a/include/linux/rmap.h b/include/linux/rmap.h index 29446ae..171a4ac 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -223,6 +223,11 @@ unsigned long page_address_in_vma(struct page *, struct vm_area_struct *); int page_mkclean(struct page *); /* + * Cleans and write protects the PTEs of shared mappings. + */ +void pgoff_mkclean(pgoff_t, struct address_space *); + +/* * called in munlock()/munmap() path to check for other vmas holding * the page mlocked. */ diff --git a/mm/rmap.c b/mm/rmap.c index f5b5c1f..8114862 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -586,6 +586,16 @@ vma_address(struct page *page, struct vm_area_struct *vma) return address; } +static inline unsigned long +pgoff_address(pgoff_t pgoff, struct vm_area_struct *vma) +{ + unsigned long address; + + address = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT); + VM_BUG_ON_VMA(address < vma->vm_start || address >= vma->vm_end, vma); + return address; +} + #ifdef CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH static void percpu_flush_tlb_batch_pages(void *data) { @@ -1040,6 +1050,47 @@ int page_mkclean(struct page *page) } EXPORT_SYMBOL_GPL(page_mkclean); +void pgoff_mkclean(pgoff_t pgoff, struct address_space *mapping) +{ + struct vm_area_struct *vma; + int ret = 0; + + i_mmap_lock_read(mapping); + vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) { + struct mm_struct *mm = vma->vm_mm; + pmd_t pmd, *pmdp = NULL; + pte_t pte, *ptep = NULL; + unsigned long address; + spinlock_t *ptl; + + address = pgoff_address(pgoff, vma); + + /* when this returns successfully ptl is locked */ + ret = follow_pte_pmd(mm, address, &ptep, &pmdp, &ptl); + if (ret) + continue; + + if (pmdp) { + flush_cache_page(vma, address, pmd_pfn(*pmdp)); + pmd = pmdp_huge_clear_flush(vma, address, pmdp); + pmd = pmd_wrprotect(pmd); + pmd = pmd_mkclean(pmd); + set_pmd_at(mm, address, pmdp, pmd); + spin_unlock(ptl); + } else { + BUG_ON(!ptep); + flush_cache_page(vma, address, pte_pfn(*ptep)); + pte = ptep_clear_flush(vma, address, ptep); + pte = pte_wrprotect(pte); + pte = pte_mkclean(pte); + set_pte_at(mm, address, ptep, pte); + pte_unmap_unlock(ptep, ptl); + } + } + i_mmap_unlock_read(mapping); +} +EXPORT_SYMBOL_GPL(pgoff_mkclean); + /** * page_move_anon_rmap - move a page to our anon_vma * @page: the page to move to our anon_vma -- 2.1.0 From ross.zwisler@linux.intel.com Fri Nov 13 18:07:13 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 948327F62 for ; Fri, 13 Nov 2015 18:07:13 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8442D8F807A for ; Fri, 13 Nov 2015 16:07:13 -0800 (PST) X-ASG-Debug-ID: 1447459621-04cb6c0cd349010006-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id YR7J3K8kGhHZgghZ for ; Fri, 13 Nov 2015 16:07:11 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 13 Nov 2015 16:07:11 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,289,1444719600"; d="scan'208";a="684969873" Received: from theros.lm.intel.com ([10.232.112.87]) by orsmga003.jf.intel.com with ESMTP; 13 Nov 2015 16:07:09 -0800 From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: [PATCH v2 07/11] mm: add find_get_entries_tag() Date: Fri, 13 Nov 2015 17:06:46 -0700 X-ASG-Orig-Subj: [PATCH v2 07/11] mm: add find_get_entries_tag() Message-Id: <1447459610-14259-8-git-send-email-ross.zwisler@linux.intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447459631 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 Add find_get_entries_tag() to the family of functions that include find_get_entries(), find_get_pages() and find_get_pages_tag(). This is needed for DAX dirty page handling because we need a list of both page offsets and radix tree entries ('indices' and 'entries' in this function) that are marked with the PAGECACHE_TAG_TOWRITE tag. Signed-off-by: Ross Zwisler --- include/linux/pagemap.h | 3 +++ mm/filemap.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 64 insertions(+) diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index a6c78e0..6fea3be 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -354,6 +354,9 @@ unsigned find_get_pages_contig(struct address_space *mapping, pgoff_t start, unsigned int nr_pages, struct page **pages); unsigned find_get_pages_tag(struct address_space *mapping, pgoff_t *index, int tag, unsigned int nr_pages, struct page **pages); +unsigned find_get_entries_tag(struct address_space *mapping, pgoff_t start, + int tag, unsigned int nr_entries, + struct page **entries, pgoff_t *indices); struct page *grab_cache_page_write_begin(struct address_space *mapping, pgoff_t index, unsigned flags); diff --git a/mm/filemap.c b/mm/filemap.c index d5e94fd..89ab448 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1454,6 +1454,67 @@ repeat: } EXPORT_SYMBOL(find_get_pages_tag); +/** + * find_get_entries_tag - find and return entries that match @tag + * @mapping: the address_space to search + * @start: the starting page cache index + * @tag: the tag index + * @nr_entries: the maximum number of entries + * @entries: where the resulting entries are placed + * @indices: the cache indices corresponding to the entries in @entries + * + * Like find_get_entries, except we only return entries which are tagged with + * @tag. + */ +unsigned find_get_entries_tag(struct address_space *mapping, pgoff_t start, + int tag, unsigned int nr_entries, + struct page **entries, pgoff_t *indices) +{ + void **slot; + unsigned int ret = 0; + struct radix_tree_iter iter; + + if (!nr_entries) + return 0; + + rcu_read_lock(); +restart: + radix_tree_for_each_tagged(slot, &mapping->page_tree, + &iter, start, tag) { + struct page *page; +repeat: + page = radix_tree_deref_slot(slot); + if (unlikely(!page)) + continue; + if (radix_tree_exception(page)) { + if (radix_tree_deref_retry(page)) + goto restart; + /* + * A shadow entry of a recently evicted page, a swap + * entry from shmem/tmpfs or a DAX entry. Return it + * without attempting to raise page count. + */ + goto export; + } + if (!page_cache_get_speculative(page)) + goto repeat; + + /* Has the page moved? */ + if (unlikely(page != *slot)) { + page_cache_release(page); + goto repeat; + } +export: + indices[ret] = iter.index; + entries[ret] = page; + if (++ret == nr_entries) + break; + } + rcu_read_unlock(); + return ret; +} +EXPORT_SYMBOL(find_get_entries_tag); + /* * CD/DVDs are error prone. When a medium error occurs, the driver may fail * a _large_ part of the i/o request. Imagine the worst scenario: -- 2.1.0 From ross.zwisler@linux.intel.com Fri Nov 13 18:07:17 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 644047F5A for ; Fri, 13 Nov 2015 18:07:17 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 46B96304096 for ; Fri, 13 Nov 2015 16:07:17 -0800 (PST) X-ASG-Debug-ID: 1447459634-04cbb0605d4e480001-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id wPNLh3c0rIbi1Ocg for ; Fri, 13 Nov 2015 16:07:14 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 13 Nov 2015 16:07:12 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,289,1444719600"; d="scan'208";a="684969898" Received: from theros.lm.intel.com ([10.232.112.87]) by orsmga003.jf.intel.com with ESMTP; 13 Nov 2015 16:07:11 -0800 From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: [PATCH v2 08/11] dax: add support for fsync/sync Date: Fri, 13 Nov 2015 17:06:47 -0700 X-ASG-Orig-Subj: [PATCH v2 08/11] dax: add support for fsync/sync Message-Id: <1447459610-14259-9-git-send-email-ross.zwisler@linux.intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447459634 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 To properly handle fsync/msync in an efficient way DAX needs to track dirty pages so it is able to flush them durably to media on demand. The tracking of dirty pages is done via the radix tree in struct address_space. This radix tree is already used by the page writeback infrastructure for tracking dirty pages associated with an open file, and it already has support for exceptional (non struct page*) entries. We build upon these features to add exceptional entries to the radix tree for DAX dirty PMD or PTE pages at fault time. When called as part of the msync/fsync flush path DAX queries the radix tree for dirty entries, flushing them and then marking the PTE or PMD page table entries as clean. The step of cleaning the PTE or PMD entries is necessary so that on subsequent writes to the same page we get a new write fault allowing us to once again dirty the DAX tag in the radix tree. Signed-off-by: Ross Zwisler --- fs/dax.c | 140 +++++++++++++++++++++++++++++++++++++++++++++++++--- include/linux/dax.h | 1 + mm/huge_memory.c | 14 +++--- 3 files changed, 141 insertions(+), 14 deletions(-) diff --git a/fs/dax.c b/fs/dax.c index 131fd35a..9ce6d1b 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -24,7 +24,9 @@ #include #include #include +#include #include +#include #include #include #include @@ -287,6 +289,53 @@ static int copy_user_bh(struct page *to, struct buffer_head *bh, return 0; } +static int dax_dirty_pgoff(struct address_space *mapping, unsigned long pgoff, + void __pmem *addr, bool pmd_entry) +{ + struct radix_tree_root *page_tree = &mapping->page_tree; + int error = 0; + void *entry; + + __mark_inode_dirty(mapping->host, I_DIRTY_PAGES); + + spin_lock_irq(&mapping->tree_lock); + entry = radix_tree_lookup(page_tree, pgoff); + if (addr == NULL) { + if (entry) + goto dirty; + else { + WARN(1, "DAX pfn_mkwrite failed to find an entry"); + goto out; + } + } + + if (entry) { + if (pmd_entry && RADIX_DAX_TYPE(entry) == RADIX_DAX_PTE) { + radix_tree_delete(&mapping->page_tree, pgoff); + mapping->nrdax--; + } else + goto dirty; + } + + BUG_ON(RADIX_DAX_TYPE(addr)); + if (pmd_entry) + error = radix_tree_insert(page_tree, pgoff, + RADIX_DAX_PMD_ENTRY(addr)); + else + error = radix_tree_insert(page_tree, pgoff, + RADIX_DAX_PTE_ENTRY(addr)); + + if (error) + goto out; + + mapping->nrdax++; + dirty: + radix_tree_tag_set(page_tree, pgoff, PAGECACHE_TAG_DIRTY); + out: + spin_unlock_irq(&mapping->tree_lock); + return error; +} + static int dax_insert_mapping(struct inode *inode, struct buffer_head *bh, struct vm_area_struct *vma, struct vm_fault *vmf) { @@ -327,7 +376,10 @@ static int dax_insert_mapping(struct inode *inode, struct buffer_head *bh, } error = vm_insert_mixed(vma, vaddr, pfn); + if (error) + goto out; + error = dax_dirty_pgoff(mapping, vmf->pgoff, addr, false); out: i_mmap_unlock_read(mapping); @@ -450,6 +502,7 @@ int __dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf, delete_from_page_cache(page); unlock_page(page); page_cache_release(page); + page = NULL; } /* @@ -537,7 +590,7 @@ int __dax_pmd_fault(struct vm_area_struct *vma, unsigned long address, pgoff_t size, pgoff; sector_t block, sector; unsigned long pfn; - int result = 0; + int error, result = 0; /* Fall back to PTEs if we're going to COW */ if (write && !(vma->vm_flags & VM_SHARED)) @@ -638,6 +691,10 @@ int __dax_pmd_fault(struct vm_area_struct *vma, unsigned long address, } result |= vmf_insert_pfn_pmd(vma, address, pmd, pfn, write); + + error = dax_dirty_pgoff(mapping, pgoff, kaddr, true); + if (error) + goto fallback; } out: @@ -689,15 +746,12 @@ EXPORT_SYMBOL_GPL(dax_pmd_fault); * dax_pfn_mkwrite - handle first write to DAX page * @vma: The virtual memory area where the fault occurred * @vmf: The description of the fault - * */ int dax_pfn_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) { - struct super_block *sb = file_inode(vma->vm_file)->i_sb; + struct file *file = vma->vm_file; - sb_start_pagefault(sb); - file_update_time(vma->vm_file); - sb_end_pagefault(sb); + dax_dirty_pgoff(file->f_mapping, vmf->pgoff, NULL, false); return VM_FAULT_NOPAGE; } EXPORT_SYMBOL_GPL(dax_pfn_mkwrite); @@ -772,3 +826,77 @@ int dax_truncate_page(struct inode *inode, loff_t from, get_block_t get_block) return dax_zero_page_range(inode, from, length, get_block); } EXPORT_SYMBOL_GPL(dax_truncate_page); + +static void dax_sync_entry(struct address_space *mapping, pgoff_t pgoff, + void *entry) +{ + struct radix_tree_root *page_tree = &mapping->page_tree; + int type = RADIX_DAX_TYPE(entry); + size_t size; + + BUG_ON(type != RADIX_DAX_PTE && type != RADIX_DAX_PMD); + + spin_lock_irq(&mapping->tree_lock); + if (!radix_tree_tag_get(page_tree, pgoff, PAGECACHE_TAG_TOWRITE)) { + /* another fsync thread already wrote back this entry */ + spin_unlock_irq(&mapping->tree_lock); + return; + } + radix_tree_tag_clear(page_tree, pgoff, PAGECACHE_TAG_TOWRITE); + radix_tree_tag_clear(page_tree, pgoff, PAGECACHE_TAG_DIRTY); + spin_unlock_irq(&mapping->tree_lock); + + if (type == RADIX_DAX_PMD) + size = PMD_SIZE; + else + size = PAGE_SIZE; + + wb_cache_pmem(RADIX_DAX_ADDR(entry), size); + pgoff_mkclean(pgoff, mapping); +} + +/* + * Flush the mapping to the persistent domain within the byte range of (start, + * end). This is required by data integrity operations to ensure file data is on + * persistent storage prior to completion of the operation. It also requires us + * to clean the mappings (i.e. write -> RO) so that we'll get a new fault when + * the file is written to again so we have an indication that we need to flush + * the mapping if a data integrity operation takes place. + * + * We don't need commits to storage here - the filesystems will issue flushes + * appropriately at the conclusion of the data integrity operation via REQ_FUA + * writes or blkdev_issue_flush() commands. This requires the DAX block device + * to implement persistent storage domain fencing/commits on receiving a + * REQ_FLUSH or REQ_FUA request so that this works as expected by the higher + * layers. + */ +void dax_fsync(struct address_space *mapping, loff_t start, loff_t end) +{ + struct inode *inode = mapping->host; + pgoff_t indices[PAGEVEC_SIZE]; + struct pagevec pvec; + int i; + + pgoff_t start_page = start >> PAGE_CACHE_SHIFT; + pgoff_t end_page = end >> PAGE_CACHE_SHIFT; + + if (mapping->nrdax == 0) + return; + + BUG_ON(inode->i_blkbits != PAGE_SHIFT); + + tag_pages_for_writeback(mapping, start_page, end_page); + + pagevec_init(&pvec, 0); + while (1) { + pvec.nr = find_get_entries_tag(mapping, start_page, + PAGECACHE_TAG_TOWRITE, PAGEVEC_SIZE, + pvec.pages, indices); + + if (pvec.nr == 0) + break; + + for (i = 0; i < pvec.nr; i++) + dax_sync_entry(mapping, indices[i], pvec.pages[i]); + } +} diff --git a/include/linux/dax.h b/include/linux/dax.h index e9d57f68..2b3ce6f 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -41,4 +41,5 @@ static inline bool dax_mapping(struct address_space *mapping) { return mapping->host && IS_DAX(mapping->host); } +void dax_fsync(struct address_space *mapping, loff_t start, loff_t end); #endif diff --git a/mm/huge_memory.c b/mm/huge_memory.c index bbac913..1b3df56 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -877,15 +877,13 @@ static void insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr, spinlock_t *ptl; ptl = pmd_lock(mm, pmd); - if (pmd_none(*pmd)) { - entry = pmd_mkhuge(pfn_pmd(pfn, prot)); - if (write) { - entry = pmd_mkyoung(pmd_mkdirty(entry)); - entry = maybe_pmd_mkwrite(entry, vma); - } - set_pmd_at(mm, addr, pmd, entry); - update_mmu_cache_pmd(vma, addr, pmd); + entry = pmd_mkhuge(pfn_pmd(pfn, prot)); + if (write) { + entry = pmd_mkyoung(pmd_mkdirty(entry)); + entry = maybe_pmd_mkwrite(entry, vma); } + set_pmd_at(mm, addr, pmd, entry); + update_mmu_cache_pmd(vma, addr, pmd); spin_unlock(ptl); } -- 2.1.0 From ross.zwisler@linux.intel.com Fri Nov 13 18:07:19 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4FF7C7F5D for ; Fri, 13 Nov 2015 18:07:19 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 401F48F808F for ; Fri, 13 Nov 2015 16:07:19 -0800 (PST) X-ASG-Debug-ID: 1447459634-04cbb0605d4e480002-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id YtZtoGaqMKcv2U1D for ; Fri, 13 Nov 2015 16:07:17 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 13 Nov 2015 16:07:14 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,289,1444719600"; d="scan'208";a="684969923" Received: from theros.lm.intel.com ([10.232.112.87]) by orsmga003.jf.intel.com with ESMTP; 13 Nov 2015 16:07:12 -0800 From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: [PATCH v2 09/11] ext2: add support for DAX fsync/msync Date: Fri, 13 Nov 2015 17:06:48 -0700 X-ASG-Orig-Subj: [PATCH v2 09/11] ext2: add support for DAX fsync/msync Message-Id: <1447459610-14259-10-git-send-email-ross.zwisler@linux.intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447459635 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 To properly support the new DAX fsync/msync infrastructure filesystems need to call dax_pfn_mkwrite() so that DAX can properly track when a user write faults on a previously cleaned address. They also need to call dax_fsync() in the filesystem fsync() path. This dax_fsync() call uses addresses retrieved from get_block() so it needs to be ordered with respect to truncate. This is accomplished by using the same locking that was set up for DAX page faults. Signed-off-by: Ross Zwisler --- fs/ext2/file.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/fs/ext2/file.c b/fs/ext2/file.c index 11a42c5..6c30ea2 100644 --- a/fs/ext2/file.c +++ b/fs/ext2/file.c @@ -102,8 +102,8 @@ static int ext2_dax_pfn_mkwrite(struct vm_area_struct *vma, { struct inode *inode = file_inode(vma->vm_file); struct ext2_inode_info *ei = EXT2_I(inode); - int ret = VM_FAULT_NOPAGE; loff_t size; + int ret; sb_start_pagefault(inode->i_sb); file_update_time(vma->vm_file); @@ -113,6 +113,8 @@ static int ext2_dax_pfn_mkwrite(struct vm_area_struct *vma, size = (i_size_read(inode) + PAGE_SIZE - 1) >> PAGE_SHIFT; if (vmf->pgoff >= size) ret = VM_FAULT_SIGBUS; + else + ret = dax_pfn_mkwrite(vma, vmf); up_read(&ei->dax_sem); sb_end_pagefault(inode->i_sb); @@ -161,6 +163,16 @@ int ext2_fsync(struct file *file, loff_t start, loff_t end, int datasync) struct super_block *sb = file->f_mapping->host->i_sb; struct address_space *mapping = sb->s_bdev->bd_inode->i_mapping; +#ifdef CONFIG_FS_DAX + if (dax_mapping(mapping)) { + struct ext2_inode_info *ei = EXT2_I(file_inode(file)); + + down_read(&ei->dax_sem); + dax_fsync(mapping, start, end); + up_read(&ei->dax_sem); + } +#endif + ret = generic_file_fsync(file, start, end, datasync); if (ret == -EIO || test_and_clear_bit(AS_EIO, &mapping->flags)) { /* We don't really know where the IO error happened... */ -- 2.1.0 From ross.zwisler@linux.intel.com Fri Nov 13 18:07:22 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 987277F5D for ; Fri, 13 Nov 2015 18:07:22 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 183ECAC009 for ; Fri, 13 Nov 2015 16:07:22 -0800 (PST) X-ASG-Debug-ID: 1447459634-04cbb0605d4e480003-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id LAcQcag9i3dFigdC for ; Fri, 13 Nov 2015 16:07:20 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 13 Nov 2015 16:07:16 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,289,1444719600"; d="scan'208";a="684969929" Received: from theros.lm.intel.com ([10.232.112.87]) by orsmga003.jf.intel.com with ESMTP; 13 Nov 2015 16:07:14 -0800 From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: [PATCH v2 10/11] ext4: add support for DAX fsync/msync Date: Fri, 13 Nov 2015 17:06:49 -0700 X-ASG-Orig-Subj: [PATCH v2 10/11] ext4: add support for DAX fsync/msync Message-Id: <1447459610-14259-11-git-send-email-ross.zwisler@linux.intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447459638 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 To properly support the new DAX fsync/msync infrastructure filesystems need to call dax_pfn_mkwrite() so that DAX can properly track when a user write faults on a previously cleaned address. They also need to call dax_fsync() in the filesystem fsync() path. This dax_fsync() call uses addresses retrieved from get_block() so it needs to be ordered with respect to truncate. This is accomplished by using the same locking that was set up for DAX page faults. Signed-off-by: Ross Zwisler --- fs/ext4/file.c | 4 +++- fs/ext4/fsync.c | 12 ++++++++++-- 2 files changed, 13 insertions(+), 3 deletions(-) diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 749b222..8c8965c 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -291,8 +291,8 @@ static int ext4_dax_pfn_mkwrite(struct vm_area_struct *vma, { struct inode *inode = file_inode(vma->vm_file); struct super_block *sb = inode->i_sb; - int ret = VM_FAULT_NOPAGE; loff_t size; + int ret; sb_start_pagefault(sb); file_update_time(vma->vm_file); @@ -300,6 +300,8 @@ static int ext4_dax_pfn_mkwrite(struct vm_area_struct *vma, size = (i_size_read(inode) + PAGE_SIZE - 1) >> PAGE_SHIFT; if (vmf->pgoff >= size) ret = VM_FAULT_SIGBUS; + else + ret = dax_pfn_mkwrite(vma, vmf); up_read(&EXT4_I(inode)->i_mmap_sem); sb_end_pagefault(sb); diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c index 8850254..e87c29b 100644 --- a/fs/ext4/fsync.c +++ b/fs/ext4/fsync.c @@ -27,6 +27,7 @@ #include #include #include +#include #include "ext4.h" #include "ext4_jbd2.h" @@ -86,7 +87,8 @@ static int ext4_sync_parent(struct inode *inode) int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync) { - struct inode *inode = file->f_mapping->host; + struct address_space *mapping = file->f_mapping; + struct inode *inode = mapping->host; struct ext4_inode_info *ei = EXT4_I(inode); journal_t *journal = EXT4_SB(inode->i_sb)->s_journal; int ret = 0, err; @@ -112,7 +114,13 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync) goto out; } - ret = filemap_write_and_wait_range(inode->i_mapping, start, end); + if (dax_mapping(mapping)) { + down_read(&ei->i_mmap_sem); + dax_fsync(mapping, start, end); + up_read(&ei->i_mmap_sem); + } + + ret = filemap_write_and_wait_range(mapping, start, end); if (ret) return ret; /* -- 2.1.0 From ross.zwisler@linux.intel.com Fri Nov 13 18:07:23 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 102DF7F5A for ; Fri, 13 Nov 2015 18:07:23 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 003DC30408F for ; Fri, 13 Nov 2015 16:07:22 -0800 (PST) X-ASG-Debug-ID: 1447459634-04cbb0605d4e480004-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id j6AGgPxshpqGqm0D for ; Fri, 13 Nov 2015 16:07:21 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP; 13 Nov 2015 16:07:17 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,289,1444719600"; d="scan'208";a="684969946" Received: from theros.lm.intel.com ([10.232.112.87]) by orsmga003.jf.intel.com with ESMTP; 13 Nov 2015 16:07:15 -0800 From: Ross Zwisler To: linux-kernel@vger.kernel.org Cc: Ross Zwisler , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: [PATCH v2 11/11] xfs: add support for DAX fsync/msync Date: Fri, 13 Nov 2015 17:06:50 -0700 X-ASG-Orig-Subj: [PATCH v2 11/11] xfs: add support for DAX fsync/msync Message-Id: <1447459610-14259-12-git-send-email-ross.zwisler@linux.intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447459641 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 To properly support the new DAX fsync/msync infrastructure filesystems need to call dax_pfn_mkwrite() so that DAX can properly track when a user write faults on a previously cleaned address. They also need to call dax_fsync() in the filesystem fsync() path. This dax_fsync() call uses addresses retrieved from get_block() so it needs to be ordered with respect to truncate. This is accomplished by using the same locking that was set up for DAX page faults. Signed-off-by: Ross Zwisler --- fs/xfs/xfs_file.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 39743ef..2b490a1 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -209,7 +209,8 @@ xfs_file_fsync( loff_t end, int datasync) { - struct inode *inode = file->f_mapping->host; + struct address_space *mapping = file->f_mapping; + struct inode *inode = mapping->host; struct xfs_inode *ip = XFS_I(inode); struct xfs_mount *mp = ip->i_mount; int error = 0; @@ -218,7 +219,13 @@ xfs_file_fsync( trace_xfs_file_fsync(ip); - error = filemap_write_and_wait_range(inode->i_mapping, start, end); + if (dax_mapping(mapping)) { + xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED); + dax_fsync(mapping, start, end); + xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED); + } + + error = filemap_write_and_wait_range(mapping, start, end); if (error) return error; @@ -1603,9 +1610,8 @@ xfs_filemap_pmd_fault( /* * pfn_mkwrite was originally inteneded to ensure we capture time stamp * updates on write faults. In reality, it's need to serialise against - * truncate similar to page_mkwrite. Hence we open-code dax_pfn_mkwrite() - * here and cycle the XFS_MMAPLOCK_SHARED to ensure we serialise the fault - * barrier in place. + * truncate similar to page_mkwrite. Hence we cycle the XFS_MMAPLOCK_SHARED + * to ensure we serialise the fault barrier in place. */ static int xfs_filemap_pfn_mkwrite( @@ -1628,6 +1634,8 @@ xfs_filemap_pfn_mkwrite( size = (i_size_read(inode) + PAGE_SIZE - 1) >> PAGE_SHIFT; if (vmf->pgoff >= size) ret = VM_FAULT_SIGBUS; + else if (IS_DAX(inode)) + ret = dax_pfn_mkwrite(vma, vmf); xfs_iunlock(ip, XFS_MMAPLOCK_SHARED); sb_end_pagefault(inode->i_sb); return ret; -- 2.1.0 From dan.j.williams@intel.com Fri Nov 13 18:20:43 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 32E377F5A for ; Fri, 13 Nov 2015 18:20:43 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 112298F80A1 for ; Fri, 13 Nov 2015 16:20:42 -0800 (PST) X-ASG-Debug-ID: 1447460440-04cb6c0cd249960001-NocioJ Received: from mail-wm0-f43.google.com (mail-wm0-f43.google.com [74.125.82.43]) by cuda.sgi.com with ESMTP id 5WeMclriDTWcAPpX (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 13 Nov 2015 16:20:40 -0800 (PST) X-Barracuda-Envelope-From: dan.j.williams@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.43 Received: by wmec201 with SMTP id c201so51920558wme.1 for ; Fri, 13 Nov 2015 16:20:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=IY+Terkz3WO7LQ7CdwwNh6+eiIv46gLyobGqgFDqPjk=; b=m1TeuW3N+XVqVTzsqARN++GBguqGKu5pEeTUCexSiYCsY5naJ8KYYXpygHq7pXufd6 oy/bWYIbc2/e9W+MuV0GYDpMw4jQpA1GFz4aAQcjQ4ypXM6p276ba88JxhpQlJYCDJkR C1V/Mhpwp+dMMqbBltrn3EKEB5T5wk148cdH0nrJz0jFkbccQIcmfaiRvbIJrhQ/HpdE qgj9bJds1cbnC0K7RhEJYnTj9xyv8D9ZNVqWaBuVGDbzC83j9F8gd6W3Yjas502bG2bG 4oSUYzA0Q0JV3uvDQeQWJtIUn5EmgYrXzi5LHY+2LO9w7azfueMQJ8tf/oPOGmTQesBQ Oasw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=IY+Terkz3WO7LQ7CdwwNh6+eiIv46gLyobGqgFDqPjk=; b=IQOpuypHaR6YmSLXn5HyFXy+Z05jMsXh1DUs4BOxfXzSRsAbeCtsr89fQ67XuOxKAP zIhSPAt+CSZfwNA3oi7SwtSGGDtIzQUkpaBHIo+1rH8xOPJkCn9v+1CNzwU3YNbXYu1Q NY6yRqn6aaO1fYNxVnkLFTTcqKbsABrT0FLq7nrM+zRNjBw2OXLp5frvFFlM165RWk42 MJpzQIlhIwfiNjdGN2ewxqEi7fsJR5ZT1qslYFC7IOeOXbIAwI2hRVjwcy0haFaJVRZP gu3Ocs2JToqSjpiMyLMy6KiPTVfsVQV0Bzm65AlMO1d8gdAjQiK5wa1fDGC2z5kZhnxg uUPg== X-Gm-Message-State: ALoCoQnEOUHXefTa2YQXYAdZWaJU5MglL+P5Kp2j64GO1YfER0GdiW1dcR8OkALB0kO/yQ/2Kq2y MIME-Version: 1.0 X-Received: by 10.194.186.170 with SMTP id fl10mr25441833wjc.91.1447460439998; Fri, 13 Nov 2015 16:20:39 -0800 (PST) Received: by 10.27.88.130 with HTTP; Fri, 13 Nov 2015 16:20:39 -0800 (PST) In-Reply-To: <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> Date: Fri, 13 Nov 2015 16:20:39 -0800 Message-ID: Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling From: Dan Williams X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling To: Ross Zwisler Cc: "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f43.google.com[74.125.82.43] X-Barracuda-Start-Time: 1447460440 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Nov 13, 2015 at 4:06 PM, Ross Zwisler wrote: > Currently the PMEM driver doesn't accept REQ_FLUSH or REQ_FUA bios. These > are sent down via blkdev_issue_flush() in response to a fsync() or msync() > and are used by filesystems to order their metadata, among other things. > > When we get an msync() or fsync() it is the responsibility of the DAX code > to flush all dirty pages to media. The PMEM driver then just has issue a > wmb_pmem() in response to the REQ_FLUSH to ensure that before we return all > the flushed data has been durably stored on the media. > > Signed-off-by: Ross Zwisler Hmm, I'm not seeing why we need this patch. If the actual flushing of the cache is done by the core why does the driver need support REQ_FLUSH? Especially since it's just a couple instructions. REQ_FUA only makes sense if individual writes can bypass the "drive" cache, but no I/O submitted to the driver proper is ever cached we always flush it through to media. From adilger@dilger.ca Fri Nov 13 18:43:39 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 32A3F7F5A for ; Fri, 13 Nov 2015 18:43:39 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id AC4F5AC01B for ; Fri, 13 Nov 2015 16:43:38 -0800 (PST) X-ASG-Debug-ID: 1447461815-04cb6c0cd34a500001-NocioJ Received: from mail-pa0-f46.google.com (mail-pa0-f46.google.com [209.85.220.46]) by cuda.sgi.com with ESMTP id eeATjeBjBfIIXzWU (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 13 Nov 2015 16:43:35 -0800 (PST) X-Barracuda-Envelope-From: adilger@dilger.ca X-Barracuda-Apparent-Source-IP: 209.85.220.46 Received: by pacej9 with SMTP id ej9so8428852pac.2 for ; Fri, 13 Nov 2015 16:43:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dilger_ca.20150623.gappssmtp.com; s=20150623; h=subject:mime-version:content-type:from:in-reply-to:date:cc :message-id:references:to; bh=4Bd2fcbtzmuCSDtBoxz0OYGSMbhBMaSdK9ZMD8COeDs=; b=FRtcPR0XF7cuA4iOY1vat9ULQlqU5MTzG+Fj3JzRMSdDQJwGUn1g69o1F8XQc2xFH7 pMURBGhyLkx7I0z0aDjNI9B5yPHStdC+9xWePHiHxnuvrhZqQ4ZaxK9qfbAT5Nzn1RNg UKFhMwzdOlnrRVOcunyGTpyVtCxWCb+It0HKQYaYKsiVkle+VznmmitiEvqn2lswlW+W vDinfQohq8Ndghmxb+BGgy7Be+vOcavhaA+N7hVQJk1YKjgkY56HPmLdjnHRd4T36qz6 PYXQ9LvYHDq8UDbCvXHhT+RnHjvCxF7WaTQ9PpsdxX9GL2puAajOjaLEZbclTA6gExV/ A1yQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:mime-version:content-type:from :in-reply-to:date:cc:message-id:references:to; bh=4Bd2fcbtzmuCSDtBoxz0OYGSMbhBMaSdK9ZMD8COeDs=; b=fWRfsI/Xf2R8ZL0FcwXx7DExFZtw+e+lxO/ZmqH6pgdlMPNC83FjRunC7NZkFBv8w6 /nOZ/6YPvLqeAT/oW1UhRdAsZOOmjJZRCZA8rCLVFYKgH9x4B1brMqExBpS9aIkPq0bN s/jYgGGrZKqn3mRZvUhKs1o1+hbkAcEQL1Av/OSw3hf8WcYV3zoqyPEe1eaMwzxAffB4 srK/kx9+e7fLkc8C+7FsoFGTm56zdxnixhCcwFY/exJOFhEtmo72aJLKsh7KyHR4h5Ed M5bah7M3y1VX90wDPFmwKTXlWKO9E3EvjJDvjESanPmjjttN/QIcavd7NE4djDOV3foa Dhgg== X-Gm-Message-State: ALoCoQnUuOkKt1+ApWV6CFrjlaWdklOQboujWP7z5hv0ylDkQN1MqDwgCMQw1mqWI+zApZpd2B1g X-Received: by 10.66.140.39 with SMTP id rd7mr36788052pab.86.1447461814733; Fri, 13 Nov 2015 16:43:34 -0800 (PST) Received: from cabot-wlan.adilger.int (S0106002191d9348b.cg.shawcable.net. [96.51.76.157]) by smtp.gmail.com with ESMTPSA id ef2sm22560202pbc.92.2015.11.13.16.43.32 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 13 Nov 2015 16:43:33 -0800 (PST) Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Content-Type: multipart/signed; boundary="Apple-Mail=_1216766E-B738-4495-BFC0-CB153BFD6B45"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Pgp-Agent: GPGMail 2.5.2 From: Andreas Dilger In-Reply-To: Date: Fri, 13 Nov 2015 17:43:28 -0700 Cc: Ross Zwisler , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Message-Id: <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> To: Dan Williams X-Mailer: Apple Mail (2.2104) X-Barracuda-Connect: mail-pa0-f46.google.com[209.85.220.46] X-Barracuda-Start-Time: 1447461815 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature --Apple-Mail=_1216766E-B738-4495-BFC0-CB153BFD6B45 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On Nov 13, 2015, at 5:20 PM, Dan Williams = wrote: >=20 > On Fri, Nov 13, 2015 at 4:06 PM, Ross Zwisler > wrote: >> Currently the PMEM driver doesn't accept REQ_FLUSH or REQ_FUA bios. = These >> are sent down via blkdev_issue_flush() in response to a fsync() or = msync() >> and are used by filesystems to order their metadata, among other = things. >>=20 >> When we get an msync() or fsync() it is the responsibility of the DAX = code >> to flush all dirty pages to media. The PMEM driver then just has = issue a >> wmb_pmem() in response to the REQ_FLUSH to ensure that before we = return all >> the flushed data has been durably stored on the media. >>=20 >> Signed-off-by: Ross Zwisler >=20 > Hmm, I'm not seeing why we need this patch. If the actual flushing of > the cache is done by the core why does the driver need support > REQ_FLUSH? Especially since it's just a couple instructions. REQ_FUA > only makes sense if individual writes can bypass the "drive" cache, > but no I/O submitted to the driver proper is ever cached we always > flush it through to media. If the upper level filesystem gets an error when submitting a flush request, then it assumes the underlying hardware is broken and cannot be as aggressive in IO submission, but instead has to wait for in-flight IO to complete. Since FUA/FLUSH is basically a no-op for pmem devices, it doesn't make sense _not_ to support this functionality. Cheers, Andreas --Apple-Mail=_1216766E-B738-4495-BFC0-CB153BFD6B45 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIVAwUBVkaDsXKl2rkXzB/gAQibwBAAgoTcZevnn7sprjKcrySWAvw9bcubKzY8 W4c6wkFftY8858ROsblZ/0+OhZPFlf2zJ2G3g+8sJ4Upv1s0MpyGHYS6QVu/QLn3 xy4O7ivbLMtFOfMFWfheKAb8GxJxzpklB5yhyHaMnxtCxEg71K5D9mnqTi/jPIv6 L0yWugsuzeSVeJ423NsFCxRZkWN2wrSuT6PS7bPeN/VBUC8wfU+LMXnmye9+tl1Z EkZWf11PQOz5kkEkN6Xk+ShgAVz7GR6w3jYHxDvNbZ+bDvlPGsV8Wvf+GZIo0Q4/ SdhfRfNG/D2KKQlCAfZyyEdcSRcoSvkhAPny+ocGW9+rUNd86LMllbvfGzkRNH9Y pfocoQZHxcJ9G52XeqVVJvFzajQhPryzdOePg5YwnckY5h6Td0K46THztFKMN51K vXNhhbV/EHy7EjgNOsu+4tTfWrVdSGB4AiKlJlZ4SU5e4FaJxLR00jzm5nVSZpbC NW8NO+uE8deVLw1BJbVFq6S4qm1NshY0EZ4SYuksdJaAwo3kZtdjvbmnFq2Er+ta PVoWA5oJl5pZ0WRxEckchTIXC7iqwgVdBtPBqiAOZ4u+X3caU7kx+hYpjCymozvy 6RdWl1hfgIv5lkJGf1SBOaLz1KSu2ElTtGDbWaQpxnKNnsE0Ye/gTd4m9bb86e+O b5j4DzeyM0E= =ibQq -----END PGP SIGNATURE----- --Apple-Mail=_1216766E-B738-4495-BFC0-CB153BFD6B45-- From dave.hansen@intel.com Fri Nov 13 19:03:03 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0866D7F5A for ; Fri, 13 Nov 2015 19:03:03 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id DF0C88F80CE for ; Fri, 13 Nov 2015 17:02:59 -0800 (PST) X-ASG-Debug-ID: 1447462973-04bdf07f094f3a0001-NocioJ Received: from mga11.intel.com ([192.55.52.93]) by cuda.sgi.com with ESMTP id CoY8yha69U0KhSTm for ; Fri, 13 Nov 2015 17:02:53 -0800 (PST) X-Barracuda-Envelope-From: dave.hansen@intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.93 X-ASG-Whitelist: EmailCat (corporate) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP; 13 Nov 2015 17:02:53 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,289,1444719600"; d="scan'208";a="819571450" Received: from djnaayke-mobl.amr.corp.intel.com (HELO [10.254.116.159]) ([10.254.116.159]) by orsmga001.jf.intel.com with ESMTP; 13 Nov 2015 17:02:48 -0800 Subject: Re: [PATCH v2 02/11] mm: add pmd_mkclean() To: Ross Zwisler , linux-kernel@vger.kernel.org X-ASG-Orig-Subj: Re: [PATCH v2 02/11] mm: add pmd_mkclean() References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-3-git-send-email-ross.zwisler@linux.intel.com> Cc: "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox From: Dave Hansen Message-ID: <56468838.6010506@intel.com> Date: Fri, 13 Nov 2015 17:02:48 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <1447459610-14259-3-git-send-email-ross.zwisler@linux.intel.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: UNKNOWN[192.55.52.93] X-Barracuda-Start-Time: 1447462973 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 11/13/2015 04:06 PM, Ross Zwisler wrote: > +static inline pmd_t pmd_mkclean(pmd_t pmd) > +{ > + return pmd_clear_flags(pmd, _PAGE_DIRTY | _PAGE_SOFT_DIRTY); > +} pte_mkclean() doesn't clear _PAGE_SOFT_DIRTY. What the thought behind doing it here? From dan.j.williams@intel.com Fri Nov 13 20:32:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8C3D67F50 for ; Fri, 13 Nov 2015 20:32:47 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 38DCBAC030 for ; Fri, 13 Nov 2015 18:32:44 -0800 (PST) X-ASG-Debug-ID: 1447468360-04bdf07f08529d0001-NocioJ Received: from mail-wm0-f44.google.com (mail-wm0-f44.google.com [74.125.82.44]) by cuda.sgi.com with ESMTP id l75nREyp8WfHDC2a (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 13 Nov 2015 18:32:41 -0800 (PST) X-Barracuda-Envelope-From: dan.j.williams@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.44 Received: by wmec201 with SMTP id c201so106552505wme.0 for ; Fri, 13 Nov 2015 18:32:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=cAUx42EW9QZf6LP/gz5MdcnBjBopzClnUW/w69zkUa4=; b=UwoCzqq63fc2UPrdckYX9rej02YrNKkft4/y30WGDZoWnIKw8aZ60kUQmi/al4T1D9 sOVaIAgKzqi73MeAZhitmELbUhK1761ThLprqvxgBhlYmLnVZMK5J0+z6kNZztW6csBs zzsV941Qldnb0HSk+axWfxXWOq3OEF26O4k/sXqeSqJXwFfjGKcfLtf2+5bkxwN1pCxR 7yze+2RH5OJHfFyIrHYbcU51dUoVtO4bC2Ssr6jP6wYGqXXvVGDTLYCIC5B/UygWaBFB dWO/VX1Exh2i2cg3BPW6kYwsQRqSff9mgxK7ru5kEhzE3DHqV4UB9xrkM2TSEgUtHgnm R5/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=cAUx42EW9QZf6LP/gz5MdcnBjBopzClnUW/w69zkUa4=; b=lTE8gIz1lQFMK+NjPB/3ejspnmLB+C0GAlytlUPPcyT6XZFunqKYLqIoIOJ9QMZ95W GN3U3c/xLakK1hsMOV2phXh1bzep9BdpwpbFUCRZiitIa5g4/sz70Tpjln8LxWucuSzn QMhRfLkwse7PI2CWUcjI35fN05Gl24UgUPIveeEYHI7ooBdFqSz5IzrI7NHgkpXt3HSh yyiFbAoIEqLgbYp4+fM/UT4WH4B7s+DzhLZo2Jj2ZDhoBJOO6v62BuG62wqo3lR7mvpJ MmSVrclEGn/dCJBmjcuSRR6hzfrVDAMaJpOHQyt2CovSYlA/3vy+Hspp0Ihcr9SCMvMa thVA== X-Gm-Message-State: ALoCoQmwlympo5oD2d4lAd8vALtKovRNgnXReV991M92WtkeDeYBkkrfmCBuROjkQdhMbLhV7nQj MIME-Version: 1.0 X-Received: by 10.28.220.69 with SMTP id t66mr6791474wmg.4.1447468360080; Fri, 13 Nov 2015 18:32:40 -0800 (PST) Received: by 10.27.88.130 with HTTP; Fri, 13 Nov 2015 18:32:40 -0800 (PST) In-Reply-To: <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> Date: Fri, 13 Nov 2015 18:32:40 -0800 Message-ID: Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling From: Dan Williams X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling To: Andreas Dilger Cc: Ross Zwisler , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f44.google.com[74.125.82.44] X-Barracuda-Start-Time: 1447468361 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24378 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Nov 13, 2015 at 4:43 PM, Andreas Dilger wrote: > On Nov 13, 2015, at 5:20 PM, Dan Williams wrote: >> >> On Fri, Nov 13, 2015 at 4:06 PM, Ross Zwisler >> wrote: >>> Currently the PMEM driver doesn't accept REQ_FLUSH or REQ_FUA bios. These >>> are sent down via blkdev_issue_flush() in response to a fsync() or msync() >>> and are used by filesystems to order their metadata, among other things. >>> >>> When we get an msync() or fsync() it is the responsibility of the DAX code >>> to flush all dirty pages to media. The PMEM driver then just has issue a >>> wmb_pmem() in response to the REQ_FLUSH to ensure that before we return all >>> the flushed data has been durably stored on the media. >>> >>> Signed-off-by: Ross Zwisler >> >> Hmm, I'm not seeing why we need this patch. If the actual flushing of >> the cache is done by the core why does the driver need support >> REQ_FLUSH? Especially since it's just a couple instructions. REQ_FUA >> only makes sense if individual writes can bypass the "drive" cache, >> but no I/O submitted to the driver proper is ever cached we always >> flush it through to media. > > If the upper level filesystem gets an error when submitting a flush > request, then it assumes the underlying hardware is broken and cannot > be as aggressive in IO submission, but instead has to wait for in-flight > IO to complete. Upper level filesystems won't get errors when the driver does not support flush. Those requests are ended cleanly in generic_make_request_checks(). Yes, the fs still needs to wait for outstanding I/O to complete but in the case of pmem all I/O is synchronous. There's never anything to await when flushing at the pmem driver level. > Since FUA/FLUSH is basically a no-op for pmem devices, > it doesn't make sense _not_ to support this functionality. Seems to be a nop either way. Given that DAX may lead to dirty data pending to the device in the cpu cache that a REQ_FLUSH request will not touch, its better to leave it all to the mm core to handle. I.e. it doesn't make sense to call the driver just for two instructions (sfence + pcommit) when the mm core is taking on the cache flushing. Either handle it all in the mm or the driver, not a mixture. From BATV+83429bba74d63fe5ba36+4465+infradead.org+hch@bombadil.srs.infradead.org Sat Nov 14 02:41:13 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E80AA7F4E for ; Sat, 14 Nov 2015 02:41:13 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id D1F118F812A for ; Sat, 14 Nov 2015 00:41:13 -0800 (PST) X-ASG-Debug-ID: 1447490470-04cb6c0cd155150001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id LxyqJFoW9GtzRlL7 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sat, 14 Nov 2015 00:41:11 -0800 (PST) X-Barracuda-Envelope-From: BATV+83429bba74d63fe5ba36+4465+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZxWON-0001pt-NX; Sat, 14 Nov 2015 08:41:03 +0000 Date: Sat, 14 Nov 2015 00:41:03 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: david@fromorbit.com, fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [RFCv3.2 00/12] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls Message-ID: <20151114084103.GA6894@infradead.org> X-ASG-Orig-Subj: Re: [RFCv3.2 00/12] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls References: <20151113213643.31124.80975.stgit@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151113213643.31124.80975.stgit@birch.djwong.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447490471 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24383 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS Looks good, Acked-by: Christoph Hellwig From rasheedkazeem@peace.com Sat Nov 14 04:06:05 2015 Return-Path: X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 32B447F4E for ; Sat, 14 Nov 2015 04:06:05 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id BAA52AC062 for ; Sat, 14 Nov 2015 02:06:01 -0800 (PST) X-ASG-Debug-ID: 1447495550-04bdf07f095c7a0001-NocioJ Received: from ip151.50-31-1.static.steadfastdns.net (ip151.50-31-1.static.steadfastdns.net [50.31.1.151]) by cuda.sgi.com with ESMTP id cqAeZxdYEpgJKzNI for ; Sat, 14 Nov 2015 02:05:53 -0800 (PST) X-Barracuda-Envelope-From: rasheedkazeem@peace.com X-Barracuda-Apparent-Source-IP: 50.31.1.151 MIME-Version: 1.0 From: "Rasheed Kazeem" Reply-To: rasheed.kazeem@tewsmail.com To: xfs@oss.sgi.com Subject: Proposal Content-Type: multipart/mixed; boundary="----=_NextPart_001_41B7_43CA0D4D.1A016EDD" X-ASG-Orig-Subj: Proposal X-Mailer: Smart_Send_3_1_6 Date: Sat, 14 Nov 2015 02:05:46 -0800 Message-ID: <22243914835206998242@ADMINISTRATOR> X-Barracuda-Connect: ip151.50-31-1.static.steadfastdns.net[50.31.1.151] X-Barracuda-Start-Time: 1447495551 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: -1001.00 X-Barracuda-Spam-Status: No, SCORE=-1001.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 ------=_NextPart_001_41B7_43CA0D4D.1A016EDD Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Good day. Please find a copy of the proposal enclosed to this email for our= mutual benefit. I hope we can collaborate together on the proposal and mak= e very good profit. Please let me know if for some reason you are unable to= view the proposal so that I can resend it to you in a different format. It= is currently in a pdf format. I will be looking for your response. Regards, Rasheed. ------=_NextPart_001_41B7_43CA0D4D.1A016EDD Content-Type: application/pdf; name="Proposal.pdf" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="Proposal.pdf" JVBERi0xLjcKJeHg394KMSAwIG9iago8PC9UeXBlIC9DYXRhbG9nL1BhZ2VzIDMgMCBSL01ldGFk YXRhIDEyIDAgUj4+CmVuZG9iagoyIDAgb2JqCjw8L1Byb2R1Y2VyIChWaXNhZ2Vzb2Z0IFBERiBs aWJyYXJ5KS9DcmVhdGlvbkRhdGUgKEQ6MjAxNTEwMzAxNzI2MTRaMDAnMDAnKS9Nb2REYXRlIChE OjIwMTUxMDMwMTcyNzEwWikvVGl0bGUgKEZ1bGwgcGFnZSBwaG90bykvQ3JlYXRvciAoUFNjcmlw dDUuZGxsIFZlcnNpb24gNS4yLjIpL0F1dGhvciAocGNob21lKT4+CmVuZG9iagozIDAgb2JqCjw8 L1R5cGUgL1BhZ2VzL0tpZHMgWyA0IDAgUiBdL0NvdW50IDE+PgplbmRvYmoKNCAwIG9iago8PC9U eXBlIC9QYWdlL01lZGlhQm94IFsgMCAwIDU5NSA4NDIgXS9QYXJlbnQgMyAwIFIvUmVzb3VyY2Vz IDw8L1Byb2NTZXQgWyAvUERGIC9JbWFnZUMgXS9FeHRHU3RhdGUgMTAgMCBSL1hPYmplY3QgMTEg MCBSPj4KL0NvbnRlbnRzIDUgMCBSL1JvdGF0ZSAxODA+PgplbmRvYmoKNSAwIG9iago8PC9MZW5n dGggNiAwIFIvRmlsdGVyIC9GbGF0ZURlY29kZT4+CnN0cmVhbQp4nCtUMNAzNFIwAEEYIzmXSz/I 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[85.222.71.204]) by smtp.gmail.com with ESMTPSA id s185sm2632530lfe.24.2015.11.14.12.40.38 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 14 Nov 2015 12:40:39 -0800 (PST) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= To: Tetsuo Handa Subject: Re: memory reclaim problems on fs usage Date: Sat, 14 Nov 2015 21:40:38 +0100 X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage User-Agent: KMail/1.13.7 (Linux/4.3.0; KDE/4.14.13; x86_64; ; ) Cc: linux-mm@kvack.org, xfs@oss.sgi.com References: <201511102313.36685.arekm@maven.pl> <56449E44.7020407@I-love.SAKURA.ne.jp> <201511122228.26399.arekm@maven.pl> In-Reply-To: <201511122228.26399.arekm@maven.pl> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201511142140.38245.arekm@maven.pl> X-Barracuda-Connect: mail-lf0-f51.google.com[209.85.215.51] X-Barracuda-Start-Time: 1447533641 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24395 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Thursday 12 of November 2015, Arkadiusz Mi=C5=9Bkiewicz wrote: > On Thursday 12 of November 2015, Tetsuo Handa wrote: > > On 2015/11/12 15:06, Arkadiusz Mi=C5=9Bkiewicz wrote: > > > On Wednesday 11 of November 2015, Tetsuo Handa wrote: > > >> Arkadiusz Mi?kiewicz wrote: > > >>> This patch is against which tree? (tried 4.1, 4.2 and 4.3) > > >>=20 > > >> Oops. Whitespace-damaged. This patch is for vanilla 4.1.2. > > >> Reposting with one condition corrected. > > >=20 > > > Here is log: > > >=20 > > > http://ixion.pld-linux.org/~arekm/log-mm-1.txt.gz > > >=20 > > > Uncompresses is 1.4MB, so not posting here. > >=20 > > Thank you for the log. The result is unexpected for me. >=20 > [...] >=20 > > vmstat_update() and submit_flushes() remained pending for about 110 > > seconds. If xlog_cil_push_work() were spinning inside GFP_NOFS > > allocation, it should be reported as MemAlloc: traces, but no such lines > > are recorded. I don't know why xlog_cil_push_work() did not call > > schedule() for so long. Anyway, applying > > http://lkml.kernel.org/r/20151111160336.GD1432@dhcp22.suse.cz should > > solve vmstat_update() part. >=20 > To apply that patch on top of 4.1.13 I also had to apply patches listed > below. >=20 > So in summary appllied: > http://sprunge.us/GYBb > http://sprunge.us/XWUX > http://sprunge.us/jZjV I've tried more to trigger "page allocation failure" with usual actions tha= t=20 triggered it previously but couldn't reproduce. With these patches applied = it=20 doesn't happen. Logs from my tests: http://ixion.pld-linux.org/~arekm/log-mm-3.txt.gz http://ixion.pld-linux.org/~arekm/log-mm-4.txt.gz (with swap added) But are these patches solving the problem or just hiding it? =2D-=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / ( maven.pl | pld-linux.org ) From penguin-kernel@I-love.SAKURA.ne.jp Sat Nov 14 20:35:32 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A1D4D7F47 for ; Sat, 14 Nov 2015 20:35:32 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7D630304039 for ; Sat, 14 Nov 2015 18:35:32 -0800 (PST) X-ASG-Debug-ID: 1447554924-04cb6c0cd363f80001-NocioJ Received: from www262.sakura.ne.jp (www262.sakura.ne.jp [202.181.97.72]) by cuda.sgi.com with ESMTP id DcGjIfTf8lcvYnsC (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO) for ; Sat, 14 Nov 2015 18:35:25 -0800 (PST) X-Barracuda-Envelope-From: penguin-kernel@I-love.SAKURA.ne.jp X-Barracuda-Apparent-Source-IP: 202.181.97.72 Received: from fsav109.sakura.ne.jp (fsav109.sakura.ne.jp [27.133.134.236]) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id tAF2ZDN6080509; Sun, 15 Nov 2015 11:35:13 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav109.sakura.ne.jp (F-Secure/fsigk_smtp/522/fsav109.sakura.ne.jp); Sun, 15 Nov 2015 11:35:13 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/522/fsav109.sakura.ne.jp) Received: from AQUA (softbank126094077227.bbtec.net [126.94.77.227]) (authenticated bits=0) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id tAF2ZDan080503; Sun, 15 Nov 2015 11:35:13 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) To: arekm@maven.pl Cc: htejun@gmail.com, cl@linux.com, mhocko@suse.com, linux-mm@kvack.org, xfs@oss.sgi.com Subject: Re: memory reclaim problems on fs usage From: Tetsuo Handa X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage References: <201511102313.36685.arekm@maven.pl> <56449E44.7020407@I-love.SAKURA.ne.jp> <201511122228.26399.arekm@maven.pl> <201511142140.38245.arekm@maven.pl> In-Reply-To: <201511142140.38245.arekm@maven.pl> Message-Id: <201511151135.JGD81717.OFOOSMFJFQHVtL@I-love.SAKURA.ne.jp> X-Mailer: Winbiff [Version 2.51 PL2] X-Accept-Language: ja,en,zh Date: Sun, 15 Nov 2015 11:35:11 +0900 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Barracuda-Connect: www262.sakura.ne.jp[202.181.97.72] X-Barracuda-Start-Time: 1447554925 X-Barracuda-Encrypted: DHE-RSA-CAMELLIA256-SHA X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24401 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Arkadiusz Miskiewicz wrote: > > > vmstat_update() and submit_flushes() remained pending for about 110 > > > seconds. If xlog_cil_push_work() were spinning inside GFP_NOFS > > > allocation, it should be reported as MemAlloc: traces, but no such lines > > > are recorded. I don't know why xlog_cil_push_work() did not call > > > schedule() for so long. Anyway, applying > > > http://lkml.kernel.org/r/20151111160336.GD1432@dhcp22.suse.cz should > > > solve vmstat_update() part. > > > > To apply that patch on top of 4.1.13 I also had to apply patches listed > > below. > > > > So in summary appllied: > > http://sprunge.us/GYBb > > http://sprunge.us/XWUX > > http://sprunge.us/jZjV > > I've tried more to trigger "page allocation failure" with usual actions that > triggered it previously but couldn't reproduce. With these patches applied it > doesn't happen. > > Logs from my tests: > > http://ixion.pld-linux.org/~arekm/log-mm-3.txt.gz > http://ixion.pld-linux.org/~arekm/log-mm-4.txt.gz (with swap added) > Good. vmstat_update() and submit_flushes() are no longer pending for long. log-mm-4.txt:Nov 14 16:40:08 srv kernel: [167753.393960] pending: vmstat_shepherd, vmpressure_work_fn log-mm-4.txt:Nov 14 16:40:08 srv kernel: [167753.393984] pending: submit_flushes [md_mod] log-mm-4.txt:Nov 14 16:41:08 srv kernel: [167813.439405] pending: submit_flushes [md_mod] log-mm-4.txt:Nov 14 17:17:19 srv kernel: [169985.104806] pending: vmstat_shepherd I think that the vmstat statistics now have correct values. > But are these patches solving the problem or just hiding it? > Excuse me but I can't judge. If you are interested in monitoring how vmstat statistics are changing under stalled condition, you can try below patch. diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 35a46b4..3de3a14 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2794,8 +2794,7 @@ static int kmallocwd(void *unused) rcu_read_unlock(); preempt_enable(); show_workqueue_state(); - if (dump_target_pid <= 0) - dump_target_pid = -pid; + show_mem(0); /* Wait until next timeout duration. */ schedule_timeout_interruptible(kmallocwd_timeout); if (memalloc_counter[index]) From arekm@maven.pl Sun Nov 15 05:29:35 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E15817F3F for ; Sun, 15 Nov 2015 05:29:35 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id B6BF0304032 for ; Sun, 15 Nov 2015 03:29:32 -0800 (PST) X-ASG-Debug-ID: 1447586966-04bdf07f0a73900001-NocioJ Received: from mail-lf0-f46.google.com (mail-lf0-f46.google.com [209.85.215.46]) by cuda.sgi.com with ESMTP id Y6W9SFo87C4pgJlu (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sun, 15 Nov 2015 03:29:27 -0800 (PST) X-Barracuda-Envelope-From: arekm@maven.pl X-Barracuda-Apparent-Source-IP: 209.85.215.46 Received: by lfdo63 with SMTP id o63so72978645lfd.2 for ; Sun, 15 Nov 2015 03:29:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maven.pl; s=maven; h=from:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; bh=TmwjvbOi58MtUxQmPuPJBbQavo8v1tk+jDGjy1IFAb4=; b=F1dr0ZpSZz7Lz6pyLg5+p71t46N4Bn1J1/kkuLI5U1NlWJ+Ar0r1iY4EjG5535xTt6 K3+khwjLyguAAJeU756uMKipasQHI2KrBevpHavYotuLE8G7SPifAUrxA1pAEimAqAo8 t8ow2jhrXOGzBNOSQYsj4LJaqjGGJTZekwDyM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:user-agent:cc:references :in-reply-to:mime-version:content-type:content-transfer-encoding :message-id; bh=TmwjvbOi58MtUxQmPuPJBbQavo8v1tk+jDGjy1IFAb4=; b=D+2ueYCsLC4VCwXWrabvTPPRGNqXLl7pR9YQqa9AJfRT1vPSVtkhhAZgBkS67quOWG Y43Fw4lpW5+E8gssjOIStWV2L54gszzBzyMNoBhpSi+wLX+xOQP4Oocaoxq/eleV/vNu Y2fFniE7Ou8yT3I0mp68hBGiJZlVp2bbLhM6zWY9u91+vzdOw5tM0S4d5+RHshN98VKX zpRFAdNSFNT9APiO8shl6e1m1Ec9P/xK6a4WpOYVdw4Z8gQulg6yeEHRRBLjNLncU3wV LIRVW5yySQee6oHu0QNTjhPRLChusVHRCgpr54rFVLtJgMxgwqQmjmIIgeh6ZrHu1FXu 3Ctg== X-Gm-Message-State: ALoCoQklxyEBOgOwB3GujTJLL//a2js8ntekUKFnvcbCav4pyeuthngYoEjaCK6ySHqfbA4oQmQJ X-Received: by 10.25.35.194 with SMTP id j185mr14046876lfj.62.1447586965918; Sun, 15 Nov 2015 03:29:25 -0800 (PST) Received: from xps.localnet (85-222-71-204.dynamic.chello.pl. [85.222.71.204]) by smtp.gmail.com with ESMTPSA id u12sm4616380lbk.45.2015.11.15.03.29.23 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 15 Nov 2015 03:29:24 -0800 (PST) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= To: Tetsuo Handa Subject: Re: memory reclaim problems on fs usage Date: Sun, 15 Nov 2015 12:29:23 +0100 X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage User-Agent: KMail/1.13.7 (Linux/4.3.0; KDE/4.14.13; x86_64; ; ) Cc: htejun@gmail.com, cl@linux.com, mhocko@suse.com, linux-mm@kvack.org, xfs@oss.sgi.com References: <201511102313.36685.arekm@maven.pl> <201511142140.38245.arekm@maven.pl> <201511151135.JGD81717.OFOOSMFJFQHVtL@I-love.SAKURA.ne.jp> In-Reply-To: <201511151135.JGD81717.OFOOSMFJFQHVtL@I-love.SAKURA.ne.jp> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201511151229.23312.arekm@maven.pl> X-Barracuda-Connect: mail-lf0-f46.google.com[209.85.215.46] X-Barracuda-Start-Time: 1447586967 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24411 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Sunday 15 of November 2015, Tetsuo Handa wrote: > Arkadiusz Miskiewicz wrote: > > > > vmstat_update() and submit_flushes() remained pending for about 110 > > > > seconds. If xlog_cil_push_work() were spinning inside GFP_NOFS > > > > allocation, it should be reported as MemAlloc: traces, but no such > > > > lines are recorded. I don't know why xlog_cil_push_work() did not > > > > call schedule() for so long. Anyway, applying > > > > http://lkml.kernel.org/r/20151111160336.GD1432@dhcp22.suse.cz should > > > > solve vmstat_update() part. > > >=20 > > > To apply that patch on top of 4.1.13 I also had to apply patches list= ed > > > below. > > >=20 > > > So in summary appllied: > > > http://sprunge.us/GYBb > > > http://sprunge.us/XWUX > > > http://sprunge.us/jZjV > >=20 > > I've tried more to trigger "page allocation failure" with usual actions > > that triggered it previously but couldn't reproduce. With these patches > > applied it doesn't happen. > >=20 > > Logs from my tests: > >=20 > > http://ixion.pld-linux.org/~arekm/log-mm-3.txt.gz > > http://ixion.pld-linux.org/~arekm/log-mm-4.txt.gz (with swap added) >=20 > Good. >=20 > vmstat_update() and submit_flushes() are no longer pending for long. >=20 > log-mm-4.txt:Nov 14 16:40:08 srv kernel: [167753.393960] pending: > vmstat_shepherd, vmpressure_work_fn log-mm-4.txt:Nov 14 16:40:08 srv > kernel: [167753.393984] pending: submit_flushes [md_mod] > log-mm-4.txt:Nov 14 16:41:08 srv kernel: [167813.439405] pending: > submit_flushes [md_mod] log-mm-4.txt:Nov 14 17:17:19 srv kernel: > [169985.104806] pending: vmstat_shepherd >=20 > I think that the vmstat statistics now have correct values. >=20 > > But are these patches solving the problem or just hiding it? >=20 > Excuse me but I can't judge. > > If you are interested in monitoring how vmstat statistics are changing > under stalled condition, you can try below patch. Here is log with this and all previous patches applied: http://ixion.pld-linux.org/~arekm/log-mm-5.txt.gz >=20 > diff --git a/mm/page_alloc.c b/mm/page_alloc.c > index 35a46b4..3de3a14 100644 > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -2794,8 +2794,7 @@ static int kmallocwd(void *unused) > rcu_read_unlock(); > preempt_enable(); > show_workqueue_state(); > - if (dump_target_pid <=3D 0) > - dump_target_pid =3D -pid; > + show_mem(0); > /* Wait until next timeout duration. */ > schedule_timeout_interruptible(kmallocwd_timeout); > if (memalloc_counter[index]) =2D-=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / ( maven.pl | pld-linux.org ) From avi@cloudius-systems.com Sun Nov 15 07:08:24 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B094B7F50 for ; Sun, 15 Nov 2015 07:08:24 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9F309304032 for ; Sun, 15 Nov 2015 05:08:21 -0800 (PST) X-ASG-Debug-ID: 1447592895-04cbb0605c8b0b0001-NocioJ Received: from mail-wm0-f53.google.com (mail-wm0-f53.google.com [74.125.82.53]) by cuda.sgi.com with ESMTP id ylMFD4LQE8sLohFD (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sun, 15 Nov 2015 05:08:15 -0800 (PST) X-Barracuda-Envelope-From: avi@cloudius-systems.com X-Barracuda-Apparent-Source-IP: 74.125.82.53 Received: by wmww144 with SMTP id w144so85885721wmw.0 for ; Sun, 15 Nov 2015 05:08:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=scylladb_com.20150623.gappssmtp.com; s=20150623; h=to:from:subject:message-id:date:user-agent:mime-version :content-type; bh=Ai7YHoJDrtDYJ9DjnkcOuLGXhYLTPX/BT/L4XJAfTLE=; b=d7UGSJypmE7Axqeqmyep1f6z0ekhxLxSw0jr8VgEZGg5PFi+r5hOYURQ5oSoXO/0V3 lJu+UUl709UCAFjswJJKxS+++nBAQj63ZIUPVu2/qzG2DQ82DYgtss/7sYEkAEd7Pzhf OpXReR51r1xRsZs5pNYUiXBUPJ/iGBHI8IjhXunzy2GgvoATCL08CEVAy99+2xd8JxOq VPedhjduPz8ziLYXEoTt8VOHktqHpVT4SSPNA7Nf1sHyP39EX/DwLl8viBErE2YGT/xG yUEPsjor3Y/bQh5nteFGTycxVrEJj/un8WD+sNYCiqjASw9UabFik19ftyHCGaxXSdql 28lg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:to:from:subject:message-id:date:user-agent :mime-version:content-type; bh=Ai7YHoJDrtDYJ9DjnkcOuLGXhYLTPX/BT/L4XJAfTLE=; b=muvV+PECAG8SxyOz3sfia+RsvJJUArpJ91OT6AZ5LYQ2dUr7rB5QfRP1XtqsEYvJ3n 3127joIGqAukbdGbOCqsSgsTMe89jLBkRky+td5GwGxgiGcdP0OkByxdVfzQurnyH30R BJlW1NnKRlrTgIRaxeUvqV4/ppyu5hX6s9p3htbePdvfK+NXm+CMe894fnIhCqk6r3Hn laAUit5AwsNYgSOe7/cAJsh/dhdQWcHjfQ9G2fFrzAJeASqXSMW1DzS838xTO2qdEcVs LqQW/H1mQnifE7A/VgZwQTNFAzgydgdCfPKF7Sbrn83EpJ3+E3dLHELrx38F/Z+TpiHL Ud8g== X-Gm-Message-State: ALoCoQk7KPqia99xRMeoYN9CECe8MhLn/QI6w7Cy/Wbg8ti9HN1LWkWrfeQ6LHbm0Uz2MVuPLynO X-Received: by 10.194.192.106 with SMTP id hf10mr32093743wjc.131.1447592894975; Sun, 15 Nov 2015 05:08:14 -0800 (PST) Received: from avi.cloudius-systems.com ([37.142.229.250]) by smtp.googlemail.com with ESMTPSA id w4sm29340364wje.49.2015.11.15.05.08.14 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 15 Nov 2015 05:08:14 -0800 (PST) To: xfs@oss.sgi.com, linux-aio@kvack.org From: Avi Kivity Subject: AIO read returns negative number for bytes read Message-ID: <564883BD.8070607@scylladb.com> X-ASG-Orig-Subj: AIO read returns negative number for bytes read Date: Sun, 15 Nov 2015 15:08:13 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="------------000802080702020200030301" X-Barracuda-Connect: mail-wm0-f53.google.com[74.125.82.53] X-Barracuda-Start-Time: 1447592895 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24412 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This is a multi-part message in MIME format. --------------000802080702020200030301 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Due to a bug in my program, I initiated a read beyond eof. Specifically, the file size is 13002 bytes and the read offset is 13312 (0x3400). I would expect such a read to return 0 bytes read, but io_getevents returns -310, which is suspiciously equal to (13002 - 13312). I attach a reproducer. 4.2.5-201.fc22.x86_64 Are my expectations incorrect, or is this a bug in aio or xfs? --------------000802080702020200030301 Content-Type: text/plain; charset=UTF-8; name="aio_read_fails.c" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="aio_read_fails.c" I2RlZmluZSBfR05VX1NPVVJDRQoKI2luY2x1ZGUgPGxpYmFpby5oPgojaW5jbHVkZSA8YXNz ZXJ0Lmg+CiNpbmNsdWRlIDxzdGRsaWIuaD4KI2luY2x1ZGUgPHN5cy90eXBlcy5oPgojaW5j bHVkZSA8dW5pc3RkLmg+CiNpbmNsdWRlIDxzdGRpby5oPgojaW5jbHVkZSA8c3lzL3N0YXQu aD4KI2luY2x1ZGUgPGZjbnRsLmg+CgppbnQgbWFpbihpbnQgYWMsIGNoYXIqKiBhdikgewog IGludCBmZDsKICBjaGFyKiBidWY7CiAgaW9fY29udGV4dF90IGlvYyA9IE5VTEw7CiAgaW50 IHI7CiAgc3RydWN0IGlvY2IgaW9jYjsKICBzdHJ1Y3QgaW9jYiAqaW9jYnBbMV07CiAgc3Ry dWN0IGlvX2V2ZW50IGlvZXY7CgogIGJ1ZiA9IGFsaWduZWRfYWxsb2MoNDA5NiwgNDA5Nio0 KTsKICBhc3NlcnQoYnVmKTsKICByID0gaW9fc2V0dXAoMSwgJmlvYyk7CiAgYXNzZXJ0KHIg PT0gMCk7CiAgZmQgPSBvcGVuKCJ0bXAudG1wIiwgT19SRFdSIHwgT19DUkVBVCB8IE9fRElS RUNULCAwNjAwKTsKICBhc3NlcnQoZmQgPj0gMCk7CiAgaW9fcHJlcF9wd3JpdGUoJmlvY2Is IGZkLCBidWYsIDQwOTYqNCwgMCk7CiAgaW9jYnBbMF0gPSAmaW9jYjsKICByID0gaW9fc3Vi bWl0KGlvYywgMSwgaW9jYnApOwogIGFzc2VydChyID09IDEpOwogIHIgPSBpb19nZXRldmVu dHMoaW9jLCAxLCAxLCAmaW9ldiwgTlVMTCk7CiAgYXNzZXJ0KHIgPT0gMSk7CiAgYXNzZXJ0 KGlvZXYucmVzID09IDQqNDA5Nik7CiAgZnRydW5jYXRlKGZkLCAxMzAwMik7CiAgaW9fcHJl cF9wcmVhZCgmaW9jYiwgZmQsIGJ1ZiwgODE5MiwgMTMzMTIpOwogIHIgPSBpb19zdWJtaXQo aW9jLCAxLCBpb2NicCk7CiAgYXNzZXJ0KHIgPT0gMSk7CiAgciA9IGlvX2dldGV2ZW50cyhp b2MsIDEsIDEsICZpb2V2LCBOVUxMKTsKICBhc3NlcnQociA9PSAxKTsKICBwcmludGYoInJl YWQgcmVzdWx0OiAlZFxuIiwgKGludClpb2V2LnJlcyk7CiAgcmV0dXJuIDA7Cn0K --------------000802080702020200030301-- From penguin-kernel@I-love.SAKURA.ne.jp Sun Nov 15 08:13:52 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E67F07CBF for ; Sun, 15 Nov 2015 08:13:51 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7AAFEAC001 for ; Sun, 15 Nov 2015 06:13:48 -0800 (PST) X-ASG-Debug-ID: 1447596819-04cb6c0cd36fcc0001-NocioJ Received: from www262.sakura.ne.jp (www262.sakura.ne.jp [202.181.97.72]) by cuda.sgi.com with ESMTP id NzEn55sSUl5qJsvt (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO) for ; Sun, 15 Nov 2015 06:13:40 -0800 (PST) X-Barracuda-Envelope-From: penguin-kernel@I-love.SAKURA.ne.jp X-Barracuda-Apparent-Source-IP: 202.181.97.72 Received: from fsav108.sakura.ne.jp (fsav108.sakura.ne.jp [27.133.134.235]) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id tAFEDSAC006312; Sun, 15 Nov 2015 23:13:28 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav108.sakura.ne.jp (F-Secure/fsigk_smtp/522/fsav108.sakura.ne.jp); Sun, 15 Nov 2015 23:13:28 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/522/fsav108.sakura.ne.jp) Received: from AQUA (softbank126094077227.bbtec.net [126.94.77.227]) (authenticated bits=0) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id tAFEDSl0006309; Sun, 15 Nov 2015 23:13:28 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) To: arekm@maven.pl Cc: htejun@gmail.com, cl@linux.com, mhocko@suse.com, linux-mm@kvack.org, xfs@oss.sgi.com Subject: Re: memory reclaim problems on fs usage From: Tetsuo Handa X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage References: <201511102313.36685.arekm@maven.pl> <201511142140.38245.arekm@maven.pl> <201511151135.JGD81717.OFOOSMFJFQHVtL@I-love.SAKURA.ne.jp> <201511151229.23312.arekm@maven.pl> In-Reply-To: <201511151229.23312.arekm@maven.pl> Message-Id: <201511152313.IJI23764.OHVFJFMSFOtOLQ@I-love.SAKURA.ne.jp> X-Mailer: Winbiff [Version 2.51 PL2] X-Accept-Language: ja,en,zh Date: Sun, 15 Nov 2015 23:13:23 +0900 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Barracuda-Connect: www262.sakura.ne.jp[202.181.97.72] X-Barracuda-Start-Time: 1447596820 X-Barracuda-Encrypted: DHE-RSA-CAMELLIA256-SHA X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24413 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Arkadiusz Miskiewicz wrote: > On Sunday 15 of November 2015, Tetsuo Handa wrote: > > I think that the vmstat statistics now have correct values. > > > > > But are these patches solving the problem or just hiding it? > > > > Excuse me but I can't judge. > > > > If you are interested in monitoring how vmstat statistics are changing > > under stalled condition, you can try below patch. > > > Here is log with this and all previous patches applied: > http://ixion.pld-linux.org/~arekm/log-mm-5.txt.gz Regarding "Node 0 Normal" (min:7104kB low:8880kB high:10656kB), all free: values look sane to me. I think that your problem was solved. $ grep "Normal free:" log-mm-5.txt | cut -b 44- | awk -F' ' ' { print $4 } ' | cut -b 6- | sort -g 8608kB 8636kB 8920kB 8920kB 8952kB 8968kB 8980kB (...snipped...) 215364kB 290068kB 290428kB 291176kB 292836kB 303992kB 306468kB 318080kB 319548kB $ grep "Normal free:" log-mm-1.txt | cut -b 44- | awk -F' ' ' { print $4 } ' | cut -b 6- | sort -g 0kB 40kB 128kB 128kB 128kB 128kB 128kB 128kB 128kB 128kB (...snipped...) 412kB 616kB 1268kB 1544kB 1696kB 2756kB 2756kB 2756kB 2756kB 2756kB 2756kB 2756kB From arekm@maven.pl Sun Nov 15 08:49:43 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 420A97CBF for ; Sun, 15 Nov 2015 08:49:43 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 022B6304039 for ; Sun, 15 Nov 2015 06:49:42 -0800 (PST) X-ASG-Debug-ID: 1447598977-04bdf07f0776820001-NocioJ Received: from mail-lf0-f47.google.com (mail-lf0-f47.google.com [209.85.215.47]) by cuda.sgi.com with ESMTP id 8nf6qtjI3ZjnCMEE (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sun, 15 Nov 2015 06:49:39 -0800 (PST) X-Barracuda-Envelope-From: arekm@maven.pl X-Barracuda-Apparent-Source-IP: 209.85.215.47 Received: by lfaz4 with SMTP id z4so10822254lfa.0 for ; Sun, 15 Nov 2015 06:49:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maven.pl; s=maven; h=from:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; bh=IZD3/5shqAuZk6GUyR7LyXlbbQQwII3CxisVq5SdOAU=; b=R74C/vrcZALiZdL1fpwGLJxcceo6G1evlKPdUsw9v7gvi628dtWizsTNhBz2ayMo2R kuVBw31wwDloSbm1+eJTFxN8nfx8LXwKyZ8ATxS03sqoZAkVydP/B07/44IhujFWOqYZ ZFu04SliIzkO6Lv8pAdd4kB0TgWKGErifxBdQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:user-agent:cc:references :in-reply-to:mime-version:content-type:content-transfer-encoding :message-id; bh=IZD3/5shqAuZk6GUyR7LyXlbbQQwII3CxisVq5SdOAU=; b=BQK4hMjyaeyGH3zb60kuV0Mi8H4NUfwUpwNXfYXsw/09d1lxkdXHGBMvx4WLYEvCho dhtgMvfW2MCpVQ9RwNE9u6JInd9IpRfHlpeQP7TTmG01YW9Yma8/lxqDMftMYCCD9ZTs pXnBEO0LsPDfNVAYpZU/jIP0Q3z9gQTSpjj18hsukpe9NvTXW6VtWGKtIwtZBvsH4sKq ykLLRVsDApVfAlmZELMj/zPQlvdMLC4G3d11T8lby7zsAyH3+ccfoDiciekkw+/Tdm+O /MouIqlcmNRIsKEDSrlDLukn5kU1/6n9piCl7AdluTiVWCh/e0h+TFzs5I7ZIvoF0FD4 0raw== X-Gm-Message-State: ALoCoQmneB8ICVdkDfZMCJzmEA7LwMmNGR4WU6s2sjCS8erEN1/A/dUFnK+bv+pyO5P0TdNPPdU2 X-Received: by 10.25.163.131 with SMTP id m125mr14941827lfe.0.1447598977197; Sun, 15 Nov 2015 06:49:37 -0800 (PST) Received: from xps.localnet (85-222-71-204.dynamic.chello.pl. [85.222.71.204]) by smtp.gmail.com with ESMTPSA id kf8sm4728826lbc.46.2015.11.15.06.49.35 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 15 Nov 2015 06:49:36 -0800 (PST) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= To: Tetsuo Handa Subject: Re: memory reclaim problems on fs usage Date: Sun, 15 Nov 2015 15:49:35 +0100 X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage User-Agent: KMail/1.13.7 (Linux/4.3.0; KDE/4.14.13; x86_64; ; ) Cc: htejun@gmail.com, cl@linux.com, mhocko@suse.com, linux-mm@kvack.org, xfs@oss.sgi.com References: <201511102313.36685.arekm@maven.pl> <201511151229.23312.arekm@maven.pl> <201511152313.IJI23764.OHVFJFMSFOtOLQ@I-love.SAKURA.ne.jp> In-Reply-To: <201511152313.IJI23764.OHVFJFMSFOtOLQ@I-love.SAKURA.ne.jp> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201511151549.35299.arekm@maven.pl> X-Barracuda-Connect: mail-lf0-f47.google.com[209.85.215.47] X-Barracuda-Start-Time: 1447598978 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24414 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Sunday 15 of November 2015, Tetsuo Handa wrote: > Arkadiusz Miskiewicz wrote: > > On Sunday 15 of November 2015, Tetsuo Handa wrote: > > > I think that the vmstat statistics now have correct values. > > >=20 > > > > But are these patches solving the problem or just hiding it? > > >=20 > > > Excuse me but I can't judge. > > >=20 > > > If you are interested in monitoring how vmstat statistics are changing > > > under stalled condition, you can try below patch. > >=20 > > Here is log with this and all previous patches applied: > > http://ixion.pld-linux.org/~arekm/log-mm-5.txt.gz >=20 > Regarding "Node 0 Normal" (min:7104kB low:8880kB high:10656kB), > all free: values look sane to me. I think that your problem was solved. Great, thanks! Will all (or part) of these patches http://sprunge.us/GYBb http://sprunge.us/XWUX (after it gets merged) be pushed to stable@ or are too risky for stable ? >=20 > $ grep "Normal free:" log-mm-5.txt | cut -b 44- | awk -F' ' ' { print $4 } > ' | cut -b 6- | sort -g 8608kB > 8636kB > 8920kB > 8920kB > 8952kB > 8968kB > 8980kB > (...snipped...) > 215364kB > 290068kB > 290428kB > 291176kB > 292836kB > 303992kB > 306468kB > 318080kB > 319548kB >=20 > $ grep "Normal free:" log-mm-1.txt | cut -b 44- | awk -F' ' ' { print $4 } > ' | cut -b 6- | sort -g 0kB > 40kB > 128kB > 128kB > 128kB > 128kB > 128kB > 128kB > 128kB > 128kB > (...snipped...) > 412kB > 616kB > 1268kB > 1544kB > 1696kB > 2756kB > 2756kB > 2756kB > 2756kB > 2756kB > 2756kB > 2756kB =2D-=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / ( maven.pl | pld-linux.org ) From hdo_@etu.univ-valenciennes.fr Sun Nov 15 16:00:18 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 00D1D7F50 for ; Sun, 15 Nov 2015 16:00:18 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 840C7AC001 for ; Sun, 15 Nov 2015 14:00:14 -0800 (PST) X-ASG-Debug-ID: 1447624812-04cbb0605b95f60001-NocioJ Received: from titan.univ-valenciennes.fr (titan.univ-valenciennes.fr [193.50.192.38]) by cuda.sgi.com with ESMTP id Ra42jxcyAvFHVMrC for ; Sun, 15 Nov 2015 14:00:12 -0800 (PST) X-Barracuda-Envelope-From: hdo_@etu.univ-valenciennes.fr X-Barracuda-Apparent-Source-IP: 193.50.192.38 Received: from zestore1.univ-valenciennes.fr (zestore1.univ-valenciennes.fr [193.50.192.56]) by titan.univ-valenciennes.fr (Postfix) with ESMTP id C306A7843F3; Sun, 15 Nov 2015 22:59:19 +0100 (CET) Date: Sun, 15 Nov 2015 23:00:17 +0100 (CET) From: Hai Quan Do To: info@hute.com Message-ID: <924530609.385646.1447624817979.JavaMail.zimbra@etu.univ-valenciennes.fr> Subject: Mailbox Notice Message! 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------=_Part_385645_1716176438.1447624817977-- From cmaiolino@redhat.com Mon Nov 16 02:43:35 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 185517F54 for ; Mon, 16 Nov 2015 02:43:35 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 05D338F8033 for ; Mon, 16 Nov 2015 00:43:34 -0800 (PST) X-ASG-Debug-ID: 1447663413-04cbb0605d9faa0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 5hYBjKjBv2MwuiTE (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 16 Nov 2015 00:43:34 -0800 (PST) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 0D8F48EFDA for ; Mon, 16 Nov 2015 08:43:33 +0000 (UTC) Received: from zion.usersys.redhat.com (dhcp-26-103.brq.redhat.com [10.34.26.103]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAG8hVmi008258 for ; Mon, 16 Nov 2015 03:43:32 -0500 From: Carlos Maiolino To: xfs@oss.sgi.com Subject: [PATCH 0/2] xfs_io: implement inode command Date: Mon, 16 Nov 2015 09:43:22 +0100 X-ASG-Orig-Subj: [PATCH 0/2] xfs_io: implement inode command Message-Id: <1447663404-7857-1-git-send-email-cmaiolino@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447663413 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Implement xfs_io inode command, which can be used to retreive information about allocated inodes in a xfs filesystem. Carlos Maiolino (2): xfs_io: implement 'inode' command V4 xfs_io: inode command manpage V1 io/open.c | 151 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ man/man8/xfs_io.8 | 24 +++++++++ 2 files changed, 175 insertions(+) -- 2.4.3 From cmaiolino@redhat.com Mon Nov 16 02:43:39 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D88B37F59 for ; Mon, 16 Nov 2015 02:43:39 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id BA1968F8035 for ; Mon, 16 Nov 2015 00:43:39 -0800 (PST) X-ASG-Debug-ID: 1447663414-04cb6c0cd47f150001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id OWDviytWGfvuNFZS (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 16 Nov 2015 00:43:35 -0800 (PST) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id D4989C001264 for ; Mon, 16 Nov 2015 08:43:34 +0000 (UTC) Received: from zion.usersys.redhat.com (dhcp-26-103.brq.redhat.com [10.34.26.103]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAG8hVmj008258 for ; Mon, 16 Nov 2015 03:43:34 -0500 From: Carlos Maiolino To: xfs@oss.sgi.com Subject: [PATCH 1/2] xfs_io: implement 'inode' command V4 Date: Mon, 16 Nov 2015 09:43:23 +0100 X-ASG-Orig-Subj: [PATCH 1/2] xfs_io: implement 'inode' command V4 Message-Id: <1447663404-7857-2-git-send-email-cmaiolino@redhat.com> In-Reply-To: <1447663404-7857-1-git-send-email-cmaiolino@redhat.com> References: <1447663404-7857-1-git-send-email-cmaiolino@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447663415 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Implements a new xfs_io command, named 'inode', which is supposed to be used to query information about inode's existence and its physical size in the filesystem. Currently supporting three arguments: -s -- return physical size of the largest inode -l -- return the largest inode number allocated and used -n [num] -- Return the next existing inode after [num], even if [num] is not allocated/used [num] -- Return if the inode exists or not. I didn't send the man page patch because I'm sure I'll get some points to improve, and I'll write the manpage for the next revision. - Changelog V3: - Merge all 3 patches from the V2 together in a single patch - Rework of '-n [num]' and 'num' only arguments algorithm - Argument -n now relies on bulkreq.count to check for next inodes, not on bstat.bs_ino anymore. - for loop in ret_lsize or ret_largest case, now relies on count being 0 to break the loop V4: - Refactor inode_f function to reduce its size and easier logic - Implement error handlers for invalid command combination (hopefully all invalid combinations). - use a single xfs_inogrp array for keep track of inodes - Fix missing newline in inode_help() - Rewrite help message in inode_help() - Fix indentation Signed-off-by: Carlos Maiolino --- io/open.c | 151 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 151 insertions(+) diff --git a/io/open.c b/io/open.c index ac5a5e0..2fc8aab 100644 --- a/io/open.c +++ b/io/open.c @@ -20,6 +20,7 @@ #include "input.h" #include "init.h" #include "io.h" +#include "libxfs.h" #ifndef __O_TMPFILE #if defined __alpha__ @@ -44,6 +45,7 @@ static cmdinfo_t statfs_cmd; static cmdinfo_t chproj_cmd; static cmdinfo_t lsproj_cmd; static cmdinfo_t extsize_cmd; +static cmdinfo_t inode_cmd; static prid_t prid; static long extsize; @@ -750,6 +752,144 @@ statfs_f( return 0; } +static void +inode_help(void) +{ + printf(_( +"\n" +"Query physical information about the inode" +"\n" +" -l -- Returns the largest inode number in the filesystem\n" +" -s -- Returns the physical size (in bits) of the\n" +" largest inode number in the filesystem\n" +" -n -- Return the next valid inode after [num]\n" +"[num] Check if the inode [num] is in use\n" +"\n")); +} + +static int +inode_f( + int argc, + char **argv) +{ + __s32 count = 0; + __s32 lastgrp = 0; + __u64 last = 0; + __u64 lastino = 0; + __u64 userino = 0; + char *p; + int c; + int ret_lsize = 0; + int ret_largest = 0; + int ret_next = 0; + int cmd = 0; + struct xfs_inogrp igroup[1024], igrp_rec; + struct xfs_fsop_bulkreq bulkreq; + struct xfs_bstat bstat; + + + while ((c = getopt(argc, argv, "sln")) != EOF) { + switch (c) { + case 's': + ret_lsize = 1; + break; + case 'l': + ret_largest = 1; + break; + case 'n': + ret_next = 1; + break; + default: + return command_usage(&inode_cmd); + } + } + + if (optind < argc) { + if (ret_lsize || ret_largest) + return command_usage(&inode_cmd); + + if (ret_next) { + if (argc > 3) + return command_usage(&inode_cmd); + else + cmd = XFS_IOC_FSBULKSTAT; + } else { + if (argc > 2) + return command_usage(&inode_cmd); + else + cmd = XFS_IOC_FSBULKSTAT_SINGLE; + } + + + userino = strtoull(argv[optind], &p, 10); + if ((*p != '\0')) { + printf(_("[num] must be a numeric value\n")); + exitcode = 1; + return 0; + } + + bulkreq.lastip = &userino; + bulkreq.icount = 1; + bulkreq.ubuffer = &bstat; + bulkreq.ocount = &count; + + if (xfsctl(file->name, file->fd, cmd, &bulkreq)) { + if (errno == EINVAL) + printf(_("Invalid or unlinked inode\n")); + else + perror("xfsctl"); + exitcode = 1; + return 0; + } + + if (ret_next) { + printf(_("Next inode: %llu\n"), bstat.bs_ino); + return 0; + } else { + printf(_("Valid inode: %llu\n"), bstat.bs_ino); + return 0; + } + } + + if (ret_lsize || ret_largest) { + + bulkreq.lastip = &last; + bulkreq.icount = 1024; /* User-defined maybe!? */ + bulkreq.ubuffer = &igroup; + bulkreq.ocount = &count; + + for (;;) { + + if (xfsctl(file->name, file->fd, XFS_IOC_FSINUMBERS, + &bulkreq)) { + perror("XFS_IOC_FSINUMBERS"); + exitcode = 1; + return 0; + } + + if (count == 0) + break; + + lastgrp = count; + } + + lastgrp--; + igrp_rec = igroup[lastgrp]; + lastino = igrp_rec.xi_startino + + xfs_highbit64(igrp_rec.xi_allocmask); + + if (ret_lsize) + printf (_("Largest inode size: %d\n"), + lastino > XFS_MAXINUMBER_32 ? 64 : 32); + else + printf(_("Largest inode: %llu\n"), lastino); + + return 0; + } + + return command_usage(&inode_cmd); +} + void open_init(void) { @@ -815,6 +955,16 @@ open_init(void) _("get/set preferred extent size (in bytes) for the open file"); extsize_cmd.help = extsize_help; + inode_cmd.name = "inode"; + inode_cmd.cfunc = inode_f; + inode_cmd.args = _("[-s | -l | -n] [num]"); + inode_cmd.argmin = 1; + inode_cmd.argmax = 2; + inode_cmd.flags = CMD_NOMAP_OK; + inode_cmd.oneline = + _("Query inode number usage in the filesystem"); + inode_cmd.help = inode_help; + add_command(&open_cmd); add_command(&stat_cmd); add_command(&close_cmd); @@ -822,4 +972,5 @@ open_init(void) add_command(&chproj_cmd); add_command(&lsproj_cmd); add_command(&extsize_cmd); + add_command(&inode_cmd); } -- 2.4.3 From cmaiolino@redhat.com Mon Nov 16 02:43:40 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2953C7F5A for ; Mon, 16 Nov 2015 02:43:40 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 198548F8035 for ; Mon, 16 Nov 2015 00:43:40 -0800 (PST) X-ASG-Debug-ID: 1447663418-04cbb0605b9faa0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id LlzzcfyibMLBmW4a (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 16 Nov 2015 00:43:39 -0800 (PST) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id CF157754 for ; Mon, 16 Nov 2015 08:43:38 +0000 (UTC) Received: from zion.usersys.redhat.com (dhcp-26-103.brq.redhat.com [10.34.26.103]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAG8hVmk008258 for ; Mon, 16 Nov 2015 03:43:38 -0500 From: Carlos Maiolino To: xfs@oss.sgi.com Subject: [PATCH 2/2] xfs_io: inode command manpage V1 Date: Mon, 16 Nov 2015 09:43:24 +0100 X-ASG-Orig-Subj: [PATCH 2/2] xfs_io: inode command manpage V1 Message-Id: <1447663404-7857-3-git-send-email-cmaiolino@redhat.com> In-Reply-To: <1447663404-7857-1-git-send-email-cmaiolino@redhat.com> References: <1447663404-7857-1-git-send-email-cmaiolino@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447663419 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 This is the first try to update xfs_io manpage to include information about 'inode' command usage. Improvements and grammar corrections are welcome :-) Signed-off-by: Carlos Maiolino --- man/man8/xfs_io.8 | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8 index 416206f..457f0eb 100644 --- a/man/man8/xfs_io.8 +++ b/man/man8/xfs_io.8 @@ -490,7 +490,31 @@ Recursively display all the specified segments starting at the specified .B \-s Display the starting lseek(2) offset. This offset will be a calculated value when both data and holes are displayed together or performing a recusively display. +.RE +.PD +.TP +.TP +.BI "inode \-s | \-l | \-n [num] | [num]" +Query physical inode information from a xfs filesystem. +.RS 1.0i +.PD 0 +.TP 0.4i +.B \-s +Display the physical size of the largest inode existing in the filesystem (32 or +64 bit). +.TP +.B -l +Display the largest allocated and used inode (inodes can be allocated in the +filesystem, but not used by any file). See +.B ikeep +xfs mount option). +.TP +.B -n [num] +Return the next existing inode after [num], even if [num] is not allocated in +the filesystem. .TP +.B [num] +Check if the inode [num] exists or not. .SH MEMORY MAPPED I/O COMMANDS .TP -- 2.4.3 From BATV+b7ea2846adb239a105d4+4467+infradead.org+hch@bombadil.srs.infradead.org Mon Nov 16 06:04:37 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7F7E97CBF for ; Mon, 16 Nov 2015 06:04:37 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6006030404E for ; Mon, 16 Nov 2015 04:04:34 -0800 (PST) X-ASG-Debug-ID: 1447675471-04cbb0605ba4330001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id JM7lIGFUKHce9SjX (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 16 Nov 2015 04:04:31 -0800 (PST) X-Barracuda-Envelope-From: BATV+b7ea2846adb239a105d4+4467+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZyIWN-0005hm-32; Mon, 16 Nov 2015 12:04:31 +0000 Date: Mon, 16 Nov 2015 04:04:31 -0800 From: Christoph Hellwig To: darrick.wong@oracle.com, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org Subject: clone ioctl return values Message-ID: <20151116120431.GA2860@infradead.org> X-ASG-Orig-Subj: clone ioctl return values MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447675471 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24435 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 Hi Darrick, your new generic/157 xfs test brings up an interesting issue: error returns forthe various clone failure cases. It seems like this case was written fo the XFS case which differs a lot from the error chosen by btrfs and mostly followed by NFS. I'd say it might be a better idea to follow the btrfs example as the btrfs ioctls have been in use for a while. The only shortcoming I see in btrfs is that id doesn't explicitly check for non-directory, non-regular file items as the source. I have to admit I'm kinda surprised that it doesn't blow up, given that NFS instantly did when I removed those checks. FYI, output from the test on btrfs below: --- tests/generic/157.out 2015-11-14 07:56:31.000000000 +0000 +++ /root/xfstests/results//generic/157.out.bad 2015-11-16 11:58:52.879078894 +0000 @@ -2,24 +2,24 @@ Format and mount Create the original files Try cross-device reflink -XFS_IOC_CLONE_RANGE: Invalid cross-device link +reflink: Invalid cross-device link Try unaligned reflink -XFS_IOC_CLONE_RANGE: Invalid argument +reflink: Invalid argument Try overlapping reflink -XFS_IOC_CLONE_RANGE: Invalid argument +reflink: Invalid argument Try reflink past EOF -XFS_IOC_CLONE_RANGE: Invalid argument +reflink: Invalid argument Try to reflink a dir -XFS_IOC_CLONE_RANGE: Is a directory +reflink: Is a directory Try to reflink a device -XFS_IOC_CLONE_RANGE: Invalid argument +/mnt/test/test-157/dev1: No such device or address Try to reflink to a dir -/mnt/test-157/dir1: Is a directory +/mnt/test/test-157/dir1: Is a directory Try to reflink to a device -XFS_IOC_CLONE_RANGE: Operation not supported +/mnt/test/test-157/dev1: No such device or address Try to reflink to a fifo -XFS_IOC_CLONE_RANGE: Operation not supported +reflink: Inappropriate ioctl for device Try to reflink an append-only file -XFS_IOC_CLONE_RANGE: Bad file descriptor +reflink: Invalid argument Reflink two files Check scratch fs From jack@suse.cz Mon Nov 16 07:37:26 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1BEF87CBF for ; Mon, 16 Nov 2015 07:37:26 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8CCF1AC002 for ; Mon, 16 Nov 2015 05:37:22 -0800 (PST) X-ASG-Debug-ID: 1447681039-04cbb0605ea71b0001-NocioJ Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id qAMjScVHg7XSaNpf (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 16 Nov 2015 05:37:20 -0800 (PST) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 3F674AC0B; Mon, 16 Nov 2015 13:36:54 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id F234882827; Mon, 16 Nov 2015 14:37:14 +0100 (CET) Date: Mon, 16 Nov 2015 14:37:14 +0100 From: Jan Kara To: Dan Williams Cc: Andreas Dilger , Ross Zwisler , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Message-ID: <20151116133714.GB3443@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mx2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1447681039 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24436 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri 13-11-15 18:32:40, Dan Williams wrote: > On Fri, Nov 13, 2015 at 4:43 PM, Andreas Dilger wrote: > > On Nov 13, 2015, at 5:20 PM, Dan Williams wrote: > >> > >> On Fri, Nov 13, 2015 at 4:06 PM, Ross Zwisler > >> wrote: > >>> Currently the PMEM driver doesn't accept REQ_FLUSH or REQ_FUA bios. These > >>> are sent down via blkdev_issue_flush() in response to a fsync() or msync() > >>> and are used by filesystems to order their metadata, among other things. > >>> > >>> When we get an msync() or fsync() it is the responsibility of the DAX code > >>> to flush all dirty pages to media. The PMEM driver then just has issue a > >>> wmb_pmem() in response to the REQ_FLUSH to ensure that before we return all > >>> the flushed data has been durably stored on the media. > >>> > >>> Signed-off-by: Ross Zwisler > >> > >> Hmm, I'm not seeing why we need this patch. If the actual flushing of > >> the cache is done by the core why does the driver need support > >> REQ_FLUSH? Especially since it's just a couple instructions. REQ_FUA > >> only makes sense if individual writes can bypass the "drive" cache, > >> but no I/O submitted to the driver proper is ever cached we always > >> flush it through to media. > > > > If the upper level filesystem gets an error when submitting a flush > > request, then it assumes the underlying hardware is broken and cannot > > be as aggressive in IO submission, but instead has to wait for in-flight > > IO to complete. > > Upper level filesystems won't get errors when the driver does not > support flush. Those requests are ended cleanly in > generic_make_request_checks(). Yes, the fs still needs to wait for > outstanding I/O to complete but in the case of pmem all I/O is > synchronous. There's never anything to await when flushing at the > pmem driver level. > > > Since FUA/FLUSH is basically a no-op for pmem devices, > > it doesn't make sense _not_ to support this functionality. > > Seems to be a nop either way. Given that DAX may lead to dirty data > pending to the device in the cpu cache that a REQ_FLUSH request will > not touch, its better to leave it all to the mm core to handle. I.e. > it doesn't make sense to call the driver just for two instructions > (sfence + pcommit) when the mm core is taking on the cache flushing. > Either handle it all in the mm or the driver, not a mixture. So I think REQ_FLUSH requests *must* end up doing sfence + pcommit because e.g. journal writes going through block layer or writes done through dax_do_io() must be on permanent storage once REQ_FLUSH request finishes and the way driver does IO doesn't guarantee this, does it? Honza -- Jan Kara SUSE Labs, CR From jack@suse.cz Mon Nov 16 08:05:38 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D8E377CBF for ; Mon, 16 Nov 2015 08:05:38 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id A52F1304039 for ; Mon, 16 Nov 2015 06:05:35 -0800 (PST) X-ASG-Debug-ID: 1447682728-04bdf07f078eb60001-NocioJ Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id nlJXymgXlVYoS2n7 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 16 Nov 2015 06:05:29 -0800 (PST) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id A7BC3AAF4; Mon, 16 Nov 2015 14:05:04 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 3665182827; Mon, 16 Nov 2015 15:05:26 +0100 (CET) Date: Mon, 16 Nov 2015 15:05:26 +0100 From: Jan Kara To: Dan Williams Cc: Andreas Dilger , Ross Zwisler , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Message-ID: <20151116140526.GA6733@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> <20151116133714.GB3443@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151116133714.GB3443@quack.suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mx2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1447682729 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24437 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon 16-11-15 14:37:14, Jan Kara wrote: > On Fri 13-11-15 18:32:40, Dan Williams wrote: > > On Fri, Nov 13, 2015 at 4:43 PM, Andreas Dilger wrote: > > > On Nov 13, 2015, at 5:20 PM, Dan Williams wrote: > > >> > > >> On Fri, Nov 13, 2015 at 4:06 PM, Ross Zwisler > > >> wrote: > > >>> Currently the PMEM driver doesn't accept REQ_FLUSH or REQ_FUA bios. These > > >>> are sent down via blkdev_issue_flush() in response to a fsync() or msync() > > >>> and are used by filesystems to order their metadata, among other things. > > >>> > > >>> When we get an msync() or fsync() it is the responsibility of the DAX code > > >>> to flush all dirty pages to media. The PMEM driver then just has issue a > > >>> wmb_pmem() in response to the REQ_FLUSH to ensure that before we return all > > >>> the flushed data has been durably stored on the media. > > >>> > > >>> Signed-off-by: Ross Zwisler > > >> > > >> Hmm, I'm not seeing why we need this patch. If the actual flushing of > > >> the cache is done by the core why does the driver need support > > >> REQ_FLUSH? Especially since it's just a couple instructions. REQ_FUA > > >> only makes sense if individual writes can bypass the "drive" cache, > > >> but no I/O submitted to the driver proper is ever cached we always > > >> flush it through to media. > > > > > > If the upper level filesystem gets an error when submitting a flush > > > request, then it assumes the underlying hardware is broken and cannot > > > be as aggressive in IO submission, but instead has to wait for in-flight > > > IO to complete. > > > > Upper level filesystems won't get errors when the driver does not > > support flush. Those requests are ended cleanly in > > generic_make_request_checks(). Yes, the fs still needs to wait for > > outstanding I/O to complete but in the case of pmem all I/O is > > synchronous. There's never anything to await when flushing at the > > pmem driver level. > > > > > Since FUA/FLUSH is basically a no-op for pmem devices, > > > it doesn't make sense _not_ to support this functionality. > > > > Seems to be a nop either way. Given that DAX may lead to dirty data > > pending to the device in the cpu cache that a REQ_FLUSH request will > > not touch, its better to leave it all to the mm core to handle. I.e. > > it doesn't make sense to call the driver just for two instructions > > (sfence + pcommit) when the mm core is taking on the cache flushing. > > Either handle it all in the mm or the driver, not a mixture. > > So I think REQ_FLUSH requests *must* end up doing sfence + pcommit because > e.g. journal writes going through block layer or writes done through > dax_do_io() must be on permanent storage once REQ_FLUSH request finishes > and the way driver does IO doesn't guarantee this, does it? Hum, and looking into how dax_do_io() works and what drivers/nvdimm/pmem.c does, I'm indeed wrong because they both do wmb_pmem() after each write which seems to include sfence + pcommit. Sorry for confusion. But a question: Won't it be better to do sfence + pcommit only in response to REQ_FLUSH request and don't do it after each write? I'm not sure how expensive these instructions are but in theory it could be a performance win, couldn't it? For filesystems this is enough wrt persistency guarantees... Honza -- Jan Kara SUSE Labs, CR From jack@suse.cz Mon Nov 16 08:41:42 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3ED1D7CBF for ; Mon, 16 Nov 2015 08:41:42 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1836C30404E for ; Mon, 16 Nov 2015 06:41:41 -0800 (PST) X-ASG-Debug-ID: 1447684893-04bdf07f0990e10001-NocioJ Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id pFDQmMhhGDmFZ4t9 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 16 Nov 2015 06:41:34 -0800 (PST) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 6375AAAF4; Mon, 16 Nov 2015 14:41:09 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 3196E82827; Mon, 16 Nov 2015 15:41:30 +0100 (CET) Date: Mon, 16 Nov 2015 15:41:30 +0100 From: Jan Kara To: Ross Zwisler Cc: linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 00/11] DAX fsynx/msync support Message-ID: <20151116144130.GD3443@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH v2 00/11] DAX fsynx/msync support References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mx2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1447684894 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24438 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri 13-11-15 17:06:39, Ross Zwisler wrote: > This patch series adds support for fsync/msync to DAX. > > Patches 1 through 7 add various utilities that the DAX code will eventually > need, and the DAX code itself is added by patch 8. Patches 9-11 update the > three filesystems that currently support DAX, ext2, ext4 and XFS, to use > the new DAX fsync/msync code. > > These patches build on the recent DAX locking changes from Dave Chinner, > Jan Kara and myself. Dave's changes for XFS and my changes for ext2 have > been merged in the v4.4 window, but Jan's are still unmerged. You can grab > them here: > > http://www.spinics.net/lists/linux-ext4/msg49951.html I had a quick look and the patches look sane to me. I'll try to give them more detailed look later this week. When thinking about the general design I was wondering: When we have this infrastructure to track data potentially lingering in CPU caches, would not it be a performance win to use standard cached stores in dax_io() and mark corresponding pages as dirty in page cache the same way as this patch set does it for mmaped writes? I have no idea how costly are non-temporal stores compared to cached ones and how would this compare to the cost of dirty tracking so this may be just completely bogus... Honza -- Jan Kara SUSE Labs, CR From bfoster@redhat.com Mon Nov 16 09:00:36 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 95A417CBF for ; Mon, 16 Nov 2015 09:00:36 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 62BD9304039 for ; Mon, 16 Nov 2015 07:00:36 -0800 (PST) X-ASG-Debug-ID: 1447686031-04bdf07f0a920f0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id FqYbfB3wvFroIeel (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 16 Nov 2015 07:00:31 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 4C284C00230B; Mon, 16 Nov 2015 15:00:31 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAGF0UU5028053; Mon, 16 Nov 2015 10:00:31 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id DD79B120059; Mon, 16 Nov 2015 10:00:29 -0500 (EST) Date: Mon, 16 Nov 2015 10:00:29 -0500 From: Brian Foster To: Avi Kivity Cc: xfs@oss.sgi.com, linux-aio@kvack.org Subject: Re: AIO read returns negative number for bytes read Message-ID: <20151116150028.GA60592@bfoster.bfoster> X-ASG-Orig-Subj: Re: AIO read returns negative number for bytes read References: <564883BD.8070607@scylladb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <564883BD.8070607@scylladb.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447686031 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sun, Nov 15, 2015 at 03:08:13PM +0200, Avi Kivity wrote: > Due to a bug in my program, I initiated a read beyond eof. Specifically, the > file size is 13002 bytes and the read offset is 13312 (0x3400). > > I would expect such a read to return 0 bytes read, but io_getevents returns > -310, which is suspiciously equal to (13002 - 13312). > > I attach a reproducer. > > 4.2.5-201.fc22.x86_64 > > Are my expectations incorrect, or is this a bug in aio or xfs? FWIW, I added some printk()'s and reproduced. This looks like a dio issue to me (a sync dio read reproduces just the same as aio). See the short read check in dio_complete(): ... /* Check for short read case */ if ((dio->rw == READ) && ((offset + transferred) > dio->i_size)) transferred = dio->i_size - offset; ... So if offset starts beyond i_size, we set transferred to a negative value. I suppose we could check for offset >= i_size here independently, but I'm not necessarily sure something earlier doesn't need to change (e.g., I see dio->result = 3072 in this case and I'm not familiar enough with core dio to know if that's expected). Brian > #define _GNU_SOURCE > > #include > #include > #include > #include > #include > #include > #include > #include > > int main(int ac, char** av) { > int fd; > char* buf; > io_context_t ioc = NULL; > int r; > struct iocb iocb; > struct iocb *iocbp[1]; > struct io_event ioev; > > buf = aligned_alloc(4096, 4096*4); > assert(buf); > r = io_setup(1, &ioc); > assert(r == 0); > fd = open("tmp.tmp", O_RDWR | O_CREAT | O_DIRECT, 0600); > assert(fd >= 0); > io_prep_pwrite(&iocb, fd, buf, 4096*4, 0); > iocbp[0] = &iocb; > r = io_submit(ioc, 1, iocbp); > assert(r == 1); > r = io_getevents(ioc, 1, 1, &ioev, NULL); > assert(r == 1); > assert(ioev.res == 4*4096); > ftruncate(fd, 13002); > io_prep_pread(&iocb, fd, buf, 8192, 13312); > r = io_submit(ioc, 1, iocbp); > assert(r == 1); > r = io_getevents(ioc, 1, 1, &ioev, NULL); > assert(r == 1); > printf("read result: %d\n", (int)ioev.res); > return 0; > } > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From haghdoost@gmail.com Mon Nov 16 09:20:20 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 45D207CBF for ; Mon, 16 Nov 2015 09:20:20 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id C16CAAC003 for ; Mon, 16 Nov 2015 07:20:16 -0800 (PST) X-ASG-Debug-ID: 1447687212-04cbb0605ead800001-NocioJ Received: from mail-yk0-f181.google.com (mail-yk0-f181.google.com [209.85.160.181]) by cuda.sgi.com with ESMTP id qjbfdaSBQSfCbZ3M (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 16 Nov 2015 07:20:12 -0800 (PST) X-Barracuda-Envelope-From: haghdoost@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.160.181 Received: by ykba77 with SMTP id a77so242912572ykb.2 for ; Mon, 16 Nov 2015 07:20:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=nrY630dydUxMRDsUIrv5K8j/impibjZLze19ma1J9jQ=; b=TfJiEni0g3ta6+uelCehLvHzmb4TlCFYqT6wJr3Q3ysY401c9G/zMDDsZENS/Vmuve CGJE5F5zE/9j6HR8FYcTilvOZ9wEKodUxnD5h6SOfF5TTzzZQJmlCFHnF37GN8Z6FjaQ nBMYoSnIIIvFV6ndR9oAvUjCc6RfetaGEaQGUh0OmgZHQbzQSyOyWoS+oVs9s7Tzb8hI 6sCMyb70mjv9EpiiTT4jOE2ng8MnHd4KNJpsc5CGAQ1Uobj3Szfp+5LZPh6RBREiZAzI aemtrf7U6GLVxUb0rXsUYbNNLo8V3X0wNAVj0jIhqyN52NExkMSfhmOpXLvBoR3b5gMk rbww== X-Received: by 10.129.136.5 with SMTP id y5mr38917757ywf.35.1447687211994; Mon, 16 Nov 2015 07:20:11 -0800 (PST) MIME-Version: 1.0 Received: by 10.31.106.65 with HTTP; Mon, 16 Nov 2015 07:19:32 -0800 (PST) In-Reply-To: <564883BD.8070607@scylladb.com> References: <564883BD.8070607@scylladb.com> From: Alireza Haghdoost Date: Mon, 16 Nov 2015 09:19:32 -0600 Message-ID: Subject: Re: AIO read returns negative number for bytes read To: Avi Kivity X-ASG-Orig-Subj: Re: AIO read returns negative number for bytes read Cc: xfs@oss.sgi.com, linux-aio@kvack.org Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-yk0-f181.google.com[209.85.160.181] X-Barracuda-Start-Time: 1447687212 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-ASG-Whitelist: Body =?UTF-8?B?aHR0cDovL21hcmNcLmluZm8vXD8=?= X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sun, Nov 15, 2015 at 7:08 AM, Avi Kivity wrote: > Due to a bug in my program, I initiated a read beyond eof. Specifically, the > file size is 13002 bytes and the read offset is 13312 (0x3400). > > I would expect such a read to return 0 bytes read, but io_getevents returns > -310, which is suspiciously equal to (13002 - 13312). > > I attach a reproducer. > > 4.2.5-201.fc22.x86_64 > > Are my expectations incorrect, or is this a bug in aio or xfs? I think it is not a bug. This post might be helpful: http://marc.info/?l=linux-aio&m=142315449930935&w=2 From avi@cloudius-systems.com Mon Nov 16 09:32:58 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A61D27CBF for ; Mon, 16 Nov 2015 09:32:58 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 759CE8F8035 for ; Mon, 16 Nov 2015 07:32:58 -0800 (PST) X-ASG-Debug-ID: 1447687975-04cbb0605bae450001-NocioJ Received: from mail-wm0-f50.google.com (mail-wm0-f50.google.com [74.125.82.50]) by cuda.sgi.com with ESMTP id zO9jNkB9heJQsPvd (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 16 Nov 2015 07:32:56 -0800 (PST) X-Barracuda-Envelope-From: avi@cloudius-systems.com X-Barracuda-Apparent-Source-IP: 74.125.82.50 Received: by wmdw130 with SMTP id w130so116231514wmd.0 for ; Mon, 16 Nov 2015 07:32:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=scylladb_com.20150623.gappssmtp.com; s=20150623; h=subject:to:references:cc:from:message-id:date:user-agent :mime-version:in-reply-to:content-type:content-transfer-encoding; bh=7OXH7lNWoKJqVEFXxfLn/O9JBABznYSl4we1kyN8ktM=; b=xzsSMcpYy8ceZ63q7jvUXL7gNI80i0sYz+MDVECUOziKGKQNf0ESI5SBkZuaYzZSJG fTbmZJEApBcfQtQzH2B5T3VKiVQWXbhx/M8i1tpP9ALOOokg30B5/SljXz3dQBPOukHI UTczVZHDAXhV1HkjC0hbClgGti0KD9A9INy70y0iidGmHAhUhp2wvHcvCUE74BdOXDaf OgyLlsSwuWg/CnzM/OOuQsBXIj9MSi1P7oykgunWFy+mBK6HO4a0n0wV9mVl+Xb4f3R2 grMDD5hI877PS7rFB+BuMDOmwPJbxnsdVsHhVYTpvEbPus7k1tJTViempXbZf0DKY2qZ uWsA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-type :content-transfer-encoding; bh=7OXH7lNWoKJqVEFXxfLn/O9JBABznYSl4we1kyN8ktM=; b=kojPNwmXb7OcfTuTozABSstTtshDlLcFypY4fSMNQbh5QJM5TPCzDRjwd7bDPmk0B1 0GU6dBOmj1FYx8OZDf+X9FZisHRpiqyW3c/+lyMenUsnRhZhdhQ9Bd4AKsUfkeKBPwt6 DC2u3GEwI5dcv8oEETaHpt1p4p4NxVf9tLSSDXocTUV63jrNZP+0RPwvinIki+f8KKFR 1nG+FyKrOnEniOab0c4st7cx9nVjxqSgqlAZ4ZmrpqGPXCO5OKvq/xy9nRFBEoYlIrW/ rkc/QpPPp7CUzLl0jXRpvomTn8MZsek6USgFdKd94akO/IFY+yUkUUxRKW6+rIWhWg8h 2akg== X-Gm-Message-State: ALoCoQkJ1x7xb2J8ggKMLhvHNpsXOT3tEqvhvnm1er/mGgAO/mfznMShvadXRyMSqjlr3gDReuXO X-Received: by 10.28.24.5 with SMTP id 5mr10072883wmy.3.1447687975345; Mon, 16 Nov 2015 07:32:55 -0800 (PST) Received: from avi.cloudius-systems.com ([37.142.229.250]) by smtp.googlemail.com with ESMTPSA id m11sm19128772wma.5.2015.11.16.07.32.54 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 16 Nov 2015 07:32:54 -0800 (PST) Subject: Re: AIO read returns negative number for bytes read To: Alireza Haghdoost X-ASG-Orig-Subj: Re: AIO read returns negative number for bytes read References: <564883BD.8070607@scylladb.com> Cc: xfs@oss.sgi.com, linux-aio@kvack.org From: Avi Kivity Message-ID: <5649F725.6080508@scylladb.com> Date: Mon, 16 Nov 2015 17:32:53 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail-wm0-f50.google.com[74.125.82.50] X-Barracuda-Start-Time: 1447687976 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-ASG-Whitelist: Body =?UTF-8?B?aHR0cDovL21hcmNcLmluZm8vXD8=?= X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 11/16/2015 05:19 PM, Alireza Haghdoost wrote: > On Sun, Nov 15, 2015 at 7:08 AM, Avi Kivity wrote: >> Due to a bug in my program, I initiated a read beyond eof. Specifically, the >> file size is 13002 bytes and the read offset is 13312 (0x3400). >> >> I would expect such a read to return 0 bytes read, but io_getevents returns >> -310, which is suspiciously equal to (13002 - 13312). >> >> I attach a reproducer. >> >> 4.2.5-201.fc22.x86_64 >> >> Are my expectations incorrect, or is this a bug in aio or xfs? > I think it is not a bug. This post might be helpful: > http://marc.info/?l=linux-aio&m=142315449930935&w=2 The post indicates that it is a bug. A negative value indicates an error, but there is no error 310. From mhocko@suse.cz Mon Nov 16 10:15:29 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 98D957CBF for ; Mon, 16 Nov 2015 10:15:29 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8869D8F8049 for ; Mon, 16 Nov 2015 08:15:26 -0800 (PST) X-ASG-Debug-ID: 1447690519-04cbb0605db0ba0001-NocioJ Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id NpucZho2Y2ANAIUS (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 16 Nov 2015 08:15:20 -0800 (PST) X-Barracuda-Envelope-From: mhocko@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 3F209AABB; Mon, 16 Nov 2015 16:14:56 +0000 (UTC) Date: Mon, 16 Nov 2015 17:15:18 +0100 From: Michal Hocko To: Arkadiusz =?utf-8?Q?Mi=C5=9Bkiewicz?= Cc: Tetsuo Handa , htejun@gmail.com, cl@linux.com, linux-mm@kvack.org, xfs@oss.sgi.com Subject: Re: memory reclaim problems on fs usage Message-ID: <20151116161518.GI14116@dhcp22.suse.cz> X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage References: <201511102313.36685.arekm@maven.pl> <201511151229.23312.arekm@maven.pl> <201511152313.IJI23764.OHVFJFMSFOtOLQ@I-love.SAKURA.ne.jp> <201511151549.35299.arekm@maven.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <201511151549.35299.arekm@maven.pl> User-Agent: Mutt/1.5.24 (2015-08-30) X-Barracuda-Connect: mx2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1447690520 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24440 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun 15-11-15 15:49:35, Arkadiusz MiÅ›kiewicz wrote: > On Sunday 15 of November 2015, Tetsuo Handa wrote: > > Arkadiusz Miskiewicz wrote: > > > On Sunday 15 of November 2015, Tetsuo Handa wrote: > > > > I think that the vmstat statistics now have correct values. > > > > > > > > > But are these patches solving the problem or just hiding it? > > > > > > > > Excuse me but I can't judge. > > > > > > > > If you are interested in monitoring how vmstat statistics are changing > > > > under stalled condition, you can try below patch. > > > > > > Here is log with this and all previous patches applied: > > > http://ixion.pld-linux.org/~arekm/log-mm-5.txt.gz > > > > Regarding "Node 0 Normal" (min:7104kB low:8880kB high:10656kB), > > all free: values look sane to me. I think that your problem was solved. > > Great, thanks! > > Will all (or part) of these patches > > http://sprunge.us/GYBb Migrate reserves are not a stable material I am afraid. "vmstat: explicitly schedule per-cpu work on the CPU we need it to run on" was not marked for stable either but I am not sure why it should make any difference for your load. I understand that testing this is really tedious but it would be better to know which of the patches actually made a difference. > http://sprunge.us/XWUX (after it gets merged) Yes I plan to mark this one for stable. > be pushed to stable@ or are too risky for stable ? > > > > > $ grep "Normal free:" log-mm-5.txt | cut -b 44- | awk -F' ' ' { print $4 } > > ' | cut -b 6- | sort -g 8608kB > > 8636kB > > 8920kB > > 8920kB > > 8952kB > > 8968kB > > 8980kB > > (...snipped...) > > 215364kB > > 290068kB > > 290428kB > > 291176kB > > 292836kB > > 303992kB > > 306468kB > > 318080kB > > 319548kB > > > > $ grep "Normal free:" log-mm-1.txt | cut -b 44- | awk -F' ' ' { print $4 } > > ' | cut -b 6- | sort -g 0kB > > 40kB > > 128kB > > 128kB > > 128kB > > 128kB > > 128kB > > 128kB > > 128kB > > 128kB > > (...snipped...) > > 412kB > > 616kB > > 1268kB > > 1544kB > > 1696kB > > 2756kB > > 2756kB > > 2756kB > > 2756kB > > 2756kB > > 2756kB > > 2756kB > > > -- > Arkadiusz MiÅ›kiewicz, arekm / ( maven.pl | pld-linux.org ) -- Michal Hocko SUSE Labs From dan.j.williams@intel.com Mon Nov 16 10:58:17 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 71F8A7CBF for ; Mon, 16 Nov 2015 10:58:17 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 2FF108F8049 for ; Mon, 16 Nov 2015 08:58:17 -0800 (PST) X-ASG-Debug-ID: 1447693091-04cbb0605cb3850001-NocioJ Received: from mail-wm0-f48.google.com (mail-wm0-f48.google.com [74.125.82.48]) by cuda.sgi.com with ESMTP id 0lxdxjph1qA2Jdin (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 16 Nov 2015 08:58:12 -0800 (PST) X-Barracuda-Envelope-From: dan.j.williams@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.48 Received: by wmww144 with SMTP id w144so128172141wmw.0 for ; Mon, 16 Nov 2015 08:58:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=kXkmsLCKRQlIbRLj9yKRsgJHRGHreRgXFcHhutQ37Ig=; b=Ddtaw15TapAL/Q+Y+BIpOYnEd348VYVXnmVZzdeT1VSfLGtR6cgckgO6g/wwj1n2uU Hco448IPeQr1HM+CIjfYbsHHRwHaFybAoTqBtUxFxaby9xMOliiQvAmf6awAvTqSNBOb 8LVMrSBhi4I1BSP1q/1nw5nrtJzx1bNzBcgHrxTTsXVpjWmeJ1mAb0+cEg0rwJjIwCWA iWwsXKHWLi3wsXBmr+6EVgme+dmL3ndhKmRRpduZiXsivRHHT4dbonHqYTYMg9N24ahO jRgvmAKi8+YRAFnKkjfJCXQZs+Hq429mdKDn+pEZJ1pct722RC9fnbg3jcMa3pkIK1BI ITmw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=kXkmsLCKRQlIbRLj9yKRsgJHRGHreRgXFcHhutQ37Ig=; b=UI6VT09zZgjuORtIceP8Drb0g3N0FFYRns+/PLFSGVJ6i47718iNl2BxubGiN2jcKf 0zVqO3QUB2ZHTOaFPYLojqp0j/J8+SMlniYNj9rwykn5pm3S2ejFw2+OVk8y97nt2+EY eGeGZe42IXd/N3roySTvWasd2cbg2oaHsDDJwxiSErYYfMBoDC0TF5EPM/MbtX51bRaE GnZO2ehGvIf3FAAiow6CZ/t1dHoL+s5sPXtc/Tfx9FjYSvu5TQgvEHsGrEs7RPyvGHa+ 2ilR7Cjw/yGcHxDYx+ZTLh6rRghTN5Qh5hhR7Ow+M3QDoa2UryyD6MHa2PsTdLgwVyWd Pcqg== X-Gm-Message-State: ALoCoQkYuGyz/DLLcF0x3gRyHhgOVT/4M7DI0026T/SXVzRUhF9ewzTg3FP6eosF+881OAK1lz20 MIME-Version: 1.0 X-Received: by 10.28.134.199 with SMTP id i190mr9595280wmd.33.1447693091345; Mon, 16 Nov 2015 08:58:11 -0800 (PST) Received: by 10.27.88.130 with HTTP; Mon, 16 Nov 2015 08:58:11 -0800 (PST) In-Reply-To: <20151116144130.GD3443@quack.suse.cz> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <20151116144130.GD3443@quack.suse.cz> Date: Mon, 16 Nov 2015 08:58:11 -0800 Message-ID: Subject: Re: [PATCH v2 00/11] DAX fsynx/msync support From: Dan Williams X-ASG-Orig-Subj: Re: [PATCH v2 00/11] DAX fsynx/msync support To: Jan Kara Cc: Ross Zwisler , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Andreas Dilger , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f48.google.com[74.125.82.48] X-Barracuda-Start-Time: 1447693092 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24441 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Mon, Nov 16, 2015 at 6:41 AM, Jan Kara wrote: > On Fri 13-11-15 17:06:39, Ross Zwisler wrote: >> This patch series adds support for fsync/msync to DAX. >> >> Patches 1 through 7 add various utilities that the DAX code will eventually >> need, and the DAX code itself is added by patch 8. Patches 9-11 update the >> three filesystems that currently support DAX, ext2, ext4 and XFS, to use >> the new DAX fsync/msync code. >> >> These patches build on the recent DAX locking changes from Dave Chinner, >> Jan Kara and myself. Dave's changes for XFS and my changes for ext2 have >> been merged in the v4.4 window, but Jan's are still unmerged. You can grab >> them here: >> >> http://www.spinics.net/lists/linux-ext4/msg49951.html > > I had a quick look and the patches look sane to me. I'll try to give them > more detailed look later this week. When thinking about the general design > I was wondering: When we have this infrastructure to track data potentially > lingering in CPU caches, would not it be a performance win to use standard > cached stores in dax_io() and mark corresponding pages as dirty in page > cache the same way as this patch set does it for mmaped writes? I have no > idea how costly are non-temporal stores compared to cached ones and how > would this compare to the cost of dirty tracking so this may be just > completely bogus... Keep in mind that this approach will flush every virtual address that may be dirty. For example, if you touch 1byte in a 2MB page we'll end up looping through the entire 2MB range. At some point the dirty size becomes large enough that is cheaper to flush the entire cache, we have not measured where that crossover point is. From dan.j.williams@intel.com Mon Nov 16 11:29:06 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C90947CBF for ; Mon, 16 Nov 2015 11:29:06 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id BFD80304043 for ; Mon, 16 Nov 2015 09:29:06 -0800 (PST) X-ASG-Debug-ID: 1447694940-04cbb0605eb5ba0001-NocioJ Received: from mail-wm0-f45.google.com (mail-wm0-f45.google.com [74.125.82.45]) by cuda.sgi.com with ESMTP id X28wbBHYIMXBJw4R (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 16 Nov 2015 09:29:01 -0800 (PST) X-Barracuda-Envelope-From: dan.j.williams@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.45 Received: by wmww144 with SMTP id w144so129474690wmw.0 for ; Mon, 16 Nov 2015 09:29:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=eTlQHDOWTN7nhMc5bf86Wz6dyuZNKdiiSQOlmtrXMYk=; b=D+35hgPpO2cLFBy9QgN9fqf155AHf2ZiJGN/IR0xC/nYVlhHxYRiBS91jv4ZkjWX/4 Ph64y4pG5m+OIrENA/ON+o4WvBlVLeBSpT9nuaeKJStu5howOVIg7eDOu4yDVWcoUQ3x 4JzjS3qqJgu+EHMmQp29aGZG4n4u58w4KN7aCsWAh6OldVf0nK05dkXRwXMkHHNrw5J6 suyKHgFh6BZDAnMPQo/0S7y0rmCHDMGSk74wtesRqITLkD886yBmGzObUcPoDFsCrv7U wWiQqFNiZIS3g1Js1YoJhCT0lZtMObehot7cg6DxCn5ySsPMY9NRN2XN+WChz7OZNLpR cbtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=eTlQHDOWTN7nhMc5bf86Wz6dyuZNKdiiSQOlmtrXMYk=; b=d20YHswJU6qPutA7RMG5sCCu89vKPTBvRDyBAgnE5Q7coKDyx3Du//95f23B+RVjqi Fyha7Z89IHfUoWMDe32xFwPl82Is3qeUmuoe9CMRYRmR/5Clk8P4d3rOwJ8L12FX+7wD ZNbiT1ARSNML7O51BjO9iCRi98Vt31e7AwTnBUTJFoHc2eOxAR9YzRLKFTQqV0lVi+Ps /giOC9LGf2H78f2rH/Kvv80GLCFWok0keXsgphnR9sX+4lRbnQN6V9/szjC5H/EDP/c9 oHQRnuhLKK//3VSnUnWLVW3LM4s4qzlVq7l6o0ic6tjhAsw/ZjPJANyHI/vboFlkxoiS e0fw== X-Gm-Message-State: ALoCoQkTv98LpiPF7HJjTHYDvx+ajcmg+EiSiOKVWIj7wDjZfXkkEZxgv1Hex2yVSn/BYO1SnJgp MIME-Version: 1.0 X-Received: by 10.194.84.4 with SMTP id u4mr38351683wjy.149.1447694940039; Mon, 16 Nov 2015 09:29:00 -0800 (PST) Received: by 10.27.88.130 with HTTP; Mon, 16 Nov 2015 09:28:59 -0800 (PST) In-Reply-To: <20151116140526.GA6733@quack.suse.cz> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> <20151116133714.GB3443@quack.suse.cz> <20151116140526.GA6733@quack.suse.cz> Date: Mon, 16 Nov 2015 09:28:59 -0800 Message-ID: Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling From: Dan Williams X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling To: Jan Kara Cc: Andreas Dilger , Ross Zwisler , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f45.google.com[74.125.82.45] X-Barracuda-Start-Time: 1447694940 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24441 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Mon, Nov 16, 2015 at 6:05 AM, Jan Kara wrote: > On Mon 16-11-15 14:37:14, Jan Kara wrote: [..] > But a question: Won't it be better to do sfence + pcommit only in response > to REQ_FLUSH request and don't do it after each write? I'm not sure how > expensive these instructions are but in theory it could be a performance > win, couldn't it? For filesystems this is enough wrt persistency > guarantees... We would need to gather the performance data... The expectation is that the cache flushing is more expensive than the sfence + pcommit. From sandeen@redhat.com Mon Nov 16 11:32:40 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 84E3A7CBF for ; Mon, 16 Nov 2015 11:32:40 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6C465304043 for ; Mon, 16 Nov 2015 09:32:40 -0800 (PST) X-ASG-Debug-ID: 1447695159-04bdf07f0a9ba70001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id cvXuy1HERrurIqff (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 16 Nov 2015 09:32:39 -0800 (PST) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 2E0D78F29C for ; Mon, 16 Nov 2015 17:32:39 +0000 (UTC) Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAGHWcWx022621 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 16 Nov 2015 12:32:38 -0500 To: xfs@oss.sgi.com From: Eric Sandeen X-Enigmail-Draft-Status: N1110 Cc: "Bill O'Donnell" Subject: [PATCH] xfs: get mp from bma->ip in xfs_bmap code Message-ID: <564A1335.6080304@redhat.com> X-ASG-Orig-Subj: [PATCH] xfs: get mp from bma->ip in xfs_bmap code Date: Mon, 16 Nov 2015 11:32:37 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447695159 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 In my earlier commit c29aad4 xfs: pass mp to XFS_WANT_CORRUPTED_GOTO I added some local mp variables with code which indicates that mp might be NULL. Coverity doesn't like this now, because the updated per-fs XFS_STATS macros dereference mp. I don't think this is actually a problem; from what I can tell, we cannot get to these functions with a null bma->tp, so my NULL check was probably pointless. Still, it's not super obvious. So switch this code to get mp from the inode on the xfs_bmalloca structure, with no conditional, because the functions are already using bmap->ip directly. Addresses-Coverity-Id: 1339552 Addresses-Coverity-Id: 1339553 Signed-off-by: Eric Sandeen --- diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 119c242..bb3c659 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -1725,7 +1725,7 @@ xfs_bmap_add_extent_delay_real( int tmp_rval; /* partial logging flags */ struct xfs_mount *mp; - mp = bma->tp ? bma->tp->t_mountp : NULL; + mp = bma->ip->i_mount; ifp = XFS_IFORK_PTR(bma->ip, XFS_DATA_FORK); ASSERT(bma->idx >= 0); @@ -2939,7 +2939,7 @@ xfs_bmap_add_extent_hole_real( int state; /* state bits, accessed thru macros */ struct xfs_mount *mp; - mp = bma->tp ? bma->tp->t_mountp : NULL; + mp = bma->ip->i_mount; ifp = XFS_IFORK_PTR(bma->ip, whichfork); ASSERT(bma->idx >= 0); From jmoyer@redhat.com Mon Nov 16 13:27:51 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1823F7CBF for ; Mon, 16 Nov 2015 13:27:51 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9C388AC00B for ; Mon, 16 Nov 2015 11:27:47 -0800 (PST) X-ASG-Debug-ID: 1447702065-04cbb0605ebd900001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id csbLB3JcoBQk84rB (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 16 Nov 2015 11:27:46 -0800 (PST) X-Barracuda-Envelope-From: jmoyer@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id C553D3C223; Mon, 16 Nov 2015 19:27:45 +0000 (UTC) Received: from segfault.boston.devel.redhat.com (segfault.boston.devel.redhat.com [10.19.60.26]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAGJRiGK030543 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 16 Nov 2015 14:27:44 -0500 From: Jeff Moyer To: Avi Kivity Cc: xfs@oss.sgi.com, linux-aio@kvack.org, Steven Whitehouse , Jan Kara , linux-fsdevel@vger.kernel.org Subject: Re: AIO read returns negative number for bytes read References: <564883BD.8070607@scylladb.com> X-ASG-Orig-Subj: Re: AIO read returns negative number for bytes read X-PGP-KeyID: 1F78E1B4 X-PGP-CertKey: F6FE 280D 8293 F72C 65FD 5A58 1FF8 A7CA 1F78 E1B4 X-PCLoadLetter: What the f**k does that mean? Date: Mon, 16 Nov 2015 14:27:43 -0500 In-Reply-To: <564883BD.8070607@scylladb.com> (Avi Kivity's message of "Sun, 15 Nov 2015 15:08:13 +0200") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447702066 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-ASG-Whitelist: Body =?UTF-8?B?aHR0cDovL21hcmNcLmluZm8vXD8=?= X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi Avi, Avi Kivity writes: > Due to a bug in my program, I initiated a read beyond > eof. Specifically, the file size is 13002 bytes and the read offset is > 13312 (0x3400). > > I would expect such a read to return 0 bytes read, but io_getevents > returns -310, which is suspiciously equal to (13002 - 13312). > > I attach a reproducer. > > 4.2.5-201.fc22.x86_64 > > Are my expectations incorrect, or is this a bug in aio or xfs? Your expectations are correct. The bug was introduced by commit 9fe55eea7e4b4 (Fix race when checking i_size on direct i/o read). I've CC'd the patch author and linux-fsdevel. I'm not sure what the right fix is, given that the size checks were removed from the vfs to fix some race condition. Unfortunately, the commit message doesn't really do a good job of explaining the race. In order to save others time, here is a good explanation of the problem that commit is meant to fix, along with a reproducer: http://marc.info/?l=linux-fsdevel&m=138641356614458&w=2 Thanks for the great bug report, and sorry I have no solution to proffer. Cheers, Jeff From ross.zwisler@linux.intel.com Mon Nov 16 13:48:54 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0BB947CBF for ; Mon, 16 Nov 2015 13:48:54 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id F09E78F8050 for ; Mon, 16 Nov 2015 11:48:53 -0800 (PST) X-ASG-Debug-ID: 1447703328-04cbb0605dbe830001-NocioJ Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by cuda.sgi.com with ESMTP id tdEKvHxWVjlJEYTw for ; Mon, 16 Nov 2015 11:48:49 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 134.134.136.20 X-ASG-Whitelist: EmailCat (corporate) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP; 16 Nov 2015 11:48:49 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,304,1444719600"; d="scan'208";a="852282441" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.87]) by fmsmga002.fm.intel.com with ESMTP; 16 Nov 2015 11:48:47 -0800 Date: Mon, 16 Nov 2015 12:48:46 -0700 From: Ross Zwisler To: Dan Williams Cc: Jan Kara , Andreas Dilger , Ross Zwisler , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Message-ID: <20151116194846.GB32203@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Mail-Followup-To: Ross Zwisler , Dan Williams , Jan Kara , Andreas Dilger , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> <20151116133714.GB3443@quack.suse.cz> <20151116140526.GA6733@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: mga02.intel.com[134.134.136.20] X-Barracuda-Start-Time: 1447703328 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 16, 2015 at 09:28:59AM -0800, Dan Williams wrote: > On Mon, Nov 16, 2015 at 6:05 AM, Jan Kara wrote: > > On Mon 16-11-15 14:37:14, Jan Kara wrote: > [..] > > But a question: Won't it be better to do sfence + pcommit only in response > > to REQ_FLUSH request and don't do it after each write? I'm not sure how > > expensive these instructions are but in theory it could be a performance > > win, couldn't it? For filesystems this is enough wrt persistency > > guarantees... > > We would need to gather the performance data... The expectation is > that the cache flushing is more expensive than the sfence + pcommit. I think we should revisit the idea of removing wmb_pmem() from the I/O path in both the PMEM driver and in DAX, and just relying on the REQ_FUA/REQ_FLUSH path to do wmb_pmem() for all cases. This was brought up in the thread dealing with the "big hammer" fsync/msync patches as well. https://lkml.org/lkml/2015/11/3/730 I think we can all agree from the start that wmb_pmem() will have a nonzero cost, both because of the PCOMMIT and because of the ordering caused by the sfence. If it's possible to avoid doing it on each I/O, I think that would be a win. So, here would be our new flows: PMEM I/O: write I/O(s) to the driver PMEM I/O writes the data using non-temporal stores REQ_FUA/REQ_FLUSH to the PMEM driver wmb_pmem() to order all previous writes and flushes, and to PCOMMIT the dirty data durably to the DIMMs DAX I/O: write I/O(s) to the DAX layer write the data using regular stores (eventually to be replaced with non-temporal stores) flush the data with wb_cache_pmem() (removed when we use non-temporal stores) REQ_FUA/REQ_FLUSH to the PMEM driver wmb_pmem() to order all previous writes and flushes, and to PCOMMIT the dirty data durably to the DIMMs DAX msync/fsync: writes happen to DAX mmaps from userspace DAX fsync/msync all dirty pages are written back using wb_cache_pmem() REQ_FUA/REQ_FLUSH to the PMEM driver wmb_pmem() to order all previous writes and flushes, and to PCOMMIT the dirty data durably to the DIMMs DAX/PMEM zeroing (suggested by Dave: https://lkml.org/lkml/2015/11/2/772): PMEM driver receives zeroing request writes a bunch of zeroes using non-temporal stores REQ_FUA/REQ_FLUSH to the PMEM driver wmb_pmem() to order all previous writes and flushes, and to PCOMMIT the dirty data durably to the DIMMs Having all these flows wait to do wmb_pmem() in the PMEM driver in response to REQ_FUA/REQ_FLUSH has several advantages: 1) The work done and guarantees provided after each step closely match the normal block I/O to disk case. This means that the existing algorithms used by filesystems to make sure that their metadata is ordered properly and synced at a known time should all work the same. 2) By delaying wmb_pmem() until REQ_FUA/REQ_FLUSH time we can potentially do many I/Os at different levels, and order them all with a single wmb_pmem(). This should result in a performance win. Is there any reason why this wouldn't work or wouldn't be a good idea? From ross.zwisler@linux.intel.com Mon Nov 16 14:01:18 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 40CEC7CBF for ; Mon, 16 Nov 2015 14:01:18 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 169178F8059 for ; Mon, 16 Nov 2015 12:01:17 -0800 (PST) X-ASG-Debug-ID: 1447704070-04bdf07f09a52b0001-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id cK3cA1W0jo48OBsJ for ; Mon, 16 Nov 2015 12:01:10 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP; 16 Nov 2015 12:01:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,304,1444719600"; d="scan'208";a="839932371" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.87]) by fmsmga001.fm.intel.com with ESMTP; 16 Nov 2015 12:01:04 -0800 Date: Mon, 16 Nov 2015 13:01:02 -0700 From: Ross Zwisler To: Dan Williams Cc: Jan Kara , Ross Zwisler , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 00/11] DAX fsynx/msync support Message-ID: <20151116200102.GA9737@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH v2 00/11] DAX fsynx/msync support Mail-Followup-To: Ross Zwisler , Dan Williams , Jan Kara , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <20151116144130.GD3443@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447704070 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.60 X-Barracuda-Spam-Status: No, SCORE=2.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC7_SA_HREF_FROM_MISMATCH_TEXT_URIx1_HL, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24448 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 2.50 BSF_SC7_SA_HREF_FROM_MISMATCH_TEXT_URIx1_HL Custom Rule HREF_FROM_MISMATCH_TEXT_URIx1_HL On Mon, Nov 16, 2015 at 08:58:11AM -0800, Dan Williams wrote: > On Mon, Nov 16, 2015 at 6:41 AM, Jan Kara wrote: > > On Fri 13-11-15 17:06:39, Ross Zwisler wrote: > >> This patch series adds support for fsync/msync to DAX. > >> > >> Patches 1 through 7 add various utilities that the DAX code will eventually > >> need, and the DAX code itself is added by patch 8. Patches 9-11 update the > >> three filesystems that currently support DAX, ext2, ext4 and XFS, to use > >> the new DAX fsync/msync code. > >> > >> These patches build on the recent DAX locking changes from Dave Chinner, > >> Jan Kara and myself. Dave's changes for XFS and my changes for ext2 have > >> been merged in the v4.4 window, but Jan's are still unmerged. You can grab > >> them here: > >> > >> http://www.spinics.net/lists/linux-ext4/msg49951.html > > > > I had a quick look and the patches look sane to me. I'll try to give them > > more detailed look later this week. When thinking about the general design > > I was wondering: When we have this infrastructure to track data potentially > > lingering in CPU caches, would not it be a performance win to use standard > > cached stores in dax_io() and mark corresponding pages as dirty in page > > cache the same way as this patch set does it for mmaped writes? I have no > > idea how costly are non-temporal stores compared to cached ones and how > > would this compare to the cost of dirty tracking so this may be just > > completely bogus... > > Keep in mind that this approach will flush every virtual address that > may be dirty. For example, if you touch 1byte in a 2MB page we'll end > up looping through the entire 2MB range. At some point the dirty size > becomes large enough that is cheaper to flush the entire cache, we > have not measured where that crossover point is. Yep, I expect there will be a crossover point where flushing the entire processor cache will be beneficial. I agree with Dan that we'll need to figure this out via measurement, and that we'd similarly need measurements to justify the decision to write dirty data at the DAX level without flushing and mark entries as dirty for fsync/msync to clean up later. It could turn out to be great, but we'll have to see. :) From ross.zwisler@linux.intel.com Mon Nov 16 14:10:17 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 374977CBF for ; Mon, 16 Nov 2015 14:10:17 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id C966CAC004 for ; Mon, 16 Nov 2015 12:10:13 -0800 (PST) X-ASG-Debug-ID: 1447704609-04bdf07f08a5a90001-NocioJ Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by cuda.sgi.com with ESMTP id X9afSa9aC48SIS2X for ; Mon, 16 Nov 2015 12:10:09 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 134.134.136.24 X-ASG-Whitelist: EmailCat (corporate) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP; 16 Nov 2015 12:09:52 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,304,1444719600"; d="scan'208";a="852110538" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.87]) by orsmga002.jf.intel.com with ESMTP; 16 Nov 2015 12:09:51 -0800 Date: Mon, 16 Nov 2015 13:09:50 -0700 From: Ross Zwisler To: Dan Williams Cc: Andreas Dilger , Ross Zwisler , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Message-ID: <20151116200950.GB9737@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Mail-Followup-To: Ross Zwisler , Dan Williams , Andreas Dilger , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: mga09.intel.com[134.134.136.24] X-Barracuda-Start-Time: 1447704609 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Nov 13, 2015 at 06:32:40PM -0800, Dan Williams wrote: > On Fri, Nov 13, 2015 at 4:43 PM, Andreas Dilger wrote: > > On Nov 13, 2015, at 5:20 PM, Dan Williams wrote: > >> > >> On Fri, Nov 13, 2015 at 4:06 PM, Ross Zwisler > >> wrote: > >>> Currently the PMEM driver doesn't accept REQ_FLUSH or REQ_FUA bios. These > >>> are sent down via blkdev_issue_flush() in response to a fsync() or msync() > >>> and are used by filesystems to order their metadata, among other things. > >>> > >>> When we get an msync() or fsync() it is the responsibility of the DAX code > >>> to flush all dirty pages to media. The PMEM driver then just has issue a > >>> wmb_pmem() in response to the REQ_FLUSH to ensure that before we return all > >>> the flushed data has been durably stored on the media. > >>> > >>> Signed-off-by: Ross Zwisler > >> > >> Hmm, I'm not seeing why we need this patch. If the actual flushing of > >> the cache is done by the core why does the driver need support > >> REQ_FLUSH? Especially since it's just a couple instructions. REQ_FUA > >> only makes sense if individual writes can bypass the "drive" cache, > >> but no I/O submitted to the driver proper is ever cached we always > >> flush it through to media. > > > > If the upper level filesystem gets an error when submitting a flush > > request, then it assumes the underlying hardware is broken and cannot > > be as aggressive in IO submission, but instead has to wait for in-flight > > IO to complete. > > Upper level filesystems won't get errors when the driver does not > support flush. Those requests are ended cleanly in > generic_make_request_checks(). Yes, the fs still needs to wait for > outstanding I/O to complete but in the case of pmem all I/O is > synchronous. There's never anything to await when flushing at the > pmem driver level. > > > Since FUA/FLUSH is basically a no-op for pmem devices, > > it doesn't make sense _not_ to support this functionality. > > Seems to be a nop either way. Given that DAX may lead to dirty data > pending to the device in the cpu cache that a REQ_FLUSH request will > not touch, its better to leave it all to the mm core to handle. I.e. > it doesn't make sense to call the driver just for two instructions > (sfence + pcommit) when the mm core is taking on the cache flushing. > Either handle it all in the mm or the driver, not a mixture. Does anyone know if ext4 and/or XFS alter their algorithms based on whether the driver supports REQ_FLUSH/REQ_FUA? Will the filesystem behave more efficiently with respect to their internal I/O ordering, etc., if PMEM advertises REQ_FLUSH/REQ_FUA support, even though we could do the same thing at the DAX layer? From dan.j.williams@intel.com Mon Nov 16 14:35:02 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 538BF7CBF for ; Mon, 16 Nov 2015 14:35:02 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 29184304032 for ; Mon, 16 Nov 2015 12:34:59 -0800 (PST) X-ASG-Debug-ID: 1447706095-04bdf07f07a6db0001-NocioJ Received: from mail-wm0-f50.google.com (mail-wm0-f50.google.com [74.125.82.50]) by cuda.sgi.com with ESMTP id TNTqZMzPowfAt8Cc (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 16 Nov 2015 12:34:56 -0800 (PST) X-Barracuda-Envelope-From: dan.j.williams@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.50 Received: by wmvv187 with SMTP id v187so196179633wmv.1 for ; Mon, 16 Nov 2015 12:34:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel_com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=oeTr6SZaYSbqNbHYUymYGCuZ3dhCmluCBCkD+SFiVKw=; b=PsrfrtZEXwiof3yAHI4f+nHUV7YVJm4Tkh2kogFs7YuKc9A2YcmK9uPSnwGfFNwUsC g4cSIycAulQGa6pEhi4CwMbSD7vBB8Fd91rGlutafVoTLe6MPiKC65mx9HnLY3Es978h FyhJm5ylin5bZwcaWB0RDVIfUCwQVnQ8ZsEki5LCetEPmjlY0R9kG1a31DdNNrTy44ES ee4cmoRzbEtQYo3e4v+E7FNtitCmgnhPw09MlsCb2G0gms8znwywQvAtcqEvQtyS0vOs ytv/VEekttOnxgqU0Jmrkjk4usPrYhDBZsyB6FrMxYT5Ecn54KiUnCUO/1EtrpaVBneH 44ew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=oeTr6SZaYSbqNbHYUymYGCuZ3dhCmluCBCkD+SFiVKw=; b=DE9FkpU6XnzrTjwjF4pcYXarZnUVMpFeBCvSGJkOC2lOEXrfUFBvd69NrYxFIWxjV0 gRjTIiK4VcUwhuvfG+b8WV1/YQNmG4lu99hTwMUcHnccq3rw9wZU5oSNT3MT+Xki/YXN yFzq9Yuy0VB5MD2mndDazXwiL9Jraj1OWe6iPGWLgCLKNsh88s2PKOKGwjgtsqwG010p idxDQmKjQZHDQMNhS5rUz16ZKS+K1kdbK2rXI3OCOQU0G2K0ghb8Yj4Lxh9xEoXE/T27 lwj36aC1rEfhFAishsXxV9fryYjhbLJOQJje/A/6/dSENDUUprFKiJexsoG8JUik8hnS 3jVw== X-Gm-Message-State: ALoCoQm07l9HhC0g4kYXzZzf825++vgdUwOzzFZD5ChpzbzJ4C87x7IqxJgCImWreVg74b/axxA5 MIME-Version: 1.0 X-Received: by 10.194.84.4 with SMTP id u4mr39148094wjy.149.1447706095205; Mon, 16 Nov 2015 12:34:55 -0800 (PST) Received: by 10.27.88.130 with HTTP; Mon, 16 Nov 2015 12:34:55 -0800 (PST) In-Reply-To: <20151116194846.GB32203@linux.intel.com> References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> <20151116133714.GB3443@quack.suse.cz> <20151116140526.GA6733@quack.suse.cz> <20151116194846.GB32203@linux.intel.com> Date: Mon, 16 Nov 2015 12:34:55 -0800 Message-ID: Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling From: Dan Williams X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling To: Ross Zwisler , Dan Williams , Jan Kara , Andreas Dilger , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , "Theodore Ts'o" , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f50.google.com[74.125.82.50] X-Barracuda-Start-Time: 1447706096 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24449 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Mon, Nov 16, 2015 at 11:48 AM, Ross Zwisler wrote: > On Mon, Nov 16, 2015 at 09:28:59AM -0800, Dan Williams wrote: >> On Mon, Nov 16, 2015 at 6:05 AM, Jan Kara wrote: >> > On Mon 16-11-15 14:37:14, Jan Kara wrote: [..] > Is there any reason why this wouldn't work or wouldn't be a good idea? We don't have numbers to support the claim that pcommit is so expensive as to need be deferred, especially if the upper layers are already taking the hit on doing the flushes. REQ_FLUSH, means flush your volatile write cache. Currently all I/O through the driver never hits a volatile cache so there's no need to tell the block layer that we have a volatile write cache, especially when you have the core mm taking responsibility for doing cache maintenance for dax-mmap ranges. We also don't have numbers on if/when wbinvd is a more performant solution. tl;dr Now that we have a baseline implementation can we please use data to make future arch decisions? From david@fromorbit.com Mon Nov 16 14:58:52 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 190287F5D for ; Mon, 16 Nov 2015 14:58:52 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id D2D8C8F8050 for ; Mon, 16 Nov 2015 12:58:51 -0800 (PST) X-ASG-Debug-ID: 1447707527-04bdf07f08a8150001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id EXZhZPuCEX1iePAC for ; Mon, 16 Nov 2015 12:58:48 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DYCQDmQkpWPIYELHldKAECgxCBQoJfgUqCNKR9AQEBAQEBBoszhS2CfYEQhgoCAgEBAoFGTQEBAQEBAQcBAQEBQT+ENAEBAQMBOhwjBQsIAxgJJQ8FJQMHGhOIJge7EQEBAQcCASAZhXSFRYk5BY0biS2NH5xNgnQdgWoqNIUKAQEB Received: from ppp121-44-4-134.lns20.syd4.internode.on.net (HELO dastard) ([121.44.4.134]) by ipmail06.adl2.internode.on.net with ESMTP; 17 Nov 2015 07:28:46 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZyQrN-00068G-UM; Tue, 17 Nov 2015 07:58:45 +1100 Date: Tue, 17 Nov 2015 07:58:45 +1100 From: Dave Chinner To: "Darrick J. Wong" Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [PATCH 01/12] test-scripts: test migration scripts Message-ID: <20151116205845.GK14311@dastard> X-ASG-Orig-Subj: Re: [PATCH 01/12] test-scripts: test migration scripts References: <20151113213643.31124.80975.stgit@birch.djwong.org> <20151113213650.31124.16817.stgit@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151113213650.31124.16817.stgit@birch.djwong.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1447707527 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24449 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Fri, Nov 13, 2015 at 01:36:50PM -0800, Darrick J. Wong wrote: > Add two scripts: "nextid" finds the next available test ID number in a > group, and "mvtest" relocates a test, fixes the golden output, and > moves the group entry for that test. > > Signed-off-by: Darrick J. Wong > --- > mvtest | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > nextid | 35 +++++++++++++++++++++++++++++++++++ These should be placed in the "tools" directory. > create mode 100755 mvtest > create mode 100755 nextid > > > diff --git a/mvtest b/mvtest > new file mode 100755 > index 0000000..b5406d1 > --- /dev/null > +++ b/mvtest > @@ -0,0 +1,58 @@ > +#!/bin/sh > + > +# Renumber a test > + > +if [ -z "$1" ] || [ "$1" = "--help" ]; then > + echo "Usage: $0 path_to_test new_path_to_test" > + exit 1 > +fi > + > +src="$1" > +dest="$2" > + > +die() { > + echo "$@" > + exit 1 > +} > + > +nsort() { > + sort -g < "$1" > "$2" > +} > + > +append() { > + out="$1" > + shift > + echo "$@" >> "${out}" > +} > + > +test "${src}" != "${dest}" || die "Test \"${src}\" is the same as dest." > +test -e "tests/${src}" || die "Test \"${src}\" does not exist." > +test ! -e "tests/${dest}" || die "Test \"${src}\" already exists." > + > +sid="$(basename "${src}")" > +did="$(basename "${dest}")" > + > +sgroup="$(basename "$(dirname "tests/${src}")")" > +dgroup="$(basename "$(dirname "tests/${dest}")")" > + > +sgroupfile="tests/${sgroup}/group" > +dgroupfile="tests/${sgroup}/group" > + > +$DBG git mv "tests/${src}" "tests/${dest}" $DBG? .... > +$DBG sed -e "/^${sid}.*$/d" -i "${sgroupfile}" > +$DBG cp "${dgroupfile}" "${dgroupfile}.new" > +$DBG append "${dgroupfile}.new" "${newgrpline}" > +$DBG nsort "${dgroupfile}.new" "${dgroupfile}" What does this do to comments in the group file? ... > diff --git a/nextid b/nextid > new file mode 100755 > index 0000000..285b549 > --- /dev/null > +++ b/nextid > @@ -0,0 +1,35 @@ > +#!/bin/sh > + > +# Given a group name, find the next available test number. > + > +if [ -z "$1" ] || [ "$1" = "--help" ]; then > + echo "Usage: $0 groupname[/start_looking_at_this_number]" > + exit 1 > +fi > + > +die() { > + echo "$@" > + exit 1 > +} > + > +if [ "$(basename "$1")" != "$1" ]; then > + group="$(dirname "$1")" > + id="$(basename "$1")" > +else > + group="$1" > + id=1 > +fi > +test -e "tests/${group}/group" || die "Unknown group \"${group}\"." > + > +while test "${id}" -lt 1000; do > + name="$(printf "%.03d" "${id}")" > + if [ ! -e "tests/${group}/${name}" ]; then > + echo "${group}/${name}" > + exit 0 > + fi > + id=$((id + 1)) > +done > + > +echo "No free IDs less than ${id} in group \"${group}\"." So the "new" script does this differently, by reading the group file and looking for the first non-contiguous ID in the file. It doesn't need scan ID limits because EOF triggers that. Wouldn't it be better to to factor the code out of the "new" script to find the next id, and then have the new script call that? Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Nov 16 16:14:30 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 263A07F54 for ; Mon, 16 Nov 2015 16:14:30 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id AE7C7AC006 for ; Mon, 16 Nov 2015 14:14:29 -0800 (PST) X-ASG-Debug-ID: 1447712065-04cb6c0cd1a3500001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id yXOV58MbKTL0dNVK for ; Mon, 16 Nov 2015 14:14:26 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2AfCgD7VEpWPIYELHldKAECgxCBAEKCX4N+pH4BAQEBAQEGizOFLYJ9gRCGCgICAQECgUhNAQEBAQEBBwEBAQFBP4Q0AQEBAwE6HCMFCwgDDgoJJQ8FJQMHGhMeiAgHuwsBAQEHAgEgGYV0hUWERIR1BZZIiA6FEY80jRmEeyo0AYNAgUkBAQE Received: from ppp121-44-4-134.lns20.syd4.internode.on.net (HELO dastard) ([121.44.4.134]) by ipmail06.adl2.internode.on.net with ESMTP; 17 Nov 2015 08:44:13 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZyS2O-0006K3-8z; Tue, 17 Nov 2015 09:14:12 +1100 Date: Tue, 17 Nov 2015 09:14:12 +1100 From: Dave Chinner To: Jan Kara Cc: Dan Williams , Andreas Dilger , Ross Zwisler , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Message-ID: <20151116221412.GV19199@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> <20151116133714.GB3443@quack.suse.cz> <20151116140526.GA6733@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151116140526.GA6733@quack.suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1447712065 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24451 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Nov 16, 2015 at 03:05:26PM +0100, Jan Kara wrote: > On Mon 16-11-15 14:37:14, Jan Kara wrote: > > On Fri 13-11-15 18:32:40, Dan Williams wrote: > > > On Fri, Nov 13, 2015 at 4:43 PM, Andreas Dilger wrote: > > > > On Nov 13, 2015, at 5:20 PM, Dan Williams wrote: > > > >> > > > >> On Fri, Nov 13, 2015 at 4:06 PM, Ross Zwisler > > > >> wrote: > > > >>> Currently the PMEM driver doesn't accept REQ_FLUSH or REQ_FUA bios. These > > > >>> are sent down via blkdev_issue_flush() in response to a fsync() or msync() > > > >>> and are used by filesystems to order their metadata, among other things. > > > >>> > > > >>> When we get an msync() or fsync() it is the responsibility of the DAX code > > > >>> to flush all dirty pages to media. The PMEM driver then just has issue a > > > >>> wmb_pmem() in response to the REQ_FLUSH to ensure that before we return all > > > >>> the flushed data has been durably stored on the media. > > > >>> > > > >>> Signed-off-by: Ross Zwisler > > > >> > > > >> Hmm, I'm not seeing why we need this patch. If the actual flushing of > > > >> the cache is done by the core why does the driver need support > > > >> REQ_FLUSH? Especially since it's just a couple instructions. REQ_FUA > > > >> only makes sense if individual writes can bypass the "drive" cache, > > > >> but no I/O submitted to the driver proper is ever cached we always > > > >> flush it through to media. > > > > > > > > If the upper level filesystem gets an error when submitting a flush > > > > request, then it assumes the underlying hardware is broken and cannot > > > > be as aggressive in IO submission, but instead has to wait for in-flight > > > > IO to complete. > > > > > > Upper level filesystems won't get errors when the driver does not > > > support flush. Those requests are ended cleanly in > > > generic_make_request_checks(). Yes, the fs still needs to wait for > > > outstanding I/O to complete but in the case of pmem all I/O is > > > synchronous. There's never anything to await when flushing at the > > > pmem driver level. > > > > > > > Since FUA/FLUSH is basically a no-op for pmem devices, > > > > it doesn't make sense _not_ to support this functionality. > > > > > > Seems to be a nop either way. Given that DAX may lead to dirty data > > > pending to the device in the cpu cache that a REQ_FLUSH request will > > > not touch, its better to leave it all to the mm core to handle. I.e. > > > it doesn't make sense to call the driver just for two instructions > > > (sfence + pcommit) when the mm core is taking on the cache flushing. > > > Either handle it all in the mm or the driver, not a mixture. > > > > So I think REQ_FLUSH requests *must* end up doing sfence + pcommit because > > e.g. journal writes going through block layer or writes done through > > dax_do_io() must be on permanent storage once REQ_FLUSH request finishes > > and the way driver does IO doesn't guarantee this, does it? > > Hum, and looking into how dax_do_io() works and what drivers/nvdimm/pmem.c > does, I'm indeed wrong because they both do wmb_pmem() after each write > which seems to include sfence + pcommit. Sorry for confusion. Which I want to remove, because it makes DAX IO 3x slower than buffered IO on ramdisk based testing. > But a question: Won't it be better to do sfence + pcommit only in response > to REQ_FLUSH request and don't do it after each write? I'm not sure how > expensive these instructions are but in theory it could be a performance > win, couldn't it? For filesystems this is enough wrt persistency > guarantees... I'm pretty sure it would be, because all of the overhead (and therefore latency) I measured is in the cache flushing instructions. But before we can remove the wmb_pmem() from dax_do_io(), we need the underlying device to support REQ_FLUSH correctly... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Nov 16 16:42:31 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B8F4F7F54 for ; Mon, 16 Nov 2015 16:42:31 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8C6AA8F8035 for ; Mon, 16 Nov 2015 14:42:28 -0800 (PST) X-ASG-Debug-ID: 1447713744-04bdf07f09ad200001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id d9u7n17X2IQ07gV4 for ; Mon, 16 Nov 2015 14:42:25 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CWCQCjWkpWPIYELHldKAECgxCBQoJfg36kfgEBAQEBAQaLM4Utgn2BEIYKAgIBAQKBSE0BAQEBAQEHAQEBAUE/hDUBAQQnExwjEAgDGAklDwUlAwcaE4gtuxsBAQEHAgEgGYV0hUWJOQWWSI0fjzSNGYJ0HYFqKjQBhQkBAQE Received: from ppp121-44-4-134.lns20.syd4.internode.on.net (HELO dastard) ([121.44.4.134]) by ipmail06.adl2.internode.on.net with ESMTP; 17 Nov 2015 09:12:23 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZySTe-0006O5-NX; Tue, 17 Nov 2015 09:42:22 +1100 Date: Tue, 17 Nov 2015 09:42:22 +1100 From: Dave Chinner To: Ross Zwisler Cc: linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 07/11] mm: add find_get_entries_tag() Message-ID: <20151116224222.GW19199@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 07/11] mm: add find_get_entries_tag() References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-8-git-send-email-ross.zwisler@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447459610-14259-8-git-send-email-ross.zwisler@linux.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1447713745 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24452 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Nov 13, 2015 at 05:06:46PM -0700, Ross Zwisler wrote: > Add find_get_entries_tag() to the family of functions that include > find_get_entries(), find_get_pages() and find_get_pages_tag(). This is > needed for DAX dirty page handling because we need a list of both page > offsets and radix tree entries ('indices' and 'entries' in this function) > that are marked with the PAGECACHE_TAG_TOWRITE tag. > > Signed-off-by: Ross Zwisler > --- > include/linux/pagemap.h | 3 +++ > mm/filemap.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 64 insertions(+) > > diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h > index a6c78e0..6fea3be 100644 > --- a/include/linux/pagemap.h > +++ b/include/linux/pagemap.h > @@ -354,6 +354,9 @@ unsigned find_get_pages_contig(struct address_space *mapping, pgoff_t start, > unsigned int nr_pages, struct page **pages); > unsigned find_get_pages_tag(struct address_space *mapping, pgoff_t *index, > int tag, unsigned int nr_pages, struct page **pages); > +unsigned find_get_entries_tag(struct address_space *mapping, pgoff_t start, > + int tag, unsigned int nr_entries, > + struct page **entries, pgoff_t *indices); > > struct page *grab_cache_page_write_begin(struct address_space *mapping, > pgoff_t index, unsigned flags); > diff --git a/mm/filemap.c b/mm/filemap.c > index d5e94fd..89ab448 100644 > --- a/mm/filemap.c > +++ b/mm/filemap.c > @@ -1454,6 +1454,67 @@ repeat: > } > EXPORT_SYMBOL(find_get_pages_tag); > > +/** > + * find_get_entries_tag - find and return entries that match @tag > + * @mapping: the address_space to search > + * @start: the starting page cache index > + * @tag: the tag index > + * @nr_entries: the maximum number of entries > + * @entries: where the resulting entries are placed > + * @indices: the cache indices corresponding to the entries in @entries > + * > + * Like find_get_entries, except we only return entries which are tagged with > + * @tag. > + */ > +unsigned find_get_entries_tag(struct address_space *mapping, pgoff_t start, > + int tag, unsigned int nr_entries, > + struct page **entries, pgoff_t *indices) > +{ > + void **slot; > + unsigned int ret = 0; > + struct radix_tree_iter iter; > + > + if (!nr_entries) > + return 0; > + > + rcu_read_lock(); > +restart: > + radix_tree_for_each_tagged(slot, &mapping->page_tree, > + &iter, start, tag) { > + struct page *page; > +repeat: > + page = radix_tree_deref_slot(slot); > + if (unlikely(!page)) > + continue; > + if (radix_tree_exception(page)) { > + if (radix_tree_deref_retry(page)) > + goto restart; That restart condition looks wrong. ret can be non-zero, but we start looking from the original start index again, resulting in duplicates being added to the return arrays... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Nov 16 16:58:13 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 737377F54 for ; Mon, 16 Nov 2015 16:58:13 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 61DC28F8035 for ; Mon, 16 Nov 2015 14:58:13 -0800 (PST) X-ASG-Debug-ID: 1447714689-04cb6c0cd1a51c0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id TGkCRpTaMhEMCJ97 for ; Mon, 16 Nov 2015 14:58:09 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CWCQBWXkpWPIYELHldKAECgxCBQoJfg36kfgEBAQEBAQaLM4Utgn2BEIYKAgIBAQKBRk0BAQEBAQEHAQEBAUE/hDUBAQQnExwjEAgDGAklDwUlAwcaE4gtuxQBAQEHAgEgGYV0hUWERIR1BYdBhVqBMoQag2GNH4NUmHmCdB2Baio0AYNAgUkBAQE Received: from ppp121-44-4-134.lns20.syd4.internode.on.net (HELO dastard) ([121.44.4.134]) by ipmail06.adl2.internode.on.net with ESMTP; 17 Nov 2015 09:28:07 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZySit-0006Py-30; Tue, 17 Nov 2015 09:58:07 +1100 Date: Tue, 17 Nov 2015 09:58:07 +1100 From: Dave Chinner To: Ross Zwisler Cc: linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 08/11] dax: add support for fsync/sync Message-ID: <20151116225807.GX19199@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 08/11] dax: add support for fsync/sync References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-9-git-send-email-ross.zwisler@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447459610-14259-9-git-send-email-ross.zwisler@linux.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1447714689 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24452 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Nov 13, 2015 at 05:06:47PM -0700, Ross Zwisler wrote: > To properly handle fsync/msync in an efficient way DAX needs to track dirty > pages so it is able to flush them durably to media on demand. > > The tracking of dirty pages is done via the radix tree in struct > address_space. This radix tree is already used by the page writeback > infrastructure for tracking dirty pages associated with an open file, and > it already has support for exceptional (non struct page*) entries. We > build upon these features to add exceptional entries to the radix tree for > DAX dirty PMD or PTE pages at fault time. > > When called as part of the msync/fsync flush path DAX queries the radix > tree for dirty entries, flushing them and then marking the PTE or PMD page > table entries as clean. The step of cleaning the PTE or PMD entries is > necessary so that on subsequent writes to the same page we get a new write > fault allowing us to once again dirty the DAX tag in the radix tree. > > Signed-off-by: Ross Zwisler > --- > fs/dax.c | 140 +++++++++++++++++++++++++++++++++++++++++++++++++--- > include/linux/dax.h | 1 + > mm/huge_memory.c | 14 +++--- > 3 files changed, 141 insertions(+), 14 deletions(-) > > diff --git a/fs/dax.c b/fs/dax.c > index 131fd35a..9ce6d1b 100644 > --- a/fs/dax.c > +++ b/fs/dax.c > @@ -24,7 +24,9 @@ > #include > #include > #include > +#include > #include > +#include > #include > #include > #include > @@ -287,6 +289,53 @@ static int copy_user_bh(struct page *to, struct buffer_head *bh, > return 0; > } > > +static int dax_dirty_pgoff(struct address_space *mapping, unsigned long pgoff, > + void __pmem *addr, bool pmd_entry) > +{ > + struct radix_tree_root *page_tree = &mapping->page_tree; > + int error = 0; > + void *entry; > + > + __mark_inode_dirty(mapping->host, I_DIRTY_PAGES); > + > + spin_lock_irq(&mapping->tree_lock); > + entry = radix_tree_lookup(page_tree, pgoff); > + if (addr == NULL) { > + if (entry) > + goto dirty; > + else { > + WARN(1, "DAX pfn_mkwrite failed to find an entry"); > + goto out; > + } > + } > + > + if (entry) { > + if (pmd_entry && RADIX_DAX_TYPE(entry) == RADIX_DAX_PTE) { > + radix_tree_delete(&mapping->page_tree, pgoff); > + mapping->nrdax--; > + } else > + goto dirty; > + } Logic is pretty spagettied here. Perhaps: entry = radix_tree_lookup(page_tree, pgoff); if (entry) { if (!pmd_entry || RADIX_DAX_TYPE(entry) == RADIX_DAX_PMD)) goto dirty; radix_tree_delete(&mapping->page_tree, pgoff); mapping->nrdax--; } else { WARN_ON(!addr); goto out_unlock; } .... > + > + BUG_ON(RADIX_DAX_TYPE(addr)); > + if (pmd_entry) > + error = radix_tree_insert(page_tree, pgoff, > + RADIX_DAX_PMD_ENTRY(addr)); > + else > + error = radix_tree_insert(page_tree, pgoff, > + RADIX_DAX_PTE_ENTRY(addr)); > + > + if (error) > + goto out; > + > + mapping->nrdax++; > + dirty: > + radix_tree_tag_set(page_tree, pgoff, PAGECACHE_TAG_DIRTY); > + out: > + spin_unlock_irq(&mapping->tree_lock); label should be "out_unlock" rather "out" to indicate in the code that we are jumping to the correct spot in the error stack... > + goto fallback; > } > > out: > @@ -689,15 +746,12 @@ EXPORT_SYMBOL_GPL(dax_pmd_fault); > * dax_pfn_mkwrite - handle first write to DAX page > * @vma: The virtual memory area where the fault occurred > * @vmf: The description of the fault > - * > */ > int dax_pfn_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) > { > - struct super_block *sb = file_inode(vma->vm_file)->i_sb; > + struct file *file = vma->vm_file; > > - sb_start_pagefault(sb); > - file_update_time(vma->vm_file); > - sb_end_pagefault(sb); > + dax_dirty_pgoff(file->f_mapping, vmf->pgoff, NULL, false); > return VM_FAULT_NOPAGE; This seems wrong - it's dropping the freeze protection on fault, and now the inode timestamp won't get updated, either. > } > EXPORT_SYMBOL_GPL(dax_pfn_mkwrite); > @@ -772,3 +826,77 @@ int dax_truncate_page(struct inode *inode, loff_t from, get_block_t get_block) > return dax_zero_page_range(inode, from, length, get_block); > } > EXPORT_SYMBOL_GPL(dax_truncate_page); > + > +static void dax_sync_entry(struct address_space *mapping, pgoff_t pgoff, > + void *entry) > +{ dax_writeback_pgoff() seems like a more consistent name (consider dax_dirty_pgoff), and that we are actually doing a writeback operation, not a "sync" operation. > + struct radix_tree_root *page_tree = &mapping->page_tree; > + int type = RADIX_DAX_TYPE(entry); > + size_t size; > + > + BUG_ON(type != RADIX_DAX_PTE && type != RADIX_DAX_PMD); > + > + spin_lock_irq(&mapping->tree_lock); > + if (!radix_tree_tag_get(page_tree, pgoff, PAGECACHE_TAG_TOWRITE)) { > + /* another fsync thread already wrote back this entry */ > + spin_unlock_irq(&mapping->tree_lock); > + return; > + } > + radix_tree_tag_clear(page_tree, pgoff, PAGECACHE_TAG_TOWRITE); > + radix_tree_tag_clear(page_tree, pgoff, PAGECACHE_TAG_DIRTY); > + spin_unlock_irq(&mapping->tree_lock); > + > + if (type == RADIX_DAX_PMD) > + size = PMD_SIZE; > + else > + size = PAGE_SIZE; > + > + wb_cache_pmem(RADIX_DAX_ADDR(entry), size); > + pgoff_mkclean(pgoff, mapping); This looks racy w.r.t. another operation setting the radix tree dirty tags. i.e. there is no locking to serialise marking the vma/pte clean and another operation marking the radix tree dirty. > +} > + > +/* > + * Flush the mapping to the persistent domain within the byte range of (start, > + * end). This is required by data integrity operations to ensure file data is on > + * persistent storage prior to completion of the operation. It also requires us > + * to clean the mappings (i.e. write -> RO) so that we'll get a new fault when > + * the file is written to again so we have an indication that we need to flush > + * the mapping if a data integrity operation takes place. > + * > + * We don't need commits to storage here - the filesystems will issue flushes > + * appropriately at the conclusion of the data integrity operation via REQ_FUA > + * writes or blkdev_issue_flush() commands. This requires the DAX block device > + * to implement persistent storage domain fencing/commits on receiving a > + * REQ_FLUSH or REQ_FUA request so that this works as expected by the higher > + * layers. > + */ > +void dax_fsync(struct address_space *mapping, loff_t start, loff_t end) > +{ dax_writeback_mapping_range() Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Nov 16 17:12:30 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6FBE57F54 for ; Mon, 16 Nov 2015 17:12:30 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 354B38F8033 for ; Mon, 16 Nov 2015 15:12:27 -0800 (PST) X-ASG-Debug-ID: 1447715544-04bdf07f07ae620001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id z136fcuSCrD9JZIa for ; Mon, 16 Nov 2015 15:12:24 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CWCQBpYUpWPIYELHldKAECgxCBQoJfg36kfgEBAQEBAQaLM4Utgn2BEIYKAgIBAQKBRk0BAQEBAQEHAQEBAUE/hDUBAQQnExwjEAgDGAklDwUlAwcaE4gtuyABAQgCASAZhXSFRYk5BZZIjR+cTYR7KjQBhQkBAQE Received: from ppp121-44-4-134.lns20.syd4.internode.on.net (HELO dastard) ([121.44.4.134]) by ipmail06.adl2.internode.on.net with ESMTP; 17 Nov 2015 09:42:22 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZySwg-0006RX-8b; Tue, 17 Nov 2015 10:12:22 +1100 Date: Tue, 17 Nov 2015 10:12:22 +1100 From: Dave Chinner To: Ross Zwisler Cc: linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 11/11] xfs: add support for DAX fsync/msync Message-ID: <20151116231222.GY19199@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 11/11] xfs: add support for DAX fsync/msync References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-12-git-send-email-ross.zwisler@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447459610-14259-12-git-send-email-ross.zwisler@linux.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1447715544 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24453 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Nov 13, 2015 at 05:06:50PM -0700, Ross Zwisler wrote: > To properly support the new DAX fsync/msync infrastructure filesystems > need to call dax_pfn_mkwrite() so that DAX can properly track when a user > write faults on a previously cleaned address. They also need to call > dax_fsync() in the filesystem fsync() path. This dax_fsync() call uses > addresses retrieved from get_block() so it needs to be ordered with > respect to truncate. This is accomplished by using the same locking that > was set up for DAX page faults. > > Signed-off-by: Ross Zwisler > --- > fs/xfs/xfs_file.c | 18 +++++++++++++----- > 1 file changed, 13 insertions(+), 5 deletions(-) > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 39743ef..2b490a1 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -209,7 +209,8 @@ xfs_file_fsync( > loff_t end, > int datasync) > { > - struct inode *inode = file->f_mapping->host; > + struct address_space *mapping = file->f_mapping; > + struct inode *inode = mapping->host; > struct xfs_inode *ip = XFS_I(inode); > struct xfs_mount *mp = ip->i_mount; > int error = 0; > @@ -218,7 +219,13 @@ xfs_file_fsync( > > trace_xfs_file_fsync(ip); > > - error = filemap_write_and_wait_range(inode->i_mapping, start, end); > + if (dax_mapping(mapping)) { > + xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED); > + dax_fsync(mapping, start, end); > + xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED); > + } > + > + error = filemap_write_and_wait_range(mapping, start, end); Ok, I don't understand a couple of things here. Firstly, if it's a DAX mapping, why are we still calling filemap_write_and_wait_range() after the dax_fsync() call that has already written back all the dirty cachelines? Secondly, exactly what is the XFS_MMAPLOCK_SHARED lock supposed to be doing here? I don't see where dax_fsync() has any callouts to get_block(), so the comment "needs to be ordered with respect to truncate" doesn't make any obvious sense. If we have a racing truncate removing entries from the radix tree, then thanks to the mapping tree lock we'll either find an entry we need to write back, or we won't find any entry at all, right? Lastly, this flushing really needs to be inside filemap_write_and_wait_range(), because we call the writeback code from many more places than just fsync to ensure ordering of various operations such that files are in known state before proceeding (e.g. hole punch). Cheers, Dave. -- Dave Chinner david@fromorbit.com From ross.zwisler@linux.intel.com Mon Nov 16 17:29:35 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2CF5F7F4E for ; Mon, 16 Nov 2015 17:29:35 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0D851304043 for ; Mon, 16 Nov 2015 15:29:31 -0800 (PST) X-ASG-Debug-ID: 1447716570-04cbb0605bc8cc0001-NocioJ Received: from mga11.intel.com ([192.55.52.93]) by cuda.sgi.com with ESMTP id D6YYgepJbHbblwqn for ; Mon, 16 Nov 2015 15:29:30 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.93 X-ASG-Whitelist: EmailCat (corporate) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP; 16 Nov 2015 15:29:29 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,304,1444719600"; d="scan'208";a="821681064" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.87]) by orsmga001.jf.intel.com with ESMTP; 16 Nov 2015 15:29:28 -0800 Date: Mon, 16 Nov 2015 16:29:27 -0700 From: Ross Zwisler To: Dave Chinner Cc: Jan Kara , Dan Williams , Andreas Dilger , Ross Zwisler , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Message-ID: <20151116232927.GA5582@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Mail-Followup-To: Ross Zwisler , Dave Chinner , Jan Kara , Dan Williams , Andreas Dilger , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> <20151116133714.GB3443@quack.suse.cz> <20151116140526.GA6733@quack.suse.cz> <20151116221412.GV19199@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151116221412.GV19199@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: UNKNOWN[192.55.52.93] X-Barracuda-Start-Time: 1447716570 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Nov 17, 2015 at 09:14:12AM +1100, Dave Chinner wrote: > On Mon, Nov 16, 2015 at 03:05:26PM +0100, Jan Kara wrote: > > On Mon 16-11-15 14:37:14, Jan Kara wrote: > > > On Fri 13-11-15 18:32:40, Dan Williams wrote: > > > > On Fri, Nov 13, 2015 at 4:43 PM, Andreas Dilger wrote: > > > > > On Nov 13, 2015, at 5:20 PM, Dan Williams wrote: > > > > >> > > > > >> On Fri, Nov 13, 2015 at 4:06 PM, Ross Zwisler > > > > >> wrote: > > > > >>> Currently the PMEM driver doesn't accept REQ_FLUSH or REQ_FUA bios. These > > > > >>> are sent down via blkdev_issue_flush() in response to a fsync() or msync() > > > > >>> and are used by filesystems to order their metadata, among other things. > > > > >>> > > > > >>> When we get an msync() or fsync() it is the responsibility of the DAX code > > > > >>> to flush all dirty pages to media. The PMEM driver then just has issue a > > > > >>> wmb_pmem() in response to the REQ_FLUSH to ensure that before we return all > > > > >>> the flushed data has been durably stored on the media. > > > > >>> > > > > >>> Signed-off-by: Ross Zwisler > > > > >> > > > > >> Hmm, I'm not seeing why we need this patch. If the actual flushing of > > > > >> the cache is done by the core why does the driver need support > > > > >> REQ_FLUSH? Especially since it's just a couple instructions. REQ_FUA > > > > >> only makes sense if individual writes can bypass the "drive" cache, > > > > >> but no I/O submitted to the driver proper is ever cached we always > > > > >> flush it through to media. > > > > > > > > > > If the upper level filesystem gets an error when submitting a flush > > > > > request, then it assumes the underlying hardware is broken and cannot > > > > > be as aggressive in IO submission, but instead has to wait for in-flight > > > > > IO to complete. > > > > > > > > Upper level filesystems won't get errors when the driver does not > > > > support flush. Those requests are ended cleanly in > > > > generic_make_request_checks(). Yes, the fs still needs to wait for > > > > outstanding I/O to complete but in the case of pmem all I/O is > > > > synchronous. There's never anything to await when flushing at the > > > > pmem driver level. > > > > > > > > > Since FUA/FLUSH is basically a no-op for pmem devices, > > > > > it doesn't make sense _not_ to support this functionality. > > > > > > > > Seems to be a nop either way. Given that DAX may lead to dirty data > > > > pending to the device in the cpu cache that a REQ_FLUSH request will > > > > not touch, its better to leave it all to the mm core to handle. I.e. > > > > it doesn't make sense to call the driver just for two instructions > > > > (sfence + pcommit) when the mm core is taking on the cache flushing. > > > > Either handle it all in the mm or the driver, not a mixture. > > > > > > So I think REQ_FLUSH requests *must* end up doing sfence + pcommit because > > > e.g. journal writes going through block layer or writes done through > > > dax_do_io() must be on permanent storage once REQ_FLUSH request finishes > > > and the way driver does IO doesn't guarantee this, does it? > > > > Hum, and looking into how dax_do_io() works and what drivers/nvdimm/pmem.c > > does, I'm indeed wrong because they both do wmb_pmem() after each write > > which seems to include sfence + pcommit. Sorry for confusion. > > Which I want to remove, because it makes DAX IO 3x slower than > buffered IO on ramdisk based testing. > > > But a question: Won't it be better to do sfence + pcommit only in response > > to REQ_FLUSH request and don't do it after each write? I'm not sure how > > expensive these instructions are but in theory it could be a performance > > win, couldn't it? For filesystems this is enough wrt persistency > > guarantees... > > I'm pretty sure it would be, because all of the overhead (and > therefore latency) I measured is in the cache flushing instructions. > But before we can remove the wmb_pmem() from dax_do_io(), we need > the underlying device to support REQ_FLUSH correctly... By "support REQ_FLUSH correctly" do you mean call wmb_pmem() as I do in my set? Or do you mean something that also involves cache flushing such as the "big hammer" that flushes everything or something like WBINVD? From david@fromorbit.com Mon Nov 16 17:42:52 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id BF6357F4E for ; Mon, 16 Nov 2015 17:42:52 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9E641304032 for ; Mon, 16 Nov 2015 15:42:52 -0800 (PST) X-ASG-Debug-ID: 1447717369-04cbb0605dc9a30001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id x5Qfq12CSUMG6xoJ for ; Mon, 16 Nov 2015 15:42:49 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2ApDwC6aEpWPIYELHldDoMtgQBChl2kfgEBAQEBAQaLM4Utgn2BEIYKAgIBAQKBRk0BAQEBAQEHAQEBAUE/hDUBAQQ6HDMIAxgJJQ8FJQMHGgESHogPuyoBCyEZhXSFRYREhHUFlkmIDoURjzSNGYQpUio0AYNAgUkBAQE Received: from ppp121-44-4-134.lns20.syd4.internode.on.net (HELO dastard) ([121.44.4.134]) by ipmail06.adl2.internode.on.net with ESMTP; 17 Nov 2015 10:12:47 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZyTQ6-0006Ur-A0; Tue, 17 Nov 2015 10:42:46 +1100 Date: Tue, 17 Nov 2015 10:42:46 +1100 From: Dave Chinner To: Ross Zwisler , Jan Kara , Dan Williams , Andreas Dilger , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Message-ID: <20151116234246.GZ19199@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> <20151116133714.GB3443@quack.suse.cz> <20151116140526.GA6733@quack.suse.cz> <20151116221412.GV19199@dastard> <20151116232927.GA5582@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151116232927.GA5582@linux.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1447717369 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24454 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Nov 16, 2015 at 04:29:27PM -0700, Ross Zwisler wrote: > On Tue, Nov 17, 2015 at 09:14:12AM +1100, Dave Chinner wrote: > > On Mon, Nov 16, 2015 at 03:05:26PM +0100, Jan Kara wrote: > > > On Mon 16-11-15 14:37:14, Jan Kara wrote: > > > > On Fri 13-11-15 18:32:40, Dan Williams wrote: > > > > > On Fri, Nov 13, 2015 at 4:43 PM, Andreas Dilger wrote: > > > > > > On Nov 13, 2015, at 5:20 PM, Dan Williams wrote: > > > > > >> > > > > > >> On Fri, Nov 13, 2015 at 4:06 PM, Ross Zwisler > > > > > >> wrote: > > > > > >>> Currently the PMEM driver doesn't accept REQ_FLUSH or REQ_FUA bios. These > > > > > >>> are sent down via blkdev_issue_flush() in response to a fsync() or msync() > > > > > >>> and are used by filesystems to order their metadata, among other things. > > > > > >>> > > > > > >>> When we get an msync() or fsync() it is the responsibility of the DAX code > > > > > >>> to flush all dirty pages to media. The PMEM driver then just has issue a > > > > > >>> wmb_pmem() in response to the REQ_FLUSH to ensure that before we return all > > > > > >>> the flushed data has been durably stored on the media. > > > > > >>> > > > > > >>> Signed-off-by: Ross Zwisler > > > > > >> > > > > > >> Hmm, I'm not seeing why we need this patch. If the actual flushing of > > > > > >> the cache is done by the core why does the driver need support > > > > > >> REQ_FLUSH? Especially since it's just a couple instructions. REQ_FUA > > > > > >> only makes sense if individual writes can bypass the "drive" cache, > > > > > >> but no I/O submitted to the driver proper is ever cached we always > > > > > >> flush it through to media. > > > > > > > > > > > > If the upper level filesystem gets an error when submitting a flush > > > > > > request, then it assumes the underlying hardware is broken and cannot > > > > > > be as aggressive in IO submission, but instead has to wait for in-flight > > > > > > IO to complete. > > > > > > > > > > Upper level filesystems won't get errors when the driver does not > > > > > support flush. Those requests are ended cleanly in > > > > > generic_make_request_checks(). Yes, the fs still needs to wait for > > > > > outstanding I/O to complete but in the case of pmem all I/O is > > > > > synchronous. There's never anything to await when flushing at the > > > > > pmem driver level. > > > > > > > > > > > Since FUA/FLUSH is basically a no-op for pmem devices, > > > > > > it doesn't make sense _not_ to support this functionality. > > > > > > > > > > Seems to be a nop either way. Given that DAX may lead to dirty data > > > > > pending to the device in the cpu cache that a REQ_FLUSH request will > > > > > not touch, its better to leave it all to the mm core to handle. I.e. > > > > > it doesn't make sense to call the driver just for two instructions > > > > > (sfence + pcommit) when the mm core is taking on the cache flushing. > > > > > Either handle it all in the mm or the driver, not a mixture. > > > > > > > > So I think REQ_FLUSH requests *must* end up doing sfence + pcommit because > > > > e.g. journal writes going through block layer or writes done through > > > > dax_do_io() must be on permanent storage once REQ_FLUSH request finishes > > > > and the way driver does IO doesn't guarantee this, does it? > > > > > > Hum, and looking into how dax_do_io() works and what drivers/nvdimm/pmem.c > > > does, I'm indeed wrong because they both do wmb_pmem() after each write > > > which seems to include sfence + pcommit. Sorry for confusion. > > > > Which I want to remove, because it makes DAX IO 3x slower than > > buffered IO on ramdisk based testing. > > > > > But a question: Won't it be better to do sfence + pcommit only in response > > > to REQ_FLUSH request and don't do it after each write? I'm not sure how > > > expensive these instructions are but in theory it could be a performance > > > win, couldn't it? For filesystems this is enough wrt persistency > > > guarantees... > > > > I'm pretty sure it would be, because all of the overhead (and > > therefore latency) I measured is in the cache flushing instructions. > > But before we can remove the wmb_pmem() from dax_do_io(), we need > > the underlying device to support REQ_FLUSH correctly... > > By "support REQ_FLUSH correctly" do you mean call wmb_pmem() as I do in my > set? Or do you mean something that also involves cache flushing such as the > "big hammer" that flushes everything or something like WBINVD? Either. Both solve the problem of defering the cache flush penalty to the context that needs it.. Cheers, Dave. -- Dave Chinner david@fromorbit.com From darrick.wong@oracle.com Mon Nov 16 17:51:50 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9F5BC7F4E for ; Mon, 16 Nov 2015 17:51:50 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8BDCA304039 for ; Mon, 16 Nov 2015 15:51:50 -0800 (PST) X-ASG-Debug-ID: 1447717908-04cbb0605cc9f30001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id OjaGxsxsnk8eQaph (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 16 Nov 2015 15:51:48 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tAGNpFr4009016 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 16 Nov 2015 23:51:16 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tAGNpDHv026944 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Mon, 16 Nov 2015 23:51:14 GMT Received: from abhmp0003.oracle.com (abhmp0003.oracle.com [141.146.116.9]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tAGNpDQq021777; Mon, 16 Nov 2015 23:51:13 GMT Received: from localhost (/10.145.178.207) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 16 Nov 2015 15:51:13 -0800 Date: Mon, 16 Nov 2015 15:51:11 -0800 From: "Darrick J. Wong" To: Dave Chinner Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [PATCH 01/12] test-scripts: test migration scripts Message-ID: <20151116235111.GE2224@birch.djwong.org> X-ASG-Orig-Subj: Re: [PATCH 01/12] test-scripts: test migration scripts References: <20151113213643.31124.80975.stgit@birch.djwong.org> <20151113213650.31124.16817.stgit@birch.djwong.org> <20151116205845.GK14311@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151116205845.GK14311@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447717908 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24455 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Tue, Nov 17, 2015 at 07:58:45AM +1100, Dave Chinner wrote: > On Fri, Nov 13, 2015 at 01:36:50PM -0800, Darrick J. Wong wrote: > > Add two scripts: "nextid" finds the next available test ID number in a > > group, and "mvtest" relocates a test, fixes the golden output, and > > moves the group entry for that test. > > > > Signed-off-by: Darrick J. Wong > > --- > > mvtest | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > nextid | 35 +++++++++++++++++++++++++++++++++++ > > These should be placed in the "tools" directory. > > > create mode 100755 mvtest > > create mode 100755 nextid > > > > > > diff --git a/mvtest b/mvtest > > new file mode 100755 > > index 0000000..b5406d1 > > --- /dev/null > > +++ b/mvtest > > @@ -0,0 +1,58 @@ > > +#!/bin/sh > > + > > +# Renumber a test > > + > > +if [ -z "$1" ] || [ "$1" = "--help" ]; then > > + echo "Usage: $0 path_to_test new_path_to_test" > > + exit 1 > > +fi > > + > > +src="$1" > > +dest="$2" > > + > > +die() { > > + echo "$@" > > + exit 1 > > +} > > + > > +nsort() { > > + sort -g < "$1" > "$2" > > +} > > + > > +append() { > > + out="$1" > > + shift > > + echo "$@" >> "${out}" > > +} > > + > > +test "${src}" != "${dest}" || die "Test \"${src}\" is the same as dest." > > +test -e "tests/${src}" || die "Test \"${src}\" does not exist." > > +test ! -e "tests/${dest}" || die "Test \"${src}\" already exists." > > + > > +sid="$(basename "${src}")" > > +did="$(basename "${dest}")" > > + > > +sgroup="$(basename "$(dirname "tests/${src}")")" > > +dgroup="$(basename "$(dirname "tests/${dest}")")" > > + > > +sgroupfile="tests/${sgroup}/group" > > +dgroupfile="tests/${sgroup}/group" > > + > > +$DBG git mv "tests/${src}" "tests/${dest}" > > $DBG? "DBG=echo ./mvtest foo bar" to see what it would have run, more or less. (I suppose I could getopt a --dry-run, but I could also just get rid of them.) > > .... > > +$DBG sed -e "/^${sid}.*$/d" -i "${sgroupfile}" > > +$DBG cp "${dgroupfile}" "${dgroupfile}.new" > > +$DBG append "${dgroupfile}.new" "${newgrpline}" > > +$DBG nsort "${dgroupfile}.new" "${dgroupfile}" > > What does this do to comments in the group file? Eats them. I don't know of a good way to sort just the uncommented lines in the file, short of writing a python script to do that. I guess it's not that hard; I've sort of needed one here and there over the years, but never wrote one, and $google doesn't immediately provide any such thing. > > ... > > > diff --git a/nextid b/nextid > > new file mode 100755 > > index 0000000..285b549 > > --- /dev/null > > +++ b/nextid > > @@ -0,0 +1,35 @@ > > +#!/bin/sh > > + > > +# Given a group name, find the next available test number. > > + > > +if [ -z "$1" ] || [ "$1" = "--help" ]; then > > + echo "Usage: $0 groupname[/start_looking_at_this_number]" > > + exit 1 > > +fi > > + > > +die() { > > + echo "$@" > > + exit 1 > > +} > > + > > +if [ "$(basename "$1")" != "$1" ]; then > > + group="$(dirname "$1")" > > + id="$(basename "$1")" > > +else > > + group="$1" > > + id=1 > > +fi > > +test -e "tests/${group}/group" || die "Unknown group \"${group}\"." > > + > > +while test "${id}" -lt 1000; do > > + name="$(printf "%.03d" "${id}")" > > + if [ ! -e "tests/${group}/${name}" ]; then > > + echo "${group}/${name}" > > + exit 0 > > + fi > > + id=$((id + 1)) > > +done > > + > > +echo "No free IDs less than ${id} in group \"${group}\"." > > So the "new" script does this differently, by reading the group > file and looking for the first non-contiguous ID in the file. It > doesn't need scan ID limits because EOF triggers that. Wouldn't it > be better to to factor the code out of the "new" script to find the > next id, and then have the new script call that? Sure! --D > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From ross.zwisler@linux.intel.com Mon Nov 16 17:57:35 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 3883D7F4E for ; Mon, 16 Nov 2015 17:57:35 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id CE64AAC002 for ; Mon, 16 Nov 2015 15:57:31 -0800 (PST) X-ASG-Debug-ID: 1447718250-04bdf07f0ab0240001-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id GZ3OmQ5n0m76EggZ for ; Mon, 16 Nov 2015 15:57:30 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga103.fm.intel.com with ESMTP; 16 Nov 2015 15:57:25 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,305,1444719600"; d="scan'208";a="601443893" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.87]) by FMSMGA003.fm.intel.com with ESMTP; 16 Nov 2015 15:57:26 -0800 Date: Mon, 16 Nov 2015 16:57:24 -0700 From: Ross Zwisler To: Dan Williams Cc: Ross Zwisler , Jan Kara , Andreas Dilger , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Message-ID: <20151116235724.GA10256@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Mail-Followup-To: Ross Zwisler , Dan Williams , Jan Kara , Andreas Dilger , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> <20151116133714.GB3443@quack.suse.cz> <20151116140526.GA6733@quack.suse.cz> <20151116194846.GB32203@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447718250 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24456 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Mon, Nov 16, 2015 at 12:34:55PM -0800, Dan Williams wrote: > On Mon, Nov 16, 2015 at 11:48 AM, Ross Zwisler > wrote: > > On Mon, Nov 16, 2015 at 09:28:59AM -0800, Dan Williams wrote: > >> On Mon, Nov 16, 2015 at 6:05 AM, Jan Kara wrote: > >> > On Mon 16-11-15 14:37:14, Jan Kara wrote: > [..] > > Is there any reason why this wouldn't work or wouldn't be a good idea? > > We don't have numbers to support the claim that pcommit is so > expensive as to need be deferred, especially if the upper layers are > already taking the hit on doing the flushes. > > REQ_FLUSH, means flush your volatile write cache. Currently all I/O > through the driver never hits a volatile cache so there's no need to > tell the block layer that we have a volatile write cache, especially > when you have the core mm taking responsibility for doing cache > maintenance for dax-mmap ranges. > > We also don't have numbers on if/when wbinvd is a more performant solution. > > tl;dr Now that we have a baseline implementation can we please use > data to make future arch decisions? Sure, fair enough. From darrick.wong@oracle.com Mon Nov 16 18:28:54 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 50DCA7F4E for ; Mon, 16 Nov 2015 18:28:54 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id C1997AC003 for ; Mon, 16 Nov 2015 16:28:50 -0800 (PST) X-ASG-Debug-ID: 1447720128-04cb6c0cd4a84a0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id enaqLZ2skBMoLRxm (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 16 Nov 2015 16:28:48 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tAH0SO1F013262 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 17 Nov 2015 00:28:25 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tAH0SOE5009092 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Tue, 17 Nov 2015 00:28:24 GMT Received: from abhmp0006.oracle.com (abhmp0006.oracle.com [141.146.116.12]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tAH0SNmO031634; Tue, 17 Nov 2015 00:28:24 GMT Received: from localhost (/10.145.178.207) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 16 Nov 2015 16:28:23 -0800 Date: Mon, 16 Nov 2015 16:28:22 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Cc: xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org Subject: Re: clone ioctl return values Message-ID: <20151117002822.GA32467@birch.djwong.org> X-ASG-Orig-Subj: Re: clone ioctl return values References: <20151116120431.GA2860@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151116120431.GA2860@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1447720128 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24457 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Mon, Nov 16, 2015 at 04:04:31AM -0800, Christoph Hellwig wrote: > Hi Darrick, > > your new generic/157 xfs test brings up an interesting issue: error > returns forthe various clone failure cases. It seems like this case > was written fo the XFS case which differs a lot from the error chosen > by btrfs and mostly followed by NFS. I'd say it might be a better idea > to follow the btrfs example as the btrfs ioctls have been in use for > a while. The only shortcoming I see in btrfs is that id doesn't > explicitly check for non-directory, non-regular file items as the > source. I have to admit I'm kinda surprised that it doesn't blow up, > given that NFS instantly did when I removed those checks. > > FYI, output from the test on btrfs below: > > > --- tests/generic/157.out 2015-11-14 07:56:31.000000000 +0000 > +++ /root/xfstests/results//generic/157.out.bad 2015-11-16 11:58:52.879078894 +0000 > @@ -2,24 +2,24 @@ > Format and mount > Create the original files > Try cross-device reflink > -XFS_IOC_CLONE_RANGE: Invalid cross-device link > +reflink: Invalid cross-device link Hmm, I think you're running an older version of xfsprogs for-next. The "reflink:" perror prefix was changed to the ioctl name (for all three ioctls) per the comment in: http://oss.sgi.com/archives/xfs/2015-09/msg00338.html > Try unaligned reflink > -XFS_IOC_CLONE_RANGE: Invalid argument > +reflink: Invalid argument > Try overlapping reflink > -XFS_IOC_CLONE_RANGE: Invalid argument > +reflink: Invalid argument > Try reflink past EOF > -XFS_IOC_CLONE_RANGE: Invalid argument > +reflink: Invalid argument > Try to reflink a dir > -XFS_IOC_CLONE_RANGE: Is a directory > +reflink: Is a directory > Try to reflink a device > -XFS_IOC_CLONE_RANGE: Invalid argument > +/mnt/test/test-157/dev1: No such device or address Huh. How did you get -ENODEV here? I ran this on 4.3 and got -EINVAL. > Try to reflink to a dir > -/mnt/test-157/dir1: Is a directory > +/mnt/test/test-157/dir1: Is a directory Drat, will fix. > Try to reflink to a device > -XFS_IOC_CLONE_RANGE: Operation not supported > +/mnt/test/test-157/dev1: No such device or address Same here as the other device case. > Try to reflink to a fifo > -XFS_IOC_CLONE_RANGE: Operation not supported > +reflink: Inappropriate ioctl for device Errrgh, the golden output of this test reflects the changes to the input checking in Anna/Peng's copy_file_range/clone_file_range patches. So, I guess the question is, should I reset the golden output to whatever btrfs spits out before that patchset, and we'll consider the alterations to be bugs/regressions/whatever that ought to be fixed in their patches? > Try to reflink an append-only file > -XFS_IOC_CLONE_RANGE: Bad file descriptor > +reflink: Invalid argument Same as above. --D > Reflink two files > Check scratch fs From chris@onthe.net.au Tue Nov 17 02:04:02 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 176457F37 for ; Tue, 17 Nov 2015 02:04:02 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 13798304039 for ; Tue, 17 Nov 2015 00:03:59 -0800 (PST) X-ASG-Debug-ID: 1447747434-04cb6c0cd1b60d0001-NocioJ Received: from smtp1.onthe.net.au (smtp1.onthe.net.au [203.22.196.249]) by cuda.sgi.com with ESMTP id anWxGO24WE75XuvS for ; Tue, 17 Nov 2015 00:03:55 -0800 (PST) X-Barracuda-Envelope-From: chris@onthe.net.au X-Barracuda-Apparent-Source-IP: 203.22.196.249 Received: from localhost (localhost [127.0.0.1]) by smtp1.onthe.net.au (Postfix) with ESMTP id 6D060617C3 for ; Tue, 17 Nov 2015 19:03:52 +1100 (EST) Received: from smtp1.onthe.net.au ([127.0.0.1]) by localhost (smtp1.onthe.net.au [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZXTKnyA8yGi7 for ; Tue, 17 Nov 2015 19:03:51 +1100 (EST) Received: from o1.private.otn.net.au (o1.private.onthe.net.au [10.200.63.41]) by smtp1.onthe.net.au (Postfix) with ESMTP id 7B619617C1 for ; Tue, 17 Nov 2015 19:03:33 +1100 (EST) Received: from hestia (pony.office.onthe.net.au [10.9.1.6]) by o1.private.otn.net.au (Postfix) with ESMTP id 760DEE122D for ; Tue, 17 Nov 2015 19:03:33 +1100 (AEDT) Received: by hestia (Postfix, from userid 1000) id 0ECBA580730; Tue, 17 Nov 2015 19:03:33 +1100 (AEDT) Date: Tue, 17 Nov 2015 19:03:33 +1100 From: Chris Dunlop To: xfs@oss.sgi.com Subject: Disk error, then endless loop Message-ID: <20151117080332.GA28936@onthe.net.au> X-ASG-Orig-Subj: Disk error, then endless loop MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: smtp1.onthe.net.au[203.22.196.249] X-Barracuda-Start-Time: 1447747435 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24468 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi, XFS error handling on linux 3.18.21 looks to be "suboptimal". I had an XFS disk start returning read errors, then disappear from the controller altogether (only to come back under a different /dev/sdXX name). XFS is now endlessly flooding these messages into kern.log (55,000 copies and counting...): [5358213.926049] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 [5358213.926141] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. More info below, but some questions: Is this a known issue, if so, has it been fixed, and if so, in which commit? I guess I'm going to have to hard boot the machine to get out of this, right? More info... The XFS the only thing on the gpt partitioned disk, on partition 1, with a log device on a partition of an SSD-backed md raid-1. The disk is: Device Model: WDC WD60EFRX-68MYMN1 User Capacity: 6,001,175,126,016 bytes [6.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical The XFS was formatted like: # mkfs.xfs -V mkfs.xfs version 3.2.1 # mkfs.xfs -l logdev=/dev/md8p5 -i size=2048 /dev/sdu1 meta-data=/dev/sdu1 isize=2048 agcount=6, agsize=268435455 blks = sectsz=4096 attr=2, projid32bit=1 = crc=0 finobt=0 data = bsize=4096 blocks=1465130385, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=0 log =/dev/md8p5 bsize=4096 blocks=409600, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 I tried to umount the filesystem but the umount is now hung and unkillable: # ps -ostat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 As previously mentioned, the disk has actually reappeared under a different /dev/sdXX name (it was sdu, now sdbh). Trying to mount the disk (read only) results in: # mkdir /mnt/xfs && mount -ologdev=/dev/md8p5,ro /dev/sdbh1 /mnt/xfs mount: /dev/sdbh1 already mounted or /mnt/xfs busy kern.log leading up to this event: [5358213.665887] mpt2sas0: log_info(0x31120436): originator(PL), code(0x12), sub_code(0x0436) [5358213.665939] mpt2sas0: log_info(0x31120436): originator(PL), code(0x12), sub_code(0x0436) [5358213.665990] mpt2sas0: log_info(0x31120436): originator(PL), code(0x12), sub_code(0x0436) [5358213.666042] mpt2sas0: log_info(0x31120436): originator(PL), code(0x12), sub_code(0x0436) [5358213.666138] sd 0:0:20:0: [sdu] [5358213.666165] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [5358213.666196] sd 0:0:20:0: [sdu] CDB: [5358213.666222] Write(16): 8a 00 00 00 00 00 2e 99 9b 00 00 00 02 98 00 00 [5358213.666295] blk_update_request: I/O error, dev sdu, sector 781818624 [5358213.666423] Buffer I/O error on dev sdu1, logical block 363305032, lost async page write [5358213.666480] sd 0:0:20:0: [sdu] [5358213.666504] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [5358213.666532] sd 0:0:20:0: [sdu] CDB: [5358213.666555] Write(16): 8a 00 00 00 00 00 2e 99 97 00 00 00 04 00 00 00 [5358213.666626] blk_update_request: I/O error, dev sdu, sector 781817600 [5358213.666661] sd 0:0:20:0: [sdu] [5358213.666684] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [5358213.666713] sd 0:0:20:0: [sdu] CDB: [5358213.666736] Write(16): 8a 00 00 00 00 00 2e 99 93 00 00 00 04 00 00 00 [5358213.666808] blk_update_request: I/O error, dev sdu, sector 781816576 [5358213.666842] sd 0:0:20:0: [sdu] [5358213.666865] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [5358213.666893] sd 0:0:20:0: [sdu] CDB: [5358213.666917] Read(16): 88 00 00 00 00 01 27 9b 51 10 00 00 00 08 00 00 [5358213.666988] blk_update_request: I/O error, dev sdu, sector 4959457552 [5358213.667025] sd 0:0:20:0: [sdu] [5358213.667048] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [5358213.667077] sd 0:0:20:0: [sdu] CDB: [5358213.667100] Write(16): 8a 00 00 00 00 01 2c 40 b8 a8 00 00 01 78 00 00 [5358213.667171] blk_update_request: I/O error, dev sdu, sector 5037406376 [5358213.667206] sd 0:0:20:0: [sdu] [5358213.667229] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [5358213.667257] sd 0:0:20:0: [sdu] CDB: [5358213.667281] Write(16): 8a 00 00 00 00 01 2c 40 b4 a8 00 00 04 00 00 00 [5358213.667351] blk_update_request: I/O error, dev sdu, sector 5037405352 [5358213.667385] blk_update_request: I/O error, dev sdu, sector 0 [5358213.667419] blk_update_request: I/O error, dev sdu, sector 0 [5358213.667452] sd 0:0:20:0: [sdu] [5358213.667475] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [5358213.667504] sd 0:0:20:0: [sdu] CDB: [5358213.667527] Write(16): 8a 00 00 00 00 01 27 9b 50 b0 00 00 00 60 00 00 [5358213.667598] blk_update_request: I/O error, dev sdu, sector 4959457456 [5358213.667628] Buffer I/O error on dev sdu1, logical block 619931926, lost async page write [5358213.667678] Buffer I/O error on dev sdu1, logical block 619931927, lost async page write [5358213.667727] Buffer I/O error on dev sdu1, logical block 619931928, lost async page write [5358213.667774] Buffer I/O error on dev sdu1, logical block 619931929, lost async page write [5358213.667821] Buffer I/O error on dev sdu1, logical block 619931930, lost async page write [5358213.667868] Buffer I/O error on dev sdu1, logical block 619931931, lost async page write [5358213.667915] Buffer I/O error on dev sdu1, logical block 619931932, lost async page write [5358213.667962] Buffer I/O error on dev sdu1, logical block 619931933, lost async page write [5358213.668010] Buffer I/O error on dev sdu1, logical block 619931934, lost async page write [5358213.668065] sd 0:0:20:0: [sdu] [5358213.668088] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [5358213.668118] sd 0:0:20:0: [sdu] CDB: [5358213.668141] Write(16): 8a 00 00 00 00 00 2e 99 91 98 00 00 01 68 00 00 << above 4 errors repeat a number of times, then >>> [5358213.672847] sd 0:0:20:0: [sdu] [5358213.672870] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [5358213.672898] sd 0:0:20:0: [sdu] CDB: [5358213.672922] Write(16): 8a 00 00 00 00 00 ad 40 60 38 00 00 04 00 00 00 [5358213.673083] XFS (sdu1): metadata I/O error: block 0x817f21d8 ("xfs_trans_read_buf_map") error 5 numblks 8 [5358213.673086] XFS (sdu1): metadata I/O error: block 0x183698f78 ("xfs_trans_read_buf_map") error 5 numblks 16 [5358213.673093] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. [5358213.673225] sd 0:0:20:0: [sdu] [5358213.673226] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [5358213.673227] sd 0:0:20:0: [sdu] CDB: [5358213.673233] Write(16): 8a 00 00 00 00 01 ab b3 5a c8 00 00 04 00 00 00 [5358213.678590] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 [5358213.678686] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. [5358213.679799] XFS (sdu1): metadata I/O error: block 0x28 ("xfs_buf_iodone_callbacks") error 5 numblks 8 [5358213.725951] XFS (sdu1): Detected failing async write on buffer block 0x805d4cd8. Retrying async write. [5358213.725951] [5358213.726069] XFS (sdu1): Detected failing async write on buffer block 0x20d390918. Retrying async write. [5358213.726069] [5358213.726181] XFS (sdu1): Detected failing async write on buffer block 0x88a017f0. Retrying async write. [5358213.726181] [5358213.726292] XFS (sdu1): Detected failing async write on buffer block 0x80d04890. Retrying async write. [5358213.726292] [5358213.726428] XFS (sdu1): Detected failing async write on buffer block 0x85bd33d8. Retrying async write. [5358213.726428] [5358213.726539] XFS (sdu1): Detected failing async write on buffer block 0x80ca6110. Retrying async write. [5358213.726539] [5358213.726650] XFS (sdu1): Detected failing async write on buffer block 0x857f1bb8. Retrying async write. [5358213.726650] [5358213.726762] XFS (sdu1): Detected failing async write on buffer block 0x88a017e0. Retrying async write. [5358213.726762] [5358213.726873] XFS (sdu1): Detected failing async write on buffer block 0x804f1c10. Retrying async write. [5358213.726873] [5358213.726984] XFS (sdu1): Detected failing async write on buffer block 0x859381b8. Retrying async write. [5358213.726984] [5358213.727126] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 [5358213.727212] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. [5358213.775880] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 [5358213.775972] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. [5358213.825966] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 [5358213.826061] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. [5358213.876050] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 [5358213.876142] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. [5358213.926049] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 [5358213.926141] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. ...and the "metadata" and "xfs_imap_to_bp" messages continue to flood into kern.log (120,000 and counting...) Cheers, Chris From BATV+6e1edf2bac5570895f63+4468+infradead.org+hch@bombadil.srs.infradead.org Tue Nov 17 04:54:42 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9B9467F37 for ; Tue, 17 Nov 2015 04:54:42 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 29D6EAC002 for ; Tue, 17 Nov 2015 02:54:38 -0800 (PST) X-ASG-Debug-ID: 1447757673-04cbb0605dde2c0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id aoKnDlRpXyo67PF5 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 17 Nov 2015 02:54:34 -0800 (PST) X-Barracuda-Envelope-From: BATV+6e1edf2bac5570895f63+4468+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZyduD-0000Nf-Jy; Tue, 17 Nov 2015 10:54:33 +0000 Date: Tue, 17 Nov 2015 02:54:33 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Christoph Hellwig , xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org Subject: Re: clone ioctl return values Message-ID: <20151117105433.GA18093@infradead.org> X-ASG-Orig-Subj: Re: clone ioctl return values References: <20151116120431.GA2860@infradead.org> <20151117002822.GA32467@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117002822.GA32467@birch.djwong.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447757674 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24471 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Mon, Nov 16, 2015 at 04:28:22PM -0800, Darrick J. Wong wrote: > > Try to reflink a device > > -XFS_IOC_CLONE_RANGE: Invalid argument > > +/mnt/test/test-157/dev1: No such device or address > > Huh. How did you get -ENODEV here? I ran this on 4.3 and got -EINVAL. This is current 4.4-rc. The error seems accidental I think. > Errrgh, the golden output of this test reflects the changes to the input > checking in Anna/Peng's copy_file_range/clone_file_range patches. > > So, I guess the question is, should I reset the golden output to whatever > btrfs spits out before that patchset, and we'll consider the alterations > to be bugs/regressions/whatever that ought to be fixed in their patches? Some bits in btrfs don't seem kosher. But it would be good to explicitly send patches for btrfs to adopt to what might make more sense, and then follow it in the other implementations. From bfoster@redhat.com Tue Nov 17 06:41:56 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2BF8A7F37 for ; Tue, 17 Nov 2015 06:41:56 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1ACBB8F8035 for ; Tue, 17 Nov 2015 04:41:52 -0800 (PST) X-ASG-Debug-ID: 1447764110-04cbb0605ee06c0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 9sx4lClpV9dMP3xv (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 17 Nov 2015 04:41:51 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id B87A0263D; Tue, 17 Nov 2015 12:41:50 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-36.bos.redhat.com [10.18.41.36]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAHCfnqL012750; Tue, 17 Nov 2015 07:41:50 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id DF522120059; Tue, 17 Nov 2015 07:41:48 -0500 (EST) Date: Tue, 17 Nov 2015 07:41:48 -0500 From: Brian Foster To: Chris Dunlop Cc: xfs@oss.sgi.com Subject: Re: Disk error, then endless loop Message-ID: <20151117124148.GA20118@bfoster.bfoster> X-ASG-Orig-Subj: Re: Disk error, then endless loop References: <20151117080332.GA28936@onthe.net.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117080332.GA28936@onthe.net.au> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447764111 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Nov 17, 2015 at 07:03:33PM +1100, Chris Dunlop wrote: > Hi, > > XFS error handling on linux 3.18.21 looks to be "suboptimal". > > I had an XFS disk start returning read errors, then disappear from the > controller altogether (only to come back under a different /dev/sdXX name). > XFS is now endlessly flooding these messages into kern.log (55,000 copies > and counting...): > Note that disks returning errors and/or dropping on and offline is outside the realm of the filesystem. There isn't much the fs can do in that case. > [5358213.926049] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 > [5358213.926141] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. > > More info below, but some questions: > > Is this a known issue, if so, has it been fixed, and if so, in which commit? > This is expected and the most likely scenario is that the filesystem eventually shuts itself down to avoid further damage. At this point, most operations will return -EIO (-5) back to the user. > I guess I'm going to have to hard boot the machine to get out of this, > right? > Normally you should be able to unmount a filesystem that has shut down... > More info... > > The XFS the only thing on the gpt partitioned disk, on partition 1, with a > log device on a partition of an SSD-backed md raid-1. > > The disk is: > > Device Model: WDC WD60EFRX-68MYMN1 > User Capacity: 6,001,175,126,016 bytes [6.00 TB] > Sector Sizes: 512 bytes logical, 4096 bytes physical > > The XFS was formatted like: > > # mkfs.xfs -V > mkfs.xfs version 3.2.1 > # mkfs.xfs -l logdev=/dev/md8p5 -i size=2048 /dev/sdu1 > meta-data=/dev/sdu1 isize=2048 agcount=6, agsize=268435455 blks > = sectsz=4096 attr=2, projid32bit=1 > = crc=0 finobt=0 > data = bsize=4096 blocks=1465130385, imaxpct=5 > = sunit=0 swidth=0 blks > naming =version 2 bsize=4096 ascii-ci=0 ftype=0 > log =/dev/md8p5 bsize=4096 blocks=409600, version=2 > = sectsz=512 sunit=0 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > > I tried to umount the filesystem but the umount is now hung and unkillable: > > # ps -ostat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount > STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD > D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 > ... but it appears you still have something pending in the AIL which is holding everything up. The most likely case is an EFI/EFD item hanging around from an extent free operation, as this was a known issue, particularly on fs shutdowns. Fixes for this went into the v4.3 kernel. Note that this won't address whatever is wrong with the disk in the first place, just (hopefully) the ability to unmount when it ultimately fails. Does the umount process actually appear to be doing anything? E.g., are you seeing noticeable CPU load or I/O errors continue to the logs, or has everything pretty much locked up? You could also enable tracepoints (trace-cmd start -e "xfs:*"; cat /sys/kernel/debug/tracing/trace_pipe) to get a quick idea of what's going on. > As previously mentioned, the disk has actually reappeared under a different > /dev/sdXX name (it was sdu, now sdbh). Trying to mount the disk (read only) > results in: > > # mkdir /mnt/xfs && mount -ologdev=/dev/md8p5,ro /dev/sdbh1 /mnt/xfs > mount: /dev/sdbh1 already mounted or /mnt/xfs busy > Probably due to either a uuid check or blocking on access to the external log device. You'll probably need to clean up the stale mount before this will work. As it is, something is clearly wrong with the drive. I can't really interpret the I/O errors and whatnot (linux-scsi?), but you probably want to look into health assessment tools (e.g., smart) to get an idea of what's wrong and/or replace the device and restore from backups (or perhaps heal via the ceph cluster, in your case). Brian > kern.log leading up to this event: > > [5358213.665887] mpt2sas0: log_info(0x31120436): originator(PL), code(0x12), sub_code(0x0436) > [5358213.665939] mpt2sas0: log_info(0x31120436): originator(PL), code(0x12), sub_code(0x0436) > [5358213.665990] mpt2sas0: log_info(0x31120436): originator(PL), code(0x12), sub_code(0x0436) > [5358213.666042] mpt2sas0: log_info(0x31120436): originator(PL), code(0x12), sub_code(0x0436) > [5358213.666138] sd 0:0:20:0: [sdu] > [5358213.666165] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK > [5358213.666196] sd 0:0:20:0: [sdu] CDB: > [5358213.666222] Write(16): 8a 00 00 00 00 00 2e 99 9b 00 00 00 02 98 00 00 > [5358213.666295] blk_update_request: I/O error, dev sdu, sector 781818624 > [5358213.666423] Buffer I/O error on dev sdu1, logical block 363305032, lost async page write > [5358213.666480] sd 0:0:20:0: [sdu] > [5358213.666504] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK > [5358213.666532] sd 0:0:20:0: [sdu] CDB: > [5358213.666555] Write(16): 8a 00 00 00 00 00 2e 99 97 00 00 00 04 00 00 00 > [5358213.666626] blk_update_request: I/O error, dev sdu, sector 781817600 > [5358213.666661] sd 0:0:20:0: [sdu] > [5358213.666684] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK > [5358213.666713] sd 0:0:20:0: [sdu] CDB: > [5358213.666736] Write(16): 8a 00 00 00 00 00 2e 99 93 00 00 00 04 00 00 00 > [5358213.666808] blk_update_request: I/O error, dev sdu, sector 781816576 > [5358213.666842] sd 0:0:20:0: [sdu] > [5358213.666865] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK > [5358213.666893] sd 0:0:20:0: [sdu] CDB: > [5358213.666917] Read(16): 88 00 00 00 00 01 27 9b 51 10 00 00 00 08 00 00 > [5358213.666988] blk_update_request: I/O error, dev sdu, sector 4959457552 > [5358213.667025] sd 0:0:20:0: [sdu] > [5358213.667048] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK > [5358213.667077] sd 0:0:20:0: [sdu] CDB: > [5358213.667100] Write(16): 8a 00 00 00 00 01 2c 40 b8 a8 00 00 01 78 00 00 > [5358213.667171] blk_update_request: I/O error, dev sdu, sector 5037406376 > [5358213.667206] sd 0:0:20:0: [sdu] > [5358213.667229] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK > [5358213.667257] sd 0:0:20:0: [sdu] CDB: > [5358213.667281] Write(16): 8a 00 00 00 00 01 2c 40 b4 a8 00 00 04 00 00 00 > [5358213.667351] blk_update_request: I/O error, dev sdu, sector 5037405352 > [5358213.667385] blk_update_request: I/O error, dev sdu, sector 0 > [5358213.667419] blk_update_request: I/O error, dev sdu, sector 0 > [5358213.667452] sd 0:0:20:0: [sdu] > [5358213.667475] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK > [5358213.667504] sd 0:0:20:0: [sdu] CDB: > [5358213.667527] Write(16): 8a 00 00 00 00 01 27 9b 50 b0 00 00 00 60 00 00 > [5358213.667598] blk_update_request: I/O error, dev sdu, sector 4959457456 > [5358213.667628] Buffer I/O error on dev sdu1, logical block 619931926, lost async page write > [5358213.667678] Buffer I/O error on dev sdu1, logical block 619931927, lost async page write > [5358213.667727] Buffer I/O error on dev sdu1, logical block 619931928, lost async page write > [5358213.667774] Buffer I/O error on dev sdu1, logical block 619931929, lost async page write > [5358213.667821] Buffer I/O error on dev sdu1, logical block 619931930, lost async page write > [5358213.667868] Buffer I/O error on dev sdu1, logical block 619931931, lost async page write > [5358213.667915] Buffer I/O error on dev sdu1, logical block 619931932, lost async page write > [5358213.667962] Buffer I/O error on dev sdu1, logical block 619931933, lost async page write > [5358213.668010] Buffer I/O error on dev sdu1, logical block 619931934, lost async page write > [5358213.668065] sd 0:0:20:0: [sdu] > [5358213.668088] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK > [5358213.668118] sd 0:0:20:0: [sdu] CDB: > [5358213.668141] Write(16): 8a 00 00 00 00 00 2e 99 91 98 00 00 01 68 00 00 > << above 4 errors repeat a number of times, then >>> > [5358213.672847] sd 0:0:20:0: [sdu] > [5358213.672870] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK > [5358213.672898] sd 0:0:20:0: [sdu] CDB: > [5358213.672922] Write(16): 8a 00 00 00 00 00 ad 40 60 38 00 00 04 00 00 00 > [5358213.673083] XFS (sdu1): metadata I/O error: block 0x817f21d8 ("xfs_trans_read_buf_map") error 5 numblks 8 > [5358213.673086] XFS (sdu1): metadata I/O error: block 0x183698f78 ("xfs_trans_read_buf_map") error 5 numblks 16 > [5358213.673093] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. > [5358213.673225] sd 0:0:20:0: [sdu] > [5358213.673226] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK > [5358213.673227] sd 0:0:20:0: [sdu] CDB: > [5358213.673233] Write(16): 8a 00 00 00 00 01 ab b3 5a c8 00 00 04 00 00 00 > [5358213.678590] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 > [5358213.678686] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. > [5358213.679799] XFS (sdu1): metadata I/O error: block 0x28 ("xfs_buf_iodone_callbacks") error 5 numblks 8 > [5358213.725951] XFS (sdu1): Detected failing async write on buffer block 0x805d4cd8. Retrying async write. > [5358213.725951] > [5358213.726069] XFS (sdu1): Detected failing async write on buffer block 0x20d390918. Retrying async write. > [5358213.726069] > [5358213.726181] XFS (sdu1): Detected failing async write on buffer block 0x88a017f0. Retrying async write. > [5358213.726181] > [5358213.726292] XFS (sdu1): Detected failing async write on buffer block 0x80d04890. Retrying async write. > [5358213.726292] > [5358213.726428] XFS (sdu1): Detected failing async write on buffer block 0x85bd33d8. Retrying async write. > [5358213.726428] > [5358213.726539] XFS (sdu1): Detected failing async write on buffer block 0x80ca6110. Retrying async write. > [5358213.726539] > [5358213.726650] XFS (sdu1): Detected failing async write on buffer block 0x857f1bb8. Retrying async write. > [5358213.726650] > [5358213.726762] XFS (sdu1): Detected failing async write on buffer block 0x88a017e0. Retrying async write. > [5358213.726762] > [5358213.726873] XFS (sdu1): Detected failing async write on buffer block 0x804f1c10. Retrying async write. > [5358213.726873] > [5358213.726984] XFS (sdu1): Detected failing async write on buffer block 0x859381b8. Retrying async write. > [5358213.726984] > [5358213.727126] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 > [5358213.727212] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. > [5358213.775880] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 > [5358213.775972] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. > [5358213.825966] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 > [5358213.826061] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. > [5358213.876050] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 > [5358213.876142] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. > [5358213.926049] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 > [5358213.926141] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. > > ...and the "metadata" and "xfs_imap_to_bp" messages continue to flood into > kern.log (120,000 and counting...) > > > Cheers, > > Chris > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From avi@cloudius-systems.com Tue Nov 17 06:52:25 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id ECCEF7F37 for ; Tue, 17 Nov 2015 06:52:24 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id AE17E8F8040 for ; Tue, 17 Nov 2015 04:52:24 -0800 (PST) X-ASG-Debug-ID: 1447764742-04bdf07f08d18f0001-NocioJ Received: from mail-wm0-f47.google.com (mail-wm0-f47.google.com [74.125.82.47]) by cuda.sgi.com with ESMTP id X0S0TW1ShWEf7n7I (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 17 Nov 2015 04:52:23 -0800 (PST) X-Barracuda-Envelope-From: avi@cloudius-systems.com X-Barracuda-Apparent-Source-IP: 74.125.82.47 Received: by wmec201 with SMTP id c201so225855374wme.0 for ; Tue, 17 Nov 2015 04:52:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=scylladb-com.20150623.gappssmtp.com; s=20150623; h=subject:to:references:cc:from:message-id:date:user-agent :mime-version:in-reply-to:content-type:content-transfer-encoding; bh=0vGFpZVSDKXZQ1d+UKUtZyKsRkM78LSxkrJyYPG7n0E=; b=i67y0J95OTvrXuy4ToWzxDaoTeLzY8Y/Selg6XUJUlQnToj5NchAJ/6KHwWDm5xv9U IT9I+Cs1X1BU9iWAZogL90ggykgOUsvkruPdN9d87xc1nKUh0f/Lhv6x1SImoMcG5GBF h4ZPHpIrQ+Kt4m+ux6Ttrg/ZiE68Xe0+9JEgTg63/Gc7+SW6UZaYI3YDMZjOD52UKZVx ZNmo8zIolyT0zSL4gZAcCcJ+1Nu+AzAjDjbv4KECOZUhU9OekfgXh1zyUcH+lM1GVwyA BkLoGvNArUaMCUaLydQBx0WVsdma/R1hGKgRxIM0/yqJ+Y52xzhJ9DIKWH2YKenrF7D+ qaHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-type :content-transfer-encoding; bh=0vGFpZVSDKXZQ1d+UKUtZyKsRkM78LSxkrJyYPG7n0E=; b=QPK6cmzuH2iZ3xaCoi4B2+HRhCoB9pXQV1pjKsWT5vAxgmg2xvWYlN2K2xAEXyBjW1 K/A5MZ0hipZuVmlfWSrU0mfBwTMgQwZAJtbiTjfBN7zGJSCNNyZcwgrGBP4pY/UEO02X KdhW2obK6tJJ5wJ7sx4dCIY9HDqKRN+ng4pXXhL6Ss3MOt1F/RCXjwO48amenjP7XUFT k74VGqaCOV/bJWA5TcJS7d8jT1XDBugERsjFPIO59wr3kfcAgoE1mb+U+Y5G7ZpwANKM uhAvKj4yNulm78qqzrAQmCn50VXW+2mGy02S5KIXfSwCPUbHeKwsI/0IQsezkkaCdidg 29HQ== X-Gm-Message-State: ALoCoQmxwtFLIDTsR8yCiXFDMCUzecGcU+U9Dnovcox8gUCVw0OYf8FNNUJrSWUeeAn9jE3j1sbh X-Received: by 10.28.216.72 with SMTP id p69mr2717120wmg.14.1447764741914; Tue, 17 Nov 2015 04:52:21 -0800 (PST) Received: from avi.cloudius-systems.com ([37.142.229.250]) by smtp.googlemail.com with ESMTPSA id lv4sm39791149wjb.43.2015.11.17.04.52.20 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 17 Nov 2015 04:52:20 -0800 (PST) Subject: Re: AIO read returns negative number for bytes read To: Jeff Moyer X-ASG-Orig-Subj: Re: AIO read returns negative number for bytes read References: <564883BD.8070607@scylladb.com> Cc: xfs@oss.sgi.com, linux-aio@kvack.org, Steven Whitehouse , Jan Kara , linux-fsdevel@vger.kernel.org From: Avi Kivity Message-ID: <564B2303.7000902@scylladb.com> Date: Tue, 17 Nov 2015 14:52:19 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail-wm0-f47.google.com[74.125.82.47] X-Barracuda-Start-Time: 1447764742 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-ASG-Whitelist: Body =?UTF-8?B?aHR0cDovL21hcmNcLmluZm8vXD8=?= X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 11/16/2015 09:27 PM, Jeff Moyer wrote: > Hi Avi, > > Avi Kivity writes: > >> Due to a bug in my program, I initiated a read beyond >> eof. Specifically, the file size is 13002 bytes and the read offset is >> 13312 (0x3400). >> >> I would expect such a read to return 0 bytes read, but io_getevents >> returns -310, which is suspiciously equal to (13002 - 13312). >> >> I attach a reproducer. >> >> 4.2.5-201.fc22.x86_64 >> >> Are my expectations incorrect, or is this a bug in aio or xfs? > Your expectations are correct. The bug was introduced by commit > 9fe55eea7e4b4 (Fix race when checking i_size on direct i/o read). I've > CC'd the patch author and linux-fsdevel. I'm not sure what the right > fix is, given that the size checks were removed from the vfs to fix some > race condition. Unfortunately, the commit message doesn't really do a > good job of explaining the race. In order to save others time, here is > a good explanation of the problem that commit is meant to fix, along > with a reproducer: > http://marc.info/?l=linux-fsdevel&m=138641356614458&w=2 > > Thanks for the great bug report, and sorry I have no solution to > proffer. > Thanks. I will await a fix with interest. From prvs=8763e27c61=clm@fb.com Tue Nov 17 07:58:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id F19D37F37 for ; Tue, 17 Nov 2015 07:58:32 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8FC35AC002 for ; Tue, 17 Nov 2015 05:58:29 -0800 (PST) X-ASG-Debug-ID: 1447768704-04bdf07f09d38e0001-NocioJ Received: from mx0b-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by cuda.sgi.com with ESMTP id No66PCnHDiWBdj7S (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 17 Nov 2015 05:58:25 -0800 (PST) X-Barracuda-Envelope-From: prvs=8763e27c61=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.153.30 X-ASG-Whitelist: EmailCat (corporate) Received: from pps.filterd (m0001303.ppops.net [127.0.0.1]) by m0001303.ppops.net (8.15.0.59/8.15.0.59) with SMTP id tAHDvoZF023235; Tue, 17 Nov 2015 05:57:57 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=facebook; bh=8+6a6qF+RUpjggo7H43w9pWxnG5mJzmrXeB3F20gtgU=; b=mcCKzMCAWU8kBSb7Do+FhnMYRmYem4ZufI2/5jz0PW0UUQOofX3zLzDSSntFBumZrdef cW2o7JQG43/gC8N7tV/QbyzZTvVApWBNiwCIo62lGaAGwxnBuv6FVEVZ8Sg8gUfnjI3y jS9vAimImcsHhBPSvIhXW85dmYcsbmUSmDA= Received: from mail.thefacebook.com ([199.201.64.23]) by m0001303.ppops.net with ESMTP id 1y7xx219gf-4 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Tue, 17 Nov 2015 05:57:56 -0800 Received: from localhost (192.168.52.123) by mail.thefacebook.com (192.168.16.19) with Microsoft SMTP Server (TLS) id 14.3.248.2; Tue, 17 Nov 2015 05:57:47 -0800 Date: Tue, 17 Nov 2015 08:57:45 -0500 From: Chris Mason To: Christoph Hellwig CC: "Darrick J. Wong" , , Subject: Re: clone ioctl return values Message-ID: <20151117135745.GF17545@ret.masoncoding.com> X-ASG-Orig-Subj: Re: clone ioctl return values Mail-Followup-To: Chris Mason , Christoph Hellwig , "Darrick J. Wong" , xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org References: <20151116120431.GA2860@infradead.org> <20151117002822.GA32467@birch.djwong.org> <20151117105433.GA18093@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20151117105433.GA18093@infradead.org> User-Agent: Mutt/1.5.23.1 (2014-03-12) X-Originating-IP: [192.168.52.123] X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2015-11-17_08:,, signatures=0 X-Barracuda-Connect: mx0b-00082601.pphosted.com[67.231.153.30] X-Barracuda-Start-Time: 1447768705 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Nov 17, 2015 at 02:54:33AM -0800, Christoph Hellwig wrote: > On Mon, Nov 16, 2015 at 04:28:22PM -0800, Darrick J. Wong wrote: > > > Try to reflink a device > > > -XFS_IOC_CLONE_RANGE: Invalid argument > > > +/mnt/test/test-157/dev1: No such device or address > > > > Huh. How did you get -ENODEV here? I ran this on 4.3 and got -EINVAL. > > This is current 4.4-rc. The error seems accidental I think. > > > Errrgh, the golden output of this test reflects the changes to the input > > checking in Anna/Peng's copy_file_range/clone_file_range patches. > > > > So, I guess the question is, should I reset the golden output to whatever > > btrfs spits out before that patchset, and we'll consider the alterations > > to be bugs/regressions/whatever that ought to be fixed in their patches? > > Some bits in btrfs don't seem kosher. But it would be good to > explicitly send patches for btrfs to adopt to what might make more > sense, and then follow it in the other implementations. Btrfs does check for directories, but we should really be checking for regular files too. In the end, we only copy extents that would correspond with regular files, so we're sneaking by. -chris From BATV+6e1edf2bac5570895f63+4468+infradead.org+hch@bombadil.srs.infradead.org Tue Nov 17 09:12:34 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D5ACB7F37 for ; Tue, 17 Nov 2015 09:12:34 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id C685F8F8035 for ; Tue, 17 Nov 2015 07:12:31 -0800 (PST) X-ASG-Debug-ID: 1447773147-04cbb0605ce4a70001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id 0TK1Y6Uex0ZAuWgU (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 17 Nov 2015 07:12:27 -0800 (PST) X-Barracuda-Envelope-From: BATV+6e1edf2bac5570895f63+4468+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zyhvm-00064r-Sf; Tue, 17 Nov 2015 15:12:26 +0000 Date: Tue, 17 Nov 2015 07:12:26 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org Subject: Re: clone ioctl return values Message-ID: <20151117151226.GA12860@infradead.org> X-ASG-Orig-Subj: Re: clone ioctl return values References: <20151116120431.GA2860@infradead.org> <20151117002822.GA32467@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117002822.GA32467@birch.djwong.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447773147 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24475 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Mon, Nov 16, 2015 at 04:28:22PM -0800, Darrick J. Wong wrote: > > -XFS_IOC_CLONE_RANGE: Invalid argument > > +reflink: Invalid argument > > Try reflink past EOF > > -XFS_IOC_CLONE_RANGE: Invalid argument > > +reflink: Invalid argument > > Try to reflink a dir > > -XFS_IOC_CLONE_RANGE: Is a directory > > +reflink: Is a directory > > > Try to reflink a device > > -XFS_IOC_CLONE_RANGE: Invalid argument > > +/mnt/test/test-157/dev1: No such device or address > > Huh. How did you get -ENODEV here? I ran this on 4.3 and got -EINVAL. Turns out this is because my system doesn't have the ramdisk driver built into the kernel, so opening your block device with major 8, minor 0 already fails. Might be better to create a char device with major 1, minor 3 (dev null) as that should always be present. From BATV+6e1edf2bac5570895f63+4468+infradead.org+hch@bombadil.srs.infradead.org Tue Nov 17 09:23:02 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CD6E77F37 for ; Tue, 17 Nov 2015 09:23:02 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9F58E304032 for ; Tue, 17 Nov 2015 07:22:59 -0800 (PST) X-ASG-Debug-ID: 1447773773-04bdf07f0ad5ae0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id weXGLmBBNcU5YsPz (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 17 Nov 2015 07:22:54 -0800 (PST) X-Barracuda-Envelope-From: BATV+6e1edf2bac5570895f63+4468+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zyi5s-0001Xq-1F; Tue, 17 Nov 2015 15:22:52 +0000 Date: Tue, 17 Nov 2015 07:22:52 -0800 From: Christoph Hellwig To: Chris Mason , Christoph Hellwig , "Darrick J. Wong" , xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org Subject: Re: clone ioctl return values Message-ID: <20151117152251.GA5392@infradead.org> X-ASG-Orig-Subj: Re: clone ioctl return values References: <20151116120431.GA2860@infradead.org> <20151117002822.GA32467@birch.djwong.org> <20151117105433.GA18093@infradead.org> <20151117135745.GF17545@ret.masoncoding.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117135745.GF17545@ret.masoncoding.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447773774 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24476 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Tue, Nov 17, 2015 at 08:57:45AM -0500, Chris Mason wrote: > > > Errrgh, the golden output of this test reflects the changes to the input > > > checking in Anna/Peng's copy_file_range/clone_file_range patches. > > > > > > So, I guess the question is, should I reset the golden output to whatever > > > btrfs spits out before that patchset, and we'll consider the alterations > > > to be bugs/regressions/whatever that ought to be fixed in their patches? > > > > Some bits in btrfs don't seem kosher. But it would be good to > > explicitly send patches for btrfs to adopt to what might make more > > sense, and then follow it in the other implementations. > > Btrfs does check for directories, but we should really be checking for > regular files too. In the end, we only copy extents that would > correspond with regular files, so we're sneaking by. Yes, I saw that. So so far I'd suggest something like the following for btrfs: - return EBADFD for missing read/wite permissions - return EINVAL for wrong non-directory file types as the source fd And then make the test case and other implementations match this. Does this sound like a plan? From viro@ftp.linux.org.uk Tue Nov 17 09:33:32 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9AAF77F37 for ; Tue, 17 Nov 2015 09:33:32 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 87050304032 for ; Tue, 17 Nov 2015 07:33:31 -0800 (PST) X-ASG-Debug-ID: 1447774409-04cb6c0cd3c1080001-NocioJ Received: from ZenIV.linux.org.uk (zeniv.linux.org.uk [195.92.253.2]) by cuda.sgi.com with ESMTP id Pu8FVDFUfkhnoDBO (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 17 Nov 2015 07:33:30 -0800 (PST) X-Barracuda-Envelope-From: viro@ftp.linux.org.uk X-Barracuda-Apparent-Source-IP: 195.92.253.2 Received: from viro by ZenIV.linux.org.uk with local (Exim 4.76 #1 (Red Hat Linux)) id 1ZyiG0-00029G-Gr; Tue, 17 Nov 2015 15:33:20 +0000 Date: Tue, 17 Nov 2015 15:33:20 +0000 From: Al Viro To: Christoph Hellwig Cc: Chris Mason , "Darrick J. Wong" , xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org Subject: Re: clone ioctl return values Message-ID: <20151117153320.GU22011@ZenIV.linux.org.uk> X-ASG-Orig-Subj: Re: clone ioctl return values References: <20151116120431.GA2860@infradead.org> <20151117002822.GA32467@birch.djwong.org> <20151117105433.GA18093@infradead.org> <20151117135745.GF17545@ret.masoncoding.com> <20151117152251.GA5392@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117152251.GA5392@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: Al Viro X-Barracuda-Connect: zeniv.linux.org.uk[195.92.253.2] X-Barracuda-Start-Time: 1447774409 X-Barracuda-Encrypted: DHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24475 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Nov 17, 2015 at 07:22:52AM -0800, Christoph Hellwig wrote: > Yes, I saw that. So so far I'd suggest something like the following > for btrfs: > > - return EBADFD for missing read/wite permissions Yowwwch... What the hell does that have to do with STREAMS? Or are you using EBADFD as "nobody uses that error value anyway, let's assign it whatever meaning we need"? Besides, that'll be confused with EBADF all the time. I strongly recommend against that. From BATV+6e1edf2bac5570895f63+4468+infradead.org+hch@bombadil.srs.infradead.org Tue Nov 17 09:36:27 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F40B17F37 for ; Tue, 17 Nov 2015 09:36:26 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id D2E4D8F8035 for ; Tue, 17 Nov 2015 07:36:26 -0800 (PST) X-ASG-Debug-ID: 1447774585-04bdf07f08d5ff0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id MObrCpFIGRIQqvQo (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 17 Nov 2015 07:36:25 -0800 (PST) X-Barracuda-Envelope-From: BATV+6e1edf2bac5570895f63+4468+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZyiIx-0000PB-D6; Tue, 17 Nov 2015 15:36:23 +0000 Date: Tue, 17 Nov 2015 07:36:23 -0800 From: Christoph Hellwig To: Al Viro Cc: linux-fsdevel@vger.kernel.org, Chris Mason , xfs@oss.sgi.com, "Darrick J. Wong" Subject: Re: clone ioctl return values Message-ID: <20151117153623.GA27322@infradead.org> X-ASG-Orig-Subj: Re: clone ioctl return values References: <20151116120431.GA2860@infradead.org> <20151117002822.GA32467@birch.djwong.org> <20151117105433.GA18093@infradead.org> <20151117135745.GF17545@ret.masoncoding.com> <20151117152251.GA5392@infradead.org> <20151117153320.GU22011@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117153320.GU22011@ZenIV.linux.org.uk> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447774585 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24476 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Tue, Nov 17, 2015 at 03:33:20PM +0000, Al Viro wrote: > On Tue, Nov 17, 2015 at 07:22:52AM -0800, Christoph Hellwig wrote: > > > Yes, I saw that. So so far I'd suggest something like the following > > for btrfs: > > > > - return EBADFD for missing read/wite permissions > > Yowwwch... What the hell does that have to do with STREAMS? Or are you > using EBADFD as "nobody uses that error value anyway, let's assign it > whatever meaning we need"? > > Besides, that'll be confused with EBADF all the time. I strongly > recommend against that. Yes, I meant EBADF. That's what we normally use for missing FMODE_READ/WRITE or fget failures, so why would this call be different from everything else? From chris@onthe.net.au Tue Nov 17 10:28:12 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BAF9A7F3F for ; Tue, 17 Nov 2015 10:28:12 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 321E7AC003 for ; Tue, 17 Nov 2015 08:28:09 -0800 (PST) X-ASG-Debug-ID: 1447777684-04cbb0605be68b0001-NocioJ Received: from smtp1.onthe.net.au (smtp1.onthe.net.au [203.22.196.249]) by cuda.sgi.com with ESMTP id oUElFRc17nXBF1Sa for ; Tue, 17 Nov 2015 08:28:05 -0800 (PST) X-Barracuda-Envelope-From: chris@onthe.net.au X-Barracuda-Apparent-Source-IP: 203.22.196.249 Received: from localhost (localhost [127.0.0.1]) by smtp1.onthe.net.au (Postfix) with ESMTP id 29EAC617BE; Wed, 18 Nov 2015 03:28:04 +1100 (EST) Received: from smtp1.onthe.net.au ([127.0.0.1]) by localhost (smtp1.onthe.net.au [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id nAMnTUR-wuv1; Wed, 18 Nov 2015 03:28:03 +1100 (EST) Received: from o1.private.otn.net.au (o1.private.onthe.net.au [10.200.63.41]) by smtp1.onthe.net.au (Postfix) with ESMTP id BFF93617B0; Wed, 18 Nov 2015 03:28:03 +1100 (EST) Received: from hestia (pony.office.onthe.net.au [10.9.1.6]) by o1.private.otn.net.au (Postfix) with ESMTP id 2F66EE122D; Wed, 18 Nov 2015 03:28:03 +1100 (AEDT) Received: by hestia (Postfix, from userid 1000) id C2F3C580730; Wed, 18 Nov 2015 03:28:02 +1100 (AEDT) Date: Wed, 18 Nov 2015 03:28:02 +1100 From: Chris Dunlop To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: Disk error, then endless loop Message-ID: <20151117162802.GA28374@onthe.net.au> X-ASG-Orig-Subj: Re: Disk error, then endless loop References: <20151117080332.GA28936@onthe.net.au> <20151117124148.GA20118@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117124148.GA20118@bfoster.bfoster> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: smtp1.onthe.net.au[203.22.196.249] X-Barracuda-Start-Time: 1447777685 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24476 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- G'day Brian, Thanks for your response... On Tue, Nov 17, 2015 at 07:41:48AM -0500, Brian Foster wrote: > On Tue, Nov 17, 2015 at 07:03:33PM +1100, Chris Dunlop wrote: >> Hi, >> >> XFS error handling on linux 3.18.21 looks to be "suboptimal". >> >> I had an XFS disk start returning read errors, then disappear from the >> controller altogether (only to come back under a different /dev/sdXX name). >> XFS is now endlessly flooding these messages into kern.log (55,000 copies >> and counting...): > > Note that disks returning errors and/or dropping on and offline is > outside the realm of the filesystem. There isn't much the fs can do in > that case. What?! The fs can't fix broken disks?! But I want magic ponies! :-) >> [5358213.926049] XFS (sdu1): metadata I/O error: block 0x2b163a0 ("xfs_trans_read_buf_map") error 5 numblks 16 >> [5358213.926141] XFS (sdu1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. >> >> More info below, but some questions: >> >> Is this a known issue, if so, has it been fixed, and if so, in which commit? >> > > This is expected and the most likely scenario is that the filesystem > eventually shuts itself down to avoid further damage. At this point, > most operations will return -EIO (-5) back to the user. > >> I guess I'm going to have to hard boot the machine to get out of this, >> right? > > Normally you should be able to unmount a filesystem that has shut > down... But not in this case... >> I tried to umount the filesystem but the umount is now hung and unkillable: >> >> # ps -ostat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount >> STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD >> D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 > > ... but it appears you still have something pending in the AIL which is > holding everything up. The most likely case is an EFI/EFD item hanging > around from an extent free operation, as this was a known issue, > particularly on fs shutdowns. Fixes for this went into the v4.3 kernel. Any chance of these fixes getting into -stable, or are they too intrusive and/or depend on other intrusive changes? > Note that this won't address whatever is wrong with the disk in the > first place, Bwaaaaahhhh, magic ponies! > just (hopefully) the ability to unmount when it ultimately fails. Yes, that's what I was hoping for. > Does the umount process actually appear to be doing anything? E.g., are > you seeing noticeable CPU load or I/O errors continue to the logs, or > has everything pretty much locked up? You could also enable tracepoints > (trace-cmd start -e "xfs:*"; cat /sys/kernel/debug/tracing/trace_pipe) > to get a quick idea of what's going on. No, the umount hasn't done anything noticable in the past 6.5 hours: b2# date; ps -opid,lstart,time,stat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount Wed Nov 18 03:08:30 AEDT 2015 PID STARTED TIME STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD 23946 Tue Nov 17 17:30:41 2015 00:00:00 D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 I don't know how to interpret the tracepoints, but there are other busy XFS filesystems on the box so that's cluttering things up. For what it's worth, it appears the original device (/dev/sdu1) was previously dev 65:65: b2# ls -l /dev/sd[tuv]{,1} brw-rw---T 1 root disk 65, 48 Sep 16 17:11 /dev/sdt brw-rw---T 1 root disk 65, 49 Sep 16 17:11 /dev/sdt1 brw-rw---T 1 root disk 65, 80 Oct 30 15:38 /dev/sdv brw-rw---T 1 root disk 65, 81 Oct 30 15:40 /dev/sdv1 ..and in 10 seconds of /sys/kernel/debug/tracing/trace_pipe we have: # grep 'dev 65:65' /sys/kernel/debug/tracing/trace_pipe > /tmp/x1 & sleep 10; kill $! # wc -l /tmp/x1 181953 /tmp/x1 # head /tmp/x1 <...>-7702 [012] .... 5392362.786946: xfs_buf_item_iodone_async: dev 65:65 bno 0x1828eed18 nblks 0x8 hold 2 pincount 0 lock 0 flags ASYNC|DONE|PAGES caller xfs_buf_ioend [xfs] <...>-7702 [012] .... 5392362.786946: xfs_buf_ioerror: dev 65:65 bno 0x1828eed18 len 0x1000 hold 2 pincount 0 lock 0 error 0 flags ASYNC|DONE|PAGES caller xfs_buf_iodone_callbacks [xfs] xfsaild/sdu1-7991 [005] .N.. 5392363.647059: xfs_buf_submit: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] xfsaild/sdu1-7991 [005] .N.. 5392363.647059: xfs_buf_hold: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_rele: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 3 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_submit: dev 65:65 bno 0x280006398 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_hold: dev 65:65 bno 0x280006398 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] xfsaild/sdu1-7991 [005] .N.. 5392363.647063: xfs_buf_rele: dev 65:65 bno 0x280006398 nblks 0x8 hold 3 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] xfsaild/sdu1-7991 [005] .N.. 5392363.647063: xfs_buf_submit: dev 65:65 bno 0x2800063f8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] xfsaild/sdu1-7991 [005] .N.. 5392363.647064: xfs_buf_hold: dev 65:65 bno 0x2800063f8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] In the 181953 lines there's a set of 188 different block numbers appearing, ranging from 0x8 to 0x2900ffbd8: # sed -rn 's/.*bno (0x[[:xdigit:]]+).*/\1/p' /tmp/x1 | sort -u > /tmp/x2 # wc -l /tmp/x2 188 /tmp/x2 # perl -pe 's/(.*)/hex($1)/e' /tmp/x2 | sort -n | perl -ne 'printf "0x%x\n",$_' > /tmp/x3 # head /tmp/x3 0x8 0x10 0x20 0x28 0x3188 0x4a40 0x4a68 0x2b163a0 0x31fecd0 0x426e8f8 b2# tail /tmp/x3 0x2900ffb78 0x2900ffb88 0x2900ffb98 0x2900ffba8 0x2900ffbb0 0x2900ffbb8 0x2900ffbc0 0x2900ffbc8 0x2900ffbd0 0x2900ffbd8 >> As previously mentioned, the disk has actually reappeared under a different >> /dev/sdXX name (it was sdu, now sdbh). Trying to mount the disk (read only) >> results in: >> >> # mkdir /mnt/xfs && mount -ologdev=/dev/md8p5,ro /dev/sdbh1 /mnt/xfs >> mount: /dev/sdbh1 already mounted or /mnt/xfs busy > > Probably due to either a uuid check or blocking on access to the > external log device. You'll probably need to clean up the stale mount > before this will work. > > As it is, something is clearly wrong with the drive. I can't really > interpret the I/O errors and whatnot (linux-scsi?), but you probably > want to look into health assessment tools (e.g., smart) to get an idea > of what's wrong and/or replace the device and restore from backups (or > perhaps heal via the ceph cluster, in your case). Sure. It's not the disk that's concerning me, they're expected to die, but it looks like the disk error has put XFS in a state where the only solution is a hard power cycle (after quiescing and cleaning up what I can): I haven't tried it yet, but I expect I won't be able reboot cleanly. > > Brian Cheers, Chris From bfoster@redhat.com Tue Nov 17 11:37:28 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9D75D7F37 for ; Tue, 17 Nov 2015 11:37:28 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 11DD0AC003 for ; Tue, 17 Nov 2015 09:37:27 -0800 (PST) X-ASG-Debug-ID: 1447781845-04cb6c0cd2c3a80001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id GXrCRbqnruhfMV56 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 17 Nov 2015 09:37:26 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id A56A38F28D; Tue, 17 Nov 2015 17:37:25 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAHHbP7J007219; Tue, 17 Nov 2015 12:37:25 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 95FEA120A64; Tue, 17 Nov 2015 12:37:24 -0500 (EST) Date: Tue, 17 Nov 2015 12:37:24 -0500 From: Brian Foster To: Chris Dunlop Cc: xfs@oss.sgi.com Subject: Re: Disk error, then endless loop Message-ID: <20151117173724.GA18963@bfoster.bfoster> X-ASG-Orig-Subj: Re: Disk error, then endless loop References: <20151117080332.GA28936@onthe.net.au> <20151117124148.GA20118@bfoster.bfoster> <20151117162802.GA28374@onthe.net.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117162802.GA28374@onthe.net.au> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447781846 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 18, 2015 at 03:28:02AM +1100, Chris Dunlop wrote: > G'day Brian, > > Thanks for your response... > > On Tue, Nov 17, 2015 at 07:41:48AM -0500, Brian Foster wrote: > > On Tue, Nov 17, 2015 at 07:03:33PM +1100, Chris Dunlop wrote: > >> Hi, > >> ... > > >> I tried to umount the filesystem but the umount is now hung and unkillable: > >> > >> # ps -ostat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount > >> STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD > >> D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 > > > > ... but it appears you still have something pending in the AIL which is > > holding everything up. The most likely case is an EFI/EFD item hanging > > around from an extent free operation, as this was a known issue, > > particularly on fs shutdowns. Fixes for this went into the v4.3 kernel. > > Any chance of these fixes getting into -stable, or are they too intrusive > and/or depend on other intrusive changes? > I don't think so... it was a multi-patch series and a rework of the EFI/EFD reference counting as opposed to an isolated bug fix. For reference, it was commits 5e4b538 through f0b2efa or so. > > Note that this won't address whatever is wrong with the disk in the > > first place, > > Bwaaaaahhhh, magic ponies! > > > just (hopefully) the ability to unmount when it ultimately fails. > > Yes, that's what I was hoping for. > > > Does the umount process actually appear to be doing anything? E.g., are > > you seeing noticeable CPU load or I/O errors continue to the logs, or > > has everything pretty much locked up? You could also enable tracepoints > > (trace-cmd start -e "xfs:*"; cat /sys/kernel/debug/tracing/trace_pipe) > > to get a quick idea of what's going on. > > No, the umount hasn't done anything noticable in the past 6.5 hours: > > b2# date; ps -opid,lstart,time,stat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount > Wed Nov 18 03:08:30 AEDT 2015 > PID STARTED TIME STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD > 23946 Tue Nov 17 17:30:41 2015 00:00:00 D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 > > I don't know how to interpret the tracepoints, but there are other busy > XFS filesystems on the box so that's cluttering things up. For what it's > worth, it appears the original device (/dev/sdu1) was previously dev > 65:65: > > b2# ls -l /dev/sd[tuv]{,1} > brw-rw---T 1 root disk 65, 48 Sep 16 17:11 /dev/sdt > brw-rw---T 1 root disk 65, 49 Sep 16 17:11 /dev/sdt1 > brw-rw---T 1 root disk 65, 80 Oct 30 15:38 /dev/sdv > brw-rw---T 1 root disk 65, 81 Oct 30 15:40 /dev/sdv1 > > ..and in 10 seconds of /sys/kernel/debug/tracing/trace_pipe we have: > > # grep 'dev 65:65' /sys/kernel/debug/tracing/trace_pipe > /tmp/x1 & sleep 10; kill $! > # wc -l /tmp/x1 > 181953 /tmp/x1 > # head /tmp/x1 > <...>-7702 [012] .... 5392362.786946: xfs_buf_item_iodone_async: dev 65:65 bno 0x1828eed18 nblks 0x8 hold 2 pincount 0 lock 0 flags ASYNC|DONE|PAGES caller xfs_buf_ioend [xfs] > <...>-7702 [012] .... 5392362.786946: xfs_buf_ioerror: dev 65:65 bno 0x1828eed18 len 0x1000 hold 2 pincount 0 lock 0 error 0 flags ASYNC|DONE|PAGES caller xfs_buf_iodone_callbacks [xfs] > xfsaild/sdu1-7991 [005] .N.. 5392363.647059: xfs_buf_submit: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] > xfsaild/sdu1-7991 [005] .N.. 5392363.647059: xfs_buf_hold: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_rele: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 3 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_submit: dev 65:65 bno 0x280006398 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] > xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_hold: dev 65:65 bno 0x280006398 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > xfsaild/sdu1-7991 [005] .N.. 5392363.647063: xfs_buf_rele: dev 65:65 bno 0x280006398 nblks 0x8 hold 3 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > xfsaild/sdu1-7991 [005] .N.. 5392363.647063: xfs_buf_submit: dev 65:65 bno 0x2800063f8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] > xfsaild/sdu1-7991 [005] .N.. 5392363.647064: xfs_buf_hold: dev 65:65 bno 0x2800063f8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > Hmm, that is notably more activity than I recall when reproducing the original AIL issue. Do we know whether the filesystem had actually shut down or is in some intermediate state looping on errors? The fact that it continues to try and submit I/O suggests that perhaps it hasn't shut down for whatever reason. If the device has already dropped and reconnected as a new dev node, it's probably harmless at this point to just try to forcibly shut down the fs on the old one. Could you try the following? xfs_io -x -c shutdown Can you unmount the fs after that? If not, is there still any tracepoint activity on the old device? Brian > In the 181953 lines there's a set of 188 different block numbers > appearing, ranging from 0x8 to 0x2900ffbd8: > > # sed -rn 's/.*bno (0x[[:xdigit:]]+).*/\1/p' /tmp/x1 | sort -u > /tmp/x2 > # wc -l /tmp/x2 > 188 /tmp/x2 > # perl -pe 's/(.*)/hex($1)/e' /tmp/x2 | sort -n | perl -ne 'printf "0x%x\n",$_' > /tmp/x3 > # head /tmp/x3 > 0x8 > 0x10 > 0x20 > 0x28 > 0x3188 > 0x4a40 > 0x4a68 > 0x2b163a0 > 0x31fecd0 > 0x426e8f8 > b2# tail /tmp/x3 > 0x2900ffb78 > 0x2900ffb88 > 0x2900ffb98 > 0x2900ffba8 > 0x2900ffbb0 > 0x2900ffbb8 > 0x2900ffbc0 > 0x2900ffbc8 > 0x2900ffbd0 > 0x2900ffbd8 > > >> As previously mentioned, the disk has actually reappeared under a different > >> /dev/sdXX name (it was sdu, now sdbh). Trying to mount the disk (read only) > >> results in: > >> > >> # mkdir /mnt/xfs && mount -ologdev=/dev/md8p5,ro /dev/sdbh1 /mnt/xfs > >> mount: /dev/sdbh1 already mounted or /mnt/xfs busy > > > > Probably due to either a uuid check or blocking on access to the > > external log device. You'll probably need to clean up the stale mount > > before this will work. > > > > As it is, something is clearly wrong with the drive. I can't really > > interpret the I/O errors and whatnot (linux-scsi?), but you probably > > want to look into health assessment tools (e.g., smart) to get an idea > > of what's wrong and/or replace the device and restore from backups (or > > perhaps heal via the ceph cluster, in your case). > > Sure. It's not the disk that's concerning me, they're expected to die, > but it looks like the disk error has put XFS in a state where the only > solution is a hard power cycle (after quiescing and cleaning up what I > can): I haven't tried it yet, but I expect I won't be able reboot > cleanly. > > > > > Brian > > Cheers, > > Chris > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From ross.zwisler@linux.intel.com Tue Nov 17 11:52:48 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DF4917F37 for ; Tue, 17 Nov 2015 11:52:47 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 68182AC003 for ; Tue, 17 Nov 2015 09:52:47 -0800 (PST) X-ASG-Debug-ID: 1447782765-04cb6c0cd4c3f20001-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id G5iAywO6neFVpbMP for ; Tue, 17 Nov 2015 09:52:45 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga103.fm.intel.com with ESMTP; 17 Nov 2015 09:52:45 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,308,1444719600"; d="scan'208";a="822360638" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.87]) by orsmga001.jf.intel.com with ESMTP; 17 Nov 2015 09:52:43 -0800 Date: Tue, 17 Nov 2015 10:52:43 -0700 From: Ross Zwisler To: Dave Hansen Cc: Ross Zwisler , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox Subject: Re: [PATCH v2 02/11] mm: add pmd_mkclean() Message-ID: <20151117175243.GA28024@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH v2 02/11] mm: add pmd_mkclean() Mail-Followup-To: Ross Zwisler , Dave Hansen , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-3-git-send-email-ross.zwisler@linux.intel.com> <56468838.6010506@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56468838.6010506@intel.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447782765 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24478 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Nov 13, 2015 at 05:02:48PM -0800, Dave Hansen wrote: > On 11/13/2015 04:06 PM, Ross Zwisler wrote: > > +static inline pmd_t pmd_mkclean(pmd_t pmd) > > +{ > > + return pmd_clear_flags(pmd, _PAGE_DIRTY | _PAGE_SOFT_DIRTY); > > +} > > pte_mkclean() doesn't clear _PAGE_SOFT_DIRTY. What the thought behind > doing it here? I just wrote it to undo the work done by pmd_mkdirty() - you're right, it should mirror the work done by pte_mkclean() and not clear _PAGE_SOFT_DIRTY. I'll fix this for v3, thanks! From ross.zwisler@linux.intel.com Tue Nov 17 12:10:36 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1C28E7F37 for ; Tue, 17 Nov 2015 12:10:36 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id E3E5030404E for ; Tue, 17 Nov 2015 10:10:32 -0800 (PST) X-ASG-Debug-ID: 1447783830-04bdf07f07da170001-NocioJ Received: from mga01.intel.com ([192.55.52.88]) by cuda.sgi.com with ESMTP id pfMBMteEkReLqmcH for ; Tue, 17 Nov 2015 10:10:30 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.88 X-ASG-Whitelist: EmailCat (corporate) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP; 17 Nov 2015 10:09:01 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,308,1444719600"; d="scan'208";a="852945533" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.87]) by orsmga002.jf.intel.com with ESMTP; 17 Nov 2015 10:08:59 -0800 Date: Tue, 17 Nov 2015 11:08:58 -0700 From: Ross Zwisler To: Dave Chinner Cc: Ross Zwisler , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 07/11] mm: add find_get_entries_tag() Message-ID: <20151117180858.GB28024@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH v2 07/11] mm: add find_get_entries_tag() Mail-Followup-To: Ross Zwisler , Dave Chinner , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-8-git-send-email-ross.zwisler@linux.intel.com> <20151116224222.GW19199@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151116224222.GW19199@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: UNKNOWN[192.55.52.88] X-Barracuda-Start-Time: 1447783830 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Nov 17, 2015 at 09:42:22AM +1100, Dave Chinner wrote: > On Fri, Nov 13, 2015 at 05:06:46PM -0700, Ross Zwisler wrote: > > Add find_get_entries_tag() to the family of functions that include > > find_get_entries(), find_get_pages() and find_get_pages_tag(). This is > > needed for DAX dirty page handling because we need a list of both page > > offsets and radix tree entries ('indices' and 'entries' in this function) > > that are marked with the PAGECACHE_TAG_TOWRITE tag. > > > > Signed-off-by: Ross Zwisler > > --- > > include/linux/pagemap.h | 3 +++ > > mm/filemap.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++++ > > 2 files changed, 64 insertions(+) > > > > diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h > > index a6c78e0..6fea3be 100644 > > --- a/include/linux/pagemap.h > > +++ b/include/linux/pagemap.h > > @@ -354,6 +354,9 @@ unsigned find_get_pages_contig(struct address_space *mapping, pgoff_t start, > > unsigned int nr_pages, struct page **pages); > > unsigned find_get_pages_tag(struct address_space *mapping, pgoff_t *index, > > int tag, unsigned int nr_pages, struct page **pages); > > +unsigned find_get_entries_tag(struct address_space *mapping, pgoff_t start, > > + int tag, unsigned int nr_entries, > > + struct page **entries, pgoff_t *indices); > > > > struct page *grab_cache_page_write_begin(struct address_space *mapping, > > pgoff_t index, unsigned flags); > > diff --git a/mm/filemap.c b/mm/filemap.c > > index d5e94fd..89ab448 100644 > > --- a/mm/filemap.c > > +++ b/mm/filemap.c > > @@ -1454,6 +1454,67 @@ repeat: > > } > > EXPORT_SYMBOL(find_get_pages_tag); > > > > +/** > > + * find_get_entries_tag - find and return entries that match @tag > > + * @mapping: the address_space to search > > + * @start: the starting page cache index > > + * @tag: the tag index > > + * @nr_entries: the maximum number of entries > > + * @entries: where the resulting entries are placed > > + * @indices: the cache indices corresponding to the entries in @entries > > + * > > + * Like find_get_entries, except we only return entries which are tagged with > > + * @tag. > > + */ > > +unsigned find_get_entries_tag(struct address_space *mapping, pgoff_t start, > > + int tag, unsigned int nr_entries, > > + struct page **entries, pgoff_t *indices) > > +{ > > + void **slot; > > + unsigned int ret = 0; > > + struct radix_tree_iter iter; > > + > > + if (!nr_entries) > > + return 0; > > + > > + rcu_read_lock(); > > +restart: > > + radix_tree_for_each_tagged(slot, &mapping->page_tree, > > + &iter, start, tag) { > > + struct page *page; > > +repeat: > > + page = radix_tree_deref_slot(slot); > > + if (unlikely(!page)) > > + continue; > > + if (radix_tree_exception(page)) { > > + if (radix_tree_deref_retry(page)) > > + goto restart; > > That restart condition looks wrong. ret can be non-zero, but we > start looking from the original start index again, resulting in > duplicates being added to the return arrays... This same restart logic is used in all the functions in this family: find_get_entry() (though the tag is "repeat"), find_get_entries(), find_get_pages(), find_get_pages_contig() and find_get_pages_tag(). Most don't have it well commented, but there is a good comment in find_get_pages(): if (radix_tree_exception(page)) { if (radix_tree_deref_retry(page)) { /* * Transient condition which can only trigger * when entry at index 0 moves out of or back * to root: none yet gotten, safe to restart. */ WARN_ON(iter.index); goto restart; } I think the logic is correct, but I'm happy to add this comment in find_get_entries_tag() if it would make things clearer. From ross.zwisler@linux.intel.com Tue Nov 17 12:30:21 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 81B547F37 for ; Tue, 17 Nov 2015 12:30:21 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5140930404E for ; Tue, 17 Nov 2015 10:30:21 -0800 (PST) X-ASG-Debug-ID: 1447785018-04cbb0605ee96a0001-NocioJ Received: from mga14.intel.com ([192.55.52.115]) by cuda.sgi.com with ESMTP id qUw8yApPdfdoD34j for ; Tue, 17 Nov 2015 10:30:18 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.115 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP; 17 Nov 2015 10:30:18 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,309,1444719600"; d="scan'208";a="840787311" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.87]) by fmsmga001.fm.intel.com with ESMTP; 17 Nov 2015 10:30:16 -0800 Date: Tue, 17 Nov 2015 11:30:16 -0700 From: Ross Zwisler To: Dave Chinner Cc: Ross Zwisler , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 08/11] dax: add support for fsync/sync Message-ID: <20151117183016.GC28024@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH v2 08/11] dax: add support for fsync/sync Mail-Followup-To: Ross Zwisler , Dave Chinner , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-9-git-send-email-ross.zwisler@linux.intel.com> <20151116225807.GX19199@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151116225807.GX19199@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: UNKNOWN[192.55.52.115] X-Barracuda-Start-Time: 1447785018 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24479 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Tue, Nov 17, 2015 at 09:58:07AM +1100, Dave Chinner wrote: > On Fri, Nov 13, 2015 at 05:06:47PM -0700, Ross Zwisler wrote: > > To properly handle fsync/msync in an efficient way DAX needs to track dirty > > pages so it is able to flush them durably to media on demand. > > > > The tracking of dirty pages is done via the radix tree in struct > > address_space. This radix tree is already used by the page writeback > > infrastructure for tracking dirty pages associated with an open file, and > > it already has support for exceptional (non struct page*) entries. We > > build upon these features to add exceptional entries to the radix tree for > > DAX dirty PMD or PTE pages at fault time. > > > > When called as part of the msync/fsync flush path DAX queries the radix > > tree for dirty entries, flushing them and then marking the PTE or PMD page > > table entries as clean. The step of cleaning the PTE or PMD entries is > > necessary so that on subsequent writes to the same page we get a new write > > fault allowing us to once again dirty the DAX tag in the radix tree. > > > > Signed-off-by: Ross Zwisler > > --- > > fs/dax.c | 140 +++++++++++++++++++++++++++++++++++++++++++++++++--- > > include/linux/dax.h | 1 + > > mm/huge_memory.c | 14 +++--- > > 3 files changed, 141 insertions(+), 14 deletions(-) > > > > diff --git a/fs/dax.c b/fs/dax.c > > index 131fd35a..9ce6d1b 100644 > > --- a/fs/dax.c > > +++ b/fs/dax.c > > @@ -24,7 +24,9 @@ > > #include > > #include > > #include > > +#include > > #include > > +#include > > #include > > #include > > #include > > @@ -287,6 +289,53 @@ static int copy_user_bh(struct page *to, struct buffer_head *bh, > > return 0; > > } > > > > +static int dax_dirty_pgoff(struct address_space *mapping, unsigned long pgoff, > > + void __pmem *addr, bool pmd_entry) > > +{ > > + struct radix_tree_root *page_tree = &mapping->page_tree; > > + int error = 0; > > + void *entry; > > + > > + __mark_inode_dirty(mapping->host, I_DIRTY_PAGES); > > + > > + spin_lock_irq(&mapping->tree_lock); > > + entry = radix_tree_lookup(page_tree, pgoff); > > + if (addr == NULL) { > > + if (entry) > > + goto dirty; > > + else { > > + WARN(1, "DAX pfn_mkwrite failed to find an entry"); > > + goto out; > > + } > > + } > > + > > + if (entry) { > > + if (pmd_entry && RADIX_DAX_TYPE(entry) == RADIX_DAX_PTE) { > > + radix_tree_delete(&mapping->page_tree, pgoff); > > + mapping->nrdax--; > > + } else > > + goto dirty; > > + } > > Logic is pretty spagettied here. Perhaps: > > entry = radix_tree_lookup(page_tree, pgoff); > if (entry) { > if (!pmd_entry || RADIX_DAX_TYPE(entry) == RADIX_DAX_PMD)) > goto dirty; > radix_tree_delete(&mapping->page_tree, pgoff); > mapping->nrdax--; > } else { > WARN_ON(!addr); > goto out_unlock; > } > .... I don't think that this works because now if !entry we unconditionally goto out_unlock without inserting a new entry. I'll try and simplify the logic and add some comments. > > + > > + BUG_ON(RADIX_DAX_TYPE(addr)); > > + if (pmd_entry) > > + error = radix_tree_insert(page_tree, pgoff, > > + RADIX_DAX_PMD_ENTRY(addr)); > > + else > > + error = radix_tree_insert(page_tree, pgoff, > > + RADIX_DAX_PTE_ENTRY(addr)); > > + > > + if (error) > > + goto out; > > + > > + mapping->nrdax++; > > + dirty: > > + radix_tree_tag_set(page_tree, pgoff, PAGECACHE_TAG_DIRTY); > > + out: > > + spin_unlock_irq(&mapping->tree_lock); > > label should be "out_unlock" rather "out" to indicate in the code > that we are jumping to the correct spot in the error stack... Sure, will do. > > + goto fallback; > > } > > > > out: > > @@ -689,15 +746,12 @@ EXPORT_SYMBOL_GPL(dax_pmd_fault); > > * dax_pfn_mkwrite - handle first write to DAX page > > * @vma: The virtual memory area where the fault occurred > > * @vmf: The description of the fault > > - * > > */ > > int dax_pfn_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) > > { > > - struct super_block *sb = file_inode(vma->vm_file)->i_sb; > > + struct file *file = vma->vm_file; > > > > - sb_start_pagefault(sb); > > - file_update_time(vma->vm_file); > > - sb_end_pagefault(sb); > > + dax_dirty_pgoff(file->f_mapping, vmf->pgoff, NULL, false); > > return VM_FAULT_NOPAGE; > > This seems wrong - it's dropping the freeze protection on fault, and > now the inode timestamp won't get updated, either. Oh, that all still happens in the filesystem pfn_mkwrite code (xfs_filemap_pfn_mkwrite() for XFS). It needs to happen there, I think, because we wanted to order it so that the filesystem freeze happens outside of the XFS_MMAPLOCK_SHARED locking, as it does with the regular PMD and PTE fault paths. Prior to this patch set dax_pfn_mkwrite() was completely unused an was ready to be removed as dead code - it's now being used by all filesystems just to make sure we re-add the newly dirtied page to the radix tree dirty list. > > } > > EXPORT_SYMBOL_GPL(dax_pfn_mkwrite); > > @@ -772,3 +826,77 @@ int dax_truncate_page(struct inode *inode, loff_t from, get_block_t get_block) > > return dax_zero_page_range(inode, from, length, get_block); > > } > > EXPORT_SYMBOL_GPL(dax_truncate_page); > > + > > +static void dax_sync_entry(struct address_space *mapping, pgoff_t pgoff, > > + void *entry) > > +{ > > dax_writeback_pgoff() seems like a more consistent name (consider > dax_dirty_pgoff), and that we are actually doing a writeback > operation, not a "sync" operation. Sure, I'm fine with that change. > > + struct radix_tree_root *page_tree = &mapping->page_tree; > > + int type = RADIX_DAX_TYPE(entry); > > + size_t size; > > + > > + BUG_ON(type != RADIX_DAX_PTE && type != RADIX_DAX_PMD); > > + > > + spin_lock_irq(&mapping->tree_lock); > > + if (!radix_tree_tag_get(page_tree, pgoff, PAGECACHE_TAG_TOWRITE)) { > > + /* another fsync thread already wrote back this entry */ > > + spin_unlock_irq(&mapping->tree_lock); > > + return; > > + } > > + radix_tree_tag_clear(page_tree, pgoff, PAGECACHE_TAG_TOWRITE); > > + radix_tree_tag_clear(page_tree, pgoff, PAGECACHE_TAG_DIRTY); > > + spin_unlock_irq(&mapping->tree_lock); > > + > > + if (type == RADIX_DAX_PMD) > > + size = PMD_SIZE; > > + else > > + size = PAGE_SIZE; > > + > > + wb_cache_pmem(RADIX_DAX_ADDR(entry), size); > > + pgoff_mkclean(pgoff, mapping); > > This looks racy w.r.t. another operation setting the radix tree > dirty tags. i.e. there is no locking to serialise marking the > vma/pte clean and another operation marking the radix tree dirty. I think you're right - I'll look into how to protect us from this race. Thank you for catching this. > > +} > > + > > +/* > > + * Flush the mapping to the persistent domain within the byte range of (start, > > + * end). This is required by data integrity operations to ensure file data is on > > + * persistent storage prior to completion of the operation. It also requires us > > + * to clean the mappings (i.e. write -> RO) so that we'll get a new fault when > > + * the file is written to again so we have an indication that we need to flush > > + * the mapping if a data integrity operation takes place. > > + * > > + * We don't need commits to storage here - the filesystems will issue flushes > > + * appropriately at the conclusion of the data integrity operation via REQ_FUA > > + * writes or blkdev_issue_flush() commands. This requires the DAX block device > > + * to implement persistent storage domain fencing/commits on receiving a > > + * REQ_FLUSH or REQ_FUA request so that this works as expected by the higher > > + * layers. > > + */ > > +void dax_fsync(struct address_space *mapping, loff_t start, loff_t end) > > +{ > > dax_writeback_mapping_range() Sure, I'm fine with that change. From prvs=8763e27c61=clm@fb.com Tue Nov 17 12:43:24 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9F6197F37 for ; Tue, 17 Nov 2015 12:43:24 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 822E58F8035 for ; Tue, 17 Nov 2015 10:43:21 -0800 (PST) X-ASG-Debug-ID: 1447785799-04cbb0605ce9a00001-NocioJ Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com [67.231.145.42]) by cuda.sgi.com with ESMTP id 2Kp85vMFm2iqruGd (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 17 Nov 2015 10:43:20 -0800 (PST) X-Barracuda-Envelope-From: prvs=8763e27c61=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.145.42 X-ASG-Whitelist: EmailCat (corporate) Received: from pps.filterd (m0044012.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.15.0.59/8.15.0.59) with SMTP id tAHIdgdm029141; Tue, 17 Nov 2015 10:42:32 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=facebook; bh=VSioXOS4VBdoIClmx6P9JWDGcy+vjkZHZSamqq+P0Vw=; b=dGAEwh48Ux9DzTV6k1LGONGEw41jmeCd+7hTlTlmt0KE9DGHRjaBUB9AzZ0zaXnvn13T 8gKNshId8SiNbgsLpLz6rL+hN5NVlOha0tl5Hlsz5BV8OloCZUEHszW8vO2Dkol2YvAh fpIrx7z054DaZQ4tnyN4pQbcxyWo87I/pjk= Received: from mail.thefacebook.com ([199.201.64.23]) by mx0a-00082601.pphosted.com with ESMTP id 1y7yj9j863-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Tue, 17 Nov 2015 10:42:32 -0800 Received: from localhost (192.168.52.123) by mail.thefacebook.com (192.168.16.11) with Microsoft SMTP Server (TLS) id 14.3.248.2; Tue, 17 Nov 2015 10:42:31 -0800 Date: Tue, 17 Nov 2015 13:42:28 -0500 From: Chris Mason To: Christoph Hellwig CC: "Darrick J. Wong" , , Subject: Re: clone ioctl return values Message-ID: <20151117184228.GG17545@ret.masoncoding.com> X-ASG-Orig-Subj: Re: clone ioctl return values Mail-Followup-To: Chris Mason , Christoph Hellwig , "Darrick J. Wong" , xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org References: <20151116120431.GA2860@infradead.org> <20151117002822.GA32467@birch.djwong.org> <20151117105433.GA18093@infradead.org> <20151117135745.GF17545@ret.masoncoding.com> <20151117152251.GA5392@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20151117152251.GA5392@infradead.org> User-Agent: Mutt/1.5.23.1 (2014-03-12) X-Originating-IP: [192.168.52.123] X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2015-11-17_11:,, signatures=0 X-Barracuda-Connect: mx0a-00082601.pphosted.com[67.231.145.42] X-Barracuda-Start-Time: 1447785799 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Nov 17, 2015 at 07:22:52AM -0800, Christoph Hellwig wrote: > On Tue, Nov 17, 2015 at 08:57:45AM -0500, Chris Mason wrote: > > > > Errrgh, the golden output of this test reflects the changes to the input > > > > checking in Anna/Peng's copy_file_range/clone_file_range patches. > > > > > > > > So, I guess the question is, should I reset the golden output to whatever > > > > btrfs spits out before that patchset, and we'll consider the alterations > > > > to be bugs/regressions/whatever that ought to be fixed in their patches? > > > > > > Some bits in btrfs don't seem kosher. But it would be good to > > > explicitly send patches for btrfs to adopt to what might make more > > > sense, and then follow it in the other implementations. > > > > Btrfs does check for directories, but we should really be checking for > > regular files too. In the end, we only copy extents that would > > correspond with regular files, so we're sneaking by. > > Yes, I saw that. So so far I'd suggest something like the following > for btrfs: > > - return EBADFD for missing read/wite permissions Why not -EPERM? I don't have strong feelings about picking errnos, as long as we're consistent, I'm not worried. > - return EINVAL for wrong non-directory file types as the > source fd Ack. -chris From ross.zwisler@linux.intel.com Tue Nov 17 13:10:50 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 886F67F37 for ; Tue, 17 Nov 2015 13:10:50 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 79EFF8F8035 for ; Tue, 17 Nov 2015 11:10:47 -0800 (PST) X-ASG-Debug-ID: 1447787442-04cbb0605cea1c0001-NocioJ Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by cuda.sgi.com with ESMTP id n265KKcbW5Xf5sF5 for ; Tue, 17 Nov 2015 11:10:42 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 134.134.136.20 X-ASG-Whitelist: EmailCat (corporate) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP; 17 Nov 2015 11:03:42 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,309,1444719600"; d="scan'208";a="853174298" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.87]) by fmsmga002.fm.intel.com with ESMTP; 17 Nov 2015 11:03:42 -0800 Date: Tue, 17 Nov 2015 12:03:41 -0700 From: Ross Zwisler To: Dave Chinner Cc: Ross Zwisler , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 11/11] xfs: add support for DAX fsync/msync Message-ID: <20151117190341.GD28024@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH v2 11/11] xfs: add support for DAX fsync/msync Mail-Followup-To: Ross Zwisler , Dave Chinner , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-12-git-send-email-ross.zwisler@linux.intel.com> <20151116231222.GY19199@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151116231222.GY19199@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: mga02.intel.com[134.134.136.20] X-Barracuda-Start-Time: 1447787442 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Nov 17, 2015 at 10:12:22AM +1100, Dave Chinner wrote: > On Fri, Nov 13, 2015 at 05:06:50PM -0700, Ross Zwisler wrote: > > To properly support the new DAX fsync/msync infrastructure filesystems > > need to call dax_pfn_mkwrite() so that DAX can properly track when a user > > write faults on a previously cleaned address. They also need to call > > dax_fsync() in the filesystem fsync() path. This dax_fsync() call uses > > addresses retrieved from get_block() so it needs to be ordered with > > respect to truncate. This is accomplished by using the same locking that > > was set up for DAX page faults. > > > > Signed-off-by: Ross Zwisler > > --- > > fs/xfs/xfs_file.c | 18 +++++++++++++----- > > 1 file changed, 13 insertions(+), 5 deletions(-) > > > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > > index 39743ef..2b490a1 100644 > > --- a/fs/xfs/xfs_file.c > > +++ b/fs/xfs/xfs_file.c > > @@ -209,7 +209,8 @@ xfs_file_fsync( > > loff_t end, > > int datasync) > > { > > - struct inode *inode = file->f_mapping->host; > > + struct address_space *mapping = file->f_mapping; > > + struct inode *inode = mapping->host; > > struct xfs_inode *ip = XFS_I(inode); > > struct xfs_mount *mp = ip->i_mount; > > int error = 0; > > @@ -218,7 +219,13 @@ xfs_file_fsync( > > > > trace_xfs_file_fsync(ip); > > > > - error = filemap_write_and_wait_range(inode->i_mapping, start, end); > > + if (dax_mapping(mapping)) { > > + xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED); > > + dax_fsync(mapping, start, end); > > + xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED); > > + } > > + > > + error = filemap_write_and_wait_range(mapping, start, end); > > Ok, I don't understand a couple of things here. > > Firstly, if it's a DAX mapping, why are we still calling > filemap_write_and_wait_range() after the dax_fsync() call that has > already written back all the dirty cachelines? > > Secondly, exactly what is the XFS_MMAPLOCK_SHARED lock supposed to > be doing here? I don't see where dax_fsync() has any callouts to > get_block(), so the comment "needs to be ordered with respect to > truncate" doesn't make any obvious sense. If we have a racing > truncate removing entries from the radix tree, then thanks to the > mapping tree lock we'll either find an entry we need to write back, > or we won't find any entry at all, right? You're right, dax_fsync() doesn't call out to get_block() any more. It does save the results of get_block() calls from the page faults, though, and I was concerned about the following race: fsync thread truncate thread ------------ --------------- dax_fsync() save tagged entries in pvec change block mapping for inode so that entries saved in pvec are no longer owned by this inode loop through pvec using stale results from get_block(), flushing and cleaning entries we no longer own In looking at the xfs_file_fsync() code, though, it seems like if this race existed it would also exist for page cache entries that were being put into a pvec in write_cache_pages(), and that we would similarly be writing back cached pages that no longer belong to this inode. Is this race non-existent? > Lastly, this flushing really needs to be inside > filemap_write_and_wait_range(), because we call the writeback code > from many more places than just fsync to ensure ordering of various > operations such that files are in known state before proceeding > (e.g. hole punch). The call to dax_fsync() (soon to be dax_writeback_mapping_range()) first lived in do_writepages() in the RFC version, but was moved into the filesystem so we could have access to get_block(), which is no longer needed, and so we could use the FS level locking. If the race described above isn't an issue then I agree moving this call out of the filesystems and down into the generic page writeback code is probably the right thing to do. Thanks for the feedback. From chris@onthe.net.au Tue Nov 17 13:35:44 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0E2297F3F for ; Tue, 17 Nov 2015 13:35:44 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id F0662304067 for ; Tue, 17 Nov 2015 11:35:40 -0800 (PST) X-ASG-Debug-ID: 1447788936-04cbb0605eeaa80001-NocioJ Received: from smtp1.onthe.net.au (smtp1.onthe.net.au [203.22.196.249]) by cuda.sgi.com with ESMTP id y0MTVNBTFKQHIunS for ; Tue, 17 Nov 2015 11:35:37 -0800 (PST) X-Barracuda-Envelope-From: chris@onthe.net.au X-Barracuda-Apparent-Source-IP: 203.22.196.249 Received: from localhost (localhost [127.0.0.1]) by smtp1.onthe.net.au (Postfix) with ESMTP id 82370617AD; Wed, 18 Nov 2015 06:35:36 +1100 (EST) Received: from smtp1.onthe.net.au ([127.0.0.1]) by localhost (smtp1.onthe.net.au [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id E8f+wD+0D+5Q; Wed, 18 Nov 2015 06:35:36 +1100 (EST) Received: from o1.private.otn.net.au (o1.private.onthe.net.au [10.200.63.41]) by smtp1.onthe.net.au (Postfix) with ESMTP id 09B8B6179E; Wed, 18 Nov 2015 06:35:36 +1100 (EST) Received: from hestia (pony.office.onthe.net.au [10.9.1.6]) by o1.private.otn.net.au (Postfix) with ESMTP id 8EDDCE122D; Wed, 18 Nov 2015 06:35:35 +1100 (AEDT) Received: by hestia (Postfix, from userid 1000) id 03AE1580730; Wed, 18 Nov 2015 06:35:35 +1100 (AEDT) Date: Wed, 18 Nov 2015 06:35:34 +1100 From: Chris Dunlop To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: Disk error, then endless loop Message-ID: <20151117193534.GA1514@onthe.net.au> X-ASG-Orig-Subj: Re: Disk error, then endless loop References: <20151117080332.GA28936@onthe.net.au> <20151117124148.GA20118@bfoster.bfoster> <20151117162802.GA28374@onthe.net.au> <20151117173724.GA18963@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117173724.GA18963@bfoster.bfoster> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: smtp1.onthe.net.au[203.22.196.249] X-Barracuda-Start-Time: 1447788937 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24480 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Nov 17, 2015 at 12:37:24PM -0500, Brian Foster wrote: > On Wed, Nov 18, 2015 at 03:28:02AM +1100, Chris Dunlop wrote: >> On Tue, Nov 17, 2015 at 07:41:48AM -0500, Brian Foster wrote: >>> On Tue, Nov 17, 2015 at 07:03:33PM +1100, Chris Dunlop wrote: >>>> I tried to umount the filesystem but the umount is now hung and unkillable: >>>> >>>> # ps -ostat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount >>>> STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD >>>> D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 >>> >>> ... but it appears you still have something pending in the AIL which is >>> holding everything up. The most likely case is an EFI/EFD item hanging >>> around from an extent free operation, as this was a known issue, >>> particularly on fs shutdowns. Fixes for this went into the v4.3 kernel. >> >> Any chance of these fixes getting into -stable, or are they too intrusive >> and/or depend on other intrusive changes? > > I don't think so... it was a multi-patch series and a rework of the > EFI/EFD reference counting as opposed to an isolated bug fix. For > reference, it was commits 5e4b538 through f0b2efa or so. ... >>> Does the umount process actually appear to be doing anything? E.g., are >>> you seeing noticeable CPU load or I/O errors continue to the logs, or >>> has everything pretty much locked up? You could also enable tracepoints >>> (trace-cmd start -e "xfs:*"; cat /sys/kernel/debug/tracing/trace_pipe) >>> to get a quick idea of what's going on. >> >> No, the umount hasn't done anything noticable in the past 6.5 hours: >> >> b2# date; ps -opid,lstart,time,stat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount >> Wed Nov 18 03:08:30 AEDT 2015 >> PID STARTED TIME STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD >> 23946 Tue Nov 17 17:30:41 2015 00:00:00 D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 >> >> I don't know how to interpret the tracepoints, but there are other busy >> XFS filesystems on the box so that's cluttering things up. For what it's >> worth, it appears the original device (/dev/sdu1) was previously dev >> 65:65: >> >> b2# ls -l /dev/sd[tuv]{,1} >> brw-rw---T 1 root disk 65, 48 Sep 16 17:11 /dev/sdt >> brw-rw---T 1 root disk 65, 49 Sep 16 17:11 /dev/sdt1 >> brw-rw---T 1 root disk 65, 80 Oct 30 15:38 /dev/sdv >> brw-rw---T 1 root disk 65, 81 Oct 30 15:40 /dev/sdv1 >> >> ..and in 10 seconds of /sys/kernel/debug/tracing/trace_pipe we have: >> >> # grep 'dev 65:65' /sys/kernel/debug/tracing/trace_pipe > /tmp/x1 & sleep 10; kill $! >> # wc -l /tmp/x1 >> 181953 /tmp/x1 >> # head /tmp/x1 >> <...>-7702 [012] .... 5392362.786946: xfs_buf_item_iodone_async: dev 65:65 bno 0x1828eed18 nblks 0x8 hold 2 pincount 0 lock 0 flags ASYNC|DONE|PAGES caller xfs_buf_ioend [xfs] >> <...>-7702 [012] .... 5392362.786946: xfs_buf_ioerror: dev 65:65 bno 0x1828eed18 len 0x1000 hold 2 pincount 0 lock 0 error 0 flags ASYNC|DONE|PAGES caller xfs_buf_iodone_callbacks [xfs] >> xfsaild/sdu1-7991 [005] .N.. 5392363.647059: xfs_buf_submit: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] >> xfsaild/sdu1-7991 [005] .N.. 5392363.647059: xfs_buf_hold: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] >> xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_rele: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 3 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] >> xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_submit: dev 65:65 bno 0x280006398 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] >> xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_hold: dev 65:65 bno 0x280006398 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] >> xfsaild/sdu1-7991 [005] .N.. 5392363.647063: xfs_buf_rele: dev 65:65 bno 0x280006398 nblks 0x8 hold 3 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] >> xfsaild/sdu1-7991 [005] .N.. 5392363.647063: xfs_buf_submit: dev 65:65 bno 0x2800063f8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] >> xfsaild/sdu1-7991 [005] .N.. 5392363.647064: xfs_buf_hold: dev 65:65 bno 0x2800063f8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] >> > > Hmm, that is notably more activity than I recall when reproducing the > original AIL issue. Do we know whether the filesystem had actually shut > down or is in some intermediate state looping on errors? The fact that > it continues to try and submit I/O suggests that perhaps it hasn't shut > down for whatever reason. > > If the device has already dropped and reconnected as a new dev node, > it's probably harmless at this point to just try to forcibly shut down > the fs on the old one. Could you try the following? > > xfs_io -x -c shutdown # xfs_io -x -c shutdown /var/lib/ceph/osd/ceph-18 foreign file active, shutdown command is for XFS filesystems only # grep ceph-18 /etc/mtab <<< crickets >>> I don't know when the fs disappeared from mtab, it could have been when I first did the umount I guess, I didn't think to check at the time. But the umount is still there: # date; ps -opid,lstart,time,stat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount Wed Nov 18 06:23:21 AEDT 2015 PID STARTED TIME STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD 23946 Tue Nov 17 17:30:41 2015 00:00:00 D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 > Can you unmount the fs after that? If not, is there still any tracepoint > activity on the old device? > > Brian The activity is still ongoing on the old device: # trace-cmd start -e "xfs:*" /sys/kernel/debug/tracing/events/xfs/*/filter # grep 'dev 65:65' /sys/kernel/debug/tracing/trace_pipe > /tmp/y1 & sleep 10; kill $!; wc -l /tmp/y1 129573 /tmp/y1 Doing my little sed and perl dance shows it's still the same set of 188 blocks as mentioned before. Chris >> In the 181953 lines there's a set of 188 different block numbers >> appearing, ranging from 0x8 to 0x2900ffbd8: >> >> # sed -rn 's/.*bno (0x[[:xdigit:]]+).*/\1/p' /tmp/x1 | sort -u > /tmp/x2 >> # wc -l /tmp/x2 >> 188 /tmp/x2 >> # perl -pe 's/(.*)/hex($1)/e' /tmp/x2 | sort -n | perl -ne 'printf "0x%x\n",$_' > /tmp/x3 >> # head /tmp/x3 >> 0x8 >> 0x10 >> 0x20 >> 0x28 >> 0x3188 >> 0x4a40 >> 0x4a68 >> 0x2b163a0 >> 0x31fecd0 >> 0x426e8f8 >> b2# tail /tmp/x3 >> 0x2900ffb78 >> 0x2900ffb88 >> 0x2900ffb98 >> 0x2900ffba8 >> 0x2900ffbb0 >> 0x2900ffbb8 >> 0x2900ffbc0 >> 0x2900ffbc8 >> 0x2900ffbd0 >> 0x2900ffbd8 >> >>>> As previously mentioned, the disk has actually reappeared under a different >>>> /dev/sdXX name (it was sdu, now sdbh). Trying to mount the disk (read only) >>>> results in: >>>> >>>> # mkdir /mnt/xfs && mount -ologdev=/dev/md8p5,ro /dev/sdbh1 /mnt/xfs >>>> mount: /dev/sdbh1 already mounted or /mnt/xfs busy >>> >>> Probably due to either a uuid check or blocking on access to the >>> external log device. You'll probably need to clean up the stale mount >>> before this will work. >>> >>> As it is, something is clearly wrong with the drive. I can't really >>> interpret the I/O errors and whatnot (linux-scsi?), but you probably >>> want to look into health assessment tools (e.g., smart) to get an idea >>> of what's wrong and/or replace the device and restore from backups (or >>> perhaps heal via the ceph cluster, in your case). >> >> Sure. It's not the disk that's concerning me, they're expected to die, >> but it looks like the disk error has put XFS in a state where the only >> solution is a hard power cycle (after quiescing and cleaning up what I >> can): I haven't tried it yet, but I expect I won't be able reboot >> cleanly. >> >>> >>> Brian >> >> Cheers, >> >> Chris From bfoster@redhat.com Tue Nov 17 14:21:42 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E70287F47 for ; Tue, 17 Nov 2015 14:21:41 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 64DE0AC002 for ; Tue, 17 Nov 2015 12:21:38 -0800 (PST) X-ASG-Debug-ID: 1447791692-04cbb0605deb930001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id P5Dd5ZSJ2KEKLR53 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 17 Nov 2015 12:21:33 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id AF5ABC814; Tue, 17 Nov 2015 20:21:32 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAHKLWxw004959; Tue, 17 Nov 2015 15:21:32 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 8CD36120A64; Tue, 17 Nov 2015 15:21:31 -0500 (EST) Date: Tue, 17 Nov 2015 15:21:31 -0500 From: Brian Foster To: Chris Dunlop Cc: xfs@oss.sgi.com Subject: Re: Disk error, then endless loop Message-ID: <20151117202131.GA43800@bfoster.bfoster> X-ASG-Orig-Subj: Re: Disk error, then endless loop References: <20151117080332.GA28936@onthe.net.au> <20151117124148.GA20118@bfoster.bfoster> <20151117162802.GA28374@onthe.net.au> <20151117173724.GA18963@bfoster.bfoster> <20151117193534.GA1514@onthe.net.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117193534.GA1514@onthe.net.au> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447791693 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 18, 2015 at 06:35:34AM +1100, Chris Dunlop wrote: > On Tue, Nov 17, 2015 at 12:37:24PM -0500, Brian Foster wrote: > > On Wed, Nov 18, 2015 at 03:28:02AM +1100, Chris Dunlop wrote: > >> On Tue, Nov 17, 2015 at 07:41:48AM -0500, Brian Foster wrote: > >>> On Tue, Nov 17, 2015 at 07:03:33PM +1100, Chris Dunlop wrote: > >>>> I tried to umount the filesystem but the umount is now hung and unkillable: > >>>> > >>>> # ps -ostat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount > >>>> STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD > >>>> D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 > >>> > >>> ... but it appears you still have something pending in the AIL which is > >>> holding everything up. The most likely case is an EFI/EFD item hanging > >>> around from an extent free operation, as this was a known issue, > >>> particularly on fs shutdowns. Fixes for this went into the v4.3 kernel. > >> > >> Any chance of these fixes getting into -stable, or are they too intrusive > >> and/or depend on other intrusive changes? > > > > I don't think so... it was a multi-patch series and a rework of the > > EFI/EFD reference counting as opposed to an isolated bug fix. For > > reference, it was commits 5e4b538 through f0b2efa or so. > > ... > > >>> Does the umount process actually appear to be doing anything? E.g., are > >>> you seeing noticeable CPU load or I/O errors continue to the logs, or > >>> has everything pretty much locked up? You could also enable tracepoints > >>> (trace-cmd start -e "xfs:*"; cat /sys/kernel/debug/tracing/trace_pipe) > >>> to get a quick idea of what's going on. > >> > >> No, the umount hasn't done anything noticable in the past 6.5 hours: > >> > >> b2# date; ps -opid,lstart,time,stat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount > >> Wed Nov 18 03:08:30 AEDT 2015 > >> PID STARTED TIME STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD > >> 23946 Tue Nov 17 17:30:41 2015 00:00:00 D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 > >> > >> I don't know how to interpret the tracepoints, but there are other busy > >> XFS filesystems on the box so that's cluttering things up. For what it's > >> worth, it appears the original device (/dev/sdu1) was previously dev > >> 65:65: > >> > >> b2# ls -l /dev/sd[tuv]{,1} > >> brw-rw---T 1 root disk 65, 48 Sep 16 17:11 /dev/sdt > >> brw-rw---T 1 root disk 65, 49 Sep 16 17:11 /dev/sdt1 > >> brw-rw---T 1 root disk 65, 80 Oct 30 15:38 /dev/sdv > >> brw-rw---T 1 root disk 65, 81 Oct 30 15:40 /dev/sdv1 > >> > >> ..and in 10 seconds of /sys/kernel/debug/tracing/trace_pipe we have: > >> > >> # grep 'dev 65:65' /sys/kernel/debug/tracing/trace_pipe > /tmp/x1 & sleep 10; kill $! > >> # wc -l /tmp/x1 > >> 181953 /tmp/x1 > >> # head /tmp/x1 > >> <...>-7702 [012] .... 5392362.786946: xfs_buf_item_iodone_async: dev 65:65 bno 0x1828eed18 nblks 0x8 hold 2 pincount 0 lock 0 flags ASYNC|DONE|PAGES caller xfs_buf_ioend [xfs] > >> <...>-7702 [012] .... 5392362.786946: xfs_buf_ioerror: dev 65:65 bno 0x1828eed18 len 0x1000 hold 2 pincount 0 lock 0 error 0 flags ASYNC|DONE|PAGES caller xfs_buf_iodone_callbacks [xfs] > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647059: xfs_buf_submit: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647059: xfs_buf_hold: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_rele: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 3 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_submit: dev 65:65 bno 0x280006398 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_hold: dev 65:65 bno 0x280006398 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647063: xfs_buf_rele: dev 65:65 bno 0x280006398 nblks 0x8 hold 3 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647063: xfs_buf_submit: dev 65:65 bno 0x2800063f8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647064: xfs_buf_hold: dev 65:65 bno 0x2800063f8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > >> > > > > Hmm, that is notably more activity than I recall when reproducing the > > original AIL issue. Do we know whether the filesystem had actually shut > > down or is in some intermediate state looping on errors? The fact that > > it continues to try and submit I/O suggests that perhaps it hasn't shut > > down for whatever reason. > > > > If the device has already dropped and reconnected as a new dev node, > > it's probably harmless at this point to just try to forcibly shut down > > the fs on the old one. Could you try the following? > > > > xfs_io -x -c shutdown > > # xfs_io -x -c shutdown /var/lib/ceph/osd/ceph-18 > foreign file active, shutdown command is for XFS filesystems only > > # grep ceph-18 /etc/mtab > <<< crickets >>> > > I don't know when the fs disappeared from mtab, it could have been when I > first did the umount I guess, I didn't think to check at the time. But the > umount is still there: > > # date; ps -opid,lstart,time,stat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount > Wed Nov 18 06:23:21 AEDT 2015 > PID STARTED TIME STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD > 23946 Tue Nov 17 17:30:41 2015 00:00:00 D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 > Ah, so it's already been removed from the namespace. Apparently it's stuck at some point after the mount is made inaccessible and before it actually finishes with I/O. I'm not sure we have any other option other than a reset at this point, unfortunately. :/ Brian > > Can you unmount the fs after that? If not, is there still any tracepoint > > activity on the old device? > > > > Brian > > The activity is still ongoing on the old device: > > # trace-cmd start -e "xfs:*" > /sys/kernel/debug/tracing/events/xfs/*/filter > # grep 'dev 65:65' /sys/kernel/debug/tracing/trace_pipe > /tmp/y1 & sleep 10; kill $!; wc -l /tmp/y1 > 129573 /tmp/y1 > > Doing my little sed and perl dance shows it's still the same set of 188 > blocks as mentioned before. > > Chris > > >> In the 181953 lines there's a set of 188 different block numbers > >> appearing, ranging from 0x8 to 0x2900ffbd8: > >> > >> # sed -rn 's/.*bno (0x[[:xdigit:]]+).*/\1/p' /tmp/x1 | sort -u > /tmp/x2 > >> # wc -l /tmp/x2 > >> 188 /tmp/x2 > >> # perl -pe 's/(.*)/hex($1)/e' /tmp/x2 | sort -n | perl -ne 'printf "0x%x\n",$_' > /tmp/x3 > >> # head /tmp/x3 > >> 0x8 > >> 0x10 > >> 0x20 > >> 0x28 > >> 0x3188 > >> 0x4a40 > >> 0x4a68 > >> 0x2b163a0 > >> 0x31fecd0 > >> 0x426e8f8 > >> b2# tail /tmp/x3 > >> 0x2900ffb78 > >> 0x2900ffb88 > >> 0x2900ffb98 > >> 0x2900ffba8 > >> 0x2900ffbb0 > >> 0x2900ffbb8 > >> 0x2900ffbc0 > >> 0x2900ffbc8 > >> 0x2900ffbd0 > >> 0x2900ffbd8 > >> > >>>> As previously mentioned, the disk has actually reappeared under a different > >>>> /dev/sdXX name (it was sdu, now sdbh). Trying to mount the disk (read only) > >>>> results in: > >>>> > >>>> # mkdir /mnt/xfs && mount -ologdev=/dev/md8p5,ro /dev/sdbh1 /mnt/xfs > >>>> mount: /dev/sdbh1 already mounted or /mnt/xfs busy > >>> > >>> Probably due to either a uuid check or blocking on access to the > >>> external log device. You'll probably need to clean up the stale mount > >>> before this will work. > >>> > >>> As it is, something is clearly wrong with the drive. I can't really > >>> interpret the I/O errors and whatnot (linux-scsi?), but you probably > >>> want to look into health assessment tools (e.g., smart) to get an idea > >>> of what's wrong and/or replace the device and restore from backups (or > >>> perhaps heal via the ceph cluster, in your case). > >> > >> Sure. It's not the disk that's concerning me, they're expected to die, > >> but it looks like the disk error has put XFS in a state where the only > >> solution is a hard power cycle (after quiescing and cleaning up what I > >> can): I haven't tried it yet, but I expect I won't be able reboot > >> cleanly. > >> > >>> > >>> Brian > >> > >> Cheers, > >> > >> Chris > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Nov 17 14:35:02 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0C2367F37 for ; Tue, 17 Nov 2015 14:35:02 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id EF50F304059 for ; Tue, 17 Nov 2015 12:34:58 -0800 (PST) X-ASG-Debug-ID: 1447792496-04cbb0605debca0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id UCmSgxWN8N3G9vie (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 17 Nov 2015 12:34:57 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id ADD75CC08D; Tue, 17 Nov 2015 20:34:56 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAHKYuXw018713; Tue, 17 Nov 2015 15:34:56 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 860FB120A64; Tue, 17 Nov 2015 15:34:55 -0500 (EST) Date: Tue, 17 Nov 2015 15:34:55 -0500 From: Brian Foster To: Chris Dunlop Cc: xfs@oss.sgi.com Subject: Re: Disk error, then endless loop Message-ID: <20151117203455.GB43800@bfoster.bfoster> X-ASG-Orig-Subj: Re: Disk error, then endless loop References: <20151117080332.GA28936@onthe.net.au> <20151117124148.GA20118@bfoster.bfoster> <20151117162802.GA28374@onthe.net.au> <20151117173724.GA18963@bfoster.bfoster> <20151117193534.GA1514@onthe.net.au> <20151117202131.GA43800@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117202131.GA43800@bfoster.bfoster> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447792497 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Nov 17, 2015 at 03:21:31PM -0500, Brian Foster wrote: > On Wed, Nov 18, 2015 at 06:35:34AM +1100, Chris Dunlop wrote: > > On Tue, Nov 17, 2015 at 12:37:24PM -0500, Brian Foster wrote: > > > On Wed, Nov 18, 2015 at 03:28:02AM +1100, Chris Dunlop wrote: > > >> On Tue, Nov 17, 2015 at 07:41:48AM -0500, Brian Foster wrote: > > >>> On Tue, Nov 17, 2015 at 07:03:33PM +1100, Chris Dunlop wrote: > > >>>> I tried to umount the filesystem but the umount is now hung and unkillable: > > >>>> > > >>>> # ps -ostat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount > > >>>> STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD > > >>>> D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 > > >>> > > >>> ... but it appears you still have something pending in the AIL which is > > >>> holding everything up. The most likely case is an EFI/EFD item hanging > > >>> around from an extent free operation, as this was a known issue, > > >>> particularly on fs shutdowns. Fixes for this went into the v4.3 kernel. > > >> > > >> Any chance of these fixes getting into -stable, or are they too intrusive > > >> and/or depend on other intrusive changes? > > > > > > I don't think so... it was a multi-patch series and a rework of the > > > EFI/EFD reference counting as opposed to an isolated bug fix. For > > > reference, it was commits 5e4b538 through f0b2efa or so. > > > > ... > > > > >>> Does the umount process actually appear to be doing anything? E.g., are > > >>> you seeing noticeable CPU load or I/O errors continue to the logs, or > > >>> has everything pretty much locked up? You could also enable tracepoints > > >>> (trace-cmd start -e "xfs:*"; cat /sys/kernel/debug/tracing/trace_pipe) > > >>> to get a quick idea of what's going on. > > >> > > >> No, the umount hasn't done anything noticable in the past 6.5 hours: > > >> > > >> b2# date; ps -opid,lstart,time,stat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount > > >> Wed Nov 18 03:08:30 AEDT 2015 > > >> PID STARTED TIME STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD > > >> 23946 Tue Nov 17 17:30:41 2015 00:00:00 D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 > > >> > > >> I don't know how to interpret the tracepoints, but there are other busy > > >> XFS filesystems on the box so that's cluttering things up. For what it's > > >> worth, it appears the original device (/dev/sdu1) was previously dev > > >> 65:65: > > >> > > >> b2# ls -l /dev/sd[tuv]{,1} > > >> brw-rw---T 1 root disk 65, 48 Sep 16 17:11 /dev/sdt > > >> brw-rw---T 1 root disk 65, 49 Sep 16 17:11 /dev/sdt1 > > >> brw-rw---T 1 root disk 65, 80 Oct 30 15:38 /dev/sdv > > >> brw-rw---T 1 root disk 65, 81 Oct 30 15:40 /dev/sdv1 > > >> > > >> ..and in 10 seconds of /sys/kernel/debug/tracing/trace_pipe we have: > > >> > > >> # grep 'dev 65:65' /sys/kernel/debug/tracing/trace_pipe > /tmp/x1 & sleep 10; kill $! > > >> # wc -l /tmp/x1 > > >> 181953 /tmp/x1 > > >> # head /tmp/x1 > > >> <...>-7702 [012] .... 5392362.786946: xfs_buf_item_iodone_async: dev 65:65 bno 0x1828eed18 nblks 0x8 hold 2 pincount 0 lock 0 flags ASYNC|DONE|PAGES caller xfs_buf_ioend [xfs] > > >> <...>-7702 [012] .... 5392362.786946: xfs_buf_ioerror: dev 65:65 bno 0x1828eed18 len 0x1000 hold 2 pincount 0 lock 0 error 0 flags ASYNC|DONE|PAGES caller xfs_buf_iodone_callbacks [xfs] > > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647059: xfs_buf_submit: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] > > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647059: xfs_buf_hold: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_rele: dev 65:65 bno 0x27ffffff8 nblks 0x8 hold 3 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_submit: dev 65:65 bno 0x280006398 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] > > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647061: xfs_buf_hold: dev 65:65 bno 0x280006398 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647063: xfs_buf_rele: dev 65:65 bno 0x280006398 nblks 0x8 hold 3 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647063: xfs_buf_submit: dev 65:65 bno 0x2800063f8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller __xfs_buf_delwri_submit [xfs] > > >> xfsaild/sdu1-7991 [005] .N.. 5392363.647064: xfs_buf_hold: dev 65:65 bno 0x2800063f8 nblks 0x8 hold 2 pincount 0 lock 0 flags WRITE|ASYNC|DONE|PAGES caller xfs_buf_submit [xfs] > > >> > > > > > > Hmm, that is notably more activity than I recall when reproducing the > > > original AIL issue. Do we know whether the filesystem had actually shut > > > down or is in some intermediate state looping on errors? The fact that > > > it continues to try and submit I/O suggests that perhaps it hasn't shut > > > down for whatever reason. > > > > > > If the device has already dropped and reconnected as a new dev node, > > > it's probably harmless at this point to just try to forcibly shut down > > > the fs on the old one. Could you try the following? > > > > > > xfs_io -x -c shutdown > > > > # xfs_io -x -c shutdown /var/lib/ceph/osd/ceph-18 > > foreign file active, shutdown command is for XFS filesystems only > > > > # grep ceph-18 /etc/mtab > > <<< crickets >>> > > > > I don't know when the fs disappeared from mtab, it could have been when I > > first did the umount I guess, I didn't think to check at the time. But the > > umount is still there: > > > > # date; ps -opid,lstart,time,stat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount > > Wed Nov 18 06:23:21 AEDT 2015 > > PID STARTED TIME STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD > > 23946 Tue Nov 17 17:30:41 2015 00:00:00 D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 > > > > Ah, so it's already been removed from the namespace. Apparently it's > stuck at some point after the mount is made inaccessible and before it > actually finishes with I/O. I'm not sure we have any other option other > than a reset at this point, unfortunately. :/ > > Brian > One last thought... it occurred to me that scsi devs have a delete option under the /sysfs fs. Does the old/stale device still exist under /sys/block/? If so, perhaps an 'echo 1 > /sys/block//device/delete' would move things along..? Note that I have no idea what effect that will have beyond removing the device node (so if it is still accessible now, it probably won't be after that command). I just tried it while doing I/O to a test device and it looked like it caused an fs shutdown, so it could be worth a try as a last resort before a system restart. Brian > > > Can you unmount the fs after that? If not, is there still any tracepoint > > > activity on the old device? > > > > > > Brian > > > > The activity is still ongoing on the old device: > > > > # trace-cmd start -e "xfs:*" > > /sys/kernel/debug/tracing/events/xfs/*/filter > > # grep 'dev 65:65' /sys/kernel/debug/tracing/trace_pipe > /tmp/y1 & sleep 10; kill $!; wc -l /tmp/y1 > > 129573 /tmp/y1 > > > > Doing my little sed and perl dance shows it's still the same set of 188 > > blocks as mentioned before. > > > > Chris > > > > >> In the 181953 lines there's a set of 188 different block numbers > > >> appearing, ranging from 0x8 to 0x2900ffbd8: > > >> > > >> # sed -rn 's/.*bno (0x[[:xdigit:]]+).*/\1/p' /tmp/x1 | sort -u > /tmp/x2 > > >> # wc -l /tmp/x2 > > >> 188 /tmp/x2 > > >> # perl -pe 's/(.*)/hex($1)/e' /tmp/x2 | sort -n | perl -ne 'printf "0x%x\n",$_' > /tmp/x3 > > >> # head /tmp/x3 > > >> 0x8 > > >> 0x10 > > >> 0x20 > > >> 0x28 > > >> 0x3188 > > >> 0x4a40 > > >> 0x4a68 > > >> 0x2b163a0 > > >> 0x31fecd0 > > >> 0x426e8f8 > > >> b2# tail /tmp/x3 > > >> 0x2900ffb78 > > >> 0x2900ffb88 > > >> 0x2900ffb98 > > >> 0x2900ffba8 > > >> 0x2900ffbb0 > > >> 0x2900ffbb8 > > >> 0x2900ffbc0 > > >> 0x2900ffbc8 > > >> 0x2900ffbd0 > > >> 0x2900ffbd8 > > >> > > >>>> As previously mentioned, the disk has actually reappeared under a different > > >>>> /dev/sdXX name (it was sdu, now sdbh). Trying to mount the disk (read only) > > >>>> results in: > > >>>> > > >>>> # mkdir /mnt/xfs && mount -ologdev=/dev/md8p5,ro /dev/sdbh1 /mnt/xfs > > >>>> mount: /dev/sdbh1 already mounted or /mnt/xfs busy > > >>> > > >>> Probably due to either a uuid check or blocking on access to the > > >>> external log device. You'll probably need to clean up the stale mount > > >>> before this will work. > > >>> > > >>> As it is, something is clearly wrong with the drive. I can't really > > >>> interpret the I/O errors and whatnot (linux-scsi?), but you probably > > >>> want to look into health assessment tools (e.g., smart) to get an idea > > >>> of what's wrong and/or replace the device and restore from backups (or > > >>> perhaps heal via the ceph cluster, in your case). > > >> > > >> Sure. It's not the disk that's concerning me, they're expected to die, > > >> but it looks like the disk error has put XFS in a state where the only > > >> solution is a hard power cycle (after quiescing and cleaning up what I > > >> can): I haven't tried it yet, but I expect I won't be able reboot > > >> cleanly. > > >> > > >>> > > >>> Brian > > >> > > >> Cheers, > > >> > > >> Chris > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From darrick.wong@oracle.com Tue Nov 17 15:17:51 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A77FA7F37 for ; Tue, 17 Nov 2015 15:17:51 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8A1CD8F8050 for ; Tue, 17 Nov 2015 13:17:48 -0800 (PST) X-ASG-Debug-ID: 1447795066-04cbb0605eecab0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id o85968mC2tz5Xmol (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 17 Nov 2015 13:17:46 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tAHLGkvu010062 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 17 Nov 2015 21:16:46 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tAHLGjVv011578 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Tue, 17 Nov 2015 21:16:45 GMT Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by userv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tAHLGj2H031659; Tue, 17 Nov 2015 21:16:45 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 17 Nov 2015 13:16:45 -0800 Date: Tue, 17 Nov 2015 13:16:43 -0800 From: "Darrick J. Wong" To: Dave Chinner Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [PATCH 01/12] test-scripts: test migration scripts Message-ID: <20151117211643.GF2217@birch.djwong.org> X-ASG-Orig-Subj: Re: [PATCH 01/12] test-scripts: test migration scripts References: <20151113213643.31124.80975.stgit@birch.djwong.org> <20151113213650.31124.16817.stgit@birch.djwong.org> <20151116205845.GK14311@dastard> <20151116235111.GE2224@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151116235111.GE2224@birch.djwong.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447795066 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24482 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Mon, Nov 16, 2015 at 03:51:11PM -0800, Darrick J. Wong wrote: > On Tue, Nov 17, 2015 at 07:58:45AM +1100, Dave Chinner wrote: > > On Fri, Nov 13, 2015 at 01:36:50PM -0800, Darrick J. Wong wrote: > > > Add two scripts: "nextid" finds the next available test ID number in a > > > group, and "mvtest" relocates a test, fixes the golden output, and > > > moves the group entry for that test. > > > > > > Signed-off-by: Darrick J. Wong > > > --- > > > mvtest | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > > nextid | 35 +++++++++++++++++++++++++++++++++++ > > > > These should be placed in the "tools" directory. > > > > > > > > create mode 100755 mvtest > > > create mode 100755 nextid > > > > > > > > > diff --git a/mvtest b/mvtest > > > new file mode 100755 > > > index 0000000..b5406d1 > > > --- /dev/null > > > +++ b/mvtest > > > @@ -0,0 +1,58 @@ > > > +#!/bin/sh > > > + > > > +# Renumber a test > > > + > > > +if [ -z "$1" ] || [ "$1" = "--help" ]; then > > > + echo "Usage: $0 path_to_test new_path_to_test" > > > + exit 1 > > > +fi > > > + > > > +src="$1" > > > +dest="$2" > > > + > > > +die() { > > > + echo "$@" > > > + exit 1 > > > +} > > > + > > > +nsort() { > > > + sort -g < "$1" > "$2" > > > +} > > > + > > > +append() { > > > + out="$1" > > > + shift > > > + echo "$@" >> "${out}" > > > +} > > > + > > > +test "${src}" != "${dest}" || die "Test \"${src}\" is the same as dest." > > > +test -e "tests/${src}" || die "Test \"${src}\" does not exist." > > > +test ! -e "tests/${dest}" || die "Test \"${src}\" already exists." > > > + > > > +sid="$(basename "${src}")" > > > +did="$(basename "${dest}")" > > > + > > > +sgroup="$(basename "$(dirname "tests/${src}")")" > > > +dgroup="$(basename "$(dirname "tests/${dest}")")" > > > + > > > +sgroupfile="tests/${sgroup}/group" > > > +dgroupfile="tests/${sgroup}/group" > > > + > > > +$DBG git mv "tests/${src}" "tests/${dest}" > > > > $DBG? > > "DBG=echo ./mvtest foo bar" to see what it would have run, more or less. > > (I suppose I could getopt a --dry-run, but I could also just get rid of them.) > > > > > .... > > > +$DBG sed -e "/^${sid}.*$/d" -i "${sgroupfile}" > > > +$DBG cp "${dgroupfile}" "${dgroupfile}.new" > > > +$DBG append "${dgroupfile}.new" "${newgrpline}" > > > +$DBG nsort "${dgroupfile}.new" "${dgroupfile}" > > > > What does this do to comments in the group file? > > Eats them. I don't know of a good way to sort just the uncommented lines > in the file, short of writing a python script to do that. > > I guess it's not that hard; I've sort of needed one here and there over > the years, but never wrote one, and $google doesn't immediately provide > any such thing. > > > > > ... > > > > > diff --git a/nextid b/nextid > > > new file mode 100755 > > > index 0000000..285b549 > > > --- /dev/null > > > +++ b/nextid > > > @@ -0,0 +1,35 @@ > > > +#!/bin/sh > > > + > > > +# Given a group name, find the next available test number. > > > + > > > +if [ -z "$1" ] || [ "$1" = "--help" ]; then > > > + echo "Usage: $0 groupname[/start_looking_at_this_number]" > > > + exit 1 > > > +fi > > > + > > > +die() { > > > + echo "$@" > > > + exit 1 > > > +} > > > + > > > +if [ "$(basename "$1")" != "$1" ]; then > > > + group="$(dirname "$1")" > > > + id="$(basename "$1")" > > > +else > > > + group="$1" > > > + id=1 > > > +fi > > > +test -e "tests/${group}/group" || die "Unknown group \"${group}\"." > > > + > > > +while test "${id}" -lt 1000; do > > > + name="$(printf "%.03d" "${id}")" > > > + if [ ! -e "tests/${group}/${name}" ]; then > > > + echo "${group}/${name}" > > > + exit 0 > > > + fi > > > + id=$((id + 1)) > > > +done > > > + > > > +echo "No free IDs less than ${id} in group \"${group}\"." > > > > So the "new" script does this differently, by reading the group > > file and looking for the first non-contiguous ID in the file. It > > doesn't need scan ID limits because EOF triggers that. Wouldn't it > > be better to to factor the code out of the "new" script to find the > > next id, and then have the new script call that? > > Sure! In the end I wrote a short Python program to sort group files and it wasn't much harder to reuse the code to implement nextid, so I did that instead. I'll probably post this and a patch to fix the error codes in generic/157 later this week. --D > > --D > > > > > Cheers, > > > > Dave. > > -- > > Dave Chinner > > david@fromorbit.com > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs > -- > To unsubscribe from this list: send the line "unsubscribe fstests" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html From chris@onthe.net.au Tue Nov 17 16:16:19 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 068E87F37 for ; Tue, 17 Nov 2015 16:16:19 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id EA0D98F8050 for ; Tue, 17 Nov 2015 14:16:15 -0800 (PST) X-ASG-Debug-ID: 1447798573-04cbb0605beda20001-NocioJ Received: from smtp1.onthe.net.au (smtp1.onthe.net.au [203.22.196.249]) by cuda.sgi.com with ESMTP id YoO2uY1RAK7T1LLv for ; Tue, 17 Nov 2015 14:16:13 -0800 (PST) X-Barracuda-Envelope-From: chris@onthe.net.au X-Barracuda-Apparent-Source-IP: 203.22.196.249 Received: from localhost (localhost [127.0.0.1]) by smtp1.onthe.net.au (Postfix) with ESMTP id 8C918617CA; Wed, 18 Nov 2015 09:16:12 +1100 (EST) Received: from smtp1.onthe.net.au ([127.0.0.1]) by localhost (smtp1.onthe.net.au [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id T5rijo6RvOSY; Wed, 18 Nov 2015 09:16:12 +1100 (EST) Received: from o1.private.otn.net.au (o1.private.onthe.net.au [10.200.63.41]) by smtp1.onthe.net.au (Postfix) with ESMTP id DB7EF617DA; Wed, 18 Nov 2015 09:16:11 +1100 (EST) Received: from hestia (pony.office.onthe.net.au [10.9.1.6]) by o1.private.otn.net.au (Postfix) with ESMTP id C70B1E1280; Wed, 18 Nov 2015 09:16:10 +1100 (AEDT) Received: by hestia (Postfix, from userid 1000) id 348DA580730; Wed, 18 Nov 2015 09:16:09 +1100 (AEDT) Date: Wed, 18 Nov 2015 09:16:09 +1100 From: Chris Dunlop To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: Disk error, then endless loop Message-ID: <20151117221609.GA3563@onthe.net.au> X-ASG-Orig-Subj: Re: Disk error, then endless loop References: <20151117080332.GA28936@onthe.net.au> <20151117124148.GA20118@bfoster.bfoster> <20151117162802.GA28374@onthe.net.au> <20151117173724.GA18963@bfoster.bfoster> <20151117193534.GA1514@onthe.net.au> <20151117202131.GA43800@bfoster.bfoster> <20151117203455.GB43800@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117203455.GB43800@bfoster.bfoster> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: smtp1.onthe.net.au[203.22.196.249] X-Barracuda-Start-Time: 1447798573 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24485 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Nov 17, 2015 at 03:34:55PM -0500, Brian Foster wrote: > On Tue, Nov 17, 2015 at 03:21:31PM -0500, Brian Foster wrote: >> On Wed, Nov 18, 2015 at 06:35:34AM +1100, Chris Dunlop wrote: >>> On Tue, Nov 17, 2015 at 12:37:24PM -0500, Brian Foster wrote: >>>> If the device has already dropped and reconnected as a new dev node, >>>> it's probably harmless at this point to just try to forcibly shut down >>>> the fs on the old one. Could you try the following? >>>> >>>> xfs_io -x -c shutdown >>> >>> # xfs_io -x -c shutdown /var/lib/ceph/osd/ceph-18 >>> foreign file active, shutdown command is for XFS filesystems only >>> >>> # grep ceph-18 /etc/mtab >>> <<< crickets >>> >>> >>> I don't know when the fs disappeared from mtab, it could have been when I >>> first did the umount I guess, I didn't think to check at the time. But the >>> umount is still there: >>> >>> # date; ps -opid,lstart,time,stat,wchan='WCHAN-xxxxxxxxxxxxxxxxxx',cmd -C umount >>> Wed Nov 18 06:23:21 AEDT 2015 >>> PID STARTED TIME STAT WCHAN-xxxxxxxxxxxxxxxxxx CMD >>> 23946 Tue Nov 17 17:30:41 2015 00:00:00 D+ xfs_ail_push_all_sync umount /var/lib/ceph/osd/ceph-18 >> >> Ah, so it's already been removed from the namespace. Apparently it's >> stuck at some point after the mount is made inaccessible and before it >> actually finishes with I/O. I'm not sure we have any other option other >> than a reset at this point, unfortunately. :/ Yes, I thought this would likely be the case. > One last thought... it occurred to me that scsi devs have a delete > option under the /sysfs fs. Does the old/stale device still exist under > /sys/block/? If so, perhaps an 'echo 1 > > /sys/block//device/delete' would move things along..? Unfortunately, no, it's not there. > Note that I have no idea what effect that will have beyond removing the > device node (so if it is still accessible now, it probably won't be > after that command). I just tried it while doing I/O to a test device > and it looked like it caused an fs shutdown, so it could be worth a try > as a last resort before a system restart. > > Brian Thanks again, Chris From octavian.purdila@intel.com Tue Nov 17 16:46:54 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D55377F37 for ; Tue, 17 Nov 2015 16:46:54 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7684F8F8040 for ; Tue, 17 Nov 2015 14:46:54 -0800 (PST) X-ASG-Debug-ID: 1447800412-04cb6c0cd2c9ef0001-NocioJ Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by cuda.sgi.com with ESMTP id P3xu5pwiSdtG9lgf for ; Tue, 17 Nov 2015 14:46:52 -0800 (PST) X-Barracuda-Envelope-From: octavian.purdila@intel.com X-Barracuda-Apparent-Source-IP: 134.134.136.65 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga103.jf.intel.com with ESMTP; 17 Nov 2015 14:46:40 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,310,1444719600"; d="scan'208";a="853325849" Received: from mhakkine-mobl1.ger.corp.intel.com (HELO opurdila-mobl.ger.corp.intel.com) ([10.252.22.26]) by fmsmga002.fm.intel.com with ESMTP; 17 Nov 2015 14:46:36 -0800 From: Octavian Purdila To: xfs@oss.sgi.com Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Octavian Purdila Subject: [RFC PATCH] xfs: support for non-mmu architectures Date: Wed, 18 Nov 2015 00:46:21 +0200 X-ASG-Orig-Subj: [RFC PATCH] xfs: support for non-mmu architectures Message-Id: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> X-Mailer: git-send-email 1.9.1 X-Barracuda-Connect: mga03.intel.com[134.134.136.65] X-Barracuda-Start-Time: 1447800412 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24486 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Naive implementation for non-mmu architectures: allocate physically contiguous xfs buffers with alloc_pages. Terribly inefficient with memory and fragmentation on high I/O loads but it may be good enough for basic usage (which most non-mmu architectures will need). This patch was tested with lklfuse [1] and basic operations seems to work even with 16MB allocated for LKL. [1] https://github.com/lkl/linux Signed-off-by: Octavian Purdila --- fs/xfs/xfs_buf.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 8ecffb3..50b5246 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -261,6 +261,7 @@ xfs_buf_free( ASSERT(list_empty(&bp->b_lru)); if (bp->b_flags & _XBF_PAGES) { +#ifdef CONFIG_MMU uint i; if (xfs_buf_is_vmapped(bp)) @@ -272,6 +273,10 @@ xfs_buf_free( __free_page(page); } +#else + free_pages((unsigned long)page_to_virt(bp->b_pages[0]), + order_base_2(bp->b_page_count)); +#endif } else if (bp->b_flags & _XBF_KMEM) kmem_free(bp->b_addr); _xfs_buf_free_pages(bp); @@ -338,7 +343,14 @@ use_alloc_page: struct page *page; uint retries = 0; retry: +#ifdef CONFIG_MMU page = alloc_page(gfp_mask); +#else + if (i == 0) + page = alloc_pages(gfp_mask, order_base_2(page_count)); + else + page = bp->b_pages[0] + i; +#endif if (unlikely(page == NULL)) { if (flags & XBF_READ_AHEAD) { bp->b_page_count = i; @@ -372,8 +384,11 @@ retry: return 0; out_free_pages: +#ifdef CONFIG_MMU for (i = 0; i < bp->b_page_count; i++) __free_page(bp->b_pages[i]); +#endif + return error; } @@ -392,6 +407,7 @@ _xfs_buf_map_pages( } else if (flags & XBF_UNMAPPED) { bp->b_addr = NULL; } else { +#ifdef CONFIG_MMU int retried = 0; unsigned noio_flag; @@ -412,6 +428,9 @@ _xfs_buf_map_pages( vm_unmap_aliases(); } while (retried++ <= 1); memalloc_noio_restore(noio_flag); +#else + bp->b_addr = page_to_virt(bp->b_pages[0]); +#endif if (!bp->b_addr) return -ENOMEM; @@ -816,11 +835,19 @@ xfs_buf_get_uncached( if (error) goto fail_free_buf; +#ifdef CONFIG_MMU for (i = 0; i < page_count; i++) { bp->b_pages[i] = alloc_page(xb_to_gfp(flags)); if (!bp->b_pages[i]) goto fail_free_mem; } +#else + bp->b_pages[0] = alloc_pages(flags, order_base_2(page_count)); + if (!bp->b_pages[0]) + goto fail_free_buf; + for (i = 1; i < page_count; i++) + bp->b_pages[i] = bp->b_pages[i-1] + 1; +#endif bp->b_flags |= _XBF_PAGES; error = _xfs_buf_map_pages(bp, 0); -- 1.9.1 From fzcorpedu@yandex.ru Tue Nov 17 17:15:52 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BAF707F37 for ; Tue, 17 Nov 2015 17:15:52 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id AA39E8F8050 for ; Tue, 17 Nov 2015 15:15:49 -0800 (PST) X-ASG-Debug-ID: 1447802142-04cbb0605dee9c0001-NocioJ Received: from mx.yandex.ru (63-156-59-27.dia.static.qwest.net [63.156.59.27]) by cuda.sgi.com with ESMTP id YNFWOoPRzt1yZsO5 for ; Tue, 17 Nov 2015 15:15:43 -0800 (PST) X-Barracuda-Envelope-From: fzcorpedu@yandex.ru X-Barracuda-Apparent-Source-IP: 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0JLRhdC+0LTQuNGCINC80LXRgtC+0LTQuNGH0LXRgdC60LjQuSDQvNCw0YLQtdGA0LjQsNC7LCDQ vtCx0LXQtNGLLCDQutC+0YTQtS3Qv9Cw0YPQt9GLLjxicj4gwqA8L3A+PC90ZD48dGQ+wqA8L3Rk Pjx0ZCBiZ2NvbG9yPSIjZTBkYmQ4Ij7CoDwvdGQ+PHRkIGJnY29sb3I9IiNjZmM2YzAiPsKgPC90 ZD48dGQgYmdjb2xvcj0iI2JmYjFhYSI+wqA8L3RkPjwvdHI+PHRyPjx0ZCBiZ2NvbG9yPSIjYmZi MWFhIj7CoDwvdGQ+PHRkIGJnY29sb3I9IiNlZWVhZTgiPsKgPC90ZD48dGQ+wqA8L3RkPjx0ZCBi Z2NvbG9yPSIjZWVlYWU4Ij7CoDwvdGQ+PHRkPsKgPC90ZD48dGQgYmdjb2xvcj0iI2UwZGJkOCI+ wqA8L3RkPjx0ZCBiZ2NvbG9yPSIjY2ZjNmMwIj7CoDwvdGQ+PHRkIGJnY29sb3I9IiNiZmIxYWEi PsKgPC90ZD48L3RyPjwvdGJvZHk+PC90YWJsZT48L2Rpdj48L2Rpdj4NCg== ------------61B07C5EF5E261EA2-- From darrick.wong@oracle.com Tue Nov 17 21:02:24 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 345567F37 for ; Tue, 17 Nov 2015 21:02:24 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id B791DAC005 for ; Tue, 17 Nov 2015 19:02:20 -0800 (PST) X-ASG-Debug-ID: 1447815735-04cb6c0cd4cd840001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id npWPCJPgZSGU3s1o (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 17 Nov 2015 19:02:15 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tAI31IaF001701 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 18 Nov 2015 03:01:19 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tAI31Idi016621 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 18 Nov 2015 03:01:18 GMT Received: from abhmp0011.oracle.com (abhmp0011.oracle.com [141.146.116.17]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tAI31Ixq006821; Wed, 18 Nov 2015 03:01:18 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 17 Nov 2015 19:01:18 -0800 Date: Tue, 17 Nov 2015 19:01:17 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Cc: Chris Mason , xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org Subject: Re: clone ioctl return values Message-ID: <20151118030117.GA26143@birch.djwong.org> X-ASG-Orig-Subj: Re: clone ioctl return values References: <20151116120431.GA2860@infradead.org> <20151117002822.GA32467@birch.djwong.org> <20151117105433.GA18093@infradead.org> <20151117135745.GF17545@ret.masoncoding.com> <20151117152251.GA5392@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117152251.GA5392@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1447815735 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24496 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Tue, Nov 17, 2015 at 07:22:52AM -0800, Christoph Hellwig wrote: > On Tue, Nov 17, 2015 at 08:57:45AM -0500, Chris Mason wrote: > > > > Errrgh, the golden output of this test reflects the changes to the input > > > > checking in Anna/Peng's copy_file_range/clone_file_range patches. > > > > > > > > So, I guess the question is, should I reset the golden output to whatever > > > > btrfs spits out before that patchset, and we'll consider the alterations > > > > to be bugs/regressions/whatever that ought to be fixed in their patches? > > > > > > Some bits in btrfs don't seem kosher. But it would be good to > > > explicitly send patches for btrfs to adopt to what might make more > > > sense, and then follow it in the other implementations. > > > > Btrfs does check for directories, but we should really be checking for > > regular files too. In the end, we only copy extents that would > > correspond with regular files, so we're sneaking by. > > Yes, I saw that. So so far I'd suggest something like the following > for btrfs: > > - return EBADFD for missing read/wite permissions Current btrfs returns EINVAL if the file isn't open for writing or is append-only. I think EBADF captures the situation here better and it's what Anna is pushing for copy_file_range. We can make the change, but generic/157 will fail on old kernels if we do this. I don't have a problem with 157 failing on old kernels; we can backport the change to them, or note that ioctls are murky anyway. > - return EINVAL for wrong non-directory file types as the > source fd > And then make the test case and other implementations match this. > > Does this sound like a plan? Yes. One other thing I noticed -- prior to Anna's patchset, trying to invoke the reflink ioctl with a device, pipe, or socket as the destination could return a variety of error codes (-ENOTTY, -EINVAL, -ENOIOCTLCMD, etc.) which has all been replaced with -EOPNOTSUPP. That seems like a reasonable direction to take the test case. Does this seem like a reasonable addition to the plan? Should invalid inputs to the dedupe ioctl return the same error codes as the same invalid inputs to the reflink ioctl? I've been working on patches to hoist EXTENT_SAME to the VFS. --D > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From obsrctvzjinm@qualitynet.net Tue Nov 17 21:42:30 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.1 required=5.0 tests=FROM_LOCAL_NOVOWEL, HK_RANDOM_ENVFROM,HK_RANDOM_FROM,HTML_MESSAGE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7C4CF7F37 for ; Tue, 17 Nov 2015 21:42:30 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id BE858AC003 for ; Tue, 17 Nov 2015 19:42:29 -0800 (PST) X-ASG-Debug-ID: 1447818142-04cbb0605bf2ee0001-NocioJ Received: from smtp2.qualitynet.net (simcloud.local 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X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.53 X-Barracuda-Spam-Status: No, SCORE=2.53 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=FROM_LOCAL_NOVOWEL, HTML_MESSAGE, K2_FROM_LOCAL_NOVOWEL X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24496 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message 0.20 FROM_LOCAL_NOVOWEL From: localpart has series of non-vowel letters 2.33 K2_FROM_LOCAL_NOVOWEL From: localpart has series of non-vowel letters Ýòî — ñîîáùåíèå èç íåñêîëüêèõ ÷àñòåé â ôîðìàòå MIME. ------=_NextPart_000_00A4_01D121CC.4601C0A0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable =20 =20 =D0=9D=D0=90=D0=A3=D0=A7=D0=98=D0=A2=D0=95=D0=A1=D0=AC = =D0=93=D0=9E=D0=A1=D0=97=D0=90=D0=9A=D0=A3=D0=9F=D0=9A=D0=90=D0=9C = =D0=9F=D0=9E 44-=D0=A4=D0=97! =D0=9E=D0=91=D0=A3=D0=A7=D0=90=D0=99=D0=A2=D0=95=D0=A1=D0=AC = =D0=92 =D0=A3=D0=94=D0=9E=D0=91=D0=9D=D0=9E=D0=95 =D0=94=D0=9B=D0=AF = =D0=92=D0=90=D0=A1 =D0=92=D0=A0=D0=95=D0=9C=D0=AF =D0=98 =D0=92 = =D0=A3=D0=94=D0=9E=D0=91=D0=9D=D0=9E=D0=9C = =D0=9C=D0=95=D0=A1=D0=A2=D0=95! =D0=9F=D1=80=D0=BE=D0=B9=D0=B4=D0=B8=D1=82=D0=B5 = =D0=B4=D0=B8=D1=81=D1=82=D0=B0=D0=BD=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0=BE=D0= =B5 =D0=BF=D0=BE=D0=B2=D1=8B=D1=88=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BA=D0=B2=D0=B0=D0=BB=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=86=D0=B8=D0=B8 = =D0=BF=D0=BE =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B0=D0=BC =D0=B2 = =D0=B0=D0=BA=D0=BA=D1=80=D0=B5=D0=B4=D0=B8=D1=82=D0=BE=D0=B2=D0=B0=D0=BD=D0= =BD=D0=BE=D0=BC =D0=A3=D1=87=D0=B5=D0=B1=D0=BD=D0=BE=D0=BC =D1=86=D0=B5=D0=BD=D1=82=D1=80=D0=B5 =D0=BF=D0=BE = =D0=B0=D0=B2=D1=82=D0=BE=D1=80=D1=81=D0=BA=D0=BE=D0=B9 = =D0=BF=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D0=B5 =D0=B8 = =D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B8=D1=82=D0=B5 = =D0=BA=D0=B0=D1=87=D0=B5=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D0=B5 = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 =D1=81 = =D0=B2=D1=8B=D0=B4=D0=B0=D1=87=D0=B5=D0=B9 = =D1=83=D0=B4=D0=BE=D1=81=D1=82=D0=BE=D0=B2=D0=B5=D1=80=D0=B5=D0=BD=D0=B8=D1= =8F = =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=BD=D0=BE=D0= =B3=D0=BE =D0=BE=D0=B1=D1=80=D0=B0=D0=B7=D1=86=D0=B0. =D0=94=D0=B0=D1=82=D1=8B = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B1=D0=BB=D0=B8=D0=B6=D0=B0=D0=B9=D1=88=D0=B8=D1=85 = =D0=B3=D1=80=D1=83=D0=BF=D0=BF: =D1=81 30 = =D0=BD=D0=BE=D1=8F=D0=B1=D1=80=D1=8F =D0=BF=D0=BE 18 = =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F = _________________________________________________________________________= ___________ =D0=A3=D0=9F=D0=A0=D0=90=D0=92=D0=9B=D0=95=D0=9D=D0=98=D0=95 = =D0=93=D0=9E=D0=A1=D0=A3=D0=94=D0=90=D0=A0=D0=A1=D0=A2=D0=92=D0=95=D0=9D=D0= =9D=D0=AB=D0=9C=D0=98 =D0=98 = =D0=9C=D0=A3=D0=9D=D0=98=D0=A6=D0=98=D0=9F=D0=90=D0=9B=D0=AC=D0=9D=D0=AB=D0= =9C=D0=98 =D0=97=D0=90=D0=9A=D0=A3=D0=9F=D0=9A=D0=90=D0=9C=D0=98 = (=D0=9A=D0=9E=D0=9D=D0=A2=D0=A0=D0=90=D0=9A=D0=A2=D0=9D=D0=90=D0=AF = =D0=A1=D0=98=D0=A1=D0=A2=D0=95=D0=9C=D0=90 =D0=92 = =D0=A1=D0=A4=D0=95=D0=A0=D0=95 = =D0=97=D0=90=D0=9A=D0=A3=D0=9F=D0=9E=D0=9A = =D0=A2=D0=9E=D0=92=D0=90=D0=A0=D0=9E=D0=92, = =D0=A0=D0=90=D0=91=D0=9E=D0=A2, =D0=A3=D0=A1=D0=9B=D0=A3=D0=93) =D0=92 = =D0=A1=D0=9E=D0=9E=D0=A2=D0=92=D0=95=D0=A2=D0=A1=D0=A2=D0=92=D0=98=D0=98 = =D0=A1 = =D0=A4=D0=95=D0=94=D0=95=D0=A0=D0=90=D0=9B=D0=AC=D0=9D=D0=AB=D0=9C = =D0=97=D0=90=D0=9A=D0=9E=D0=9D=D0=9E=D0=9C =E2=84=96 44-=D0=A4=D0=97 = =D0=9E=D0=A2 05.04.2013. =D0=A1=D1=80=D0=BE=D0=BA = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F - 3 = =D0=BD=D0=B5=D0=B4=D0=B5=D0=BB=D0=B8.=20 = =D0=9F=D1=80=D0=BE=D0=B4=D0=BE=D0=BB=D0=B6=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D0= =BD=D0=BE=D1=81=D1=82=D1=8C =D0=BA=D1=83=D1=80=D1=81=D0=B0 144 = =D1=87=D0=B0=D1=81=D0=B0. =D0=A1=D1=83=D0=BC=D0=BC=D0=B0 = =D1=83=D0=BA=D0=B0=D0=B7=D0=B0=D0=BD=D0=B0 =D0=B7=D0=B0 = =D0=B2=D0=B5=D1=81=D1=8C =D0=BA=D1=83=D1=80=D1=81 = =D0=B7=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D0=B9 - 17' 000 =D1=80=D1=83=D0=B1. =D0=9F=D0=BE=D0=BB=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D0=BE=D0=B2: = =D0=BB=D0=B8=D1=87=D0=BD=D0=BE =D0=B8=D0=BB=D0=B8 = =D0=BF=D0=BE=D1=87=D1=82=D0=BE=D0=B2=D1=8B=D0=BC = =D0=BE=D1=82=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=BD=D0=B0 =D0=92=D0=B0=D1=88 =D0=B2=D1=8B=D0=B1=D0=BE=D1=80. =D0=92=D1=81=D1=8F = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D1=8F = =D0=BF=D0=BE =D0=B4=D0=B0=D0=BD=D0=BD=D0=BE=D0=BC=D1=83 = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8E =D0=B8 = =D0=B7=D0=B0=D1=8F=D0=B2=D0=BA=D0=B8 =D0=BD=D0=B0 = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=B8=D0=B5 = =D0=BF=D1=80=D0=B8=D0=BD=D0=B8=D0=BC=D0=B0=D1=8E=D1=82=D1=81=D1=8F = =D0=BF=D0=BE =D1=82=D0=B5=D0=BB=D0=B5=D1=84=D0=BE=D0=BD=D1=83:=20 8 =D0=BA=D0=BE=D0=B4 =D0=B3=D0=BE=D1=80=D0=BE=D0=B4=D0=B0 = =D0=9C=D0=BE=D1=81=D0=BA=D0=B2=D1=8B ( 4 9 5 ) =D1=82=D0=B5=D0=BB.: = 411-9=D0=9E-98 = (=D0=BC=D0=BD=D0=BE=D0=B3=D0=BE=D0=BA=D0=B0=D0=BD=D0=B0=D0=BB=D1=8C=D0=BD= =D1=8B=D0=B9) = _________________________________________________________________________= __________ = =D0=94=D0=B8=D1=81=D1=82=D0=B0=D0=BD=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0=B0=D1= =8F =D1=84=D0=BE=D1=80=D0=BC=D0=B0 = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BF=D0=BE=D0=B7=D0=B2=D0=BE=D0=BB=D1=8F=D0=B5=D1=82 = =D0=BB=D1=8E=D0=B1=D0=BE=D0=BC=D1=83 = =D1=81=D0=BB=D1=83=D1=88=D0=B0=D1=82=D0=B5=D0=BB=D1=8E = =D0=B1=D0=B5=D0=B7 =D0=BE=D1=82=D1=80=D1=8B=D0=B2=D0=B0 =D0=BE=D1=82 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D1=8B, =D0=B1=D0=B5=D0=B7 =D1=84=D0=B8=D0=BD=D0=B0=D0=BD=D1=81=D0=BE=D0=B2=D1=8B=D1=85 = =D0=B8 =D0=B2=D1=80=D0=B5=D0=BC=D0=B5=D0=BD=D0=BD=D1=8B=D1=85 = =D0=B7=D0=B0=D1=82=D1=80=D0=B0=D1=82 =D0=BD=D0=B0 = =D0=BA=D0=BE=D0=BC=D0=B0=D0=BD=D0=B4=D0=B8=D1=80=D0=BE=D0=B2=D0=BA=D0=B8 = =D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B8=D1=82=D1=8C = =D0=BF=D0=BE=D0=BB=D0=BD=D1=8B=D0=B9 =D0=BE=D0=B1=D1=8A=D0=B5=D0=BC = =D0=B7=D0=BD=D0=B0=D0=BD=D0=B8=D0=B9 =D0=BF=D0=BE = =D1=82=D0=B5=D0=BC=D0=B5 =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F =D0=B8 = =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82 =D0=BE = =D0=BF=D0=BE=D0=B2=D1=8B=D1=88=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=BA=D0=B2=D0=B0=D0=BB=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=86=D0=B8=D0=B8.= =D0=94=D0=BE=D1=81=D1=82=D0=B0=D1=82=D0=BE=D1=87=D0=BD=D0=BE = =D0=BD=D0=B0=D0=BB=D0=B8=D1=87=D0=B8=D1=8F = =D0=BA=D0=BE=D0=BC=D0=BF=D1=8C=D1=8E=D1=82=D0=B5=D1=80=D0=B0 =D1=81 = =D0=B4=D0=BE=D1=81=D1=82=D1=83=D0=BF=D0=BE=D0=BC =D0=B2 =D0=98=D0=BD=D1=82=D0=B5=D1=80=D0=BD=D0=B5=D1=82, = =D0=B1=D0=B5=D0=B7 = =D0=B4=D0=BE=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1= =8B=D1=85 =D0=BF=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC =D0=B8 = =D0=BD=D0=B0=D1=81=D1=82=D1=80=D0=BE=D0=B5=D0=BA. = =D0=9E=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B2=D0=BE=D0=B7=D0=BC=D0=BE=D0=B6=D0=BD=D0=BE, = =D0=BD=D0=B0=D1=85=D0=BE=D0=B4=D1=8F=D1=81=D1=8C =D0=B2 = =D0=BB=D1=8E=D0=B1=D0=BE=D0=BC =D1=80=D0=B5=D0=B3=D0=B8=D0=BE=D0=BD=D0=B5 = =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B8! =D0=9F=D0=BE =D0=B8=D1=82=D0=BE=D0=B3=D0=B0=D0=BC = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D1=81=D0=BB=D1=83=D1=88=D0=B0=D1=82=D0=B5=D0=BB=D0=B8 = =D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B0=D1=8E=D1=82 = =D0=A3=D0=B4=D0=BE=D1=81=D1=82=D0=BE=D0=B2=D0=B5=D1=80=D0=B5=D0=BD=D0=B8=D0= =B5 =D0=BE =D0=BF=D0=BE=D0=B2=D1=8B=D1=88=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=BA=D0=B2=D0=B0=D0=BB=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=86=D0=B8=D0=B8.= = =D0=A3=D0=B4=D0=BE=D1=81=D1=82=D0=BE=D0=B2=D0=B5=D1=80=D0=B5=D0=BD=D0=B8=D0= =B5 =D0=B4=D0=B0=D0=B5=D1=82 = =D1=81=D0=BF=D0=B5=D1=86=D0=B8=D0=B0=D0=BB=D0=B8=D1=81=D1=82=D0=B0=D0=BC = =D0=BF=D1=80=D0=B0=D0=B2=D0=BE =D0=B1=D1=8B=D1=82=D1=8C = =D1=87=D0=BB=D0=B5=D0=BD=D0=BE=D0=BC =D0=B8=D0=BB=D0=B8 = =D0=BF=D1=80=D0=B5=D0=B4=D1=81=D0=B5=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D0=B5=D0= =BC =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D1=87=D0=BD=D1=8B=D1=85 = =D0=BA=D0=BE=D0=BC=D0=B8=D1=81=D1=81=D0=B8=D0=B9, =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=BC = =D0=B8=D0=BB=D0=B8 = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =BC =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=BB=D1=83=D0=B6=D0=B1=D1=8B, = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D1=8B=D0=BC = =D1=83=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D1=8F=D1=8E=D1=89=D0=B8=D0=BC. =20 =20 =D0=9F=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D0=B0: =20 =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 1. = =D0=9E=D1=81=D0=BD=D0=BE=D0=B2=D1=8B = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D1=8B. = =D0=97=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=BE =D0=A0=D0=A4 =D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5. =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 2. = =D0=98=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0= =BE=D0=B5 = =D0=BE=D0=B1=D0=B5=D1=81=D0=BF=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D1=8B. =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 3. = =D0=9F=D0=BB=D0=B0=D0=BD=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=B2 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5. =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 4. = =D0=9E=D0=B1=D1=89=D0=B8=D0=B5 = =D1=82=D1=80=D0=B5=D0=B1=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F =D0=BA = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1= =8E =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=B2 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5. =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 5. = =D0=9E=D0=BF=D1=80=D0=B5=D0=B4=D0=B5=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D1=89=D0=B8=D0=BA=D0=B0 = (=D0=BF=D0=BE=D0=B4=D1=80=D1=8F=D0=B4=D1=87=D0=B8=D0=BA=D0=B0, = =D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D1=8F) = =D0=BF=D1=83=D1=82=D0=B5=D0=BC = =D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BA=D0=BE=D0=BD=D0=BA=D1=83=D1=80=D1=81=D0=B0. =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 6. = =D0=AD=D0=BB=D0=B5=D0=BA=D1=82=D1=80=D0=BE=D0=BD=D0=BD=D1=8B=D0=B9 = =D0=B0=D1=83=D0=BA=D1=86=D0=B8=D0=BE=D0=BD. =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 7. = =D0=97=D0=B0=D0=BF=D1=80=D0=BE=D1=81 = =D0=BA=D0=BE=D1=82=D0=B8=D1=80=D0=BE=D0=B2=D0=BE=D0=BA. =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 8. = =D0=97=D0=B0=D0=BF=D1=80=D0=BE=D1=81 = =D0=BF=D1=80=D0=B5=D0=B4=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D0=B9. =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 9. = =D0=97=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8 =D1=83 = =D0=B5=D0=B4=D0=B8=D0=BD=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D0=B3=D0= =BE =D0=BF=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D1=89=D0=B8=D0=BA=D0=B0 = (=D0=BF=D0=BE=D0=B4=D1=80=D1=8F=D0=B4=D1=87=D0=B8=D0=BA=D0=B0, = =D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D1=8F). =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 10. = =D0=9E=D1=81=D0=BE=D0=B1=D0=B5=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0=B8 = =D0=BE=D1=82=D0=B4=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D1=85 = =D0=B2=D0=B8=D0=B4=D0=BE=D0=B2 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA. =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 11. = =D0=93=D0=BE=D1=81=D1=83=D0=B4=D0=B0=D1=80=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0= =BD=D1=8B=D0=B9 =D0=B8 = =D0=BC=D1=83=D0=BD=D0=B8=D1=86=D0=B8=D0=BF=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0= =B9 =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82. =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 12. = =D0=9A=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8C, = =D0=BC=D0=BE=D0=BD=D0=B8=D1=82=D0=BE=D1=80=D0=B8=D0=BD=D0=B3 =D0=B8 = =D0=B0=D1=83=D0=B4=D0=B8=D1=82 =D0=B2 =D1=81=D1=84=D0=B5=D1=80=D0=B5 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA. = =D0=9E=D0=B1=D0=B6=D0=B0=D0=BB=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5. = =D0=90=D0=B4=D0=BC=D0=B8=D0=BD=D0=B8=D1=81=D1=82=D1=80=D0=B0=D1=82=D0=B8=D0= =B2=D0=BD=D0=B0=D1=8F = =D0=BF=D1=80=D0=B0=D0=BA=D1=82=D0=B8=D0=BA=D0=B0 =D0=A4=D0=90=D0=A1. = =D0=9E=D1=82=D0=B2=D0=B5=D1=82=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D1= =81=D1=82=D1=8C =D0=BF=D0=BE =D0=9A=D0=BE=D0=90=D0=9F. =20 =20 = =D0=9F=D1=80=D0=B5=D0=B8=D0=BC=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=B0:= * = =D0=95=D0=B6=D0=B5=D0=BC=D0=B5=D1=81=D1=8F=D1=87=D0=BD=D0=B0=D1=8F = =D0=B0=D0=BA=D1=82=D1=83=D0=B0=D0=BB=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D1=8F = =D0=B8=D0=B7=D1=83=D1=87=D0=B0=D0=B5=D0=BC=D0=BE=D0=B3=D0=BE = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB=D0=B0 =D0=BF=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5. * =D0=9D=D0=B0=D0=B3=D0=BB=D1=8F=D0=B4=D0=BD=D0=BE=D0=B5 =D0=B8 = =D0=B4=D0=BE=D1=81=D1=82=D1=83=D0=BF=D0=BD=D0=BE=D0=B5 = =D0=BF=D1=80=D0=B5=D0=B4=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B5 =D0=B8=D0=B7=D1=83=D1=87=D0=B0=D0=B5=D0=BC=D0=BE=D0=B3=D0=BE = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB=D0=B0 =D0=B2 = =D0=B2=D0=B8=D0=B4=D0=B5 =D0=BA=D1=80=D0=B0=D1=82=D0=BA=D0=BE=D0=B9 = =D0=BF=D1=80=D0=B5=D0=B7=D0=B5=D0=BD=D1=82=D0=B0=D1=86=D0=B8=D0=B8 = =D1=81 =D0=B8=D0=B7=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=BD=D1=8B=D1=85 = =D0=BF=D0=BE=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D0=B9 =D0=B8 = =D0=B0=D0=BB=D0=B3=D0=BE=D1=80=D0=B8=D1=82=D0=BC=D0=BE=D0=B2 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D1=8B = =D0=BD=D0=B0=D1=80=D1=8F=D0=B4=D1=83 =D1=81 = =D0=BF=D0=BE=D0=B4=D1=80=D0=BE=D0=B1=D0=BD=D1=8B=D0=BC = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D1=8B=D0=BC = =D0=BE=D0=B1=D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5=D0=BC.= * =D0=90=D0=BA=D1=86=D0=B5=D0=BD=D1=82 =D0=BD=D0=B0 = =D0=BF=D1=80=D0=B0=D0=BA=D1=82=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D0=B5 = =D0=B2=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D1=8B, = =D0=BA=D0=B5=D0=B9=D1=81=D1=8B =D1=81 = =D0=BF=D0=BE=D0=B4=D1=80=D0=BE=D0=B1=D0=BD=D1=8B=D0=BC = =D0=BE=D1=82=D0=B2=D0=B5=D1=82=D0=BE=D0=BC =D0=B8 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D1=8B=D0=BC = =D0=BE=D0=B1=D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5=D0=BC.= * = =D0=92=D0=BE=D0=B7=D0=BC=D0=BE=D0=B6=D0=BD=D0=BE=D1=81=D1=82=D1=8C = =D1=81=D0=B0=D0=BC=D0=BE=D1=81=D1=82=D0=BE=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0= =BD=D0=BE =D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D1=80=D0=B8=D1=82=D1=8C = =D1=81=D0=B2=D0=BE=D0=B8 =D0=B7=D0=BD=D0=B0=D0=BD=D0=B8=D1=8F =D0=B8 = =D0=B2=D0=B5=D1=80=D0=BD=D1=83=D1=82=D1=8C=D1=81=D1=8F =D0=BA = =D0=B8=D0=B7=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8E = =D0=BD=D0=B0=D0=B8=D0=B1=D0=BE=D0=BB=D0=B5=D0=B5 =D1=81=D0=BB=D0=BE=D0=B6=D0=BD=D1=8B=D1=85 = =D0=B2=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D0=BE=D0=B2 =D0=B2 = =D0=BB=D1=8E=D0=B1=D0=BE=D0=B5 = =D1=83=D0=B4=D0=BE=D0=B1=D0=BD=D0=BE=D0=B5 =D0=B4=D0=BB=D1=8F = =D1=81=D0=BB=D1=83=D1=88=D0=B0=D1=82=D0=B5=D0=BB=D1=8F = =D0=B2=D1=80=D0=B5=D0=BC=D1=8F. * =D0=9F=D0=BE=D1=81=D1=82=D0=BE=D1=8F=D0=BD=D0=BD=D0=BE=D0=B5 = =D0=BD=D0=B0 = =D0=BF=D1=80=D0=BE=D1=82=D1=8F=D0=B6=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F =D0=B8 = =D0=BF=D0=BE=D1=81=D0=BB=D0=B5=D0=B4=D1=83=D1=8E=D1=89=D0=B5=D0=B5 = =D1=81=D0=BE=D0=BF=D1=80=D0=BE=D0=B2=D0=BE=D0=B6=D0=B4=D0=B5=D0=BD=D0=B8=D0= =B5 =D1=81=D0=BB=D1=83=D1=88=D0=B0=D1=82=D0=B5=D0=BB=D1=8F = =D1=8D=D0=BA=D1=81=D0=BF=D0=B5=D1=80=D1=82=D0=B0=D0=BC=D0=B8- =D0=BF=D1=80=D0=B0=D0=BA=D1=82=D0=B8=D0=BA=D0=B0=D0=BC=D0=B8, = =D1=81 = =D0=BF=D0=B8=D1=81=D1=8C=D0=BC=D0=B5=D0=BD=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=BE=D1=82=D0=B2=D0=B5=D1=82=D0=B0=D0=BC=D0=B8 =D0=BD=D0=B0 = =D0=B8=D0=BD=D1=82=D0=B5=D1=80=D0=B5=D1=81=D1=83=D1=8E=D1=89=D0=B8=D0=B5 = =D1=81=D0=BB=D1=83=D1=88=D0=B0=D1=82=D0=B5=D0=BB=D1=8F = =D0=B2=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D1=8B =D0=B8 = =D0=B5=D0=B6=D0=B5=D0=BC=D0=B5=D1=81=D1=8F=D1=87=D0=BD=D0=BE=D0=B9 =D1=80=D0=B0=D1=81=D1=81=D1=8B=D0=BB=D0=BA=D0=BE=D0=B9 = =D0=BD=D0=BE=D0=B2=D0=BE=D1=81=D1=82=D0=BD=D1=8B=D1=85 = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB=D0=BE=D0=B2 =D0=B8 = =D0=BA=D0=BE=D0=BC=D0=BC=D0=B5=D0=BD=D1=82=D0=B0=D1=80=D0=B8=D0=B5=D0=BC = =D1=81=D0=BF=D0=B5=D1=86=D0=B8=D0=B0=D0=BB=D0=B8=D1=81=D1=82=D0=BE=D0=B2 = =D0=BF=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5. * =D0=9F=D0=BB=D0=B0=D1=82=D1=84=D0=BE=D1=80=D0=BC=D0=B0 = =D0=B4=D0=BB=D1=8F = =D0=B4=D0=B8=D1=81=D1=82=D0=B0=D0=BD=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0=BE=D0= =B3=D0=BE =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F =D0=BD=D0=B5 = =D1=82=D1=80=D0=B5=D0=B1=D1=83=D0=B5=D1=82 = =D1=81=D0=BF=D0=B5=D1=86=D0=B8=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D1=85 = =D0=B7=D0=BD=D0=B0=D0=BD=D0=B8=D0=B9, = =D0=B7=D0=B0=D0=B3=D1=80=D1=83=D0=B6=D0=B0=D0=B5=D1=82=D1=81=D1=8F = =D0=B2 =D0=BE=D0=B1=D1=8B=D1=87=D0=BD=D1=8B=D0=B9 = =D0=B1=D1=80=D0=B0=D1=83=D0=B7=D0=B5=D1=80 =D0=B8 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B0=D0=B5=D1=82 =D0=B1=D0=B5=D0=B7 = =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BA=D0=B8 = =D0=B4=D0=BE=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1= =8B=D1=85 =D0=BF=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC. =20 =20 ------=_NextPart_000_00A4_01D121CC.4601C0A0 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
         
 


=D0=9D=D0=90=D0=A3=D0=A7=D0=98=D0=A2=D0=95=D0=A1=D0=AC=20 =D0=93=D0=9E=D0=A1=D0=97=D0=90=D0=9A=D0=A3=D0=9F=D0=9A=D0=90=D0=9C = =D0=9F=D0=9E = 44-=D0=A4=D0=97!
=D0=9E=D0=91=D0=A3=D0=A7=D0=90=D0=99=D0=A2=D0=95=D0=A1= =D0=AC =D0=92 =D0=A3=D0=94=D0=9E=D0=91=D0=9D=D0=9E=D0=95 = =D0=94=D0=9B=D0=AF =D0=92=D0=90=D0=A1 =D0=92=D0=A0=D0=95=D0=9C=D0=AF = =D0=98 =D0=92 =D0=A3=D0=94=D0=9E=D0=91=D0=9D=D0=9E=D0=9C=20 =D0=9C=D0=95=D0=A1=D0=A2=D0=95!
=D0=9F=D1=80=D0=BE=D0=B9=D0=B4=D0=B8=D1=82=D0=B5 = =D0=B4=D0=B8=D1=81=D1=82=D0=B0=D0=BD=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0=BE=D0= =B5 =D0=BF=D0=BE=D0=B2=D1=8B=D1=88=D0=B5=D0=BD=D0=B8=D0=B5=20 = =D0=BA=D0=B2=D0=B0=D0=BB=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=86=D0=B8=D0=B8 = =D0=BF=D0=BE =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B0=D0=BC =D0=B2 = =D0=B0=D0=BA=D0=BA=D1=80=D0=B5=D0=B4=D0=B8=D1=82=D0=BE=D0=B2=D0=B0=D0=BD=D0= =BD=D0=BE=D0=BC = =D0=A3=D1=87=D0=B5=D0=B1=D0=BD=D0=BE=D0=BC
=D1=86=D0=B5=D0=BD=D1=82=D1= =80=D0=B5 =D0=BF=D0=BE = =D0=B0=D0=B2=D1=82=D0=BE=D1=80=D1=81=D0=BA=D0=BE=D0=B9=20 =D0=BF=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D0=B5 =D0=B8 = =D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B8=D1=82=D0=B5 = =D0=BA=D0=B0=D1=87=D0=B5=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D0=B5 = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 =D1=81 = =D0=B2=D1=8B=D0=B4=D0=B0=D1=87=D0=B5=D0=B9=20 = =D1=83=D0=B4=D0=BE=D1=81=D1=82=D0=BE=D0=B2=D0=B5=D1=80=D0=B5=D0=BD=D0=B8=D1= =8F
=D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=BD= =D0=BE=D0=B3=D0=BE = =D0=BE=D0=B1=D1=80=D0=B0=D0=B7=D1=86=D0=B0.

=D0=94=D0=B0=D1=82=D1=8B = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B1=D0=BB=D0=B8=D0=B6=D0=B0=D0=B9=D1=88=D0=B8=D1=85 = =D0=B3=D1=80=D1=83=D0=BF=D0=BF: =D1=81 = 30 =D0=BD=D0=BE=D1=8F=D0=B1=D1=80=D1=8F =D0=BF=D0=BE 18=20 = =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F

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=D0=A3=D0=9F=D0=A0=D0=90=D0=92=D0=9B=D0=95=D0=9D=D0=98=D0=95 = =D0=93=D0=9E=D0=A1=D0=A3=D0=94=D0=90=D0=A0=D0=A1=D0=A2=D0=92=D0=95=D0=9D=D0= =9D=D0=AB=D0=9C=D0=98 =D0=98=20 = =D0=9C=D0=A3=D0=9D=D0=98=D0=A6=D0=98=D0=9F=D0=90=D0=9B=D0=AC=D0=9D=D0=AB=D0= =9C=D0=98 = =D0=97=D0=90=D0=9A=D0=A3=D0=9F=D0=9A=D0=90=D0=9C=D0=98
(=D0=9A=D0=9E=D0= =9D=D0=A2=D0=A0=D0=90=D0=9A=D0=A2=D0=9D=D0=90=D0=AF = =D0=A1=D0=98=D0=A1=D0=A2=D0=95=D0=9C=D0=90 =D0=92 = =D0=A1=D0=A4=D0=95=D0=A0=D0=95 = =D0=97=D0=90=D0=9A=D0=A3=D0=9F=D0=9E=D0=9A = =D0=A2=D0=9E=D0=92=D0=90=D0=A0=D0=9E=D0=92,=20 =D0=A0=D0=90=D0=91=D0=9E=D0=A2, = =D0=A3=D0=A1=D0=9B=D0=A3=D0=93)
=D0=92 = =D0=A1=D0=9E=D0=9E=D0=A2=D0=92=D0=95=D0=A2=D0=A1=D0=A2=D0=92=D0=98=D0=98 = =D0=A1 = =D0=A4=D0=95=D0=94=D0=95=D0=A0=D0=90=D0=9B=D0=AC=D0=9D=D0=AB=D0=9C = =D0=97=D0=90=D0=9A=D0=9E=D0=9D=D0=9E=D0=9C =E2=84=96 44-=D0=A4=D0=97 = =D0=9E=D0=A2=20 05.04.2013.

=D0=A1=D1=80=D0=BE=D0=BA = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F - 3 = =D0=BD=D0=B5=D0=B4=D0=B5=D0=BB=D0=B8.=20 =

=D0=9F=D1=80=D0=BE=D0=B4=D0=BE=D0=BB=D0=B6=D0=B8=D1=82=D0=B5=D0=BB= =D1=8C=D0=BD=D0=BE=D1=81=D1=82=D1=8C =D0=BA=D1=83=D1=80=D1=81=D0=B0 144 = =D1=87=D0=B0=D1=81=D0=B0.

=D0=A1=D1=83=D0=BC=D0=BC=D0=B0 = =D1=83=D0=BA=D0=B0=D0=B7=D0=B0=D0=BD=D0=B0 =D0=B7=D0=B0 = =D0=B2=D0=B5=D1=81=D1=8C=20 =D0=BA=D1=83=D1=80=D1=81 = =D0=B7=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D0=B9 - 17' 000 = =D1=80=D1=83=D0=B1.

=D0=9F=D0=BE=D0=BB=D1=83=D1=87=D0=B5=D0=BD=D0=B8= =D0=B5=20 =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D0=BE=D0=B2: = =D0=BB=D0=B8=D1=87=D0=BD=D0=BE =D0=B8=D0=BB=D0=B8 = =D0=BF=D0=BE=D1=87=D1=82=D0=BE=D0=B2=D1=8B=D0=BC = =D0=BE=D1=82=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=BD=D0=B0 =D0=92=D0=B0=D1=88=20 =D0=B2=D1=8B=D0=B1=D0=BE=D1=80.

=D0=92=D1=81=D1=8F = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D1=8F = =D0=BF=D0=BE =D0=B4=D0=B0=D0=BD=D0=BD=D0=BE=D0=BC=D1=83 = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8E =D0=B8 = =D0=B7=D0=B0=D1=8F=D0=B2=D0=BA=D0=B8 =D0=BD=D0=B0=20 =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=B8=D0=B5 = =D0=BF=D1=80=D0=B8=D0=BD=D0=B8=D0=BC=D0=B0=D1=8E=D1=82=D1=81=D1=8F = =D0=BF=D0=BE =D1=82=D0=B5=D0=BB=D0=B5=D1=84=D0=BE=D0=BD=D1=83: =

8  =D0=BA=D0=BE=D0=B4 =D0=B3=D0=BE=D1=80=D0=BE=D0=B4=D0=B0=20 =D0=9C=D0=BE=D1=81=D0=BA=D0=B2=D1=8B  ( = 4 9 5 )  =D1=82=D0=B5=D0=BB.:  411-9=D0=9E-98  (=D0=BC=D0=BD=D0=BE=D0=B3=D0=BE=D0=BA=D0=B0=D0=BD=D0=B0=D0=BB=D1= =8C=D0=BD=D1=8B=D0=B9)

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=D0=94=D0=B8=D1=81=D1=82=D0=B0=D0=BD= =D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0=B0=D1=8F=20 =D1=84=D0=BE=D1=80=D0=BC=D0=B0 = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BF=D0=BE=D0=B7=D0=B2=D0=BE=D0=BB=D1=8F=D0=B5=D1=82 = =D0=BB=D1=8E=D0=B1=D0=BE=D0=BC=D1=83 = =D1=81=D0=BB=D1=83=D1=88=D0=B0=D1=82=D0=B5=D0=BB=D1=8E = =D0=B1=D0=B5=D0=B7 =D0=BE=D1=82=D1=80=D1=8B=D0=B2=D0=B0 =D0=BE=D1=82 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D1=8B,=20 = =D0=B1=D0=B5=D0=B7
=D1=84=D0=B8=D0=BD=D0=B0=D0=BD=D1=81=D0=BE=D0=B2=D1= =8B=D1=85 =D0=B8 =D0=B2=D1=80=D0=B5=D0=BC=D0=B5=D0=BD=D0=BD=D1=8B=D1=85 = =D0=B7=D0=B0=D1=82=D1=80=D0=B0=D1=82 =D0=BD=D0=B0 = =D0=BA=D0=BE=D0=BC=D0=B0=D0=BD=D0=B4=D0=B8=D1=80=D0=BE=D0=B2=D0=BA=D0=B8 = =D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B8=D1=82=D1=8C = =D0=BF=D0=BE=D0=BB=D0=BD=D1=8B=D0=B9 =D0=BE=D0=B1=D1=8A=D0=B5=D0=BC=20 =D0=B7=D0=BD=D0=B0=D0=BD=D0=B8=D0=B9 =D0=BF=D0=BE = =D1=82=D0=B5=D0=BC=D0=B5
=D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1= =8F =D0=B8 =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82 =D0=BE = =D0=BF=D0=BE=D0=B2=D1=8B=D1=88=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=BA=D0=B2=D0=B0=D0=BB=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=86=D0=B8=D0=B8.= =D0=94=D0=BE=D1=81=D1=82=D0=B0=D1=82=D0=BE=D1=87=D0=BD=D0=BE=20 =D0=BD=D0=B0=D0=BB=D0=B8=D1=87=D0=B8=D1=8F = =D0=BA=D0=BE=D0=BC=D0=BF=D1=8C=D1=8E=D1=82=D0=B5=D1=80=D0=B0 =D1=81 = =D0=B4=D0=BE=D1=81=D1=82=D1=83=D0=BF=D0=BE=D0=BC = =D0=B2
=D0=98=D0=BD=D1=82=D0=B5=D1=80=D0=BD=D0=B5=D1=82, = =D0=B1=D0=B5=D0=B7 = =D0=B4=D0=BE=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1= =8B=D1=85 =D0=BF=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC =D0=B8=20 =D0=BD=D0=B0=D1=81=D1=82=D1=80=D0=BE=D0=B5=D0=BA. = =D0=9E=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B2=D0=BE=D0=B7=D0=BC=D0=BE=D0=B6=D0=BD=D0=BE, = =D0=BD=D0=B0=D1=85=D0=BE=D0=B4=D1=8F=D1=81=D1=8C =D0=B2 = =D0=BB=D1=8E=D0=B1=D0=BE=D0=BC
=D1=80=D0=B5=D0=B3=D0=B8=D0=BE=D0=BD=D0= =B5=20 =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B8!

=D0=9F=D0=BE = =D0=B8=D1=82=D0=BE=D0=B3=D0=B0=D0=BC = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D1=81=D0=BB=D1=83=D1=88=D0=B0=D1=82=D0=B5=D0=BB=D0=B8 = =D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B0=D1=8E=D1=82 = =D0=A3=D0=B4=D0=BE=D1=81=D1=82=D0=BE=D0=B2=D0=B5=D1=80=D0=B5=D0=BD=D0=B8=D0= =B5=20 =D0=BE =D0=BF=D0=BE=D0=B2=D1=8B=D1=88=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=BA=D0=B2=D0=B0=D0=BB=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=86=D0=B8=D0=B8.=
=D0=A3=D0=B4=D0=BE=D1=81=D1=82=D0=BE=D0=B2=D0=B5=D1=80=D0=B5=D0=BD=D0= =B8=D0=B5 =D0=B4=D0=B0=D0=B5=D1=82 = =D1=81=D0=BF=D0=B5=D1=86=D0=B8=D0=B0=D0=BB=D0=B8=D1=81=D1=82=D0=B0=D0=BC = =D0=BF=D1=80=D0=B0=D0=B2=D0=BE =D0=B1=D1=8B=D1=82=D1=8C=20 =D1=87=D0=BB=D0=B5=D0=BD=D0=BE=D0=BC =D0=B8=D0=BB=D0=B8 = =D0=BF=D1=80=D0=B5=D0=B4=D1=81=D0=B5=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D0=B5=D0= =BC =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D1=87=D0=BD=D1=8B=D1=85 = =D0=BA=D0=BE=D0=BC=D0=B8=D1=81=D1=81=D0=B8=D0=B9,
=D1=80=D0=B0=D0=B1=D0= =BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=BC =D0=B8=D0=BB=D0=B8=20 = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =BC =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=BB=D1=83=D0=B6=D0=B1=D1=8B, = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D1=8B=D0=BC=20 = =D1=83=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D1=8F=D1=8E=D1=89=D0=B8=D0=BC.
 

      
 

=D0=9F=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D0=B0:

      
  =D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C = 1. =D0=9E=D1=81=D0=BD=D0=BE=D0=B2=D1=8B = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D1=8B.=20 = =D0=97=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=BE =D0=A0=D0=A4 =D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5.
=D0=9C=D0=BE=D0=B4=D1=83= =D0=BB=D1=8C 2.=20 = =D0=98=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0= =BE=D0=B5 = =D0=BE=D0=B1=D0=B5=D1=81=D0=BF=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D1=8B.
=D0=9C=D0=BE=D0=B4=D1=83= =D0=BB=D1=8C 3.=20 = =D0=9F=D0=BB=D0=B0=D0=BD=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=B2 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5.
=D0=9C=D0=BE=D0=B4=D1=83= =D0=BB=D1=8C 4. =D0=9E=D0=B1=D1=89=D0=B8=D0=B5=20 =D1=82=D1=80=D0=B5=D0=B1=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F = =D0=BA = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1= =8E =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=B2 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5.
=D0=9C=D0=BE=D0=B4=D1=83= =D0=BB=D1=8C=20 5. = =D0=9E=D0=BF=D1=80=D0=B5=D0=B4=D0=B5=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D1=89=D0=B8=D0=BA=D0=B0 = (=D0=BF=D0=BE=D0=B4=D1=80=D1=8F=D0=B4=D1=87=D0=B8=D0=BA=D0=B0, = =D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D1=8F) = =D0=BF=D1=83=D1=82=D0=B5=D0=BC = =D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F=20 = =D0=BA=D0=BE=D0=BD=D0=BA=D1=83=D1=80=D1=81=D0=B0.
=D0=9C=D0=BE=D0=B4= =D1=83=D0=BB=D1=8C 6. = =D0=AD=D0=BB=D0=B5=D0=BA=D1=82=D1=80=D0=BE=D0=BD=D0=BD=D1=8B=D0=B9 = =D0=B0=D1=83=D0=BA=D1=86=D0=B8=D0=BE=D0=BD.
=D0=9C=D0=BE=D0=B4=D1=83= =D0=BB=D1=8C 7.=20 =D0=97=D0=B0=D0=BF=D1=80=D0=BE=D1=81 = =D0=BA=D0=BE=D1=82=D0=B8=D1=80=D0=BE=D0=B2=D0=BE=D0=BA.
=D0=9C=D0=BE= =D0=B4=D1=83=D0=BB=D1=8C 8. =D0=97=D0=B0=D0=BF=D1=80=D0=BE=D1=81 = =D0=BF=D1=80=D0=B5=D0=B4=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D0=B9.
=D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C=20 9. =D0=97=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8 =D1=83 = =D0=B5=D0=B4=D0=B8=D0=BD=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D0=B3=D0= =BE =D0=BF=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D1=89=D0=B8=D0=BA=D0=B0 = (=D0=BF=D0=BE=D0=B4=D1=80=D1=8F=D0=B4=D1=87=D0=B8=D0=BA=D0=B0,=20 = =D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D1=8F).
<= B>=D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D1=8C 10. = =D0=9E=D1=81=D0=BE=D0=B1=D0=B5=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0=B8 = =D0=BE=D1=82=D0=B4=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D1=85 = =D0=B2=D0=B8=D0=B4=D0=BE=D0=B2=20 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA.
=D0=9C=D0=BE=D0=B4=D1=83= =D0=BB=D1=8C 11. = =D0=93=D0=BE=D1=81=D1=83=D0=B4=D0=B0=D1=80=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0= =BD=D1=8B=D0=B9 =D0=B8 = =D0=BC=D1=83=D0=BD=D0=B8=D1=86=D0=B8=D0=BF=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0= =B9=20 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82.
=D0=9C=D0=BE=D0=B4= =D1=83=D0=BB=D1=8C 12. = =D0=9A=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8C, = =D0=BC=D0=BE=D0=BD=D0=B8=D1=82=D0=BE=D1=80=D0=B8=D0=BD=D0=B3 =D0=B8 = =D0=B0=D1=83=D0=B4=D0=B8=D1=82 =D0=B2 =D1=81=D1=84=D0=B5=D1=80=D0=B5=20 =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA. = =D0=9E=D0=B1=D0=B6=D0=B0=D0=BB=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5. = =D0=90=D0=B4=D0=BC=D0=B8=D0=BD=D0=B8=D1=81=D1=82=D1=80=D0=B0=D1=82=D0=B8=D0= =B2=D0=BD=D0=B0=D1=8F
          =           =20 =D0=BF=D1=80=D0=B0=D0=BA=D1=82=D0=B8=D0=BA=D0=B0 = =D0=A4=D0=90=D0=A1. = =D0=9E=D1=82=D0=B2=D0=B5=D1=82=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D1= =81=D1=82=D1=8C =D0=BF=D0=BE = =D0=9A=D0=BE=D0=90=D0=9F.

 		      
         
  =D0=9F=D1=80=D0=B5=D0=B8=D0=BC=D1=83=D1=89=D0=B5=D1=81=D1=82=D0= =B2=D0=B0:
* = =D0=95=D0=B6=D0=B5=D0=BC=D0=B5=D1=81=D1=8F=D1=87=D0=BD=D0=B0=D1=8F= =20 = =D0=B0=D0=BA=D1=82=D1=83=D0=B0=D0=BB=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D1=8F = =D0=B8=D0=B7=D1=83=D1=87=D0=B0=D0=B5=D0=BC=D0=BE=D0=B3=D0=BE = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB=D0=B0 =D0=BF=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5.
* = =D0=9D=D0=B0=D0=B3=D0=BB=D1=8F=D0=B4=D0=BD=D0=BE=D0=B5 =D0=B8=20 =D0=B4=D0=BE=D1=81=D1=82=D1=83=D0=BF=D0=BD=D0=BE=D0=B5 = =D0=BF=D1=80=D0=B5=D0=B4=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B5 =D0=B8=D0=B7=D1=83=D1=87=D0=B0=D0=B5=D0=BC=D0=BE=D0=B3=D0=BE = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB=D0=B0 =D0=B2 = =D0=B2=D0=B8=D0=B4=D0=B5 =D0=BA=D1=80=D0=B0=D1=82=D0=BA=D0=BE=D0=B9 = =D0=BF=D1=80=D0=B5=D0=B7=D0=B5=D0=BD=D1=82=D0=B0=D1=86=D0=B8=D0=B8=20 =D1=81
   = =D0=B8=D0=B7=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=BD=D1=8B=D1=85 = =D0=BF=D0=BE=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D0=B9 =D0=B8=20 =D0=B0=D0=BB=D0=B3=D0=BE=D1=80=D0=B8=D1=82=D0=BC=D0=BE=D0=B2 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D1=8B = =D0=BD=D0=B0=D1=80=D1=8F=D0=B4=D1=83 =D1=81 = =D0=BF=D0=BE=D0=B4=D1=80=D0=BE=D0=B1=D0=BD=D1=8B=D0=BC
   = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D1=8B=D0=BC= = =D0=BE=D0=B1=D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5=D0=BC.=
* = =D0=90=D0=BA=D1=86=D0=B5=D0=BD=D1=82 =D0=BD=D0=B0=20 = =D0=BF=D1=80=D0=B0=D0=BA=D1=82=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D0=B5 = =D0=B2=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D1=8B, = =D0=BA=D0=B5=D0=B9=D1=81=D1=8B =D1=81 = =D0=BF=D0=BE=D0=B4=D1=80=D0=BE=D0=B1=D0=BD=D1=8B=D0=BC = =D0=BE=D1=82=D0=B2=D0=B5=D1=82=D0=BE=D0=BC =D0=B8 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D1=8B=D0=BC=20 = =D0=BE=D0=B1=D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5=D0=BC.=
*=20 = =D0=92=D0=BE=D0=B7=D0=BC=D0=BE=D0=B6=D0=BD=D0=BE=D1=81=D1=82=D1=8C= = =D1=81=D0=B0=D0=BC=D0=BE=D1=81=D1=82=D0=BE=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0= =BD=D0=BE =D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D1=80=D0=B8=D1=82=D1=8C = =D1=81=D0=B2=D0=BE=D0=B8 =D0=B7=D0=BD=D0=B0=D0=BD=D0=B8=D1=8F =D0=B8 = =D0=B2=D0=B5=D1=80=D0=BD=D1=83=D1=82=D1=8C=D1=81=D1=8F =D0=BA=20 =D0=B8=D0=B7=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8E = =D0=BD=D0=B0=D0=B8=D0=B1=D0=BE=D0=BB=D0=B5=D0=B5
   = =D1=81=D0=BB=D0=BE=D0=B6=D0=BD=D1=8B=D1=85 = =D0=B2=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D0=BE=D0=B2=20 =D0=B2 =D0=BB=D1=8E=D0=B1=D0=BE=D0=B5 = =D1=83=D0=B4=D0=BE=D0=B1=D0=BD=D0=BE=D0=B5 =D0=B4=D0=BB=D1=8F = =D1=81=D0=BB=D1=83=D1=88=D0=B0=D1=82=D0=B5=D0=BB=D1=8F = =D0=B2=D1=80=D0=B5=D0=BC=D1=8F.
* = =D0=9F=D0=BE=D1=81=D1=82=D0=BE=D1=8F=D0=BD=D0=BD=D0=BE=D0=B5 = =D0=BD=D0=B0 = =D0=BF=D1=80=D0=BE=D1=82=D1=8F=D0=B6=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F =D0=B8=20 =D0=BF=D0=BE=D1=81=D0=BB=D0=B5=D0=B4=D1=83=D1=8E=D1=89=D0=B5=D0=B5 = =D1=81=D0=BE=D0=BF=D1=80=D0=BE=D0=B2=D0=BE=D0=B6=D0=B4=D0=B5=D0=BD=D0=B8=D0= =B5 =D1=81=D0=BB=D1=83=D1=88=D0=B0=D1=82=D0=B5=D0=BB=D1=8F = =D1=8D=D0=BA=D1=81=D0=BF=D0=B5=D1=80=D1=82=D0=B0=D0=BC=D0=B8-
   = =D0=BF=D1=80=D0=B0=D0=BA=D1=82=D0=B8=D0=BA=D0=B0=D0=BC=D0=B8, = =D1=81 = =D0=BF=D0=B8=D1=81=D1=8C=D0=BC=D0=B5=D0=BD=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=BE=D1=82=D0=B2=D0=B5=D1=82=D0=B0=D0=BC=D0=B8 =D0=BD=D0=B0=20 = =D0=B8=D0=BD=D1=82=D0=B5=D1=80=D0=B5=D1=81=D1=83=D1=8E=D1=89=D0=B8=D0=B5 = =D1=81=D0=BB=D1=83=D1=88=D0=B0=D1=82=D0=B5=D0=BB=D1=8F = =D0=B2=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D1=8B =D0=B8 = =D0=B5=D0=B6=D0=B5=D0=BC=D0=B5=D1=81=D1=8F=D1=87=D0=BD=D0=BE=D0=B9
   = =D1=80=D0=B0=D1=81=D1=81=D1=8B=D0=BB=D0=BA=D0=BE=D0=B9 = =D0=BD=D0=BE=D0=B2=D0=BE=D1=81=D1=82=D0=BD=D1=8B=D1=85 = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB=D0=BE=D0=B2 =D0=B8=20 = =D0=BA=D0=BE=D0=BC=D0=BC=D0=B5=D0=BD=D1=82=D0=B0=D1=80=D0=B8=D0=B5=D0=BC = =D1=81=D0=BF=D0=B5=D1=86=D0=B8=D0=B0=D0=BB=D0=B8=D1=81=D1=82=D0=BE=D0=B2 = =D0=BF=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5.
* = =D0=9F=D0=BB=D0=B0=D1=82=D1=84=D0=BE=D1=80=D0=BC=D0=B0 = =D0=B4=D0=BB=D1=8F=20 = =D0=B4=D0=B8=D1=81=D1=82=D0=B0=D0=BD=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0=BE=D0= =B3=D0=BE =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D1=8F =D0=BD=D0=B5 = =D1=82=D1=80=D0=B5=D0=B1=D1=83=D0=B5=D1=82 = =D1=81=D0=BF=D0=B5=D1=86=D0=B8=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D1=85 = =D0=B7=D0=BD=D0=B0=D0=BD=D0=B8=D0=B9, = =D0=B7=D0=B0=D0=B3=D1=80=D1=83=D0=B6=D0=B0=D0=B5=D1=82=D1=81=D1=8F=20 =D0=B2
   = =D0=BE=D0=B1=D1=8B=D1=87=D0=BD=D1=8B=D0=B9 = =D0=B1=D1=80=D0=B0=D1=83=D0=B7=D0=B5=D1=80 =D0=B8 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=B0=D0=B5=D1=82 =D0=B1=D0=B5=D0=B7=20 =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BA=D0=B8 = =D0=B4=D0=BE=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1= =8B=D1=85 =D0=BF=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC.		      
         
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charset="utf-8" Content-Transfer-Encoding: quoted-printable =20 =D0=9F =D1=80 =D0=BE =D0=BC =D0=BE =D0=BA =D0=BE =D0=B4 : 256=20 =20 = =D0=90=D0=BA=D0=BA=D1=80=D0=B5=D0=B4=D0=B8=D1=82=D0=BE=D0=B2=D0=B0=D0=BD=D0= =BD=D1=8B=D0=B9 =D0=A3=D1=87=D0=B5=D0=B1=D0=BD=D1=8B=D0=B9 = =D1=86=D0=B5=D0=BD=D1=82=D1=80 = =D0=BF=D1=80=D0=B8=D0=B3=D0=BB=D0=B0=D1=88=D0=B0=D0=B5=D1=82 = =D0=BD=D0=B0 =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5: =D0=A6=D0=B5=D0=BB=D1=8C = =D0=B7=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D1=8F: = =D0=BE=D0=B1=D1=81=D1=83=D0=B4=D0=B8=D1=82=D1=8C = =D0=B0=D0=BA=D1=82=D1=83=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B5 = =D0=B2=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D1=8B, = =D0=B8=D0=BC=D0=B5=D1=8E=D1=89=D0=B8=D0=B5 = =D0=BF=D1=80=D0=B0=D0=BA=D1=82=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D1=83=D1=8E = =D0=BD=D0=B0=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0=BD=D0=BE=D1=81=D1= =82=D1=8C =D0=B8 =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5 =D1=81 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D0=B2 =D0=A0=D0=A4, = =D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B8=D1=82=D1=8C = =D0=B7=D0=BD=D0=B0=D0=BD=D0=B8=D1=8F, = =D0=BA=D0=BE=D1=82=D0=BE=D1=80=D1=8B=D0=B5 = =D0=BF=D0=BE=D0=B7=D0=B2=D0=BE=D0=BB=D1=8F=D1=82 =D0=B8=D0=B7=D0=B1=D0=B5=D0=B6=D0=B0=D1=82=D1=8C = =D1=82=D0=B8=D0=BF=D0=B8=D1=87=D0=BD=D1=8B=D1=85 = =D0=BE=D1=88=D0=B8=D0=B1=D0=BE=D0=BA =D0=B8 = =D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=BF=D1=80=D0=B8 = =D1=81=D0=BE=D0=B2=D0=B5=D1=80=D1=88=D0=B5=D0=BD=D0=B8=D0=B8 =D0=B8 = =D0=BE=D1=84=D0=BE=D1=80=D0=BC=D0=BB=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85 = =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B9. = =D0=9F=D1=80=D0=B5=D0=B4=D0=BD=D0=B0=D0=B7=D0=BD=D0=B0=D1=87=D0=B5=D0=BD=D0= =BE =D0=B4=D0=BB=D1=8F: = =D1=81=D0=BE=D0=B1=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=B8=D0=BA=D0=BE=D0= =B2 =D0=B1=D0=B8=D0=B7=D0=BD=D0=B5=D1=81=D0=B0, = =D1=84=D0=B8=D0=BD=D0=B0=D0=BD=D1=81=D0=BE=D0=B2=D1=8B=D1=85 =D0=B8 = =D0=BA=D0=BE=D0=BC=D0=BC=D0=B5=D1=80=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D1=85 = =D0=B4=D0=B8=D1=80=D0=B5=D0=BA=D1=82=D0=BE=D1=80=D0=BE=D0=B2, = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9 = =D1=84=D0=B8=D0=BD=D0=B0=D0=BD=D1=81=D0=BE=D0=B2=D0=BE-=D1=8D=D0=BA=D0=BE= =D0=BD=D0=BE=D0=BC=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D1=85 = =D1=81=D0=BB=D1=83=D0=B6=D0=B1 = =D0=BF=D1=80=D0=B5=D0=B4=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D0=B9 = =D0=B8 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B9, = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2 = =D0=B2=D0=BD=D0=B5=D1=88=D0=BD=D0=B5=D1=8D=D0=BA=D0=BE=D0=BD=D0=BE=D0=BC=D0= =B8=D1=87=D0=B5=D1=81=D0=BA=D0=BE=D0=B9 = =D0=B4=D0=B5=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D1=81=D1=82=D0=B8,= =D0=B1=D0=B0=D0=BD=D0=BA=D0=BE=D0=B2=D1=81=D0=BA=D0=B8=D1=85 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2. =D0=A2=D0=B5=D0=BC=D0=B0: = =D0=92=D0=90=D0=9B=D0=AE=D0=A2=D0=9D=D0=9E=D0=95 = =D0=A0=D0=95=D0=93=D0=A3=D0=9B=D0=98=D0=A0=D0=9E=D0=92=D0=90=D0=9D=D0=98=D0= =95 =D0=98 =D0=92=D0=90=D0=9B=D0=AE=D0=A2=D0=9D=D0=AB=D0=99 =D0=9A=D0=9E=D0=9D=D0=A2=D0=A0=D0=9E=D0=9B=D0=AC =D0=92 = =D0=A0=D0=A4 =D0=A1 =D0=A3=D0=A7=D0=95=D0=A2=D0=9E=D0=9C = =D0=9F=D0=9E=D0=A1=D0=9B=D0=95=D0=94=D0=9D=D0=98=D0=A5 = =D0=98=D0=97=D0=9C=D0=95=D0=9D=D0=95=D0=9D=D0=98=D0=99 = =D0=97=D0=90=D0=9A=D0=9E=D0=9D=D0=9E=D0=94=D0=90=D0=A2=D0=95=D0=9B=D0=AC=D0= =A1=D0=A2=D0=92=D0=90 =D0=97=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D0=B5 = =D1=81=D0=BE=D1=81=D1=82=D0=BE=D0=B8=D1=82=D1=81=D1=8F: 04 = =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2015 =D0=B3=D0=BE=D0=B4=D0=B0 = =D0=9E=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D1=80=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D1=81=D1=8F: c 10:00 = =D0=B4=D0=BE 17:30 =D0=90=D0=B4=D1=80=D0=B5=D1=81 = =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F: = =D0=B3. =D0=9C=D0=BE=D1=81=D0=BA=D0=B2=D0=B0, =D0=BC. = =D0=91=D0=B0=D1=83=D0=BC=D0=B0=D0=BD=D1=81=D0=BA=D0=B0=D1=8F, = =D1=83=D0=BB. = =D0=91=D0=B0=D1=83=D0=BC=D0=B0=D0=BD=D1=81=D0=BA=D0=B0=D1=8F, =D0=B4.6, = =D0=91.=D0=A6. "=D0=92=D0=B8=D0=BA=D1=82=D0=BE=D1=80=D0=B8=D1=8F = =D0=9F=D0=BB=D0=B0=D0=B7=D0=B0". =D0=92=D1=81=D1=8F = =D0=B8=D0=BD=D1=82=D0=B5=D1=80=D0=B5=D1=81=D1=83=D1=8E=D1=89=D0=B0=D1=8F = =D0=92=D0=B0=D1=81 = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D1=8F =D0=BE = =D0=BF=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D0=B5 =D0=B8 = =D0=B7=D0=B0=D1=8F=D0=B2=D0=BA=D0=B8 =D0=BD=D0=B0 = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=B8=D0=B5 = =D0=BF=D1=80=D0=B8=D0=BD=D0=B8=D0=BC=D0=B0=D1=8E=D1=82=D1=81=D1=8F = =D0=BF=D0=BE =D0=BD=D0=BE=D0=BC=D0=B5=D1=80=D1=83: 8 =D0=BA=D0=BE=D0=B4 =D0=B3=D0=BE=D1=80=D0=BE=D0=B4=D0=B0 ( 4 9 = 5 ) =D1=82=D0=B5=D0=BB=D0=B5=D1=84=D0=BE=D0=BD 725 - 04 - 48 = (=D0=BC=D0=BD=D0=BE=D0=B3=D0=BE=D0=BA=D0=B0=D0=BD=D0=B0=D0=BB=D1=8C=D0=BD= =D1=8B=D0=B9) =20 =20 =20 =D0=9F=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D0=B0 = (=D1=81=D0=BE=D0=BA=D1=80=D0=B0=D1=89=D0=B5=D0=BD=D0=BD=D1=8B=D0=B9 = =D0=B2=D0=B0=D1=80=D0=B8=D0=B0=D0=BD=D1=82): 1.=D0=9D=D0=BE=D0=B2=D0=BE=D0=B5 =D0=B2 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1= =8F =D0=B2 =D0=A0=D0=A4. = =D0=9D=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D0=BE-=D0=BF=D1=80= =D0=B0=D0=B2=D0=BE=D0=B2=D0=B0=D1=8F =D0=B1=D0=B0=D0=B7=D0=B0 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1= =8F =D0=B2 =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B9=D1=81=D0=BA=D0=BE=D0=B9 = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B8. = =D0=9F=D0=BE=D1=81=D0=BB=D0=B5=D0=B4=D0=BD=D0=B8=D0=B5 =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D0=A0=D0=A4. = =D0=9F=D0=BE=D1=80=D1=8F=D0=B4=D0=BE=D0=BA = =D0=BE=D1=82=D0=BA=D1=80=D1=8B=D1=82=D0=B8=D1=8F =D0=B8 = =D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F = =D1=81=D1=87=D0=B5=D1=82=D0=BE=D0=B2 = =D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=BE=D0=B2 = =D0=B7=D0=B0 =D0=BF=D1=80=D0=B5=D0=B4=D0=B5=D0=BB=D0=B0=D0=BC=D0=B8 = =D1=82=D0=B5=D1=80=D1=80=D0=B8=D1=82=D0=BE=D1=80=D0=B8=D0=B8 = =D0=A0=D0=A4. =D0=9F=D1=80=D0=B0=D0=B2=D0=B8=D0=BB=D0=B0 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1= =8F =D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85 = =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B9 =D0=B7=D0=B0 = =D1=81=D1=87=D0=B5=D1=82 =D1=81=D1=80=D0=B5=D0=B4=D1=81=D1=82=D0=B2, = =D0=BD=D0=B0=D1=85=D0=BE=D0=B4=D1=8F=D1=89=D0=B8=D1=85=D1=81=D1=8F = =D0=BD=D0=B0 =D1=81=D1=87=D0=B5=D1=82=D0=B0=D1=85 =D0=B7=D0=B0 = =D1=80=D1=83=D0=B1=D0=B5=D0=B6=D0=BE=D0=BC. = =D0=9F=D0=BE=D1=80=D1=8F=D0=B4=D0=BE=D0=BA = =D0=BF=D0=B5=D1=80=D0=B5=D0=B4=D0=B0=D1=87=D0=B8 = =D1=83=D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B5=D0=BD=D0=BD=D1= =8B=D0=BC=D0=B8 =D0=B1=D0=B0=D0=BD=D0=BA=D0=B0=D0=BC=D0=B8 =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=B8 = =D0=BE =D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0=B8=D1=8F=D1=85 = =D0=B8=D1=85 =D0=BA=D0=BB=D0=B8=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D0=A0=D0=A4. = =D0=94=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0=B8=D0=B5 = =D1=84=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B0 "=D0=9E = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=BC = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0= =B8 =D0=B8 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=BC = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D0=B5" 173-=D0=A4=D0=97 = (=D1=81 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F=D0=BC=D0=B8, =D0=B2=D1=81=D1=82=D1=83=D0=BF=D0=B8=D0=B2=D1=88=D0=B8=D0=BC=D0=B8 = =D0=B2 =D1=81=D0=B8=D0=BB=D1=83 =D0=B2 2013 =D0=B3=D0=BE=D0=B4=D1=83 = =D0=B8 = =D0=B2=D1=81=D1=82=D1=83=D0=BF=D0=B0=D1=8E=D1=89=D0=B8=D0=BC=D0=B8 = =D0=B2 =D1=81=D0=B8=D0=BB=D1=83 =D0=B2 2014 =D0=B3). = =D0=9F=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D1=8B = =D0=B1=D1=83=D0=B4=D1=83=D1=89=D0=B8=D1=85 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B0 "=D0=9E = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=BC = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0= =B8 =D0=B8 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=BC = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D0=B5".=20 =D0=94=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0=B8=D0=B5 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D0=B2 =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 =D1=81 = =D0=BF=D1=80=D0=B8=D0=BD=D1=8F=D1=82=D0=B8=D0=B5=D0=BC = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B0 =D0=BE=D1=82 27 = =D0=B8=D1=8E=D0=BD=D1=8F 2011 =D0=B3=D0=BE=D0=B4=D0=B0 161-=D0=A4=D0=97 "=D0=9E = =D0=BD=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=B9 = =D0=BF=D0=BB=D0=B0=D1=82=D0=B5=D0=B6=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5". = =D0=9E=D1=81=D0=BE=D0=B1=D0=B5=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0=B8 = =D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85 =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B9 = =D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B8 = =D0=BD=D0=B5=D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0= =B8.=20 2.=D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BF=D1=80=D0=B0=D0=B2=D0=B8=D0=BB = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F, = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D1=8F=D0=B5=D0=BC=D0= =BE=D0=B3=D0=BE =D1=81 =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=B8=D0=B5=D0=BC = =D1=82=D0=B0=D0=BC=D0=BE=D0=B6=D0=B5=D0=BD=D0=BD=D1=8B=D1=85 =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=BE=D0=B2. =D0=9E=D0=B1=D0=B7=D0=BE=D1=80 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D0=BE-=D0=BF=D1=80= =D0=B0=D0=B2=D0=BE=D0=B2=D0=BE=D0=B9 =D0=B1=D0=B0=D0=B7=D1=8B = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F. = =D0=A2=D0=B5=D1=85=D0=BD=D0=BE=D0=BB=D0=BE=D0=B3=D0=B8=D0=B8 = =D1=82=D0=B0=D0=BC=D0=BE=D0=B6=D0=B5=D0=BD=D0=BD=D0=BE- =D0=B1=D0=B0=D0=BD=D0=BA=D0=BE=D0=B2=D1=81=D0=BA=D0=BE=D0=B3=D0=BE = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F = (=D0=A2=D0=91=D0=92=D0=9A), = =D0=B2=D0=B7=D0=B0=D0=B8=D0=BC=D0=BE=D0=B4=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0= =B8=D0=B5 =D1=81 =D0=B4=D1=80=D1=83=D0=B3=D0=B8=D0=BC=D0=B8 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B0=D0=BC=D0=B8 =D0=B8 = =D0=B0=D0=B3=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F. = =D0=92=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D1=8B = =D0=B4=D0=B5=D0=BA=D0=BB=D0=B0=D1=80=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0= =B8=D1=8F =D1=82=D0=BE=D0=B2=D0=B0=D1=80=D0=BE=D0=B2 =D0=B8 = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0= =BE=D0=B3=D0=BE =D0=BE=D0=B1=D0=BC=D0=B5=D0=BD=D0=B0 = =D0=BC=D0=B5=D0=B6=D0=B4=D1=83 =D0=A4=D0=A2=D0=A1 =D0=A0=D0=A4 =D0=B8 = =D1=83=D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B5=D0=BD=D0=BD=D1= =8B=D0=BC=D0=B8 =D0=B1=D0=B0=D0=BD=D0=BA=D0=B0=D0=BC=D0=B8. = =D0=92=D1=8B=D1=8F=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0, = =D0=BF=D1=80=D0=B5=D0=B4=D1=83=D1=81=D0=BC=D0=BE=D1=82=D1=80=D0=B5=D0=BD=D0= =BD=D1=8B=D1=85 =D0=9A=D0=9E=D0=90=D0=9F =D0=A0=D0=A4. = =D0=92=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D0=B9 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8C =D0=B2 = =D0=BD=D0=B5=D1=82=D0=BE=D1=80=D0=B3=D0=BE=D0=B2=D0=BE=D0=BC = =D0=BE=D0=B1=D0=BE=D1=80=D0=BE=D1=82=D0=B5.=20 3.=D0=92=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D0=B9 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8C =D0=BF=D1=80=D0=B8 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B8 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85 = =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B9, = =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D1=85 =D1=81 = =D0=B2=D0=BD=D0=B5=D1=88=D0=BD=D0=B5=D1=82=D0=BE=D1=80=D0=B3=D0=BE=D0=B2=D0= =BE=D0=B9 = =D0=B4=D0=B5=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D1=81=D1=82=D1=8C=D1= =8E, =D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC =D0=B8 = =D0=BF=D1=80=D0=B5=D0=B4=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0= =B8=D0=B5=D0=BC =D0=BA=D1=80=D0=B5=D0=B4=D0=B8=D1=82=D0=BE=D0=B2 =D0=B8 = =D0=B7=D0=B0=D0=B9=D0=BC=D0=BE=D0=B2. =D0=9F=D0=B0=D1=81=D0=BF=D0=BE=D1=80=D1=82 = =D1=81=D0=B4=D0=B5=D0=BB=D0=BA=D0=B8: = =D0=9E=D1=84=D0=BE=D1=80=D0=BC=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 =D0=B8 = =D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D0=B0=D1=81=D0=BF=D0=BE=D1=80=D1=82=D0=B0 = =D1=81=D0=B4=D0=B5=D0=BB=D0=BA=D0=B8 =D0=B2 = =D1=86=D0=B5=D0=BB=D1=8F=D1=85 = =D0=BE=D0=B1=D0=B5=D1=81=D0=BF=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D1=83=D1=87=D0=B5=D1=82=D0=B0 =D0=B8 = =D0=BE=D1=82=D1=87=D0=B5=D1=82=D0=BD=D0=BE=D1=81=D1=82=D0=B8 =D0=B8 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1= =8F =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F =D0=BF=D0=BE = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D0=BC = =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D1=8F=D0=BC = =D0=BC=D0=B5=D0=B6=D0=B4=D1=83 = =D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B8 = =D0=BD=D0=B5=D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0= =B8. = =D0=9F=D1=80=D0=B5=D0=B4=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B5 =D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B2 = =D1=83=D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B5=D0=BD=D0=BD=D1= =8B=D0=B9 =D0=B1=D0=B0=D0=BD=D0=BA = =D1=81=D0=BF=D1=80=D0=B0=D0=B2=D0=BA=D0=B8 =D0=BE = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85 =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D1=8F=D1=85 =D0=B8 = =D1=81=D0=BF=D1=80=D0=B0=D0=B2=D0=BA=D0=B8 =D0=BE = =D0=BF=D0=BE=D0=B4=D1=82=D0=B2=D0=B5=D1=80=D0=B6=D0=B4=D0=B0=D1=8E=D1=89=D0= =B8=D1=85 =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D0=B0=D1=85 = =D0=BF=D1=80=D0=B8 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B8 = =D0=B2=D0=BD=D0=B5=D1=88=D0=BD=D0=B5=D1=82=D0=BE=D1=80=D0=B3=D0=BE=D0=B2=D0= =BE=D0=B9 = =D0=B4=D0=B5=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D1=81=D1=82=D0=B8.= = 4.=D0=9A=D0=BB=D0=B0=D1=81=D1=81=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=86=D0=B8= =D1=8F =D0=B8 = =D1=81=D0=BE=D0=B4=D0=B5=D1=80=D0=B6=D0=B0=D0=BD=D0=B8=D0=B5 = =D0=BF=D1=80=D0=B0=D0=B2=D0=BE=D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0= =B8=D0=B9 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D1=81 =D1=83=D1=87=D0=B5=D1=82=D0=BE=D0=BC =D0=BF=D0=BE=D1=81=D0=BB=D0=B5=D0=B4=D0=BD=D0=B8=D1=85 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D0=BE=D0=B9 = =D0=BF=D1=80=D0=B0=D0=B2=D0=BE=D0=B2=D0=BE=D0=B9 = =D0=B1=D0=B0=D0=B7=D1=8B.=20 = =D0=93=D0=BE=D1=81=D1=83=D0=B4=D0=B0=D1=80=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0= =BD=D1=8B=D0=B9 = =D1=84=D0=B8=D0=BD=D0=B0=D0=BD=D1=81=D0=BE=D0=B2=D1=8B=D0=B9 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8C =D0=B7=D0=B0 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B5=D0=BC =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85 = =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B9 = =D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B8 = =D0=BD=D0=B5=D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0= =B8, =D0=BD=D0=B5 = =D1=8F=D0=B2=D0=BB=D1=8F=D1=8E=D1=89=D0=B8=D0=BC=D0=B8=D1=81=D1=8F = =D0=BA=D1=80=D0=B5=D0=B4=D0=B8=D1=82=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D1=8F=D0=BC=D0= =B8 =D0=B8 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=B1=D0=B8=D1=80=D0=B6=D0=B0=D0=BC=D0=B8. = =D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F =D0=B2 =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B9 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =D0=BE=D1=82 08.12.2003 = =D0=B3=D0=BE=D0=B4=D0=B0 =E2=84=96 164-=D0=A4=D0=97 "=D0=9E=D0=B1 = =D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=B0=D1=85 = =D0=B3=D0=BE=D1=81=D1=83=D0=B4=D0=B0=D1=80=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0= =BD=D0=BE=D0=B3=D0=BE = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1= =8F = =D0=B2=D0=BD=D0=B5=D1=88=D0=BD=D0=B5=D1=82=D0=BE=D1=80=D0=B3=D0=BE=D0=B2=D0= =BE=D0=B9 = =D0=B4=D0=B5=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D1=81=D1=82=D0=B8"= , =D0=B2 =D0=9A=D0=BE=D0=B4=D0=B5=D0=BA=D1=81 = =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B9=D1=81=D0=BA=D0=BE=D0=B9 = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B8 =D0=BE=D0=B1 = =D0=B0=D0=B4=D0=BC=D0=B8=D0=BD=D0=B8=D1=81=D1=82=D1=80=D0=B0=D1=82=D0=B8=D0= =B2=D0=BD=D1=8B=D1=85 = =D0=BF=D1=80=D0=B0=D0=B2=D0=BE=D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0= =B8=D1=8F=D1=85, =D0=B2 = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B9 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =D0=BE=D1=82 10.12.2003 = =D0=B3=D0=BE=D0=B4=D0=B0 =E2=84=96 173-=D0=A4=D0=97 "=D0=9E = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=BC = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0= =B8 =D0=B8 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=BC = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D0=B5" =D0=B8 = =D0=B4=D1=80=D1=83=D0=B3=D0=B8=D0=B5 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D1=8B=D0=B5 = =D0=BF=D1=80=D0=B0=D0=B2=D0=BE=D0=B2=D1=8B=D0=B5 = =D0=B0=D0=BA=D1=82=D1=8B, = =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5 =D1=81 = =D0=BF=D1=80=D0=B8=D0=BD=D1=8F=D1=82=D0=B8=D0=B5=D0=BC =D1=84=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D1=85 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B2. = =D0=92=D1=8B=D1=8F=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 =D0=B8 = =D0=BF=D1=80=D0=B5=D1=81=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B9=D1=81=D0=BA=D0=BE=D0=B9 = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B8 =D0=B8 = =D0=B0=D0=BA=D1=82=D0=BE=D0=B2 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=BE=D0=B2 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1= =8F.=20 = 5.=D0=9E=D1=82=D0=B2=D0=B5=D1=82=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE= =D1=81=D1=82=D1=8C =D0=B7=D0=B0 = =D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D0=B8 =D0=B0=D0=BA=D1=82=D0=BE=D0=B2 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=BE=D0=B2 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1= =8F. =D0=9C=D0=B8=D0=BD=D0=B8=D0=BC=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D1=8F = =D1=80=D0=B8=D1=81=D0=BA=D0=BE=D0=B2, = =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D1=85 =D1=81 = =D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85 = =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B9 =D0=BF=D1=80=D0=B8 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B8 = =D0=B2=D0=BD=D0=B5=D1=88=D0=BD=D0=B5=D1=8D=D0=BA=D0=BE=D0=BD=D0=BE=D0=BC=D0= =B8=D1=87=D0=B5=D1=81=D0=BA=D0=BE=D0=B9 = =D0=B4=D0=B5=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D1=81=D1=82=D0=B8.= = =D0=9F=D1=80=D0=B5=D0=B4=D1=83=D0=BF=D1=80=D0=B5=D0=B6=D0=B4=D0=B5=D0=BD=D0= =B8=D0=B5 = =D0=BF=D1=80=D0=B0=D0=B2=D0=BE=D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0= =B8=D0=B9 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 = =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B9=D1=81=D0=BA=D0=BE=D0=B9 = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B8 =D0=B8 = =D0=B0=D0=BA=D1=82=D0=BE=D0=B2 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=BE=D0=B2 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1= =8F. =D0=9A=D0=BE=D0=BC=D0=BF=D0=BB=D0=B5=D0=BA=D1=81 = =D0=BC=D0=B5=D1=80 =D0=BF=D0=BE = =D1=81=D0=BE=D0=B7=D0=B4=D0=B0=D0=BD=D0=B8=D1=8E = =D0=B2=D0=BD=D1=83=D1=82=D1=80=D0=B8=D1=84=D0=B8=D1=80=D0=BC=D0=B5=D0=BD=D0= =BD=D0=BE=D0=B9 =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D1=8B = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F. = =D0=9C=D0=B5=D1=81=D1=82=D0=BE = =D0=B2=D0=BD=D1=83=D1=82=D1=80=D0=B8=D1=84=D0=B8=D1=80=D0=BC=D0=B5=D0=BD=D0= =BD=D0=BE=D0=B9 =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D1=8B = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F =D0=B2 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0= =BD=D0=BE=D0=B9 =D1=81=D1=82=D1=80=D1=83=D0=BA=D1=82=D1=83=D1=80=D0=B5 =D0=BF=D1=80=D0=B5=D0=B4=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F = (=D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B8). = =D0=A2=D1=80=D0=B5=D0=B1=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D0=BA = =D1=83=D1=81=D0=BB=D0=BE=D0=B2=D0=B8=D1=8F=D0=BC = =D0=B7=D0=B0=D0=BA=D0=BB=D1=8E=D1=87=D0=B0=D0=B5=D0=BC=D1=8B=D1=85 = =D0=B2=D0=BE = =D0=B2=D0=BD=D0=B5=D1=88=D0=BD=D0=B5=D1=82=D0=BE=D1=80=D0=B3=D0=BE=D0=B2=D0= =BE=D0=B9 = =D0=B4=D0=B5=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D1=81=D1=82=D0=B8 = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=BE=D0=B2 = (=D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BE=D0=B2).=20 6.=D0=9F=D0=BE=D1=80=D1=8F=D0=B4=D0=BE=D0=BA = =D0=B2=D0=B7=D0=B0=D0=B8=D0=BC=D0=BE=D0=B4=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0= =B8=D1=8F = =D0=A0=D0=BE=D1=81=D1=84=D0=B8=D0=BD=D0=BD=D0=B0=D0=B4=D0=B7=D0=BE=D1=80=D0= =B0 =D1=81 =D0=91=D0=B0=D0=BD=D0=BA=D0=BE=D0=BC = =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B8, = =D1=82=D0=B0=D0=BC=D0=BE=D0=B6=D0=B5=D0=BD=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=B8 =D0=BD=D0=B0=D0=BB=D0=BE=D0=B3=D0=BE=D0=B2=D1=8B=D0=BC=D0=B8 =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B0=D0=BC=D0=B8, = =D1=83=D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B5=D0=BD=D0=BD=D1= =8B=D0=BC=D0=B8 =D0=B1=D0=B0=D0=BD=D0=BA=D0=B0=D0=BC=D0=B8, =D0=B0 = =D1=82=D0=B0=D0=BA=D0=B6=D0=B5 = =D0=BF=D1=80=D0=BE=D1=84=D0=B5=D1=81=D1=81=D0=B8=D0=BE=D0=BD=D0=B0=D0=BB=D1= =8C=D0=BD=D1=8B=D0=BC=D0=B8 = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=BD=D0=B8=D0=BA=D0=B0=D0=BC=D0=B8 = =D1=80=D1=8B=D0=BD=D0=BA=D0=B0 =D1=86=D0=B5=D0=BD=D0=BD=D1=8B=D1=85 = =D0=B1=D1=83=D0=BC=D0=B0=D0=B3, =D0=BA=D0=B0=D0=BA = =D0=B0=D0=B3=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F.=20 =D0=9F=D1=80=D0=B0=D0=B2=D0=B8=D0=BB=D0=B0 = =D0=BF=D1=80=D0=B5=D0=B4=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1= =8F =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B0=D0=BC=D0=B8 =D0=B8 = =D0=B0=D0=B3=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F =D0=B2 = =D1=83=D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B5=D0=BD=D0=BD=D1= =8B=D0=B9 = =D0=9F=D1=80=D0=B0=D0=B2=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2=D0= =BE=D0=BC =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B9=D1=81=D0=BA=D0=BE=D0=B9 = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B8 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F = (=D0=A0=D0=BE=D1=81=D1=84=D0=B8=D0=BD=D0=BD=D0=B0=D0=B4=D0=B7=D0=BE=D1=80= ) =D0=BD=D0=B5=D0=BE=D0=B1=D1=85=D0=BE=D0=B4=D0=B8=D0=BC=D1=8B=D1=85 =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D0=BE=D0=B2 = =D0=B8 =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=B8. = =D0=9E=D1=82=D0=B4=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D0=B5 = =D0=B2=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D1=8B = =D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D1=8C=D0=B7=D1=83=D0=B5=D0=BC=D1=8B=D1=85 = =D0=B2 =D1=81=D1=84=D0=B5=D1=80=D0=B5 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D1= =8B=D1=85 =D1=82=D0=B5=D1=85=D0=BD=D0=BE=D0=BB=D0=BE=D0=B3=D0=B8=D0=B9. = =D0=9F=D0=BB=D0=B0=D0=BD=D0=B8=D1=80=D1=83=D0=B5=D0=BC=D1=8B=D0=B5 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F, = =D0=BA=D0=B0=D1=81=D0=B0=D1=8E=D1=89=D0=B8=D0=B5=D1=81=D1=8F = =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BD=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE =D0=BF=D0=BE=D1=80=D1=8F=D0=B4=D0=BA=D0=B0 = =D0=BF=D0=B5=D1=80=D0=B5=D0=B4=D0=B0=D1=87=D0=B8 = =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D0=BE=D0=B2 =D0=B8 = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=B8 = =D0=BC=D0=B5=D0=B6=D0=B4=D1=83 =D0=91=D0=B0=D0=BD=D0=BA=D0=BE=D0=BC = =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B8, = =D1=83=D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B5=D0=BD=D0=BD=D1= =8B=D0=BC=D0=B8 =D0=B1=D0=B0=D0=BD=D0=BA=D0=B0=D0=BC=D0=B8 =D0=B8 = =D0=A0=D0=BE=D1=81=D1=84=D0=B8=D0=BD=D0=BD=D0=B0=D0=B4=D0=B7=D0=BE=D1=80=D0= =BE=D0=BC; =D0=BC=D0=B5=D0=B6=D0=B4=D1=83 =D0=A4=D0=A1=D0=A1=D0=9F = =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B8 =D0=B8 = =D0=A0=D0=BE=D1=81=D1=84=D0=B8=D0=BD=D0=BD=D0=B0=D0=B4=D0=B7=D0=BE=D1=80=D0= =BE=D0=BC; =D0=BC=D0=B5=D0=B6=D0=B4=D1=83 = =D1=82=D0=B0=D0=BC=D0=BE=D0=B6=D0=B5=D0=BD=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=B8 =D0=BD=D0=B0=D0=BB=D0=BE=D0=B3=D0=BE=D0=B2=D1=8B=D0=BC=D0=B8 =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B0=D0=BC=D0=B8 =D0=B8 = =D0=A0=D0=BE=D1=81=D1=84=D0=B8=D0=BD=D0=BD=D0=B0=D0=B4=D0=B7=D0=BE=D1=80=D0= =BE=D0=BC.=20 =20 =D0=A3=D1=87=D0=B0=D1=81=D1=82=D0=B8=D0=B5 = =D1=81=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D1=8F=D0=B5=D1=82: 11800 = =D1=80=D1=83=D0=B1=D0=BB=D0=B5=D0=B9. =D0=92 = =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D0=B5 = =D0=B2=D0=BA=D0=BB=D1=8E=D1=87=D0=B5=D0=BD=D0=BE: = =D0=BC=D0=B5=D1=82=D0=BE=D0=B4=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D0=B9 = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB, = =D0=BE=D0=B1=D0=B5=D0=B4=D1=8B, = =D0=BA=D0=BE=D1=84=D0=B5-=D0=BF=D0=B0=D1=83=D0=B7=D1=8B. =D0=9F=D0=BE=D1=81=D0=BB=D0=B5 = =D0=BE=D0=BA=D0=BE=D0=BD=D1=87=D0=B0=D0=BD=D0=B8=D1=8F = =D0=B7=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D1=8F =D0=92=D0=B0=D0=BC = =D0=B2=D1=8B=D0=B4=D0=B0=D0=B5=D1=82=D1=81=D1=8F = =D1=81=D0=B5=D1=80=D1=82=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=82 = =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=BD=D0=BE=D0= =B3=D0=BE =D0=BE=D0=B1=D1=80=D0=B0=D0=B7=D1=86=D0=B0. =D0=98=D0=BD=D0=BE=D0=B3=D0=BE=D1=80=D0=BE=D0=B4=D0=BD=D0=B8=D0=BC = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=BD=D0=B8=D0=BA=D0=B0=D0=BC = =D0=BF=D0=BE=D0=BC=D0=BE=D0=B3=D0=B0=D0=B5=D0=BC =D0=B2 = =D0=B1=D1=80=D0=BE=D0=BD=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B8 = =D0=B3=D0=BE=D1=81=D1=82=D0=B8=D0=BD=D0=B8=D1=86=D1=8B. =20 =20 =20 ------=_NextPart_000_0047_01D121CF.401CC830 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
     


=D0=9F =D1=80 =D0=BE =D0=BC =D0=BE =D0=BA =D0=BE =D0=B4 : = 256

     
      =D0=90=D0=BA=D0=BA=D1=80=D0=B5=D0=B4=D0=B8=D1=82=D0=BE=D0=B2=D0=B0=D0=BD= =D0=BD=D1=8B=D0=B9 =D0=A3=D1=87=D0=B5=D0=B1=D0=BD=D1=8B=D0=B9 = =D1=86=D0=B5=D0=BD=D1=82=D1=80 = =D0=BF=D1=80=D0=B8=D0=B3=D0=BB=D0=B0=D1=88=D0=B0=D0=B5=D1=82 = =D0=BD=D0=B0=20 = =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5:

=D0=A6=D0=B5=D0=BB=D1=8C=20 =D0=B7=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D1=8F: = =D0=BE=D0=B1=D1=81=D1=83=D0=B4=D0=B8=D1=82=D1=8C = =D0=B0=D0=BA=D1=82=D1=83=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B5 = =D0=B2=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D1=8B, = =D0=B8=D0=BC=D0=B5=D1=8E=D1=89=D0=B8=D0=B5 = =D0=BF=D1=80=D0=B0=D0=BA=D1=82=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D1=83=D1=8E = = =D0=BD=D0=B0=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0=BD=D0=BE=D1=81=D1= =82=D1=8C = =D0=B8
=D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5 =D1=81 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D0=B2=20 =D0=A0=D0=A4, =D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B8=D1=82=D1=8C = =D0=B7=D0=BD=D0=B0=D0=BD=D0=B8=D1=8F, = =D0=BA=D0=BE=D1=82=D0=BE=D1=80=D1=8B=D0=B5 = =D0=BF=D0=BE=D0=B7=D0=B2=D0=BE=D0=BB=D1=8F=D1=82
=D0=B8=D0=B7=D0=B1=D0= =B5=D0=B6=D0=B0=D1=82=D1=8C = =D1=82=D0=B8=D0=BF=D0=B8=D1=87=D0=BD=D1=8B=D1=85 = =D0=BE=D1=88=D0=B8=D0=B1=D0=BE=D0=BA =D0=B8=20 =D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=BF=D1=80=D0=B8 = =D1=81=D0=BE=D0=B2=D0=B5=D1=80=D1=88=D0=B5=D0=BD=D0=B8=D0=B8 =D0=B8 = =D0=BE=D1=84=D0=BE=D1=80=D0=BC=D0=BB=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85 = =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B9.

=D0=9F=D1=80=D0=B5=D0=B4=D0=BD=D0=B0=D0=B7=D0=BD=D0=B0=D1=87=D0= =B5=D0=BD=D0=BE =D0=B4=D0=BB=D1=8F: = =D1=81=D0=BE=D0=B1=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=B8=D0=BA= =D0=BE=D0=B2=20 =D0=B1=D0=B8=D0=B7=D0=BD=D0=B5=D1=81=D0=B0, = =D1=84=D0=B8=D0=BD=D0=B0=D0=BD=D1=81=D0=BE=D0=B2=D1=8B=D1=85 =D0=B8 = =D0=BA=D0=BE=D0=BC=D0=BC=D0=B5=D1=80=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D1=85 = =D0=B4=D0=B8=D1=80=D0=B5=D0=BA=D1=82=D0=BE=D1=80=D0=BE=D0=B2,
=D1=80=D1= =83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0=B9=20 = =D1=84=D0=B8=D0=BD=D0=B0=D0=BD=D1=81=D0=BE=D0=B2=D0=BE-=D1=8D=D0=BA=D0=BE= =D0=BD=D0=BE=D0=BC=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D1=85 = =D1=81=D0=BB=D1=83=D0=B6=D0=B1 = =D0=BF=D1=80=D0=B5=D0=B4=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D0=B9 = =D0=B8 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B9,=20 = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2
=D0=B2=D0= =BD=D0=B5=D1=88=D0=BD=D0=B5=D1=8D=D0=BA=D0=BE=D0=BD=D0=BE=D0=BC=D0=B8=D1=87= =D0=B5=D1=81=D0=BA=D0=BE=D0=B9 = =D0=B4=D0=B5=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D1=81=D1=82=D0=B8,= =D0=B1=D0=B0=D0=BD=D0=BA=D0=BE=D0=B2=D1=81=D0=BA=D0=B8=D1=85=20 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2.

=D0=A2=D0=B5=D0=BC=D0=B0:   =D0=92=D0=90=D0=9B=D0=AE=D0=A2=D0=9D=D0=9E=D0=95 = =D0=A0=D0=95=D0=93=D0=A3=D0=9B=D0=98=D0=A0=D0=9E=D0=92=D0=90=D0=9D=D0=98=D0= =95 =D0=98=20 = =D0=92=D0=90=D0=9B=D0=AE=D0=A2=D0=9D=D0=AB=D0=99
=D0=9A=D0=9E=D0=9D=D0= =A2=D0=A0=D0=9E=D0=9B=D0=AC =D0=92 =D0=A0=D0=A4 =D0=A1 = =D0=A3=D0=A7=D0=95=D0=A2=D0=9E=D0=9C = =D0=9F=D0=9E=D0=A1=D0=9B=D0=95=D0=94=D0=9D=D0=98=D0=A5=20 = =D0=98=D0=97=D0=9C=D0=95=D0=9D=D0=95=D0=9D=D0=98=D0=99
=D0=97=D0=90=D0= =9A=D0=9E=D0=9D=D0=9E=D0=94=D0=90=D0=A2=D0=95=D0=9B=D0=AC=D0=A1=D0=A2=D0=92= =D0=90


=D0=97=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D0=B5 = =D1=81=D0=BE=D1=81=D1=82=D0=BE=D0=B8=D1=82=D1=81=D1=8F: 04=20 =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2015 = =D0=B3=D0=BE=D0=B4=D0=B0 =

=D0=9E=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5=20 =D0=BF=D1=80=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D1=81=D1=8F: c 10:00 =D0=B4=D0=BE=20 17:30

=D0=90=D0=B4=D1=80=D0=B5=D1=81 = =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F: = =D0=B3. =D0=9C=D0=BE=D1=81=D0=BA=D0=B2=D0=B0, =D0=BC.=20 =D0=91=D0=B0=D1=83=D0=BC=D0=B0=D0=BD=D1=81=D0=BA=D0=B0=D1=8F, = =D1=83=D0=BB. = =D0=91=D0=B0=D1=83=D0=BC=D0=B0=D0=BD=D1=81=D0=BA=D0=B0=D1=8F, =D0=B4.6, = =D0=91.=D0=A6. "=D0=92=D0=B8=D0=BA=D1=82=D0=BE=D1=80=D0=B8=D1=8F=20 =D0=9F=D0=BB=D0=B0=D0=B7=D0=B0".

=D0=92=D1=81=D1=8F = =D0=B8=D0=BD=D1=82=D0=B5=D1=80=D0=B5=D1=81=D1=83=D1=8E=D1=89=D0=B0=D1=8F = =D0=92=D0=B0=D1=81 = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D1=8F =D0=BE=20 =D0=BF=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D0=B5 =D0=B8 = =D0=B7=D0=B0=D1=8F=D0=B2=D0=BA=D0=B8 =D0=BD=D0=B0 = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=B8=D0=B5 = =D0=BF=D1=80=D0=B8=D0=BD=D0=B8=D0=BC=D0=B0=D1=8E=D1=82=D1=81=D1=8F = =D0=BF=D0=BE =D0=BD=D0=BE=D0=BC=D0=B5=D1=80=D1=83:

 8  =D0=BA=D0=BE=D0=B4 = =D0=B3=D0=BE=D1=80=D0=BE=D0=B4=D0=B0  (=20 4 9 5 )  =D1=82=D0=B5=D0=BB=D0=B5=D1=84=D0=BE=D0=BD  725 -=20 04 - 48 =20 = (=D0=BC=D0=BD=D0=BE=D0=B3=D0=BE=D0=BA=D0=B0=D0=BD=D0=B0=D0=BB=D1=8C=D0=BD= =D1=8B=D0=B9)
 		      
             
     


=D0=9F=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D0=B0 = (=D1=81=D0=BE=D0=BA=D1=80=D0=B0=D1=89=D0=B5=D0=BD=D0=BD=D1=8B=D0= =B9=20 = =D0=B2=D0=B0=D1=80=D0=B8=D0=B0=D0=BD=D1=82):

1.=D0=9D=D0= =BE=D0=B2=D0=BE=D0=B5 =D0=B2 =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1= =8F =D0=B2=20 = =D0=A0=D0=A4.
=D0=9D=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD= =D0=BE-=D0=BF=D1=80=D0=B0=D0=B2=D0=BE=D0=B2=D0=B0=D1=8F = =D0=B1=D0=B0=D0=B7=D0=B0 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1= =8F =D0=B2 =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B9=D1=81=D0=BA=D0=BE=D0=B9=20 =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B8. = =D0=9F=D0=BE=D1=81=D0=BB=D0=B5=D0=B4=D0=BD=D0=B8=D0=B5
=D0=B8=D0=B7=D0= =BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D0=A0=D0=A4. = =D0=9F=D0=BE=D1=80=D1=8F=D0=B4=D0=BE=D0=BA=20 =D0=BE=D1=82=D0=BA=D1=80=D1=8B=D1=82=D0=B8=D1=8F =D0=B8 = =D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F = =D1=81=D1=87=D0=B5=D1=82=D0=BE=D0=B2 = =D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=BE=D0=B2 = =D0=B7=D0=B0
=D0=BF=D1=80=D0=B5=D0=B4=D0=B5=D0=BB=D0=B0=D0=BC=D0=B8 = =D1=82=D0=B5=D1=80=D1=80=D0=B8=D1=82=D0=BE=D1=80=D0=B8=D0=B8 = =D0=A0=D0=A4.=20 =D0=9F=D1=80=D0=B0=D0=B2=D0=B8=D0=BB=D0=B0 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1= =8F =D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85 = =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B9 =D0=B7=D0=B0 = =D1=81=D1=87=D0=B5=D1=82
=D1=81=D1=80=D0=B5=D0=B4=D1=81=D1=82=D0=B2,=20 =D0=BD=D0=B0=D1=85=D0=BE=D0=B4=D1=8F=D1=89=D0=B8=D1=85=D1=81=D1=8F = =D0=BD=D0=B0 =D1=81=D1=87=D0=B5=D1=82=D0=B0=D1=85 =D0=B7=D0=B0 = =D1=80=D1=83=D0=B1=D0=B5=D0=B6=D0=BE=D0=BC. = =D0=9F=D0=BE=D1=80=D1=8F=D0=B4=D0=BE=D0=BA = =D0=BF=D0=B5=D1=80=D0=B5=D0=B4=D0=B0=D1=87=D0=B8 = =D1=83=D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B5=D0=BD=D0=BD=D1= =8B=D0=BC=D0=B8=20 = =D0=B1=D0=B0=D0=BD=D0=BA=D0=B0=D0=BC=D0=B8
=D0=B8=D0=BD=D1=84=D0=BE=D1= =80=D0=BC=D0=B0=D1=86=D0=B8=D0=B8 =D0=BE = =D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0=B8=D1=8F=D1=85 = =D0=B8=D1=85 =D0=BA=D0=BB=D0=B8=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0=20 =D0=A0=D0=A4. = =D0=94=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0=B8=D0=B5
=D1=84=D0=B5=D0=B4=D0= =B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B0 "=D0=9E = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=BC=20 = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0= =B8 =D0=B8 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=BC = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D0=B5" 173-=D0=A4=D0=97 (=D1=81=20 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F=D0=BC=D0=B8,
=D0= =B2=D1=81=D1=82=D1=83=D0=BF=D0=B8=D0=B2=D1=88=D0=B8=D0=BC=D0=B8 =D0=B2 = =D1=81=D0=B8=D0=BB=D1=83 =D0=B2 2013 =D0=B3=D0=BE=D0=B4=D1=83 =D0=B8 = =D0=B2=D1=81=D1=82=D1=83=D0=BF=D0=B0=D1=8E=D1=89=D0=B8=D0=BC=D0=B8 = =D0=B2 =D1=81=D0=B8=D0=BB=D1=83 =D0=B2 2014=20 =D0=B3). =D0=9F=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D1=8B = =D0=B1=D1=83=D0=B4=D1=83=D1=89=D0=B8=D1=85 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9
=D0=A4=D0=B5=D0= =B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B0 "=D0=9E = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=BC = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0= =B8 =D0=B8 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=BC = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D0=B5". =
=D0=94=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0=B8=D0=B5 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D0=B2 =D1=81=D0=B2=D1=8F=D0=B7=D0=B8 =D1=81=20 =D0=BF=D1=80=D0=B8=D0=BD=D1=8F=D1=82=D0=B8=D0=B5=D0=BC = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B0 =D0=BE=D1=82 27 = =D0=B8=D1=8E=D0=BD=D1=8F
2011 =D0=B3=D0=BE=D0=B4=D0=B0 = 161-=D0=A4=D0=97 "=D0=9E = =D0=BD=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=B9 = =D0=BF=D0=BB=D0=B0=D1=82=D0=B5=D0=B6=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5". = =D0=9E=D1=81=D0=BE=D0=B1=D0=B5=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0=B8 = =D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85
=D0=BE=D0=BF=D0=B5=D1= =80=D0=B0=D1=86=D0=B8=D0=B9=20 =D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B8 = =D0=BD=D0=B5=D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0= =B8.
2.=D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1= =8F =D0=BF=D1=80=D0=B0=D0=B2=D0=B8=D0=BB = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F, = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D1=8F=D0=B5=D0=BC=D0= =BE=D0=B3=D0=BE =D1=81=20 =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=B8=D0=B5=D0=BC = =D1=82=D0=B0=D0=BC=D0=BE=D0=B6=D0=B5=D0=BD=D0=BD=D1=8B=D1=85
=D0=BE=D1= =80=D0=B3=D0=B0=D0=BD=D0=BE=D0=B2.
=D0=9E=D0=B1=D0=B7=D0=BE=D1=80 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D0=BE-=D0=BF=D1=80= =D0=B0=D0=B2=D0=BE=D0=B2=D0=BE=D0=B9=20 =D0=B1=D0=B0=D0=B7=D1=8B = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F. = =D0=A2=D0=B5=D1=85=D0=BD=D0=BE=D0=BB=D0=BE=D0=B3=D0=B8=D0=B8 = =D1=82=D0=B0=D0=BC=D0=BE=D0=B6=D0=B5=D0=BD=D0=BD=D0=BE-
=D0=B1=D0=B0=D0= =BD=D0=BA=D0=BE=D0=B2=D1=81=D0=BA=D0=BE=D0=B3=D0=BE = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE=20 =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F = (=D0=A2=D0=91=D0=92=D0=9A), = =D0=B2=D0=B7=D0=B0=D0=B8=D0=BC=D0=BE=D0=B4=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0= =B8=D0=B5 =D1=81 =D0=B4=D1=80=D1=83=D0=B3=D0=B8=D0=BC=D0=B8 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B0=D0=BC=D0=B8 =D0=B8 = =D0=B0=D0=B3=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8
=D0=B2=D0=B0=D0=BB=D1= =8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE=20 =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F. = =D0=92=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D1=8B = =D0=B4=D0=B5=D0=BA=D0=BB=D0=B0=D1=80=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0= =B8=D1=8F =D1=82=D0=BE=D0=B2=D0=B0=D1=80=D0=BE=D0=B2 =D0=B8 = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0= =BE=D0=B3=D0=BE =D0=BE=D0=B1=D0=BC=D0=B5=D0=BD=D0=B0 = =D0=BC=D0=B5=D0=B6=D0=B4=D1=83=20 =D0=A4=D0=A2=D0=A1
=D0=A0=D0=A4 =D0=B8 = =D1=83=D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B5=D0=BD=D0=BD=D1= =8B=D0=BC=D0=B8 =D0=B1=D0=B0=D0=BD=D0=BA=D0=B0=D0=BC=D0=B8. = =D0=92=D1=8B=D1=8F=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0,=20 = =D0=BF=D1=80=D0=B5=D0=B4=D1=83=D1=81=D0=BC=D0=BE=D1=82=D1=80=D0=B5=D0=BD=D0= =BD=D1=8B=D1=85
=D0=9A=D0=9E=D0=90=D0=9F =D0=A0=D0=A4. = =D0=92=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D0=B9 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8C =D0=B2 = =D0=BD=D0=B5=D1=82=D0=BE=D1=80=D0=B3=D0=BE=D0=B2=D0=BE=D0=BC = =D0=BE=D0=B1=D0=BE=D1=80=D0=BE=D1=82=D0=B5.=20
3.=D0=92=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D0=B9 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8C=20 =D0=BF=D1=80=D0=B8 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B8 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85 = =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B9, = =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D1=85 = =D1=81
=D0=B2=D0=BD=D0=B5=D1=88=D0=BD=D0=B5=D1=82=D0=BE=D1=80=D0=B3=D0= =BE=D0=B2=D0=BE=D0=B9=20 = =D0=B4=D0=B5=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D1=81=D1=82=D1=8C=D1= =8E, =D0=BF=D0=BE=D0=BB=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC =D0=B8 = =D0=BF=D1=80=D0=B5=D0=B4=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0= =B8=D0=B5=D0=BC =D0=BA=D1=80=D0=B5=D0=B4=D0=B8=D1=82=D0=BE=D0=B2 =D0=B8=20 =D0=B7=D0=B0=D0=B9=D0=BC=D0=BE=D0=B2.
=D0=9F=D0=B0=D1=81=D0=BF=D0=BE=D1=80=D1=82 = =D1=81=D0=B4=D0=B5=D0=BB=D0=BA=D0=B8: = =D0=9E=D1=84=D0=BE=D1=80=D0=BC=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 =D0=B8=20 =D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D0=B0=D1=81=D0=BF=D0=BE=D1=80=D1=82=D0=B0 = =D1=81=D0=B4=D0=B5=D0=BB=D0=BA=D0=B8 =D0=B2 = =D1=86=D0=B5=D0=BB=D1=8F=D1=85 = =D0=BE=D0=B1=D0=B5=D1=81=D0=BF=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D1=83=D1=87=D0=B5=D1=82=D0=B0 =D0=B8 = =D0=BE=D1=82=D1=87=D0=B5=D1=82=D0=BD=D0=BE=D1=81=D1=82=D0=B8
=D0=B8=20 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1= =8F =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F =D0=BF=D0=BE = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D0=BC = =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D1=8F=D0=BC = =D0=BC=D0=B5=D0=B6=D0=B4=D1=83 = =D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8=20 = =D0=B8
=D0=BD=D0=B5=D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0= =B0=D0=BC=D0=B8. = =D0=9F=D1=80=D0=B5=D0=B4=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B5 =D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B2 = =D1=83=D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B5=D0=BD=D0=BD=D1= =8B=D0=B9 =D0=B1=D0=B0=D0=BD=D0=BA=20 =D1=81=D0=BF=D1=80=D0=B0=D0=B2=D0=BA=D0=B8 =D0=BE = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85
=D0=BE=D0=BF=D0=B5=D1= =80=D0=B0=D1=86=D0=B8=D1=8F=D1=85 =D0=B8 = =D1=81=D0=BF=D1=80=D0=B0=D0=B2=D0=BA=D0=B8 =D0=BE = =D0=BF=D0=BE=D0=B4=D1=82=D0=B2=D0=B5=D1=80=D0=B6=D0=B4=D0=B0=D1=8E=D1=89=D0= =B8=D1=85 =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D0=B0=D1=85 = =D0=BF=D1=80=D0=B8=20 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B8 = =D0=B2=D0=BD=D0=B5=D1=88=D0=BD=D0=B5=D1=82=D0=BE=D1=80=D0=B3=D0=BE=D0=B2=D0= =BE=D0=B9
=D0=B4=D0=B5=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D1=81= =D1=82=D0=B8.
4.=D0=9A=D0=BB=D0=B0=D1=81=D1=81=D0=B8=D1=84=D0=B8=D0=BA=D0= =B0=D1=86=D0=B8=D1=8F =D0=B8 = =D1=81=D0=BE=D0=B4=D0=B5=D1=80=D0=B6=D0=B0=D0=BD=D0=B8=D0=B5 = =D0=BF=D1=80=D0=B0=D0=B2=D0=BE=D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0= =B8=D0=B9 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE=20 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D1=81 = =D1=83=D1=87=D0=B5=D1=82=D0=BE=D0=BC
=D0=BF=D0=BE=D1=81=D0=BB=D0=B5=D0= =B4=D0=BD=D0=B8=D1=85 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D0=BE=D0=B9 = =D0=BF=D1=80=D0=B0=D0=B2=D0=BE=D0=B2=D0=BE=D0=B9=20 =D0=B1=D0=B0=D0=B7=D1=8B. =
=D0=93=D0=BE=D1=81=D1=83=D0=B4=D0=B0=D1=80=D1=81=D1=82=D0=B2=D0=B5= =D0=BD=D0=BD=D1=8B=D0=B9 = =D1=84=D0=B8=D0=BD=D0=B0=D0=BD=D1=81=D0=BE=D0=B2=D1=8B=D0=B9 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8C =D0=B7=D0=B0 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B5=D0=BC=20 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85 = =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B9 = =D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B8
=D0=BD=D0=B5=D1=80=D0=B5=D0=B7=D0=B8=D0=B4=D0=B5=D0=BD=D1=82=D0= =B0=D0=BC=D0=B8, =D0=BD=D0=B5 = =D1=8F=D0=B2=D0=BB=D1=8F=D1=8E=D1=89=D0=B8=D0=BC=D0=B8=D1=81=D1=8F=20 =D0=BA=D1=80=D0=B5=D0=B4=D0=B8=D1=82=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D1=8F=D0=BC=D0= =B8 =D0=B8 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=B1=D0=B8=D1=80=D0=B6=D0=B0=D0=BC=D0=B8. = =D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B2
=D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0= =B9=20 =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =D0=BE=D1=82 08.12.2003 = =D0=B3=D0=BE=D0=B4=D0=B0 =E2=84=96 164-=D0=A4=D0=97 "=D0=9E=D0=B1 = =D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=B0=D1=85 = =D0=B3=D0=BE=D1=81=D1=83=D0=B4=D0=B0=D1=80=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0= =BD=D0=BE=D0=B3=D0=BE=20 = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1= =8F
=D0=B2=D0=BD=D0=B5=D1=88=D0=BD=D0=B5=D1=82=D0=BE=D1=80=D0=B3=D0=BE= =D0=B2=D0=BE=D0=B9 = =D0=B4=D0=B5=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D1=81=D1=82=D0=B8"= , =D0=B2 =D0=9A=D0=BE=D0=B4=D0=B5=D0=BA=D1=81 = =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B9=D1=81=D0=BA=D0=BE=D0=B9=20 =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B8 = =D0=BE=D0=B1 = =D0=B0=D0=B4=D0=BC=D0=B8=D0=BD=D0=B8=D1=81=D1=82=D1=80=D0=B0=D1=82=D0=B8=D0= =B2=D0=BD=D1=8B=D1=85
=D0=BF=D1=80=D0=B0=D0=B2=D0=BE=D0=BD=D0=B0=D1=80= =D1=83=D1=88=D0=B5=D0=BD=D0=B8=D1=8F=D1=85, =D0=B2 = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B9 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =D0=BE=D1=82=20 10.12.2003 =D0=B3=D0=BE=D0=B4=D0=B0 =E2=84=96 173-=D0=A4=D0=97 = "=D0=9E =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=BC = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0= =B8
=D0=B8 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=BC = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D0=B5"=20 =D0=B8 =D0=B4=D1=80=D1=83=D0=B3=D0=B8=D0=B5 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D1=8B=D0=B5 = =D0=BF=D1=80=D0=B0=D0=B2=D0=BE=D0=B2=D1=8B=D0=B5 = =D0=B0=D0=BA=D1=82=D1=8B, = =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5 =D1=81 = =D0=BF=D1=80=D0=B8=D0=BD=D1=8F=D1=82=D0=B8=D0=B5=D0=BC
=D1=84=D0=B5=D0= =B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D1=85=20 =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B2. = =D0=92=D1=8B=D1=8F=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 =D0=B8 = =D0=BF=D1=80=D0=B5=D1=81=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE=20 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0
=D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B9=D1=81=D0=BA= =D0=BE=D0=B9 =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B8 = =D0=B8 =D0=B0=D0=BA=D1=82=D0=BE=D0=B2 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=BE=D0=B2 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE=20 = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1= =8F.
5.=D0=9E=D1=82=D0=B2=D0=B5=D1=82=D1=81=D1=82=D0=B2=D0= =B5=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D1=8C =D0=B7=D0=B0 = =D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE=20 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D0=B8 =D0=B0=D0=BA=D1=82=D0=BE=D0=B2 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=BE=D0=B2=20 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE
=D1=80=D0=B5=D0= =B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F.
=D0= =9C=D0=B8=D0=BD=D0=B8=D0=BC=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D1=8F = =D1=80=D0=B8=D1=81=D0=BA=D0=BE=D0=B2, = =D1=81=D0=B2=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D1=8B=D1=85 =D1=81=20 =D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5=D0=BC = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D1=8B=D1=85 = =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B9 =D0=BF=D1=80=D0=B8 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B8
=D0=B2=D0=BD=D0=B5=D1=88=D0=BD=D0=B5=D1=8D=D0=BA=D0=BE=D0=BD=D0=BE= =D0=BC=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=BE=D0=B9=20 = =D0=B4=D0=B5=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D1=81=D1=82=D0=B8.= = =D0=9F=D1=80=D0=B5=D0=B4=D1=83=D0=BF=D1=80=D0=B5=D0=B6=D0=B4=D0=B5=D0=BD=D0= =B8=D0=B5 = =D0=BF=D1=80=D0=B0=D0=B2=D0=BE=D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0= =B8=D0=B9 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE
=D0=B7=D0=B0=D0= =BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2= =D0=B0=20 =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B9=D1=81=D0=BA=D0=BE=D0=B9 = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B8 =D0=B8 = =D0=B0=D0=BA=D1=82=D0=BE=D0=B2 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=BE=D0=B2 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1= =8F.
=D0=9A=D0=BE=D0=BC=D0=BF=D0=BB=D0=B5=D0=BA=D1=81=20 =D0=BC=D0=B5=D1=80 =D0=BF=D0=BE = =D1=81=D0=BE=D0=B7=D0=B4=D0=B0=D0=BD=D0=B8=D1=8E = =D0=B2=D0=BD=D1=83=D1=82=D1=80=D0=B8=D1=84=D0=B8=D1=80=D0=BC=D0=B5=D0=BD=D0= =BD=D0=BE=D0=B9 =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D1=8B = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F.=20 = =D0=9C=D0=B5=D1=81=D1=82=D0=BE
=D0=B2=D0=BD=D1=83=D1=82=D1=80=D0=B8=D1= =84=D0=B8=D1=80=D0=BC=D0=B5=D0=BD=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D1=8B = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F =D0=B2 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0= =BD=D0=BE=D0=B9=20 = =D1=81=D1=82=D1=80=D1=83=D0=BA=D1=82=D1=83=D1=80=D0=B5
=D0=BF=D1=80=D0= =B5=D0=B4=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F = (=D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B8). = =D0=A2=D1=80=D0=B5=D0=B1=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D0=B0 =D0=BA=20 =D1=83=D1=81=D0=BB=D0=BE=D0=B2=D0=B8=D1=8F=D0=BC = =D0=B7=D0=B0=D0=BA=D0=BB=D1=8E=D1=87=D0=B0=D0=B5=D0=BC=D1=8B=D1=85 = =D0=B2=D0=BE
=D0=B2=D0=BD=D0=B5=D1=88=D0=BD=D0=B5=D1=82=D0=BE=D1=80=D0= =B3=D0=BE=D0=B2=D0=BE=D0=B9 = =D0=B4=D0=B5=D1=8F=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D0=BE=D1=81=D1=82=D0=B8 = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=BE=D0=B2=20 (=D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BE=D0=B2). =
6.=D0=9F=D0=BE=D1=80=D1=8F=D0=B4=D0=BE=D0=BA = =D0=B2=D0=B7=D0=B0=D0=B8=D0=BC=D0=BE=D0=B4=D0=B5=D0=B9=D1=81=D1=82=D0=B2=D0= =B8=D1=8F = =D0=A0=D0=BE=D1=81=D1=84=D0=B8=D0=BD=D0=BD=D0=B0=D0=B4=D0=B7=D0=BE=D1=80=D0= =B0 =D1=81 =D0=91=D0=B0=D0=BD=D0=BA=D0=BE=D0=BC = =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B8,=20 =D1=82=D0=B0=D0=BC=D0=BE=D0=B6=D0=B5=D0=BD=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=B8 = =D0=BD=D0=B0=D0=BB=D0=BE=D0=B3=D0=BE=D0=B2=D1=8B=D0=BC=D0=B8
=D0=BE=D1= =80=D0=B3=D0=B0=D0=BD=D0=B0=D0=BC=D0=B8, = =D1=83=D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B5=D0=BD=D0=BD=D1= =8B=D0=BC=D0=B8 =D0=B1=D0=B0=D0=BD=D0=BA=D0=B0=D0=BC=D0=B8, =D0=B0 = =D1=82=D0=B0=D0=BA=D0=B6=D0=B5=20 = =D0=BF=D1=80=D0=BE=D1=84=D0=B5=D1=81=D1=81=D0=B8=D0=BE=D0=BD=D0=B0=D0=BB=D1= =8C=D0=BD=D1=8B=D0=BC=D0=B8 = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=BD=D0=B8=D0=BA=D0=B0=D0=BC=D0=B8 = =D1=80=D1=8B=D0=BD=D0=BA=D0=B0
=D1=86=D0=B5=D0=BD=D0=BD=D1=8B=D1=85 = =D0=B1=D1=83=D0=BC=D0=B0=D0=B3, =D0=BA=D0=B0=D0=BA = =D0=B0=D0=B3=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8=20 =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F.
=D0=9F=D1=80=D0=B0=D0=B2=D0=B8=D0=BB=D0=B0 = =D0=BF=D1=80=D0=B5=D0=B4=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1= =8F=20 =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=B0=D0=BC=D0=B8 =D0=B8 = =D0=B0=D0=B3=D0=B5=D0=BD=D1=82=D0=B0=D0=BC=D0=B8 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F =D0=B2 = =D1=83=D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B5=D0=BD=D0=BD=D1= =8B=D0=B9
=D0=9F=D1=80=D0=B0=D0=B2=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D1=81= =D1=82=D0=B2=D0=BE=D0=BC=20 =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B9=D1=81=D0=BA=D0=BE=D0=B9 = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D1=86=D0=B8=D0=B8 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F = (=D0=A0=D0=BE=D1=81=D1=84=D0=B8=D0=BD=D0=BD=D0=B0=D0=B4=D0=B7=D0=BE=D1=80= )=20 = =D0=BD=D0=B5=D0=BE=D0=B1=D1=85=D0=BE=D0=B4=D0=B8=D0=BC=D1=8B=D1=85
=D0= =B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D0=BE=D0=B2 =D0=B8 = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=B8. = =D0=9E=D1=82=D0=B4=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D0=B5 = =D0=B2=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D1=8B = =D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D1=8C=D0=B7=D1=83=D0=B5=D0=BC=D1=8B=D1=85 = =D0=B2=20 =D1=81=D1=84=D0=B5=D1=80=D0=B5 = =D0=B2=D0=B0=D0=BB=D1=8E=D1=82=D0=BD=D0=BE=D0=B3=D0=BE = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8F
=D0=B8=D0=BD=D1=84=D0= =BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D1=8B=D1=85 = =D1=82=D0=B5=D1=85=D0=BD=D0=BE=D0=BB=D0=BE=D0=B3=D0=B8=D0=B9. = =D0=9F=D0=BB=D0=B0=D0=BD=D0=B8=D1=80=D1=83=D0=B5=D0=BC=D1=8B=D0=B5=20 =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F, = =D0=BA=D0=B0=D1=81=D0=B0=D1=8E=D1=89=D0=B8=D0=B5=D1=81=D1=8F = =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BD=D0=BE=D0=B2=D0=BE=D0=B3=D0=BE
=D0=BF=D0=BE=D1=80=D1=8F=D0=B4=D0= =BA=D0=B0 =D0=BF=D0=B5=D1=80=D0=B5=D0=B4=D0=B0=D1=87=D0=B8 = =D0=B4=D0=BE=D0=BA=D1=83=D0=BC=D0=B5=D0=BD=D1=82=D0=BE=D0=B2 =D0=B8=20 =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=B8 = =D0=BC=D0=B5=D0=B6=D0=B4=D1=83 =D0=91=D0=B0=D0=BD=D0=BA=D0=BE=D0=BC = =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B8, = =D1=83=D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B5=D0=BD=D0=BD=D1= =8B=D0=BC=D0=B8 =D0=B1=D0=B0=D0=BD=D0=BA=D0=B0=D0=BC=D0=B8=20 = =D0=B8
=D0=A0=D0=BE=D1=81=D1=84=D0=B8=D0=BD=D0=BD=D0=B0=D0=B4=D0=B7=D0= =BE=D1=80=D0=BE=D0=BC; =D0=BC=D0=B5=D0=B6=D0=B4=D1=83 = =D0=A4=D0=A1=D0=A1=D0=9F =D0=A0=D0=BE=D1=81=D1=81=D0=B8=D0=B8 =D0=B8 = =D0=A0=D0=BE=D1=81=D1=84=D0=B8=D0=BD=D0=BD=D0=B0=D0=B4=D0=B7=D0=BE=D1=80=D0= =BE=D0=BC; =D0=BC=D0=B5=D0=B6=D0=B4=D1=83 = =D1=82=D0=B0=D0=BC=D0=BE=D0=B6=D0=B5=D0=BD=D0=BD=D1=8B=D0=BC=D0=B8=20 =D0=B8 = =D0=BD=D0=B0=D0=BB=D0=BE=D0=B3=D0=BE=D0=B2=D1=8B=D0=BC=D0=B8
=D0=BE=D1= =80=D0=B3=D0=B0=D0=BD=D0=B0=D0=BC=D0=B8 =D0=B8 = =D0=A0=D0=BE=D1=81=D1=84=D0=B8=D0=BD=D0=BD=D0=B0=D0=B4=D0=B7=D0=BE=D1=80=D0= =BE=D0=BC.
 


=D0=A3=D1=87=D0=B0=D1=81=D1=82=D0=B8=D0=B5 = =D1=81=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D1=8F=D0=B5=D1=82: 11800 = =D1=80=D1=83=D0=B1=D0=BB=D0=B5=D0=B9.
=D0=92=20 =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D0=B5 = =D0=B2=D0=BA=D0=BB=D1=8E=D1=87=D0=B5=D0=BD=D0=BE: = =D0=BC=D0=B5=D1=82=D0=BE=D0=B4=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D0=B9 = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB, = =D0=BE=D0=B1=D0=B5=D0=B4=D1=8B, = =D0=BA=D0=BE=D1=84=D0=B5-=D0=BF=D0=B0=D1=83=D0=B7=D1=8B.
=D0=9F=D0=BE=D1= =81=D0=BB=D0=B5=20 =D0=BE=D0=BA=D0=BE=D0=BD=D1=87=D0=B0=D0=BD=D0=B8=D1=8F = =D0=B7=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D1=8F =D0=92=D0=B0=D0=BC = =D0=B2=D1=8B=D0=B4=D0=B0=D0=B5=D1=82=D1=81=D1=8F = =D1=81=D0=B5=D1=80=D1=82=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=82 = =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=BD=D0=BE=D0= =B3=D0=BE=20 = =D0=BE=D0=B1=D1=80=D0=B0=D0=B7=D1=86=D0=B0.
=D0=98=D0=BD=D0=BE=D0=B3=D0= =BE=D1=80=D0=BE=D0=B4=D0=BD=D0=B8=D0=BC = =D1=83=D1=87=D0=B0=D1=81=D1=82=D0=BD=D0=B8=D0=BA=D0=B0=D0=BC = =D0=BF=D0=BE=D0=BC=D0=BE=D0=B3=D0=B0=D0=B5=D0=BC =D0=B2 = =D0=B1=D1=80=D0=BE=D0=BD=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B8 = = =D0=B3=D0=BE=D1=81=D1=82=D0=B8=D0=BD=D0=B8=D1=86=D1=8B.
 <= /P>

      
             
------=_NextPart_000_0047_01D121CF.401CC830-- From jack@suse.cz Wed Nov 18 04:41:08 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 945917F37 for ; Wed, 18 Nov 2015 04:41:08 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1C293AC006 for ; Wed, 18 Nov 2015 02:41:04 -0800 (PST) X-ASG-Debug-ID: 1447843260-04cbb0605eff1f0001-NocioJ Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id 5SUIO64LOGV1JTCx (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 18 Nov 2015 02:41:02 -0800 (PST) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 9C556ACD7; Wed, 18 Nov 2015 10:40:35 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 721F682827; Wed, 18 Nov 2015 11:40:55 +0100 (CET) Date: Wed, 18 Nov 2015 11:40:55 +0100 From: Jan Kara To: Ross Zwisler Cc: Dan Williams , Andreas Dilger , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Message-ID: <20151118104055.GA6097@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> <20151116200950.GB9737@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151116200950.GB9737@linux.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mx2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1447843261 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24503 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon 16-11-15 13:09:50, Ross Zwisler wrote: > On Fri, Nov 13, 2015 at 06:32:40PM -0800, Dan Williams wrote: > > On Fri, Nov 13, 2015 at 4:43 PM, Andreas Dilger wrote: > > > On Nov 13, 2015, at 5:20 PM, Dan Williams wrote: > > >> > > >> On Fri, Nov 13, 2015 at 4:06 PM, Ross Zwisler > > >> wrote: > > >>> Currently the PMEM driver doesn't accept REQ_FLUSH or REQ_FUA bios. These > > >>> are sent down via blkdev_issue_flush() in response to a fsync() or msync() > > >>> and are used by filesystems to order their metadata, among other things. > > >>> > > >>> When we get an msync() or fsync() it is the responsibility of the DAX code > > >>> to flush all dirty pages to media. The PMEM driver then just has issue a > > >>> wmb_pmem() in response to the REQ_FLUSH to ensure that before we return all > > >>> the flushed data has been durably stored on the media. > > >>> > > >>> Signed-off-by: Ross Zwisler > > >> > > >> Hmm, I'm not seeing why we need this patch. If the actual flushing of > > >> the cache is done by the core why does the driver need support > > >> REQ_FLUSH? Especially since it's just a couple instructions. REQ_FUA > > >> only makes sense if individual writes can bypass the "drive" cache, > > >> but no I/O submitted to the driver proper is ever cached we always > > >> flush it through to media. > > > > > > If the upper level filesystem gets an error when submitting a flush > > > request, then it assumes the underlying hardware is broken and cannot > > > be as aggressive in IO submission, but instead has to wait for in-flight > > > IO to complete. > > > > Upper level filesystems won't get errors when the driver does not > > support flush. Those requests are ended cleanly in > > generic_make_request_checks(). Yes, the fs still needs to wait for > > outstanding I/O to complete but in the case of pmem all I/O is > > synchronous. There's never anything to await when flushing at the > > pmem driver level. > > > > > Since FUA/FLUSH is basically a no-op for pmem devices, > > > it doesn't make sense _not_ to support this functionality. > > > > Seems to be a nop either way. Given that DAX may lead to dirty data > > pending to the device in the cpu cache that a REQ_FLUSH request will > > not touch, its better to leave it all to the mm core to handle. I.e. > > it doesn't make sense to call the driver just for two instructions > > (sfence + pcommit) when the mm core is taking on the cache flushing. > > Either handle it all in the mm or the driver, not a mixture. > > Does anyone know if ext4 and/or XFS alter their algorithms based on whether > the driver supports REQ_FLUSH/REQ_FUA? Will the filesystem behave more > efficiently with respect to their internal I/O ordering, etc., if PMEM > advertises REQ_FLUSH/REQ_FUA support, even though we could do the same thing > at the DAX layer? So the information whether the driver supports FLUSH / FUA is generally ignored by filesystems. We issue REQ_FLUSH / REQ_FUA requests to achieve required ordering for fs consistency and expect that block layer does the right thing - i.e., if the device has volatile write cache, it will be flushed, if it doesn't have it, the request will be ignored. So the difference between supporting and not supporting REQ_FLUSH / REQ_FUA is only in how block layer handles such requests. Honza -- Jan Kara SUSE Labs, CR From agruenba@redhat.com Wed Nov 18 07:09:54 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 303A47F37 for ; Wed, 18 Nov 2015 07:09:54 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 142CE304032 for ; Wed, 18 Nov 2015 05:09:51 -0800 (PST) X-ASG-Debug-ID: 1447852189-04cb6c0cd2dc040001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id S178HONJZOThCanF (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 18 Nov 2015 05:09:50 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 547FFC10045A; Wed, 18 Nov 2015 13:09:49 +0000 (UTC) Received: from nux.redhat.com (vpn1-4-30.ams2.redhat.com [10.36.4.30]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAID9klh006345; Wed, 18 Nov 2015 08:09:47 -0500 From: Andreas Gruenbacher To: david@fromorbit.com, xfs@oss.sgi.com Cc: Andreas Gruenbacher Subject: Re: [PATCH] xfs_repair: Check for invalid ACL types Date: Wed, 18 Nov 2015 14:09:45 +0100 X-ASG-Orig-Subj: Re: [PATCH] xfs_repair: Check for invalid ACL types Message-Id: <1447852185-6309-1-git-send-email-agruenba@redhat.com> References: <1445627828-14661-1-git-send-email-agruenba@redhat.com> <1445627828-14661-5-git-send-email-agruenba@redhat.com> <20151026225520.GK8773@dastard> <1445909032-10974-1-git-send-email-agruenba@redhat.com> In-Reply-To: <1445909032-10974-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447852190 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Here's a follow-up patch to test a filesystem for richacl support. -- Subject: xfs_db: Report when richacls are supported When the richacl incompatible filesystem feature is set, include the word RICHACL in the output of "xfs_db [-r] -c version". Signed-off-by: Andreas Gruenbacher --- db/sb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/db/sb.c b/db/sb.c index 17d446c..ff6c1f8 100644 --- a/db/sb.c +++ b/db/sb.c @@ -690,6 +690,8 @@ version_string( strcat(s, ",FTYPE"); if (xfs_sb_version_hasfinobt(sbp)) strcat(s, ",FINOBT"); + if (xfs_sb_has_incompat_feature(sbp, XFS_SB_FEAT_INCOMPAT_RICHACL)) + strcat(s, ",RICHACL"); if (xfs_sb_version_hassparseinodes(sbp)) strcat(s, ",SPARSE_INODES"); if (xfs_sb_version_hasmetauuid(sbp)) -- 2.5.0 From agruenba@redhat.com Wed Nov 18 08:17:57 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 468757F37 for ; Wed, 18 Nov 2015 08:17:57 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id CB3ACAC004 for ; Wed, 18 Nov 2015 06:17:56 -0800 (PST) X-ASG-Debug-ID: 1447856275-04cb6c0cd2de0c0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id h1OM2a55EbJ8sSGj (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 18 Nov 2015 06:17:55 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id E68BF461C0 for ; Wed, 18 Nov 2015 14:17:54 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-27.ams2.redhat.com [10.36.5.27]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAIEHoXb027334; Wed, 18 Nov 2015 09:17:53 -0500 From: Andreas Gruenbacher To: xfs@oss.sgi.com Cc: Andreas Gruenbacher Subject: [XFSTESTS 1/6] check: Don't complain about missing tests/$FSTYP/group Date: Wed, 18 Nov 2015 15:17:44 +0100 X-ASG-Orig-Subj: [XFSTESTS 1/6] check: Don't complain about missing tests/$FSTYP/group Message-Id: <1447856269-7872-2-git-send-email-agruenba@redhat.com> In-Reply-To: <1447856269-7872-1-git-send-email-agruenba@redhat.com> References: <1447856269-7872-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447856275 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 When filesystems don't have filesystem specific tests, those nonexistent tests also won't have a group file. Signed-off-by: Andreas Gruenbacher --- check | 2 ++ 1 file changed, 2 insertions(+) diff --git a/check b/check index 8281322..4a9b332 100755 --- a/check +++ b/check @@ -95,6 +95,8 @@ get_group_list() grp=$1 for d in $SRC_GROUPS $FSTYP; do + [ -e "$SRC_DIR/$d/group" ] || continue + l=$(sed -n < $SRC_DIR/$d/group \ -e 's/#.*//' \ -e 's/$/ /' \ -- 2.5.0 From agruenba@redhat.com Wed Nov 18 08:17:57 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A56DE7F37 for ; Wed, 18 Nov 2015 08:17:57 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5490DAC003 for ; Wed, 18 Nov 2015 06:17:57 -0800 (PST) X-ASG-Debug-ID: 1447856272-04bdf07f08f5670001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id FCytPUeyFybRpjED (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 18 Nov 2015 06:17:53 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id DF296C00230B for ; Wed, 18 Nov 2015 14:17:52 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-27.ams2.redhat.com [10.36.5.27]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAIEHoXa027334; Wed, 18 Nov 2015 09:17:51 -0500 From: Andreas Gruenbacher To: xfs@oss.sgi.com Cc: Andreas Gruenbacher Subject: [XFSTESTS 0/6] Richacl Tests Date: Wed, 18 Nov 2015 15:17:43 +0100 X-ASG-Orig-Subj: [XFSTESTS 0/6] Richacl Tests Message-Id: <1447856269-7872-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447856273 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Here is a first set of patches for adding richacl tests to xfstexts. The richacl tests are different from the other xfstests in that they are self verifying: they report success or failure through their exit code and don't have expected output files (*.out). Thanks, Andreas Andreas Gruenbacher (6): check: Don't complain about missing tests/$FSTYP/group check: Enforce xfs filesystem recreation on $TEST_DEV Rename output file templates to match TEST.out* check: Add support for tests without *.out files Add richacl tests Remove the obsolete nfs4acl tests .gitignore | 17 ++ check | 118 +++++++++---- common/rc | 24 ++- nfs4acl/Makefile | 29 ---- nfs4acl/apply-mask.test | 143 ---------------- nfs4acl/basic.test | 70 -------- nfs4acl/chmod.test | 31 ---- nfs4acl/chown.test | 63 ------- nfs4acl/computed-mode.test | 62 ------- nfs4acl/create.test | 35 ---- nfs4acl/ctime.test | 36 ---- nfs4acl/delete.test | 77 --------- nfs4acl/run | 298 --------------------------------- nfs4acl/unrepresentable.test | 20 --- nfs4acl/write-vs-append.test | 46 ----- src/Makefile | 2 +- src/require-richacls.c | 35 ++++ tests/richacl/001-apply-masks | 1 + tests/richacl/002-auto-inheritance | 1 + tests/richacl/003-basic | 1 + tests/richacl/004-chmod | 1 + tests/richacl/005-chown | 1 + tests/richacl/006-create | 1 + tests/richacl/007-ctime | 1 + tests/richacl/008-delete | 1 + tests/richacl/009-setrichacl-modify | 1 + tests/richacl/010-write-vs-append | 1 + tests/richacl/Makefile | 44 +++++ tests/richacl/apply-masks | 163 ++++++++++++++++++ tests/richacl/auto-inheritance | 191 +++++++++++++++++++++ tests/richacl/basic | 97 +++++++++++ tests/richacl/chmod | 40 +++++ tests/richacl/chown | 42 +++++ tests/richacl/create | 36 ++++ tests/richacl/ctime | 35 ++++ tests/richacl/delete | 89 ++++++++++ tests/richacl/group | 15 ++ tests/richacl/setrichacl-modify | 57 +++++++ tests/richacl/test-lib.sh | 149 +++++++++++++++++ tests/richacl/write-vs-append | 54 ++++++ tests/xfs/033 | 2 +- tests/xfs/033.crc.out.linux | 197 ---------------------- tests/xfs/033.out.crc.linux | 197 ++++++++++++++++++++++ tests/xfs/096 | 4 +- tests/xfs/096.external | 50 ------ tests/xfs/096.internal | 51 ------ tests/xfs/096.out.external | 50 ++++++ tests/xfs/096.out.internal | 51 ++++++ tests/xfs/191 | 75 --------- tests/xfs/191.out | 324 ------------------------------------ tests/xfs/group | 1 - 51 files changed, 1485 insertions(+), 1645 deletions(-) delete mode 100644 nfs4acl/Makefile delete mode 100644 nfs4acl/apply-mask.test delete mode 100644 nfs4acl/basic.test delete mode 100644 nfs4acl/chmod.test delete mode 100644 nfs4acl/chown.test delete mode 100644 nfs4acl/computed-mode.test delete mode 100644 nfs4acl/create.test delete mode 100644 nfs4acl/ctime.test delete mode 100644 nfs4acl/delete.test delete mode 100755 nfs4acl/run delete mode 100644 nfs4acl/unrepresentable.test delete mode 100644 nfs4acl/write-vs-append.test create mode 100644 src/require-richacls.c create mode 120000 tests/richacl/001-apply-masks create mode 120000 tests/richacl/002-auto-inheritance create mode 120000 tests/richacl/003-basic create mode 120000 tests/richacl/004-chmod create mode 120000 tests/richacl/005-chown create mode 120000 tests/richacl/006-create create mode 120000 tests/richacl/007-ctime create mode 120000 tests/richacl/008-delete create mode 120000 tests/richacl/009-setrichacl-modify create mode 120000 tests/richacl/010-write-vs-append create mode 100644 tests/richacl/Makefile create mode 100755 tests/richacl/apply-masks create mode 100755 tests/richacl/auto-inheritance create mode 100755 tests/richacl/basic create mode 100755 tests/richacl/chmod create mode 100755 tests/richacl/chown create mode 100755 tests/richacl/create create mode 100755 tests/richacl/ctime create mode 100755 tests/richacl/delete create mode 100644 tests/richacl/group create mode 100755 tests/richacl/setrichacl-modify create mode 100644 tests/richacl/test-lib.sh create mode 100755 tests/richacl/write-vs-append delete mode 100644 tests/xfs/033.crc.out.linux create mode 100644 tests/xfs/033.out.crc.linux delete mode 100644 tests/xfs/096.external delete mode 100644 tests/xfs/096.internal create mode 100644 tests/xfs/096.out.external create mode 100644 tests/xfs/096.out.internal delete mode 100755 tests/xfs/191 delete mode 100644 tests/xfs/191.out -- 2.5.0 From agruenba@redhat.com Wed Nov 18 08:18:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 545237F54 for ; Wed, 18 Nov 2015 08:18:01 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 35DC4304043 for ; Wed, 18 Nov 2015 06:17:58 -0800 (PST) X-ASG-Debug-ID: 1447856277-04bdf07f09f5680001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id NBLIpz0V12qXCC9l (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 18 Nov 2015 06:17:57 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 19FA946216 for ; Wed, 18 Nov 2015 14:17:57 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-27.ams2.redhat.com [10.36.5.27]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAIEHoXc027334; Wed, 18 Nov 2015 09:17:55 -0500 From: Andreas Gruenbacher To: xfs@oss.sgi.com Cc: Andreas Gruenbacher Subject: [XFSTESTS 2/6] check: Enforce xfs filesystem recreation on $TEST_DEV Date: Wed, 18 Nov 2015 15:17:45 +0100 X-ASG-Orig-Subj: [XFSTESTS 2/6] check: Enforce xfs filesystem recreation on $TEST_DEV Message-Id: <1447856269-7872-3-git-send-email-agruenba@redhat.com> In-Reply-To: <1447856269-7872-1-git-send-email-agruenba@redhat.com> References: <1447856269-7872-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447856277 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 When recreating xfs filesystems on $TEST_DEV, pass option -f to enforce the filesystem creation instead of refusing to overwrite existing xfs filesystems. We already do that for ext2/ext3/ext4 filesystems. Signed-off-by: Andreas Gruenbacher --- common/rc | 3 +++ 1 file changed, 3 insertions(+) diff --git a/common/rc b/common/rc index 4c2f42c..ce6ae3d 100644 --- a/common/rc +++ b/common/rc @@ -572,6 +572,9 @@ _test_mkfs() btrfs) $MKFS_BTRFS_PROG $MKFS_OPTIONS $* $TEST_DEV > /dev/null ;; + xfs) + $MKFS_PROG -t $FSTYP -- -f $MKFS_OPTIONS $* $TEST_DEV + ;; ext2|ext3|ext4) $MKFS_PROG -t $FSTYP -- -F $MKFS_OPTIONS $* $TEST_DEV ;; -- 2.5.0 From agruenba@redhat.com Wed Nov 18 08:18:02 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B1E7B7F55 for ; Wed, 18 Nov 2015 08:18:02 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 54359AC003 for ; Wed, 18 Nov 2015 06:18:02 -0800 (PST) X-ASG-Debug-ID: 1447856281-04bdf07f09f5690001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id hthQdt1RDMBqmLay (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 18 Nov 2015 06:18:01 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 2A81DF806C for ; Wed, 18 Nov 2015 14:18:01 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-27.ams2.redhat.com [10.36.5.27]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAIEHoXe027334; Wed, 18 Nov 2015 09:17:59 -0500 From: Andreas Gruenbacher To: xfs@oss.sgi.com Cc: Andreas Gruenbacher Subject: [XFSTESTS 4/6] check: Add support for tests without *.out files Date: Wed, 18 Nov 2015 15:17:47 +0100 X-ASG-Orig-Subj: [XFSTESTS 4/6] check: Add support for tests without *.out files Message-Id: <1447856269-7872-5-git-send-email-agruenba@redhat.com> In-Reply-To: <1447856269-7872-1-git-send-email-agruenba@redhat.com> References: <1447856269-7872-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447856281 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Add support for tests which report their status through their exit code instead of producing output that is compared with the expected output. When such a test returns with exit code 77, it is assumed to have been skipped; all other non-zero exit codes are treated as test failures. Signed-off-by: Andreas Gruenbacher --- check | 77 +++++++++++++++++++++++++++++++++++++++++++------------------------ 1 file changed, 50 insertions(+), 27 deletions(-) diff --git a/check b/check index 4a9b332..5ecc12b 100755 --- a/check +++ b/check @@ -204,6 +204,13 @@ _prepare_test_list() fi } +# Check if a test has any .out* files +has_out_files() +{ + set -- "$1".out* + [ $# -gt 0 -a -e "$1" ] +} + # Process command arguments first. while [ $# -gt 0 ]; do case "$1" in @@ -612,6 +619,13 @@ for section in $HOST_OPTIONS_SECTIONS; do err=true fi + if ! has_out_files $seq; then + if [ $sts -eq 77 ]; then + cat $tmp.out > $seqres.notrun + sts=0 + fi + fi + if [ -f $seqres.notrun ] then $timestamp || echo -n " [not run] " @@ -624,41 +638,50 @@ for section in $HOST_OPTIONS_SECTIONS; do echo -n " [failed, exit status $sts]" err=true fi - if [ ! -f $seq.out ] - then - echo " - no qualified output" - err=true - else - # coreutils 8.16+ changed quote formats in error messages from - # `foo' to 'foo'. Filter old versions to match the new version. - sed -i "s/\`/\'/g" $tmp.out - if diff $seq.out $tmp.out >/dev/null 2>&1 + if has_out_files $seq; then + if [ ! -f $seq.out ] then - if $err + echo " - no qualified output" + err=true + else + # coreutils 8.16+ changed quote formats in error messages from + # `foo' to 'foo'. Filter old versions to match the new version. + sed -i "s/\`/\'/g" $tmp.out + + if ! diff $seq.out $tmp.out >/dev/null 2>&1 then - : - else - echo "$seqnum `expr $stop - $start`" >>$tmp.time - echo -n " `expr $stop - $start`s" + echo " - output mismatch (see $seqres.out.bad)" + mv $tmp.out $seqres.out.bad + $diff $seq.out $seqres.out.bad | { + if test "$DIFF_LENGTH" -le 0; then + cat + else + head -n "$DIFF_LENGTH" + echo "..." + echo "(Run '$diff $seq.out $seqres.out.bad'" \ + " to see the entire diff)" + fi; } | \ + sed -e 's/^\(.\)/ \1/' + err=true fi - echo "" + fi + else + if ! $err; then + mv $tmp.out $seqres.out.good else - echo " - output mismatch (see $seqres.out.bad)" mv $tmp.out $seqres.out.bad - $diff $seq.out $seqres.out.bad | { - if test "$DIFF_LENGTH" -le 0; then - cat - else - head -n "$DIFF_LENGTH" - echo "..." - echo "(Run '$diff $seq.out $seqres.out.bad'" \ - " to see the entire diff)" - fi; } | \ - sed -e 's/^\(.\)/ \1/' - err=true + echo " - output (see $seqres.out.bad)" + cat $seqres.out.bad fi fi + + if ! $err; then + echo "$seqnum `expr $stop - $start`" >>$tmp.time + echo -n " `expr $stop - $start`s" + echo "" + fi + try="$try $seqnum" n_try=`expr $n_try + 1` _check_filesystems -- 2.5.0 From agruenba@redhat.com Wed Nov 18 08:18:02 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 833467F54 for ; Wed, 18 Nov 2015 08:18:02 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 37CE8304043 for ; Wed, 18 Nov 2015 06:18:02 -0800 (PST) X-ASG-Debug-ID: 1447856279-04bdf07f07f5680001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id EtwCeUC55ZGxC8EA (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 18 Nov 2015 06:17:59 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 157D38E226 for ; Wed, 18 Nov 2015 14:17:59 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-27.ams2.redhat.com [10.36.5.27]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAIEHoXd027334; Wed, 18 Nov 2015 09:17:57 -0500 From: Andreas Gruenbacher To: xfs@oss.sgi.com Cc: Andreas Gruenbacher Subject: [XFSTESTS 3/6] Rename output file templates to match TEST.out* Date: Wed, 18 Nov 2015 15:17:46 +0100 X-ASG-Orig-Subj: [XFSTESTS 3/6] Rename output file templates to match TEST.out* Message-Id: <1447856269-7872-4-git-send-email-agruenba@redhat.com> In-Reply-To: <1447856269-7872-1-git-send-email-agruenba@redhat.com> References: <1447856269-7872-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447856279 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Rename the expected output files so that they all match "$TEST_NAME.out*". That way, we can statically check if a test has any .out* files. Tests with multiple output file variants symlink $TEST_NAME.out to one of those variants. For those tests, add $TEST_NAME.out to .gitignore. Signed-off-by: Andreas Gruenbacher --- .gitignore | 16 ++++ tests/xfs/033 | 2 +- tests/xfs/033.crc.out.linux | 197 -------------------------------------------- tests/xfs/033.out.crc.linux | 197 ++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/096 | 4 +- tests/xfs/096.external | 50 ----------- tests/xfs/096.internal | 51 ------------ tests/xfs/096.out.external | 50 +++++++++++ tests/xfs/096.out.internal | 51 ++++++++++++ 9 files changed, 317 insertions(+), 301 deletions(-) delete mode 100644 tests/xfs/033.crc.out.linux create mode 100644 tests/xfs/033.out.crc.linux delete mode 100644 tests/xfs/096.external delete mode 100644 tests/xfs/096.internal create mode 100644 tests/xfs/096.out.external create mode 100644 tests/xfs/096.out.internal diff --git a/.gitignore b/.gitignore index 5dc4f69..7c25c41 100644 --- a/.gitignore +++ b/.gitignore @@ -195,3 +195,19 @@ /dmapi/src/suite2/src/test_invis /dmapi/src/suite2/src/test_region /dmapi/src/suite2/src/test_rights + +# Symlinked .out files +/tests/generic/088.out +/tests/generic/097.out +/tests/xfs/022.out +/tests/xfs/023.out +/tests/xfs/031.out +/tests/xfs/033.out +/tests/xfs/035.out +/tests/xfs/036.out +/tests/xfs/039.out +/tests/xfs/043.out +/tests/xfs/055.out +/tests/xfs/071.out +/tests/xfs/096.out +/tests/xfs/146.out diff --git a/tests/xfs/033 b/tests/xfs/033 index 576d437..4163964 100755 --- a/tests/xfs/033 +++ b/tests/xfs/033 @@ -85,7 +85,7 @@ _scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs # link correct .out file if [ $_fs_has_crcs -eq 1 ]; then - _link_out_file $seq.crc.out $seqfull.out + _link_out_file $seq.out.crc $seqfull.out else _link_out_file $seq.out $seqfull.out fi diff --git a/tests/xfs/033.crc.out.linux b/tests/xfs/033.crc.out.linux deleted file mode 100644 index a6e86b9..0000000 --- a/tests/xfs/033.crc.out.linux +++ /dev/null @@ -1,197 +0,0 @@ -QA output created by 033 -meta-data=DDEV isize=XXX agcount=N, agsize=XXX blks -data = bsize=XXX blocks=XXX, imaxpct=PCT - = sunit=XXX swidth=XXX, unwritten=X -naming =VERN bsize=XXX -log =LDEV bsize=XXX blocks=XXX -realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX -Corrupting root inode - setting bits to 0 -Wrote X.XXKb (value 0x0) -Phase 1 - find and verify superblock... -Phase 2 - using log - - zero log... - - scan filesystem freespace and inode maps... - - found root inode chunk -Phase 3 - for each AG... - - scan and clear agi unlinked lists... - - process known inodes and perform inode discovery... -bad magic number 0x0 on inode INO -bad version number 0x0 on inode INO -inode identifier 0 mismatch on inode INO -bad magic number 0x0 on inode INO, resetting magic number -bad version number 0x0 on inode INO, resetting version number -inode identifier 0 mismatch on inode INO -cleared root inode INO - - process newly discovered inodes... -Phase 4 - check for duplicate blocks... - - setting up duplicate extent list... -root inode lost - - check for inodes claiming duplicate blocks... -Phase 5 - rebuild AG headers and trees... - - reset superblock... -Phase 6 - check inode connectivity... -reinitializing root directory - - resetting contents of realtime bitmap and summary inodes - - traversing filesystem ... - - traversal finished ... - - moving disconnected inodes to lost+found ... -Phase 7 - verify and correct link counts... -resetting inode INO nlinks from 1 to 2 -done -Corrupting rt bitmap inode - setting bits to 0 -Wrote X.XXKb (value 0x0) -Phase 1 - find and verify superblock... -Phase 2 - using log - - zero log... - - scan filesystem freespace and inode maps... - - found root inode chunk -Phase 3 - for each AG... - - scan and clear agi unlinked lists... - - process known inodes and perform inode discovery... -bad magic number 0x0 on inode INO -bad version number 0x0 on inode INO -inode identifier 0 mismatch on inode INO -bad magic number 0x0 on inode INO, resetting magic number -bad version number 0x0 on inode INO, resetting version number -inode identifier 0 mismatch on inode INO -cleared realtime bitmap inode INO - - process newly discovered inodes... -Phase 4 - check for duplicate blocks... - - setting up duplicate extent list... - - check for inodes claiming duplicate blocks... -Phase 5 - rebuild AG headers and trees... - - reset superblock... -Phase 6 - check inode connectivity... -reinitializing realtime bitmap inode - - resetting contents of realtime bitmap and summary inodes - - traversing filesystem ... - - traversal finished ... - - moving disconnected inodes to lost+found ... -Phase 7 - verify and correct link counts... -done -Corrupting rt summary inode - setting bits to 0 -Wrote X.XXKb (value 0x0) -Phase 1 - find and verify superblock... -Phase 2 - using log - - zero log... - - scan filesystem freespace and inode maps... - - found root inode chunk -Phase 3 - for each AG... - - scan and clear agi unlinked lists... - - process known inodes and perform inode discovery... -bad magic number 0x0 on inode INO -bad version number 0x0 on inode INO -inode identifier 0 mismatch on inode INO -bad magic number 0x0 on inode INO, resetting magic number -bad version number 0x0 on inode INO, resetting version number -inode identifier 0 mismatch on inode INO -cleared realtime summary inode INO - - process newly discovered inodes... -Phase 4 - check for duplicate blocks... - - setting up duplicate extent list... - - check for inodes claiming duplicate blocks... -Phase 5 - rebuild AG headers and trees... - - reset superblock... -Phase 6 - check inode connectivity... -reinitializing realtime summary inode - - resetting contents of realtime bitmap and summary inodes - - traversing filesystem ... - - traversal finished ... - - moving disconnected inodes to lost+found ... -Phase 7 - verify and correct link counts... -done -Corrupting root inode - setting bits to -1 -Wrote X.XXKb (value 0xffffffff) -Phase 1 - find and verify superblock... -Phase 2 - using log - - zero log... - - scan filesystem freespace and inode maps... - - found root inode chunk -Phase 3 - for each AG... - - scan and clear agi unlinked lists... - - process known inodes and perform inode discovery... -bad magic number 0xffff on inode INO -bad version number 0xffffffff on inode INO -inode identifier 18446744073709551615 mismatch on inode INO -bad magic number 0xffff on inode INO, resetting magic number -bad version number 0xffffffff on inode INO, resetting version number -inode identifier 18446744073709551615 mismatch on inode INO -cleared root inode INO - - process newly discovered inodes... -Phase 4 - check for duplicate blocks... - - setting up duplicate extent list... -root inode lost - - check for inodes claiming duplicate blocks... -Phase 5 - rebuild AG headers and trees... - - reset superblock... -Phase 6 - check inode connectivity... -reinitializing root directory - - resetting contents of realtime bitmap and summary inodes - - traversing filesystem ... - - traversal finished ... - - moving disconnected inodes to lost+found ... -Phase 7 - verify and correct link counts... -resetting inode INO nlinks from 1 to 2 -done -Corrupting rt bitmap inode - setting bits to -1 -Wrote X.XXKb (value 0xffffffff) -Phase 1 - find and verify superblock... -Phase 2 - using log - - zero log... - - scan filesystem freespace and inode maps... - - found root inode chunk -Phase 3 - for each AG... - - scan and clear agi unlinked lists... - - process known inodes and perform inode discovery... -bad magic number 0xffff on inode INO -bad version number 0xffffffff on inode INO -inode identifier 18446744073709551615 mismatch on inode INO -bad magic number 0xffff on inode INO, resetting magic number -bad version number 0xffffffff on inode INO, resetting version number -inode identifier 18446744073709551615 mismatch on inode INO -cleared realtime bitmap inode INO - - process newly discovered inodes... -Phase 4 - check for duplicate blocks... - - setting up duplicate extent list... - - check for inodes claiming duplicate blocks... -Phase 5 - rebuild AG headers and trees... - - reset superblock... -Phase 6 - check inode connectivity... -reinitializing realtime bitmap inode - - resetting contents of realtime bitmap and summary inodes - - traversing filesystem ... - - traversal finished ... - - moving disconnected inodes to lost+found ... -Phase 7 - verify and correct link counts... -done -Corrupting rt summary inode - setting bits to -1 -Wrote X.XXKb (value 0xffffffff) -Phase 1 - find and verify superblock... -Phase 2 - using log - - zero log... - - scan filesystem freespace and inode maps... - - found root inode chunk -Phase 3 - for each AG... - - scan and clear agi unlinked lists... - - process known inodes and perform inode discovery... -bad magic number 0xffff on inode INO -bad version number 0xffffffff on inode INO -inode identifier 18446744073709551615 mismatch on inode INO -bad magic number 0xffff on inode INO, resetting magic number -bad version number 0xffffffff on inode INO, resetting version number -inode identifier 18446744073709551615 mismatch on inode INO -cleared realtime summary inode INO - - process newly discovered inodes... -Phase 4 - check for duplicate blocks... - - setting up duplicate extent list... - - check for inodes claiming duplicate blocks... -Phase 5 - rebuild AG headers and trees... - - reset superblock... -Phase 6 - check inode connectivity... -reinitializing realtime summary inode - - resetting contents of realtime bitmap and summary inodes - - traversing filesystem ... - - traversal finished ... - - moving disconnected inodes to lost+found ... -Phase 7 - verify and correct link counts... -done diff --git a/tests/xfs/033.out.crc.linux b/tests/xfs/033.out.crc.linux new file mode 100644 index 0000000..a6e86b9 --- /dev/null +++ b/tests/xfs/033.out.crc.linux @@ -0,0 +1,197 @@ +QA output created by 033 +meta-data=DDEV isize=XXX agcount=N, agsize=XXX blks +data = bsize=XXX blocks=XXX, imaxpct=PCT + = sunit=XXX swidth=XXX, unwritten=X +naming =VERN bsize=XXX +log =LDEV bsize=XXX blocks=XXX +realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX +Corrupting root inode - setting bits to 0 +Wrote X.XXKb (value 0x0) +Phase 1 - find and verify superblock... +Phase 2 - using log + - zero log... + - scan filesystem freespace and inode maps... + - found root inode chunk +Phase 3 - for each AG... + - scan and clear agi unlinked lists... + - process known inodes and perform inode discovery... +bad magic number 0x0 on inode INO +bad version number 0x0 on inode INO +inode identifier 0 mismatch on inode INO +bad magic number 0x0 on inode INO, resetting magic number +bad version number 0x0 on inode INO, resetting version number +inode identifier 0 mismatch on inode INO +cleared root inode INO + - process newly discovered inodes... +Phase 4 - check for duplicate blocks... + - setting up duplicate extent list... +root inode lost + - check for inodes claiming duplicate blocks... +Phase 5 - rebuild AG headers and trees... + - reset superblock... +Phase 6 - check inode connectivity... +reinitializing root directory + - resetting contents of realtime bitmap and summary inodes + - traversing filesystem ... + - traversal finished ... + - moving disconnected inodes to lost+found ... +Phase 7 - verify and correct link counts... +resetting inode INO nlinks from 1 to 2 +done +Corrupting rt bitmap inode - setting bits to 0 +Wrote X.XXKb (value 0x0) +Phase 1 - find and verify superblock... +Phase 2 - using log + - zero log... + - scan filesystem freespace and inode maps... + - found root inode chunk +Phase 3 - for each AG... + - scan and clear agi unlinked lists... + - process known inodes and perform inode discovery... +bad magic number 0x0 on inode INO +bad version number 0x0 on inode INO +inode identifier 0 mismatch on inode INO +bad magic number 0x0 on inode INO, resetting magic number +bad version number 0x0 on inode INO, resetting version number +inode identifier 0 mismatch on inode INO +cleared realtime bitmap inode INO + - process newly discovered inodes... +Phase 4 - check for duplicate blocks... + - setting up duplicate extent list... + - check for inodes claiming duplicate blocks... +Phase 5 - rebuild AG headers and trees... + - reset superblock... +Phase 6 - check inode connectivity... +reinitializing realtime bitmap inode + - resetting contents of realtime bitmap and summary inodes + - traversing filesystem ... + - traversal finished ... + - moving disconnected inodes to lost+found ... +Phase 7 - verify and correct link counts... +done +Corrupting rt summary inode - setting bits to 0 +Wrote X.XXKb (value 0x0) +Phase 1 - find and verify superblock... +Phase 2 - using log + - zero log... + - scan filesystem freespace and inode maps... + - found root inode chunk +Phase 3 - for each AG... + - scan and clear agi unlinked lists... + - process known inodes and perform inode discovery... +bad magic number 0x0 on inode INO +bad version number 0x0 on inode INO +inode identifier 0 mismatch on inode INO +bad magic number 0x0 on inode INO, resetting magic number +bad version number 0x0 on inode INO, resetting version number +inode identifier 0 mismatch on inode INO +cleared realtime summary inode INO + - process newly discovered inodes... +Phase 4 - check for duplicate blocks... + - setting up duplicate extent list... + - check for inodes claiming duplicate blocks... +Phase 5 - rebuild AG headers and trees... + - reset superblock... +Phase 6 - check inode connectivity... +reinitializing realtime summary inode + - resetting contents of realtime bitmap and summary inodes + - traversing filesystem ... + - traversal finished ... + - moving disconnected inodes to lost+found ... +Phase 7 - verify and correct link counts... +done +Corrupting root inode - setting bits to -1 +Wrote X.XXKb (value 0xffffffff) +Phase 1 - find and verify superblock... +Phase 2 - using log + - zero log... + - scan filesystem freespace and inode maps... + - found root inode chunk +Phase 3 - for each AG... + - scan and clear agi unlinked lists... + - process known inodes and perform inode discovery... +bad magic number 0xffff on inode INO +bad version number 0xffffffff on inode INO +inode identifier 18446744073709551615 mismatch on inode INO +bad magic number 0xffff on inode INO, resetting magic number +bad version number 0xffffffff on inode INO, resetting version number +inode identifier 18446744073709551615 mismatch on inode INO +cleared root inode INO + - process newly discovered inodes... +Phase 4 - check for duplicate blocks... + - setting up duplicate extent list... +root inode lost + - check for inodes claiming duplicate blocks... +Phase 5 - rebuild AG headers and trees... + - reset superblock... +Phase 6 - check inode connectivity... +reinitializing root directory + - resetting contents of realtime bitmap and summary inodes + - traversing filesystem ... + - traversal finished ... + - moving disconnected inodes to lost+found ... +Phase 7 - verify and correct link counts... +resetting inode INO nlinks from 1 to 2 +done +Corrupting rt bitmap inode - setting bits to -1 +Wrote X.XXKb (value 0xffffffff) +Phase 1 - find and verify superblock... +Phase 2 - using log + - zero log... + - scan filesystem freespace and inode maps... + - found root inode chunk +Phase 3 - for each AG... + - scan and clear agi unlinked lists... + - process known inodes and perform inode discovery... +bad magic number 0xffff on inode INO +bad version number 0xffffffff on inode INO +inode identifier 18446744073709551615 mismatch on inode INO +bad magic number 0xffff on inode INO, resetting magic number +bad version number 0xffffffff on inode INO, resetting version number +inode identifier 18446744073709551615 mismatch on inode INO +cleared realtime bitmap inode INO + - process newly discovered inodes... +Phase 4 - check for duplicate blocks... + - setting up duplicate extent list... + - check for inodes claiming duplicate blocks... +Phase 5 - rebuild AG headers and trees... + - reset superblock... +Phase 6 - check inode connectivity... +reinitializing realtime bitmap inode + - resetting contents of realtime bitmap and summary inodes + - traversing filesystem ... + - traversal finished ... + - moving disconnected inodes to lost+found ... +Phase 7 - verify and correct link counts... +done +Corrupting rt summary inode - setting bits to -1 +Wrote X.XXKb (value 0xffffffff) +Phase 1 - find and verify superblock... +Phase 2 - using log + - zero log... + - scan filesystem freespace and inode maps... + - found root inode chunk +Phase 3 - for each AG... + - scan and clear agi unlinked lists... + - process known inodes and perform inode discovery... +bad magic number 0xffff on inode INO +bad version number 0xffffffff on inode INO +inode identifier 18446744073709551615 mismatch on inode INO +bad magic number 0xffff on inode INO, resetting magic number +bad version number 0xffffffff on inode INO, resetting version number +inode identifier 18446744073709551615 mismatch on inode INO +cleared realtime summary inode INO + - process newly discovered inodes... +Phase 4 - check for duplicate blocks... + - setting up duplicate extent list... + - check for inodes claiming duplicate blocks... +Phase 5 - rebuild AG headers and trees... + - reset superblock... +Phase 6 - check inode connectivity... +reinitializing realtime summary inode + - resetting contents of realtime bitmap and summary inodes + - traversing filesystem ... + - traversal finished ... + - moving disconnected inodes to lost+found ... +Phase 7 - verify and correct link counts... +done diff --git a/tests/xfs/096 b/tests/xfs/096 index c289c10..f949e83 100755 --- a/tests/xfs/096 +++ b/tests/xfs/096 @@ -109,9 +109,9 @@ _require_v2log # choose .out file based on internal/external log rm -f $seqfull.out if [ "$USE_EXTERNAL" = yes ]; then - ln -s $seq.external $seqfull.out + ln -s $seq.out.external $seqfull.out else - ln -s $seq.internal $seqfull.out + ln -s $seq.out.internal $seqfull.out fi # maximum log record size diff --git a/tests/xfs/096.external b/tests/xfs/096.external deleted file mode 100644 index 3122330..0000000 --- a/tests/xfs/096.external +++ /dev/null @@ -1,50 +0,0 @@ -QA output created by 096 - -# su too big but must be a multiple of fs block size too ---- mkfs=-l version=2,su=262656 --- -log stripe unit (262656) must be a multiple of the block size (4096) - - -# test log stripe greater than LR size ---- mkfs=-l version=2,su=266240 --- -meta-data=DEV isize=N agcount=N, agsize=N blks -data = bsize=4096 blocks=N, imaxpct=N - = sunit=0 swidth=0 blks, unwritten=1 -naming =version 2 bsize=4096 -log =LOG bsize=4096 blocks=N, version=N -realtime =REALTIME extsz=N, blocks=N, rtextents=N - - -# same test but get log stripe from data stripe ---- mkfs=-l version=2 -d su=266240,sw=1 --- -meta-data=DEV isize=N agcount=N, agsize=N blks -data = bsize=4096 blocks=N, imaxpct=N - = sunit=65 swidth=65 blks, unwritten=1 -naming =version 2 bsize=4096 -log =LOG bsize=4096 blocks=N, version=N - = sunit=N blks -realtime =REALTIME extsz=N, blocks=N, rtextents=N - - -# test out data stripe ---- mkfs=-m crc=0 -l version=1 -d su=266240,sw=1 --- -meta-data=DEV isize=N agcount=N, agsize=N blks -data = bsize=4096 blocks=N, imaxpct=N - = sunit=65 swidth=65 blks, unwritten=1 -naming =version 2 bsize=4096 -log =LOG bsize=4096 blocks=N, version=N - = sunit=N blks -realtime =REALTIME extsz=N, blocks=N, rtextents=N - - -# test out data stripe the same but using sunit & swidth ---- mkfs=-m crc=0 -l version=1 -d sunit=520,swidth=520 --- -meta-data=DEV isize=N agcount=N, agsize=N blks -data = bsize=4096 blocks=N, imaxpct=N - = sunit=65 swidth=65 blks, unwritten=1 -naming =version 2 bsize=4096 -log =LOG bsize=4096 blocks=N, version=N - = sunit=N blks -realtime =REALTIME extsz=N, blocks=N, rtextents=N - - diff --git a/tests/xfs/096.internal b/tests/xfs/096.internal deleted file mode 100644 index 80201d2..0000000 --- a/tests/xfs/096.internal +++ /dev/null @@ -1,51 +0,0 @@ -QA output created by 096 - -# su too big but must be a multiple of fs block size too ---- mkfs=-l version=2,su=262656 --- -log stripe unit (262656) must be a multiple of the block size (4096) - - -# test log stripe greater than LR size ---- mkfs=-l version=2,su=266240 --- -meta-data=DEV isize=N agcount=N, agsize=N blks -data = bsize=4096 blocks=N, imaxpct=N - = sunit=0 swidth=0 blks, unwritten=1 -naming =version 2 bsize=4096 -log =LOG bsize=4096 blocks=N, version=N - = sunit=N blks -realtime =REALTIME extsz=N, blocks=N, rtextents=N - - -# same test but get log stripe from data stripe ---- mkfs=-l version=2 -d su=266240,sw=1 --- -meta-data=DEV isize=N agcount=N, agsize=N blks -data = bsize=4096 blocks=N, imaxpct=N - = sunit=65 swidth=65 blks, unwritten=1 -naming =version 2 bsize=4096 -log =LOG bsize=4096 blocks=N, version=N - = sunit=N blks -realtime =REALTIME extsz=N, blocks=N, rtextents=N - - -# test out data stripe ---- mkfs=-m crc=0 -l version=1 -d su=266240,sw=1 --- -meta-data=DEV isize=N agcount=N, agsize=N blks -data = bsize=4096 blocks=N, imaxpct=N - = sunit=65 swidth=65 blks, unwritten=1 -naming =version 2 bsize=4096 -log =LOG bsize=4096 blocks=N, version=N - = sunit=N blks -realtime =REALTIME extsz=N, blocks=N, rtextents=N - - -# test out data stripe the same but using sunit & swidth ---- mkfs=-m crc=0 -l version=1 -d sunit=520,swidth=520 --- -meta-data=DEV isize=N agcount=N, agsize=N blks -data = bsize=4096 blocks=N, imaxpct=N - = sunit=65 swidth=65 blks, unwritten=1 -naming =version 2 bsize=4096 -log =LOG bsize=4096 blocks=N, version=N - = sunit=N blks -realtime =REALTIME extsz=N, blocks=N, rtextents=N - - diff --git a/tests/xfs/096.out.external b/tests/xfs/096.out.external new file mode 100644 index 0000000..3122330 --- /dev/null +++ b/tests/xfs/096.out.external @@ -0,0 +1,50 @@ +QA output created by 096 + +# su too big but must be a multiple of fs block size too +--- mkfs=-l version=2,su=262656 --- +log stripe unit (262656) must be a multiple of the block size (4096) + + +# test log stripe greater than LR size +--- mkfs=-l version=2,su=266240 --- +meta-data=DEV isize=N agcount=N, agsize=N blks +data = bsize=4096 blocks=N, imaxpct=N + = sunit=0 swidth=0 blks, unwritten=1 +naming =version 2 bsize=4096 +log =LOG bsize=4096 blocks=N, version=N +realtime =REALTIME extsz=N, blocks=N, rtextents=N + + +# same test but get log stripe from data stripe +--- mkfs=-l version=2 -d su=266240,sw=1 --- +meta-data=DEV isize=N agcount=N, agsize=N blks +data = bsize=4096 blocks=N, imaxpct=N + = sunit=65 swidth=65 blks, unwritten=1 +naming =version 2 bsize=4096 +log =LOG bsize=4096 blocks=N, version=N + = sunit=N blks +realtime =REALTIME extsz=N, blocks=N, rtextents=N + + +# test out data stripe +--- mkfs=-m crc=0 -l version=1 -d su=266240,sw=1 --- +meta-data=DEV isize=N agcount=N, agsize=N blks +data = bsize=4096 blocks=N, imaxpct=N + = sunit=65 swidth=65 blks, unwritten=1 +naming =version 2 bsize=4096 +log =LOG bsize=4096 blocks=N, version=N + = sunit=N blks +realtime =REALTIME extsz=N, blocks=N, rtextents=N + + +# test out data stripe the same but using sunit & swidth +--- mkfs=-m crc=0 -l version=1 -d sunit=520,swidth=520 --- +meta-data=DEV isize=N agcount=N, agsize=N blks +data = bsize=4096 blocks=N, imaxpct=N + = sunit=65 swidth=65 blks, unwritten=1 +naming =version 2 bsize=4096 +log =LOG bsize=4096 blocks=N, version=N + = sunit=N blks +realtime =REALTIME extsz=N, blocks=N, rtextents=N + + diff --git a/tests/xfs/096.out.internal b/tests/xfs/096.out.internal new file mode 100644 index 0000000..80201d2 --- /dev/null +++ b/tests/xfs/096.out.internal @@ -0,0 +1,51 @@ +QA output created by 096 + +# su too big but must be a multiple of fs block size too +--- mkfs=-l version=2,su=262656 --- +log stripe unit (262656) must be a multiple of the block size (4096) + + +# test log stripe greater than LR size +--- mkfs=-l version=2,su=266240 --- +meta-data=DEV isize=N agcount=N, agsize=N blks +data = bsize=4096 blocks=N, imaxpct=N + = sunit=0 swidth=0 blks, unwritten=1 +naming =version 2 bsize=4096 +log =LOG bsize=4096 blocks=N, version=N + = sunit=N blks +realtime =REALTIME extsz=N, blocks=N, rtextents=N + + +# same test but get log stripe from data stripe +--- mkfs=-l version=2 -d su=266240,sw=1 --- +meta-data=DEV isize=N agcount=N, agsize=N blks +data = bsize=4096 blocks=N, imaxpct=N + = sunit=65 swidth=65 blks, unwritten=1 +naming =version 2 bsize=4096 +log =LOG bsize=4096 blocks=N, version=N + = sunit=N blks +realtime =REALTIME extsz=N, blocks=N, rtextents=N + + +# test out data stripe +--- mkfs=-m crc=0 -l version=1 -d su=266240,sw=1 --- +meta-data=DEV isize=N agcount=N, agsize=N blks +data = bsize=4096 blocks=N, imaxpct=N + = sunit=65 swidth=65 blks, unwritten=1 +naming =version 2 bsize=4096 +log =LOG bsize=4096 blocks=N, version=N + = sunit=N blks +realtime =REALTIME extsz=N, blocks=N, rtextents=N + + +# test out data stripe the same but using sunit & swidth +--- mkfs=-m crc=0 -l version=1 -d sunit=520,swidth=520 --- +meta-data=DEV isize=N agcount=N, agsize=N blks +data = bsize=4096 blocks=N, imaxpct=N + = sunit=65 swidth=65 blks, unwritten=1 +naming =version 2 bsize=4096 +log =LOG bsize=4096 blocks=N, version=N + = sunit=N blks +realtime =REALTIME extsz=N, blocks=N, rtextents=N + + -- 2.5.0 From agruenba@redhat.com Wed Nov 18 08:18:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0C9247F37 for ; Wed, 18 Nov 2015 08:18:09 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id F1A34304039 for ; Wed, 18 Nov 2015 06:18:08 -0800 (PST) X-ASG-Debug-ID: 1447856283-04cb6c0cd3de0e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id tFg2Gpr1vTuaOUZQ (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 18 Nov 2015 06:18:03 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 34BE1C049D4F for ; Wed, 18 Nov 2015 14:18:03 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-27.ams2.redhat.com [10.36.5.27]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAIEHoXf027334; Wed, 18 Nov 2015 09:18:01 -0500 From: Andreas Gruenbacher To: xfs@oss.sgi.com Cc: Andreas Gruenbacher Subject: [XFSTESTS 5/6] Add richacl tests Date: Wed, 18 Nov 2015 15:17:48 +0100 X-ASG-Orig-Subj: [XFSTESTS 5/6] Add richacl tests Message-Id: <1447856269-7872-6-git-send-email-agruenba@redhat.com> In-Reply-To: <1447856269-7872-1-git-send-email-agruenba@redhat.com> References: <1447856269-7872-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447856283 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Add the Rich Access Control List tests from the richacl package. The new tests require TEST_DEV and TEST_DIR to be set. When the check script is run, it first makes sure that the test filesystem has richacls enabled or disabled as appropriate: with the -richacl option, richacls must be enabled; without the -richacl option, richacls must be disabled. If TEST_DEV has incorrect richacl support, the TEST_DEV filesystem is recreated. The -richacl option currently selects the tests in the richacl group to be run. Additional test groups or tests can be specified on the command line, e.g., ./check -richacl -g quick (Eventually, the -richacl option will be changed to only skip tests which are incompatible with richacls.) Signed-off-by: Andreas Gruenbacher --- .gitignore | 1 + check | 39 +++++++- common/rc | 23 ++++- src/Makefile | 2 +- src/require-richacls.c | 35 +++++++ tests/richacl/001-apply-masks | 1 + tests/richacl/002-auto-inheritance | 1 + tests/richacl/003-basic | 1 + tests/richacl/004-chmod | 1 + tests/richacl/005-chown | 1 + tests/richacl/006-create | 1 + tests/richacl/007-ctime | 1 + tests/richacl/008-delete | 1 + tests/richacl/009-setrichacl-modify | 1 + tests/richacl/010-write-vs-append | 1 + tests/richacl/Makefile | 44 +++++++++ tests/richacl/apply-masks | 163 ++++++++++++++++++++++++++++++ tests/richacl/auto-inheritance | 191 ++++++++++++++++++++++++++++++++++++ tests/richacl/basic | 97 ++++++++++++++++++ tests/richacl/chmod | 40 ++++++++ tests/richacl/chown | 42 ++++++++ tests/richacl/create | 36 +++++++ tests/richacl/ctime | 35 +++++++ tests/richacl/delete | 89 +++++++++++++++++ tests/richacl/group | 15 +++ tests/richacl/setrichacl-modify | 57 +++++++++++ tests/richacl/test-lib.sh | 149 ++++++++++++++++++++++++++++ tests/richacl/write-vs-append | 54 ++++++++++ 28 files changed, 1114 insertions(+), 8 deletions(-) create mode 100644 src/require-richacls.c create mode 120000 tests/richacl/001-apply-masks create mode 120000 tests/richacl/002-auto-inheritance create mode 120000 tests/richacl/003-basic create mode 120000 tests/richacl/004-chmod create mode 120000 tests/richacl/005-chown create mode 120000 tests/richacl/006-create create mode 120000 tests/richacl/007-ctime create mode 120000 tests/richacl/008-delete create mode 120000 tests/richacl/009-setrichacl-modify create mode 120000 tests/richacl/010-write-vs-append create mode 100644 tests/richacl/Makefile create mode 100755 tests/richacl/apply-masks create mode 100755 tests/richacl/auto-inheritance create mode 100755 tests/richacl/basic create mode 100755 tests/richacl/chmod create mode 100755 tests/richacl/chown create mode 100755 tests/richacl/create create mode 100755 tests/richacl/ctime create mode 100755 tests/richacl/delete create mode 100644 tests/richacl/group create mode 100755 tests/richacl/setrichacl-modify create mode 100644 tests/richacl/test-lib.sh create mode 100755 tests/richacl/write-vs-append diff --git a/.gitignore b/.gitignore index 7c25c41..d7ff600 100644 --- a/.gitignore +++ b/.gitignore @@ -116,6 +116,7 @@ /src/cloner /src/renameat2 /src/t_rename_overwrite +/src/require-richacls # dmapi/ binaries /dmapi/src/common/cmd/read_invis diff --git a/check b/check index 5ecc12b..89b6d8a 100755 --- a/check +++ b/check @@ -60,7 +60,7 @@ then exit 1 fi -SRC_GROUPS="generic shared" +SRC_GROUPS="generic shared richacl" export SRC_DIR="tests" usage() @@ -71,6 +71,7 @@ check options -nfs test NFS -cifs test CIFS -tmpfs test TMPFS + -richacl test Rich Access Control Lists -l line mode diff -udiff show unified diff (default) -n show me, do not run tests @@ -220,6 +221,11 @@ while [ $# -gt 0 ]; do -cifs) FSTYP=cifs ;; -tmpfs) FSTYP=tmpfs ;; + -richacl) + RICHACL=1 + GROUP_LIST="$GROUP_LIST richacl" + ;; + -g) group=$2 ; shift ; GROUP_LIST="$GROUP_LIST ${group//,/ }" ;; @@ -417,6 +423,34 @@ else trap "_wrapup; exit \$status" 0 1 2 3 15 fi +# Check if the filesystem on a block device is compatible with how the test +# suite is being run. Currently, we use this to check if the filesystem +# has richacl support when needed. +_dev_is_compatible() { + local dev=$1 HAS_RICHACL= + + case "$FSTYP" in + xfs) + if xfs_db -r -c version "$dev" | grep -qw RICHACL; then + HAS_RICHACL=1 + fi + ;; + + ext2|ext3|ext4) + if tune2fs -l "$dev" | grep -q '^Filesystem features.*\'; then + HAS_RICHACL=1 + fi + ;; + + *) + # Other filesystems don't currently have richacl support; there + # is no point in recreating them. + HAS_RICHACL=$RICHACL + ;; + esac + [ "$HAS_RICHACL" = "$RICHACL" ] +} + for section in $HOST_OPTIONS_SECTIONS; do OLD_FSTYP=$FSTYP OLD_MOUNT_OPTIONS=$MOUNT_OPTIONS @@ -446,7 +480,8 @@ for section in $HOST_OPTIONS_SECTIONS; do echo "SECTION -- $section" fi - if $RECREATE_TEST_DEV || [ "$OLD_FSTYP" != "$FSTYP" ]; then + if $RECREATE_TEST_DEV || [ "$OLD_FSTYP" != "$FSTYP" ] || + ! _dev_is_compatible "$TEST_DEV"; then echo "RECREATING -- $FSTYP on $TEST_DEV" umount $TEST_DEV 2> /dev/null if ! _test_mkfs >$tmp.err 2>&1 diff --git a/common/rc b/common/rc index ce6ae3d..0dd8e4f 100644 --- a/common/rc +++ b/common/rc @@ -559,6 +559,19 @@ _scratch_mkfs_ext4() _test_mkfs() { + local OPT=$MKFS_OPTIONS + + if [ -n "$RICHACL" ]; then + case "$FSTYP" in + xfs) + OPT="$OPT -m richacl=1" + ;; + ext2|ext3|ext4) + OPT="$OPT -O richacl" + ;; + esac + fi + case $FSTYP in nfs*) # do nothing for nfs @@ -567,19 +580,19 @@ _test_mkfs() # do nothing for cifs ;; udf) - $MKFS_UDF_PROG $MKFS_OPTIONS $* $TEST_DEV > /dev/null + $MKFS_UDF_PROG $OPT $* $TEST_DEV > /dev/null ;; btrfs) - $MKFS_BTRFS_PROG $MKFS_OPTIONS $* $TEST_DEV > /dev/null + $MKFS_BTRFS_PROG $OPT $* $TEST_DEV > /dev/null ;; xfs) - $MKFS_PROG -t $FSTYP -- -f $MKFS_OPTIONS $* $TEST_DEV + $MKFS_PROG -t $FSTYP -- -f $OPT $* $TEST_DEV ;; ext2|ext3|ext4) - $MKFS_PROG -t $FSTYP -- -F $MKFS_OPTIONS $* $TEST_DEV + $MKFS_PROG -t $FSTYP -- -F $OPT $* $TEST_DEV ;; *) - yes | $MKFS_PROG -t $FSTYP -- $MKFS_OPTIONS $* $TEST_DEV + yes | $MKFS_PROG -t $FSTYP -- $OPT $* $TEST_DEV ;; esac } diff --git a/src/Makefile b/src/Makefile index 4781736..7908f3c 100644 --- a/src/Makefile +++ b/src/Makefile @@ -19,7 +19,7 @@ LINUX_TARGETS = xfsctl bstat t_mtab getdevicesize preallo_rw_pattern_reader \ bulkstat_unlink_test_modified t_dir_offset t_futimens t_immutable \ stale_handle pwrite_mmap_blocked t_dir_offset2 seek_sanity_test \ seek_copy_test t_readdir_1 t_readdir_2 fsync-tester nsexec cloner \ - renameat2 t_getcwd e4compact + renameat2 t_getcwd e4compact require-richacls SUBDIRS = diff --git a/src/require-richacls.c b/src/require-richacls.c new file mode 100644 index 0000000..dce984f --- /dev/null +++ b/src/require-richacls.c @@ -0,0 +1,35 @@ +#ifndef _GNU_SOURCE +# define _GNU_SOURCE +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include + +int main(int argc, char *argv[]) +{ + int ret; + + ret = getxattr(".", "system.richacl", NULL, 0); + if (ret < 0 && errno != ENODATA) { + char cwd[PATH_MAX]; + + if (!getcwd(cwd, sizeof(cwd))) + strcpy(cwd, "."); + if (errno == ENOTSUP) { + printf("This test requires a filesystem with richacl " + "support at %s\n", + cwd); + return 77; + } else { + perror(cwd); + return 1; + } + } + return 0; +} diff --git a/tests/richacl/001-apply-masks b/tests/richacl/001-apply-masks new file mode 120000 index 0000000..256bb2b --- /dev/null +++ b/tests/richacl/001-apply-masks @@ -0,0 +1 @@ +apply-masks \ No newline at end of file diff --git a/tests/richacl/002-auto-inheritance b/tests/richacl/002-auto-inheritance new file mode 120000 index 0000000..98472fc --- /dev/null +++ b/tests/richacl/002-auto-inheritance @@ -0,0 +1 @@ +auto-inheritance \ No newline at end of file diff --git a/tests/richacl/003-basic b/tests/richacl/003-basic new file mode 120000 index 0000000..ea5233d --- /dev/null +++ b/tests/richacl/003-basic @@ -0,0 +1 @@ +basic \ No newline at end of file diff --git a/tests/richacl/004-chmod b/tests/richacl/004-chmod new file mode 120000 index 0000000..8acd9e4 --- /dev/null +++ b/tests/richacl/004-chmod @@ -0,0 +1 @@ +chmod \ No newline at end of file diff --git a/tests/richacl/005-chown b/tests/richacl/005-chown new file mode 120000 index 0000000..6fb0fcd --- /dev/null +++ b/tests/richacl/005-chown @@ -0,0 +1 @@ +chown \ No newline at end of file diff --git a/tests/richacl/006-create b/tests/richacl/006-create new file mode 120000 index 0000000..f4ab424 --- /dev/null +++ b/tests/richacl/006-create @@ -0,0 +1 @@ +create \ No newline at end of file diff --git a/tests/richacl/007-ctime b/tests/richacl/007-ctime new file mode 120000 index 0000000..3ddadee --- /dev/null +++ b/tests/richacl/007-ctime @@ -0,0 +1 @@ +ctime \ No newline at end of file diff --git a/tests/richacl/008-delete b/tests/richacl/008-delete new file mode 120000 index 0000000..bbd98f4 --- /dev/null +++ b/tests/richacl/008-delete @@ -0,0 +1 @@ +delete \ No newline at end of file diff --git a/tests/richacl/009-setrichacl-modify b/tests/richacl/009-setrichacl-modify new file mode 120000 index 0000000..e3ebe54 --- /dev/null +++ b/tests/richacl/009-setrichacl-modify @@ -0,0 +1 @@ +setrichacl-modify \ No newline at end of file diff --git a/tests/richacl/010-write-vs-append b/tests/richacl/010-write-vs-append new file mode 120000 index 0000000..f19a074 --- /dev/null +++ b/tests/richacl/010-write-vs-append @@ -0,0 +1 @@ +write-vs-append \ No newline at end of file diff --git a/tests/richacl/Makefile b/tests/richacl/Makefile new file mode 100644 index 0000000..46662c5 --- /dev/null +++ b/tests/richacl/Makefile @@ -0,0 +1,44 @@ +# +# Copyright (C) 2015 Red Hat, Inc. +# + +# TOPDIR = .. +# include $(TOPDIR)/include/builddefs +# +# TESTS = apply-masks basic chmod chown create delete setrichacl-modify \ +# write-vs-append ctime auto-inheritance +# +# LSRCFILES = test-lib.sh $(TESTS) +# +# default install install-dev install-lib: +# +# include $(BUILDRULES) + +#$(TARGETS): +# @echo " [CC] $@" +# $(Q)$(LTLINK) $@.c -o $@ $(CFLAGS) $(LDFLAGS) $(LDLIBS) + +#TESTS_ENVIRONMENT = \ +# abs_top_builddir=$(abs_top_builddir); \ +# export abs_top_builddir; +# +# +# +# +# + +TOPDIR = ../.. +include $(TOPDIR)/include/builddefs + +TARGET_DIR = $(PKG_LIB_DIR)/$(TESTS_DIR)/richacl + +include $(BUILDRULES) + +install: + $(INSTALL) -m 755 -d $(TARGET_DIR) + $(INSTALL) -m 755 [0-9]?? $(TESTS) $(TARGET_DIR) + $(INSTALL) -m 644 group $(TARGET_DIR) + #$(INSTALL) -m 644 [0-9]??.* $(TARGET_DIR) + +# Nothing. +install-dev install-lib: diff --git a/tests/richacl/apply-masks b/tests/richacl/apply-masks new file mode 100755 index 0000000..7a99cf9 --- /dev/null +++ b/tests/richacl/apply-masks @@ -0,0 +1,163 @@ +#! /bin/sh + +. ${0%/*}/test-lib.sh + +require_richacls +use_tmpdir + +ncheck "touch x" +ncheck "setrichacl --set 'owner@:rwp::allow group@:rwp::allow everyone@:r::allow' x" +check "getrichacl x" < acl.txt" +check "cat acl.txt" <&2 + exit 77 + fi +} + +require_richacls() { + $here/src/require-richacls || exit $? + if ! type -f getrichacl setrichacl > /dev/null; then + echo "This test requires the getrichacl and setrichacl utilities" >&2 + exit 77 + fi +} + +require_getfattr() { + if ! type -f getfattr > /dev/null ; then + echo "This test requires the getfattr utility" >&2 + exit 77 + fi +} + +_RUNAS= +runas() { + _start_test -1 runas "$*" + if [ $# = 0 ]; then + _RUNAS= + else + _RUNAS="$here/src/runas $* --" + fi + echo "ok" +} + +if diff -u -L expected -L got /dev/null /dev/null 2> /dev/null; then + eval '_compare() { + diff -u -L expected -L got "$1" "$2" + }' +else + eval '_compare() { + echo "expected:" + cat "$1" + echo "got:" + cat "$2" + }' +fi + +_check() { + local frame=$1 + shift + _start_test "$frame" "$*" + expected=`cat` + if got=`set +x; eval "$_RUNAS $*" 3>&2 &1` && \ + test "$expected" = "$got" ; then + echo "ok" + checks_succeeded="$checks_succeeded + 1" + else + echo "FAILED" + if test "$expected" != "$got" ; then + echo "$expected" > expected~ + echo "$got" > got~ + _compare expected~ got~ + rm -f expected~ got~ + fi + checks_failed="$checks_failed + 1" + fi +} + +check() { + _check 0 "$@" +} + +ncheck() { + _check 0 "$@" < /dev/null +} + +parent_check() { + _check 1 "$@" +} + +parent_ncheck() { + _check 1 "$@" < /dev/null +} + +cleanup() { + status=$? + checks_succeeded=`expr $checks_succeeded` + checks_failed=`expr $checks_failed` + checks_total=`expr $checks_succeeded + $checks_failed` + if test $checks_total -gt 0 ; then + if test $checks_failed -gt 0 && test $status -eq 0 ; then + status=1 + fi + echo "$checks_total tests ($checks_succeeded passed," \ + "$checks_failed failed)" + fi + if test -n "$tmpdir" ; then + chmod -R u+rwx "$tmpdir" 2>/dev/null + cd / && rm -rf "$tmpdir" + fi + exit $status +} + +if test -z "`echo -n`"; then + if eval 'test -n "${BASH_LINENO[0]}" 2>/dev/null'; then + eval ' + _start_test() { + local frame=$1 + shift + printf "[${BASH_LINENO[2+frame]}] $* -- " + }' + else + eval ' + _start_test() { + shift + printf "* $* -- " + }' + fi +else + eval ' + _start_test() { + shift + printf "* $*\\n" + }' +fi + +if ! type cat > /dev/null 2> /dev/null; then + echo "This test requires the cat utility" >&2 + exit 77 +fi + +export PATH=$here/src:$PATH + +[ -z "$TEST_DIR" ] || cd "$TEST_DIR" + +checks_succeeded=0 +checks_failed=0 +trap cleanup 0 diff --git a/tests/richacl/write-vs-append b/tests/richacl/write-vs-append new file mode 100755 index 0000000..4528f3a --- /dev/null +++ b/tests/richacl/write-vs-append @@ -0,0 +1,54 @@ +#! /bin/sh + +. ${0%/*}/test-lib.sh + +require_runas +require_richacls +use_tmpdir + +export LC_ALL=C + +ncheck "touch a b c d e f" +ncheck "setrichacl --set 'owner@:rwp::allow' a" +ncheck "setrichacl --set 'owner@:rwp::allow 99:w::allow' b" +ncheck "setrichacl --set 'owner@:rwp::allow 99:p::allow' c" +ncheck "setrichacl --set 'owner@:rwp::allow 99:wp::allow' d" +ncheck "setrichacl --set '99:a::deny owner@:rwp::allow 99:w::allow' e" +ncheck "setrichacl --set '99:w::deny owner@:rwp::allow 99:p::allow' f" + +runas -u 99 -g 99 +check "sh -c 'echo a > a' || :" < b' || :" +check "sh -c 'echo c > c' || :" < d' || :" +ncheck "sh -c 'echo e > e' || :" +check "sh -c 'echo f > f' || :" <> a' || :" <> b' || :" <> c' || :" +ncheck "sh -c 'echo D >> d' || :" +check "sh -c 'echo E >> e' || :" <> f' || :" + +runas +check "cat a b c d e f" < X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=3.0 required=5.0 tests=TVD_SUBJ_NUM_OBFU_MINFP autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3097B7F73 for ; Wed, 18 Nov 2015 08:18:11 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0EBD7304039 for ; Wed, 18 Nov 2015 06:18:11 -0800 (PST) X-ASG-Debug-ID: 1447856285-04cbb0605d1058a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id SkU38iczgZ1wSPGO (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 18 Nov 2015 06:18:05 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id 491CCC0A527E for ; Wed, 18 Nov 2015 14:18:05 +0000 (UTC) Received: from nux.redhat.com (vpn1-5-27.ams2.redhat.com [10.36.5.27]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAIEHoXg027334; Wed, 18 Nov 2015 09:18:03 -0500 From: Andreas Gruenbacher To: xfs@oss.sgi.com Cc: Andreas Gruenbacher Subject: [XFSTESTS 6/6] Remove the obsolete nfs4acl tests Date: Wed, 18 Nov 2015 15:17:49 +0100 X-ASG-Orig-Subj: [XFSTESTS 6/6] Remove the obsolete nfs4acl tests Message-Id: <1447856269-7872-7-git-send-email-agruenba@redhat.com> In-Reply-To: <1447856269-7872-1-git-send-email-agruenba@redhat.com> References: <1447856269-7872-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447856285 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The nfs4acl tests don't make sense anymore as they have been obsoleted by richacls. Signed-off-by: Andreas Gruenbacher --- nfs4acl/Makefile | 29 ---- nfs4acl/apply-mask.test | 143 ------------------- nfs4acl/basic.test | 70 ---------- nfs4acl/chmod.test | 31 ----- nfs4acl/chown.test | 63 --------- nfs4acl/computed-mode.test | 62 --------- nfs4acl/create.test | 35 ----- nfs4acl/ctime.test | 36 ----- nfs4acl/delete.test | 77 ---------- nfs4acl/run | 298 --------------------------------------- nfs4acl/unrepresentable.test | 20 --- nfs4acl/write-vs-append.test | 46 ------ tests/xfs/191 | 75 ---------- tests/xfs/191.out | 324 ------------------------------------------- tests/xfs/group | 1 - 15 files changed, 1310 deletions(-) delete mode 100644 nfs4acl/Makefile delete mode 100644 nfs4acl/apply-mask.test delete mode 100644 nfs4acl/basic.test delete mode 100644 nfs4acl/chmod.test delete mode 100644 nfs4acl/chown.test delete mode 100644 nfs4acl/computed-mode.test delete mode 100644 nfs4acl/create.test delete mode 100644 nfs4acl/ctime.test delete mode 100644 nfs4acl/delete.test delete mode 100755 nfs4acl/run delete mode 100644 nfs4acl/unrepresentable.test delete mode 100644 nfs4acl/write-vs-append.test delete mode 100755 tests/xfs/191 delete mode 100644 tests/xfs/191.out diff --git a/nfs4acl/Makefile b/nfs4acl/Makefile deleted file mode 100644 index 42313f3..0000000 --- a/nfs4acl/Makefile +++ /dev/null @@ -1,29 +0,0 @@ -#----------------------------------------------------------------------- -# Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it would be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write the Free Software Foundation, -# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -# -#----------------------------------------------------------------------- - -TOPDIR = .. -include $(TOPDIR)/include/builddefs - -LSRCFILES = run \ - apply-mask.test chmod.test computed-mode.test ctime.test \ - unrepresentable.test basic.test chown.test create.test \ - delete.test write-vs-append.test - -include $(BUILDRULES) - -default install install-dev install-lib: diff --git a/nfs4acl/apply-mask.test b/nfs4acl/apply-mask.test deleted file mode 100644 index 9b9483a..0000000 --- a/nfs4acl/apply-mask.test +++ /dev/null @@ -1,143 +0,0 @@ -$ rm -rf d -$ mkdir d -$ cd d - -$ touch x - -$ nfs4acl --set 'owner@:rw::allow group@:rw::allow everyone@:r::allow' x -$ nfs4acl --get x -> x: -> owner@:rw::allow -> group@:rw::allow -> everyone@:r::allow -> - -$ nfs4acl --set 'everyone@:w::allow owner@:r::allow group@:r::allow' x -$ chmod 664 x -$ nfs4acl --get x -> x: -> owner@:rw::allow -> group@:rw::allow -> - -$ nfs4acl --set 'everyone@:w::deny owner@:rw::allow group@:rw::allow' x -$ chmod 664 x -$ nfs4acl --get x -> x: -> owner@:r::allow -> group@:r::allow -> - -$ nfs4acl --set 'owner@:rwmo::allow' x -$ nfs4acl --get x -> x: -> owner@:rwmo::allow -> - -$ chmod 644 x -$ nfs4acl --get x -> x: -> owner@:rw::allow -> - -$ nfs4acl --set 'root:rw::allow' x -$ chmod 664 x -$ nfs4acl --get x -> x: -> root:rw::allow -> - -$ chmod 644 x -$ nfs4acl --get x -> x: -> root:r::allow -> - -$ chmod 664 x -$ nfs4acl --get x -> x: -> root:rw::allow -> - -$ nfs4acl --set 'root:rw::allow everyone@:r::allow' x -$ chmod 664 x -$ nfs4acl --get x -> x: -> root:rw::allow -> everyone@:r::allow -> - -$ nfs4acl --set 'root:r::allow everyone@:rw::allow' x -$ chmod 664 x -$ nfs4acl --get x -> x: -> root:rw::allow -> owner@:rw::allow -> group@:rw::allow -> everyone@:r::allow -> - -$ nfs4acl --set 'root:w::deny everyone@:rw::allow' x -$ chmod 664 x -$ nfs4acl --get x -> x: -> root:w::deny -> owner@:rw::allow -> group@:rw::allow -> root:r::allow -> everyone@:r::allow -> - -$ nfs4acl --set 'root:rw::allow root:w::deny everyone@:rw::allow' x -$ chmod 664 x -$ nfs4acl --get x -> x: -> root:rw::allow -> root:w::deny -> owner@:rw::allow -> group@:rw::allow -> everyone@:r::allow -> - -$ nfs4acl --set 'everyone@:rw::allow' x -$ chmod 066 x -$ nfs4acl --get x -> x: -> owner@:rw::deny -> everyone@:rw::allow -> - -$ chmod 006 x -$ nfs4acl --get x -> x: -> owner@:rw::deny -> group@:rw::deny -> everyone@:rw::allow -> - -$ chmod 606 x -$ nfs4acl --get x -> x: -> group@:rw::deny -> everyone@:rw::allow -> - -$ nfs4acl --set 'root:rw::allow everyone@:rw::allow' x -$ chmod 606 x -$ nfs4acl --get x -> x: -> group@:rw::deny -> everyone@:rw::allow -> - -$ chmod 646 x -$ nfs4acl --get x -> x: -> root:r::allow -> group@:w::deny -> root:w::deny -> everyone@:rw::allow -> - -$ cd .. -$ rm -rf d diff --git a/nfs4acl/basic.test b/nfs4acl/basic.test deleted file mode 100644 index 1ae2896..0000000 --- a/nfs4acl/basic.test +++ /dev/null @@ -1,70 +0,0 @@ -$ rm -rf d -$ mkdir d -$ cd d - -$ chown bin . -$ su bin - -$ touch x -$ nfs4acl --set 'everyone@:rw::allow' x -$ ls -l x | cut -d ' ' -f 1 -> -rw-rw-rw- - -$ nfs4acl --get x -> x: -> everyone@:rw::allow -> - -$ chmod 664 x -$ ls -l x | cut -d ' ' -f 1 -> -rw-rw-r-- - -$ nfs4acl --get x -> x: -> owner@:rw::allow -> group@:rw::allow -> everyone@:r::allow -> - -$ mkdir sub -$ nfs4acl --set 'everyone@:rwax:fd:allow' sub -$ ls -dl sub | cut -d ' ' -f 1 -> drwxrwxrwx - -$ nfs4acl --get sub -> sub: -> everyone@:rwax:fd:allow -> - -$ chmod 775 sub -$ ls -dl sub | cut -d ' ' -f 1 -> drwxrwxr-x -$ nfs4acl --get sub -> sub: -> owner@:rwax::allow -> group@:rwax::allow -> everyone@:rwax:fdi:allow -> everyone@:rx::allow -> - -$ touch sub/f -$ ls -l sub/f | cut -d ' ' -f 1 -> -rw-rw-rw- - -$ nfs4acl --get sub/f -> sub/f: -> everyone@:rwa::allow -> - -$ mkdir sub/sub2 -$ ls -dl sub/sub2 | cut -d ' ' -f 1 -> drwxrwxrwx - -$ nfs4acl --get sub/sub2 -> sub/sub2: -> everyone@:rwax:fd:allow -> - -$ su -$ cd .. -$ rm -rf d diff --git a/nfs4acl/chmod.test b/nfs4acl/chmod.test deleted file mode 100644 index f4238b0..0000000 --- a/nfs4acl/chmod.test +++ /dev/null @@ -1,31 +0,0 @@ -$ mkdir d -$ cd d - -$ whoami -> root - -$ touch a - -Neet to have write_acl permission to chmod or set the acl: - $ su bin - $ chmod 666 a - > chmod: changing permissions of `a': Operation not permitted - $ nfs4acl --set 'bin:rwM::allow' a - > a: Operation not permitted - -$ su -$ nfs4acl --set 'bin:rwm::allow' a - -Can set the acl now: - $ su bin - $ nfs4acl --set 'bin:rwm::allow' a - -A chmod limits the permissions to the specified mode, which always disables -write_acl: - $ chmod 666 a - $ nfs4acl --set 'bin:rwm::allow' a - > a: Operation not permitted - -$ su -$ cd .. -$ rm -rf d diff --git a/nfs4acl/chown.test b/nfs4acl/chown.test deleted file mode 100644 index df29bf4..0000000 --- a/nfs4acl/chown.test +++ /dev/null @@ -1,63 +0,0 @@ -$ mkdir d -$ cd d - -$ whoami -> root - -$ id -Gn daemon -> daemon bin - -$ touch a - -Chown and chgrp with no take ownership permission fails: - $ su daemon - $ chown daemon a - > chown: changing ownership of `a': Operation not permitted - $ chgrp daemon a - > chgrp: changing group of `a': Operation not permitted - $ nfs4acl --set 'daemon:rwo::allow' a - > a: Operation not permitted - -Add the take_ownership permission. This is reflected in the file masks; the -file mode cannot show this though: - $ su - $ nfs4acl --set 'daemon:rwo::allow' a - -Chown and chgrp to an arbitrary other user or group fails: - $ su daemon - $ chown root a - > chown: changing ownership of `a': Operation not permitted - $ chgrp root a - > chgrp: changing group of `a': Operation not permitted - -Changing the mode makes that an upper bound of the permissions granted, even -when the file mode stays the same: - $ su - $ ls -l a | cut -d ' ' -f1 - > -rw-rw---- - $ chmod 660 a - -Chown and chgrp to the same user or a group the process is in now fails -because the masks now do not grant change_ownership access: - $ su daemon - $ chown daemon a - > chown: changing ownership of `a': Operation not permitted - $ chgrp daemon a - > chgrp: changing group of `a': Operation not permitted - $ chgrp bin a - > chgrp: changing group of `a': Operation not permitted - -Add back change_ownership: - $ su - $ nfs4acl --set 'daemon:rwo::allow' a - -Now, chgrp to one of the groups the process is in and chown to the same user -succeeds: - $ su daemon - $ chgrp daemon a - $ chgrp bin a - $ chown daemon a - -$ su -$ cd .. -$ rm -rf d diff --git a/nfs4acl/computed-mode.test b/nfs4acl/computed-mode.test deleted file mode 100644 index baa68d6..0000000 --- a/nfs4acl/computed-mode.test +++ /dev/null @@ -1,62 +0,0 @@ -$ rm -rf d -$ mkdir d -$ cd d - -$ mkdir e - -$ nfs4acl --set 'owner@:rwx:f:allow' e -$ touch e/f -$ ls -l e/f | cut -d ' ' -f 1 -> -rw------- -$ rm e/f - -$ nfs4acl --set 'group@:rwx:f:allow' e -$ touch e/f -$ ls -l e/f | cut -d ' ' -f 1 -> -rw-rw---- -$ rm e/f - -$ nfs4acl --set 'everyone@:rwx:f:allow' e -$ touch e/f -$ ls -l e/f | cut -d ' ' -f 1 -> -rw-rw-rw- -$ rm e/f - -$ nfs4acl --set 'owner@:rwx:f:allow root:rx:f:deny root:rx:f:allow' e -$ touch e/f -$ ls -l e/f | cut -d ' ' -f 1 -> -rw------- -$ rm e/f - -$ nfs4acl --set 'owner@:rwx::allow everyone@:w:fi:deny everyone@:rwx:fi:allow' e -$ touch e/f -$ ls -l e/f | cut -d ' ' -f 1 -> -r--r--r-- -$ rm e/f - -$ nfs4acl --set 'owner@:rwx::allow root:rx:fi:deny root:rx:fi:allow' e -$ touch e/f -$ ls -l e/f | cut -d ' ' -f 1 -> ---------- -$ rm e/f - -$ nfs4acl --set 'owner@:rx:fi:allow group@:rwx:fi:deny everyone@:rwx:f:allow' e -$ touch e/f -$ ls -l e/f | cut -d ' ' -f 1 -> -rw----rw- -$ rm e/f - -$ nfs4acl --set 'owner@:rx:fi:allow root:rwx:fi:deny everyone@:rwx:f:allow' e -$ touch e/f -$ ls -l e/f | cut -d ' ' -f 1 -> -rw-rw-rw- -$ rm e/f - -$ nfs4acl --set 'everyone@:w:fi:deny root:rx:fi:allow everyone@:rwx:f:allow' e -$ touch e/f -$ ls -l e/f | cut -d ' ' -f 1 -> -r--r--r-- -$ rm e/f - -$ cd .. -$ rm -rf d diff --git a/nfs4acl/create.test b/nfs4acl/create.test deleted file mode 100644 index e140f4b..0000000 --- a/nfs4acl/create.test +++ /dev/null @@ -1,35 +0,0 @@ -$ mkdir d -$ cd d - -$ whoami -> root - -$ mkdir d1 d2 d3 d4 -$ nfs4acl --set 'daemon:wx::allow' d2 -$ nfs4acl --set 'daemon:ax::allow' d3 -$ nfs4acl --set 'daemon:wax::allow' d4 - -$ su daemon - -Cannot create files or directories without permissions: - $ touch d1/f - > touch: cannot touch `d1/f': Permission denied - $ mkdir d1/d - > mkdir: cannot create directory `d1/d': Permission denied - -Can create files with add_file (w) permission: - $ touch d2/f - $ mkdir d2/d - > mkdir: cannot create directory `d2/d': Permission denied - -Can create directories with add_subdirectory (p) permission: - $ touch d3/f - > touch: cannot touch `d3/f': Permission denied - $ mkdir d3/d - -Both permissions at the same time: - $ touch d4/f - $ mkdir d4/d -$ su -$ cd .. -$ rm -rf d diff --git a/nfs4acl/ctime.test b/nfs4acl/ctime.test deleted file mode 100644 index 614d79b..0000000 --- a/nfs4acl/ctime.test +++ /dev/null @@ -1,36 +0,0 @@ -$ mkdir d -$ cd d - -$ whoami -> root - -$ touch a b -$ sleep 1 - -Without write access, the ctime cannot be changed. - $ su bin - $ touch a - > touch: cannot touch `a': Permission denied - -With write access, the ctime can be set to the current time, but not to -any other time: - $ su - $ nfs4acl --set 'bin:rw::allow' a - - $ su bin - $ touch a - $ [ b -ot a ] || echo 'b should be older than a' - $ touch -r b a - > touch: setting times of `a': Operation not permitted - -With set_attributes access, the ctime can be set to an arbitrary time: - $ su - $ nfs4acl --set 'bin:rwt::allow' a - - $ su bin - $ touch -r b a - $ [ b -ot a -o a -ot b ] && echo 'a should be as old as b' - -$ su -$ cd .. -$ rm -rf d diff --git a/nfs4acl/delete.test b/nfs4acl/delete.test deleted file mode 100644 index 9c5f24f..0000000 --- a/nfs4acl/delete.test +++ /dev/null @@ -1,77 +0,0 @@ -$ mkdir d -$ cd d - -$ whoami -> root - -$ id -Gn daemon -> daemon bin - -$ mkdir n1 -$ touch n1/f - -$ mkdir d2 d3 d4 d5 d6 d7 -$ touch d2/f d3/f d4/f d5/f d6/f d7/f d7/g -$ chown daemon d2 -$ chgrp bin d3 -$ chmod g+w d3 -$ nfs4acl --set 'daemon:wx::allow' d4 -$ nfs4acl --set 'daemon:d::allow' d5 -$ nfs4acl --set 'daemon:xd::allow' d6 -$ nfs4acl --set 'daemon:D::allow' d7/f d7/g -$ chmod 664 d7/g - -$ mkdir s2 s3 s4 s5 s6 s7 -$ chmod +t s2 s3 s4 s5 s6 s7 -$ touch s2/f s3/f s4/f s5/f s6/f s7/f s7/g -$ chown daemon s2 -$ chgrp bin s3 -$ chmod g+w s3 -$ nfs4acl --set 'daemon:wx::allow' s4 -$ nfs4acl --set 'daemon:d::allow' s5 -$ nfs4acl --set 'daemon:xd::allow' s6 -$ nfs4acl --set 'daemon:D::allow' s7/f -$ nfs4acl --set 'daemon:D::allow' s7/g s7/g -$ chmod 664 s7/g - -$ su daemon - -Cannot delete files without permissions: - $ rm n1/f - > rm: cannot remove `n1/f': Permission denied - -Can delete files we own: - $ rm d2/f s2/f - -Cannot delete files where we are in the owning group in a non-sticky directory, -but not in a sticky one: - $ rm d3/f s3/f - > rm: cannot remove `s3/f': Operation not permitted - -"Write_data/execute" access does not include delete_child access, and so this -is not enough for deleting: - $ rm d4/f s4/f - > rm: cannot remove `d4/f': Permission denied - > rm: cannot remove `s4/f': Permission denied - -"Delete_child" access alone also is not sufficient: - $ rm d5/f s5/f - > rm: cannot remove `d5/f': Permission denied - > rm: cannot remove `s5/f': Permission denied - -"Execute/delete_child" on the directory does allow that, though, but only in -a non-sticky directory: - $ rm d6/f s6/f - > rm: cannot remove `s6/f': Operation not permitted - -"Delete" on the child itself overrides the sticky check as well: - $ rm d7/f s7/f - -But Delete is not a subset of POSIX read/write, so chmod turns it off: - $ rm d7/g s7/g - > rm: cannot remove `d7/g': Permission denied - > rm: cannot remove `s7/g': Permission denied - -$ su -$ cd .. -$ rm -rf d diff --git a/nfs4acl/run b/nfs4acl/run deleted file mode 100755 index 360739e..0000000 --- a/nfs4acl/run +++ /dev/null @@ -1,298 +0,0 @@ -#!/usr/bin/perl -w -U - -# -# Possible improvements: -# -# - distinguish stdout and stderr output -# - add environment variable like assignments -# - run up to a specific line -# - resume at a specific line -# - -use strict; -use FileHandle; -use Getopt::Std; -use POSIX qw(isatty setuid getcwd); -use vars qw($opt_l $opt_v); - -no warnings qw(taint); - -$opt_l = ~0; # a really huge number -getopts('l:v'); - -my ($OK, $FAILED) = ("ok", "failed"); -if (isatty(fileno(STDOUT))) { - $OK = "\033[32m" . $OK . "\033[m"; - $FAILED = "\033[31m\033[1m" . $FAILED . "\033[m"; -} - -sub exec_test($$); -sub process_test($$$$); - -my ($prog, $in, $out) = ([], [], []); -my $prog_line = 0; -my ($tests, $failed) = (0,0); -my $lineno; -my $width = ($ENV{COLUMNS} || 80) >> 1; - -for (;;) { - my $line = <>; $lineno++; - if (defined $line) { - # Substitute %VAR and %{VAR} with environment variables. - $line =~ s[%(\w+)][$ENV{$1}]eg; - $line =~ s[%{(\w+)}][$ENV{$1}]eg; - } - if (defined $line) { - if ($line =~ s/^\s*< ?//) { - push @$in, $line; - } elsif ($line =~ s/^\s*> ?//) { - push @$out, $line; - } else { - process_test($prog, $prog_line, $in, $out); - last if $prog_line >= $opt_l; - - $prog = []; - $prog_line = 0; - } - if ($line =~ s/^\s*\$ ?//) { - $line =~ s/\s+#.*//; # remove comments here... - $prog = [ map { s/\\(.)/$1/g; $_ } split /(? @$result) ? @$out : @$result; - for (my $n=0; $n < $nmax; $n++) { - my $use_re; - if (defined $out->[$n] && $out->[$n] =~ /^~ /) { - $use_re = 1; - $out->[$n] =~ s/^~ //g; - } - - if (!defined($out->[$n]) || !defined($result->[$n]) || - (!$use_re && $result->[$n] ne $out->[$n]) || - ( $use_re && $result->[$n] !~ /^$out->[$n]/)) { - push @good, ($use_re ? '!~' : '!='); - } - else { - push @good, ($use_re ? '=~' : '=='); - } - } - my $good = !(grep /!/, @good); - $tests++; - $failed++ unless $good; - print $good ? $OK : $FAILED, "\n"; - if (!$good || $opt_v) { - for (my $n=0; $n < $nmax; $n++) { - my $l = defined($out->[$n]) ? $out->[$n] : "~"; - chomp $l; - my $r = defined($result->[$n]) ? $result->[$n] : "~"; - chomp $r; - print sprintf("%-" . ($width-3) . "s %s %s\n", - $r, $good[$n], $l); - } - } -} - - -sub su($) { - my ($user) = @_; - - $user ||= "root"; - - my ($login, $pass, $uid, $gid) = getpwnam($user) - or return [ "su: user $user does not exist\n" ]; - my @groups = (); - my $fh = new FileHandle("/etc/group") - or return [ "opening /etc/group: $!\n" ]; - while (<$fh>) { - chomp; - my ($group, $passwd, $gid, $users) = split /:/; - foreach my $u (split /,/, $users) { - push @groups, $gid - if ($user eq $u); - } - } - $fh->close; - - my $groups = join(" ", ($gid, $gid, @groups)); - #print STDERR "[[$groups]]\n"; - $! = 0; # reset errno - $> = 0; - $( = $gid; - $) = $groups; - if ($!) { - return [ "su: $!\n" ]; - } - if ($uid != 0) { - $> = $uid; - #$< = $uid; - if ($!) { - return [ "su: $prog->[1]: $!\n" ]; - } - } - #print STDERR "[($>,$<)($(,$))]"; - return []; -} - - -sub sg($) { - my ($group) = @_; - - my $gid = getgrnam($group) - or return [ "sg: group $group does not exist\n" ]; - my %groups = map { $_ eq $gid ? () : ($_ => 1) } (split /\s/, $)); - - #print STDERR "<<", join("/", keys %groups), ">>\n"; - my $groups = join(" ", ($gid, $gid, keys %groups)); - #print STDERR "[[$groups]]\n"; - $! = 0; # reset errno - if ($> != 0) { - my $uid = $>; - $> = 0; - $( = $gid; - $) = $groups; - $> = $uid; - } else { - $( = $gid; - $) = $groups; - } - if ($!) { - return [ "sg: $!\n" ]; - } - print STDERR "[($>,$<)($(,$))]"; - return []; -} - - -sub exec_test($$) { - my ($prog, $in) = @_; - local (*IN, *IN_DUP, *IN2, *OUT_DUP, *OUT, *OUT2); - my $needs_shell = (join('', @$prog) =~ /[][|<>"'`\$\*\?]/); - - if ($prog->[0] eq "umask") { - umask oct $prog->[1]; - return []; - } elsif ($prog->[0] eq "cd") { - if (!chdir $prog->[1]) { - return [ "chdir: $prog->[1]: $!\n" ]; - } - $ENV{PWD} = getcwd; - return []; - } elsif ($prog->[0] eq "su") { - return su($prog->[1]); - } elsif ($prog->[0] eq "sg") { - return sg($prog->[1]); - } elsif ($prog->[0] eq "export") { - my ($name, $value) = split /=/, $prog->[1]; - # FIXME: need to evaluate $value, so that things like this will work: - # export dir=$PWD/dir - $ENV{$name} = $value; - return []; - } elsif ($prog->[0] eq "unset") { - delete $ENV{$prog->[1]}; - return []; - } - - pipe *IN2, *OUT - or die "Can't create pipe for reading: $!"; - open *IN_DUP, "<&STDIN" - or *IN_DUP = undef; - open *STDIN, "<&IN2" - or die "Can't duplicate pipe for reading: $!"; - close *IN2; - - open *OUT_DUP, ">&STDOUT" - or die "Can't duplicate STDOUT: $!"; - pipe *IN, *OUT2 - or die "Can't create pipe for writing: $!"; - open *STDOUT, ">&OUT2" - or die "Can't duplicate pipe for writing: $!"; - close *OUT2; - - *STDOUT->autoflush(); - *OUT->autoflush(); - - if (fork()) { - # Server - if (*IN_DUP) { - open *STDIN, "<&IN_DUP" - or die "Can't duplicate STDIN: $!"; - close *IN_DUP - or die "Can't close STDIN duplicate: $!"; - } - open *STDOUT, ">&OUT_DUP" - or die "Can't duplicate STDOUT: $!"; - close *OUT_DUP - or die "Can't close STDOUT duplicate: $!"; - - foreach my $line (@$in) { - #print "> $line"; - print OUT $line; - } - close *OUT - or die "Can't close pipe for writing: $!"; - - my $result = []; - while () { - #print "< $_"; - if ($needs_shell) { - s#^/bin/sh: line \d+: ##; - } - push @$result, $_; - } - return $result; - } else { - # Client - $< = $>; - close IN - or die "Can't close read end for input pipe: $!"; - close OUT - or die "Can't close write end for output pipe: $!"; - close OUT_DUP - or die "Can't close STDOUT duplicate: $!"; - local *ERR_DUP; - open ERR_DUP, ">&STDERR" - or die "Can't duplicate STDERR: $!"; - open STDERR, ">&STDOUT" - or die "Can't join STDOUT and STDERR: $!"; - - if ($needs_shell) { - exec ('/bin/sh', '-c', join(" ", @$prog)); - } else { - exec @$prog; - } - print STDERR $prog->[0], ": $!\n"; - exit; - } -} - diff --git a/nfs4acl/unrepresentable.test b/nfs4acl/unrepresentable.test deleted file mode 100644 index 17fe5d4..0000000 --- a/nfs4acl/unrepresentable.test +++ /dev/null @@ -1,20 +0,0 @@ -Test cases for (acl, masks) pairs that cannot be represented as -pure ACLs - -$ rm -rf d -$ mkdir d -$ cd d - -$ touch x - -$ nfs4acl --set 'group@:rw::allow' x -$ chmod 600 x -$ ls -l x | cut -d ' ' -f 1 -> -rw------- -$ nfs4acl --get x -> x: -> -$ rm -f x - -$ cd .. -$ rm -rf d diff --git a/nfs4acl/write-vs-append.test b/nfs4acl/write-vs-append.test deleted file mode 100644 index f1f940a..0000000 --- a/nfs4acl/write-vs-append.test +++ /dev/null @@ -1,46 +0,0 @@ -$ mkdir d -$ cd d - -$ whoami -> root - -$ touch a b c d e f -$ nfs4acl --set 'owner@:*::allow' a -$ nfs4acl --set 'owner@:*::allow bin:w::allow' b -$ nfs4acl --set 'owner@:*::allow bin:a::allow' c -$ nfs4acl --set 'owner@:*::allow bin:wa::allow' d -$ nfs4acl --set 'bin:a::deny owner@:*::allow bin:w::allow' e -$ nfs4acl --set 'bin:w::deny owner@:*::allow bin:a::allow' f - -$ su bin -$ echo a > a -> /bin/sh: a: Permission denied -$ echo b > b -$ echo c > c -> /bin/sh: c: Permission denied -$ echo d > d -$ echo e > e -$ echo f > f -> /bin/sh: f: Permission denied - -$ echo A >> a -> /bin/sh: a: Permission denied -$ echo B >> b -> /bin/sh: b: Permission denied -$ echo C >> c -$ echo D >> d -$ echo E >> e -> /bin/sh: e: Permission denied -$ echo F >> f - -$ su -$ cat a b c d e f -> b -> C -> d -> D -> e -> F - -$ cd .. -$ rm -rf d diff --git a/tests/xfs/191 b/tests/xfs/191 deleted file mode 100755 index e9aef20..0000000 --- a/tests/xfs/191 +++ /dev/null @@ -1,75 +0,0 @@ -#!/bin/bash -# FS QA Test No. 191 -# -# To call into the nfs4acl qa suite of Andreas Gruenbacher. -# -#----------------------------------------------------------------------- -# Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public License as -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it would be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write the Free Software Foundation, -# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -# -#----------------------------------------------------------------------- -# - -seq=`basename $0` -seqres=$RESULT_DIR/$seq -echo "QA output created by $seq" - -here=`pwd` -tmp=/tmp/$$ -status=1 # failure is the default! -trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15 - -# get standard environment, filters and checks -. ./common/rc -. ./common/filter - -# real QA test starts here - -# Modify as appropriate. -_supported_fs xfs -_supported_os Linux - -_require_scratch -_scratch_mkfs_xfs -i nfs4acl 1>$tmp.mkfs 2>$seqres.full -if [ $? -ne 0 ] -then - _notrun "no mkfs support for NFS v4 ACLs" -fi - -_scratch_mount 2>/dev/null -if [ $? -ne 0 ] -then - _notrun "no kernel mount support for NFS v4 ACLs" -fi - -set_prog_path nfs4acl >>$seqres.full -if [ $? -ne 0 ] -then - _notrun "no nfs4acl utility found" -fi - -cd $SCRATCH_MNT -for file in $here/nfs4acl/*.test -do - print_file=`echo $file | sed 's/.*nfs4acl/nfs4acl/'` - echo "" - echo "*** $print_file ***" - echo "" - $here/nfs4acl/run $file -done - -# success, all done -status=0 -exit diff --git a/tests/xfs/191.out b/tests/xfs/191.out deleted file mode 100644 index 7a37ec8..0000000 --- a/tests/xfs/191.out +++ /dev/null @@ -1,324 +0,0 @@ -QA output created by 191 - -*** nfs4acl/apply-mask.test *** - -[1] $ rm -rf d -- ok -[2] $ mkdir d -- ok -[3] $ cd d -- ok -[5] $ touch x -- ok -[7] $ nfs4acl --set 'owner@:rw::allow group@:rw::allow everyone@:r::allow' x -- ok -[8] $ nfs4acl --get x -- ok -[15] $ nfs4acl --set 'everyone@:w::allow owner@:r::allow group@:r::allow' x -- ok -[16] $ chmod 664 x -- ok -[17] $ nfs4acl --get x -- ok -[23] $ nfs4acl --set 'everyone@:w::deny owner@:rw::allow group@:rw::allow' x -- ok -[24] $ chmod 664 x -- ok -[25] $ nfs4acl --get x -- ok -[31] $ nfs4acl --set 'owner@:rwmo::allow' x -- ok -[32] $ nfs4acl --get x -- ok -[37] $ chmod 644 x -- ok -[38] $ nfs4acl --get x -- ok -[43] $ nfs4acl --set 'root:rw::allow' x -- ok -[44] $ chmod 664 x -- ok -[45] $ nfs4acl --get x -- ok -[50] $ chmod 644 x -- ok -[51] $ nfs4acl --get x -- ok -[56] $ chmod 664 x -- ok -[57] $ nfs4acl --get x -- ok -[62] $ nfs4acl --set 'root:rw::allow everyone@:r::allow' x -- ok -[63] $ chmod 664 x -- ok -[64] $ nfs4acl --get x -- ok -[70] $ nfs4acl --set 'root:r::allow everyone@:rw::allow' x -- ok -[71] $ chmod 664 x -- ok -[72] $ nfs4acl --get x -- ok -[80] $ nfs4acl --set 'root:w::deny everyone@:rw::allow' x -- ok -[81] $ chmod 664 x -- ok -[82] $ nfs4acl --get x -- ok -[91] $ nfs4acl --set 'root:rw::allow root:w::deny everyone@:rw::allow' x -- ok -[92] $ chmod 664 x -- ok -[93] $ nfs4acl --get x -- ok -[102] $ nfs4acl --set 'everyone@:rw::allow' x -- ok -[103] $ chmod 066 x -- ok -[104] $ nfs4acl --get x -- ok -[110] $ chmod 006 x -- ok -[111] $ nfs4acl --get x -- ok -[118] $ chmod 606 x -- ok -[119] $ nfs4acl --get x -- ok -[125] $ nfs4acl --set 'root:rw::allow everyone@:rw::allow' x -- ok -[126] $ chmod 606 x -- ok -[127] $ nfs4acl --get x -- ok -[133] $ chmod 646 x -- ok -[134] $ nfs4acl --get x -- ok -[142] $ cd .. -- ok -[143] $ rm -rf d -- ok -49 commands (49 passed, 0 failed) - -*** nfs4acl/basic.test *** - -[1] $ rm -rf d -- ok -[2] $ mkdir d -- ok -[3] $ cd d -- ok -[5] $ chown bin . -- ok -[6] $ su bin -- ok -[8] $ touch x -- ok -[9] $ nfs4acl --set 'everyone@:rw::allow' x -- ok -[10] $ ls -l x | cut -d ' ' -f 1 -- ok -[13] $ nfs4acl --get x -- ok -[18] $ chmod 664 x -- ok -[19] $ ls -l x | cut -d ' ' -f 1 -- ok -[22] $ nfs4acl --get x -- ok -[29] $ mkdir sub -- ok -[30] $ nfs4acl --set 'everyone@:rwax:fd:allow' sub -- ok -[31] $ ls -dl sub | cut -d ' ' -f 1 -- ok -[34] $ nfs4acl --get sub -- ok -[39] $ chmod 775 sub -- ok -[40] $ ls -dl sub | cut -d ' ' -f 1 -- ok -[42] $ nfs4acl --get sub -- ok -[50] $ touch sub/f -- ok -[51] $ ls -l sub/f | cut -d ' ' -f 1 -- ok -[54] $ nfs4acl --get sub/f -- ok -[59] $ mkdir sub/sub2 -- ok -[60] $ ls -dl sub/sub2 | cut -d ' ' -f 1 -- ok -[63] $ nfs4acl --get sub/sub2 -- ok -[68] $ su -- ok -[69] $ cd .. -- ok -[70] $ rm -rf d -- ok -28 commands (28 passed, 0 failed) - -*** nfs4acl/chmod.test *** - -[1] $ mkdir d -- ok -[2] $ cd d -- ok -[4] $ whoami -- ok -[7] $ touch a -- ok -[10] $ su bin -- ok -[11] $ chmod 666 a -- ok -[13] $ nfs4acl --set 'bin:rwM::allow' a -- ok -[16] $ su -- ok -[17] $ nfs4acl --set 'bin:rwm::allow' a -- ok -[20] $ su bin -- ok -[21] $ nfs4acl --set 'bin:rwm::allow' a -- ok -[25] $ chmod 666 a -- ok -[26] $ nfs4acl --set 'bin:rwm::allow' a -- ok -[29] $ su -- ok -[30] $ cd .. -- ok -[31] $ rm -rf d -- ok -16 commands (16 passed, 0 failed) - -*** nfs4acl/chown.test *** - -[1] $ mkdir d -- ok -[2] $ cd d -- ok -[4] $ whoami -- ok -[7] $ id -Gn daemon -- ok -[10] $ touch a -- ok -[13] $ su daemon -- ok -[14] $ chown daemon a -- ok -[16] $ chgrp daemon a -- ok -[18] $ nfs4acl --set 'daemon:rwo::allow' a -- ok -[23] $ su -- ok -[24] $ nfs4acl --set 'daemon:rwo::allow' a -- ok -[27] $ su daemon -- ok -[28] $ chown root a -- ok -[30] $ chgrp root a -- ok -[35] $ su -- ok -[36] $ ls -l a | cut -d ' ' -f1 -- ok -[38] $ chmod 660 a -- ok -[42] $ su daemon -- ok -[43] $ chown daemon a -- ok -[45] $ chgrp daemon a -- ok -[47] $ chgrp bin a -- ok -[51] $ su -- ok -[52] $ nfs4acl --set 'daemon:rwo::allow' a -- ok -[56] $ su daemon -- ok -[57] $ chgrp daemon a -- ok -[58] $ chgrp bin a -- ok -[59] $ chown daemon a -- ok -[61] $ su -- ok -[62] $ cd .. -- ok -[63] $ rm -rf d -- ok -30 commands (30 passed, 0 failed) - -*** nfs4acl/computed-mode.test *** - -[1] $ rm -rf d -- ok -[2] $ mkdir d -- ok -[3] $ cd d -- ok -[5] $ mkdir e -- ok -[7] $ nfs4acl --set 'owner@:rwx:f:allow' e -- ok -[8] $ touch e/f -- ok -[9] $ ls -l e/f | cut -d ' ' -f 1 -- ok -[11] $ rm e/f -- ok -[13] $ nfs4acl --set 'group@:rwx:f:allow' e -- ok -[14] $ touch e/f -- ok -[15] $ ls -l e/f | cut -d ' ' -f 1 -- ok -[17] $ rm e/f -- ok -[19] $ nfs4acl --set 'everyone@:rwx:f:allow' e -- ok -[20] $ touch e/f -- ok -[21] $ ls -l e/f | cut -d ' ' -f 1 -- ok -[23] $ rm e/f -- ok -[25] $ nfs4acl --set 'owner@:rwx:f:allow root:rx:f:deny root:rx:f:allow' e -- ok -[26] $ touch e/f -- ok -[27] $ ls -l e/f | cut -d ' ' -f 1 -- ok -[29] $ rm e/f -- ok -[31] $ nfs4acl --set 'owner@:rwx::allow everyone@:w:fi:deny everyone@:rwx:fi:allow' e -- ok -[32] $ touch e/f -- ok -[33] $ ls -l e/f | cut -d ' ' -f 1 -- ok -[35] $ rm e/f -- ok -[37] $ nfs4acl --set 'owner@:rwx::allow root:rx:fi:deny root:rx:fi:allow' e -- ok -[38] $ touch e/f -- ok -[39] $ ls -l e/f | cut -d ' ' -f 1 -- ok -[41] $ rm e/f -- ok -[43] $ nfs4acl --set 'owner@:rx:fi:allow group@:rwx:fi:deny everyone@:rwx:f:allow' e -- ok -[44] $ touch e/f -- ok -[45] $ ls -l e/f | cut -d ' ' -f 1 -- ok -[47] $ rm e/f -- ok -[49] $ nfs4acl --set 'owner@:rx:fi:allow root:rwx:fi:deny everyone@:rwx:f:allow' e -- ok -[50] $ touch e/f -- ok -[51] $ ls -l e/f | cut -d ' ' -f 1 -- ok -[53] $ rm e/f -- ok -[55] $ nfs4acl --set 'everyone@:w:fi:deny root:rx:fi:allow everyone@:rwx:f:allow' e -- ok -[56] $ touch e/f -- ok -[57] $ ls -l e/f | cut -d ' ' -f 1 -- ok -[59] $ rm e/f -- ok -[61] $ cd .. -- ok -[62] $ rm -rf d -- ok -42 commands (42 passed, 0 failed) - -*** nfs4acl/create.test *** - -[1] $ mkdir d -- ok -[2] $ cd d -- ok -[4] $ whoami -- ok -[7] $ mkdir d1 d2 d3 d4 -- ok -[8] $ nfs4acl --set 'daemon:wx::allow' d2 -- ok -[9] $ nfs4acl --set 'daemon:ax::allow' d3 -- ok -[10] $ nfs4acl --set 'daemon:wax::allow' d4 -- ok -[12] $ su daemon -- ok -[15] $ touch d1/f -- ok -[17] $ mkdir d1/d -- ok -[21] $ touch d2/f -- ok -[22] $ mkdir d2/d -- ok -[26] $ touch d3/f -- ok -[28] $ mkdir d3/d -- ok -[31] $ touch d4/f -- ok -[32] $ mkdir d4/d -- ok -[33] $ su -- ok -[34] $ cd .. -- ok -[35] $ rm -rf d -- ok -19 commands (19 passed, 0 failed) - -*** nfs4acl/ctime.test *** - -[1] $ mkdir d -- ok -[2] $ cd d -- ok -[4] $ whoami -- ok -[7] $ touch a b -- ok -[8] $ sleep 1 -- ok -[11] $ su bin -- ok -[12] $ touch a -- ok -[17] $ su -- ok -[18] $ nfs4acl --set 'bin:rw::allow' a -- ok -[20] $ su bin -- ok -[21] $ touch a -- ok -[22] $ [ b -ot a ] || echo 'b should be older than a' -- ok -[23] $ touch -r b a -- ok -[27] $ su -- ok -[28] $ nfs4acl --set 'bin:rwt::allow' a -- ok -[30] $ su bin -- ok -[31] $ touch -r b a -- ok -[32] $ [ b -ot a -o a -ot b ] && echo 'a should be as old as b' -- ok -[34] $ su -- ok -[35] $ cd .. -- ok -[36] $ rm -rf d -- ok -21 commands (21 passed, 0 failed) - -*** nfs4acl/delete.test *** - -[1] $ mkdir d -- ok -[2] $ cd d -- ok -[4] $ whoami -- ok -[7] $ id -Gn daemon -- ok -[10] $ mkdir n1 -- ok -[11] $ touch n1/f -- ok -[13] $ mkdir d2 d3 d4 d5 d6 d7 -- ok -[14] $ touch d2/f d3/f d4/f d5/f d6/f d7/f d7/g -- ok -[15] $ chown daemon d2 -- ok -[16] $ chgrp bin d3 -- ok -[17] $ chmod g+w d3 -- ok -[18] $ nfs4acl --set 'daemon:wx::allow' d4 -- ok -[19] $ nfs4acl --set 'daemon:d::allow' d5 -- ok -[20] $ nfs4acl --set 'daemon:xd::allow' d6 -- ok -[21] $ nfs4acl --set 'daemon:D::allow' d7/f d7/g -- ok -[22] $ chmod 664 d7/g -- ok -[24] $ mkdir s2 s3 s4 s5 s6 s7 -- ok -[25] $ chmod +t s2 s3 s4 s5 s6 s7 -- ok -[26] $ touch s2/f s3/f s4/f s5/f s6/f s7/f s7/g -- ok -[27] $ chown daemon s2 -- ok -[28] $ chgrp bin s3 -- ok -[29] $ chmod g+w s3 -- ok -[30] $ nfs4acl --set 'daemon:wx::allow' s4 -- ok -[31] $ nfs4acl --set 'daemon:d::allow' s5 -- ok -[32] $ nfs4acl --set 'daemon:xd::allow' s6 -- ok -[33] $ nfs4acl --set 'daemon:D::allow' s7/f -- ok -[34] $ nfs4acl --set 'daemon:D::allow' s7/g s7/g -- ok -[35] $ chmod 664 s7/g -- ok -[37] $ su daemon -- ok -[40] $ rm n1/f -- ok -[44] $ rm d2/f s2/f -- ok -[48] $ rm d3/f s3/f -- ok -[53] $ rm d4/f s4/f -- ok -[58] $ rm d5/f s5/f -- ok -[64] $ rm d6/f s6/f -- ok -[68] $ rm d7/f s7/f -- ok -[71] $ rm d7/g s7/g -- ok -[75] $ su -- ok -[76] $ cd .. -- ok -[77] $ rm -rf d -- ok -40 commands (40 passed, 0 failed) - -*** nfs4acl/unrepresentable.test *** - -[4] $ rm -rf d -- ok -[5] $ mkdir d -- ok -[6] $ cd d -- ok -[8] $ touch x -- ok -[10] $ nfs4acl --set 'group@:rw::allow' x -- ok -[11] $ chmod 600 x -- ok -[12] $ ls -l x | cut -d ' ' -f 1 -- ok -[14] $ nfs4acl --get x -- ok -[17] $ rm -f x -- ok -[19] $ cd .. -- ok -[20] $ rm -rf d -- ok -11 commands (11 passed, 0 failed) - -*** nfs4acl/write-vs-append.test *** - -[1] $ mkdir d -- ok -[2] $ cd d -- ok -[4] $ whoami -- ok -[7] $ touch a b c d e f -- ok -[8] $ nfs4acl --set 'owner@:*::allow' a -- ok -[9] $ nfs4acl --set 'owner@:*::allow bin:w::allow' b -- ok -[10] $ nfs4acl --set 'owner@:*::allow bin:a::allow' c -- ok -[11] $ nfs4acl --set 'owner@:*::allow bin:wa::allow' d -- ok -[12] $ nfs4acl --set 'bin:a::deny owner@:*::allow bin:w::allow' e -- ok -[13] $ nfs4acl --set 'bin:w::deny owner@:*::allow bin:a::allow' f -- ok -[15] $ su bin -- ok -[16] $ echo a > a -- ok -[18] $ echo b > b -- ok -[19] $ echo c > c -- ok -[21] $ echo d > d -- ok -[22] $ echo e > e -- ok -[23] $ echo f > f -- ok -[26] $ echo A >> a -- ok -[28] $ echo B >> b -- ok -[30] $ echo C >> c -- ok -[31] $ echo D >> d -- ok -[32] $ echo E >> e -- ok -[34] $ echo F >> f -- ok -[36] $ su -- ok -[37] $ cat a b c d e f -- ok -[45] $ cd .. -- ok -[46] $ rm -rf d -- ok -27 commands (27 passed, 0 failed) diff --git a/tests/xfs/group b/tests/xfs/group index 9884329..4a67df1 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -176,7 +176,6 @@ 188 ci dir auto 189 mount auto quick 190 rw auto quick -191 nfs4acl auto 194 rw auto 195 ioctl dump auto quick 196 quota auto quick -- 2.5.0 From bfoster@redhat.com Wed Nov 18 08:31:53 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0642A7F37 for ; Wed, 18 Nov 2015 08:31:53 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id CF3378F8040 for ; Wed, 18 Nov 2015 06:31:49 -0800 (PST) X-ASG-Debug-ID: 1447857107-04bdf07f0af5e90001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id wpfKd49OhZp95yWD (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 18 Nov 2015 06:31:48 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id BA6DCC0BB281; Wed, 18 Nov 2015 14:31:47 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAIEVkiW004597; Wed, 18 Nov 2015 09:31:47 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 04D5C122406; Wed, 18 Nov 2015 09:31:45 -0500 (EST) Date: Wed, 18 Nov 2015 09:31:45 -0500 From: Brian Foster To: kernel test robot Cc: lkp@01.org, LKML , Dave Chinner , Dave Chinner , xfs@oss.sgi.com Subject: Re: [lkp] [xfs] a45086e27d: -100.0% xfstests.xfs.033.seconds Message-ID: <20151118143145.GA44298@bfoster.bfoster> X-ASG-Orig-Subj: Re: [lkp] [xfs] a45086e27d: -100.0% xfstests.xfs.033.seconds References: <87d1v7aj72.fsf@yhuang-dev.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87d1v7aj72.fsf@yhuang-dev.intel.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447857108 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 cc linux-xfs On Wed, Nov 18, 2015 at 02:57:21PM +0800, kernel test robot wrote: > FYI, we noticed the below changes on > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > commit a45086e27dfa21a4b39134f7505c8f60a3ecdec4 ("xfs: validate metadata LSNs against log on v5 superblocks") > > 2015-11-17 05:11:29 export TEST_DIR=/fs/sdd1 > 2015-11-17 05:11:29 export TEST_DEV=/dev/sdd1 > 2015-11-17 05:11:29 export FSTYP=xfs > 2015-11-17 05:11:29 export SCRATCH_MNT=/fs/scratch > 2015-11-17 05:11:29 mkdir /fs/scratch -p > 2015-11-17 05:11:29 export SCRATCH_DEV=/dev/sdg1 > 2015-11-17 05:11:29 export SCRATCH_LOGDEV=/dev/sdh1 > 2015-11-17 05:11:29 ./check xfs/004 xfs/010 xfs/011 xfs/013 xfs/017 xfs/020 xfs/026 xfs/027 xfs/028 xfs/031 xfs/032 xfs/033 xfs/041 xfs/042 xfs/046 xfs/047 xfs/049 xfs/050 xfs/054 xfs/056 xfs/059 xfs/060 xfs/061 xfs/063 xfs/064 xfs/065 xfs/066 xfs/068 xfs/073 xfs/076 > FSTYP -- xfs (non-debug) > PLATFORM -- Linux/x86_64 lkp-ws02 4.3.0-rc2-00002-ga45086e > MKFS_OPTIONS -- -f -bsize=4096 /dev/sdg1 > MOUNT_OPTIONS -- /dev/sdg1 /fs/scratch > > xfs/004 3s > xfs/010 13s > xfs/011 19s > xfs/013 318s > xfs/017 15s > xfs/020 82s > xfs/026 14s > xfs/027 15s > xfs/028 25s > xfs/031 58s > xfs/032 14s > xfs/033 - output mismatch (see /lkp/benchmarks/xfstests/results//xfs/033.out.bad) > --- tests/xfs/033.out 2015-11-12 16:56:51.000000000 +0800 > +++ /lkp/benchmarks/xfstests/results//xfs/033.out.bad 2015-11-17 05:21:38.091589526 +0800 > @@ -38,7 +38,19 @@ > Phase 7 - verify and correct link counts... > resetting inode INO nlinks from 1 to 2 > done > +mount: wrong fs type, bad option, bad superblock on /dev/sdg1, > + missing codepage or helper program, or other error > + > + In some cases useful info is found in syslog - try > ... > (Run 'diff -u tests/xfs/033.out /lkp/benchmarks/xfstests/results//xfs/033.out.bad' to see the entire diff) I reproduced this running xfs/033 directly on a 4.3.0-rc2+ kernel (linux-xfs tree) and xfsprogs-3.2.2 from fedora. The problem here is that the mount complains about an invalid metadata LSN. Via dmesg: ... XFS (dm-3): Mounting V5 Filesystem XFS (dm-3): Corruption warning: Metadata has LSN (1:16) ahead of current LSN (1:2). Please unmount and run xfs_repair (>= v4.3) to resolve. XFS (dm-3): log mount/recovery failed: error -22 XFS (dm-3): log mount failed ... This occurs because older versions of xfs_repair unconditionally zero out the log, which can lead to corruption after a crash on v5 superblock (-m crc=1) filesystems. Therefore, the invalid log state is detected in the kernel as of the commit referenced above and ultimately fixed in xfsprogs v4.3. In other words, XFS on a v4.4 kernel requires xfsprogs v4.3 or newer. I'm not sure what the xfsprogs release status is (tot looks like it's at 4.3.0-rc2), but the fix is ultimately to upgrade to a supported userspace. Brian > xfs/041 18s > xfs/042 14s > xfs/046 15s > xfs/047 25s > xfs/049 48s > xfs/050 23s > xfs/054 15s > xfs/056 14s > xfs/059 18s > xfs/060 16s > xfs/061 14s > xfs/063 14s > xfs/064 228s > xfs/065 35s > xfs/066 28s > xfs/068 25s > xfs/073 16s > xfs/076 53s > Ran: xfs/004 xfs/010 xfs/011 xfs/013 xfs/017 xfs/020 xfs/026 xfs/027 xfs/028 xfs/031 xfs/032 xfs/033 xfs/041 xfs/042 xfs/046 xfs/047 xfs/049 xfs/050 xfs/054 xfs/056 xfs/059 xfs/060 xfs/061 xfs/063 xfs/064 xfs/065 xfs/066 xfs/068 xfs/073 xfs/076 > Failures: xfs/033 > Failed 1 of 30 tests > > > ========================================================================================= > tbox_group/testcase/rootfs/kconfig/compiler/disk/fs/test: > lkp-ws02/xfstests/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/4HDD/xfs/xfs-mid1 > > commit: > b7cdc66be54b64daef593894d12ecc405f117829 > a45086e27dfa21a4b39134f7505c8f60a3ecdec4 > > b7cdc66be54b64da a45086e27dfa21a4b39134f750 > ---------------- -------------------------- > fail:runs %reproduction fail:runs > | | | > :4 100% 4:4 last_state.xfstests.exit_code.1 > :4 100% 4:4 xfstests.nr_fail > :4 100% 4:4 xfstests.xfs.033.fail > :4 25% 1:4 kmsg.XFS(loop0):Filesystem_has_duplicate_UUID#-#-#f7b-b747-f26a6b2b589b-can't_mount > :4 25% 1:4 kmsg.XFS(loop0):Filesystem_has_duplicate_UUID#-#c55-#af8-a93b-#c6382174ba-can't_mount > 1:4 -25% :4 kmsg.XFS(loop0):Filesystem_has_duplicate_UUID#-#d5c-#dd8-#c4c-#b9758dd7946-can't_mount > 1:4 -25% :4 kmsg.XFS(loop0):Filesystem_has_duplicate_UUID#-#d8b-#bd0-bd22-be703a050d73-can't_mount > :4 25% 1:4 kmsg.XFS(loop0):Filesystem_has_duplicate_UUID#-#e49-#-#f14-c1f5b7a39914-can't_mount > :4 25% 1:4 kmsg.XFS(loop0):Filesystem_has_duplicate_UUID#-#f2c-#ba-#-#a8309204098-can't_mount > 1:4 -25% :4 kmsg.XFS(loop0):Filesystem_has_duplicate_UUID#-#f88-#-a30c-f7972224a2c2-can't_mount > 1:4 -25% :4 kmsg.XFS(loop0):Filesystem_has_duplicate_UUID#-a0f8-#-b678-a0e21fca1aea-can't_mount > :4 100% 4:4 kmsg.XFS(sdg1):log_mount/recovery_failed:error > > lkp-ws02: Westmere-EP > Memory: 16G > > To reproduce: > > git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git > cd lkp-tests > bin/lkp install job.yaml # job file is attached in this email > bin/lkp run job.yaml > > > Disclaimer: > Results have been estimated based on internal Intel analysis and are provided > for informational purposes only. Any difference in system hardware or software > design or configuration may affect actual performance. > > > Thanks, > Ying Huang > --- > LKP_SERVER: inn > LKP_CGI_PORT: 80 > LKP_CIFS_PORT: 139 > testcase: xfstests > default-monitors: > wait: activate-monitor > kmsg: > vmstat: > interval: 10 > default-watchdogs: > oom-killer: > watchdog: > commit: 96a2f2162deb97760a44ad8558e374342260cee6 > model: Westmere-EP > memory: 16G > nr_hdd_partitions: 11 > hdd_partitions: "/dev/disk/by-id/scsi-35000c500*-part1" > swap_partitions: > rootfs_partition: "/dev/disk/by-id/ata-WDC_WD1002FAEX-00Z3A0_WD-WCATR5408564-part3" > cpufreq_governor: > category: functional > disk: 4HDD > fs: xfs > xfstests: > test: xfs-mid1 > queue: cyclic > testbox: lkp-ws02 > tbox_group: lkp-ws02 > kconfig: x86_64-rhel > enqueue_time: 2015-11-14 09:35:40.999257430 +08:00 > id: 37df3a54bced8a69c8daf7c99bfff44d990622e7 > user: lkp > compiler: gcc-4.9 > head_commit: 96a2f2162deb97760a44ad8558e374342260cee6 > base_commit: 6a13feb9c82803e2b815eca72fa7a9f5561d7861 > branch: linux-devel/devel-hourly-2015111410 > kernel: "/pkg/linux/x86_64-rhel/gcc-4.9/96a2f2162deb97760a44ad8558e374342260cee6/vmlinuz-4.3.0-bochs-virtio-gpu-wl-ath-16719-g96a2f21" > rootfs: debian-x86_64-2015-02-07.cgz > result_root: "/result/xfstests/4HDD-xfs-xfs-mid1/lkp-ws02/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/96a2f2162deb97760a44ad8558e374342260cee6/0" > job_file: "/lkp/scheduled/lkp-ws02/cyclic_xfstests-4HDD-xfs-xfs-mid1-x86_64-rhel-CYCLIC_HEAD-96a2f2162deb97760a44ad8558e374342260cee6-20151114-75902-1fjjdep-0.yaml" > dequeue_time: 2015-11-14 12:49:18.590161421 +08:00 > nr_cpu: "$(nproc)" > max_uptime: 3600 > initrd: "/osimage/debian/debian-x86_64-2015-02-07.cgz" > bootloader_append: > - root=/dev/ram0 > - user=lkp > - job=/lkp/scheduled/lkp-ws02/cyclic_xfstests-4HDD-xfs-xfs-mid1-x86_64-rhel-CYCLIC_HEAD-96a2f2162deb97760a44ad8558e374342260cee6-20151114-75902-1fjjdep-0.yaml > - ARCH=x86_64 > - kconfig=x86_64-rhel > - branch=linux-devel/devel-hourly-2015111410 > - commit=96a2f2162deb97760a44ad8558e374342260cee6 > - BOOT_IMAGE=/pkg/linux/x86_64-rhel/gcc-4.9/96a2f2162deb97760a44ad8558e374342260cee6/vmlinuz-4.3.0-bochs-virtio-gpu-wl-ath-16719-g96a2f21 > - max_uptime=3600 > - RESULT_ROOT=/result/xfstests/4HDD-xfs-xfs-mid1/lkp-ws02/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/96a2f2162deb97760a44ad8558e374342260cee6/0 > - LKP_SERVER=inn > - |- > ipmi_watchdog.start_now=1 > > earlyprintk=ttyS0,115200 systemd.log_level=err > debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 > panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 > console=ttyS0,115200 console=tty0 vga=normal > > rw > lkp_initrd: "/lkp/lkp/lkp-x86_64.cgz" > modules_initrd: "/pkg/linux/x86_64-rhel/gcc-4.9/96a2f2162deb97760a44ad8558e374342260cee6/modules.cgz" > bm_initrd: "/osimage/deps/debian-x86_64-2015-02-07.cgz/lkp.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/run-ipconfig.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/fs.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/xfstests.cgz,/lkp/benchmarks/xfstests.cgz" > job_state: finished > loadavg: 0.66 0.72 0.56 1/350 26465 > start_time: '1447476647' > end_time: '1447477486' > version: "/lkp/lkp/.src-20151113-180526" > mkfs -t xfs /dev/sdd1 > mkfs -t xfs /dev/sdk1 > mkfs -t xfs /dev/sdg1 > mkfs -t xfs /dev/sdh1 > mount -t xfs -o nobarrier,inode64 /dev/sdd1 /fs/sdd1 > mount -t xfs -o nobarrier,inode64 /dev/sdh1 /fs/sdh1 > mount -t xfs -o nobarrier,inode64 /dev/sdk1 /fs/sdk1 > mount -t xfs -o nobarrier,inode64 /dev/sdg1 /fs/sdg1 > export TEST_DIR=/fs/sdd1 > export TEST_DEV=/dev/sdd1 > export FSTYP=xfs > export SCRATCH_MNT=/fs/scratch > mkdir /fs/scratch -p > export SCRATCH_DEV=/dev/sdg1 > export SCRATCH_LOGDEV=/dev/sdh1 > ./check xfs/004 xfs/010 xfs/011 xfs/013 xfs/017 xfs/020 xfs/026 xfs/027 xfs/028 xfs/031 xfs/032 xfs/033 xfs/041 xfs/042 xfs/046 xfs/047 xfs/049 xfs/050 xfs/054 xfs/056 xfs/059 xfs/060 xfs/061 xfs/063 xfs/064 xfs/065 xfs/066 xfs/068 xfs/073 xfs/076 From BATV+ada3c04752a109adfb3f+4469+infradead.org+hch@bombadil.srs.infradead.org Wed Nov 18 09:11:51 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1693C7F37 for ; Wed, 18 Nov 2015 09:11:51 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id E9F23304032 for ; Wed, 18 Nov 2015 07:11:47 -0800 (PST) X-ASG-Debug-ID: 1447859505-04cb6c0cd3e00b0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id OAnVIemO7r1iFLbU (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 18 Nov 2015 07:11:46 -0800 (PST) X-Barracuda-Envelope-From: BATV+ada3c04752a109adfb3f+4469+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zz4Of-0004N6-5y; Wed, 18 Nov 2015 15:11:45 +0000 Date: Wed, 18 Nov 2015 07:11:45 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Christoph Hellwig , Chris Mason , xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org Subject: Re: clone ioctl return values Message-ID: <20151118151145.GA5365@infradead.org> X-ASG-Orig-Subj: Re: clone ioctl return values References: <20151116120431.GA2860@infradead.org> <20151117002822.GA32467@birch.djwong.org> <20151117105433.GA18093@infradead.org> <20151117135745.GF17545@ret.masoncoding.com> <20151117152251.GA5392@infradead.org> <20151118030117.GA26143@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151118030117.GA26143@birch.djwong.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1447859506 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24508 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Tue, Nov 17, 2015 at 07:01:17PM -0800, Darrick J. Wong wrote: > Current btrfs returns EINVAL if the file isn't open for writing or is > append-only. I think EBADF captures the situation here better and > it's what Anna is pushing for copy_file_range. We can make the > change, but generic/157 will fail on old kernels if we do this. As the old errno was rather wrong compared to similar syscalls I'd say don't worry about this. > One other thing I noticed -- prior to Anna's patchset, trying to > invoke the reflink ioctl with a device, pipe, or socket as the > destination could return a variety of error codes (-ENOTTY, -EINVAL, > -ENOIOCTLCMD, etc.) which has all been replaced with -EOPNOTSUPP. > That seems like a reasonable direction to take the test case. > > Does this seem like a reasonable addition to the plan? -ENOIOCTLCMD should never reach userspace, this is a clear bug. -EINVAL also seems wrong, but ENOTTY is perfectly valid for an ioctl based implementation. So I'd say we should allow ENOTTY or -EOPNOTSUPP in the test case by using filters, and ensure btrfs and nfs only return those in 4.4 and maybe with backports to stable. > Should invalid inputs to the dedupe ioctl return the same error codes > as the same invalid inputs to the reflink ioctl? I've been working on > patches to hoist EXTENT_SAME to the VFS. I think so. EXTENT_SAME is so similar to clone that it should almost be a flag for it in the low level API. From ross.zwisler@linux.intel.com Wed Nov 18 10:18:12 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3375A7F37 for ; Wed, 18 Nov 2015 10:18:12 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id EB777304032 for ; Wed, 18 Nov 2015 08:18:08 -0800 (PST) X-ASG-Debug-ID: 1447863484-04bdf07f08f9a40001-NocioJ Received: from mga01.intel.com ([192.55.52.88]) by cuda.sgi.com with ESMTP id 8kvLs6rGbQLIEUA9 for ; Wed, 18 Nov 2015 08:18:04 -0800 (PST) X-Barracuda-Envelope-From: ross.zwisler@linux.intel.com X-Barracuda-Apparent-Source-IP: 192.55.52.88 X-ASG-Whitelist: EmailCat (corporate) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 18 Nov 2015 08:16:53 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,313,1444719600"; d="scan'208";a="841595205" Received: from theros.lm.intel.com (HELO linux.intel.com) ([10.232.112.87]) by fmsmga001.fm.intel.com with ESMTP; 18 Nov 2015 08:16:08 -0800 Date: Wed, 18 Nov 2015 09:16:08 -0700 From: Ross Zwisler To: Jan Kara Cc: Ross Zwisler , Dan Williams , Andreas Dilger , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Message-ID: <20151118161608.GA10656@linux.intel.com> X-ASG-Orig-Subj: Re: [PATCH v2 03/11] pmem: enable REQ_FUA/REQ_FLUSH handling Mail-Followup-To: Ross Zwisler , Jan Kara , Dan Williams , Andreas Dilger , "linux-kernel@vger.kernel.org" , "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Dave Chinner , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4 , linux-fsdevel , Linux MM , "linux-nvdimm@lists.01.org" , X86 ML , XFS Developers , Andrew Morton , Matthew Wilcox , Dave Hansen References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-4-git-send-email-ross.zwisler@linux.intel.com> <22E0F870-C1FB-431E-BF6C-B395A09A2B0D@dilger.ca> <20151116200950.GB9737@linux.intel.com> <20151118104055.GA6097@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151118104055.GA6097@quack.suse.cz> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: UNKNOWN[192.55.52.88] X-Barracuda-Start-Time: 1447863484 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 18, 2015 at 11:40:55AM +0100, Jan Kara wrote: > On Mon 16-11-15 13:09:50, Ross Zwisler wrote: > > On Fri, Nov 13, 2015 at 06:32:40PM -0800, Dan Williams wrote: > > > On Fri, Nov 13, 2015 at 4:43 PM, Andreas Dilger wrote: > > > > On Nov 13, 2015, at 5:20 PM, Dan Williams wrote: > > > >> > > > >> On Fri, Nov 13, 2015 at 4:06 PM, Ross Zwisler > > > >> wrote: > > > >>> Currently the PMEM driver doesn't accept REQ_FLUSH or REQ_FUA bios. These > > > >>> are sent down via blkdev_issue_flush() in response to a fsync() or msync() > > > >>> and are used by filesystems to order their metadata, among other things. > > > >>> > > > >>> When we get an msync() or fsync() it is the responsibility of the DAX code > > > >>> to flush all dirty pages to media. The PMEM driver then just has issue a > > > >>> wmb_pmem() in response to the REQ_FLUSH to ensure that before we return all > > > >>> the flushed data has been durably stored on the media. > > > >>> > > > >>> Signed-off-by: Ross Zwisler > > > >> > > > >> Hmm, I'm not seeing why we need this patch. If the actual flushing of > > > >> the cache is done by the core why does the driver need support > > > >> REQ_FLUSH? Especially since it's just a couple instructions. REQ_FUA > > > >> only makes sense if individual writes can bypass the "drive" cache, > > > >> but no I/O submitted to the driver proper is ever cached we always > > > >> flush it through to media. > > > > > > > > If the upper level filesystem gets an error when submitting a flush > > > > request, then it assumes the underlying hardware is broken and cannot > > > > be as aggressive in IO submission, but instead has to wait for in-flight > > > > IO to complete. > > > > > > Upper level filesystems won't get errors when the driver does not > > > support flush. Those requests are ended cleanly in > > > generic_make_request_checks(). Yes, the fs still needs to wait for > > > outstanding I/O to complete but in the case of pmem all I/O is > > > synchronous. There's never anything to await when flushing at the > > > pmem driver level. > > > > > > > Since FUA/FLUSH is basically a no-op for pmem devices, > > > > it doesn't make sense _not_ to support this functionality. > > > > > > Seems to be a nop either way. Given that DAX may lead to dirty data > > > pending to the device in the cpu cache that a REQ_FLUSH request will > > > not touch, its better to leave it all to the mm core to handle. I.e. > > > it doesn't make sense to call the driver just for two instructions > > > (sfence + pcommit) when the mm core is taking on the cache flushing. > > > Either handle it all in the mm or the driver, not a mixture. > > > > Does anyone know if ext4 and/or XFS alter their algorithms based on whether > > the driver supports REQ_FLUSH/REQ_FUA? Will the filesystem behave more > > efficiently with respect to their internal I/O ordering, etc., if PMEM > > advertises REQ_FLUSH/REQ_FUA support, even though we could do the same thing > > at the DAX layer? > > So the information whether the driver supports FLUSH / FUA is generally > ignored by filesystems. We issue REQ_FLUSH / REQ_FUA requests to achieve > required ordering for fs consistency and expect that block layer does the > right thing - i.e., if the device has volatile write cache, it will be > flushed, if it doesn't have it, the request will be ignored. So the > difference between supporting and not supporting REQ_FLUSH / REQ_FUA is > only in how block layer handles such requests. Cool, thank you for the info. Based on this I'll pull out the REQ_FLUSH/REQ_FUA patch for v3 of this series and move the wmb_pmem() call up to DAX as Dan suggests. If performance data shows that we can get a benefit from centralizing wmb_pmem() behind REQ_FUA/REQ_FLUSH, I'll add it back in later as part of that series. From arekm@maven.pl Wed Nov 18 16:36:30 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id AFD427F37 for ; Wed, 18 Nov 2015 16:36:30 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id A1775304039 for ; Wed, 18 Nov 2015 14:36:27 -0800 (PST) X-ASG-Debug-ID: 1447886181-04cb6c0cd2ed750001-NocioJ Received: from mail-lf0-f51.google.com (mail-lf0-f51.google.com [209.85.215.51]) by cuda.sgi.com with ESMTP id bqBaEE04NzSdzgLy (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 18 Nov 2015 14:36:22 -0800 (PST) X-Barracuda-Envelope-From: arekm@maven.pl X-Barracuda-Apparent-Source-IP: 209.85.215.51 Received: by lfdo63 with SMTP id o63so36488798lfd.2 for ; Wed, 18 Nov 2015 14:36:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maven.pl; s=maven; h=from:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; bh=9pJ4okAKG5vShqgQ3GkIqofXHXg2iN3Qffi+h97djBM=; b=SS8/N2wfPE7i5+X8qriBV+JiD9fO61qQm9YDPQc8UA8/Ljhuo6wxZHjl9Ye0+Mg+MA bsXYiTN5k6BQEEQ8or7oASbipubQEyHLzXirDCXb3EbSxBKK//vJ7ug4/eHSjNO+B9Z/ OQShMWn97Lv86yGeydkozoEogRf3jCQEGPc90= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:user-agent:cc:references :in-reply-to:mime-version:content-type:content-transfer-encoding :message-id; bh=9pJ4okAKG5vShqgQ3GkIqofXHXg2iN3Qffi+h97djBM=; b=j7ddPSXEvRmMsmR/70A97cYTRNHTNI6X+ucrSeQZD6ZX7PJtcF2lG4YMr0JsezmZuj OgBEaJ+Zec9XpqTnloHM64D49dqjKa+jL39ijw3T4IRgrugmDMIWuA2ZHcHJJk5sELGh jL0aMzJKs1IigFFXXlWpsQx8YxI78/Mn39yfvUt+18ZriGzrnaE/37+PFe0B/aWuYHBN LLOMOE5tJubTvhJeuVP9SKJVZPRPfn+RdrXrYwaCs3V7AxLGJzZLzwCx2ai82grwJDfc uqc7+Hc/JSdM2q/37uxbMDX4y/AMlzaCHxsDCMS/9/woWgVon64H9ezWwQTJ7kXsx8dS PG+g== X-Gm-Message-State: ALoCoQm3whG7brvSxd0/9yNpuzKySEAAK+rpuUSEmuzATp8E+ZpZE0KO0J+oGqAia87AUagtJkqy X-Received: by 10.25.43.149 with SMTP id r143mr1851181lfr.45.1447886180765; Wed, 18 Nov 2015 14:36:20 -0800 (PST) Received: from xps.localnet (85-222-71-204.dynamic.chello.pl. [85.222.71.204]) by smtp.gmail.com with ESMTPSA id w132sm748431lfd.11.2015.11.18.14.36.19 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 18 Nov 2015 14:36:19 -0800 (PST) From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= To: Michal Hocko Subject: Re: memory reclaim problems on fs usage Date: Wed, 18 Nov 2015 23:36:18 +0100 X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage User-Agent: KMail/1.13.7 (Linux/4.3.0; KDE/4.14.13; x86_64; ; ) Cc: Tetsuo Handa , htejun@gmail.com, cl@linux.com, linux-mm@kvack.org, xfs@oss.sgi.com References: <201511102313.36685.arekm@maven.pl> <201511151549.35299.arekm@maven.pl> <20151116161518.GI14116@dhcp22.suse.cz> In-Reply-To: <20151116161518.GI14116@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201511182336.18231.arekm@maven.pl> X-Barracuda-Connect: mail-lf0-f51.google.com[209.85.215.51] X-Barracuda-Start-Time: 1447886182 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24517 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Monday 16 of November 2015, Michal Hocko wrote: > On Sun 15-11-15 15:49:35, Arkadiusz Mi=C5=9Bkiewicz wrote: > > On Sunday 15 of November 2015, Tetsuo Handa wrote: > > > Arkadiusz Miskiewicz wrote: > > > > On Sunday 15 of November 2015, Tetsuo Handa wrote: > > > > > I think that the vmstat statistics now have correct values. > > > > >=20 > > > > > > But are these patches solving the problem or just hiding it? > > > > >=20 > > > > > Excuse me but I can't judge. > > > > >=20 > > > > > If you are interested in monitoring how vmstat statistics are > > > > > changing under stalled condition, you can try below patch. > > > >=20 > > > > Here is log with this and all previous patches applied: > > > > http://ixion.pld-linux.org/~arekm/log-mm-5.txt.gz > > >=20 > > > Regarding "Node 0 Normal" (min:7104kB low:8880kB high:10656kB), > > > all free: values look sane to me. I think that your problem was solve= d. > >=20 > > Great, thanks! > >=20 > > Will all (or part) of these patches > >=20 > > http://sprunge.us/GYBb >=20 > Migrate reserves are not a stable material I am afraid. "vmstat: > explicitly schedule per-cpu work on the CPU we need it to run on" > was not marked for stable either but I am not sure why it should make > any difference for your load. I understand that testing this is really > tedious but it would be better to know which of the patches actually > made a difference. Ok. In mean time I've tried 4.3.0 kernel + patches (the same as before + on= e=20 more) on second server which runs even more rsnapshot processes and also us= es=20 xfs on md raid 6. Patches: http://sprunge.us/DfIQ (debug patch from Tetsuo) http://sprunge.us/LQPF (backport of things from git + one from ml) The problem is now with high order allocations probably: http://ixion.pld-linux.org/~arekm/log-mm-2srv-1.txt.gz System is doing very slow progress and for example depmod run took 2 hours http://sprunge.us/HGbE Sometimes I was able to ssh-in, dmesg took 10-15 minutes but sometimes it=20 worked fast for short period. Ideas? ps. I also had one problem with low order allocation but only once and wasn= 't=20 able to reproduce so far. I was running kernel with backport patches but no= =20 debug patch, so got only this in logs: http://sprunge.us/WPXi =2D-=20 Arkadiusz Mi=C5=9Bkiewicz, arekm / ( maven.pl | pld-linux.org ) From vmdgb@rnrnd.com Thu Nov 19 03:02:39 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.8 required=5.0 tests=HK_RANDOM_ENVFROM,HTML_MESSAGE, MIME_HTML_ONLY autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B21E67F37 for ; Thu, 19 Nov 2015 03:02:39 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9E4DD8F8039 for ; Thu, 19 Nov 2015 01:02:36 -0800 (PST) X-ASG-Debug-ID: 1447923752-04cbb0605b13cf60001-NocioJ Received: from rnrnd.com ([114.96.72.73]) by cuda.sgi.com with ESMTP id GEcgwvNgFWzuftBc for ; Thu, 19 Nov 2015 01:02:33 -0800 (PST) X-Barracuda-Envelope-From: vmdgb@rnrnd.com X-Barracuda-Apparent-Source-IP: 114.96.72.73 Received: from SKY-20150201SFT ([127.0.0.1]) by localhost via TCP with ESMTPA; 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Thu, 19 Nov 2015 05:03:48 -0800 (PST) Received: by 10.37.215.19 with HTTP; Thu, 19 Nov 2015 05:03:48 -0800 (PST) Date: Thu, 19 Nov 2015 14:03:48 +0100 Message-ID: Subject: Re: "Internal error xfs_attr3_leaf_write_verify at line 216", "directory flags set on non-directory inode" and other errors From: =?UTF-8?Q?Adam_B=C5=82aszczykowski?= X-ASG-Orig-Subj: Re: "Internal error xfs_attr3_leaf_write_verify at line 216", "directory flags set on non-directory inode" and other errors To: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=001a11429f34ca518e0524e46328 X-Barracuda-Connect: mail-yk0-f176.google.com[209.85.160.176] X-Barracuda-Start-Time: 1447938229 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24535 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --001a11429f34ca518e0524e46328 Content-Type: text/plain; charset=UTF-8 Hello, I have updated kernel version 3.4 to 3.10 and I encountered the same problem. System is working, but periodically I get following errors in kernel logs: [20367.539731] XFS (dm-4): Internal error xfs_attr3_leaf_read_verify at line 256 of file fs/xfs/xfs_attr_leaf.c. Caller 0xffffffff81263bcd [20367.539731] [20367.539732] CPU: 1 PID: 2240 Comm: kworker/1:1H Tainted: G O 3.10.93 #15 [20367.539733] Hardware name: Intel Corporation S2600IP/S2600IP, BIOS SE5C600.86B.02.03.0003.041920141333 04/19/2014 [20367.539736] Workqueue: xfslogd xfs_buf_iodone_work [20367.539738] ffffffff816bf9df 000000000000007e ffffffff81265a42 ffffffff81263bcd [20367.539739] ffff000000000100 ffff8802c8e40e40 ffff88085257f080 ffff88085adf5000 [20367.539740] ffff88087fc38f00 0000000000000000 ffffffff8127e95f ffffffff81263bcd [20367.539741] Call Trace: [20367.539744] [] ? dump_stack+0xd/0x17 [20367.539746] [] ? xfs_corruption_error+0x62/0x90 [20367.539748] [] ? xfs_buf_iodone_work+0x8d/0xb0 [20367.539750] [] ? xfs_attr3_leaf_read_verify+0x6f/0x100 [20367.539751] [] ? xfs_buf_iodone_work+0x8d/0xb0 [20367.539753] [] ? xfs_buf_iodone_work+0x8d/0xb0 [20367.539754] [] ? process_one_work+0x141/0x3b0 [20367.539757] [] ? pwq_activate_delayed_work+0x2e/0x50 [20367.539758] [] ? worker_thread+0x112/0x370 [20367.539759] [] ? manage_workers.isra.28+0x290/0x290 [20367.539761] [] ? kthread+0xb3/0xc0 [20367.539763] [] ? sched_clock+0x5/0x10 [20367.539764] [] ? __alloc_workqueue_key+0x210/0x510 [20367.539766] [] ? kthread_freezable_should_stop+0x60/0x60 [20367.539768] [] ? ret_from_fork+0x58/0x90 [20367.539770] [] ? kthread_freezable_should_stop+0x60/0x60 [20367.539770] XFS (dm-4): Corruption detected. Unmount and run xfs_repair [20367.539777] XFS (dm-4): metadata I/O error: block 0x19a4775b18 ("xfs_trans_read_buf_map") error 117 numblks 8 As in other cases from this thread, xfs repair hasn't found any problems. Here is xfs_dump from block 0x19a4775b18: [20367.539731] XFS (dm-4): Internal error xfs_attr3_leaf_read_verify at line 256 of file fs/xfs/xfs_attr_leaf.c. Caller 0xffffffff81263bcd [20367.539731] [20367.539732] CPU: 1 PID: 2240 Comm: kworker/1:1H Tainted: G O 3.10.93 #15 [20367.539733] Hardware name: Intel Corporation S2600IP/S2600IP, BIOS SE5C600.86B.02.03.0003.041920141333 04/19/2014 [20367.539736] Workqueue: xfslogd xfs_buf_iodone_work [20367.539738] ffffffff816bf9df 000000000000007e ffffffff81265a42 ffffffff81263bcd [20367.539739] ffff000000000100 ffff8802c8e40e40 ffff88085257f080 ffff88085adf5000 [20367.539740] ffff88087fc38f00 0000000000000000 ffffffff8127e95f ffffffff81263bcd [20367.539741] Call Trace: [20367.539744] [] ? dump_stack+0xd/0x17 [20367.539746] [] ? xfs_corruption_error+0x62/0x90 [20367.539748] [] ? xfs_buf_iodone_work+0x8d/0xb0 [20367.539750] [] ? xfs_attr3_leaf_read_verify+0x6f/0x100 [20367.539751] [] ? xfs_buf_iodone_work+0x8d/0xb0 [20367.539753] [] ? xfs_buf_iodone_work+0x8d/0xb0 [20367.539754] [] ? process_one_work+0x141/0x3b0 [20367.539757] [] ? pwq_activate_delayed_work+0x2e/0x50 [20367.539758] [] ? worker_thread+0x112/0x370 [20367.539759] [] ? manage_workers.isra.28+0x290/0x290 [20367.539761] [] ? kthread+0xb3/0xc0 [20367.539763] [] ? sched_clock+0x5/0x10 [20367.539764] [] ? __alloc_workqueue_key+0x210/0x510 [20367.539766] [] ? kthread_freezable_should_stop+0x60/0x60 [20367.539768] [] ? ret_from_fork+0x58/0x90 [20367.539770] [] ? kthread_freezable_should_stop+0x60/0x60 [20367.539770] XFS (dm-4): Corruption detected. Unmount and run xfs_repair [20367.539777] XFS (dm-4): metadata I/O error: block 0x19a4775b18 ("xfs_trans_read_buf_map") error 117 numblks 8 xfs_db> convert daddr 0x19a4775b18 fsb 0x3348eeb96 (13766683542) xfs_db> fsb 0x3348eeb96 xfs_db> p 000: 00000000 00000000 fbee0000 00000000 10000000 00200fe0 00000000 00000000 020: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 040: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 060: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 080: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 100: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 120: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 140: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 160: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 180: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 200: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 220: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 240: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 260: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 280: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 2a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 2c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 2e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 300: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 320: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 340: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 360: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 380: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 400: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 420: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 440: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 460: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 480: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 4a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 4c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 4e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 500: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 520: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 540: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 560: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 580: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 600: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 620: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 640: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 660: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 680: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 6a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 6c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 6e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 700: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 720: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 740: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 760: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 780: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 7e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 800: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 820: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 840: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 860: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 880: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 8a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 8c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 8e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 900: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 920: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 940: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 960: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 980: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 a00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 a20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 a40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 a60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 a80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 aa0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ac0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ae0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 b80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ba0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 be0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ca0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 cc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ce0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 d00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 d20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 d40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 d60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 d80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 da0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 de0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 e00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 e20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 e40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 e60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 e80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ea0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ec0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 f00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 f20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 f40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 f60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 f80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 fa0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 fe0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 xfs_db> type attr xfs_db> p hdr.info.forw = 0 hdr.info.back = 0 hdr.info.magic = 0xfbee hdr.count = 0 hdr.usedbytes = 0 hdr.firstused = 4096 hdr.holes = 0 hdr.freemap[0-2] = [base,size] 0:[32,4064] 1:[0,0] 2:[0,0] After converting the address to inode and running xfs_dump I get following output: xfs_db> convert daddr 0x19a4775b18 inode 0x3348eeb960 (220266936672) xfs_db> inode 0x3348eeb960 xfs_db> p core.magic = 0 core.mode = 0 core.version = 0 core.format = 0 (dev) core.uid = 4226678784 core.gid = 0 core.flushiter = 0 core.atime.sec = Thu Jan 1 01:00:00 1970 core.atime.nsec = 000000000 core.mtime.sec = Thu Jan 1 01:00:00 1970 core.mtime.nsec = 000000000 core.ctime.sec = Thu Jan 1 01:00:00 1970 core.ctime.nsec = 000000000 core.size = 0 core.nblocks = 0 core.extsize = 0 core.nextents = 0 core.naextents = 0 core.forkoff = 0 core.aformat = 0 (dev) core.dmevmask = 0 core.dmstate = 0 core.newrtbm = 0 core.prealloc = 0 core.realtime = 0 core.immutable = 0 core.append = 0 core.sync = 0 core.noatime = 0 core.nodump = 0 core.rtinherit = 0 core.projinherit = 0 core.nosymlinks = 0 core.extsz = 0 core.extszinherit = 0 core.nodefrag = 0 core.filestream = 0 core.gen = 0 next_unlinked = 0 u.dev = 0 It's strange, because there is no "extended attributes" record. Do you know what can cause such problem ? Is it fixed in new kernel version ? Thank you in advance ! Best regards Adam Blaszczykowski --001a11429f34ca518e0524e46328 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hello,
I have updated kernel version 3.4 to 3.10 and I = encountered the same problem. System is working, but periodically I get fol= lowing errors in kernel logs:

[20367.539731] XFS (dm-4): Internal er= ror xfs_attr3_leaf_read_verify at line 256 of file fs/xfs/xfs_attr_leaf.c.= =C2=A0 Caller 0xffffffff81263bcd
[20367.539731]
[20367.539732] CPU: 1= PID: 2240 Comm: kworker/1:1H Tainted: G=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0 O 3.10.93 #15
[20367.539733] Hardware name: = Intel Corporation S2600IP/S2600IP, BIOS SE5C600.86B.02.03.0003.041920141333= 04/19/2014
[20367.539736] Workqueue: xfslogd xfs_buf_iodone_work
[20= 367.539738]=C2=A0 ffffffff816bf9df 000000000000007e ffffffff81265a42 ffffff= ff81263bcd
[20367.539739]=C2=A0 ffff000000000100 ffff8802c8e40e40 ffff88= 085257f080 ffff88085adf5000
[20367.539740]=C2=A0 ffff88087fc38f00 000000= 0000000000 ffffffff8127e95f ffffffff81263bcd
[20367.539741] Call Trace:<= br>[20367.539744]=C2=A0 [<ffffffff816bf9df>] ? dump_stack+0xd/0x17[20367.539746]=C2=A0 [<ffffffff81265a42>] ? xfs_corruption_error+0x6= 2/0x90
[20367.539748]=C2=A0 [<ffffffff81263bcd>] ? xfs_buf_iodone_= work+0x8d/0xb0
[20367.539750]=C2=A0 [<ffffffff8127e95f>] ? xfs_att= r3_leaf_read_verify+0x6f/0x100
[20367.539751]=C2=A0 [<ffffffff81263bc= d>] ? xfs_buf_iodone_work+0x8d/0xb0
[20367.539753]=C2=A0 [<fffffff= f81263bcd>] ? xfs_buf_iodone_work+0x8d/0xb0
[20367.539754]=C2=A0 [<= ;ffffffff8105dd01>] ? process_one_work+0x141/0x3b0
[20367.539757]=C2= =A0 [<ffffffff8105b79e>] ? pwq_activate_delayed_work+0x2e/0x50
[20= 367.539758]=C2=A0 [<ffffffff8105ec42>] ? worker_thread+0x112/0x370[20367.539759]=C2=A0 [<ffffffff8105eb30>] ? manage_workers.isra.28+0= x290/0x290
[20367.539761]=C2=A0 [<ffffffff810647e3>] ? kthread+0xb= 3/0xc0
[20367.539763]=C2=A0 [<ffffffff81012685>] ? sched_clock+0x5= /0x10
[20367.539764]=C2=A0 [<ffffffff81060000>] ? __alloc_workqueu= e_key+0x210/0x510
[20367.539766]=C2=A0 [<ffffffff81064730>] ? kthr= ead_freezable_should_stop+0x60/0x60
[20367.539768]=C2=A0 [<ffffffff81= 6cab18>] ? ret_from_fork+0x58/0x90
[20367.539770]=C2=A0 [<ffffffff= 81064730>] ? kthread_freezable_should_stop+0x60/0x60
[20367.539770] X= FS (dm-4): Corruption detected. Unmount and run xfs_repair
[20367.539777= ] XFS (dm-4): metadata I/O error: block 0x19a4775b18 ("xfs_trans_read_= buf_map") error 117 numblks 8


As in other cases from this = thread, xfs repair hasn't found any problems.
Here is xfs_dump from= block 0x19a4775b18:

[20367.539731] XFS (dm-4): Internal error xfs_a= ttr3_leaf_read_verify at line 256 of file fs/xfs/xfs_attr_leaf.c.=C2=A0 Cal= ler 0xffffffff81263bcd
[20367.539731]
[20367.539732] CPU: 1 PID: 2240= Comm: kworker/1:1H Tainted: G=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0 O 3.10.93 #15
[20367.539733] Hardware name: Intel Corpor= ation S2600IP/S2600IP, BIOS SE5C600.86B.02.03.0003.041920141333 04/19/2014<= br>[20367.539736] Workqueue: xfslogd xfs_buf_iodone_work
[20367.539738]= =C2=A0 ffffffff816bf9df 000000000000007e ffffffff81265a42 ffffffff81263bcd<= br>[20367.539739]=C2=A0 ffff000000000100 ffff8802c8e40e40 ffff88085257f080 = ffff88085adf5000
[20367.539740]=C2=A0 ffff88087fc38f00 0000000000000000 = ffffffff8127e95f ffffffff81263bcd
[20367.539741] Call Trace:
[20367.5= 39744]=C2=A0 [<ffffffff816bf9df>] ? dump_stack+0xd/0x17
[20367.539= 746]=C2=A0 [<ffffffff81265a42>] ? xfs_corruption_error+0x62/0x90
[= 20367.539748]=C2=A0 [<ffffffff81263bcd>] ? xfs_buf_iodone_work+0x8d/0= xb0
[20367.539750]=C2=A0 [<ffffffff8127e95f>] ? xfs_attr3_leaf_rea= d_verify+0x6f/0x100
[20367.539751]=C2=A0 [<ffffffff81263bcd>] ? xf= s_buf_iodone_work+0x8d/0xb0
[20367.539753]=C2=A0 [<ffffffff81263bcd&g= t;] ? xfs_buf_iodone_work+0x8d/0xb0
[20367.539754]=C2=A0 [<ffffffff81= 05dd01>] ? process_one_work+0x141/0x3b0
[20367.539757]=C2=A0 [<fff= fffff8105b79e>] ? pwq_activate_delayed_work+0x2e/0x50
[20367.539758]= =C2=A0 [<ffffffff8105ec42>] ? worker_thread+0x112/0x370
[20367.539= 759]=C2=A0 [<ffffffff8105eb30>] ? manage_workers.isra.28+0x290/0x290<= br>[20367.539761]=C2=A0 [<ffffffff810647e3>] ? kthread+0xb3/0xc0
[= 20367.539763]=C2=A0 [<ffffffff81012685>] ? sched_clock+0x5/0x10
[2= 0367.539764]=C2=A0 [<ffffffff81060000>] ? __alloc_workqueue_key+0x210= /0x510
[20367.539766]=C2=A0 [<ffffffff81064730>] ? kthread_freezab= le_should_stop+0x60/0x60
[20367.539768]=C2=A0 [<ffffffff816cab18>]= ? ret_from_fork+0x58/0x90
[20367.539770]=C2=A0 [<ffffffff81064730>= ;] ? kthread_freezable_should_stop+0x60/0x60
[20367.539770] XFS (dm-4): = Corruption detected. Unmount and run xfs_repair
[20367.539777] XFS (dm-4= ): metadata I/O error: block 0x19a4775b18 ("xfs_trans_read_buf_map&quo= t;) error 117 numblks 8

xfs_db> convert daddr 0x19a4775b18 fsb0x3348eeb96 (13766683542)

xfs_db> fsb 0x3348eeb96
xfs_db> = p
000: 00000000 00000000 fbee0000 00000000 10000000 00200fe0 00000000 00= 000000
020: 00000000 00000000 00000000 00000000 00000000 00000000 000000= 00 00000000
040: 00000000 00000000 00000000 00000000 00000000 00000000 0= 0000000 00000000
060: 00000000 00000000 00000000 00000000 00000000 00000= 000 00000000 00000000
080: 00000000 00000000 00000000 00000000 00000000 = 00000000 00000000 00000000
0a0: 00000000 00000000 00000000 00000000 0000= 0000 00000000 00000000 00000000
0c0: 00000000 00000000 00000000 00000000= 00000000 00000000 00000000 00000000
0e0: 00000000 00000000 00000000 000= 00000 00000000 00000000 00000000 00000000
100: 00000000 00000000 0000000= 0 00000000 00000000 00000000 00000000 00000000
120: 00000000 00000000 00= 000000 00000000 00000000 00000000 00000000 00000000
140: 00000000 000000= 00 00000000 00000000 00000000 00000000 00000000 00000000
160: 00000000 0= 0000000 00000000 00000000 00000000 00000000 00000000 00000000
180: 00000= 000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1a0: = 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
= 1c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000000= 0
1e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00= 000000
200: 00000000 00000000 00000000 00000000 00000000 00000000 000000= 00 00000000
220: 00000000 00000000 00000000 00000000 00000000 00000000 0= 0000000 00000000
240: 00000000 00000000 00000000 00000000 00000000 00000= 000 00000000 00000000
260: 00000000 00000000 00000000 00000000 00000000 = 00000000 00000000 00000000
280: 00000000 00000000 00000000 00000000 0000= 0000 00000000 00000000 00000000
2a0: 00000000 00000000 00000000 00000000= 00000000 00000000 00000000 00000000
2c0: 00000000 00000000 00000000 000= 00000 00000000 00000000 00000000 00000000
2e0: 00000000 00000000 0000000= 0 00000000 00000000 00000000 00000000 00000000
300: 00000000 00000000 00= 000000 00000000 00000000 00000000 00000000 00000000
320: 00000000 000000= 00 00000000 00000000 00000000 00000000 00000000 00000000
340: 00000000 0= 0000000 00000000 00000000 00000000 00000000 00000000 00000000
360: 00000= 000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
380: = 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
= 3a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000000= 0
3c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00= 000000
3e0: 00000000 00000000 00000000 00000000 00000000 00000000 000000= 00 00000000
400: 00000000 00000000 00000000 00000000 00000000 00000000 0= 0000000 00000000
420: 00000000 00000000 00000000 00000000 00000000 00000= 000 00000000 00000000
440: 00000000 00000000 00000000 00000000 00000000 = 00000000 00000000 00000000
460: 00000000 00000000 00000000 00000000 0000= 0000 00000000 00000000 00000000
480: 00000000 00000000 00000000 00000000= 00000000 00000000 00000000 00000000
4a0: 00000000 00000000 00000000 000= 00000 00000000 00000000 00000000 00000000
4c0: 00000000 00000000 0000000= 0 00000000 00000000 00000000 00000000 00000000
4e0: 00000000 00000000 00= 000000 00000000 00000000 00000000 00000000 00000000
500: 00000000 000000= 00 00000000 00000000 00000000 00000000 00000000 00000000
520: 00000000 0= 0000000 00000000 00000000 00000000 00000000 00000000 00000000
540: 00000= 000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
560: = 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
= 580: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000000= 0
5a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00= 000000
5c0: 00000000 00000000 00000000 00000000 00000000 00000000 000000= 00 00000000
5e0: 00000000 00000000 00000000 00000000 00000000 00000000 0= 0000000 00000000
600: 00000000 00000000 00000000 00000000 00000000 00000= 000 00000000 00000000
620: 00000000 00000000 00000000 00000000 00000000 = 00000000 00000000 00000000
640: 00000000 00000000 00000000 00000000 0000= 0000 00000000 00000000 00000000
660: 00000000 00000000 00000000 00000000= 00000000 00000000 00000000 00000000
680: 00000000 00000000 00000000 000= 00000 00000000 00000000 00000000 00000000
6a0: 00000000 00000000 0000000= 0 00000000 00000000 00000000 00000000 00000000
6c0: 00000000 00000000 00= 000000 00000000 00000000 00000000 00000000 00000000
6e0: 00000000 000000= 00 00000000 00000000 00000000 00000000 00000000 00000000
700: 00000000 0= 0000000 00000000 00000000 00000000 00000000 00000000 00000000
720: 00000= 000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
740: = 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
= 760: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000000= 0
780: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00= 000000
7a0: 00000000 00000000 00000000 00000000 00000000 00000000 000000= 00 00000000
7c0: 00000000 00000000 00000000 00000000 00000000 00000000 0= 0000000 00000000
7e0: 00000000 00000000 00000000 00000000 00000000 00000= 000 00000000 00000000
800: 00000000 00000000 00000000 00000000 00000000 = 00000000 00000000 00000000
820: 00000000 00000000 00000000 00000000 0000= 0000 00000000 00000000 00000000
840: 00000000 00000000 00000000 00000000= 00000000 00000000 00000000 00000000
860: 00000000 00000000 00000000 000= 00000 00000000 00000000 00000000 00000000
880: 00000000 00000000 0000000= 0 00000000 00000000 00000000 00000000 00000000
8a0: 00000000 00000000 00= 000000 00000000 00000000 00000000 00000000 00000000
8c0: 00000000 000000= 00 00000000 00000000 00000000 00000000 00000000 00000000
8e0: 00000000 0= 0000000 00000000 00000000 00000000 00000000 00000000 00000000
900: 00000= 000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
920: = 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
= 940: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000000= 0
960: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00= 000000
980: 00000000 00000000 00000000 00000000 00000000 00000000 000000= 00 00000000
9a0: 00000000 00000000 00000000 00000000 00000000 00000000 0= 0000000 00000000
9c0: 00000000 00000000 00000000 00000000 00000000 00000= 000 00000000 00000000
9e0: 00000000 00000000 00000000 00000000 00000000 = 00000000 00000000 00000000
a00: 00000000 00000000 00000000 00000000 0000= 0000 00000000 00000000 00000000
a20: 00000000 00000000 00000000 00000000= 00000000 00000000 00000000 00000000
a40: 00000000 00000000 00000000 000= 00000 00000000 00000000 00000000 00000000
a60: 00000000 00000000 0000000= 0 00000000 00000000 00000000 00000000 00000000
a80: 00000000 00000000 00= 000000 00000000 00000000 00000000 00000000 00000000
aa0: 00000000 000000= 00 00000000 00000000 00000000 00000000 00000000 00000000
ac0: 00000000 0= 0000000 00000000 00000000 00000000 00000000 00000000 00000000
ae0: 00000= 000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
b00: = 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
= b20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000000= 0
b40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00= 000000
b60: 00000000 00000000 00000000 00000000 00000000 00000000 000000= 00 00000000
b80: 00000000 00000000 00000000 00000000 00000000 00000000 0= 0000000 00000000
ba0: 00000000 00000000 00000000 00000000 00000000 00000= 000 00000000 00000000
bc0: 00000000 00000000 00000000 00000000 00000000 = 00000000 00000000 00000000
be0: 00000000 00000000 00000000 00000000 0000= 0000 00000000 00000000 00000000
c00: 00000000 00000000 00000000 00000000= 00000000 00000000 00000000 00000000
c20: 00000000 00000000 00000000 000= 00000 00000000 00000000 00000000 00000000
c40: 00000000 00000000 0000000= 0 00000000 00000000 00000000 00000000 00000000
c60: 00000000 00000000 00= 000000 00000000 00000000 00000000 00000000 00000000
c80: 00000000 000000= 00 00000000 00000000 00000000 00000000 00000000 00000000
ca0: 00000000 0= 0000000 00000000 00000000 00000000 00000000 00000000 00000000
cc0: 00000= 000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ce0: = 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
= d00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000000= 0
d20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00= 000000
d40: 00000000 00000000 00000000 00000000 00000000 00000000 000000= 00 00000000
d60: 00000000 00000000 00000000 00000000 00000000 00000000 0= 0000000 00000000
d80: 00000000 00000000 00000000 00000000 00000000 00000= 000 00000000 00000000
da0: 00000000 00000000 00000000 00000000 00000000 = 00000000 00000000 00000000
dc0: 00000000 00000000 00000000 00000000 0000= 0000 00000000 00000000 00000000
de0: 00000000 00000000 00000000 00000000= 00000000 00000000 00000000 00000000
e00: 00000000 00000000 00000000 000= 00000 00000000 00000000 00000000 00000000
e20: 00000000 00000000 0000000= 0 00000000 00000000 00000000 00000000 00000000
e40: 00000000 00000000 00= 000000 00000000 00000000 00000000 00000000 00000000
e60: 00000000 000000= 00 00000000 00000000 00000000 00000000 00000000 00000000
e80: 00000000 0= 0000000 00000000 00000000 00000000 00000000 00000000 00000000
ea0: 00000= 000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ec0: = 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
= ee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000000= 0
f00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00= 000000
f20: 00000000 00000000 00000000 00000000 00000000 00000000 000000= 00 00000000
f40: 00000000 00000000 00000000 00000000 00000000 00000000 0= 0000000 00000000
f60: 00000000 00000000 00000000 00000000 00000000 00000= 000 00000000 00000000
f80: 00000000 00000000 00000000 00000000 00000000 = 00000000 00000000 00000000
fa0: 00000000 00000000 00000000 00000000 0000= 0000 00000000 00000000 00000000
fc0: 00000000 00000000 00000000 00000000= 00000000 00000000 00000000 00000000
fe0: 00000000 00000000 00000000 000= 00000 00000000 00000000 00000000 00000000
xfs_db> type attr
xfs_db= > p
hdr.info.forw =3D 0
hdr.info.back =3D 0
hdr.info.magic =3D = 0xfbee
hdr.count =3D 0
hdr.usedbytes =3D 0
hdr.firstused =3D 4096<= br>hdr.holes =3D 0
hdr.freemap[0-2] =3D [base,size] 0:[32,4064] 1:[0,0] = 2:[0,0]


After converting the address to inode and running xfs_d= ump I get following output:

xfs_db> convert daddr 0x19a4775b18 in= ode
0x3348eeb960 (220266936672)
xfs_db> inode 0x3348eeb960
xfs_= db> p
core.magic =3D 0
core.mode =3D 0
core.version =3D 0
co= re.format =3D 0 (dev)
core.uid =3D 4226678784
core.gid =3D 0
core.= flushiter =3D 0
core.atime.sec =3D Thu Jan=C2=A0 1 01:00:00 1970
core= .atime.nsec =3D 000000000
core.mtime.sec =3D Thu Jan=C2=A0 1 01:00:00 19= 70
core.mtime.nsec =3D 000000000
core.ctime.sec =3D Thu Jan=C2=A0 1 0= 1:00:00 1970
core.ctime.nsec =3D 000000000
core.size =3D 0
core.nb= locks =3D 0
core.extsize =3D 0
core.nextents =3D 0
core.naextents = =3D 0
core.forkoff =3D 0
core.aformat =3D 0 (dev)
core.dmevmask = =3D 0
core.dmstate =3D 0
core.newrtbm =3D 0
core.prealloc =3D 0core.realtime =3D 0
core.immutable =3D 0
core.append =3D 0
core.s= ync =3D 0
core.noatime =3D 0
core.nodump =3D 0
core.rtinherit =3D = 0
core.projinherit =3D 0
core.nosymlinks =3D 0
core.extsz =3D 0core.extszinherit =3D 0
core.nodefrag =3D 0
core.filestream =3D 0core.gen =3D 0
next_unlinked =3D 0
u.dev =3D 0

It's stra= nge, because there is no "extended attributes" record.

Do = you know what can cause such problem ?
Is it fixed in new kernel version= ?

Thank you in advance !
Best regards

Adam Blaszczykowski=
--001a11429f34ca518e0524e46328-- From bfoster@redhat.com Thu Nov 19 07:27:29 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 15F8029DF5 for ; Thu, 19 Nov 2015 07:27:29 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id D69028F8050 for ; Thu, 19 Nov 2015 05:27:28 -0800 (PST) X-ASG-Debug-ID: 1447939643-04bdf07f0a11f240001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 4J6O7h3WRiVZdEvG (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 19 Nov 2015 05:27:24 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id D3A8C6566D for ; Thu, 19 Nov 2015 13:27:23 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAJDRNX5022930; Thu, 19 Nov 2015 08:27:23 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 81045122406; Thu, 19 Nov 2015 08:27:22 -0500 (EST) Date: Thu, 19 Nov 2015 08:27:22 -0500 From: Brian Foster To: Carlos Maiolino Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/2] xfs_io: implement 'inode' command V4 Message-ID: <20151119132722.GA13055@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/2] xfs_io: implement 'inode' command V4 References: <1447663404-7857-1-git-send-email-cmaiolino@redhat.com> <1447663404-7857-2-git-send-email-cmaiolino@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447663404-7857-2-git-send-email-cmaiolino@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447939644 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 16, 2015 at 09:43:23AM +0100, Carlos Maiolino wrote: > Implements a new xfs_io command, named 'inode', which is supposed to be used to > query information about inode's existence and its physical size in the > filesystem. > > Currently supporting three arguments: > -s -- return physical size of the largest inode > -l -- return the largest inode number allocated and used > -n [num] -- Return the next existing inode after [num], even if [num] is not > allocated/used > [num] -- Return if the inode exists or not. > > I didn't send the man page patch because I'm sure I'll get some points to > improve, and I'll write the manpage for the next revision. > > - Changelog > > V3: > - Merge all 3 patches from the V2 together in a single patch > - Rework of '-n [num]' and 'num' only arguments algorithm > - Argument -n now relies on bulkreq.count to check for next inodes, not > on bstat.bs_ino anymore. > - for loop in ret_lsize or ret_largest case, now relies on count being 0 > to break the loop > > V4: > - Refactor inode_f function to reduce its size and easier logic > - Implement error handlers for invalid command combination (hopefully > all invalid combinations). > - use a single xfs_inogrp array for keep track of inodes > - Fix missing newline in inode_help() > - Rewrite help message in inode_help() > - Fix indentation > > Signed-off-by: Carlos Maiolino > --- Well, the code looks Ok to me but the design still seems overdone IMO. I have no major objection if this goes in as is (with one exception noted below), but IMO we should take the approach somewhat discussed in the v3 review. In particular, define an actual default behavior for the command to return the largest inode number (or return 1/0 for "ability to mount w/ inode32" as Dave suggested). For example, kill both of the -l and -s flags and just return 1/0 by default. Define a single verbose (-v) flag to print the combined inode number and size. This mode can be implemented as the body of the inode_f() function. If -n is specified, basically do what the current version does. Just my .02. > io/open.c | 151 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 151 insertions(+) > > diff --git a/io/open.c b/io/open.c > index ac5a5e0..2fc8aab 100644 > --- a/io/open.c > +++ b/io/open.c ... > + if (ret_lsize || ret_largest) { > + > + bulkreq.lastip = &last; > + bulkreq.icount = 1024; /* User-defined maybe!? */ > + bulkreq.ubuffer = &igroup; > + bulkreq.ocount = &count; > + > + for (;;) { > + > + if (xfsctl(file->name, file->fd, XFS_IOC_FSINUMBERS, > + &bulkreq)) { > + perror("XFS_IOC_FSINUMBERS"); > + exitcode = 1; > + return 0; > + } > + > + if (count == 0) > + break; > + > + lastgrp = count; > + } > + > + lastgrp--; > + igrp_rec = igroup[lastgrp]; IIRC the point of igrp_rec was to save off the last record so it could be used directly after the loop without need for the count (because it could be 0). Here we use a separate lastgrp count to protect against the 0 case, yet still do the record copy after the loop... what's the point of that? Brian > + lastino = igrp_rec.xi_startino + > + xfs_highbit64(igrp_rec.xi_allocmask); > + > + if (ret_lsize) > + printf (_("Largest inode size: %d\n"), > + lastino > XFS_MAXINUMBER_32 ? 64 : 32); > + else > + printf(_("Largest inode: %llu\n"), lastino); > + > + return 0; > + } > + > + return command_usage(&inode_cmd); > +} > + > void > open_init(void) > { > @@ -815,6 +955,16 @@ open_init(void) > _("get/set preferred extent size (in bytes) for the open file"); > extsize_cmd.help = extsize_help; > > + inode_cmd.name = "inode"; > + inode_cmd.cfunc = inode_f; > + inode_cmd.args = _("[-s | -l | -n] [num]"); > + inode_cmd.argmin = 1; > + inode_cmd.argmax = 2; > + inode_cmd.flags = CMD_NOMAP_OK; > + inode_cmd.oneline = > + _("Query inode number usage in the filesystem"); > + inode_cmd.help = inode_help; > + > add_command(&open_cmd); > add_command(&stat_cmd); > add_command(&close_cmd); > @@ -822,4 +972,5 @@ open_init(void) > add_command(&chproj_cmd); > add_command(&lsproj_cmd); > add_command(&extsize_cmd); > + add_command(&inode_cmd); > } > -- > 2.4.3 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From jack@suse.cz Thu Nov 19 09:30:14 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 582EE29DF5 for ; Thu, 19 Nov 2015 09:30:14 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 377C0304032 for ; Thu, 19 Nov 2015 07:30:11 -0800 (PST) X-ASG-Debug-ID: 1447947008-04cb6c0cd3103450001-NocioJ Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id 3FK6CUoA0Ybq1Oz4 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 19 Nov 2015 07:30:09 -0800 (PST) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 2689AABE5; Thu, 19 Nov 2015 15:29:43 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 950C782827; Thu, 19 Nov 2015 16:30:04 +0100 (CET) Date: Thu, 19 Nov 2015 16:30:04 +0100 From: Jan Kara To: Avi Kivity Cc: Jeff Moyer , xfs@oss.sgi.com, linux-aio@kvack.org, Steven Whitehouse , Jan Kara , linux-fsdevel@vger.kernel.org Subject: Re: AIO read returns negative number for bytes read Message-ID: <20151119153004.GB25804@quack.suse.cz> X-ASG-Orig-Subj: Re: AIO read returns negative number for bytes read References: <564883BD.8070607@scylladb.com> <564B2303.7000902@scylladb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <564B2303.7000902@scylladb.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mx2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1447947009 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-ASG-Whitelist: Body =?UTF-8?B?aHR0cDovL21hcmNcLmluZm8vXD8=?= X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue 17-11-15 14:52:19, Avi Kivity wrote: > > > On 11/16/2015 09:27 PM, Jeff Moyer wrote: > >Hi Avi, > > > >Avi Kivity writes: > > > >>Due to a bug in my program, I initiated a read beyond > >>eof. Specifically, the file size is 13002 bytes and the read offset is > >>13312 (0x3400). > >> > >>I would expect such a read to return 0 bytes read, but io_getevents > >>returns -310, which is suspiciously equal to (13002 - 13312). > >> > >>I attach a reproducer. > >> > >>4.2.5-201.fc22.x86_64 > >> > >>Are my expectations incorrect, or is this a bug in aio or xfs? > >Your expectations are correct. The bug was introduced by commit > >9fe55eea7e4b4 (Fix race when checking i_size on direct i/o read). I've > >CC'd the patch author and linux-fsdevel. I'm not sure what the right > >fix is, given that the size checks were removed from the vfs to fix some > >race condition. Unfortunately, the commit message doesn't really do a > >good job of explaining the race. In order to save others time, here is > >a good explanation of the problem that commit is meant to fix, along > >with a reproducer: > > http://marc.info/?l=linux-fsdevel&m=138641356614458&w=2 > > > >Thanks for the great bug report, and sorry I have no solution to > >proffer. > > > > Thanks. I will await a fix with interest. Can you please post the reproduce here as well? I couldn't easily find it with google. Honza -- Jan Kara SUSE Labs, CR From avi@cloudius-systems.com Thu Nov 19 09:33:03 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A565F29DF5 for ; Thu, 19 Nov 2015 09:33:03 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 80855304032 for ; Thu, 19 Nov 2015 07:33:03 -0800 (PST) X-ASG-Debug-ID: 1447947181-04cb6c0cd11035e0001-NocioJ Received: from mail-wm0-f48.google.com (mail-wm0-f48.google.com [74.125.82.48]) by cuda.sgi.com with ESMTP id hLg0XEYEgZx5C56w (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 19 Nov 2015 07:33:02 -0800 (PST) X-Barracuda-Envelope-From: avi@cloudius-systems.com X-Barracuda-Apparent-Source-IP: 74.125.82.48 Received: by wmec201 with SMTP id c201so122982968wme.1 for ; Thu, 19 Nov 2015 07:33:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=scylladb-com.20150623.gappssmtp.com; s=20150623; h=subject:to:references:cc:from:message-id:date:user-agent :mime-version:in-reply-to:content-type; bh=JGnywJthk26vODPOMcL+0YQlde0Z56vD4kqTJRM2lYs=; b=epqEWjHxhSwlQZ82JpfSBObYBLGzpn04QOPwdCWNU6GzmDbFOwRiEqpseUXS2Fqy0W MZlZJQ71S4uEYJZep9IqC5tH1ZJzS/c+p03b+/sDHVo1ysmoq8JBGC5KCs5LYUxX77Mp yG1SGvHpuFW5O9y3e2scDkoYOWORjjZkhmlWizaMAe3Yv1IlpKPQWIolh9UIxsNiHFAH W9hu7yx9clfVPY3rYllYdQ8Lv3Bon7ArvnojXXdFDwUXRCTenbuwCCEljLYAG7G7K+QH p38Gz2cu7jmEs3/TgHxUjwCZHqpvx9w3uCEEGkN0QuO12svcy0NuDRo+WrZOPsOy3lFm 0m2Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-type; bh=JGnywJthk26vODPOMcL+0YQlde0Z56vD4kqTJRM2lYs=; b=S+jCA+w1pII01hq8/CZMnTgpq/KAq9a9WESWbBrB2udIDCVj+OzurWzkWhJdo2rktI 5bytUFigAmAlvRVgis3ptI7xegzK3Njn6u353lIR4eDT6BRaYhI1NjUyFGe3jfpF1Tk6 ADOS5XLjgAeHXPWzq2T9vSshlp+tcXFtUKEptewHSkzewsgP98d+JVvLMrSfMyofiXSJ YZuv4flTl8DXP0HFU7x6CReKuY4dgnrzs97A1+JpW0o9CHQA8tBJSjjtDH4CbkRrLRPP U2BdSzBi38gSNiMRYWZiZWTyf8x/opIgQKlJ4/UcjdBt1/Pj5rPqLGaFjco3OQHeY0QC +xOg== X-Gm-Message-State: ALoCoQkYLNpDP/s49BrV4trQHYKEG94uKsdlEZaj+o1si6zhv1yp2Uwu+6zPwkPt/TUE3PhzA+y7 X-Received: by 10.194.77.51 with SMTP id p19mr8815943wjw.159.1447947181016; Thu, 19 Nov 2015 07:33:01 -0800 (PST) Received: from avi.cloudius-systems.com ([37.142.229.250]) by smtp.googlemail.com with ESMTPSA id z13sm8345942wjr.47.2015.11.19.07.32.59 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 19 Nov 2015 07:32:59 -0800 (PST) Subject: Re: AIO read returns negative number for bytes read To: Jan Kara X-ASG-Orig-Subj: Re: AIO read returns negative number for bytes read References: <564883BD.8070607@scylladb.com> <564B2303.7000902@scylladb.com> <20151119153004.GB25804@quack.suse.cz> Cc: Jeff Moyer , xfs@oss.sgi.com, linux-aio@kvack.org, Steven Whitehouse , linux-fsdevel@vger.kernel.org From: Avi Kivity Message-ID: <564DEBAA.1080700@scylladb.com> Date: Thu, 19 Nov 2015 17:32:58 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151119153004.GB25804@quack.suse.cz> Content-Type: multipart/mixed; boundary="------------020709070705040807030305" X-Barracuda-Connect: mail-wm0-f48.google.com[74.125.82.48] X-Barracuda-Start-Time: 1447947181 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-ASG-Whitelist: Body =?UTF-8?B?aHR0cDovL21hcmNcLmluZm8vXD8=?= X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 This is a multi-part message in MIME format. --------------020709070705040807030305 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit On 11/19/2015 05:30 PM, Jan Kara wrote: > On Tue 17-11-15 14:52:19, Avi Kivity wrote: >> >> On 11/16/2015 09:27 PM, Jeff Moyer wrote: >>> Hi Avi, >>> >>> Avi Kivity writes: >>> >>>> Due to a bug in my program, I initiated a read beyond >>>> eof. Specifically, the file size is 13002 bytes and the read offset is >>>> 13312 (0x3400). >>>> >>>> I would expect such a read to return 0 bytes read, but io_getevents >>>> returns -310, which is suspiciously equal to (13002 - 13312). >>>> >>>> I attach a reproducer. >>>> >>>> 4.2.5-201.fc22.x86_64 >>>> >>>> Are my expectations incorrect, or is this a bug in aio or xfs? >>> Your expectations are correct. The bug was introduced by commit >>> 9fe55eea7e4b4 (Fix race when checking i_size on direct i/o read). I've >>> CC'd the patch author and linux-fsdevel. I'm not sure what the right >>> fix is, given that the size checks were removed from the vfs to fix some >>> race condition. Unfortunately, the commit message doesn't really do a >>> good job of explaining the race. In order to save others time, here is >>> a good explanation of the problem that commit is meant to fix, along >>> with a reproducer: >>> http://marc.info/?l=linux-fsdevel&m=138641356614458&w=2 >>> >>> Thanks for the great bug report, and sorry I have no solution to >>> proffer. >>> >> Thanks. I will await a fix with interest. > Can you please post the reproduce here as well? I couldn't easily find it > with google. > > Attached. I am told that a simple synchronous O_DIRECT read beyond unaligned eof suffices as well. --------------020709070705040807030305 Content-Type: text/plain; charset=UTF-8; name="aio_read_fails.c" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="aio_read_fails.c" #define _GNU_SOURCE #include #include #include #include #include #include #include #include int main(int ac, char** av) { int fd; char* buf; io_context_t ioc = NULL; int r; struct iocb iocb; struct iocb *iocbp[1]; struct io_event ioev; buf = aligned_alloc(4096, 4096*4); assert(buf); r = io_setup(1, &ioc); assert(r == 0); fd = open("tmp.tmp", O_RDWR | O_CREAT | O_DIRECT, 0600); assert(fd >= 0); io_prep_pwrite(&iocb, fd, buf, 4096*4, 0); iocbp[0] = &iocb; r = io_submit(ioc, 1, iocbp); assert(r == 1); r = io_getevents(ioc, 1, 1, &ioev, NULL); assert(r == 1); assert(ioev.res == 4*4096); ftruncate(fd, 13002); io_prep_pread(&iocb, fd, buf, 8192, 13312); r = io_submit(ioc, 1, iocbp); assert(r == 1); r = io_getevents(ioc, 1, 1, &ioev, NULL); assert(r == 1); printf("read result: %d\n", (int)ioev.res); return 0; } --------------020709070705040807030305-- From jmoyer@redhat.com Thu Nov 19 09:33:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9923629DFE for ; Thu, 19 Nov 2015 09:33:09 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7997D8F8059 for ; Thu, 19 Nov 2015 07:33:06 -0800 (PST) X-ASG-Debug-ID: 1447947184-04cbb0605d149a10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ca9YxWQRUoXANngj (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 19 Nov 2015 07:33:05 -0800 (PST) X-Barracuda-Envelope-From: jmoyer@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id B7D9691C16; Thu, 19 Nov 2015 15:33:04 +0000 (UTC) Received: from segfault.boston.devel.redhat.com (segfault.boston.devel.redhat.com [10.19.60.26]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAJFX3I1002852 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 19 Nov 2015 10:33:04 -0500 From: Jeff Moyer To: Jan Kara Cc: Avi Kivity , xfs@oss.sgi.com, linux-aio@kvack.org, Steven Whitehouse , linux-fsdevel@vger.kernel.org Subject: Re: AIO read returns negative number for bytes read References: <564883BD.8070607@scylladb.com> <564B2303.7000902@scylladb.com> <20151119153004.GB25804@quack.suse.cz> X-ASG-Orig-Subj: Re: AIO read returns negative number for bytes read X-PGP-KeyID: 1F78E1B4 X-PGP-CertKey: F6FE 280D 8293 F72C 65FD 5A58 1FF8 A7CA 1F78 E1B4 X-PCLoadLetter: What the f**k does that mean? Date: Thu, 19 Nov 2015 10:33:03 -0500 In-Reply-To: <20151119153004.GB25804@quack.suse.cz> (Jan Kara's message of "Thu, 19 Nov 2015 16:30:04 +0100") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447947185 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Jan Kara writes: > Can you please post the reproduce here as well? I couldn't easily find it > with google. Here it is, Jan. -Jeff #define _GNU_SOURCE #include #include #include #include #include #include #include #include int main(int ac, char** av) { int fd; char* buf; io_context_t ioc = NULL; int r; struct iocb iocb; struct iocb *iocbp[1]; struct io_event ioev; buf = aligned_alloc(4096, 4096*4); assert(buf); r = io_setup(1, &ioc); assert(r == 0); fd = open("tmp.tmp", O_RDWR | O_CREAT | O_DIRECT, 0600); assert(fd >= 0); io_prep_pwrite(&iocb, fd, buf, 4096*4, 0); iocbp[0] = &iocb; r = io_submit(ioc, 1, iocbp); assert(r == 1); r = io_getevents(ioc, 1, 1, &ioev, NULL); assert(r == 1); assert(ioev.res == 4*4096); ftruncate(fd, 13002); io_prep_pread(&iocb, fd, buf, 8192, 13312); r = io_submit(ioc, 1, iocbp); assert(r == 1); r = io_getevents(ioc, 1, 1, &ioev, NULL); assert(r == 1); printf("read result: %d\n", (int)ioev.res); return 0; } From bfoster@redhat.com Thu Nov 19 09:55:29 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 18D1429DF5 for ; Thu, 19 Nov 2015 09:55:29 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 079CC8F8059 for ; Thu, 19 Nov 2015 07:55:28 -0800 (PST) X-ASG-Debug-ID: 1447948527-04cb6c0cd2104770001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id MpKlDvtMFUDPospc (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 19 Nov 2015 07:55:27 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id ED8177D; Thu, 19 Nov 2015 15:55:26 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAJFtQat002837; Thu, 19 Nov 2015 10:55:26 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 8EA60122406; Thu, 19 Nov 2015 10:55:25 -0500 (EST) Date: Thu, 19 Nov 2015 10:55:25 -0500 From: Brian Foster To: Octavian Purdila Cc: xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151119155525.GB13055@bfoster.bfoster> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1447948527 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > Naive implementation for non-mmu architectures: allocate physically > contiguous xfs buffers with alloc_pages. Terribly inefficient with > memory and fragmentation on high I/O loads but it may be good enough > for basic usage (which most non-mmu architectures will need). > > This patch was tested with lklfuse [1] and basic operations seems to > work even with 16MB allocated for LKL. > > [1] https://github.com/lkl/linux > > Signed-off-by: Octavian Purdila > --- Interesting, though this makes me wonder why we couldn't have a new _XBF_VMEM (for example) buffer type that uses vmalloc(). I'm not familiar with mmu-less context, but I see that mm/nommu.c has a __vmalloc() interface that looks like it ultimately translates into an alloc_pages() call. Would that accomplish what this patch is currently trying to do? I ask because it seems like that would help clean up the code a bit, for one. It might also facilitate some degree of testing of the XFS bits (even if utilized sparingly in DEBUG mode if it weren't suitable enough for generic/mmu use). We currently allocate and map the buffer pages separately and I'm not sure if there's any particular reasons for doing that outside of some congestion handling in the allocation code and XBF_UNMAPPED buffers, the latter probably being irrelevant for nommu. Any other thoughts on that? > fs/xfs/xfs_buf.c | 27 +++++++++++++++++++++++++++ > 1 file changed, 27 insertions(+) > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > index 8ecffb3..50b5246 100644 > --- a/fs/xfs/xfs_buf.c > +++ b/fs/xfs/xfs_buf.c ... > @@ -816,11 +835,19 @@ xfs_buf_get_uncached( > if (error) > goto fail_free_buf; > > +#ifdef CONFIG_MMU > for (i = 0; i < page_count; i++) { > bp->b_pages[i] = alloc_page(xb_to_gfp(flags)); > if (!bp->b_pages[i]) > goto fail_free_mem; > } > +#else > + bp->b_pages[0] = alloc_pages(flags, order_base_2(page_count)); > + if (!bp->b_pages[0]) > + goto fail_free_buf; > + for (i = 1; i < page_count; i++) > + bp->b_pages[i] = bp->b_pages[i-1] + 1; > +#endif We still have a path into __free_page() further down in this function if _xfs_buf_map_pages() fails. Granted, _xfs_buf_map_pages() should probably never fail in this case, but it still looks like a land mine at the very least. Brian > bp->b_flags |= _XBF_PAGES; > > error = _xfs_buf_map_pages(bp, 0); > -- > 1.9.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From penguin-kernel@I-love.SAKURA.ne.jp Thu Nov 19 10:00:19 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4226129DF5 for ; Thu, 19 Nov 2015 10:00:19 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id A958DAC005 for ; Thu, 19 Nov 2015 08:00:15 -0800 (PST) X-ASG-Debug-ID: 1447948806-04cb6c0cd4104950001-NocioJ Received: from www262.sakura.ne.jp (www262.sakura.ne.jp [202.181.97.72]) by cuda.sgi.com with ESMTP id CGi0pzAf3BdrdMos (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO) for ; Thu, 19 Nov 2015 08:00:08 -0800 (PST) X-Barracuda-Envelope-From: penguin-kernel@I-love.SAKURA.ne.jp X-Barracuda-Apparent-Source-IP: 202.181.97.72 Received: from fsav101.sakura.ne.jp (fsav101.sakura.ne.jp [27.133.134.228]) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id tAJFxcvY044560; Fri, 20 Nov 2015 00:59:38 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav101.sakura.ne.jp (F-Secure/fsigk_smtp/522/fsav101.sakura.ne.jp); Fri, 20 Nov 2015 00:59:38 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/522/fsav101.sakura.ne.jp) Received: from AQUA (softbank126072091035.bbtec.net [126.72.91.35]) (authenticated bits=0) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id tAJFxcmg044557; Fri, 20 Nov 2015 00:59:38 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) To: arekm@maven.pl, mhocko@suse.cz Cc: htejun@gmail.com, cl@linux.com, linux-mm@kvack.org, xfs@oss.sgi.com Subject: Re: memory reclaim problems on fs usage From: Tetsuo Handa X-ASG-Orig-Subj: Re: memory reclaim problems on fs usage References: <201511102313.36685.arekm@maven.pl> <201511151549.35299.arekm@maven.pl> <20151116161518.GI14116@dhcp22.suse.cz> <201511182336.18231.arekm@maven.pl> In-Reply-To: <201511182336.18231.arekm@maven.pl> Message-Id: <201511200059.CFI00514.OLFJtMFFHSOOQV@I-love.SAKURA.ne.jp> X-Mailer: Winbiff [Version 2.51 PL2] X-Accept-Language: ja,en,zh Date: Fri, 20 Nov 2015 00:59:38 +0900 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Barracuda-Connect: www262.sakura.ne.jp[202.181.97.72] X-Barracuda-Start-Time: 1447948807 X-Barracuda-Encrypted: DHE-RSA-CAMELLIA256-SHA X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24538 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Arkadiusz Miskiewicz wrote: > Ok. In mean time I've tried 4.3.0 kernel + patches (the same as before + one > more) on second server which runs even more rsnapshot processes and also uses > xfs on md raid 6. > > Patches: > http://sprunge.us/DfIQ (debug patch from Tetsuo) > http://sprunge.us/LQPF (backport of things from git + one from ml) > > The problem is now with high order allocations probably: > http://ixion.pld-linux.org/~arekm/log-mm-2srv-1.txt.gz This seems to be stall upon allocating transparent huge pages. (page fault -> try to allocate 2MB page -> reclaim -> waiting) ---------- [ 1166.110205] Node 0 Normal: 4801*4kB (UE) 1461*8kB (UMEC) 290*16kB (UMEC) 715*32kB (UM) 67*64kB (UME) 7*128kB (UMEC) 3*256kB (MEC) 6*512kB (UMEC) 3*1024kB (MEC) 10*2048kB (UME) 219*4096kB (M) = 988012kB [ 1178.250751] Node 0 Normal: 4917*4kB (UME) 2622*8kB (UMEC) 530*16kB (UMC) 713*32kB (UME) 68*64kB (UM) 8*128kB (UMC) 5*256kB (MEC) 5*512kB (UMC) 8*1024kB (MEC) 4*2048kB (UME) 207*4096kB (M) = 945412kB [ 1190.108587] Node 0 Normal: 4301*4kB (UME) 3132*8kB (UMEC) 670*16kB (UMEC) 766*32kB (UME) 74*64kB (UME) 11*128kB (UMC) 8*256kB (UMEC) 4*512kB (UMEC) 3*1024kB (MEC) 2*2048kB (UM) 206*4096kB (M) = 938676kB [ 1202.014434] Node 0 Normal: 3971*4kB (UM) 2704*8kB (UMC) 650*16kB (UMEC) 754*32kB (UE) 68*64kB (UME) 6*128kB (UMC) 3*256kB (UEC) 3*512kB (UEC) 6*1024kB (MEC) 5*2048kB (UM) 206*4096kB (M) = 939628kB [ 1212.438969] Node 0 Normal: 5307*4kB (UE) 4976*8kB (UEC) 1095*16kB (UC) 702*32kB (UM) 67*64kB (UM) 6*128kB (UMC) 2*256kB (UC) 37*512kB (UMC) 36*1024kB (MC) 29*2048kB (UME) 324*4096kB (M) = 1548892kB [ 1222.840549] Node 0 Normal: 0*4kB 5*8kB (UMEC) 711*16kB (UC) 490*32kB (UME) 66*64kB (U) 6*128kB (UEC) 3*256kB (UMC) 3*512kB (UEC) 2*1024kB (MC) 1*2048kB (U) 303*4096kB (M) = 1279576kB [ 1243.941537] Node 0 Normal: 28825*4kB (UE) 26405*8kB (UMEC) 12409*16kB (UMC) 3351*32kB (UME) 408*64kB (UM) 19*128kB (UMC) 3*256kB (UC) 4*512kB (UMC) 2*1024kB (UC) 3*2048kB (UME) 65*4096kB (M) = 938108kB [ 1256.006097] Node 0 Normal: 40219*4kB (UME) 34873*8kB (UE) 17232*16kB (UME) 5633*32kB (UME) 598*64kB (UM) 1*128kB (M) 0*256kB 2*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 935252kB [ 1268.951714] Node 0 Normal: 36607*4kB (UME) 37875*8kB (UME) 17450*16kB (UME) 5497*32kB (UME) 485*64kB (U) 0*128kB 0*256kB 1*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 936084kB [ 1279.263718] Node 0 Normal: 39565*4kB (UME) 39229*8kB (UME) 17553*16kB (UME) 5174*32kB (UME) 279*64kB (UM) 2*128kB (ME) 4*256kB (ME) 3*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 939180kB [ 1300.454484] Node 0 Normal: 37945*4kB (U) 52089*8kB (U) 24197*16kB (UE) 7420*32kB (UME) 493*64kB (UM) 10*128kB (UME) 1*256kB (M) 1*512kB (E) 2*1024kB (ME) 1*2048kB (E) 39*4096kB (M) = 1390524kB [ 1310.761624] Node 0 Normal: 18034*4kB (U) 44842*8kB (UE) 19948*16kB (UE) 5383*32kB (UME) 162*64kB (UME) 2*128kB (ME) 3*256kB (ME) 5*512kB (ME) 1*1024kB (M) 0*2048kB 0*4096kB = 937272kB [ 1320.848763] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=4574 [ 1321.988480] Node 0 Normal: 19294*4kB (UME) 45490*8kB (UE) 20125*16kB (UME) 5229*32kB (UM) 93*64kB (UM) 4*128kB (M) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 936888kB [ 1342.042799] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=10944 [ 1352.791917] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=14172 [ 1364.143762] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=17581 [ 1374.499973] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=20691 [ 1384.842838] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=23797 [ 1395.192348] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=26905 [ 1405.525243] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=30008 [ 1415.831459] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=33103 [ 1427.113385] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=36491 [ 1437.416290] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=39585 [ 1437.428716] MemAlloc: rsnapshot(3639) gfp=0x4f52ca order=9 delay=3389 (...snipped...) [30084.882928] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=3654551 [30085.744771] Node 0 Normal: 212267*4kB (UME) 10914*8kB (UE) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 936380kB [30084.889563] MemAlloc: syslog-ng(1671) gfp=0x4f52ca order=9 delay=324074 [30106.734724] MemAlloc: cp(2795) gfp=0x4f52ca order=9 delay=3698251 [30106.747497] MemAlloc: syslog-ng(1671) gfp=0x4f52ca order=9 delay=330638 [30117.713596] MemAlloc: cp(2795) gfp=0x4f52ca order=9 delay=3701548 [30117.719721] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=3664412 [30117.726356] MemAlloc: syslog-ng(1671) gfp=0x4f52ca order=9 delay=333935 [30139.904472] MemAlloc: cp(2795) gfp=0x4f52ca order=9 delay=3708212 [30139.910594] MemAlloc: khugepaged(32) gfp=0xcf52ca order=9 delay=3671076 [30139.917237] MemAlloc: syslog-ng(1671) gfp=0x4f52ca order=9 delay=340599 [30172.684553] MemAlloc: cp(2795) gfp=0x4f52ca order=9 delay=3718056 [30173.749694] Node 0 Normal: 234069*4kB (UE) 148*8kB (UE) 113*16kB (UE) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 939268kB ---------- So many 4kB pages but no 2048kB pages. > System is doing very slow progress and for example depmod run took 2 hours > http://sprunge.us/HGbE > Sometimes I was able to ssh-in, dmesg took 10-15 minutes but sometimes it > worked fast for short period. > > Ideas? Memory fragmentation is out of my understanding. Maybe disabling THP can help. > > ps. I also had one problem with low order allocation but only once and wasn't > able to reproduce so far. I was running kernel with backport patches but no > debug patch, so got only this in logs: > http://sprunge.us/WPXi Unfortunately 16kB pages was not available at that moment. But it was GFP_ATOMIC and infrequent failure should not become a problem. ---------- [ 8513.740326] swapper/3: page allocation failure: order:2, mode:0xc020 (...snipped...) [ 8514.247719] Node 0 Normal: 207920*4kB (UE) 18052*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 976096kB ---------- From octavian.purdila@intel.com Thu Nov 19 14:54:41 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 64CC829DF5 for ; Thu, 19 Nov 2015 14:54:41 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 41F9E8F8049 for ; Thu, 19 Nov 2015 12:54:38 -0800 (PST) X-ASG-Debug-ID: 1447966474-04bdf07f08154490001-NocioJ Received: from mail-wm0-f53.google.com (mail-wm0-f53.google.com [74.125.82.53]) by cuda.sgi.com with ESMTP id nWqxpG8XL6ITYaXF (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 19 Nov 2015 12:54:35 -0800 (PST) X-Barracuda-Envelope-From: octavian.purdila@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.53 Received: by wmdw130 with SMTP id w130so256429437wmd.0 for ; Thu, 19 Nov 2015 12:54:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=Z4dOcs3/h5xd+cnAVFLu31Px8AtTO0YvxF73HKS17DY=; b=Y28WlqKLRAfpEK+UgPj5DU+/Zl1F4+Z3rk07UZRWyiFx8abIAZNWs0rCFOHtSFDq3d N+Q7RIjjNBjeSsvagvUOgv2a/UgbtWsKO2F86B9TlL67pCOmaooveXdHzG+EtjUFyEkw Vt4xWCph5E4+Sg8qKJ3XNe4EK0Tj5m9QxIDYX1ZGz5hVOdTmBIDmqoNdCUO4+cHC1Bjw rIrKOeVCeb4gO1wbL7Y1CMkFmvC4FnOQF1T2D9nM6cDdYaIx8Rhx3zAQMf/hIudhho7D /yNgGLRNhNE/6v7uAHaNazdA/F/RHetU+8nCWslEBay2en4D7r8LvSh7kbz1DJRgI6zt IO3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=Z4dOcs3/h5xd+cnAVFLu31Px8AtTO0YvxF73HKS17DY=; b=FhgwmcR3M+FZyhMYcTY9iUauR/rC2Wu9kAB0PiU5zrGo3HDifJzIdjyiBTRJpu4X4R awGwDLHLhomVaxNehimA1/Y3g7WV+/OhxbRfmw6NHtuaIkQV/mzo94nQbB7djxfr5GBa CAzXEgW7K+Mt5pAIe7czkyallALzwNIJq0m8S+X3n20tnRF2gPIZhJNCzJKQ2xjuSYnP Fk7ymAc6FwIqJDa73ZMfY7ReInYGlz5cGQdU3o8vowv2LmhiZ9U5bGnCl9u1a88YF8iL XkgJx9pExeW0rYXbEpPy6rZHlMUrwneEPoHdOWkHorLzcpMidFg0F5L1VED3SYMEdtwR otrQ== X-Gm-Message-State: ALoCoQlwiqJ0jQuqhRjRfmgG/QEGzoMny/irlIKCIy3oh4fyKU9uXCaqZO7WPd3Xndo8R79DyGaO MIME-Version: 1.0 X-Received: by 10.28.188.67 with SMTP id m64mr17729032wmf.60.1447966474229; Thu, 19 Nov 2015 12:54:34 -0800 (PST) Received: by 10.194.106.131 with HTTP; Thu, 19 Nov 2015 12:54:34 -0800 (PST) In-Reply-To: <20151119155525.GB13055@bfoster.bfoster> References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119155525.GB13055@bfoster.bfoster> Date: Thu, 19 Nov 2015 22:54:34 +0200 Message-ID: Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures From: Octavian Purdila X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures To: Brian Foster Cc: xfs@oss.sgi.com, linux-fsdevel , lkml Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f53.google.com[74.125.82.53] X-Barracuda-Start-Time: 1447966475 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24545 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Thu, Nov 19, 2015 at 5:55 PM, Brian Foster wrote: > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: >> Naive implementation for non-mmu architectures: allocate physically >> contiguous xfs buffers with alloc_pages. Terribly inefficient with >> memory and fragmentation on high I/O loads but it may be good enough >> for basic usage (which most non-mmu architectures will need). >> >> This patch was tested with lklfuse [1] and basic operations seems to >> work even with 16MB allocated for LKL. >> >> [1] https://github.com/lkl/linux >> >> Signed-off-by: Octavian Purdila >> --- > > Interesting, though this makes me wonder why we couldn't have a new > _XBF_VMEM (for example) buffer type that uses vmalloc(). I'm not > familiar with mmu-less context, but I see that mm/nommu.c has a > __vmalloc() interface that looks like it ultimately translates into an > alloc_pages() call. Would that accomplish what this patch is currently > trying to do? > Hi Brian, Ah, that sounds nice! We could get rid of the #ifdefs and use a common path in that case. vmalloc should work on non-mmu and it seems that there is a vmalloc_to_page() we can use to get the physical pages. I'll give it a try. Is there a central place where we could enable the new _XBF_VMEM to be the default for non-mmu arches? > I ask because it seems like that would help clean up the code a bit, for > one. It might also facilitate some degree of testing of the XFS bits > (even if utilized sparingly in DEBUG mode if it weren't suitable enough > for generic/mmu use). We currently allocate and map the buffer pages > separately and I'm not sure if there's any particular reasons for doing > that outside of some congestion handling in the allocation code and > XBF_UNMAPPED buffers, the latter probably being irrelevant for nommu. > Any other thoughts on that? > >> fs/xfs/xfs_buf.c | 27 +++++++++++++++++++++++++++ >> 1 file changed, 27 insertions(+) >> >> diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c >> index 8ecffb3..50b5246 100644 >> --- a/fs/xfs/xfs_buf.c >> +++ b/fs/xfs/xfs_buf.c > ... >> @@ -816,11 +835,19 @@ xfs_buf_get_uncached( >> if (error) >> goto fail_free_buf; >> >> +#ifdef CONFIG_MMU >> for (i = 0; i < page_count; i++) { >> bp->b_pages[i] = alloc_page(xb_to_gfp(flags)); >> if (!bp->b_pages[i]) >> goto fail_free_mem; >> } >> +#else >> + bp->b_pages[0] = alloc_pages(flags, order_base_2(page_count)); >> + if (!bp->b_pages[0]) >> + goto fail_free_buf; >> + for (i = 1; i < page_count; i++) >> + bp->b_pages[i] = bp->b_pages[i-1] + 1; >> +#endif > > We still have a path into __free_page() further down in this function if > _xfs_buf_map_pages() fails. Granted, _xfs_buf_map_pages() should > probably never fail in this case, but it still looks like a land mine at > the very least. > OK. Adding a i = 1; right before the #endif should take care of that, if the vmalloc approach does not work. From david@fromorbit.com Thu Nov 19 17:29:08 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C92F829DF5 for ; Thu, 19 Nov 2015 17:29:08 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id BAC0E304039 for ; Thu, 19 Nov 2015 15:29:05 -0800 (PST) X-ASG-Debug-ID: 1447975739-04cbb0605c175440001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id 97oVWISQAIqvuCRd for ; Thu, 19 Nov 2015 15:28:59 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CcCQBiWk5WPALtLHleKAECgxCBQoZdpRYBAQEBAQEGizmFLIJ9gRCGCQQCAoFMTQEBAQEBAQcBAQEBQAE/hDUBAQQ6HCMQCAMYCSUPBSUDBxoTiC3ANwEBCAIhGYV0hUWJOQEElkyNJoFjhECWLIR7KjSFIAEBAQ Received: from ppp121-44-237-2.lns20.syd7.internode.on.net (HELO dastard) ([121.44.237.2]) by ipmail06.adl6.internode.on.net with ESMTP; 20 Nov 2015 09:54:56 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZzYZT-0006aR-Tg; Fri, 20 Nov 2015 10:24:55 +1100 Date: Fri, 20 Nov 2015 10:24:55 +1100 From: Dave Chinner To: Octavian Purdila Cc: xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151119232455.GM14311@dastard> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1447975739 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24547 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > Naive implementation for non-mmu architectures: allocate physically > contiguous xfs buffers with alloc_pages. Terribly inefficient with > memory and fragmentation on high I/O loads but it may be good enough > for basic usage (which most non-mmu architectures will need). Can you please explain why you want to use XFS on low end, basic non-MMU devices? XFS is a high performance, enterprise/HPC level filesystem - it's not a filesystem designed for small IoT level devices - so I'm struggling to see why we'd want to expend any effort to make XFS work on such devices.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Nov 19 17:36:10 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 10C4929DF5 for ; Thu, 19 Nov 2015 17:36:10 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id D93B5304043 for ; Thu, 19 Nov 2015 15:36:09 -0800 (PST) X-ASG-Debug-ID: 1447976165-04bdf07f0815e270001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id LydvHM72i8Q2r2Zh for ; Thu, 19 Nov 2015 15:36:06 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2D1CABOW05WPALtLHleKAECgxBTb6tzAQEBAQEBBos5hSyEDR2FbAICAQECgU1NAQEBAQEBBwEBAQFAAT+ENAEBAQMBOhwjBQsIAw4KCSUPBSUDBxoTiCYHwC8BAQEBBgIBHAQZhXSFRYJxgUOFBQWWTIUjiAOcT4R7KjSDVoFKAQEB Received: from ppp121-44-237-2.lns20.syd7.internode.on.net (HELO dastard) ([121.44.237.2]) by ipmail06.adl6.internode.on.net with ESMTP; 20 Nov 2015 10:06:05 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZzYjz-0006bj-VR; Fri, 20 Nov 2015 10:35:47 +1100 Date: Fri, 20 Nov 2015 10:35:47 +1100 From: Dave Chinner To: Brian Foster Cc: Octavian Purdila , xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151119233547.GN14311@dastard> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119155525.GB13055@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151119155525.GB13055@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1447976165 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24548 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Nov 19, 2015 at 10:55:25AM -0500, Brian Foster wrote: > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > > Naive implementation for non-mmu architectures: allocate physically > > contiguous xfs buffers with alloc_pages. Terribly inefficient with > > memory and fragmentation on high I/O loads but it may be good enough > > for basic usage (which most non-mmu architectures will need). > > > > This patch was tested with lklfuse [1] and basic operations seems to > > work even with 16MB allocated for LKL. > > > > [1] https://github.com/lkl/linux > > > > Signed-off-by: Octavian Purdila > > --- > > Interesting, though this makes me wonder why we couldn't have a new > _XBF_VMEM (for example) buffer type that uses vmalloc(). I'm not > familiar with mmu-less context, but I see that mm/nommu.c has a > __vmalloc() interface that looks like it ultimately translates into an > alloc_pages() call. Would that accomplish what this patch is currently > trying to do? vmalloc is always a last resort. vmalloc space on 32 bit systems is extremely limited and it is easy to exhaust with XFS. Also, vmalloc limits the control we have over allocation context (e.g. the hoops we jump through in kmem_alloc_large() to maintain GFP_NOFS contexts), so just using vmalloc doesn't make things much simpler from an XFS perspective. > I ask because it seems like that would help clean up the code a bit, for > one. It might also facilitate some degree of testing of the XFS bits > (even if utilized sparingly in DEBUG mode if it weren't suitable enough > for generic/mmu use). We currently allocate and map the buffer pages > separately and I'm not sure if there's any particular reasons for doing > that outside of some congestion handling in the allocation code and > XBF_UNMAPPED buffers, the latter probably being irrelevant for nommu. > Any other thoughts on that? We could probably clean the code up more (the allocation logic is now largely a historic relic) but I'm not convinced yet that we should be spending any time trying to specifically support mmu-less hardware. Cheers, Dave. -- Dave Chinner david@fromorbit.com From richard.weinberger@gmail.com Thu Nov 19 17:54:05 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 94DE429DF5 for ; Thu, 19 Nov 2015 17:54:05 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5F0E3304032 for ; Thu, 19 Nov 2015 15:54:05 -0800 (PST) X-ASG-Debug-ID: 1447977242-04bdf07f0a15f300001-NocioJ Received: from mail-ob0-f173.google.com (mail-ob0-f173.google.com [209.85.214.173]) by cuda.sgi.com with ESMTP id 8Y9N2zxPCkZ5JCfP (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 19 Nov 2015 15:54:03 -0800 (PST) X-Barracuda-Envelope-From: richard.weinberger@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.214.173 Received: by obbbj7 with SMTP id bj7so73904919obb.1 for ; Thu, 19 Nov 2015 15:54:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=FJIfgWxCXQ7FjABDPma5jul6AFOndYGbAvev1KqT+1U=; b=AKGqdZRHp0/vq0zLH6nEplJMIMT9Sje7YqH0YTE/YH2GI9w4B2FrmG/R3qvKapKEDZ cVpOQRyiLsR1Sd3z2RklEC1RgUhsg9Tk5Ihm/nhedRy7k+0zt6c1T5Z/KfbBbBIbAFwZ jh++7cIKErBSYxFu5saOvcSOOXofX986fEV8vvNhgyo8rZSn/BxgJs4YBYdJrIl/btzP 8eaoNMhnsQlbF6I008eBjsurFf+q4XF+Ey+WFPrpoRBLEWVb1Q8VlJwc/S00YVOmbfzU 0nySdvCF/EN/Q8mALJiJ9FWb3tneB69rNKv4+zNocS1tBQRnVlNH+9JLrAVsiC/sC2K+ ljgw== MIME-Version: 1.0 X-Received: by 10.182.117.233 with SMTP id kh9mr6761838obb.44.1447977242557; Thu, 19 Nov 2015 15:54:02 -0800 (PST) Received: by 10.76.178.71 with HTTP; Thu, 19 Nov 2015 15:54:02 -0800 (PST) In-Reply-To: <20151119232455.GM14311@dastard> References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> Date: Fri, 20 Nov 2015 00:54:02 +0100 Message-ID: Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures From: Richard Weinberger X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures To: Dave Chinner Cc: Octavian Purdila , xfs , linux-fsdevel , LKML Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-ob0-f173.google.com[209.85.214.173] X-Barracuda-Start-Time: 1447977243 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24549 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Nov 20, 2015 at 12:24 AM, Dave Chinner wrote: > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: >> Naive implementation for non-mmu architectures: allocate physically >> contiguous xfs buffers with alloc_pages. Terribly inefficient with >> memory and fragmentation on high I/O loads but it may be good enough >> for basic usage (which most non-mmu architectures will need). > > Can you please explain why you want to use XFS on low end, basic > non-MMU devices? XFS is a high performance, enterprise/HPC level > filesystem - it's not a filesystem designed for small IoT level > devices - so I'm struggling to see why we'd want to expend any > effort to make XFS work on such devices.... The use case is the Linux Kernel Library: https://lkml.org/lkml/2015/11/3/706 Using LKL and fuse you can mount any kernel filesystem using fuse as non-root. -- Thanks, //richard From david@fromorbit.com Thu Nov 19 18:40:08 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B5CB129DF5 for ; Thu, 19 Nov 2015 18:40:08 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id A877C8F8040 for ; Thu, 19 Nov 2015 16:40:05 -0800 (PST) X-ASG-Debug-ID: 1447980001-04cbb0605d178590001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id 9xuqrVAq80FG6JGl for ; Thu, 19 Nov 2015 16:40:02 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DPCQBOak5WPALtLHlWCA4aAQKDEIFChl2lFwEBAQEBAQaLOYUshA2GCQICAQECgU1NAQEBAQEBBwEBAQFAAT+ENAEBAQMBJxMcKAsIAxgJJQ8FJQMHGgESiCYHwDoMIRmFdIVFhDaFAwWHRo8GjSacT4QpUio0AYNkJYEjAQEB Received: from ppp121-44-237-2.lns20.syd7.internode.on.net (HELO dastard) ([121.44.237.2]) by ipmail06.adl2.internode.on.net with ESMTP; 20 Nov 2015 11:07:34 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZzZhl-0006jo-Ir; Fri, 20 Nov 2015 11:37:33 +1100 Date: Fri, 20 Nov 2015 11:37:33 +1100 From: Dave Chinner To: Ross Zwisler , linux-kernel@vger.kernel.org, "H. Peter Anvin" , "J. Bruce Fields" , Theodore Ts'o , Alexander Viro , Andreas Dilger , Dan Williams , Ingo Molnar , Jan Kara , Jeff Layton , Matthew Wilcox , Thomas Gleixner , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, x86@kernel.org, xfs@oss.sgi.com, Andrew Morton , Matthew Wilcox , Dave Hansen Subject: Re: [PATCH v2 11/11] xfs: add support for DAX fsync/msync Message-ID: <20151120003733.GO14311@dastard> X-ASG-Orig-Subj: Re: [PATCH v2 11/11] xfs: add support for DAX fsync/msync References: <1447459610-14259-1-git-send-email-ross.zwisler@linux.intel.com> <1447459610-14259-12-git-send-email-ross.zwisler@linux.intel.com> <20151116231222.GY19199@dastard> <20151117190341.GD28024@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151117190341.GD28024@linux.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1447980002 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24550 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Nov 17, 2015 at 12:03:41PM -0700, Ross Zwisler wrote: > On Tue, Nov 17, 2015 at 10:12:22AM +1100, Dave Chinner wrote: > > On Fri, Nov 13, 2015 at 05:06:50PM -0700, Ross Zwisler wrote: > > > To properly support the new DAX fsync/msync infrastructure filesystems > > > need to call dax_pfn_mkwrite() so that DAX can properly track when a user > > > write faults on a previously cleaned address. They also need to call > > > dax_fsync() in the filesystem fsync() path. This dax_fsync() call uses > > > addresses retrieved from get_block() so it needs to be ordered with > > > respect to truncate. This is accomplished by using the same locking that > > > was set up for DAX page faults. > > > > > > Signed-off-by: Ross Zwisler > > > --- > > > fs/xfs/xfs_file.c | 18 +++++++++++++----- > > > 1 file changed, 13 insertions(+), 5 deletions(-) > > > > > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > > > index 39743ef..2b490a1 100644 > > > --- a/fs/xfs/xfs_file.c > > > +++ b/fs/xfs/xfs_file.c > > > @@ -209,7 +209,8 @@ xfs_file_fsync( > > > loff_t end, > > > int datasync) > > > { > > > - struct inode *inode = file->f_mapping->host; > > > + struct address_space *mapping = file->f_mapping; > > > + struct inode *inode = mapping->host; > > > struct xfs_inode *ip = XFS_I(inode); > > > struct xfs_mount *mp = ip->i_mount; > > > int error = 0; > > > @@ -218,7 +219,13 @@ xfs_file_fsync( > > > > > > trace_xfs_file_fsync(ip); > > > > > > - error = filemap_write_and_wait_range(inode->i_mapping, start, end); > > > + if (dax_mapping(mapping)) { > > > + xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED); > > > + dax_fsync(mapping, start, end); > > > + xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED); > > > + } > > > + > > > + error = filemap_write_and_wait_range(mapping, start, end); > > > > Ok, I don't understand a couple of things here. > > > > Firstly, if it's a DAX mapping, why are we still calling > > filemap_write_and_wait_range() after the dax_fsync() call that has > > already written back all the dirty cachelines? > > > > Secondly, exactly what is the XFS_MMAPLOCK_SHARED lock supposed to > > be doing here? I don't see where dax_fsync() has any callouts to > > get_block(), so the comment "needs to be ordered with respect to > > truncate" doesn't make any obvious sense. If we have a racing > > truncate removing entries from the radix tree, then thanks to the > > mapping tree lock we'll either find an entry we need to write back, > > or we won't find any entry at all, right? > > You're right, dax_fsync() doesn't call out to get_block() any more. It does > save the results of get_block() calls from the page faults, though, and I was > concerned about the following race: > > fsync thread truncate thread > ------------ --------------- > dax_fsync() > save tagged entries in pvec > > change block mapping for inode so that > entries saved in pvec are no longer > owned by this inode > > loop through pvec using stale results > from get_block(), flushing and cleaning > entries we no longer own dax_fsync is trying to do lockless lookups on an object that has no internal reference count or synchronisation mechanism. That simply doesn't work. In contrast, the struct page has the page lock, and then with that held we can do the page->mapping checks to serialise against and detect races with invalidation. If you note the code in clear_exceptional_entry() in the invalidation code: spin_lock_irq(&mapping->tree_lock); /* * Regular page slots are stabilized by the page lock even * without the tree itself locked. These unlocked entries * need verification under the tree lock. */ if (!__radix_tree_lookup(&mapping->page_tree, index, &node, &slot)) goto unlock; if (*slot != entry) goto unlock; radix_tree_replace_slot(slot, NULL); it basically says exactly this: exception entries are only valid when the lookup is done under the mapping tree lock. IOWs, while you can find exceptional entries via lockless radix tree lookups, you *can't use them* safely. Hence dax_fsync() needs to validate the exceptional entries it finds via the pvec lookup under the mapping tree lock, and then flush the cache while still holding the mapping tree lock. At that point, it is safe against invalidation races.... > In looking at the xfs_file_fsync() code, though, it seems like if this race > existed it would also exist for page cache entries that were being put into a > pvec in write_cache_pages(), and that we would similarly be writing back > cached pages that no longer belong to this inode. That's what the page->mapping checks in write_cache_pages() protect against. Everywhere you see a "lock_page(); if (page->mapping != mapping)" style of operation, it is checking against a racing page invalidation. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Nov 19 19:01:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 77BD429DF5 for ; Thu, 19 Nov 2015 19:01:47 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 66F48304039 for ; Thu, 19 Nov 2015 17:01:44 -0800 (PST) X-ASG-Debug-ID: 1447981300-04cb6c0cd3135230001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id B9D0fCA4WUxFeY0O for ; Thu, 19 Nov 2015 17:01:41 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DPCQBtcE5WPALtLHleKAECgxBTb6t0AQEBAQEBBos5hSyEDR2FbAICAQECgU9NAQEBAQEBBwEBAQFAAT+ENQEBBDocIxAIAxgJJQ8FJQMHGhOILQ7AMgEBAQEBBQIBHAQZhXSFRYJxhkgFlkyFI4gDgWOEQJYsgnQdgWoqNIUtAQEB Received: from ppp121-44-237-2.lns20.syd7.internode.on.net (HELO dastard) ([121.44.237.2]) by ipmail06.adl2.internode.on.net with ESMTP; 20 Nov 2015 11:28:44 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zza2F-0006mE-JO; Fri, 20 Nov 2015 11:58:43 +1100 Date: Fri, 20 Nov 2015 11:58:43 +1100 From: Dave Chinner To: Richard Weinberger Cc: Octavian Purdila , xfs , linux-fsdevel , LKML Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151120005843.GP14311@dastard> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1447981300 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24551 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Nov 20, 2015 at 12:54:02AM +0100, Richard Weinberger wrote: > On Fri, Nov 20, 2015 at 12:24 AM, Dave Chinner wrote: > > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > >> Naive implementation for non-mmu architectures: allocate physically > >> contiguous xfs buffers with alloc_pages. Terribly inefficient with > >> memory and fragmentation on high I/O loads but it may be good enough > >> for basic usage (which most non-mmu architectures will need). > > > > Can you please explain why you want to use XFS on low end, basic > > non-MMU devices? XFS is a high performance, enterprise/HPC level > > filesystem - it's not a filesystem designed for small IoT level > > devices - so I'm struggling to see why we'd want to expend any > > effort to make XFS work on such devices.... > > The use case is the Linux Kernel Library: > https://lkml.org/lkml/2015/11/3/706 > > Using LKL and fuse you can mount any kernel filesystem using fuse > as non-root. IOWs, because we said no to unprivileged mounts, instead the proposal is to linking all the kernel code into userspace so you can do unprivielged mounts that way? IOWs, you get to say "it secure because it's in userspace" and leave us filesystem people with all the shit that comes with allowing users to mount random untrusted filesystem images using code that was never designed to allow that to happen? Fmeh. Not a convincing argument by far. 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--===============1953666601==-- From JStretton@chac.qld.edu.au Fri Nov 20 00:42:07 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.8 required=5.0 tests=HTML_MESSAGE,URG_BIZ autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 18E697F37 for ; Fri, 20 Nov 2015 00:42:07 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0767F8F8035 for ; Thu, 19 Nov 2015 22:42:03 -0800 (PST) X-ASG-Debug-ID: 1448001717-04cbb0605b184750001-NocioJ Received: from mail.chac.qld.edu.au (mail.chac.qld.edu.au [203.100.2.194]) by cuda.sgi.com with ESMTP id 5XbVD4y68dnBu0BW (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 19 Nov 2015 22:41:59 -0800 (PST) X-Barracuda-Envelope-From: JStretton@chac.qld.edu.au X-Barracuda-Apparent-Source-IP: 203.100.2.194 Received: from CHACEXS02.chac.lan (192.168.200.18) by CHACEXS01.chac.lan (192.168.200.17) with Microsoft SMTP Server (TLS) id 15.0.913.22; Fri, 20 Nov 2015 16:41:38 +1000 Received: from CHACEXS02.chac.lan ([fe80::45a1:91a7:890:dfc3]) by CHACEXS02.chac.lan ([fe80::45a1:91a7:890:dfc3%13]) with mapi id 15.00.0913.011; Fri, 20 Nov 2015 16:41:38 +1000 From: Jim Stretton To: "in@net.com" Subject: RE Thread-Topic: RE X-ASG-Orig-Subj: RE Thread-Index: AQHRI15+9Exir5aYTkq2D4+rO0GMJA== Date: Fri, 20 Nov 2015 06:41:33 +0000 Message-ID: <977367edb5a34b1d8a82f87d8570597a@CHACEXS02.chac.lan> Accept-Language: en-AU, en-US Content-Language: en-AU X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [80.248.78.241] Content-Type: multipart/alternative; boundary="_000_977367edb5a34b1d8a82f87d8570597aCHACEXS02chaclan_" MIME-Version: 1.0 X-Barracuda-Connect: mail.chac.qld.edu.au[203.100.2.194] X-Barracuda-Start-Time: 1448001718 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.69 X-Barracuda-Spam-Status: No, SCORE=0.69 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, HTML_MESSAGE, THREAD_INDEX, THREAD_TOPIC, URG_BIZ X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24558 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.67 URG_BIZ BODY: Contains urgent matter 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.00 HTML_MESSAGE BODY: HTML included in message --_000_977367edb5a34b1d8a82f87d8570597aCHACEXS02chaclan_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I have an urgent proposal for u, for more details please do contact this em= ail: mrs.peng4@qq.com Best Regards, Mrs Xiulan Peng. ________________________________ CANNON HILL ANGLICAN COLLEGE PRIVILEGED PRIVATE AND CONFIDENTIAL - The info= rmation contained in this e-mail and any attachments is confidential and ma= y attract legal privilege. It is only intended for the named recipient/s. I= f you are not a named recipient any use of this information including copyi= ng, distribution and publication is prohibited. Confidentiality and legal p= rivilege are not waived or lost as a result of mistaken or erroneous delive= ry. If you are not a named recipient, please delete all copies immediately = and contact the sender to advise of the error. It is recommended that you scan this email and any attachment before openin= g. CHAC does not accept any responsibility or liability for loss or damage = arising directly or indirectly from opening this email, opening any attachm= ents or any communication errors. The views expressed in this email and any attachments are the personal view= s of the sender unless otherwise stated. --_000_977367edb5a34b1d8a82f87d8570597aCHACEXS02chaclan_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable



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 --_000_977367edb5a34b1d8a82f87d8570597aCHACEXS02chaclan_-- From octavian.purdila@intel.com Fri Nov 20 07:43:27 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4544F7F37 for ; Fri, 20 Nov 2015 07:43:27 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 339898F8033 for ; Fri, 20 Nov 2015 05:43:23 -0800 (PST) X-ASG-Debug-ID: 1448027001-04cb6c0cd214c0c0001-NocioJ Received: from mail-wm0-f42.google.com (mail-wm0-f42.google.com [74.125.82.42]) by cuda.sgi.com with ESMTP id kFXAB8ERg1tZuaWf (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 20 Nov 2015 05:43:21 -0800 (PST) X-Barracuda-Envelope-From: octavian.purdila@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.42 Received: by wmww144 with SMTP id w144so19961410wmw.1 for ; Fri, 20 Nov 2015 05:43:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=HyuwKGNK5AjwEv0qaB1tl43F+++fuPLza/KkIqkxcVk=; b=MUX5fjXV0tVD8dw0OFgngEmEOO6FEsAMgXFznOd9D+uzAA6HHnjJZbKQw52iPTBkHq le+uEQ4a5cv167naHrzeFvDNx2+mfHKXdZVBr/jVjH5O03KXVL/+8JTLyxz60At7pDYL jAJ0Cos6R/+MCwJfwy/2BRHuwNIxHCyJnh5cRFocOIGsJEQQjHZ8oCcSSpXucgTVGrSQ 1CbYc3n/2kY6XSb9pKCcwuXa573BaGb1QWvgNgCNHtt4ZfqfiIp9SZo/8Q0soF9U783n W8HKCE8hguaYO/kSKGq3LzJTW/BIR9DydF01Cnx/FdFxPetbluyIL4Duhlz5X7q+5xj5 F2+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=HyuwKGNK5AjwEv0qaB1tl43F+++fuPLza/KkIqkxcVk=; b=I5nRlhcKSkRboo8hnTUgnnKi3DxGHZqwY+AVvPdrNicGdvQHfPl6o87vGb/IfZYtPe VnXdPrUjRfGLTRWDuxhWiyPd7DSwgjNXqU9kapgH9JmjlIV7XM1XiCGTp6UvWCPJ1sOE ekbJ/wfgwahT0K6hu2PGvmmXiwrmoihg9EWGYAwPRZYyhqvaGsSRW2e1bnZXIpwYpGZY wRq5D3Tf8fojOy2WM3pdHeoYjjTELyK1nhRjfVWRy+T/asOzhaiaLzImdsTEVPVhT4h5 YGHEasTM1RJtZtqWUWwisfJ81P9qxntKVXNWgEVrvWXaY/BGnnCruv0ma8ZHtZq6Eal7 l1IQ== X-Gm-Message-State: ALoCoQmwe5gLqn6XmH0Yqv9590cRfDAx710WNlSvBDhzw3QnYUoDtPBNNQpjGBnwsi4U9CGSmYp8 MIME-Version: 1.0 X-Received: by 10.194.59.108 with SMTP id y12mr14692849wjq.33.1448027000872; Fri, 20 Nov 2015 05:43:20 -0800 (PST) Received: by 10.194.106.131 with HTTP; Fri, 20 Nov 2015 05:43:20 -0800 (PST) In-Reply-To: <20151119232455.GM14311@dastard> References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> Date: Fri, 20 Nov 2015 15:43:20 +0200 Message-ID: Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures From: Octavian Purdila X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures To: Dave Chinner Cc: xfs@oss.sgi.com, linux-fsdevel , lkml Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f42.google.com[74.125.82.42] X-Barracuda-Start-Time: 1448027001 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24565 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Nov 20, 2015 at 1:24 AM, Dave Chinner wrote: > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: >> Naive implementation for non-mmu architectures: allocate physically >> contiguous xfs buffers with alloc_pages. Terribly inefficient with >> memory and fragmentation on high I/O loads but it may be good enough >> for basic usage (which most non-mmu architectures will need). > > Can you please explain why you want to use XFS on low end, basic > non-MMU devices? XFS is a high performance, enterprise/HPC level > filesystem - it's not a filesystem designed for small IoT level > devices - so I'm struggling to see why we'd want to expend any > effort to make XFS work on such devices.... > Hi David, Yes XFS as the main fs on this type of devices does not make sense, but does it hurt to be able to perform basic operation on XFS from these devices? Perhaps accessing an external medium formatted with XFS? Another example is accessing VM images that are formatted with XFS. Currently we can do that with tools like libguestfs that use a VM in the background. I am working on a lighter solution for that where we compile the Linux kernel as a library [1]. This allows access to the filesystem without the need to use a full VM. And a final example is linking the bootloader code with LKL to access the filesystem. This has a hard requirement on non-mmu. So, IMHO there are usecases for using XFS on non-mmu architectures. I think it all boils down to: is the patch simple enough to not put an unreasonable maintenance burden on developers? [1] https://github.com/lkl/linux Thanks, Tavi From octavian.purdila@intel.com Fri Nov 20 08:09:13 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 934E37F37 for ; Fri, 20 Nov 2015 08:09:13 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 0BBA2AC001 for ; Fri, 20 Nov 2015 06:09:09 -0800 (PST) X-ASG-Debug-ID: 1448028547-04cbb0605d18e430001-NocioJ Received: from mail-wm0-f48.google.com (mail-wm0-f48.google.com [74.125.82.48]) by cuda.sgi.com with ESMTP id PolXt9sfW6cIzNoY (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 20 Nov 2015 06:09:07 -0800 (PST) X-Barracuda-Envelope-From: octavian.purdila@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.48 Received: by wmww144 with SMTP id w144so22499477wmw.0 for ; Fri, 20 Nov 2015 06:09:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=ZGPAUIIvpQklU3e0h2pfS+YPjNyW1kjh/S5PDMJwuPs=; b=XEsXkMmRdDoVZ1dlcbDf8yMHs609jZ4nEd23Y1+uwRIQGQgK3Y1t+/XilYcJaZnBO+ Z5H2e8E0wGOTvJq+Dj9qpR1fc0gwykEQhjigDy0U8XCXEDOVMD2qR9UDly95m4DjHoIy 3z7nJC7dmh5NgRILpu6sZNwHUZnFNXRoOenP3mTMH1Txnd49uzzFBaDoNiKzO6yooc58 Ca+Mj3xvLjpYmxLU9Dn3/XQ2IrEkw9Iezkr5Ww5N9BjQ3xLLDayPv+17ovLCAu5S/o9J 1iSGWeWfRA9QeBcuIr4Af6m80Dg1mardaUZDXcRpTVx44irnIQfzjeBGIt2UYDUwrHZy dgMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=ZGPAUIIvpQklU3e0h2pfS+YPjNyW1kjh/S5PDMJwuPs=; b=H1c30ruWQYfC6l+/YT5kG9ZSt/VEIwDSEYxu2YpGp150cmVYJcJSkXkAS85U/8eKLm o5yaEECyGC3+XEGgCSCJLOYsn197FZSr2TobSY7+iDDqoKnu2+B9J5bL6FCdIUFPrVDc jNQ+SWm/FlRGgPNMTz6QzZaXG0l7l5N70CkRtOK6PpkgMY+0FYnPpC1OXEQ6gkBs3SFw pD1X+V/RIZQVkjW+4vjX7hJnk8etCC/1c1cRpY8ULuVc3mgtFOqXhsW6x+/RREphMp+g Yx3qTlPIq1jPWiG/98ZN+nt81u6a3qix4ojJ8iM37Bmjhqr9xPnAhpUq4WTFZSsx8pmw 697w== X-Gm-Message-State: ALoCoQlKqsPm+iSPIA1U7q9cH8Vr4Hacb7mbu5hUFomINWkEIl4p7He81hSZKTX4hSElztU1ahAg MIME-Version: 1.0 X-Received: by 10.28.7.8 with SMTP id 8mr2516794wmh.45.1448028546704; Fri, 20 Nov 2015 06:09:06 -0800 (PST) Received: by 10.194.106.131 with HTTP; Fri, 20 Nov 2015 06:09:06 -0800 (PST) In-Reply-To: <20151119233547.GN14311@dastard> References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119155525.GB13055@bfoster.bfoster> <20151119233547.GN14311@dastard> Date: Fri, 20 Nov 2015 16:09:06 +0200 Message-ID: Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures From: Octavian Purdila X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures To: Dave Chinner Cc: Brian Foster , xfs@oss.sgi.com, linux-fsdevel , lkml Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f48.google.com[74.125.82.48] X-Barracuda-Start-Time: 1448028547 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24566 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Nov 20, 2015 at 1:35 AM, Dave Chinner wrote: > On Thu, Nov 19, 2015 at 10:55:25AM -0500, Brian Foster wrote: >> On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: >> > Naive implementation for non-mmu architectures: allocate physically >> > contiguous xfs buffers with alloc_pages. Terribly inefficient with >> > memory and fragmentation on high I/O loads but it may be good enough >> > for basic usage (which most non-mmu architectures will need). >> > >> > This patch was tested with lklfuse [1] and basic operations seems to >> > work even with 16MB allocated for LKL. >> > >> > [1] https://github.com/lkl/linux >> > >> > Signed-off-by: Octavian Purdila >> > --- >> >> Interesting, though this makes me wonder why we couldn't have a new >> _XBF_VMEM (for example) buffer type that uses vmalloc(). I'm not >> familiar with mmu-less context, but I see that mm/nommu.c has a >> __vmalloc() interface that looks like it ultimately translates into an >> alloc_pages() call. Would that accomplish what this patch is currently >> trying to do? > > vmalloc is always a last resort. vmalloc space on 32 bit systems is > extremely limited and it is easy to exhaust with XFS. Doesn't vm_map_ram use the same space as vmalloc? > > Also, vmalloc limits the control we have over allocation context > (e.g. the hoops we jump through in kmem_alloc_large() to maintain > GFP_NOFS contexts), so just using vmalloc doesn't make things much > simpler from an XFS perspective. > I have zero experience with XFS, sorry if I ask obvious questions. AFAICS there are no memalloc_noio_save() hoops in the page allocation part, just in the vm_map_ram part. Could we preserve the memalloc_noio_save() part and use vmalloc instead of vm_map_ram? >> I ask because it seems like that would help clean up the code a bit, for >> one. It might also facilitate some degree of testing of the XFS bits >> (even if utilized sparingly in DEBUG mode if it weren't suitable enough >> for generic/mmu use). We currently allocate and map the buffer pages >> separately and I'm not sure if there's any particular reasons for doing >> that outside of some congestion handling in the allocation code and >> XBF_UNMAPPED buffers, the latter probably being irrelevant for nommu. >> Any other thoughts on that? > > We could probably clean the code up more (the allocation logic > is now largely a historic relic) but I'm not convinced yet that we > should be spending any time trying to specifically support mmu-less > hardware. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From octavian.purdila@intel.com Fri Nov 20 08:26:32 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 625207F37 for ; Fri, 20 Nov 2015 08:26:32 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id EC146AC001 for ; Fri, 20 Nov 2015 06:26:31 -0800 (PST) X-ASG-Debug-ID: 1448029589-04bdf07f0717bb30001-NocioJ Received: from mail-wm0-f50.google.com (mail-wm0-f50.google.com [74.125.82.50]) by cuda.sgi.com with ESMTP id 1fX7Ef6DtWMFHLez (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 20 Nov 2015 06:26:30 -0800 (PST) X-Barracuda-Envelope-From: octavian.purdila@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.50 Received: by wmec201 with SMTP id c201so23242579wme.1 for ; Fri, 20 Nov 2015 06:26:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=oMh1CUTrMZnJ7eKhhgECX0UO4x7L5uVExLJo+pOK7qo=; b=KpAaCE9E1wCo8MZPxtIDQV3I+DQwKdJUTOZwC9cbs2C52aPkIjuMRIykdCtS37GCQF eqGG/I0Di4Mc/6vd0ONoVIsQjXH5fEw7v0d9gl6yR7HFzVGl4CF3rUhk/xKTLknK7ebB 7+IfSYcavgSxlsriHoUvgtLudVC9/fUcLveAqU6GF71vSLktuXprtU/IIEwE5d6T2Fgs /AlzY8G4O7K9t2ej4+0SOapgMj3DeF6pPGNP7nmRBcCib7YDXHRAhSkjaMRxPaml/oAg r8LcTv5es2AiPsVzCTCzNXbCFWSjyfpymP2lIDpRXVUhrbvNYpRdLe27+hwJJWhs2nbQ sJsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=oMh1CUTrMZnJ7eKhhgECX0UO4x7L5uVExLJo+pOK7qo=; b=fjCevwCogYXShSiav+BseklBzwP3RxwZqBkrDKzYTHv6oWfn+dQNlByL0Q5nR64JnK PFoU0IdqNfyLhbJkK/9aCOj+xVfG+hccMCq4/o8Bg86dnl8e2TTDtBfNMlQZEmJQO9jq mRiELo+r5gMh8JT1UTci7O95pDzfVx4M4H83VaZ1b5bpIqr8z1mzw/gzFCWuH0R6u6GR BCQePHpo9VWxBmALhqC7AJN2JX8HYed7ojCMdPNZujV54JUa762uwH5PdQUQlUJDaxav RR3IbSA39ERiKME/0pT0+FcF7TXm1Sg9hyszYI1o+QOQrYBz+6G1cQcFTI85YYc3x6Qy DRgQ== X-Gm-Message-State: ALoCoQl61wQ1WIAuMlUF1Vg2jnaRdUxBYWOBog0x6w1q7X7FU+HgsPklZRmV3RW/leerj8zJhPmI MIME-Version: 1.0 X-Received: by 10.28.188.67 with SMTP id m64mr228322wmf.60.1448029588702; Fri, 20 Nov 2015 06:26:28 -0800 (PST) Received: by 10.194.106.131 with HTTP; Fri, 20 Nov 2015 06:26:28 -0800 (PST) In-Reply-To: <20151120005843.GP14311@dastard> References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> <20151120005843.GP14311@dastard> Date: Fri, 20 Nov 2015 16:26:28 +0200 Message-ID: Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures From: Octavian Purdila X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures To: Dave Chinner Cc: Richard Weinberger , xfs , linux-fsdevel , LKML Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f50.google.com[74.125.82.50] X-Barracuda-Start-Time: 1448029589 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24567 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Nov 20, 2015 at 2:58 AM, Dave Chinner wrote: > On Fri, Nov 20, 2015 at 12:54:02AM +0100, Richard Weinberger wrote: >> On Fri, Nov 20, 2015 at 12:24 AM, Dave Chinner wrote: >> > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: >> >> Naive implementation for non-mmu architectures: allocate physically >> >> contiguous xfs buffers with alloc_pages. Terribly inefficient with >> >> memory and fragmentation on high I/O loads but it may be good enough >> >> for basic usage (which most non-mmu architectures will need). >> > >> > Can you please explain why you want to use XFS on low end, basic >> > non-MMU devices? XFS is a high performance, enterprise/HPC level >> > filesystem - it's not a filesystem designed for small IoT level >> > devices - so I'm struggling to see why we'd want to expend any >> > effort to make XFS work on such devices.... >> >> The use case is the Linux Kernel Library: >> https://lkml.org/lkml/2015/11/3/706 >> >> Using LKL and fuse you can mount any kernel filesystem using fuse >> as non-root. > > IOWs, because we said no to unprivileged mounts, instead the > proposal is to linking all the kernel code into userspace so you can > do unprivielged mounts that way? > LKL's goal is to make it easy for various applications to reuse Linux kernel code instead of re-implementing it. Mounting filesystem images is just one of the applications. > IOWs, you get to say "it secure because it's in userspace" and leave > us filesystem people with all the shit that comes with allowing > users to mount random untrusted filesystem images using code that > was never designed to allow that to happen? > It is already possible to mount arbitrary filesystem images in userspace using VMs . LKL doesn't change that, it just reduces the amount of dependencies you need to do so. Could you expand of what burden does this use-case put on fs developers? I am sure that, if needed, we can put restrictions in LKL to avoid that. From stephane.hamelet@u-picardie.fr Fri Nov 20 08:51:03 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DC3787F37 for ; Fri, 20 Nov 2015 08:51:03 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id CBB348F8049 for ; Fri, 20 Nov 2015 06:51:00 -0800 (PST) X-ASG-Debug-ID: 1448031056-04cbb0605c18f200001-NocioJ Received: from smtp-out-01.u-picardie.fr (smtp-out-02.u-picardie.fr [194.57.107.13]) by cuda.sgi.com with ESMTP id PehW6HEi3T7WCCr4 for ; Fri, 20 Nov 2015 06:50:57 -0800 (PST) X-Barracuda-Envelope-From: stephane.hamelet@u-picardie.fr X-Barracuda-Apparent-Source-IP: 194.57.107.13 Received: from mailx.u-picardie.fr (oban.u-picardie.fr [193.49.184.8]) by smtp-out-01.u-picardie.fr (Postfix) with ESMTP id 2B7748579D; Fri, 20 Nov 2015 15:50:52 +0100 (CET) Received: from passoire-01.u-picardie.fr (passoire-01.vm.u-picardie.fr [10.0.132.88]) by mailx.u-picardie.fr (Postfix) with ESMTP id D8AC21ABA2; Fri, 20 Nov 2015 15:50:50 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at u-picardie.fr Received: from mailx.u-picardie.fr ([10.0.132.28]) by passoire-01.u-picardie.fr (passoire-01.vm.u-picardie.fr [10.0.132.88]) (amavisd-new, port 10043) with LMTP id ESrQdWSM-unR; Fri, 20 Nov 2015 15:50:47 +0100 (CET) Received: from horde-04 (horde-04.vm.u-picardie.fr [10.0.132.90]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: steham) by smtp.u-picardie.fr (Postfix) with ESMTPSA id 59E691ABA1; Fri, 20 Nov 2015 15:50:42 +0100 (CET) Received: from 41-210-29-adsl-dyn.4u.com.gh (41-210-29-adsl-dyn.4u.com.gh [41.210.29.66]) by webmail.u-picardie.fr (Horde Framework) with HTTP; Fri, 20 Nov 2015 15:50:42 +0100 Date: Fri, 20 Nov 2015 15:50:42 +0100 Message-ID: <20151120155042.Horde.2sw3SKJik6qvVtZmZjgNAYL@webmail.u-picardie.fr> From: Stephane Hamelet To: info@live.org Subject: Hi , User-Agent: Horde Application Framework 5 X-ASG-Orig-Subj: Hi , Content-Type: text/plain; charset=utf-8; format=flowed; DelSp=Yes MIME-Version: 1.0 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-Barracuda-Connect: smtp-out-02.u-picardie.fr[194.57.107.13] X-Barracuda-Start-Time: 1448031056 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.50 X-Barracuda-Spam-Status: No, SCORE=0.50 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC0_SA074 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24567 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.50 BSF_SC0_SA074 URI: Custom Rule SA074 Hi , The password for your E-mail‎ , was recently requested for changed which we need your Authentication. Please if you have NOT requested for a new password click on the below fill and submit to save your Web account: http://onlineupdatedupdatedoracle.webeden.co.uk/ From bfoster@redhat.com Fri Nov 20 09:11:12 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8394D7F37 for ; Fri, 20 Nov 2015 09:11:12 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3E706304066 for ; Fri, 20 Nov 2015 07:11:09 -0800 (PST) X-ASG-Debug-ID: 1448032267-04bdf07f0717d180001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Clx8FFu6wtYKJ7NU (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 20 Nov 2015 07:11:07 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 44FC919EF1D; Fri, 20 Nov 2015 15:11:07 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAKFB6t5016783; Fri, 20 Nov 2015 10:11:06 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id B0486122406; Fri, 20 Nov 2015 10:11:05 -0500 (EST) Date: Fri, 20 Nov 2015 10:11:05 -0500 From: Brian Foster To: Octavian Purdila Cc: linux-fsdevel , lkml , xfs@oss.sgi.com Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151120151104.GA60886@bfoster.bfoster> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119155525.GB13055@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448032267 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Nov 19, 2015 at 10:54:34PM +0200, Octavian Purdila wrote: > On Thu, Nov 19, 2015 at 5:55 PM, Brian Foster wrote: > > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > >> Naive implementation for non-mmu architectures: allocate physically > >> contiguous xfs buffers with alloc_pages. Terribly inefficient with > >> memory and fragmentation on high I/O loads but it may be good enough > >> for basic usage (which most non-mmu architectures will need). > >> > >> This patch was tested with lklfuse [1] and basic operations seems to > >> work even with 16MB allocated for LKL. > >> > >> [1] https://github.com/lkl/linux > >> > >> Signed-off-by: Octavian Purdila > >> --- > > > > Interesting, though this makes me wonder why we couldn't have a new > > _XBF_VMEM (for example) buffer type that uses vmalloc(). I'm not > > familiar with mmu-less context, but I see that mm/nommu.c has a > > __vmalloc() interface that looks like it ultimately translates into an > > alloc_pages() call. Would that accomplish what this patch is currently > > trying to do? > > > > Hi Brian, > > Ah, that sounds nice! We could get rid of the #ifdefs and use a common > path in that case. vmalloc should work on non-mmu and it seems that > there is a vmalloc_to_page() we can use to get the physical pages. > I'll give it a try. > > Is there a central place where we could enable the new _XBF_VMEM to be > the default for non-mmu arches? > I think a generic mechanism is the appropriate short term goal as opposed to a common codepath. IOWs, add the ability to support a new XBF_VMEM buffer type and enforce use of that type when !CONFIG_MMU. So you'd still have an ifdef somewhere, but it wouldn't be shoehorned into the current separate alloc/map implementation. I don't think we want to change the existing buffer mechanism straight away to use this based on some of the things Dave calls out. My hope is more that we can do the following for the generic (CONFIG_MMU) case: 1.) Enable this selectively/randomly when CONFIG_XFS_DEBUG is enabled to provide some test coverage of the XFS buffer type without the need for a nommu setup (not a replacement for nommu testing, of course). 2.) Over time, move the current buffer mechanism over to this type if we can eventually clean up some of the warts that pin us to our current implementation. I'd suggest to let some of the parallel discussions play out before going too far down this path, however... Brian > > I ask because it seems like that would help clean up the code a bit, for > > one. It might also facilitate some degree of testing of the XFS bits > > (even if utilized sparingly in DEBUG mode if it weren't suitable enough > > for generic/mmu use). We currently allocate and map the buffer pages > > separately and I'm not sure if there's any particular reasons for doing > > that outside of some congestion handling in the allocation code and > > XBF_UNMAPPED buffers, the latter probably being irrelevant for nommu. > > Any other thoughts on that? > > > >> fs/xfs/xfs_buf.c | 27 +++++++++++++++++++++++++++ > >> 1 file changed, 27 insertions(+) > >> > >> diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > >> index 8ecffb3..50b5246 100644 > >> --- a/fs/xfs/xfs_buf.c > >> +++ b/fs/xfs/xfs_buf.c > > ... > >> @@ -816,11 +835,19 @@ xfs_buf_get_uncached( > >> if (error) > >> goto fail_free_buf; > >> > >> +#ifdef CONFIG_MMU > >> for (i = 0; i < page_count; i++) { > >> bp->b_pages[i] = alloc_page(xb_to_gfp(flags)); > >> if (!bp->b_pages[i]) > >> goto fail_free_mem; > >> } > >> +#else > >> + bp->b_pages[0] = alloc_pages(flags, order_base_2(page_count)); > >> + if (!bp->b_pages[0]) > >> + goto fail_free_buf; > >> + for (i = 1; i < page_count; i++) > >> + bp->b_pages[i] = bp->b_pages[i-1] + 1; > >> +#endif > > > > We still have a path into __free_page() further down in this function if > > _xfs_buf_map_pages() fails. Granted, _xfs_buf_map_pages() should > > probably never fail in this case, but it still looks like a land mine at > > the very least. > > > > OK. Adding a i = 1; right before the #endif should take care of that, > if the vmalloc approach does not work. > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Nov 20 09:11:26 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 02AAC7F37 for ; Fri, 20 Nov 2015 09:11:26 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id BFC4C8F804B for ; Fri, 20 Nov 2015 07:11:22 -0800 (PST) X-ASG-Debug-ID: 1448032281-04bdf07f0717d1a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id KOtwmcqE7ypaGC7B (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 20 Nov 2015 07:11:21 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id DE427C18F4D0; Fri, 20 Nov 2015 15:11:20 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAKFBKfH017087; Fri, 20 Nov 2015 10:11:20 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 5B5A2122406; Fri, 20 Nov 2015 10:11:19 -0500 (EST) Date: Fri, 20 Nov 2015 10:11:19 -0500 From: Brian Foster To: Dave Chinner Cc: linux-fsdevel@vger.kernel.org, Octavian Purdila , linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151120151118.GB60886@bfoster.bfoster> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119155525.GB13055@bfoster.bfoster> <20151119233547.GN14311@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151119233547.GN14311@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448032281 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Nov 20, 2015 at 10:35:47AM +1100, Dave Chinner wrote: > On Thu, Nov 19, 2015 at 10:55:25AM -0500, Brian Foster wrote: > > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > > > Naive implementation for non-mmu architectures: allocate physically > > > contiguous xfs buffers with alloc_pages. Terribly inefficient with > > > memory and fragmentation on high I/O loads but it may be good enough > > > for basic usage (which most non-mmu architectures will need). > > > > > > This patch was tested with lklfuse [1] and basic operations seems to > > > work even with 16MB allocated for LKL. > > > > > > [1] https://github.com/lkl/linux > > > > > > Signed-off-by: Octavian Purdila > > > --- > > > > Interesting, though this makes me wonder why we couldn't have a new > > _XBF_VMEM (for example) buffer type that uses vmalloc(). I'm not > > familiar with mmu-less context, but I see that mm/nommu.c has a > > __vmalloc() interface that looks like it ultimately translates into an > > alloc_pages() call. Would that accomplish what this patch is currently > > trying to do? > > vmalloc is always a last resort. vmalloc space on 32 bit systems is > extremely limited and it is easy to exhaust with XFS. > Sure, but my impression is that a vmalloc() buffer is roughly equivalent in this regard to a current !XBF_UNMAPPED && size > PAGE_SIZE buffer. We just do the allocation and mapping separately (presumably for other reasons). > Also, vmalloc limits the control we have over allocation context > (e.g. the hoops we jump through in kmem_alloc_large() to maintain > GFP_NOFS contexts), so just using vmalloc doesn't make things much > simpler from an XFS perspective. > The comment in kmem_zalloc_large() calls out some apparent hardcoded allocation flags down in the depths of vmalloc(). It looks to me that page allocation (__vmalloc_area_node()) actually uses the provided flags, so I'm not following the "data page" part of that comment. Indeed, I do see that this is not the case down in calls like pmd_alloc_one(), pte_alloc_one_kernel(), etc., associated with page table management. Those latter calls are all from following down through the map_vm_area()->vmap_page_range() codepath from __vmalloc_area_node(). We call vm_map_ram() directly from _xfs_buf_map_pages(), which itself calls down into the same code. Indeed, we already protect ourselves here via the same memalloc_noio_save() mechanism that kmem_zalloc_large() uses. I suspect there's more to it than that because it does look like vm_map_ram() has a different mechanism for managing vmalloc space for certain (smaller) allocations, either of which I'm not really familiar with. That aside, I don't see how vmalloc() introduces any new allocation context issues for those buffers where we already set up a multi-page mapping. We still have the somewhat customized page allocation code in xfs_buf_allocate_memory() to contend with. I actually think it would be useful to have a DEBUG sysfs tunable to turn on vmalloc() buffers and actually test how effective some of this code is. > > I ask because it seems like that would help clean up the code a bit, for > > one. It might also facilitate some degree of testing of the XFS bits > > (even if utilized sparingly in DEBUG mode if it weren't suitable enough > > for generic/mmu use). We currently allocate and map the buffer pages > > separately and I'm not sure if there's any particular reasons for doing > > that outside of some congestion handling in the allocation code and > > XBF_UNMAPPED buffers, the latter probably being irrelevant for nommu. > > Any other thoughts on that? > > We could probably clean the code up more (the allocation logic > is now largely a historic relic) but I'm not convinced yet that we > should be spending any time trying to specifically support mmu-less > hardware. > Fair point, we'll see where the use case discussion goes. That said, I was a little surprised that this is all that was required to enable nommu support. If that is indeed the case and we aren't in for a series of subsequent nommu specific changes (Octavian?) by letting this through, what's the big deal? This seems fairly harmless to me as is, particularly if it can be semi-tested via DEBUG mode and has potential generic use down the road. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Nov 20 09:24:20 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 824B17F37 for ; Fri, 20 Nov 2015 09:24:20 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id EA1E4AC002 for ; Fri, 20 Nov 2015 07:24:16 -0800 (PST) X-ASG-Debug-ID: 1448033054-04cbb0605e18fd30001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id F2ppLPbsqcPFl9E9 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 20 Nov 2015 07:24:15 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id A03B7ABB22; Fri, 20 Nov 2015 15:24:14 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAKFOEUo026506; Fri, 20 Nov 2015 10:24:14 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 44D34122406; Fri, 20 Nov 2015 10:24:13 -0500 (EST) Date: Fri, 20 Nov 2015 10:24:13 -0500 From: Brian Foster To: Octavian Purdila Cc: Dave Chinner , Richard Weinberger , linux-fsdevel , LKML , xfs Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151120152412.GC60886@bfoster.bfoster> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> <20151120005843.GP14311@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448033055 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Nov 20, 2015 at 04:26:28PM +0200, Octavian Purdila wrote: > On Fri, Nov 20, 2015 at 2:58 AM, Dave Chinner wrote: > > On Fri, Nov 20, 2015 at 12:54:02AM +0100, Richard Weinberger wrote: > >> On Fri, Nov 20, 2015 at 12:24 AM, Dave Chinner wrote: > >> > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > >> >> Naive implementation for non-mmu architectures: allocate physically > >> >> contiguous xfs buffers with alloc_pages. Terribly inefficient with > >> >> memory and fragmentation on high I/O loads but it may be good enough > >> >> for basic usage (which most non-mmu architectures will need). > >> > > >> > Can you please explain why you want to use XFS on low end, basic > >> > non-MMU devices? XFS is a high performance, enterprise/HPC level > >> > filesystem - it's not a filesystem designed for small IoT level > >> > devices - so I'm struggling to see why we'd want to expend any > >> > effort to make XFS work on such devices.... > >> > >> The use case is the Linux Kernel Library: > >> https://lkml.org/lkml/2015/11/3/706 > >> > >> Using LKL and fuse you can mount any kernel filesystem using fuse > >> as non-root. > > > > IOWs, because we said no to unprivileged mounts, instead the > > proposal is to linking all the kernel code into userspace so you can > > do unprivielged mounts that way? > > > > LKL's goal is to make it easy for various applications to reuse Linux > kernel code instead of re-implementing it. Mounting filesystem images > is just one of the applications. > > > IOWs, you get to say "it secure because it's in userspace" and leave > > us filesystem people with all the shit that comes with allowing > > users to mount random untrusted filesystem images using code that > > was never designed to allow that to happen? > > > > It is already possible to mount arbitrary filesystem images in > userspace using VMs . LKL doesn't change that, it just reduces the > amount of dependencies you need to do so. > Perhaps a dumb question, but I'm not quite putting 2+2 together here. When I see nommu, I'm generally thinking hardware characteristics, but we're talking about a userspace kernel library here. So can you elaborate on how this relates to nommu? Does this library emulate kernel mechanisms in userspace via nommu mode or something of that nature? Thanks. Brian > Could you expand of what burden does this use-case put on fs > developers? I am sure that, if needed, we can put restrictions in LKL > to avoid that. > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From octavian.purdila@intel.com Fri Nov 20 09:32:03 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C881D7F37 for ; Fri, 20 Nov 2015 09:32:03 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9558E30405F for ; Fri, 20 Nov 2015 07:32:03 -0800 (PST) X-ASG-Debug-ID: 1448033520-04cb6c0cd314eac0001-NocioJ Received: from mail-wm0-f49.google.com (mail-wm0-f49.google.com [74.125.82.49]) by cuda.sgi.com with ESMTP id f5FOfFwgwEHucGRe (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 20 Nov 2015 07:32:01 -0800 (PST) X-Barracuda-Envelope-From: octavian.purdila@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.49 Received: by wmww144 with SMTP id w144so25669738wmw.0 for ; Fri, 20 Nov 2015 07:32:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=TliNidH8cI6fhiXWncEiKqKHtTBEwS6G70B1Of932+A=; b=xYZMFKAxFIK4Pw6eX+RKDwUkTCNN6ndG273veRPenr2I06AdB8o2Jcj9OVe7Xvpvb9 83cO5r825TDXrn4J+Jhnoho7tMl2tWoAM39rNeEofLp5xXFKSNgabsiPTGPeEB+nJl+B l8ozKni92SLnrAi8mJt1L+LxKMsP997c+kZU/PuNwH035lMMdFw+SuxR+mGD/vhSD16K GqS1Qc+lpWMY3rNf2tnScdDXBaDVJcop87fL2tl/Q/wYE1hiiHtGLfRAMkZlklyQ49MU N8Miwwa5TGR1Q0GZhBhU9btIypHQ/v0dM8Hf1hwowTS7+h2bEi4q7U0okXS4ssJDUedj zpRA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=TliNidH8cI6fhiXWncEiKqKHtTBEwS6G70B1Of932+A=; b=FXNHQGjYnTZyijUSoTcJwpRX9NQqnmf0zdtvD7XOM7KyICugDWiu3306Yr6bXEbbiT r0hGAWyoek4jRpz/l1s4gXXhh6lZsSKTJI79OsWbpi6kX+ZOr6GVr7Nch7l+/zEyxbGs p3KgTVbArm/6M2YZn2lJVj3QmUpOJrstN67babhr97RgmKKN40MuWnziGPyPaZXV8gNl 6+86C5JAkmBvyRSQLK8PYX9pFC6t6Olvkejn512zaHsozo/W0KcXPtJKjcIrNS1Z6Aot wf9EZpE7yoPHqRkKJDLf4OcZdQTmkxtWi1Hztk6sPi2MgNAeYr8RJkJ1gAy8sP/9ecaA gR8A== X-Gm-Message-State: ALoCoQk9crxz2kjmydkeUnW6PBO0yMgUXgC5mibZ9DdboDrqOEU/BcUHVUSWg6AtVQ34I2Tcwlaj MIME-Version: 1.0 X-Received: by 10.194.87.39 with SMTP id u7mr15424907wjz.11.1448033519976; Fri, 20 Nov 2015 07:31:59 -0800 (PST) Received: by 10.194.106.131 with HTTP; Fri, 20 Nov 2015 07:31:59 -0800 (PST) In-Reply-To: <20151120152412.GC60886@bfoster.bfoster> References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> <20151120005843.GP14311@dastard> <20151120152412.GC60886@bfoster.bfoster> Date: Fri, 20 Nov 2015 17:31:59 +0200 Message-ID: Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures From: Octavian Purdila X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures To: Brian Foster Cc: Dave Chinner , Richard Weinberger , linux-fsdevel , LKML , xfs Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f49.google.com[74.125.82.49] X-Barracuda-Start-Time: 1448033520 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24567 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Nov 20, 2015 at 5:24 PM, Brian Foster wrote: > On Fri, Nov 20, 2015 at 04:26:28PM +0200, Octavian Purdila wrote: >> On Fri, Nov 20, 2015 at 2:58 AM, Dave Chinner wrote: >> > On Fri, Nov 20, 2015 at 12:54:02AM +0100, Richard Weinberger wrote: >> >> On Fri, Nov 20, 2015 at 12:24 AM, Dave Chinner wrote: >> >> > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: >> >> >> Naive implementation for non-mmu architectures: allocate physically >> >> >> contiguous xfs buffers with alloc_pages. Terribly inefficient with >> >> >> memory and fragmentation on high I/O loads but it may be good enough >> >> >> for basic usage (which most non-mmu architectures will need). >> >> > >> >> > Can you please explain why you want to use XFS on low end, basic >> >> > non-MMU devices? XFS is a high performance, enterprise/HPC level >> >> > filesystem - it's not a filesystem designed for small IoT level >> >> > devices - so I'm struggling to see why we'd want to expend any >> >> > effort to make XFS work on such devices.... >> >> >> >> The use case is the Linux Kernel Library: >> >> https://lkml.org/lkml/2015/11/3/706 >> >> >> >> Using LKL and fuse you can mount any kernel filesystem using fuse >> >> as non-root. >> > >> > IOWs, because we said no to unprivileged mounts, instead the >> > proposal is to linking all the kernel code into userspace so you can >> > do unprivielged mounts that way? >> > >> >> LKL's goal is to make it easy for various applications to reuse Linux >> kernel code instead of re-implementing it. Mounting filesystem images >> is just one of the applications. >> >> > IOWs, you get to say "it secure because it's in userspace" and leave >> > us filesystem people with all the shit that comes with allowing >> > users to mount random untrusted filesystem images using code that >> > was never designed to allow that to happen? >> > >> >> It is already possible to mount arbitrary filesystem images in >> userspace using VMs . LKL doesn't change that, it just reduces the >> amount of dependencies you need to do so. >> > > Perhaps a dumb question, but I'm not quite putting 2+2 together here. > When I see nommu, I'm generally thinking hardware characteristics, but > we're talking about a userspace kernel library here. So can you > elaborate on how this relates to nommu? Does this library emulate kernel > mechanisms in userspace via nommu mode or something of that nature? > LKL is currently implemented as a virtual non-mmu architecture. That makes it simpler and it will also allow us to support environments where it is not possible to emulate paging (e.g. bootloaders). From octavian.purdila@intel.com Fri Nov 20 09:35:59 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 171AE7F37 for ; Fri, 20 Nov 2015 09:35:59 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id E97098F804B for ; Fri, 20 Nov 2015 07:35:58 -0800 (PST) X-ASG-Debug-ID: 1448033756-04cbb0605c1900b0001-NocioJ Received: from mail-wm0-f52.google.com (mail-wm0-f52.google.com [74.125.82.52]) by cuda.sgi.com with ESMTP id zr6W9INDS1XoAmFH (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 20 Nov 2015 07:35:57 -0800 (PST) X-Barracuda-Envelope-From: octavian.purdila@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.52 Received: by wmec201 with SMTP id c201so77295523wme.0 for ; Fri, 20 Nov 2015 07:35:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=ym6wn1GunKtARNzalaldTqfC3YbZv7VO1Wdh4HZ171s=; b=FsK4nJXG8bUgXZdpT+BFoHGqgQp+bC8M49b/F9LHZivLgkxTpXtOCbt2sl6HgMeQIc vY/yuG164OUTvI6rqTAaT8qMUPfVJRc43fmCWMfBOMVw1AUmfM7cCDqVPKyiW5kWY9Nn 1J3lPHbvj/xeObE1qc7EiCpvLweq2KJKoHy7IB2irLvrTwVHZIqN049ln1MX42xB1gX4 E3/imVKkdIfEtqKXLOA6F/rVb9+uwa69cWoeWC8hLB9g5E16LXBWF+E7aTl1OOYDnz67 6kOCkA3cPfkbNC7YH9EpztDkgiVJDyQghkx9Vw4v89f9o7/HfHqLpv2zdfwj/FiwF1xr WJEw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=ym6wn1GunKtARNzalaldTqfC3YbZv7VO1Wdh4HZ171s=; b=F4BqBrdp0upE7LIEa9BP7luuGhDrjtWzp9sQGuO9e+N1Qp85GWIAyfk0uG5WteiM+P dd+BviNM1rJdI4dz66Z+yX8UxAfjereKcx1bugL4isf6xqwu8tWx34JFgmpFtJ7fM5HI GUr6qhnmqgem025SmSzJW2I2I+mKRwY95yfNMiNgaJU+SpCvObfuW9f+07fHB7Oljv8F sBn8su6xPDcUGZcmvY7JDtVCHJuZULpxjvOMtYBgJNUPBUACm6zKENKwRpq7IW2Z9IcS viv/gocbIe4AFe4XVl8J2QrirJW2B8r+CnxNTJX5qNSI5i+kjars1s3e26FYZPTXHv9i S3GA== X-Gm-Message-State: ALoCoQlsN4iWAhy46aOazd7scgxJi501qxoHrod+tvfeYzR3qn2Lm/gyDbPWSoUmDvGaTj36Lwzy MIME-Version: 1.0 X-Received: by 10.28.72.136 with SMTP id v130mr3106989wma.60.1448033755959; Fri, 20 Nov 2015 07:35:55 -0800 (PST) Received: by 10.194.106.131 with HTTP; Fri, 20 Nov 2015 07:35:55 -0800 (PST) In-Reply-To: <20151120151118.GB60886@bfoster.bfoster> References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119155525.GB13055@bfoster.bfoster> <20151119233547.GN14311@dastard> <20151120151118.GB60886@bfoster.bfoster> Date: Fri, 20 Nov 2015 17:35:55 +0200 Message-ID: Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures From: Octavian Purdila X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures To: Brian Foster Cc: Dave Chinner , linux-fsdevel , lkml , xfs Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f52.google.com[74.125.82.52] X-Barracuda-Start-Time: 1448033756 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24567 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Nov 20, 2015 at 5:11 PM, Brian Foster wrote: > On Fri, Nov 20, 2015 at 10:35:47AM +1100, Dave Chinner wrote: >> On Thu, Nov 19, 2015 at 10:55:25AM -0500, Brian Foster wrote: >> > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: >> > > Naive implementation for non-mmu architectures: allocate physically >> > > contiguous xfs buffers with alloc_pages. Terribly inefficient with >> > > memory and fragmentation on high I/O loads but it may be good enough >> > > for basic usage (which most non-mmu architectures will need). >> > > >> > > This patch was tested with lklfuse [1] and basic operations seems to >> > > work even with 16MB allocated for LKL. >> > > >> > > [1] https://github.com/lkl/linux >> > > >> > > Signed-off-by: Octavian Purdila >> > > --- >> > >> > Interesting, though this makes me wonder why we couldn't have a new >> > _XBF_VMEM (for example) buffer type that uses vmalloc(). I'm not >> > familiar with mmu-less context, but I see that mm/nommu.c has a >> > __vmalloc() interface that looks like it ultimately translates into an >> > alloc_pages() call. Would that accomplish what this patch is currently >> > trying to do? >> >> vmalloc is always a last resort. vmalloc space on 32 bit systems is >> extremely limited and it is easy to exhaust with XFS. >> > > Sure, but my impression is that a vmalloc() buffer is roughly equivalent > in this regard to a current !XBF_UNMAPPED && size > PAGE_SIZE buffer. We > just do the allocation and mapping separately (presumably for other > reasons). > >> Also, vmalloc limits the control we have over allocation context >> (e.g. the hoops we jump through in kmem_alloc_large() to maintain >> GFP_NOFS contexts), so just using vmalloc doesn't make things much >> simpler from an XFS perspective. >> > > The comment in kmem_zalloc_large() calls out some apparent hardcoded > allocation flags down in the depths of vmalloc(). It looks to me that > page allocation (__vmalloc_area_node()) actually uses the provided > flags, so I'm not following the "data page" part of that comment. > Indeed, I do see that this is not the case down in calls like > pmd_alloc_one(), pte_alloc_one_kernel(), etc., associated with page > table management. > > Those latter calls are all from following down through the > map_vm_area()->vmap_page_range() codepath from __vmalloc_area_node(). We > call vm_map_ram() directly from _xfs_buf_map_pages(), which itself calls > down into the same code. Indeed, we already protect ourselves here via > the same memalloc_noio_save() mechanism that kmem_zalloc_large() uses. > > I suspect there's more to it than that because it does look like > vm_map_ram() has a different mechanism for managing vmalloc space for > certain (smaller) allocations, either of which I'm not really familiar > with. That aside, I don't see how vmalloc() introduces any new > allocation context issues for those buffers where we already set up a > multi-page mapping. > > We still have the somewhat customized page allocation code in > xfs_buf_allocate_memory() to contend with. I actually think it would be > useful to have a DEBUG sysfs tunable to turn on vmalloc() buffers and > actually test how effective some of this code is. > >> > I ask because it seems like that would help clean up the code a bit, for >> > one. It might also facilitate some degree of testing of the XFS bits >> > (even if utilized sparingly in DEBUG mode if it weren't suitable enough >> > for generic/mmu use). We currently allocate and map the buffer pages >> > separately and I'm not sure if there's any particular reasons for doing >> > that outside of some congestion handling in the allocation code and >> > XBF_UNMAPPED buffers, the latter probably being irrelevant for nommu. >> > Any other thoughts on that? >> >> We could probably clean the code up more (the allocation logic >> is now largely a historic relic) but I'm not convinced yet that we >> should be spending any time trying to specifically support mmu-less >> hardware. >> > > Fair point, we'll see where the use case discussion goes. That said, I > was a little surprised that this is all that was required to enable > nommu support. If that is indeed the case and we aren't in for a series > of subsequent nommu specific changes (Octavian?) by letting this > through, what's the big deal? This seems fairly harmless to me as is, > particularly if it can be semi-tested via DEBUG mode and has potential > generic use down the road. > I don't foresee additional patches. I was able to use lklfuse to mount an XFS image and perform basic operations. Are there any xfs specific tests coverage tools I can use to make sure I am not missing anything? From bfoster@redhat.com Fri Nov 20 09:40:25 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 3B0F97F37 for ; Fri, 20 Nov 2015 09:40:25 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id A83E0AC002 for ; Fri, 20 Nov 2015 07:40:24 -0800 (PST) X-ASG-Debug-ID: 1448034021-04cbb0605d190260001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ChiE01ANC275CP37 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 20 Nov 2015 07:40:22 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id CA2D419CBB0; Fri, 20 Nov 2015 15:40:21 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAKFeLKZ007323; Fri, 20 Nov 2015 10:40:21 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 62FC6122406; Fri, 20 Nov 2015 10:40:20 -0500 (EST) Date: Fri, 20 Nov 2015 10:40:20 -0500 From: Brian Foster To: Octavian Purdila Cc: linux-fsdevel , lkml , xfs Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151120154020.GD60886@bfoster.bfoster> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119155525.GB13055@bfoster.bfoster> <20151119233547.GN14311@dastard> <20151120151118.GB60886@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448034022 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Nov 20, 2015 at 05:35:55PM +0200, Octavian Purdila wrote: > On Fri, Nov 20, 2015 at 5:11 PM, Brian Foster wrote: > > On Fri, Nov 20, 2015 at 10:35:47AM +1100, Dave Chinner wrote: > >> On Thu, Nov 19, 2015 at 10:55:25AM -0500, Brian Foster wrote: > >> > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > >> > > Naive implementation for non-mmu architectures: allocate physically > >> > > contiguous xfs buffers with alloc_pages. Terribly inefficient with > >> > > memory and fragmentation on high I/O loads but it may be good enough > >> > > for basic usage (which most non-mmu architectures will need). > >> > > > >> > > This patch was tested with lklfuse [1] and basic operations seems to > >> > > work even with 16MB allocated for LKL. > >> > > > >> > > [1] https://github.com/lkl/linux > >> > > > >> > > Signed-off-by: Octavian Purdila > >> > > --- > >> > > >> > Interesting, though this makes me wonder why we couldn't have a new > >> > _XBF_VMEM (for example) buffer type that uses vmalloc(). I'm not > >> > familiar with mmu-less context, but I see that mm/nommu.c has a > >> > __vmalloc() interface that looks like it ultimately translates into an > >> > alloc_pages() call. Would that accomplish what this patch is currently > >> > trying to do? > >> > >> vmalloc is always a last resort. vmalloc space on 32 bit systems is > >> extremely limited and it is easy to exhaust with XFS. > >> > > > > Sure, but my impression is that a vmalloc() buffer is roughly equivalent > > in this regard to a current !XBF_UNMAPPED && size > PAGE_SIZE buffer. We > > just do the allocation and mapping separately (presumably for other > > reasons). > > > >> Also, vmalloc limits the control we have over allocation context > >> (e.g. the hoops we jump through in kmem_alloc_large() to maintain > >> GFP_NOFS contexts), so just using vmalloc doesn't make things much > >> simpler from an XFS perspective. > >> > > > > The comment in kmem_zalloc_large() calls out some apparent hardcoded > > allocation flags down in the depths of vmalloc(). It looks to me that > > page allocation (__vmalloc_area_node()) actually uses the provided > > flags, so I'm not following the "data page" part of that comment. > > Indeed, I do see that this is not the case down in calls like > > pmd_alloc_one(), pte_alloc_one_kernel(), etc., associated with page > > table management. > > > > Those latter calls are all from following down through the > > map_vm_area()->vmap_page_range() codepath from __vmalloc_area_node(). We > > call vm_map_ram() directly from _xfs_buf_map_pages(), which itself calls > > down into the same code. Indeed, we already protect ourselves here via > > the same memalloc_noio_save() mechanism that kmem_zalloc_large() uses. > > > > I suspect there's more to it than that because it does look like > > vm_map_ram() has a different mechanism for managing vmalloc space for > > certain (smaller) allocations, either of which I'm not really familiar > > with. That aside, I don't see how vmalloc() introduces any new > > allocation context issues for those buffers where we already set up a > > multi-page mapping. > > > > We still have the somewhat customized page allocation code in > > xfs_buf_allocate_memory() to contend with. I actually think it would be > > useful to have a DEBUG sysfs tunable to turn on vmalloc() buffers and > > actually test how effective some of this code is. > > > >> > I ask because it seems like that would help clean up the code a bit, for > >> > one. It might also facilitate some degree of testing of the XFS bits > >> > (even if utilized sparingly in DEBUG mode if it weren't suitable enough > >> > for generic/mmu use). We currently allocate and map the buffer pages > >> > separately and I'm not sure if there's any particular reasons for doing > >> > that outside of some congestion handling in the allocation code and > >> > XBF_UNMAPPED buffers, the latter probably being irrelevant for nommu. > >> > Any other thoughts on that? > >> > >> We could probably clean the code up more (the allocation logic > >> is now largely a historic relic) but I'm not convinced yet that we > >> should be spending any time trying to specifically support mmu-less > >> hardware. > >> > > > > Fair point, we'll see where the use case discussion goes. That said, I > > was a little surprised that this is all that was required to enable > > nommu support. If that is indeed the case and we aren't in for a series > > of subsequent nommu specific changes (Octavian?) by letting this > > through, what's the big deal? This seems fairly harmless to me as is, > > particularly if it can be semi-tested via DEBUG mode and has potential > > generic use down the road. > > > > I don't foresee additional patches. I was able to use lklfuse to mount > an XFS image and perform basic operations. Are there any xfs specific > tests coverage tools I can use to make sure I am not missing anything? > Ok, well you probably want to run some of the tests in xfstests and see if anything falls over: https://git.kernel.org/cgit/fs/xfs/xfstests-dev.git/ Note that this has generic as well as fs-specific tests for other filesystems (ext4, btrfs, etc.). Brian > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Nov 20 09:43:39 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5FD5E7F3F for ; Fri, 20 Nov 2015 09:43:39 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 49C378F8049 for ; Fri, 20 Nov 2015 07:43:39 -0800 (PST) X-ASG-Debug-ID: 1448034217-04cbb0605c190370001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id BkprBX4Vb84E5gc0 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 20 Nov 2015 07:43:38 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id C1DAB96C1; Fri, 20 Nov 2015 15:43:37 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAKFhbYu003624; Fri, 20 Nov 2015 10:43:37 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 6B7B1122406; Fri, 20 Nov 2015 10:43:36 -0500 (EST) Date: Fri, 20 Nov 2015 10:43:36 -0500 From: Brian Foster To: Octavian Purdila Cc: Richard Weinberger , linux-fsdevel , LKML , xfs Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151120154336.GE60886@bfoster.bfoster> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> <20151120005843.GP14311@dastard> <20151120152412.GC60886@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448034218 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Nov 20, 2015 at 05:31:59PM +0200, Octavian Purdila wrote: > On Fri, Nov 20, 2015 at 5:24 PM, Brian Foster wrote: > > On Fri, Nov 20, 2015 at 04:26:28PM +0200, Octavian Purdila wrote: > >> On Fri, Nov 20, 2015 at 2:58 AM, Dave Chinner wrote: > >> > On Fri, Nov 20, 2015 at 12:54:02AM +0100, Richard Weinberger wrote: > >> >> On Fri, Nov 20, 2015 at 12:24 AM, Dave Chinner wrote: > >> >> > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > >> >> >> Naive implementation for non-mmu architectures: allocate physically > >> >> >> contiguous xfs buffers with alloc_pages. Terribly inefficient with > >> >> >> memory and fragmentation on high I/O loads but it may be good enough > >> >> >> for basic usage (which most non-mmu architectures will need). > >> >> > > >> >> > Can you please explain why you want to use XFS on low end, basic > >> >> > non-MMU devices? XFS is a high performance, enterprise/HPC level > >> >> > filesystem - it's not a filesystem designed for small IoT level > >> >> > devices - so I'm struggling to see why we'd want to expend any > >> >> > effort to make XFS work on such devices.... > >> >> > >> >> The use case is the Linux Kernel Library: > >> >> https://lkml.org/lkml/2015/11/3/706 > >> >> > >> >> Using LKL and fuse you can mount any kernel filesystem using fuse > >> >> as non-root. > >> > > >> > IOWs, because we said no to unprivileged mounts, instead the > >> > proposal is to linking all the kernel code into userspace so you can > >> > do unprivielged mounts that way? > >> > > >> > >> LKL's goal is to make it easy for various applications to reuse Linux > >> kernel code instead of re-implementing it. Mounting filesystem images > >> is just one of the applications. > >> > >> > IOWs, you get to say "it secure because it's in userspace" and leave > >> > us filesystem people with all the shit that comes with allowing > >> > users to mount random untrusted filesystem images using code that > >> > was never designed to allow that to happen? > >> > > >> > >> It is already possible to mount arbitrary filesystem images in > >> userspace using VMs . LKL doesn't change that, it just reduces the > >> amount of dependencies you need to do so. > >> > > > > Perhaps a dumb question, but I'm not quite putting 2+2 together here. > > When I see nommu, I'm generally thinking hardware characteristics, but > > we're talking about a userspace kernel library here. So can you > > elaborate on how this relates to nommu? Does this library emulate kernel > > mechanisms in userspace via nommu mode or something of that nature? > > > > LKL is currently implemented as a virtual non-mmu architecture. That > makes it simpler and it will also allow us to support environments > where it is not possible to emulate paging (e.g. bootloaders). > Ok, so we aren't necessarily talking about running on typically limited, mmu-less hardware. Thanks! Brian > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From tytso@thunk.org Fri Nov 20 14:07:49 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 03D7A7F37 for ; Fri, 20 Nov 2015 14:07:49 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id E8015304062 for ; Fri, 20 Nov 2015 12:07:45 -0800 (PST) X-ASG-Debug-ID: 1448050062-04cb6c0cd1154260001-NocioJ Received: from imap.thunk.org (imap.thunk.org [74.207.234.97]) by cuda.sgi.com with ESMTP id 3nxZMCRVwYlNVTh3 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 20 Nov 2015 12:07:42 -0800 (PST) X-Barracuda-Envelope-From: tytso@thunk.org X-Barracuda-Apparent-Source-IP: 74.207.234.97 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=thunk.org; s=ef5046eb; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date; bh=4GVt8DXesB/DWYJXB3XUV9QOMSFXAEYaBVa8zNUTwuc=; b=OKSvBS/uzwaPOipMdryslFFQJwd7Exg1jYeZxFOtGnnvmXG44MoD2u307OXuTEDes+H2vvz46TNnagbOR78xqLWCE1FmtgPbhcvoOvcco0wQmpUmm8YvTo647tan64c3/1e+ru00Pa656APNv2I3qJT9pZwVzzOLOXsk4Dp8Jwg=; Received: from root (helo=closure.thunk.org) by imap.thunk.org with local-esmtp (Exim 4.84) (envelope-from ) id 1Zzry5-0002Ud-JZ; Fri, 20 Nov 2015 20:07:37 +0000 Received: by closure.thunk.org (Postfix, from userid 15806) id E677F82DE99; Fri, 20 Nov 2015 15:07:33 -0500 (EST) Date: Fri, 20 Nov 2015 15:07:33 -0500 From: Theodore Ts'o To: Octavian Purdila Cc: Dave Chinner , Richard Weinberger , xfs , linux-fsdevel , LKML Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151120200733.GA350@thunk.org> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures Mail-Followup-To: Theodore Ts'o , Octavian Purdila , Dave Chinner , Richard Weinberger , xfs , linux-fsdevel , LKML References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> <20151120005843.GP14311@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@thunk.org X-SA-Exim-Scanned: No (on imap.thunk.org); SAEximRunCond expanded to false X-Barracuda-Connect: imap.thunk.org[74.207.234.97] X-Barracuda-Start-Time: 1448050062 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24573 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Nov 20, 2015 at 04:26:28PM +0200, Octavian Purdila wrote: > It is already possible to mount arbitrary filesystem images in > userspace using VMs . LKL doesn't change that, it just reduces the > amount of dependencies you need to do so. It is true that you can mount arbitrary file systems in userspace using VM's. But those the kvm binary is typically not run with root privileges in the host OS --- at least, not if the system administrator is smart. So a root compromise does not cause a catastrophic security vulnerability, and if the guest OS crashes --- again, not a real problem. In the caase where people are trying to claim that containers are just as secure as VM's, and plan to give container "guest" system administrators root-like powers, the question which immediately comes to mind is whether the LKML/fuse daemon is running inside or outside the container. If it is outside the container, the a potential security compromise of the binary running binary will be catastrophic to the overall security of the host system and all of its containers. If it is inside the container, you will be partially breaking the illusion that the container works just like a VM (since a user runinng "ps" will see all of these mysterious userspace processes that could be killed, etc.), but it significantly reduces the security problems if a maliciously crafted (or maliciously modulated) block device is mounted. > Could you expand of what burden does this use-case put on fs > developers? I am sure that, if needed, we can put restrictions in LKL > to avoid that. The bottom line is who is going to get all of the support calls and nasty e-mails explaining how our "crappy" code has caused some silly container VM system administrator's customers $$$ worth of losses. As long as we can make sure that it's been underlined that the code is being used well outside of its intended scope, and if it breaks, the user gets to keep both pieces, and all complaints, threatened lawsuits, etc. should go to the LKL maintainers or the purveyors of said container-based products, I suppose that should be OK. :-) - Ted From david@fromorbit.com Fri Nov 20 14:36:26 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BADB97F37 for ; Fri, 20 Nov 2015 14:36:26 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 29557AC004 for ; Fri, 20 Nov 2015 12:36:22 -0800 (PST) X-ASG-Debug-ID: 1448051779-04cb6c0cd1154a60001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id D4ZJVna6Ea8R07MZ for ; Fri, 20 Nov 2015 12:36:19 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BeCAAOg09WPALtLHleKAECgxBTb4JfqSABAQEBAQEGiz2FLoQNHYVsAgIBAQKBR00BAQEBAQEHAQEBAUABP4Q0AQEBAwEnExwjBQsIAw4KCSUPBSUDBxoTiCYHwQMBAQEBAQUBAQEBGwQZhXSFRYJxgUODcIEVBZJqg2KFI4gDnFWEeyo0g2GBSgEBAQ Received: from ppp121-44-237-2.lns20.syd7.internode.on.net (HELO dastard) ([121.44.237.2]) by ipmail06.adl2.internode.on.net with ESMTP; 21 Nov 2015 07:06:03 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1ZzsPa-0000ZB-Nd; Sat, 21 Nov 2015 07:36:02 +1100 Date: Sat, 21 Nov 2015 07:36:02 +1100 From: Dave Chinner To: Brian Foster Cc: linux-fsdevel@vger.kernel.org, Octavian Purdila , linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151120203602.GA26718@dastard> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119155525.GB13055@bfoster.bfoster> <20151119233547.GN14311@dastard> <20151120151118.GB60886@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151120151118.GB60886@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1448051779 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24575 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Nov 20, 2015 at 10:11:19AM -0500, Brian Foster wrote: > On Fri, Nov 20, 2015 at 10:35:47AM +1100, Dave Chinner wrote: > > On Thu, Nov 19, 2015 at 10:55:25AM -0500, Brian Foster wrote: > > > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > > > > Naive implementation for non-mmu architectures: allocate physically > > > > contiguous xfs buffers with alloc_pages. Terribly inefficient with > > > > memory and fragmentation on high I/O loads but it may be good enough > > > > for basic usage (which most non-mmu architectures will need). > > > > > > > > This patch was tested with lklfuse [1] and basic operations seems to > > > > work even with 16MB allocated for LKL. > > > > > > > > [1] https://github.com/lkl/linux > > > > > > > > Signed-off-by: Octavian Purdila > > > > --- > > > > > > Interesting, though this makes me wonder why we couldn't have a new > > > _XBF_VMEM (for example) buffer type that uses vmalloc(). I'm not > > > familiar with mmu-less context, but I see that mm/nommu.c has a > > > __vmalloc() interface that looks like it ultimately translates into an > > > alloc_pages() call. Would that accomplish what this patch is currently > > > trying to do? > > > > vmalloc is always a last resort. vmalloc space on 32 bit systems is > > extremely limited and it is easy to exhaust with XFS. > > > > Sure, but my impression is that a vmalloc() buffer is roughly equivalent > in this regard to a current !XBF_UNMAPPED && size > PAGE_SIZE buffer. We > just do the allocation and mapping separately (presumably for other > reasons). Yes, it'a always a last resort. We don't use vmap'd buffers very much on block size <= page size filesystems (e.g. iclog buffers are the main user in such cases, IIRC), so the typical 32 bit system doesn't have major problems with vmalloc space. However, the moment you increase the directory block size > block size, that all goes out the window... > > Also, vmalloc limits the control we have over allocation context > > (e.g. the hoops we jump through in kmem_alloc_large() to maintain > > GFP_NOFS contexts), so just using vmalloc doesn't make things much > > simpler from an XFS perspective. > > > > The comment in kmem_zalloc_large() calls out some apparent hardcoded > allocation flags down in the depths of vmalloc(). It looks to me that > page allocation (__vmalloc_area_node()) actually uses the provided > flags, so I'm not following the "data page" part of that comment. You can pass gfp flags for the page allocation part of vmalloc, but not the pte allocation part of it. That's what the hacks in kmem_zalloc_large() are doing. > Indeed, I do see that this is not the case down in calls like > pmd_alloc_one(), pte_alloc_one_kernel(), etc., associated with page > table management. Right. > Those latter calls are all from following down through the > map_vm_area()->vmap_page_range() codepath from __vmalloc_area_node(). We > call vm_map_ram() directly from _xfs_buf_map_pages(), which itself calls > down into the same code. Indeed, we already protect ourselves here via > the same memalloc_noio_save() mechanism that kmem_zalloc_large() uses. Yes, we do, but that is separately handled to the allocation of the pages, which we have to do for all types of buffers, mapped or unmapped, because xfs_buf_ioapply_map() requires direct access to the underlying pages to build the bio for IO. If we delegate the allocation of pages to vmalloc, we don't have direct reference to the underlying pages and so we have to do something completely diffferent to build the bios for the buffer.... > I suspect there's more to it than that because it does look like > vm_map_ram() has a different mechanism for managing vmalloc space for > certain (smaller) allocations, either of which I'm not really familiar > with. Yes, it manages vmalloc space quite differently, and there are different scalability aspects to consider as well - vm_map_ram was pretty much written for the use XFS has in xfs_buf.c... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Nov 20 15:09:11 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2E12F7F37 for ; Fri, 20 Nov 2015 15:09:11 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 119F7304066 for ; Fri, 20 Nov 2015 13:09:07 -0800 (PST) X-ASG-Debug-ID: 1448053744-04cb6c0cd21551b0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id NodwfwrteL48zDzY for ; Fri, 20 Nov 2015 13:09:04 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 Received: from ppp121-44-237-2.lns20.syd7.internode.on.net (HELO dastard) ([121.44.237.2]) by ipmail06.adl2.internode.on.net with ESMTP; 21 Nov 2015 07:38:34 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1Zzsv3-0000gA-49; Sat, 21 Nov 2015 08:08:33 +1100 Date: Sat, 21 Nov 2015 08:08:33 +1100 From: Dave Chinner To: Octavian Purdila Cc: xfs@oss.sgi.com, linux-fsdevel , lkml Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151120210833.GB26718@dastard> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1448053744 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24576 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Nov 20, 2015 at 03:43:20PM +0200, Octavian Purdila wrote: > On Fri, Nov 20, 2015 at 1:24 AM, Dave Chinner wrote: > > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > >> Naive implementation for non-mmu architectures: allocate physically > >> contiguous xfs buffers with alloc_pages. Terribly inefficient with > >> memory and fragmentation on high I/O loads but it may be good enough > >> for basic usage (which most non-mmu architectures will need). > > > > Can you please explain why you want to use XFS on low end, basic > > non-MMU devices? XFS is a high performance, enterprise/HPC level > > filesystem - it's not a filesystem designed for small IoT level > > devices - so I'm struggling to see why we'd want to expend any > > effort to make XFS work on such devices.... > > > > Hi David, > > Yes XFS as the main fs on this type of devices does not make sense, > but does it hurt to be able to perform basic operation on XFS from > these devices? Perhaps accessing an external medium formatted with > XFS? > > Another example is accessing VM images that are formatted with XFS. > Currently we can do that with tools like libguestfs that use a VM in > the background. I am working on a lighter solution for that where we > compile the Linux kernel as a library [1]. This allows access to the > filesystem without the need to use a full VM. That's hardly a "lighter solution". I'm kinda tired of the ongoing "hack random shit" approach to container development. If you need a XFS-FUSE module to allow safe userspace access to XFS fielsystems then maybe, just maybe, it makes sense to ask the XFS developers how to best go about providing a reliable, up-to-date, tested, maintained and supported XFS-FUSE module? IOWs, a "lighter solution" is to use the libxfs code base that we already maintain across kernel and userspace in the xfsprogs package and write a FUSE wrapper around that. That, immediately, will give you full read-only access to XFS filesystem images via FUSE. Then we (the XFS developers) can test the XFS-FUSE module under normal development conditions as we modify the xfsprogs code base (e.g. via xfstests) and ensure we always release a working, up-to-date FUSE wrapper with each xfsprogs release. And then once a proper read-only FUSE wrapper has been written, then we can discuss what is necessary to enable write access via porting the necessary parts of the kernel code across to the userspace libxfs codebase and hooking them up to the FUSE API... Hmmm? > And a final example is linking the bootloader code with LKL to access > the filesystem. This has a hard requirement on non-mmu. No way. We *can't* support filesystems that have had bootloaders make arbitrary changes to the filesystem without the knowlege of the OS that *owns the filesystem*. Similarly, we cannot support random applications that internally mount and modify filesystem images in ways we can't see, control, test or simulate. Sure, they use the kernel code, but that doesn't stop them from doing stupid shit that could corrupt the filesystem image. So, no, we are not going to support giving random applications direct access to XFS filesystem images, even via LKL. > So, IMHO there are usecases for using XFS on non-mmu architectures. I > think it all boils down to: is the patch simple enough to not put an > unreasonable maintenance burden on developers? Look at it this way: a user tries to mount their XFS-on-LKL-on-FUSE, XFS throughs a memory allocation deadlock warning because of a high order allocation during mount failing (i.e. due to the vmalloc no-mmu hacks). Who has to spend effort to find out why the error is being thrown? It's not the FUSE developers. It's not the LKL developers. XFS is going to be blamed, because it's an XFS error message, and it will be up to the XFS developers to /prove/ that it's not an XFS problem. And then google will find these complaints about XFS causing all sorts of problems, and we're back to the bad old days of everyone blaming XFS for shortcomings and problems in other code we have no control over.. I really don't see how using LKL to give userspace access to XFS filesystems is a better solution than actually writing a proper, supported XFS-FUSE module. LKL is so full of compromises that it's going to be unworkable and unsupportable in practice... Cheers, Dave. -- Dave Chinner david@fromorbit.com From octavian.purdila@intel.com Fri Nov 20 16:26:54 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D07247F37 for ; Fri, 20 Nov 2015 16:26:54 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id C415B304043 for ; Fri, 20 Nov 2015 14:26:51 -0800 (PST) X-ASG-Debug-ID: 1448058408-04cb6c0cd3156090001-NocioJ Received: from mail-wm0-f54.google.com (mail-wm0-f54.google.com [74.125.82.54]) by cuda.sgi.com with ESMTP id HCbKtM5hEL1M1lCR (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 20 Nov 2015 14:26:48 -0800 (PST) X-Barracuda-Envelope-From: octavian.purdila@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.54 Received: by wmvv187 with SMTP id v187so90982043wmv.1 for ; Fri, 20 Nov 2015 14:26:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=LnfeZXo5Z0/c5ULmnMi+uCEWjOhf1GNRg2vFJgIDZ60=; b=yEsDhhi+2wPquARVolGjVkcwtVUc0AmPR9zrwK94Gz+nmWgbaVvvybhhSxrKW2DcYm v/VhEtJPh4Qsp0LnZqD/aMVAOn6EiDf+pSVv1wSE/IOAFg2HOaUl9SjTDrE210TuCzUh Ic4hOtY425S90k2pt/bOfgR2z5BRF4mCIbtlXa/sZXQ4vMXQYll+seNCTNY1lAhwQVnP HjCRyCoTedyjOkyTR0l02RPMfe0sJkHgh8ZQcInFux5wqTSFvjW6vGfXSy5XCmjSxhJW +ImAFAUTKfzSvr5H8/x0sppGp6wuKuR/avMlYyPaCFhkkbTJX55/qbN74cGboTqg1Nzd XbvQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=LnfeZXo5Z0/c5ULmnMi+uCEWjOhf1GNRg2vFJgIDZ60=; b=JDwtCNq4iw+EtxzwZX8KKem7rYrdUsws9rvgkS0c/LM8vCoo77ZIQ+mhfF1Cfbiazt qX2SZjCnMCNEiQS3vRkK49pcLrAAF76qfXJCPCrTI//9+SvNHVCmon34lGdvVg1/W2k3 4YPn0FImwvnQFwI+Bg1593oECNoH3MuKmsvAhMoIh8hPJTKEdRWAF7YHrJkTUWBDVR5y M57onjhpEBmdgFZzJ0ZN/BizevEd/DykWl2weeLVm98Jga4DwnBKdCB8NhrkGoyAwUu3 Gl9j8+zStWDoMl7LEHn+hg3NB05YRE9Yg5cniC044YghUIlBWVsddufvvH+0Cl3UCVMI GSkA== X-Gm-Message-State: ALoCoQmgNZmZ8NFz8Dn+5tN3L4YvmFq1yxzC1aC7U/M/L9Z2N11qeEyoj2FjvDkBPZdKd6+X2Esw MIME-Version: 1.0 X-Received: by 10.194.59.108 with SMTP id y12mr16953314wjq.33.1448058407661; Fri, 20 Nov 2015 14:26:47 -0800 (PST) Received: by 10.194.106.131 with HTTP; Fri, 20 Nov 2015 14:26:47 -0800 (PST) In-Reply-To: <20151120210833.GB26718@dastard> References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> <20151120210833.GB26718@dastard> Date: Sat, 21 Nov 2015 00:26:47 +0200 Message-ID: Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures From: Octavian Purdila X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures To: Dave Chinner Cc: xfs , linux-fsdevel , lkml Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f54.google.com[74.125.82.54] X-Barracuda-Start-Time: 1448058408 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24578 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Nov 20, 2015 at 11:08 PM, Dave Chinner wrote: > On Fri, Nov 20, 2015 at 03:43:20PM +0200, Octavian Purdila wrote: >> On Fri, Nov 20, 2015 at 1:24 AM, Dave Chinner wrote: >> > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: >> >> Naive implementation for non-mmu architectures: allocate physically >> >> contiguous xfs buffers with alloc_pages. Terribly inefficient with >> >> memory and fragmentation on high I/O loads but it may be good enough >> >> for basic usage (which most non-mmu architectures will need). >> > >> > Can you please explain why you want to use XFS on low end, basic >> > non-MMU devices? XFS is a high performance, enterprise/HPC level >> > filesystem - it's not a filesystem designed for small IoT level >> > devices - so I'm struggling to see why we'd want to expend any >> > effort to make XFS work on such devices.... >> > >> >> Hi David, >> >> Yes XFS as the main fs on this type of devices does not make sense, >> but does it hurt to be able to perform basic operation on XFS from >> these devices? Perhaps accessing an external medium formatted with >> XFS? >> >> Another example is accessing VM images that are formatted with XFS. >> Currently we can do that with tools like libguestfs that use a VM in >> the background. I am working on a lighter solution for that where we >> compile the Linux kernel as a library [1]. This allows access to the >> filesystem without the need to use a full VM. > > That's hardly a "lighter solution" > > I'm kinda tired of the ongoing "hack random shit" approach to > container development. Since apparently there is a container devs hunting party going on right now, let me quickly confess that LKL has nothing to do with (them be damned) containers :) On a more serious note, LKL was not developed for containers or to try to circumvent privileged mounts. It was developed to allow the Linux kernel code to be reused in things like simple tools that allows one to modify a filesystem image. > If you need a XFS-FUSE module to allow safe > userspace access to XFS fielsystems then maybe, just maybe, it makes > sense to ask the XFS developers how to best go about providing a > reliable, up-to-date, tested, maintained and supported XFS-FUSE > module? > > IOWs, a "lighter solution" is to use the libxfs code base that we > already maintain across kernel and userspace in the xfsprogs package > and write a FUSE wrapper around that. That, immediately, will give > you full read-only access to XFS filesystem images via FUSE. Then we > (the XFS developers) can test the XFS-FUSE module under normal > development conditions as we modify the xfsprogs code base (e.g. via > xfstests) and ensure we always release a working, up-to-date FUSE > wrapper with each xfsprogs release. > > And then once a proper read-only FUSE wrapper has been written, then > we can discuss what is necessary to enable write access via porting > the necessary parts of the kernel code across to the userspace > libxfs codebase and hooking them up to the FUSE API... > > Hmmm? > What about ext4, vfat, btrfs and other filesystems? Also why duplicate the whole thing if you could reuse it? >> And a final example is linking the bootloader code with LKL to access >> the filesystem. This has a hard requirement on non-mmu. > > No way. We *can't* support filesystems that have had bootloaders > make arbitrary changes to the filesystem without the knowlege of the > OS that *owns the filesystem*. Similarly, we cannot support random > applications that internally mount and modify filesystem images in > ways we can't see, control, test or simulate. Sure, they use the > kernel code, but that doesn't stop them from doing stupid shit that > could corrupt the filesystem image. So, no, we are not going to > support giving random applications direct access to XFS filesystem > images, even via LKL. > LKL only exports the Linux kernel system calls and nothing else to applications. Because of that, there should not be any loss of control or visibility to the XFS fs driver. >> So, IMHO there are usecases for using XFS on non-mmu architectures. I >> think it all boils down to: is the patch simple enough to not put an >> unreasonable maintenance burden on developers? > > Look at it this way: a user tries to mount their > XFS-on-LKL-on-FUSE, XFS throughs a memory allocation deadlock > warning because of a high order allocation during mount failing > (i.e. due to the vmalloc no-mmu hacks). > > Who has to spend effort to find out why the error is being thrown? > It's not the FUSE developers. It's not the LKL developers. XFS is > going to be blamed, because it's an XFS error message, and it will > be up to the XFS developers to /prove/ that it's not an XFS problem. > And then google will find these complaints about XFS causing all > sorts of problems, and we're back to the bad old days of everyone > blaming XFS for shortcomings and problems in other code we have no > control over.. > > I really don't see how using LKL to give userspace access to XFS > filesystems is a better solution than actually writing a proper, > supported XFS-FUSE module. LKL is so full of compromises that it's > going to be unworkable and unsupportable in practice... > Could you elaborate on some of these issues? From bfoster@redhat.com Fri Nov 20 16:47:42 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3CBB27F37 for ; Fri, 20 Nov 2015 16:47:42 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1F8D68F8039 for ; Fri, 20 Nov 2015 14:47:38 -0800 (PST) X-ASG-Debug-ID: 1448059656-04cb6c0cd1156590001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id SpnNV87k1GtS6ekv (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 20 Nov 2015 14:47:37 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id C2DADB282F; Fri, 20 Nov 2015 22:47:36 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAKMlai4017915; Fri, 20 Nov 2015 17:47:36 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 9D943122406; Fri, 20 Nov 2015 17:47:34 -0500 (EST) Date: Fri, 20 Nov 2015 17:47:34 -0500 From: Brian Foster To: Dave Chinner Cc: linux-fsdevel@vger.kernel.org, Octavian Purdila , linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151120224734.GA28795@bfoster.bfoster> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119155525.GB13055@bfoster.bfoster> <20151119233547.GN14311@dastard> <20151120151118.GB60886@bfoster.bfoster> <20151120203602.GA26718@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151120203602.GA26718@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448059657 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sat, Nov 21, 2015 at 07:36:02AM +1100, Dave Chinner wrote: > On Fri, Nov 20, 2015 at 10:11:19AM -0500, Brian Foster wrote: > > On Fri, Nov 20, 2015 at 10:35:47AM +1100, Dave Chinner wrote: > > > On Thu, Nov 19, 2015 at 10:55:25AM -0500, Brian Foster wrote: > > > > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > > > > > Naive implementation for non-mmu architectures: allocate physically > > > > > contiguous xfs buffers with alloc_pages. Terribly inefficient with > > > > > memory and fragmentation on high I/O loads but it may be good enough > > > > > for basic usage (which most non-mmu architectures will need). > > > > > > > > > > This patch was tested with lklfuse [1] and basic operations seems to > > > > > work even with 16MB allocated for LKL. > > > > > > > > > > [1] https://github.com/lkl/linux > > > > > > > > > > Signed-off-by: Octavian Purdila > > > > > --- > > > > > > > > Interesting, though this makes me wonder why we couldn't have a new > > > > _XBF_VMEM (for example) buffer type that uses vmalloc(). I'm not > > > > familiar with mmu-less context, but I see that mm/nommu.c has a > > > > __vmalloc() interface that looks like it ultimately translates into an > > > > alloc_pages() call. Would that accomplish what this patch is currently > > > > trying to do? > > > > > > vmalloc is always a last resort. vmalloc space on 32 bit systems is > > > extremely limited and it is easy to exhaust with XFS. > > > > > > > Sure, but my impression is that a vmalloc() buffer is roughly equivalent > > in this regard to a current !XBF_UNMAPPED && size > PAGE_SIZE buffer. We > > just do the allocation and mapping separately (presumably for other > > reasons). > > Yes, it'a always a last resort. We don't use vmap'd buffers very > much on block size <= page size filesystems (e.g. iclog buffers are > the main user in such cases, IIRC), so the typical 32 bit > system doesn't have major problems with vmalloc space. However, the > moment you increase the directory block size > block size, that all > goes out the window... > Ok. It's really only the pre-existing mapped buffer cases we care about here. > > > Also, vmalloc limits the control we have over allocation context > > > (e.g. the hoops we jump through in kmem_alloc_large() to maintain > > > GFP_NOFS contexts), so just using vmalloc doesn't make things much > > > simpler from an XFS perspective. > > > > > > > The comment in kmem_zalloc_large() calls out some apparent hardcoded > > allocation flags down in the depths of vmalloc(). It looks to me that > > page allocation (__vmalloc_area_node()) actually uses the provided > > flags, so I'm not following the "data page" part of that comment. > > You can pass gfp flags for the page allocation part of vmalloc, but > not the pte allocation part of it. That's what the hacks in > kmem_zalloc_large() are doing. > > > Indeed, I do see that this is not the case down in calls like > > pmd_alloc_one(), pte_alloc_one_kernel(), etc., associated with page > > table management. > > Right. > > > Those latter calls are all from following down through the > > map_vm_area()->vmap_page_range() codepath from __vmalloc_area_node(). We > > call vm_map_ram() directly from _xfs_buf_map_pages(), which itself calls > > down into the same code. Indeed, we already protect ourselves here via > > the same memalloc_noio_save() mechanism that kmem_zalloc_large() uses. > > Yes, we do, but that is separately handled to the allocation of the > pages, which we have to do for all types of buffers, mapped or > unmapped, because xfs_buf_ioapply_map() requires direct access to > the underlying pages to build the bio for IO. If we delegate the > allocation of pages to vmalloc, we don't have direct reference to > the underlying pages and so we have to do something completely > diffferent to build the bios for the buffer.... > Octavian points out virt_to_page() in a previous mail. I'm not sure that's the right interface solely based on looking at some current callers, but there is vmalloc_to_page() so I'd expect we can gain access to the pages one way or another. Given that, the buffer allocation code would fully populate the xfs_buf as it is today. The buffer I/O submission code wouldn't really know the difference and shouldn't have to change at all. > > I suspect there's more to it than that because it does look like > > vm_map_ram() has a different mechanism for managing vmalloc space for > > certain (smaller) allocations, either of which I'm not really familiar > > with. > > Yes, it manages vmalloc space quite differently, and there are > different scalability aspects to consider as well - vm_map_ram was > pretty much written for the use XFS has in xfs_buf.c... > Indeed. Looking closer, it appears to have a percpu vmalloc space allocation strategy for smaller allocations. We clearly can't just switch mapped buffer cases over and expect it to work/perform just the same. That said, the vm_map_ram() comment does call out fragmentation concerns for objects with mixed lifetimes. I'd be curious whether our buffer caching can trigger any badness there. OTOH, it's also not clear that this mechanism couldn't extend to vmalloc (or some variant thereof) in the future. Either way, it would require significantly more investigation/testing to enable generic usage. The core point was really just to abstract the nommu changes into something that potentially has generic use. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From darrick.wong@oracle.com Fri Nov 20 18:50:45 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 367DF7F37 for ; Fri, 20 Nov 2015 18:50:45 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 27E398F8040 for ; Fri, 20 Nov 2015 16:50:42 -0800 (PST) X-ASG-Debug-ID: 1448067039-04cb6c0cd1157f70001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id TTrKSXZmCW90s4SH (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 20 Nov 2015 16:50:39 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tAL0oBWs012705 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sat, 21 Nov 2015 00:50:11 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tAL0oAZn026118 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Sat, 21 Nov 2015 00:50:11 GMT Received: from abhmp0009.oracle.com (abhmp0009.oracle.com [141.146.116.15]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tAL0oALc027901; Sat, 21 Nov 2015 00:50:10 GMT Received: from localhost (/10.145.178.207) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 20 Nov 2015 16:50:10 -0800 Subject: [PATCH 1/2] test-scripts: test migration scripts From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 1/2] test-scripts: test migration scripts To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 20 Nov 2015 16:50:08 -0800 Message-ID: <20151121005008.20398.37255.stgit@birch.djwong.org> In-Reply-To: <20151121005001.20398.92856.stgit@birch.djwong.org> References: <20151121005001.20398.92856.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1448067039 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24587 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Add two scripts: "nextid" finds the next available test ID number in a group, and "mvtest" relocates a test, fixes the golden output, and moves the group entry for that test. v2: sorting group files should preserve group order; nextid should use the same algorithm as new; move both tools to tools/. Signed-off-by: Darrick J. Wong --- tools/mvtest | 55 +++++++++++++++++++++++++++ tools/nextid | 1 tools/sort-group | 112 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 168 insertions(+) create mode 100755 tools/mvtest create mode 120000 tools/nextid create mode 100755 tools/sort-group diff --git a/tools/mvtest b/tools/mvtest new file mode 100755 index 0000000..af601d6 --- /dev/null +++ b/tools/mvtest @@ -0,0 +1,55 @@ +#!/bin/sh + +# Renumber a test +dir="$(dirname "$0")" + +if [ -z "$1" ] || [ "$1" = "--help" ]; then + echo "Usage: $0 path_to_test new_path_to_test" + exit 1 +fi + +src="$1" +dest="$2" + +die() { + echo "$@" + exit 1 +} + +append() { + out="$1" + shift + echo "$@" >> "${out}" +} + +test "${src}" != "${dest}" || die "Test \"${src}\" is the same as dest." +test -e "tests/${src}" || die "Test \"${src}\" does not exist." +test ! -e "tests/${dest}" || die "Test \"${src}\" already exists." + +sid="$(basename "${src}")" +did="$(basename "${dest}")" + +sgroup="$(basename "$(dirname "tests/${src}")")" +dgroup="$(basename "$(dirname "tests/${dest}")")" + +sgroupfile="tests/${sgroup}/group" +dgroupfile="tests/${sgroup}/group" + +git mv "tests/${src}" "tests/${dest}" +git mv "tests/${src}.out" "tests/${dest}.out" +sed -e "s/^# FS QA Test No. ${sid}$/# FS QA Test No. ${did}/g" -i "tests/${dest}" +sed -e "s/^QA output created by ${sid}$/QA output created by ${did}/g" -i "tests/${dest}.out" +sed -e "s/test-${sid}/test-${did}/g" -i "tests/${dest}.out" + +grpline="$(grep "^${sid} " "${sgroupfile}")" +newgrpline="$(echo "${grpline}" | sed -e "s/^${sid} /${did} /g")" + +sed -e "/^${sid}.*$/d" -i "${sgroupfile}" +cp "${dgroupfile}" "${dgroupfile}.new" +append "${dgroupfile}.new" "${newgrpline}" +"${dir}/sort-group.py" "${dgroupfile}.new" +mv "${dgroupfile}.new" "${dgroupfile}" + +echo "Moved \"${src}\" to \"${dest}\"." + +exit 0 diff --git a/tools/nextid b/tools/nextid new file mode 120000 index 0000000..5c31d60 --- /dev/null +++ b/tools/nextid @@ -0,0 +1 @@ +sort-group \ No newline at end of file diff --git a/tools/sort-group b/tools/sort-group new file mode 100755 index 0000000..84944ed --- /dev/null +++ b/tools/sort-group @@ -0,0 +1,112 @@ +#!/usr/bin/env python +import sys + +# Sort a group list, carefully preserving comments. + +def xfstest_key(key): + '''Extract the numeric part of a test name if possible.''' + k = 0 + + assert type(key) == str + + # No test number at all... + if not key[0].isdigit(): + return key + + # ...otherwise extract as much number as we can. + for digit in key: + if digit.isdigit(): + k = k * 10 + int(digit) + else: + return k + return k + +def read_group(fd): + '''Read the group list, carefully attaching comments to the next test.''' + tests = {} + comments = None + + for line in fd: + sline = line.strip() + tokens = sline.split() + if len(tokens) == 0 or tokens[0] == '#': + if comments == None: + comments = [] + comments.append(sline) + else: + tests[tokens[0]] = (comments, tokens[1:]) + comments = None + return tests + +def sort_keys(keys): + '''Separate keys into integer and non-integer tests.''' + int_keys = [] + int_xkeys = [] + str_keys = [] + + # Sort keys into integer(ish) tests and other + for key in keys: + xkey = xfstest_key(key) + if type(xkey) == int: + int_keys.append(key) + int_xkeys.append(xkey) + else: + str_keys.append(key) + return (int_keys, int_xkeys, str_keys) + +def write_sorted(tests, fd): + def dump_xkey(xkey): + (comments, tokens) = tests[key] + if comments: + for c in comments: + fd.write('%s\n' % c) + fd.write('%s %s\n' % (key, ' '.join(tokens))) + '''Print tests (and comments) in number order.''' + + (int_keys, ignored, str_keys) = sort_keys(tests.keys()) + for key in sorted(int_keys, key = xfstest_key): + dump_xkey(key) + for key in sorted(str_keys): + dump_xkey(key) + +def sort_main(): + if '--help' in sys.argv[1:]: + print('Usage: %s groupfiles' % sys.argv[0]) + sys.exit(0) + + for arg in sys.argv[1:]: + with open(arg, 'r+') as fd: + x = read_group(fd) + fd.seek(0, 0) + write_sorted(x, fd) + +def nextid_main(): + if '--help' in sys.argv[1:]: + print('Usage: %s group[/startid] ' % sys.argv[0]) + sys.exit(0) + + if len(sys.argv) != 2: + print('Specify exactly one group name.') + sys.exit(1) + + c = sys.argv[1].split('/') + if len(c) > 1: + startid = int(c[1]) + else: + startid = 1 + group = c[0] + + with open('tests/%s/group' % group, 'r') as fd: + x = read_group(fd) + xkeys = {int(x) for x in sort_keys(x.keys())[1]} + + xid = startid + while xid in xkeys: + xid += 1 + print('%s/%d' % (group, xid)) + +if __name__ == '__main__': + if 'nextid' in sys.argv[0]: + nextid_main() + else: + sort_main() From darrick.wong@oracle.com Fri Nov 20 18:50:46 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DF3F47F37 for ; Fri, 20 Nov 2015 18:50:45 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 86A5FAC005 for ; Fri, 20 Nov 2015 16:50:42 -0800 (PST) X-ASG-Debug-ID: 1448067040-04bdf07f081a8d90001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id HUdtlmHF8PFmtsfp (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 20 Nov 2015 16:50:40 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tAL0o61i014202 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sat, 21 Nov 2015 00:50:06 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tAL0o4Np024879 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Sat, 21 Nov 2015 00:50:04 GMT Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tAL0o4OK027876; Sat, 21 Nov 2015 00:50:04 GMT Received: from localhost (/10.145.178.207) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 20 Nov 2015 16:50:03 -0800 Subject: [PATCH v3.3 0/2] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH v3.3 0/2] xfstests: test the nfs/cifs/btrfs/xfs reflink/dedupe ioctls To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 20 Nov 2015 16:50:01 -0800 Message-ID: <20151121005001.20398.92856.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1448067040 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24587 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Hi all, This is a small patch set against the reflink/dedupe test cases in xfstests. The first patch is a rewrite of the tools to find the lowest vacant ID number and to move a test case. These two programs are useful for staging a lot of new tests at a high number and moving them to lower numbers when the maintainer wants to accept the new tests. The second patch updates the golden output for the test that examines the results of feeding bad inputs to the two ioctls. The new error values are based on a discussion of how to react to bad file types on the mailing lists and the ongoing work to hoist the ioctls to the VFS level. If you're going to start using this mess, you probably ought to just pull from my github trees for kernel[1], xfsprogs[2], xfstests[3], and xfs-docs[4]. They should just work with the btrfs that's in 4.3... and somewhat buggily with the 4.3 XFS patched with [1]. (You don't need to pull the kernel or xfs-docs git trees if you're not working on XFS reflink. The relevant xfs_io support will be in xfsprogs 4.3 and the tests were pulled into the xfstests-dev repo last week.) Comments and questions are, as always, welcome. --D [1] https://github.com/djwong/linux/tree/for-dave [2] https://github.com/djwong/xfsprogs/tree/for-dave [3] https://github.com/djwong/xfstests/tree/for-dave [4] https://github.com/djwong/xfs-documentation/tree/for-dave From darrick.wong@oracle.com Fri Nov 20 18:50:50 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 262217F54 for ; Fri, 20 Nov 2015 18:50:50 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id A2588AC004 for ; Fri, 20 Nov 2015 16:50:49 -0800 (PST) X-ASG-Debug-ID: 1448067045-04cb6c0cd2157f80001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id lWg523o5NaGhHxDp (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 20 Nov 2015 16:50:46 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tAL0oI7j014372 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sat, 21 Nov 2015 00:50:18 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tAL0oI51025564 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Sat, 21 Nov 2015 00:50:18 GMT Received: from abhmp0010.oracle.com (abhmp0010.oracle.com [141.146.116.16]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tAL0oHll025887; Sat, 21 Nov 2015 00:50:17 GMT Received: from localhost (/10.145.178.207) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 20 Nov 2015 16:50:17 -0800 Subject: [PATCH 2/2] generic/15[78]: fix error messages in the golden output From: "Darrick J. Wong" X-ASG-Orig-Subj: [PATCH 2/2] generic/15[78]: fix error messages in the golden output To: david@fromorbit.com, darrick.wong@oracle.com Cc: fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Date: Fri, 20 Nov 2015 16:50:14 -0800 Message-ID: <20151121005014.20398.22316.stgit@birch.djwong.org> In-Reply-To: <20151121005001.20398.92856.stgit@birch.djwong.org> References: <20151121005001.20398.92856.stgit@birch.djwong.org> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1448067046 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT, UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24587 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines Fix the error messages in the golden output for generic/15[78], which examine the responses to invalid inputs as returned by the clone/clone_range/extent_same ioctls. Also fix a filtering omission. Signed-off-by: Darrick J. Wong --- tests/generic/157 | 12 ++++++++---- tests/generic/157.out | 2 +- tests/generic/158 | 10 +++++++--- tests/generic/158.out | 8 ++++---- 4 files changed, 20 insertions(+), 12 deletions(-) diff --git a/tests/generic/157 b/tests/generic/157 index a43fb0d..f3de285 100755 --- a/tests/generic/157 +++ b/tests/generic/157 @@ -75,10 +75,14 @@ mkdir "$TESTDIR1/dir1" seq 1 $((2 * BLKSZ / 250)) | while read f; do touch "$TESTDIR1/dir1/$f" done -mknod "$TESTDIR1/dev1" b 8 0 +mknod "$TESTDIR1/dev1" c 1 3 mkfifo "$TESTDIR1/fifo1" sync +_filter_enotty() { + sed -e 's/Inappropriate ioctl for device/Operation not supported/g' +} + echo "Try cross-device reflink" _reflink_range "$TESTDIR1/file1" 0 "$TESTDIR2/file1" 0 $BLKSZ @@ -98,13 +102,13 @@ echo "Try to reflink a device" _reflink_range "$TESTDIR1/dev1" 0 "$TESTDIR1/file2" 0 $BLKSZ echo "Try to reflink to a dir" -_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/dir1" 0 $BLKSZ +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/dir1" 0 $BLKSZ 2>&1 | _filter_test_dir echo "Try to reflink to a device" -_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/dev1" 0 $BLKSZ +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/dev1" 0 $BLKSZ 2>&1 | _filter_enotty echo "Try to reflink to a fifo" -_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/fifo1" 0 $BLKSZ -n +_reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/fifo1" 0 $BLKSZ -n 2>&1 | _filter_enotty echo "Try to reflink an append-only file" _reflink_range "$TESTDIR1/file1" 0 "$TESTDIR1/file3" 0 $BLKSZ -a diff --git a/tests/generic/157.out b/tests/generic/157.out index 177e7f8..3a690ca 100644 --- a/tests/generic/157.out +++ b/tests/generic/157.out @@ -14,7 +14,7 @@ XFS_IOC_CLONE_RANGE: Is a directory Try to reflink a device XFS_IOC_CLONE_RANGE: Invalid argument Try to reflink to a dir -/mnt/test-157/dir1: Is a directory +TEST_DIR/test-157/dir1: Is a directory Try to reflink to a device XFS_IOC_CLONE_RANGE: Operation not supported Try to reflink to a fifo diff --git a/tests/generic/158 b/tests/generic/158 index a499b21..db5d05c 100755 --- a/tests/generic/158 +++ b/tests/generic/158 @@ -76,10 +76,14 @@ mkdir "$TESTDIR1/dir1" seq 1 $((2 * BLKSZ / 250)) | while read f; do touch "$TESTDIR1/dir1/$f" done -mknod "$TESTDIR1/dev1" b 8 0 +mknod "$TESTDIR1/dev1" c 1 3 mkfifo "$TESTDIR1/fifo1" sync +_filter_enotty() { + sed -e 's/Inappropriate ioctl for device/Invalid argument/g' +} + echo "Try cross-device dedupe" _dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR2/file1" 0 $BLKSZ @@ -96,10 +100,10 @@ echo "Try to dedupe a dir" _dedupe_range "$TESTDIR1/dir1" 0 "$TESTDIR1/file2" 0 $BLKSZ echo "Try to dedupe a device" -_dedupe_range "$TESTDIR1/dev1" 0 "$TESTDIR1/file2" 0 $BLKSZ +_dedupe_range "$TESTDIR1/dev1" 0 "$TESTDIR1/file2" 0 $BLKSZ 2>&1 | _filter_enotty echo "Try to dedupe to a dir" -_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/dir1" 0 $BLKSZ +_dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/dir1" 0 $BLKSZ 2>&1 | _filter_test_dir echo "Try to dedupe to a device" _dedupe_range "$TESTDIR1/file1" 0 "$TESTDIR1/dev1" 0 $BLKSZ diff --git a/tests/generic/158.out b/tests/generic/158.out index 36a3f1f..1210429 100644 --- a/tests/generic/158.out +++ b/tests/generic/158.out @@ -12,13 +12,13 @@ dedupe: Invalid argument Try to dedupe a dir XFS_IOC_FILE_EXTENT_SAME: Is a directory Try to dedupe a device -XFS_IOC_FILE_EXTENT_SAME: Permission denied +XFS_IOC_FILE_EXTENT_SAME: Invalid argument Try to dedupe to a dir -/mnt/test-158/dir1: Is a directory +TEST_DIR/test-158/dir1: Is a directory Try to dedupe to a device -dedupe: Permission denied +dedupe: Operation not supported Try to dedupe to a fifo -dedupe: Permission denied +dedupe: Operation not supported Try to dedupe an append-only file Dedupe two files Check scratch fs From BATV+56a981d69ec8c5be2b75+4472+infradead.org+hch@bombadil.srs.infradead.org Sat Nov 21 12:06:56 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 86BF029DF5 for ; Sat, 21 Nov 2015 12:06:56 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 672E48F8033 for ; Sat, 21 Nov 2015 10:06:53 -0800 (PST) X-ASG-Debug-ID: 1448129210-04bdf07f071c8000001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id R0OW0G0uYe7aFH5M (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sat, 21 Nov 2015 10:06:50 -0800 (PST) X-Barracuda-Envelope-From: BATV+56a981d69ec8c5be2b75+4472+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1a0CYe-0007oy-Mx; Sat, 21 Nov 2015 18:06:44 +0000 Date: Sat, 21 Nov 2015 10:06:44 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: david@fromorbit.com, fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [PATCH 2/2] generic/15[78]: fix error messages in the golden output Message-ID: <20151121180644.GA23916@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/2] generic/15[78]: fix error messages in the golden output References: <20151121005001.20398.92856.stgit@birch.djwong.org> <20151121005014.20398.22316.stgit@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151121005014.20398.22316.stgit@birch.djwong.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1448129210 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.70 X-Barracuda-Spam-Status: No, SCORE=0.70 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, MARKETING_SUBJECT, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24606 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS > --- a/tests/generic/158.out > +++ b/tests/generic/158.out > Try to dedupe a device > -XFS_IOC_FILE_EXTENT_SAME: Permission denied > +XFS_IOC_FILE_EXTENT_SAME: Invalid argument > Try to dedupe to a dir > -/mnt/test-158/dir1: Is a directory > +TEST_DIR/test-158/dir1: Is a directory > Try to dedupe to a device > -dedupe: Permission denied > +dedupe: Operation not supported > Try to dedupe to a fifo > -dedupe: Permission denied > +dedupe: Operation not supported Shouldn't these be Invalid argument just like the to a device case above or the clone case? Otherwise looks good, Reviewed-by: Christoph Hellwig From BATV+56a981d69ec8c5be2b75+4472+infradead.org+hch@bombadil.srs.infradead.org Sat Nov 21 12:14:58 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 839CD29DF5 for ; Sat, 21 Nov 2015 12:14:58 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 72C85304059 for ; Sat, 21 Nov 2015 10:14:55 -0800 (PST) X-ASG-Debug-ID: 1448129693-04cbb0605b1ab1d0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id WsqRlqqOsTwaYS8Z (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sat, 21 Nov 2015 10:14:53 -0800 (PST) X-Barracuda-Envelope-From: BATV+56a981d69ec8c5be2b75+4472+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1a0CgV-0005Jx-QM; Sat, 21 Nov 2015 18:14:51 +0000 Date: Sat, 21 Nov 2015 10:14:51 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: david@fromorbit.com, fstests@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [PATCH 2/2] generic/15[78]: fix error messages in the golden output Message-ID: <20151121181451.GA17570@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/2] generic/15[78]: fix error messages in the golden output References: <20151121005001.20398.92856.stgit@birch.djwong.org> <20151121005014.20398.22316.stgit@birch.djwong.org> <20151121180644.GA23916@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151121180644.GA23916@infradead.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1448129693 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.70 X-Barracuda-Spam-Status: No, SCORE=0.70 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, MARKETING_SUBJECT, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24606 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS > Shouldn't these be Invalid argument just like the > to a device case above or the clone case? E.g. something like this on top of your patch: diff --git a/tests/generic/158.out b/tests/generic/158.out index 1210429..dff3692 100644 --- a/tests/generic/158.out +++ b/tests/generic/158.out @@ -16,9 +16,9 @@ XFS_IOC_FILE_EXTENT_SAME: Invalid argument Try to dedupe to a dir TEST_DIR/test-158/dir1: Is a directory Try to dedupe to a device -dedupe: Operation not supported +dedupe: Invalid argument Try to dedupe to a fifo -dedupe: Operation not supported +dedupe: Invalid argument Try to dedupe an append-only file Dedupe two files Check scratch fs From david@fromorbit.com Sun Nov 22 16:05:24 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BFA7C7F37 for ; Sun, 22 Nov 2015 16:05:24 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9716C8F8033 for ; Sun, 22 Nov 2015 14:05:21 -0800 (PST) X-ASG-Debug-ID: 1448229903-04cb6c0cd118ca10001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id nvr7JkE8K6UVCNO0 for ; Sun, 22 Nov 2015 14:05:06 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CmBgBrO1JW/1bELHlegzuBQoJfqSMBAQaLP4UvhA2GCQQCAoEjTQEBAQEBAYELhDQBAQEDAScTHBYKAwULCAMOCgklDwUlAyETiCYHvXgBAQEBBgIBIBmFdIVFhDsBAYNngRUFllCNKJxUY4QYKjSDaoFBAQEB Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 23 Nov 2015 08:34:13 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a0cjo-0004Jb-SR; Mon, 23 Nov 2015 09:04:00 +1100 Date: Mon, 23 Nov 2015 09:04:00 +1100 From: Dave Chinner To: Brian Foster Cc: linux-fsdevel@vger.kernel.org, Octavian Purdila , linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151122220400.GC26718@dastard> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119155525.GB13055@bfoster.bfoster> <20151119233547.GN14311@dastard> <20151120151118.GB60886@bfoster.bfoster> <20151120203602.GA26718@dastard> <20151120224734.GA28795@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151120224734.GA28795@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448229905 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24634 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Nov 20, 2015 at 05:47:34PM -0500, Brian Foster wrote: > On Sat, Nov 21, 2015 at 07:36:02AM +1100, Dave Chinner wrote: > > On Fri, Nov 20, 2015 at 10:11:19AM -0500, Brian Foster wrote: > > > On Fri, Nov 20, 2015 at 10:35:47AM +1100, Dave Chinner wrote: > > > Those latter calls are all from following down through the > > > map_vm_area()->vmap_page_range() codepath from __vmalloc_area_node(). We > > > call vm_map_ram() directly from _xfs_buf_map_pages(), which itself calls > > > down into the same code. Indeed, we already protect ourselves here via > > > the same memalloc_noio_save() mechanism that kmem_zalloc_large() uses. > > > > Yes, we do, but that is separately handled to the allocation of the > > pages, which we have to do for all types of buffers, mapped or > > unmapped, because xfs_buf_ioapply_map() requires direct access to > > the underlying pages to build the bio for IO. If we delegate the > > allocation of pages to vmalloc, we don't have direct reference to > > the underlying pages and so we have to do something completely > > diffferent to build the bios for the buffer.... > > > > Octavian points out virt_to_page() in a previous mail. I'm not sure > that's the right interface solely based on looking at some current > callers, but there is vmalloc_to_page() so I'd expect we can gain access > to the pages one way or another. Sure, but these are not zero cost operations.... > Given that, the buffer allocation code > would fully populate the xfs_buf as it is today. The buffer I/O > submission code wouldn't really know the difference and shouldn't have > to change at all. The abstraction results in more expensive/complex setup and teardown of buffers and/or IO submission. i.e. the use of vmalloc() based abstractions has an additional cost over what we do now. [...] > Either way, it would require significantly more investigation/testing to > enable generic usage. The core point was really just to abstract the > nommu changes into something that potentially has generic use. I'm not saying that it is impossible to do this, just trying to work out if making any changes to support nommu architectures is worth the potential future trouble making such changes could bring us. i.e. before working out how to do something, we have to decide whether it is worth doing in the first place. Just because you can do something doesn't automatically make it a good idea.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Sun Nov 22 16:45:12 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 0FEC17F37 for ; Sun, 22 Nov 2015 16:45:12 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5B5CDAC001 for ; Sun, 22 Nov 2015 14:45:08 -0800 (PST) X-ASG-Debug-ID: 1448232304-04cbb0605c1c2340001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id rQgyONIyu7krdESB for ; Sun, 22 Nov 2015 14:45:04 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BnBwDURFJW/1bELHlegzuBAEKCX6kjAQEGiz+FL4QNhgkCAgEBAoEjTQEBAQEBAYELhDQBAQEDATocGgkFCwgDEgYJJQ8FJQMNFBMbiAsHvXABAQgCIRmFdIQ/gQaEICSDYIEVBZZQjSiBZIRAgyWIF4p0Y4QYKjSDYggXgSoBAQE Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 23 Nov 2015 09:15:03 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a0dNK-0004ND-MD; Mon, 23 Nov 2015 09:44:50 +1100 Date: Mon, 23 Nov 2015 09:44:50 +1100 From: Dave Chinner To: Octavian Purdila Cc: xfs , linux-fsdevel , lkml Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151122224450.GD26718@dastard> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> <20151120210833.GB26718@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448232304 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24635 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sat, Nov 21, 2015 at 12:26:47AM +0200, Octavian Purdila wrote: > On Fri, Nov 20, 2015 at 11:08 PM, Dave Chinner wrote: > > On Fri, Nov 20, 2015 at 03:43:20PM +0200, Octavian Purdila wrote: > >> On Fri, Nov 20, 2015 at 1:24 AM, Dave Chinner wrote: > >> > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > >> >> Naive implementation for non-mmu architectures: allocate physically > >> >> contiguous xfs buffers with alloc_pages. Terribly inefficient with > >> >> memory and fragmentation on high I/O loads but it may be good enough > >> >> for basic usage (which most non-mmu architectures will need). > >> > > >> > Can you please explain why you want to use XFS on low end, basic > >> > non-MMU devices? XFS is a high performance, enterprise/HPC level > >> > filesystem - it's not a filesystem designed for small IoT level > >> > devices - so I'm struggling to see why we'd want to expend any > >> > effort to make XFS work on such devices.... > >> > > >> > >> Hi David, > >> > >> Yes XFS as the main fs on this type of devices does not make sense, > >> but does it hurt to be able to perform basic operation on XFS from > >> these devices? Perhaps accessing an external medium formatted with > >> XFS? > >> > >> Another example is accessing VM images that are formatted with XFS. > >> Currently we can do that with tools like libguestfs that use a VM in > >> the background. I am working on a lighter solution for that where we > >> compile the Linux kernel as a library [1]. This allows access to the > >> filesystem without the need to use a full VM. > > > > That's hardly a "lighter solution" > > > > I'm kinda tired of the ongoing "hack random shit" approach to > > container development. > > Since apparently there is a container devs hunting party going on > right now, let me quickly confess that LKL has nothing to do with > (them be damned) containers :) > > On a more serious note, LKL was not developed for containers or to try > to circumvent privileged mounts. It was developed to allow the Linux > kernel code to be reused in things like simple tools that allows one > to modify a filesystem image. Anything tool that modifies an XFS filesystem that is not directly maintained by the XFS developers voids any kind of support we can supply. Just like the fact we don't support tainted kernels because the 3rd party binary code is unknowable (and usually crap), having the kernel code linked with random 3rd party userspace application code is completely unsupportable by us. Remember that with most kernel code a bug just results in a panic and reboot, and everything just continues on again after the system comes up again. In contrast, a bug in the storage code can cause *persistent damage* that can cause data loss or corruption that cannot be fixed without data loss of some kind. Ultimately, as the maintainer I'm responsible for XFS not eating our users' data, and part of that responsibility involves telling people who want to do daft things that "no, that's a *bad idea*". > > If you need a XFS-FUSE module to allow safe > > userspace access to XFS fielsystems then maybe, just maybe, it makes > > sense to ask the XFS developers how to best go about providing a > > reliable, up-to-date, tested, maintained and supported XFS-FUSE > > module? > > > > IOWs, a "lighter solution" is to use the libxfs code base that we > > already maintain across kernel and userspace in the xfsprogs package > > and write a FUSE wrapper around that. That, immediately, will give > > you full read-only access to XFS filesystem images via FUSE. Then we > > (the XFS developers) can test the XFS-FUSE module under normal > > development conditions as we modify the xfsprogs code base (e.g. via > > xfstests) and ensure we always release a working, up-to-date FUSE > > wrapper with each xfsprogs release. > > > > And then once a proper read-only FUSE wrapper has been written, then > > we can discuss what is necessary to enable write access via porting > > the necessary parts of the kernel code across to the userspace > > libxfs codebase and hooking them up to the FUSE API... > > > > Hmmm? > > > > What about ext4, vfat, btrfs and other filesystems? Ted has also raised exactly the same issues w.r.t. ext4. > Also why duplicate > the whole thing if you could reuse it? Do you use a hammer when you need to tighten a screw? Yes, you can "reuse a hammer" for this purpose, but there's going to be collateral damage because using the screw outside it's original design and architecture constraints presents a high risk of things going wrong. > >> And a final example is linking the bootloader code with LKL to access > >> the filesystem. This has a hard requirement on non-mmu. > > > > No way. We *can't* support filesystems that have had bootloaders > > make arbitrary changes to the filesystem without the knowlege of the > > OS that *owns the filesystem*. Similarly, we cannot support random > > applications that internally mount and modify filesystem images in > > ways we can't see, control, test or simulate. Sure, they use the > > kernel code, but that doesn't stop them from doing stupid shit that > > could corrupt the filesystem image. So, no, we are not going to > > support giving random applications direct access to XFS filesystem > > images, even via LKL. > > > > LKL only exports the Linux kernel system calls and nothing else to > applications. Because of that, there should not be any loss of control > or visibility to the XFS fs driver. It runs in the same address space as the user application, yes? And hence application bugs can cause the kernel code to malfunction, yes? > > I really don't see how using LKL to give userspace access to XFS > > filesystems is a better solution than actually writing a proper, > > supported XFS-FUSE module. LKL is so full of compromises that it's > > going to be unworkable and unsupportable in practice... > > Could you elaborate on some of these issues? Start with "is a no-mmu architecture" and all the compromises that means the kernel code needs to make, add a topping of "runs in the same address space as the application", add a new flavour of kernel binary taint and finish it off with "LKL linked applications will never be tested by their developers over the full functionality the LKL provides them with". Cheers, Dave. -- Dave Chinner david@fromorbit.com From octavian.purdila@intel.com Sun Nov 22 19:41:57 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A5EFB7F37 for ; Sun, 22 Nov 2015 19:41:57 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1EC10AC005 for ; Sun, 22 Nov 2015 17:41:56 -0800 (PST) X-ASG-Debug-ID: 1448242910-04cbb0605b1c4930001-NocioJ Received: from mail-wm0-f53.google.com (mail-wm0-f53.google.com [74.125.82.53]) by cuda.sgi.com with ESMTP id DdkSa6rRSmi39dUp (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Sun, 22 Nov 2015 17:41:50 -0800 (PST) X-Barracuda-Envelope-From: octavian.purdila@intel.com X-Barracuda-Apparent-Source-IP: 74.125.82.53 Received: by wmec201 with SMTP id c201so140279315wme.0 for ; Sun, 22 Nov 2015 17:41:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=XdW+OcpAgQ3CLXOQFvMDKRB93wRl7mDamFmEbSaqUFM=; b=13ROhxhTg9PjZUj1W/Sa7Bfi1LNF7YY4C507fVv2Bh+QzEaM3Tg8T6WWao84RDVMut YKjspwDCpgy47cvFGkRGwHj6YkaNef2pVn5BR0IHqPZOW2eJTjhenjrzoYyv5jxpauYu /FJxlx7c2V+crtE9ACcsdO2pHURjzsHXqAlsKUe+MDVUnW6RKg9ZID05lmD7H9QvGXyS wQQQXmYsLYBw6/YGsgJZSvlr1nVDRCkplZ8jj6/+BuhTs06/27VYyDY3qJD65fgnENXZ FMRsLRYO5DA+TPY9dLshwq1OhQ+opjg08lzlPoc0CoQGDR3HaoCSAYAgHeMeTCOEm1gZ OMYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=XdW+OcpAgQ3CLXOQFvMDKRB93wRl7mDamFmEbSaqUFM=; b=KYFFvgjz/vRVxp3IM9JH7KhcSvzwe0jULugL3yOikq4cZIufmF/Pw5qpW06/i0r9V6 TEm2t7Il1hm8AXHDK75YDqhBJNXghhPkXEkAlw7DWhzasOh1B24WfeAdqayYu0Evlgyd oz9WFXJU54rVYvUqQgylwE+j5snvcVpDxpfyDWsM1cULMwSN70RZIxt5BuVgSECuKRtt Ae/rvXul4Iol3sl9EeTv0Efn/QAXqda4B7FZcyGmz5tsplIHBnDo//T2tMrXf19/0bzz Df1Y/Hbp1dwBJJOuX9o3mJ1UXOfZM/ySOktYPyGtdfnUTdseqvHHdRZmfz7dg6KZr6pq hI9A== X-Gm-Message-State: ALoCoQluIZyp2k11JiWMVVfsDOyqVTvsYcb4PkxtXJ33kNnFZouoFEiiMAxb33PH+aUkV+RL9mNb MIME-Version: 1.0 X-Received: by 10.28.17.7 with SMTP id 7mr12477418wmr.45.1448242909721; Sun, 22 Nov 2015 17:41:49 -0800 (PST) Received: by 10.194.106.131 with HTTP; Sun, 22 Nov 2015 17:41:49 -0800 (PST) In-Reply-To: <20151122224450.GD26718@dastard> References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> <20151120210833.GB26718@dastard> <20151122224450.GD26718@dastard> Date: Mon, 23 Nov 2015 03:41:49 +0200 Message-ID: Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures From: Octavian Purdila X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures To: Dave Chinner Cc: xfs , linux-fsdevel , lkml Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wm0-f53.google.com[74.125.82.53] X-Barracuda-Start-Time: 1448242910 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24638 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Mon, Nov 23, 2015 at 12:44 AM, Dave Chinner wrote: > On Sat, Nov 21, 2015 at 12:26:47AM +0200, Octavian Purdila wrote: >> On Fri, Nov 20, 2015 at 11:08 PM, Dave Chinner wrote: >> > On Fri, Nov 20, 2015 at 03:43:20PM +0200, Octavian Purdila wrote: >> >> On Fri, Nov 20, 2015 at 1:24 AM, Dave Chinner wrote: >> >> > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: >> >> >> Naive implementation for non-mmu architectures: allocate physically >> >> >> contiguous xfs buffers with alloc_pages. Terribly inefficient with >> >> >> memory and fragmentation on high I/O loads but it may be good enough >> >> >> for basic usage (which most non-mmu architectures will need). >> >> > >> >> > Can you please explain why you want to use XFS on low end, basic >> >> > non-MMU devices? XFS is a high performance, enterprise/HPC level >> >> > filesystem - it's not a filesystem designed for small IoT level >> >> > devices - so I'm struggling to see why we'd want to expend any >> >> > effort to make XFS work on such devices.... >> >> > >> >> >> >> Hi David, >> >> >> >> Yes XFS as the main fs on this type of devices does not make sense, >> >> but does it hurt to be able to perform basic operation on XFS from >> >> these devices? Perhaps accessing an external medium formatted with >> >> XFS? >> >> >> >> Another example is accessing VM images that are formatted with XFS. >> >> Currently we can do that with tools like libguestfs that use a VM in >> >> the background. I am working on a lighter solution for that where we >> >> compile the Linux kernel as a library [1]. This allows access to the >> >> filesystem without the need to use a full VM. >> > >> > That's hardly a "lighter solution" >> > >> > I'm kinda tired of the ongoing "hack random shit" approach to >> > container development. >> >> Since apparently there is a container devs hunting party going on >> right now, let me quickly confess that LKL has nothing to do with >> (them be damned) containers :) >> >> On a more serious note, LKL was not developed for containers or to try >> to circumvent privileged mounts. It was developed to allow the Linux >> kernel code to be reused in things like simple tools that allows one >> to modify a filesystem image. > > Anything tool that modifies an XFS filesystem that is not directly > maintained by the XFS developers voids any kind of support we can > supply. Just like the fact we don't support tainted kernels because > the 3rd party binary code is unknowable (and usually crap), having > the kernel code linked with random 3rd party userspace application > code is completely unsupportable by us. > Perhaps tainting the kernel is a solution when running unknown applications linked with LKL. I would argue that applications that are maintained together with LKL (e.g. lklfuse in tools/lkl) should not taint the kernel because those applications will be under the control of kernel developers. I would also argue that mounting a filesystem read-only should not taint the kernel either. > Remember that with most kernel code a bug just results in a panic > and reboot, and everything just continues on again after the system > comes up again. In contrast, a bug in the storage code can cause > *persistent damage* that can cause data loss or corruption that > cannot be fixed without data loss of some kind. > > Ultimately, as the maintainer I'm responsible for XFS not eating our > users' data, and part of that responsibility involves telling people > who want to do daft things that "no, that's a *bad idea*". > I understand how critical filesystem issues are and I appreciate your feedback. Sorry to drag you deeper into this but as you know, no good deed goes unpunished :) >> > If you need a XFS-FUSE module to allow safe >> > userspace access to XFS fielsystems then maybe, just maybe, it makes >> > sense to ask the XFS developers how to best go about providing a >> > reliable, up-to-date, tested, maintained and supported XFS-FUSE >> > module? >> > >> > IOWs, a "lighter solution" is to use the libxfs code base that we >> > already maintain across kernel and userspace in the xfsprogs package >> > and write a FUSE wrapper around that. That, immediately, will give >> > you full read-only access to XFS filesystem images via FUSE. Then we >> > (the XFS developers) can test the XFS-FUSE module under normal >> > development conditions as we modify the xfsprogs code base (e.g. via >> > xfstests) and ensure we always release a working, up-to-date FUSE >> > wrapper with each xfsprogs release. >> > >> > And then once a proper read-only FUSE wrapper has been written, then >> > we can discuss what is necessary to enable write access via porting >> > the necessary parts of the kernel code across to the userspace >> > libxfs codebase and hooking them up to the FUSE API... >> > >> > Hmmm? >> > >> >> What about ext4, vfat, btrfs and other filesystems? > > Ted has also raised exactly the same issues w.r.t. ext4. > >> Also why duplicate >> the whole thing if you could reuse it? > > Do you use a hammer when you need to tighten a screw? Yes, you can > "reuse a hammer" for this purpose, but there's going to be > collateral damage because using the screw outside it's original > design and architecture constraints presents a high risk of things > going wrong. > First, lets try to discuss the potential collateral damage before calling it a hammer. It may just be just an unfamiliar screw-driver :) >> >> And a final example is linking the bootloader code with LKL to access >> >> the filesystem. This has a hard requirement on non-mmu. >> > >> > No way. We *can't* support filesystems that have had bootloaders >> > make arbitrary changes to the filesystem without the knowlege of the >> > OS that *owns the filesystem*. Similarly, we cannot support random >> > applications that internally mount and modify filesystem images in >> > ways we can't see, control, test or simulate. Sure, they use the >> > kernel code, but that doesn't stop them from doing stupid shit that >> > could corrupt the filesystem image. So, no, we are not going to >> > support giving random applications direct access to XFS filesystem >> > images, even via LKL. >> > >> >> LKL only exports the Linux kernel system calls and nothing else to >> applications. Because of that, there should not be any loss of control >> or visibility to the XFS fs driver. > > It runs in the same address space as the user application, yes? And > hence application bugs can cause the kernel code to malfunction, > yes? > Most non-mmu architecture have the same issue and nevertheless non-mmu is still supported in Linux (including most filesystems). Also, filesystem code runs in the same address space with other kernel code and drivers and a bug anywhere in the kernel can cause filesystem code to malfunction. Applications maintained together with LKL and in the kernel tree will be as safe as drivers and other kernel code with regard to filesystem malfunctions. We can taint the kernel when LKL is linked with unknown applications. >> > I really don't see how using LKL to give userspace access to XFS >> > filesystems is a better solution than actually writing a proper, >> > supported XFS-FUSE module. LKL is so full of compromises that it's >> > going to be unworkable and unsupportable in practice... >> >> Could you elaborate on some of these issues? > > Start with "is a no-mmu architecture" and all the compromises that > means the kernel code needs to make, I don't see non-mmu as a compromise. It is supported by Linux and most filesystems work fine on non-mmu architectures. LKL can be implemented as a mmu architecture. Having it as a non-mmu architecture has the advantages of allowing it to run in more constrained environments like bootloaders. > add a topping of "runs in the > same address space as the application", I've addressed this concern above. > add a new flavour of kernel > binary taint I am not sure I understand, are you saying that it is an issue to add a new taint flavor? > and finish it off with "LKL linked applications will > never be tested by their developers over the full functionality the > LKL provides them with". > You lost me here. Why does an application developer have to test the full functionality of a library it is linked with? From david@fromorbit.com Sun Nov 22 22:45:10 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4200C7F37 for ; Sun, 22 Nov 2015 22:45:10 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0A5E48F8039 for ; Sun, 22 Nov 2015 20:45:09 -0800 (PST) X-ASG-Debug-ID: 1448253901-04bdf07f071e6420001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 128A51nZ99BDDkBw for ; Sun, 22 Nov 2015 20:45:01 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2AQBwCumFJW/1bELHlegzsjMG+CX6kJAgEJEAEBBoENijIhhQ6EDRcChXAEgTJNAQEBAQEBgQuFETskNAUlAzSILZ4Kn3AJGYV0iDaESgxBgTEFh0eFV4kyhSSIBIFkSYxDhQ+IVWOBSgsBAQGCQCo0AQEBAYUnAQEB Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 23 Nov 2015 15:14:59 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a0ize-0004qg-Ti for xfs@oss.sgi.com; Mon, 23 Nov 2015 15:44:46 +1100 Date: Mon, 23 Nov 2015 15:44:46 +1100 From: Dave Chinner To: xfs@oss.sgi.com Subject: [ANNOUNCE] xfsprogs: v4.3.0 released Message-ID: <20151123044446.GL19199@dastard> X-ASG-Orig-Subj: [ANNOUNCE] xfsprogs: v4.3.0 released MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="jTMWTj4UTAEmbWeb" Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448253901 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24641 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- --jTMWTj4UTAEmbWeb Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi folks, The xfsprogs repositories have just been updated and tagged with the v4.3.0 release tag. It can be found here: git://oss.sgi.com/xfs/cmds/xfsprogs.git v4.3.0 git://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git v4.3.0 A signed gzipped-tar archive of the source code is available here: ftp://oss.sgi.com/projects/xfs/cmd_tars/xfsprogs-4.3.0.tar.gz ftp://oss.sgi.com/projects/xfs/cmd_tars/xfsprogs-4.3.0.tar.gz.sign The archive is signed with my gpg key (the same one that this release announcement is signed with). Many thanks go to all the contributors to this release. The sumary of changes since v4.2.0 can be found listed in doc/CHANGES, which I have reproduced in part below. -Dave. xfsprogs-4.3.0 (23 Nov 2015) - xfs_fsr: cleanups to recent changes (Eric Sandeen) - xfs_fsr: improved temp file attr fork handling (Eric Sandeen) - libxfs: output verifier names in warnings (Eric Sandeen) - xfs_repair: enable verifier corruption warnings on very verbose output settings (Eric Sandeen) - debian: update initramfs in postinst script (Steve McIntyre) xfsprogs-4.3.0-rc2 (10 Nov 2015) - xfs_fsr: abstract mntinfo/mntent differences (Jan Tulak) - xfs_io: update reflink/dedupe ioctl definitions and implementation (Darrick Wong) - libxcmd: factoring of runtime reporting (Darrick Wong) - man page fixes (Ville Skytt=E4) - removal of ASSERT from exported headers xfsprogs-4.3.0-rc1 (14 Oct 2015) - xfs_io: reflink and dedupe operation support (Darrick Wong) - xfs_db: blockget/blocktrash support for v5 filesystems (Darrick Wong) - xfs_repair: many directory/attr cleanups and fixes (Eric Sandeen) - More OS X build improvements (Jan Tulak) - Log zeroing rework for v5 filesystems to prevent log sequence numbers from going backwards (Brain Foster) The new head of the master branch is commit: 2c909e1 xfsprogs: Release v4.3.0 New Commits since 4.3.0-rc2: Dave Chinner (2): [a32546b] fsr: clean up mountpoint checks [2c909e1] xfsprogs: Release v4.3.0 Eric Sandeen (4): [7849d55] fsr: more tidy up work [e7e3152] fsr: more selinux fixes [a3fac93] libxfs: print name of verifier if it fails [23639f7] repair: print XFS_WANT_CORRUPTED info with -vvv Steve McIntyre (1): [c8b04a6] debian: update initramfs in postinst Code Diffstat: VERSION | 2 +- configure.ac | 2 +- db/attr.c | 1 + db/dir2.c | 1 + db/metadump.c | 3 +- debian/changelog | 8 +++++ debian/postinst | 25 +++++++++++++ doc/CHANGES | 10 +++++- fsr/xfs_fsr.c | 87 +++++++++++++++++------------------------= ---- include/xfs_mount.h | 1 + libxfs/libxfs_io.h | 1 + libxfs/libxfs_priv.h | 23 +++++++++--- libxfs/rdwr.c | 5 +-- libxfs/util.c | 4 +-- libxfs/xfs_alloc.c | 2 ++ libxfs/xfs_alloc_btree.c | 1 + libxfs/xfs_attr_leaf.c | 1 + libxfs/xfs_attr_remote.c | 1 + libxfs/xfs_bmap_btree.c | 1 + libxfs/xfs_da_btree.c | 1 + libxfs/xfs_dir2_block.c | 1 + libxfs/xfs_dir2_data.c | 2 ++ libxfs/xfs_dir2_leaf.c | 2 ++ libxfs/xfs_dir2_node.c | 1 + libxfs/xfs_dquot_buf.c | 1 + libxfs/xfs_ialloc.c | 1 + libxfs/xfs_ialloc_btree.c | 1 + libxfs/xfs_inode_buf.c | 2 ++ libxfs/xfs_sb.c | 2 ++ libxfs/xfs_symlink_remote.c | 1 + man/man8/xfs_repair.8 | 2 +- repair/xfs_repair.c | 4 +++ 32 files changed, 132 insertions(+), 68 deletions(-) create mode 100644 debian/postinst --=20 Dave Chinner david@fromorbit.com --jTMWTj4UTAEmbWeb Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJWUpm+AAoJEK3oKUf0dfodmA0P/1s9CgE2RDuZFAtUuc41AY3E s4/7vc4y8vdNccEz/Jbz9kkTYJdEjon0wKcLo+pvYKXeaLcPqa5Y0VH/ywCoYxMz WHgjL+IHXBFoQCi6agwXgdmD6hXe0NAyIUX376eh7HezDph5rvUK34gYHZG5zoCZ s78gw7GnIFvw+F9YnOWgpNAkXaI074YhtkC5uJn7K7r7ufyMtEoEZGLhq+yO8y26 CLtkKqaQO2b1e7TiZHfw8O+yF344iPegYnEQicBL03u6LfTlW48mkOkIoo9L+Txc EJ2XGgnMMwcIc/SSTQXsDCvOQN3H/zUGn1QNZ/yzwGEl71OndaswobZKaCNKMg2E iWNFMOWYUBPTfwieCLHQTBWKWmPHpMUXyL0xSzb7fiCmlHyN+bxJKR2YI7Upezpp F+YmLshs6ReYvl96l/KglNF4MHKMhdvKj73fRIW25VEW96N144hfYZECwVoi8vTq w/l3NA50LunUBwAh0ch6QQNxQxTyHsu3jYssHnHo7BOPIsBBEph3yVinCQ6taCTv YNqJAXQRv5bkfuxv6g1TVsd06G7Tom6LMUjcCoUwGDd5J6b0gfjz05iXRf6+vlFo NYsjViLw1EZBS25zlNJKu7LZKs45bk3xcoLZvHbc/VUjjLv8Gm8chy9M8GCiN4dY 3UEZqD2l+vgsBf2f5PsU =f5Af -----END PGP SIGNATURE----- --jTMWTj4UTAEmbWeb-- From lvml@5t9.de Mon Nov 23 05:06:08 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C52C47F37 for ; Mon, 23 Nov 2015 05:06:08 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id B4500304039 for ; Mon, 23 Nov 2015 03:06:05 -0800 (PST) X-ASG-Debug-ID: 1448276761-04cbb0605c1ce700001-NocioJ Received: from app1b.xlhost.de (mailout173.xlhost.de [84.200.252.173]) by cuda.sgi.com with ESMTP id qIV9tJGdGTEm3Dhg for ; Mon, 23 Nov 2015 03:06:02 -0800 (PST) X-Barracuda-Envelope-From: lvml@5t9.de X-Barracuda-Apparent-Source-IP: 84.200.252.173 Received: from [192.168.5.53] (barriere.frankfurter-softwarefabrik.de [217.11.197.1]) (Authenticated sender: lkv@5t9.de) by app1b.xlhost.de (Postfix) with ESMTPSA id 548303000AEC for ; Mon, 23 Nov 2015 12:05:59 +0100 (CET) Message-ID: <5652F311.7000406@5t9.de> Date: Mon, 23 Nov 2015 12:05:53 +0100 From: Lutz Vieweg User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Does XFS support cgroup writeback limiting? Content-Type: text/plain; charset=utf-8; format=flowed X-ASG-Orig-Subj: Does XFS support cgroup writeback limiting? Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.98.1 at app1b.xlhost.de X-Virus-Status: Clean X-Barracuda-Connect: mailout173.xlhost.de[84.200.252.173] X-Barracuda-Start-Time: 1448276762 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24647 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi, in June 2015 the article https://lwn.net/Articles/648292/ mentioned upcoming support for limiting the quantity of buffered writes using control groups. Back then, only ext4 was said to support that feature, with other filesystems requiring some minor changes to do the same. The generic cgroup writeback support made it into mainline linux-4.2, I tried to find information on whether other filesystems had meanwhile been adapted, but couldn't find this piece of information. Therefore I'd like to ask: Does XFS (as of linux-4.3 or linux-4.4) support limiting the quantity of buffered writes using control groups? Regards, Lutz Vieweg From bfoster@redhat.com Mon Nov 23 06:50:07 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8512E7F37 for ; Mon, 23 Nov 2015 06:50:07 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 0F2C0AC002 for ; Mon, 23 Nov 2015 04:50:03 -0800 (PST) X-ASG-Debug-ID: 1448283001-04cbb0605b1d0f00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id TYdWk4G5QeYHX7Os (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 23 Nov 2015 04:50:02 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id A6A9B3B757; Mon, 23 Nov 2015 12:50:01 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tANCo1Qf017644; Mon, 23 Nov 2015 07:50:01 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 5D9BE122406; Mon, 23 Nov 2015 07:50:00 -0500 (EST) Date: Mon, 23 Nov 2015 07:50:00 -0500 From: Brian Foster To: Dave Chinner Cc: linux-fsdevel@vger.kernel.org, Octavian Purdila , linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151123124959.GA58452@bfoster.bfoster> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119155525.GB13055@bfoster.bfoster> <20151119233547.GN14311@dastard> <20151120151118.GB60886@bfoster.bfoster> <20151120203602.GA26718@dastard> <20151120224734.GA28795@bfoster.bfoster> <20151122220400.GC26718@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151122220400.GC26718@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448283002 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 23, 2015 at 09:04:00AM +1100, Dave Chinner wrote: > On Fri, Nov 20, 2015 at 05:47:34PM -0500, Brian Foster wrote: > > On Sat, Nov 21, 2015 at 07:36:02AM +1100, Dave Chinner wrote: > > > On Fri, Nov 20, 2015 at 10:11:19AM -0500, Brian Foster wrote: > > > > On Fri, Nov 20, 2015 at 10:35:47AM +1100, Dave Chinner wrote: > > > > Those latter calls are all from following down through the > > > > map_vm_area()->vmap_page_range() codepath from __vmalloc_area_node(). We > > > > call vm_map_ram() directly from _xfs_buf_map_pages(), which itself calls > > > > down into the same code. Indeed, we already protect ourselves here via > > > > the same memalloc_noio_save() mechanism that kmem_zalloc_large() uses. > > > > > > Yes, we do, but that is separately handled to the allocation of the > > > pages, which we have to do for all types of buffers, mapped or > > > unmapped, because xfs_buf_ioapply_map() requires direct access to > > > the underlying pages to build the bio for IO. If we delegate the > > > allocation of pages to vmalloc, we don't have direct reference to > > > the underlying pages and so we have to do something completely > > > diffferent to build the bios for the buffer.... > > > > > > > Octavian points out virt_to_page() in a previous mail. I'm not sure > > that's the right interface solely based on looking at some current > > callers, but there is vmalloc_to_page() so I'd expect we can gain access > > to the pages one way or another. > > Sure, but these are not zero cost operations.... > > > Given that, the buffer allocation code > > would fully populate the xfs_buf as it is today. The buffer I/O > > submission code wouldn't really know the difference and shouldn't have > > to change at all. > > The abstraction results in more expensive/complex setup and teardown > of buffers and/or IO submission. i.e. the use of vmalloc() based > abstractions has an additional cost over what we do now. > > [...] > Yeah, most likely. The vmalloc based lookup certainly looks more involved than if the pages are already readily accessible. How much more expensive (and whether it's noticeable enough to care) is probably a matter of testing. I think the code itself could end up much more simple, however. There's still a lot of duplication in our current implementation that afaiu right now only continues to exist due to the performance advantages of vm_map_ram(). > > Either way, it would require significantly more investigation/testing to > > enable generic usage. The core point was really just to abstract the > > nommu changes into something that potentially has generic use. > > I'm not saying that it is impossible to do this, just trying to work > out if making any changes to support nommu architectures is worth > the potential future trouble making such changes could bring us. > i.e. before working out how to do something, we have to decide > whether it is worth doing in the first place. > > Just because you can do something doesn't automatically make it a > good idea.... > Sure, good point. I've intentionally been sticking to the technical points that have been raised (and I think we've covered it thoroughly to this point ;). FWIW, I agree with most of the concerns that have been called out in the thread so far, but the support question ultimately sounds moot to me. We can reject the "configuration" enabled by this particular patch, but afaik this LKL thing could just go and implement an mmu mode and fundamentally do what it's trying to do today. If it's useful, users will use it, ultimately hit bugs, and we'll have to deal with it one way or another. Note that I'm not saying we have to support LKL. Rather, I view it as equivalent to somebody off running some new non-standard/uncommon architecture (or maybe a hypervisor is a better example in this case). If the user runs into some low-level filesystem issue, the user probably needs to get through whatever levels of support exist for that special architecture/environment first and/or otherwise work with us to find a reproducer on something more standard that we all have easy access to. Just my .02, though. :) Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From david@fromorbit.com Mon Nov 23 14:26:37 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A2FAA7F37 for ; Mon, 23 Nov 2015 14:26:37 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 33876AC002 for ; Mon, 23 Nov 2015 12:26:36 -0800 (PST) X-ASG-Debug-ID: 1448310392-04cbb0605d1dc4b0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 9f4emtaorCBifFBH for ; Mon, 23 Nov 2015 12:26:33 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BeBwCAdVNW/1bELHlegztTb4JfqSsGBos/iTwdhWwEAgKBSE0BAQEBAQGBC4Q0AQEBAwE6HCMFCwgDDgoJJQ8FJQMhE4gmB79BAQEBAQYBAQEBGwQZhXSFRYgkgRUFllCFJIgEnFRjghEdgWoqNINjJYEjAQEB Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 24 Nov 2015 06:56:31 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a0xgp-0006pn-7T; Tue, 24 Nov 2015 07:26:19 +1100 Date: Tue, 24 Nov 2015 07:26:19 +1100 From: Dave Chinner To: Lutz Vieweg Cc: xfs@oss.sgi.com Subject: Re: Does XFS support cgroup writeback limiting? Message-ID: <20151123202619.GE26718@dastard> X-ASG-Orig-Subj: Re: Does XFS support cgroup writeback limiting? References: <5652F311.7000406@5t9.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5652F311.7000406@5t9.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448310392 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24658 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Nov 23, 2015 at 12:05:53PM +0100, Lutz Vieweg wrote: > Hi, > > in June 2015 the article https://lwn.net/Articles/648292/ mentioned > upcoming support for limiting the quantity of buffered writes > using control groups. > > Back then, only ext4 was said to support that feature, with other > filesystems requiring some minor changes to do the same. Yes, changing the kernel code to support this functionality is about 3 lines of code. however.... > The generic cgroup writeback support made it into mainline > linux-4.2, I tried to find information on whether other filesystems > had meanwhile been adapted, but couldn't find this piece of information. > > Therefore I'd like to ask: Does XFS (as of linux-4.3 or linux-4.4) > support limiting the quantity of buffered writes using control groups? .... I haven't added support to XFS because I have no way of verifying the functionality works and that it continues to work as it is intended. i.e. we have no regression test coverage for cgroup aware writeback and until someone writes a set of regression tests that validate it's functionality works correctly it will remain this way. Writing code is trivial. Validating the code actually works as intended and doesn't silently get broken in the future is the hard part.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Nov 23 15:00:29 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9B6C07F37 for ; Mon, 23 Nov 2015 15:00:29 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 87F90304039 for ; Mon, 23 Nov 2015 13:00:29 -0800 (PST) X-ASG-Debug-ID: 1448312425-04cbb0605c1dd0c0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id A7ZL06xJ2LdEV4zZ for ; Mon, 23 Nov 2015 13:00:25 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BgBwB7fVNW/1bELHlegztTb4JfqSsGBos/iTwXCoVoBAICgUhNAQEBAQEBgQuENAEBAQMBAQEBJBMcFgIIAwULCAMOBAYJJQ8FExIDDRQTiCYHDr8zAQEBBwIBIBmFdIVFgnGBSgEBg2eBFQWFT5EBhSSFVIIwgWSEQJYwY4IRHYFqKjSDaoFBAQEB Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 24 Nov 2015 07:30:24 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a0yDb-0006xk-Gi; Tue, 24 Nov 2015 08:00:11 +1100 Date: Tue, 24 Nov 2015 08:00:11 +1100 From: Dave Chinner To: Brian Foster Cc: linux-fsdevel@vger.kernel.org, Octavian Purdila , linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151123210011.GF26718@dastard> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119155525.GB13055@bfoster.bfoster> <20151119233547.GN14311@dastard> <20151120151118.GB60886@bfoster.bfoster> <20151120203602.GA26718@dastard> <20151120224734.GA28795@bfoster.bfoster> <20151122220400.GC26718@dastard> <20151123124959.GA58452@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151123124959.GA58452@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448312425 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24659 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Nov 23, 2015 at 07:50:00AM -0500, Brian Foster wrote: > On Mon, Nov 23, 2015 at 09:04:00AM +1100, Dave Chinner wrote: > > On Fri, Nov 20, 2015 at 05:47:34PM -0500, Brian Foster wrote: > > > On Sat, Nov 21, 2015 at 07:36:02AM +1100, Dave Chinner wrote: > > > > On Fri, Nov 20, 2015 at 10:11:19AM -0500, Brian Foster wrote: > > > > > On Fri, Nov 20, 2015 at 10:35:47AM +1100, Dave Chinner wrote: > > > > > Those latter calls are all from following down through the > > > > > map_vm_area()->vmap_page_range() codepath from __vmalloc_area_node(). We > > > > > call vm_map_ram() directly from _xfs_buf_map_pages(), which itself calls > > > > > down into the same code. Indeed, we already protect ourselves here via > > > > > the same memalloc_noio_save() mechanism that kmem_zalloc_large() uses. > > > > > > > > Yes, we do, but that is separately handled to the allocation of the > > > > pages, which we have to do for all types of buffers, mapped or > > > > unmapped, because xfs_buf_ioapply_map() requires direct access to > > > > the underlying pages to build the bio for IO. If we delegate the > > > > allocation of pages to vmalloc, we don't have direct reference to > > > > the underlying pages and so we have to do something completely > > > > diffferent to build the bios for the buffer.... > > > > > > > > > > Octavian points out virt_to_page() in a previous mail. I'm not sure > > > that's the right interface solely based on looking at some current > > > callers, but there is vmalloc_to_page() so I'd expect we can gain access > > > to the pages one way or another. > > > > Sure, but these are not zero cost operations.... > > > > > Given that, the buffer allocation code > > > would fully populate the xfs_buf as it is today. The buffer I/O > > > submission code wouldn't really know the difference and shouldn't have > > > to change at all. > > > > The abstraction results in more expensive/complex setup and teardown > > of buffers and/or IO submission. i.e. the use of vmalloc() based > > abstractions has an additional cost over what we do now. > > > > [...] > > > > Yeah, most likely. The vmalloc based lookup certainly looks more > involved than if the pages are already readily accessible. How much more > expensive (and whether it's noticeable enough to care) is probably a > matter of testing. I think the code itself could end up much more > simple, however. There's still a lot of duplication in our current > implementation that afaiu right now only continues to exist due to the > performance advantages of vm_map_ram(). Yup. The historical problem here is that the mm/ people are not really interested in making vmalloc() scale/perform better. We are always told that if you need vmalloc() you are doing something wrong, and so vmalloc() doesn't need improving. The same reason is generally given for not making vmalloc handle GFP flags properly, so we're really stuck between a rock and a hard place here. > > > Either way, it would require significantly more investigation/testing to > > > enable generic usage. The core point was really just to abstract the > > > nommu changes into something that potentially has generic use. > > > > I'm not saying that it is impossible to do this, just trying to work > > out if making any changes to support nommu architectures is worth > > the potential future trouble making such changes could bring us. > > i.e. before working out how to do something, we have to decide > > whether it is worth doing in the first place. > > > > Just because you can do something doesn't automatically make it a > > good idea.... > > Sure, good point. I've intentionally been sticking to the technical > points that have been raised (and I think we've covered it thoroughly to > this point ;). *nod* > FWIW, I agree with most of the concerns that have been called out in the > thread so far, but the support question ultimately sounds moot to me. We > can reject the "configuration" enabled by this particular patch, but > afaik this LKL thing could just go and implement an mmu mode and > fundamentally do what it's trying to do today. If it's useful, users > will use it, ultimately hit bugs, and we'll have to deal with it one way > or another. Right, but we need to set expectations appropriately now, before we have users that depend on something we can't sanely support.... > Note that I'm not saying we have to support LKL. Rather, I view it as > equivalent to somebody off running some new non-standard/uncommon > architecture (or maybe a hypervisor is a better example in this case). Right, but we don't support every possible kernel/device out there with XFS. Up to now, no-mmu devices have been small, embedded systems that can't/won't fit XFS in their flash/RAM because of space/cost/need and so we've been able to completely ignore the issues such platforms have. We really don't pay much attention to 32 bit systems anymore, and no-mmu is much, much further down the list of "users who need XFS" than 32 bit arches.... > If the user runs into some low-level filesystem issue, the user probably > needs to get through whatever levels of support exist for that special > architecture/environment first and/or otherwise work with us to find a > reproducer on something more standard that we all have easy access to. > Just my .02, though. :) The biggest problem we have is that the kernel might be tripping over a problem introduced by some broken version of an app linked against some old version of LKL. That's my biggest worry here - it's not that LKL uses kernel code, it's that we no longer have any idea of what code has been modifying the filesystem nor any easy way of finding out. And we all know how hard it can be to get a straight answer to "explain exactly what you did" from bug reporters... Sure, once we *know* that the filesystem was modified by a random userspace application, we can say "please reproduce with a vanilla kernel", but it's getting to that point that can be problematic. This is why I think a proper FUSE module implemented on top of the userspace libxfs and is built as part of xfsprogs is a much better way give users userspace access to XFS filesystems. We can develop and support that directly, knowing exactly what code users are running and having a relatively controlled environment the filesystem code is running in.... Cheers, Dave. > > Brian > > > Cheers, > > > > Dave. > > -- > > Dave Chinner > > david@fromorbit.com > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs > -- Dave Chinner david@fromorbit.com From darrick.wong@oracle.com Mon Nov 23 15:26:11 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8F5A27F37 for ; Mon, 23 Nov 2015 15:26:11 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7101F304059 for ; Mon, 23 Nov 2015 13:26:08 -0800 (PST) X-ASG-Debug-ID: 1448313965-04bdf07f071fe210001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id FLEmMqzQGNNfVElq (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 23 Nov 2015 13:26:05 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tANLPZba010821 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 23 Nov 2015 21:25:36 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.13.8/8.13.8) with ESMTP id tANLPZm8006934 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Mon, 23 Nov 2015 21:25:35 GMT Received: from abhmp0015.oracle.com (abhmp0015.oracle.com [141.146.116.21]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id tANLPZ5B008255; Mon, 23 Nov 2015 21:25:35 GMT Received: from localhost (/24.21.154.84) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 23 Nov 2015 13:25:34 -0800 Date: Mon, 23 Nov 2015 13:25:33 -0800 From: "Darrick J. Wong" To: Christoph Hellwig Cc: david@fromorbit.com, fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [PATCH 2/2] generic/15[78]: fix error messages in the golden output Message-ID: <20151123212533.GC10589@birch.djwong.org> X-ASG-Orig-Subj: Re: [PATCH 2/2] generic/15[78]: fix error messages in the golden output References: <20151121005001.20398.92856.stgit@birch.djwong.org> <20151121005014.20398.22316.stgit@birch.djwong.org> <20151121180644.GA23916@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151121180644.GA23916@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: userv0021.oracle.com [156.151.31.71] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1448313965 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT, UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24661 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Sat, Nov 21, 2015 at 10:06:44AM -0800, Christoph Hellwig wrote: > > --- a/tests/generic/158.out > > +++ b/tests/generic/158.out > > Try to dedupe a device > > -XFS_IOC_FILE_EXTENT_SAME: Permission denied > > +XFS_IOC_FILE_EXTENT_SAME: Invalid argument > > Try to dedupe to a dir > > -/mnt/test-158/dir1: Is a directory > > +TEST_DIR/test-158/dir1: Is a directory > > Try to dedupe to a device > > -dedupe: Permission denied > > +dedupe: Operation not supported > > Try to dedupe to a fifo > > -dedupe: Permission denied > > +dedupe: Operation not supported > > Shouldn't these be Invalid argument just like the > to a device case above or the clone case? I was trying to mirror the behavior of reflink, which spits out EOPNOTSUPP when the destination isn't a regular file and EINVAL when the source isn't a regular file. --D > > Otherwise looks good, > > Reviewed-by: Christoph Hellwig From david@fromorbit.com Mon Nov 23 15:46:40 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2FD7E7F37 for ; Mon, 23 Nov 2015 15:46:40 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1FFCB8F8035 for ; Mon, 23 Nov 2015 13:46:37 -0800 (PST) X-ASG-Debug-ID: 1448315193-04cb6c0cd11a91e0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id W8nvdqRAte1EoXXq for ; Mon, 23 Nov 2015 13:46:33 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2C3BwA0iFNW/1bELHlegzuBAEKCX6krBgaLP4UvhA2GCQICAQECgUhNAQEBAQEBgQuENAEBAQMBOhwaCQULCAMSBgklDwUlAw0UExuICwe/RQELASAZhXSFRYQgHgaEdQWWUIp4gjCBZBaEKoMliBeKdGOCER2Baio0g2IIF4EqAQEB Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 24 Nov 2015 08:16:32 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a0ywF-00073S-BM; Tue, 24 Nov 2015 08:46:19 +1100 Date: Tue, 24 Nov 2015 08:46:19 +1100 From: Dave Chinner To: Octavian Purdila Cc: xfs , linux-fsdevel , lkml Subject: Re: [RFC PATCH] xfs: support for non-mmu architectures Message-ID: <20151123214619.GG26718@dastard> X-ASG-Orig-Subj: Re: [RFC PATCH] xfs: support for non-mmu architectures References: <1447800381-20167-1-git-send-email-octavian.purdila@intel.com> <20151119232455.GM14311@dastard> <20151120210833.GB26718@dastard> <20151122224450.GD26718@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448315193 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24660 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Nov 23, 2015 at 03:41:49AM +0200, Octavian Purdila wrote: > On Mon, Nov 23, 2015 at 12:44 AM, Dave Chinner wrote: > > On Sat, Nov 21, 2015 at 12:26:47AM +0200, Octavian Purdila wrote: > >> On Fri, Nov 20, 2015 at 11:08 PM, Dave Chinner wrote: > >> > On Fri, Nov 20, 2015 at 03:43:20PM +0200, Octavian Purdila wrote: > >> >> On Fri, Nov 20, 2015 at 1:24 AM, Dave Chinner wrote: > >> >> > On Wed, Nov 18, 2015 at 12:46:21AM +0200, Octavian Purdila wrote: > >> >> >> Naive implementation for non-mmu architectures: allocate physically > >> >> >> contiguous xfs buffers with alloc_pages. Terribly inefficient with > >> >> >> memory and fragmentation on high I/O loads but it may be good enough > >> >> >> for basic usage (which most non-mmu architectures will need). > >> >> > > >> >> > Can you please explain why you want to use XFS on low end, basic > >> >> > non-MMU devices? XFS is a high performance, enterprise/HPC level > >> >> > filesystem - it's not a filesystem designed for small IoT level > >> >> > devices - so I'm struggling to see why we'd want to expend any > >> >> > effort to make XFS work on such devices.... > >> >> > > >> >> > >> >> Hi David, > >> >> > >> >> Yes XFS as the main fs on this type of devices does not make sense, > >> >> but does it hurt to be able to perform basic operation on XFS from > >> >> these devices? Perhaps accessing an external medium formatted with > >> >> XFS? > >> >> > >> >> Another example is accessing VM images that are formatted with XFS. > >> >> Currently we can do that with tools like libguestfs that use a VM in > >> >> the background. I am working on a lighter solution for that where we > >> >> compile the Linux kernel as a library [1]. This allows access to the > >> >> filesystem without the need to use a full VM. > >> > > >> > That's hardly a "lighter solution" > >> > > >> > I'm kinda tired of the ongoing "hack random shit" approach to > >> > container development. > >> > >> Since apparently there is a container devs hunting party going on > >> right now, let me quickly confess that LKL has nothing to do with > >> (them be damned) containers :) > >> > >> On a more serious note, LKL was not developed for containers or to try > >> to circumvent privileged mounts. It was developed to allow the Linux > >> kernel code to be reused in things like simple tools that allows one > >> to modify a filesystem image. > > > > Anything tool that modifies an XFS filesystem that is not directly > > maintained by the XFS developers voids any kind of support we can > > supply. Just like the fact we don't support tainted kernels because > > the 3rd party binary code is unknowable (and usually crap), having > > the kernel code linked with random 3rd party userspace application > > code is completely unsupportable by us. > > > > Perhaps tainting the kernel is a solution when running unknown > applications linked with LKL. It's not the *kernel* that is the problem - it is LKL that is the tainted code! > I would argue that applications that are maintained together with LKL > (e.g. lklfuse in tools/lkl) should not taint the kernel because those > applications will be under the control of kernel developers. I completely disagree. Just because the code is in the kernel tree, it doesn't mean it's controlled, reviewed, tested or maintained by the relevant subsystem maintainers. If the subsystem maintainers are not actively maintaining/testing those tools, then users can't expect the subsystem maintainers to support them. > I would > also argue that mounting a filesystem read-only should not taint the > kernel either. LKL != kernel. > >> >> And a final example is linking the bootloader code with LKL to access > >> >> the filesystem. This has a hard requirement on non-mmu. > >> > > >> > No way. We *can't* support filesystems that have had bootloaders > >> > make arbitrary changes to the filesystem without the knowlege of the > >> > OS that *owns the filesystem*. Similarly, we cannot support random > >> > applications that internally mount and modify filesystem images in > >> > ways we can't see, control, test or simulate. Sure, they use the > >> > kernel code, but that doesn't stop them from doing stupid shit that > >> > could corrupt the filesystem image. So, no, we are not going to > >> > support giving random applications direct access to XFS filesystem > >> > images, even via LKL. > >> > > >> > >> LKL only exports the Linux kernel system calls and nothing else to > >> applications. Because of that, there should not be any loss of control > >> or visibility to the XFS fs driver. > > > > It runs in the same address space as the user application, yes? And > > hence application bugs can cause the kernel code to malfunction, > > yes? > > > > Most non-mmu architecture have the same issue and nevertheless non-mmu > is still supported in Linux (including most filesystems). That doesn't mean all subsystems in the kernel support users on non-mmu systems. > Also, filesystem code runs in the same address space with other kernel > code and drivers and a bug anywhere in the kernel can cause filesystem > code to malfunction. Well, yes, but we have trust other kernel developers keep their ship in good shape, too. But we don't trust *out of tree code* - that taints the kernel and most upstream kernel developers will notice such taints when there are weird errors being reported.... But you want to extend that trust to whatever random code gets chucked into tools/lkl. I'm stretched far enough already having to keep up with mm, VFS, locking and filesystem developments that I don't have time to keep up with what LKL is doing or what applications people are writing. You're not going to get subsystem maintainers being able to find the time to review and test applications that get stuffed into tools/lkl, so from that perspective it's still a complete crapshoot. > >> > I really don't see how using LKL to give userspace access to XFS > >> > filesystems is a better solution than actually writing a proper, > >> > supported XFS-FUSE module. LKL is so full of compromises that it's > >> > going to be unworkable and unsupportable in practice... > >> > >> Could you elaborate on some of these issues? > > > > Start with "is a no-mmu architecture" and all the compromises that > > means the kernel code needs to make, > > I don't see non-mmu as a compromise. It is supported by Linux and most > filesystems work fine on non-mmu architectures. most != all. XFS is unashamedly aimed and developed for high performance systems. i.e. enterprise servers, HPC, fileservers, cloud storage infrastructure, etc. IOWs, we don't even develop for desktop machines, even though XFS performs adequately for most desktop workloads. We've never cared about non-mmu systems because of the requirements we have on virtually mapped buffers and the fact they don't exist in the target markets XFS aimed at. And, really, LKL doesn't change that... > LKL can be implemented > as a mmu architecture. Having it as a non-mmu architecture has the > advantages of allowing it to run in more constrained environments like > bootloaders. The OS owns the filesystem, not the bootloader. If the bootloader is modifying filesystems (e.g. by running log recovery to mount the fs internally to find the kernel/initrd files), then the boot loader compromises the filesystem integrity. We don't not support such configurations at all. > > and finish it off with "LKL linked applications will > > never be tested by their developers over the full functionality the > > LKL provides them with". > > You lost me here. Why does an application developer have to test the > full functionality of a library it is linked with? How much filesystem testing did you actually do with lklfuse? What about load testing? Data integrity/crash/power fail and recovery testing? Scalability testing? Or have you just assumed that it'll all just work fine because the kernel fs developers test this stuff? Yes, we've tested the kernel code along these lines *in kernel space*. That doesn't mean that an LKL application that uses the kernel functionality *in user space* will behave the same way or, indeed, function correctly in adverse circumstances. Application developers are not going to be aware of such issues, and they aren't going to test for such situations - they are simply going to assume "this works just fine" until it doesn't.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From lvml@5t9.de Mon Nov 23 16:08:06 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7F0567F37 for ; Mon, 23 Nov 2015 16:08:06 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 53BDA30405F for ; Mon, 23 Nov 2015 14:08:03 -0800 (PST) X-ASG-Debug-ID: 1448316480-04bdf07f081fee90001-NocioJ Received: from app1b.xlhost.de (mailout173.xlhost.de [84.200.252.173]) by cuda.sgi.com with ESMTP id sDFdRGxMEFUd4FPP for ; Mon, 23 Nov 2015 14:08:01 -0800 (PST) X-Barracuda-Envelope-From: lvml@5t9.de X-Barracuda-Apparent-Source-IP: 84.200.252.173 Received: from [10.223.1.8] (55d446e9.access.ecotel.net [85.212.70.233]) (Authenticated sender: lkv@5t9.de) by app1b.xlhost.de (Postfix) with ESMTPSA id 291013000AC0; Mon, 23 Nov 2015 23:07:58 +0100 (CET) Message-ID: <56538E6A.6030203@5t9.de> Date: Mon, 23 Nov 2015 23:08:42 +0100 From: Lutz Vieweg User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: Does XFS support cgroup writeback limiting? References: <5652F311.7000406@5t9.de> <20151123202619.GE26718@dastard> X-ASG-Orig-Subj: Re: Does XFS support cgroup writeback limiting? In-Reply-To: <20151123202619.GE26718@dastard> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-Virus-Scanned: clamav-milter 0.98.1 at app1b.xlhost.de X-Virus-Status: Clean X-Barracuda-Connect: mailout173.xlhost.de[84.200.252.173] X-Barracuda-Start-Time: 1448316481 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24661 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 11/23/2015 09:26 PM, Dave Chinner wrote: > On Mon, Nov 23, 2015 at 12:05:53PM +0100, Lutz Vieweg wrote: >> in June 2015 the article https://lwn.net/Articles/648292/ mentioned >> upcoming support for limiting the quantity of buffered writes >> using control groups. >> >> Back then, only ext4 was said to support that feature, with other >> filesystems requiring some minor changes to do the same. > > Yes, changing the kernel code to support this functionality is about > 3 lines of code. Oh, I didn't expect it to be such a small change :-) > .... I haven't added support to XFS because I have no way of > verifying the functionality works and that it continues to work as > it is intended. i.e. we have no regression test coverage for cgroup > aware writeback and until someone writes a set of regression tests > that validate it's functionality works correctly it will remain this > way. > > Writing code is trivial. Validating the code actually works as > intended and doesn't silently get broken in the future is the > hard part.... Understood, would you anyway be willing to publish such a three-line-patch (outside of official releases) for those daredevils (like me :-)) who'd be willing to give it a try? After all, this functionality is the last piece of the "isolation"-puzzle that is missing from Linux to actually allow fencing off virtual machines or containers from DOSing each other by using up all I/O bandwidth... Regards, Lutz Vieweg From david@fromorbit.com Mon Nov 23 17:10:04 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E56FE7F37 for ; Mon, 23 Nov 2015 17:10:03 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6BFC7AC001 for ; Mon, 23 Nov 2015 15:10:00 -0800 (PST) X-ASG-Debug-ID: 1448320195-04cbb0605c1dfa20001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 2nwMGT1OfOe169We for ; Mon, 23 Nov 2015 15:09:56 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2C7BwApnFNW/1bELHlegztTb4JfqR8MBgaLP4Jwgj+EDRmFcAICAQECgUhNAQEBAQEBgQuENAEBAQMBOhwjBQsIAw4KCSUPBSUDIROIJge/OwEBCAIBIBmFdIVFiTkFh0QDhwqHf4UkgSiGXJxUY4IRHYFqKjSFKwEBAQ Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 24 Nov 2015 09:39:18 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a10E3-0007De-8i; Tue, 24 Nov 2015 10:08:47 +1100 Date: Tue, 24 Nov 2015 10:08:47 +1100 From: Dave Chinner To: Andreas Gruenbacher Cc: xfs@oss.sgi.com Subject: Re: [XFSTESTS 5/6] Add richacl tests Message-ID: <20151123230847.GH26718@dastard> X-ASG-Orig-Subj: Re: [XFSTESTS 5/6] Add richacl tests References: <1447856269-7872-1-git-send-email-agruenba@redhat.com> <1447856269-7872-6-git-send-email-agruenba@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447856269-7872-6-git-send-email-agruenba@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448320195 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24662 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Nov 18, 2015 at 03:17:48PM +0100, Andreas Gruenbacher wrote: > Add the Rich Access Control List tests from the richacl package. The > new tests require TEST_DEV and TEST_DIR to be set. > > When the check script is run, it first makes sure that the test > filesystem has richacls enabled or disabled as appropriate: with the > -richacl option, richacls must be enabled; without the -richacl option, > richacls must be disabled. If TEST_DEV has incorrect richacl support, > the TEST_DEV filesystem is recreated. No, we don't recreate the testdev like this with the test harness. The test device is intended to remain unchanged from run to run, so give us long term aging of the test filesystem over months of regression test running. If you want to test the testdev with richacls enabled, then you need to manually create the testdev with richacls. Any test that specifically needs to enable richacls should use the scratch device and use a _requires_scratch_richacls() test to check that the scratch device can be created with richacl support. > The -richacl option currently selects the tests in the richacl group to > be run. Additional test groups or tests can be specified on the command > line, e.g., > >> ./check -richacl -g quick > (Eventually, the -richacl option will be changed to only skip tests > which are incompatible with richacls.) No, this is wrong. If you want to check richacls, it should be via a test group, not a specific command line option ./check -g richacl That makes the first 2 patches in the series go away. > Signed-off-by: Andreas Gruenbacher > --- > .gitignore | 1 + > check | 39 +++++++- > common/rc | 23 ++++- > src/Makefile | 2 +- > src/require-richacls.c | 35 +++++++ That's a red flag. For XFS, in common/rc: _require_xfs_richacl() { _scratch_mkfs_xfs_supported -m richacl=1 >/dev/null 2>&1 \ || _notrun "mkfs.xfs doesn't have richacl feature" _scratch_mkfs_xfs -m richacl=1 >/dev/null 2>&1 \ _scratch_mount >/dev/null 2>&1 \ || _notrun "Kernel doesn't support richacl feature" umount $SCRATCH_MNT } _require_scratch_richacl() { case "$FSTYP" in xfs) _require_xfs_richacl ;; ext4) _require_ext4_richacl ;; *) _notrun "this test requires a richacl support on SCRATCHDEV" ;; esac } > tests/richacl/001-apply-masks | 1 + > tests/richacl/002-auto-inheritance | 1 + > tests/richacl/003-basic | 1 + > tests/richacl/004-chmod | 1 + > tests/richacl/005-chown | 1 + > tests/richacl/006-create | 1 + > tests/richacl/007-ctime | 1 + > tests/richacl/008-delete | 1 + > tests/richacl/009-setrichacl-modify | 1 + > tests/richacl/010-write-vs-append | 1 + These seem very short for tests. Oh, they just call one of the files below: > tests/richacl/Makefile | 44 +++++++++ > tests/richacl/apply-masks | 163 ++++++++++++++++++++++++++++++ > tests/richacl/auto-inheritance | 191 ++++++++++++++++++++++++++++++++++++ > tests/richacl/basic | 97 ++++++++++++++++++ > tests/richacl/chmod | 40 ++++++++ > tests/richacl/chown | 42 ++++++++ > tests/richacl/create | 36 +++++++ > tests/richacl/ctime | 35 +++++++ > tests/richacl/delete | 89 +++++++++++++++++ > tests/richacl/group | 15 +++ > tests/richacl/setrichacl-modify | 57 +++++++++++ > tests/richacl/test-lib.sh | 149 ++++++++++++++++++++++++++++ > tests/richacl/write-vs-append | 54 ++++++++++ That's a strange way of running tests, an dmost definitely not the way xfstests are written or supposed to be executed. And looking at tests/richacl/Makefile, these files need to be installed somewhere in the path for the tests to work. This is unnecessary complexity; the tests should simply execute in place in the source tree and not require any special installation steps. i.e. only the numbered version of the test should exist, and all the other files be moved into them. They shouldn't be in tests/richacl, either - these are generic tests and so should be in tests/generic, using whatever the next unused test numbers are. And then, in the tests/generic/group file, there will be entries like: 178-apply-masks auto quick richacl 179-auto-inheritance auto quick richacl .... These tests need to use the common xfstests structure (i.e. the setup code from the "new" script). The file that has all the common functionality in it (test-lib.sh) needs to be moved to common/richacl and included along with the necessary common files. At this point, the makefile can also go away. > diff --git a/tests/richacl/apply-masks b/tests/richacl/apply-masks > new file mode 100755 > index 0000000..7a99cf9 > --- /dev/null > +++ b/tests/richacl/apply-masks > @@ -0,0 +1,163 @@ > +#! /bin/sh We use /bin/bash in xfstests. > + > +. ${0%/*}/test-lib.sh > + > +require_richacls > +use_tmpdir No test actually uses $tmpdir, so why does this exist? > + > +ncheck "touch x" > +ncheck "setrichacl --set 'owner@:rwp::allow group@:rwp::allow everyone@:r::allow' x" > +check "getrichacl x" < +x: > + owner@:rwp----------::allow > + group@:rwp----------::allow > + everyone@:r------------::allow > +EOF Ok, let's break this down, because most of the tests are similar. ncheck is not needed, as golden output matching will catch an unexpected error. check is not needed, because the output of the command should match what is in the golden output file. i.e, this test should be simply: touch x setrichacl --set 'owner@:rwp::allow group@:rwp::allow everyone@:r::allow' x getrichacl x And the golden output file should contain: x: owner@:rwp----------::allow group@:rwp----------::allow everyone@:r------------::allow The fact that you do golden output matching directly in the script to calculate "checks_succeeded" and "checks_failed" and then check those at the end of the test to set the exit status is completely unnecessary. The xfstests tsts harness does all this pattern matching for you via the golden output file. Using output files correctly make patches 3 and 4 in this series go away. > +# We cannot set the acl as another user > +runas -u 99 -g 99 > +check "setrichacl --set '99:rwc::allow' a || echo status: \$?" < +a: Operation not permitted > +status: 1 > +EOF In this case, check hides the fact the test attempts to run as a different user. now we've got rid of the "check" wrappers, we should just be doing: runas=$here/src/runas $runas -u 99 -g 99 -- setrichacl --set '99:rwc::allow' and capturing the expected error in the golden output file. This is the same as ACL and other permission tests in xfstests. e.g: $ git grep -l runas .gitignore src/Makefile tests/generic/026 tests/generic/093 tests/generic/099 tests/generic/237 tests/shared/051 $ > +cleanup() { > + status=$? > + checks_succeeded=`expr $checks_succeeded` > + checks_failed=`expr $checks_failed` > + checks_total=`expr $checks_succeeded + $checks_failed` > + if test $checks_total -gt 0 ; then > + if test $checks_failed -gt 0 && test $status -eq 0 ; then > + status=1 > + fi > + echo "$checks_total tests ($checks_succeeded passed," \ > + "$checks_failed failed)" > + fi > + if test -n "$tmpdir" ; then > + chmod -R u+rwx "$tmpdir" 2>/dev/null > + cd / && rm -rf "$tmpdir" > + fi > + exit $status > +} This is all completely unnecessary because the golden output matching done by the harness will fail the test if there is any error at all. The whole point of using xfstests is that you don't need to carry all this test harness install/run/test/check stuff in the tests themselves. This stuff should be no different to the posix ACL tests in structure (e.g. see generic/099), and should be just as simple to maintain..... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Nov 23 17:21:53 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 560D97F37 for ; Mon, 23 Nov 2015 17:21:53 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 47BC730405F for ; Mon, 23 Nov 2015 15:21:50 -0800 (PST) X-ASG-Debug-ID: 1448320906-04cb6c0cd21ab310001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id ZEMXkJdo6xVWep6m for ; Mon, 23 Nov 2015 15:21:47 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BtBwCunlNW/1bELHlegztTb4JfqR8MBgaLP4k8FwqFaAQCAoFITQEBAQEBAYELhDQBAQEDAQECNxwjBQsIAw4KCSUPBRQRAyETiCYHDr8pAQEBAQYCASAZhXSFRYk5BZZQhSSFIoJinFRjghEdgWoqNAGDYiWBIwEBAQ Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 24 Nov 2015 09:51:21 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a10Pk-0007FN-Es; Tue, 24 Nov 2015 10:20:52 +1100 Date: Tue, 24 Nov 2015 10:20:52 +1100 From: Dave Chinner To: Lutz Vieweg Cc: xfs@oss.sgi.com Subject: Re: Does XFS support cgroup writeback limiting? Message-ID: <20151123232052.GI26718@dastard> X-ASG-Orig-Subj: Re: Does XFS support cgroup writeback limiting? References: <5652F311.7000406@5t9.de> <20151123202619.GE26718@dastard> <56538E6A.6030203@5t9.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56538E6A.6030203@5t9.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448320906 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24662 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Nov 23, 2015 at 11:08:42PM +0100, Lutz Vieweg wrote: > On 11/23/2015 09:26 PM, Dave Chinner wrote: > >On Mon, Nov 23, 2015 at 12:05:53PM +0100, Lutz Vieweg wrote: > >>in June 2015 the article https://lwn.net/Articles/648292/ mentioned > >>upcoming support for limiting the quantity of buffered writes > >>using control groups. > >> > >>Back then, only ext4 was said to support that feature, with other > >>filesystems requiring some minor changes to do the same. > > > >Yes, changing the kernel code to support this functionality is about > >3 lines of code. > > Oh, I didn't expect it to be such a small change :-) > > >.... I haven't added support to XFS because I have no way of > >verifying the functionality works and that it continues to work as > >it is intended. i.e. we have no regression test coverage for cgroup > >aware writeback and until someone writes a set of regression tests > >that validate it's functionality works correctly it will remain this > >way. > > > >Writing code is trivial. Validating the code actually works as > >intended and doesn't silently get broken in the future is the > >hard part.... > > Understood, would you anyway be willing to publish such a > three-line-patch (outside of official releases) for those > daredevils (like me :-)) who'd be willing to give it a try? Just make the same mods to XFS as the ext4 patch here: http://www.spinics.net/lists/kernel/msg2014816.html > After all, this functionality is the last piece of the > "isolation"-puzzle that is missing from Linux to actually > allow fencing off virtual machines or containers from DOSing > each other by using up all I/O bandwidth... Yes, I know, but no-one seems to care enough about it to provide regression tests for it. Cheers, Dave. -- Dave Chinner david@fromorbit.com From wggmbyclzkm@korea.com Mon Nov 23 18:05:02 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: *** X-Spam-Status: No, score=3.6 required=5.0 tests=HK_RANDOM_ENVFROM, HK_RANDOM_FROM,HTML_FONT_SIZE_LARGE,HTML_MESSAGE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E88AF7F37 for ; Mon, 23 Nov 2015 18:05:02 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id D9D918F8035 for ; Mon, 23 Nov 2015 16:04:59 -0800 (PST) X-ASG-Debug-ID: 1448323495-04cb6c0cd31abfb0001-NocioJ Received: from r-smtp6.korea.com (31-178-79-90.dynamic.chello.pl [31.178.79.90]) by cuda.sgi.com with ESMTP id mlRdgQvsZYYnEgO9 for ; Mon, 23 Nov 2015 16:04:56 -0800 (PST) X-Barracuda-Envelope-From: wggmbyclzkm@korea.com X-Barracuda-Apparent-Source-IP: 31.178.79.90 Content-Transfer-Encoding: 7bit Content-Type: multipart/alternative; boundary="----------264BCCE1A3B5B2848" MIME-Version: 1.0 Date: Tue, 24 Nov 2015 03:04:54 +0300 Subject: =?utf-8?B?0J7QsdGD0YfQtdC90LjQtSDQs9C+0YHQt9Cw0LrRg9C/0LrQsNC8INC/0L4gNDTQpNCXINC4IDIyM9Ck0Jc=?= X-Complaints-To: xfs@oss.sgi.com X-ASG-Orig-Subj: =?utf-8?B?0J7QsdGD0YfQtdC90LjQtSDQs9C+0YHQt9Cw0LrRg9C/0LrQsNC8INC/0L4gNDTQpNCXINC4IDIyM9Ck0Jc=?= To: xfs@oss.sgi.com From: "=?utf-8?B?0JPQvtGB0LfQsNC60YPQv9C60LgsINCz0L7RgdC30LDQutCw0LcsINGC0LXQvdC00LXRgNGL?=" List-Unsubscribe: golka.1987@mail.ru Message-ID: <021372157.20151124030454@APWSSWDRAQQ> Require-Recipient-Valid-Since: xfs@oss.sgi.com; Thu, 12 Mar 2015 05:32:11 +0000 X-Mailer: GetResponse 360 X-Barracuda-Connect: 31-178-79-90.dynamic.chello.pl[31.178.79.90] X-Barracuda-Start-Time: 1448323495 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_MJ1963, HTML_FONT_SIZE_LARGE, HTML_MESSAGE, RDNS_DYNAMIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24664 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_FONT_SIZE_LARGE BODY: HTML font size is large 0.00 HTML_MESSAGE BODY: HTML included in message 0.10 RDNS_DYNAMIC Delivered to trusted network by host with dynamic-looking rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 This is a multipart message in MIME format. ------------264BCCE1A3B5B2848 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 MIME-Version: 1.0 Date: Tue, 24 Nov 2015 03:04:54 +0300 =20 =20 3 =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F | =D0=B3. = =D0=9C=D0=BE=D1=81=D0=BA=D0=B2=D0=B0 (=D0=BF=D1=80=D0=BE=D0=BC=D0=BE=D0=BA=D0=BE=D0=B4:255)=20 = =D0=90=D0=BA=D0=BA=D1=80=D0=B5=D0=B4=D0=B8=D1=82=D0=BE=D0=B2=D0=B0=D0=BD=D0= =BD=D1=8B=D0=B9 =D0=A3=D1=87=D0=B5=D0=B1=D0=BD=D1=8B=D0=B9 = =D1=86=D0=B5=D0=BD=D1=82=D1=80 = =D0=BF=D1=80=D0=B8=D0=B3=D0=BB=D0=B0=D1=88=D0=B0=D0=B5=D1=82 = =D0=BD=D0=B0 =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D0=BE =D1=82=D0=B5=D0=BC=D0=B5: 44-=D0=A4=D0=97 =D0=B8 223-=D0=A4=D0=97: =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F =D0=B2 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B0=D1=85. =D0=94=D0=BB=D1=8F: = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9 =D0=B8 = =D1=81=D0=BF=D0=B5=D1=86=D0=B8=D0=B0=D0=BB=D0=B8=D1=81=D1=82=D0=BE=D0=B2,= =D0=BE=D1=82=D0=B2=D0=B5=D1=87=D0=B0=D1=8E=D1=89=D0=B8=D1=85 = =D0=B7=D0=B0 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B5 =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA, = =D1=87=D0=BB=D0=B5=D0=BD=D0=BE=D0=B2 =D0=9A=D0=BE=D0=BC=D0=B8=D1=81=D1=81=D0=B8=D0=B9 = =D0=B7=D0=B0=D0=BA=D0=B0=D0=B7=D1=87=D0=B8=D0=BA=D0=B0, = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=BB=D1=83=D0=B6=D0=B1=D1=8B = (=D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D1=8B=D1=85 = =D1=83=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D1=8F=D1=8E=D1=89=D0=B8=D1=85), = =D0=BE=D1=82=D0=B4=D0=B5=D0=BB=D0=BE=D0=B2 =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA, = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9 =D0=BA=D0=BE=D0=BC=D0=BF=D0=B0=D0=BD=D0=B8=D0=B9, = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9 =D0=B8 = =D1=81=D0=BF=D0=B5=D1=86=D0=B8=D0=B0=D0=BB=D0=B8=D1=81=D1=82=D0=BE=D0=B2 = =D1=82=D0=B5=D0=BD=D0=B4=D0=B5=D1=80=D0=BD=D1=8B=D1=85 = =D0=BE=D1=82=D0=B4=D0=B5=D0=BB=D0=BE=D0=B2, = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9 =D1=8E=D1=80=D0=B8=D0=B4=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D1=85 = =D0=BE=D1=82=D0=B4=D0=B5=D0=BB=D0=BE=D0=B2 =D0=B8 = =D0=BE=D1=82=D0=B4=D0=B5=D0=BB=D0=BE=D0=B2 = =D0=BF=D1=80=D0=BE=D0=B4=D0=B0=D0=B6 = =D0=BA=D0=BE=D0=BC=D0=BF=D0=B0=D0=BD=D0=B8=D0=B9-=D0=BF=D0=BE=D1=81=D1=82= =D0=B0=D0=B2=D1=89=D0=B8=D0=BA=D0=BE=D0=B2 = (=D0=BF=D0=BE=D0=B4=D1=80=D1=8F=D0=B4=D1=87=D0=B8=D0=BA=D0=BE=D0=B2, = =D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0=B9)= . =D0=97=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D0=B5 = =D0=BF=D1=80=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D1=81=D1=8F =D1=81 = 10:00 =D0=B4=D0=BE 17:30 =D0=90=D0=B4=D1=80=D0=B5=D1=81 = =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F: = =D0=BC. =D0=91=D0=B0=D1=83=D0=BC=D0=B0=D0=BD=D1=81=D0=BA=D0=B0=D1=8F, = =D1=83=D0=BB. = =D0=91=D0=B0=D1=83=D0=BC=D0=B0=D0=BD=D1=81=D0=BA=D0=B0=D1=8F, =D0=B4.6, = =D1=81=D1=82=D1=80.2. =D0=9F=D0=BE=D0=B4=D1=80=D0=BE=D0=B1=D0=BD=D0=B0=D1=8F = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D1=8F =D0=B8 = =D1=80=D0=B5=D0=B3=D0=B8=D1=81=D1=82=D1=80=D0=B0=D1=86=D0=B8=D1=8F = =D0=BF=D0=BE =D1=82=D0=B5=D0=BB=D0=B5=D1=84=D0=BE=D0=BD=D1=83: 8 = =D0=BA=D0=BE=D0=B4 =D0=B3=D0=BE=D1=80=D0=BE=D0=B4=D0=B0 (495) = =D1=82=D0=B5=D0=BB.: 961 - 00 - =D0=978 =20 =20 =20 =20 =D0=9E=D0=BF=D0=B8=D1=81=D0=B0=D0=BD=D0=B8=D0=B5 = =D0=BF=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D1=8B: =20 1. =D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F =D0=B2 = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0= =B8 =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=BF=D0=BE = =D1=84=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=BC=D1=83 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D1=83 =E2=84=96 44-=D0=A4=D0=97 "=D0=9E =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5 =D0=B2 = =D1=81=D1=84=D0=B5=D1=80=D0=B5 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA = =D1=82=D0=BE=D0=B2=D0=B0=D1=80=D0=BE=D0=B2, = =D1=80=D0=B0=D0=B1=D0=BE=D1=82, =D1=83=D1=81=D0=BB=D1=83=D0=B3 = =D0=B4=D0=BB=D1=8F = =D0=BE=D0=B1=D0=B5=D1=81=D0=BF=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B3=D0=BE=D1=81=D1=83=D0=B4=D0=B0=D1=80=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0= =BD=D1=8B=D1=85 =D0=B8 = =D0=BC=D1=83=D0=BD=D0=B8=D1=86=D0=B8=D0=BF=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D1= =85 =D0=BD=D1=83=D0=B6=D0=B4" (=D0=9A=D0=A1).=20 =20 -=D0=98=D1=82=D0=BE=D0=B3=D0=B8 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D1=8B =D0=BF=D0=BE 44-=D0=A4=D0=97 =D0=B2 = 2014 =D0=B3=D0=BE=D0=B4=D1=83 =D0=B8 = =D0=BF=D0=B5=D1=80=D1=81=D0=BF=D0=B5=D0=BA=D1=82=D0=B8=D0=B2=D1=8B = =D1=80=D0=B0=D0=B7=D0=B2=D0=B8=D1=82=D0=B8=D1=8F = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D1=8B = -=D0=9F=D0=BB=D0=B0=D0=BD=D0=B8=D1=80=D1=83=D0=B5=D0=BC=D1=8B=D0=B5 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F 44-=D0=A4=D0=97 = =D0=B2 2015 =D0=B3=D0=BE=D0=B4=D1=83: = =D1=8D=D0=BB=D0=B5=D0=BA=D1=82=D1=80=D0=BE=D0=BD=D0=BD=D1=8B=D0=B5 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8, = =D1=80=D0=B5=D1=84=D0=BE=D1=80=D0=BC=D0=B0 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8C=D0=BD=D1=8B=D1=85 =D0=BE=D1=80=D0=B3=D0=B0=D0=BD=D0=BE=D0=B2, = =D0=BF=D0=BE=D0=B4=D0=B4=D0=B5=D1=80=D0=B6=D0=BA=D0=B0 = =D0=BE=D1=82=D0=B5=D1=87=D0=B5=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D0= =B3=D0=BE = =D0=BF=D1=80=D0=BE=D0=B8=D0=B7=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D1= =8F = -=D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B9 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =E2=84=96 44-=D0=A4=D0=97 =D0=B2 = =D1=80=D0=B5=D0=B4=D0=B0=D0=BA=D1=86=D0=B8=D0=B8 =D0=BE=D1=82 13 = =D0=B8=D1=8E=D0=BB=D1=8F 2015 =D0=B3. -=D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F =D0=B2 = =D0=91=D1=8E=D0=B4=D0=B6=D0=B5=D1=82=D0=BD=D0=BE=D0=BC = =D0=BA=D0=BE=D0=B4=D0=B5=D0=BA=D1=81=D0=B5 = (=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =E2=84=96 25-=D0=A4=D0=97), = =D0=93=D1=80=D0=B0=D0=B6=D0=B4=D0=B0=D0=BD=D1=81=D0=BA=D0=BE=D0=BC = =D0=BA=D0=BE=D0=B4=D0=B5=D0=BA=D1=81=D0=B5 = (=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =E2=84=96 42-=D0=A4=D0=97)=20 = -=D0=97=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C= =D0=BD=D0=BE=D0=B5 = =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D1=80=D0=B8=D0=BE=D1=80=D0=B8=D1=82=D0=B5=D1=82=D0=B0 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8 = =D0=BF=D1=80=D0=BE=D0=BC=D1=8B=D1=88=D0=BB=D0=B5=D0=BD=D0=BD=D0=BE=D0=B9 = =D0=BF=D1=80=D0=BE=D0=B4=D1=83=D0=BA=D1=86=D0=B8=D0=B8, = =D0=BF=D1=80=D0=BE=D0=B8=D0=B7=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=BD=D0=BE=D0= =B9 =D0=BD=D0=B0 = =D1=82=D0=B5=D1=80=D1=80=D0=B8=D1=82=D0=BE=D1=80=D0=B8=D0=B8 = =D0=A0=D0=A4 (=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =E2=84=96 488-=D0=A4=D0=97 = =D0=BE=D1=82 31 =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2014 =D0=B3.) = -=D0=92=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=88=D1=82=D1=80=D0=B0=D1=84=D0=BE=D0=B2 =D0=B8 = =D0=B4=D0=B8=D1=81=D0=BA=D0=B2=D0=B0=D0=BB=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1= =86=D0=B8=D0=B8 =D0=B7=D0=B0 = =D0=BD=D0=B5=D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BE=D0=B1=D1=8F=D0=B7=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2,= = =D0=BF=D1=80=D0=B5=D0=B4=D1=83=D1=81=D0=BC=D0=BE=D1=82=D1=80=D0=B5=D0=BD=D0= =BD=D1=8B=D1=85 =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BE=D0=BC = (=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =D0=BE=D1=82 13.07.2015 =D0=B3. = =E2=84=96 265-=D0=A4=D0=97) -=D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F = =D1=84=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B0 =D0=BE=D1=82 29 = =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2012 =D0=B3=D0=BE=D0=B4=D0=B0 = =E2=84=96 275-=D0=A4=D0=97 "=D0=9E = =D0=B3=D0=BE=D1=81=D1=83=D0=B4=D0=B0=D1=80=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0= =BD=D0=BE=D0=BC =D0=BE=D0=B1=D0=BE=D1=80=D0=BE=D0=BD=D0=BD=D0=BE=D0=BC = =D0=B7=D0=B0=D0=BA=D0=B0=D0=B7=D0=B5" -=D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D1=80=D0=B0=D0=B2=D0=B8=D0=BB =D0=B8 = =D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B9 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D1=83 = =D0=B5=D0=B4=D0=B8=D0=BD=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D0=B3=D0= =BE =D0=BF=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D1=89=D0=B8=D0=BA=D0=B0 = (=D0=BF=D0=BE=D0=B4=D1=80=D1=8F=D0=B4=D1=87=D0=B8=D0=BA=D0=B0, = =D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D1=8F) = =E2=80=93 = =D1=84=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B5 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D1=8B =D0=BE=D1=82 01.12.2014 =E2=84=96 = 416-=D0=A4=D0=97, =D0=BE=D1=82 29 = =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2014 =D0=B3. =E2=84=96 458-=D0=A4=D0=97, =D0=BE=D1=82 31 = =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2014 =D0=B3. =E2=84=96 = 498-=D0=A4=D0=97, =D0=BE=D1=82 31 = =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2014 =D0=B3. =E2=84=96 = 519-=D0=A4=D0=97, =D0=BE=D1=82 08 =D0=BC=D0=B0=D1=80=D1=82=D0=B0 2015 = =D0=B3. =E2=84=96 48-=D0=A4=D0=97, =D0=BE=D1=82 13 = =D0=B8=D1=8E=D0=BB=D1=8F 2015 =D0=B3. =E2=84=96 227-=D0=A4=D0=97=20 -=D0=9D=D0=BE=D0=B2=D1=8B=D0=B5 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D1=8B=D0=B5 = =D0=B0=D0=BA=D1=82=D1=8B, = =D0=BF=D1=80=D0=B8=D0=BD=D1=8F=D1=82=D1=8B=D0=B5 =D0=B2 = =D1=80=D0=B0=D0=B7=D0=B2=D0=B8=D1=82=D0=B8=D0=B5 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B0 =E2=84=9644-=D0=A4=D0=97; = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BF=D1=80=D0=B8=D0=BD=D1=8F=D1=82=D1=8B=D1=85 =D1=80=D0=B0=D0=BD=D0=B5=D0=B5 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D1=8B=D1=85 = =D0=B0=D0=BA=D1=82=D0=BE=D0=B2 -=D0=9F=D0=BB=D0=B0=D0=BD =D0=B8 = =D0=BF=D0=B5=D1=80=D1=81=D0=BF=D0=B5=D0=BA=D1=82=D0=B8=D0=B2=D1=8B = =D0=BF=D1=80=D0=B8=D0=BD=D1=8F=D1=82=D0=B8=D1=8F = =D0=BF=D0=BE=D0=B4=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BD=D1=8B=D1=85 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D1=8B=D1=85 = =D0=B0=D0=BA=D1=82=D0=BE=D0=B2 =D0=B2 2015 =D0=B3=D0=BE=D0=B4=D1=83 -=D0=9E=D1=82=D0=BC=D0=B5=D0=BD=D0=B0 = =D1=81=D1=82=D0=B0=D1=82=D0=B8=D1=81=D1=82=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0= =B8=D1=85 =D0=BE=D1=82=D1=87=D0=B5=D1=82=D0=BE=D0=B2 =E2=84=96 = 1-=D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82 =D0=B8 =E2=84=96 = 1-=D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8 = (=D0=BF=D1=80=D0=B8=D0=BA=D0=B0=D0=B7 = =D0=A0=D0=BE=D1=81=D1=81=D1=82=D0=B0=D1=82=D0=B0 =D0=BE=D1=82 15.05.2015 = =D0=B3. =E2=84=96 226) = -=D0=A0=D0=B0=D0=B7=D1=8A=D1=8F=D1=81=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F = =D0=9C=D0=B8=D0=BD=D1=8D=D0=BA=D0=BE=D0=BD=D0=BE=D0=BC=D1=80=D0=B0=D0=B7=D0= =B2=D0=B8=D1=82=D0=B8=D1=8F, =D0=A4=D0=90=D0=A1, = =D0=9C=D0=B8=D0=BD=D1=84=D0=B8=D0=BD=D0=B0 =D0=BF=D0=BE = =D1=81=D0=BB=D0=BE=D0=B6=D0=BD=D1=8B=D0=BC = =D0=B2=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D0=B0=D0=BC = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1= =8F =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA -=D0=A1=D1=83=D0=B4=D0=B5=D0=B1=D0=BD=D0=B0=D1=8F =D0=B8 = =D0=B0=D0=B4=D0=BC=D0=B8=D0=BD=D0=B8=D1=81=D1=82=D1=80=D0=B0=D1=82=D0=B8=D0= =B2=D0=BD=D0=B0=D1=8F =D0=BF=D1=80=D0=B0=D0=BA=D1=82=D0=B8=D0=BA=D0=B0 = (=D1=88=D1=82=D1=80=D0=B0=D1=84=D1=8B =D0=B8 =D0=BF=D0=B5=D0=BD=D0=B8 = =D0=B7=D0=B0 =D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=83=D1=81=D0=BB=D0=BE=D0=B2=D0=B8=D0=B9 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BE=D0=B2, = =D0=BE=D0=B4=D0=BD=D0=BE=D1=81=D1=82=D0=BE=D1=80=D0=BE=D0=BD=D0=BD=D0=B8=D0= =B9 =D0=BE=D1=82=D0=BA=D0=B0=D0=B7 =D0=BE=D1=82 = =D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BE=D0=B2, = =D0=B7=D0=B0=D0=BC=D0=B5=D0=BD=D0=B0 = =D0=BE=D0=B1=D0=B5=D1=81=D0=BF=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=B0, =D0=BE=D1=82=D0=BA=D0=BB=D0=BE=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B7=D0=B0=D1=8F=D0=B2=D0=BE=D0=BA, = =D1=81=D0=B3=D0=BE=D0=B2=D0=BE=D1=80 =D0=BD=D0=B0 = =D1=82=D0=BE=D1=80=D0=B3=D0=B0=D1=85, = =D0=B2=D0=B5=D0=B4=D0=BE=D0=BC=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D1=8B=D0= =B5 =D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D1=80=D0=BA=D0=B8 =D0=B8 = =D0=B4=D1=80.) =20 =20 2. =D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F =D0=B2 = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0= =B8 =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=BF=D0=BE = =D1=84=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=BC=D1=83 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D1=83 =E2=84=96 223-=D0=A4=D0=97 "=D0=9E = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B0=D1=85 =D1=82=D0=BE=D0=B2=D0=B0=D1=80=D0=BE=D0=B2, = =D1=80=D0=B0=D0=B1=D0=BE=D1=82, =D1=83=D1=81=D0=BB=D1=83=D0=B3 = =D0=BE=D1=82=D0=B4=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=B2=D0=B8=D0=B4=D0=B0=D0=BC=D0=B8 = =D1=8E=D1=80=D0=B8=D0=B4=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D1=85 = =D0=BB=D0=B8=D1=86".=20 =20 -=D0=97=D0=B0=D0=BA=D0=BE=D0=BD =E2=84=96 223-=D0=A4=D0=97 =D0=B2 = =D1=80=D0=B5=D0=B4=D0=B0=D0=BA=D1=86=D0=B8=D0=B8 =D0=BE=D1=82 13 = =D0=B8=D1=8E=D0=BB=D1=8F 2015 =D0=B3. = -=D0=9E=D1=81=D0=BE=D0=B1=D0=B5=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0=B8 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1= =8F =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=BF=D1=80=D0=B8 = =D1=80=D0=B5=D0=B0=D0=BB=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B8 = =D0=B8=D0=BD=D0=B2=D0=B5=D1=81=D1=82=D0=B8=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D1= =8B=D1=85 =D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=BE=D0=B2 -=D0=9F=D0=BE=D0=BD=D1=8F=D1=82=D0=B8=D0=B5 = =D0=B8=D0=BD=D0=B2=D0=B5=D1=81=D1=82=D0=B8=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0= =BE=D0=B3=D0=BE =D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=B0 =D0=B2 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B5 =E2=84=96 223-=D0=A4=D0=97 = -=D0=94=D0=BE=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D0=BD= =D1=8B=D0=B5 = =D0=BE=D0=B1=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0=B8 = =D0=B7=D0=B0=D0=BA=D0=B0=D0=B7=D1=87=D0=B8=D0=BA=D0=BE=D0=B2 =D0=B8 = =D0=B8=D0=BD=D1=8B=D1=85 = =D1=8E=D1=80=D0=B8=D0=B4=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D1=85 = =D0=BB=D0=B8=D1=86 =D0=BF=D1=80=D0=B8 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B8 =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=B2 = =D1=80=D0=B0=D0=BC=D0=BA=D0=B0=D1=85 = =D1=80=D0=B5=D0=B0=D0=BB=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B8 = =D0=B8=D0=BD=D0=B2=D0=B5=D1=81=D1=82=D0=B8=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0= =BE=D0=B3=D0=BE =D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=B0 = -=D0=9A=D0=BE=D0=BE=D1=80=D0=B4=D0=B8=D0=BD=D0=B0=D1=86=D0=B8=D0=BE=D0=BD= =D0=BD=D1=8B=D0=B9 =D0=BE=D1=80=D0=B3=D0=B0=D0=BD = =D0=9F=D1=80=D0=B0=D0=B2=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2=D0= =B0 =D0=BF=D0=BE = =D0=BE=D0=B1=D0=B5=D1=81=D0=BF=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D1=8E = =D0=B7=D0=B0=D0=BA=D0=B0=D0=B7=D1=87=D0=B8=D0=BA=D0=BE=D0=B2 = =D0=BF=D1=80=D0=BE=D0=B4=D1=83=D0=BA=D1=86=D0=B8=D0=B5=D0=B9 = =D0=BC=D0=B0=D1=88=D0=B8=D0=BD=D0=BE=D1=81=D1=82=D1=80=D0=BE=D0=B5=D0=BD=D0= =B8=D1=8F =D0=BF=D1=80=D0=B8 = =D1=80=D0=B5=D0=B0=D0=BB=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B8 = =D0=B8=D0=BD=D0=B2=D0=B5=D1=81=D1=82=D0=B8=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D1= =8B=D1=85 =D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=BE=D0=B2: = =D1=86=D0=B5=D0=BB=D0=B8 =D0=B8 =D0=B7=D0=B0=D0=B4=D0=B0=D1=87=D0=B8 = =D1=81=D0=BE=D0=B7=D0=B4=D0=B0=D0=BD=D0=B8=D1=8F; =D0=BF=D0=BE=D0=BB=D0=BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B8=D1=8F = -=D0=9F=D0=B5=D1=80=D1=81=D0=BF=D0=B5=D0=BA=D1=82=D0=B8=D0=B2=D1=8B = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B0 223-=D0=A4=D0=97: = =D0=BE=D0=B3=D1=80=D0=B0=D0=BD=D0=B8=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B2=D1=8B=D0=B1=D0=BE=D1=80=D0=B0 = =D1=81=D0=BF=D0=BE=D1=81=D0=BE=D0=B1=D0=BE=D0=B2 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8, = =D0=BE=D1=82=D0=B1=D0=BE=D1=80 =D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=82=D0=BE=D1=80=D0=BE=D0=B2 = =D1=8D=D0=BB=D0=B5=D0=BA=D1=82=D1=80=D0=BE=D0=BD=D0=BD=D1=8B=D1=85 = =D0=BF=D0=BB=D0=BE=D1=89=D0=B0=D0=B4=D0=BE=D0=BA, = =D0=B2=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=82=D0=B8=D0=BF=D0=BE=D0=B2=D1=8B=D1=85 = =D0=BF=D0=BE=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D0=B9 =D0=BE = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B5, = =D1=80=D0=B0=D1=81=D1=88=D0=B8=D1=80=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B2=D0=BE=D0=B7=D0=BC=D0=BE=D0=B6=D0=BD=D0=BE=D1=81=D1=82=D0=B5=D0=B9 = =D0=B4=D0=BB=D1=8F = =D0=BE=D0=B1=D0=B6=D0=B0=D0=BB=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA, = =D0=B2=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=B4=D1=83=D1=80=D0=BD=D1=8B=D1=85 = =D0=BD=D0=BE=D1=80=D0=BC =D0=B4=D0=BB=D1=8F = =D0=BA=D0=BE=D0=BD=D0=BA=D1=83=D1=80=D0=B5=D0=BD=D1=82=D0=BD=D1=8B=D1=85 =D1=81=D0=BF=D0=BE=D1=81=D0=BE=D0=B1=D0=BE=D0=B2 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8 -=D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D0=BE=D1=80=D1=8F=D0=B4=D0=BA=D0=B0 = =D0=BF=D0=BB=D0=B0=D0=BD=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=B2 2015-16 = =D0=B3=D0=BE=D0=B4=D0=B0=D1=85. = =D0=9F=D0=BB=D0=B0=D0=BD=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D1=83 =D1=81=D1=83=D0=B1=D1=8A=D0=B5=D0=BA=D1=82=D0=BE=D0=B2 = =D0=BC=D0=B0=D0=BB=D0=BE=D0=B3=D0=BE =D0=B8 = =D1=81=D1=80=D0=B5=D0=B4=D0=BD=D0=B5=D0=B3=D0=BE = =D0=BF=D1=80=D0=B5=D0=B4=D0=BF=D1=80=D0=B8=D0=BD=D0=B8=D0=BC=D0=B0=D1=82=D0= =B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2=D0=B0 -=D0=9E=D1=86=D0=B5=D0=BD=D0=BA=D0=B0 =D0=B8 = =D0=BC=D0=BE=D0=BD=D0=B8=D1=82=D0=BE=D1=80=D0=B8=D0=BD=D0=B3 = =D1=81=D0=BE=D0=BE=D1=82=D0=B2=D0=B5=D1=82=D1=81=D1=82=D0=B2=D0=B8=D1=8F = =D0=BF=D0=BB=D0=B0=D0=BD=D0=BE=D0=B2 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8, = =D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=BE=D0=B2 = =D0=BF=D0=BB=D0=B0=D0=BD=D0=BE=D0=B2, = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=BF=D0=BB=D0=B0=D0=BD=D0=BE=D0=B2 =D0=B8 =D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=BE=D0=B2 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9 =D0=B2 = =D1=87=D0=B0=D1=81=D1=82=D0=B8 = =D1=81=D0=BE=D0=BE=D1=82=D0=B2=D0=B5=D1=82=D1=81=D1=82=D0=B2=D0=B8=D1=8F.= = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D1=83 =D0=BE = =D1=80=D0=B0=D0=B7=D0=B2=D0=B8=D1=82=D0=B8=D0=B8 = =D0=BC=D0=B0=D0=BB=D0=BE=D0=B3=D0=BE =D0=B8 = =D1=81=D1=80=D0=B5=D0=B4=D0=BD=D0=B5=D0=B3=D0=BE = =D0=BF=D1=80=D0=B5=D0=B4=D0=BF=D1=80=D0=B8=D0=BD=D0=B8=D0=BC=D0=B0=D1=82=D0= =B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2=D0=B0 -=D0=A2=D0=B8=D0=BF=D0=BE=D0=B2=D1=8B=D0=B5 = =D0=BF=D0=BE=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D1=8F =D0=BE = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D1=87=D0=BD=D1=8B=D1=85 = =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=B4=D1=83=D1=80=D0=B0=D1=85 = (=D0=9F=D1=80=D0=B8=D0=BA=D0=B0=D0=B7 = =D0=A0=D0=BE=D1=81=D0=B8=D0=BC=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=B0 = =D0=BE=D1=82 24.12.2014 =D0=B3. =E2=84=96 515, = =D0=9F=D0=BE=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B5 = =D0=9F=D1=80=D0=B0=D0=B2=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2=D0= =B0 =D0=9C=D0=9E =D0=BE=D1=82 19 = =D0=B0=D0=B2=D0=B3=D1=83=D1=81=D1=82=D0=B0 2014 =D0=B3. =E2=84=96 = 666/31) = -=D0=9E=D0=B1=D1=8F=D0=B7=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D0=B5= =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8 =D1=83 = =D1=81=D1=83=D0=B1=D1=8A=D0=B5=D0=BA=D1=82=D0=BE=D0=B2 = =D0=BC=D0=B0=D0=BB=D0=BE=D0=B3=D0=BE =D0=B8 = =D1=81=D1=80=D0=B5=D0=B4=D0=BD=D0=B5=D0=B3=D0=BE = =D0=BF=D1=80=D0=B5=D0=B4=D0=BF=D1=80=D0=B8=D0=BD=D0=B8=D0=BC=D0=B0=D1=82=D0= =B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2=D0=B0 = (=D0=BF=D0=BE=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8= =D0=B5 =D0=BE=D1=82 11 =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2014 = =D0=B3. =E2=84=96 1352). =D0=A1=D0=BF=D0=BE=D1=81=D0=BE=D0=B1=D1=8B = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D1=83 = =D0=A1=D0=9C=D0=B8=D0=A1=D0=9F. = =D0=9E=D0=B1=D1=8F=D0=B7=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D0=B5 =D1=82=D1=80=D0=B5=D0=B1=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F = =D0=BA =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B0=D0=BC. = =D0=9E=D1=82=D1=87=D0=B5=D1=82=D0=BD=D0=BE=D1=81=D1=82=D1=8C =D0=BE = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B0=D1=85 =D1=83 = =D0=A1=D0=9C=D0=B8=D0=A1=D0=9F -=D0=A0=D0=B5=D0=B5=D1=81=D1=82=D1=80 = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=BE=D0=B2 =D0=BD=D0=B0 = =D0=BE=D1=84=D0=B8=D1=86=D0=B8=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=BC = =D1=81=D0=B0=D0=B9=D1=82=D0=B5 =D1=81 1 = =D1=8F=D0=BD=D0=B2=D0=B0=D1=80=D1=8F 2015 =D0=B3.: = =D1=81=D1=82=D1=80=D1=83=D0=BA=D1=82=D1=83=D1=80=D0=B0, = =D1=81=D0=BE=D0=B4=D0=B5=D1=80=D0=B6=D0=B0=D0=BD=D0=B8=D0=B5, =D1=82=D1=80=D0=B5=D0=B1=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F = (=D0=BF=D0=BE=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8= =D0=B5 =D0=BE=D1=82 31 =D0=BE=D0=BA=D1=82=D1=8F=D0=B1=D1=80=D1=8F 2014 = =D0=B3. =E2=84=96 1132, =D0=BF=D1=80=D0=B8=D0=BA=D0=B0=D0=B7 = =D0=9C=D0=B8=D0=BD=D1=84=D0=B8=D0=BD=D0=B0 =D0=BE=D1=82 29.12.2014 =E2=84=96 173=D0=BD) -=D0=98=D1=81=D0=BA=D0=BB=D1=8E=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B8=D0=B7 = =D1=82=D1=80=D0=B5=D0=B1=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F =D0=BE = =D1=80=D0=B0=D0=B7=D0=BC=D0=B5=D1=89=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=B8 =D0=BE = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B5 =D0=BD=D0=B0 = =D0=BE=D1=84=D0=B8=D1=86=D0=B8=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=BC = =D1=81=D0=B0=D0=B9=D1=82=D0=B5 (=D0=B2 =D0=95=D0=98=D0=A1) - = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B9 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =D0=BE=D1=82 13 =D0=B8=D1=8E=D0=BB=D1=8F = 2015 =D0=B3. =E2=84=96 249-=D0=A4=D0=97, = =D0=A0=D0=B0=D1=81=D0=BF=D0=BE=D1=80=D1=8F=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=9F=D1=80=D0=B0=D0=B2=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2=D0= =B0 =D0=A0=D0=A4 =D0=BE=D1=82 30 =D0=B8=D1=8E=D0=BD=D1=8F 2015 =D0=B3. =E2=84=96 = 1247-=D1=80 =20 =20 =20 =D0=A3=D1=87=D0=B0=D1=81=D1=82=D0=B8=D0=B5 = =D1=81=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D1=8F=D0=B5=D1=82: 11800 = =D1=80. =D0=A1=D0=BAu=D0=B4=D0=BAu (=D0=BE=D1=82 =D0=B4=D0=B2=D1=83=D1=85 = =D1=87=D0=B5=D0=BB=D0=BE=D0=B2=D0=B5=D0=BA =E2=80=93 10%, =D0=BE=D1=82 = =D1=82=D1=80=D0=B5=D1=85 =D0=B8 =D0=B1=D0=BE=D0=BB=D0=B5=D0=B5 =E2=80=93 = 15 %). =D0=92=D1=85=D0=BE=D0=B4=D0=B8=D1=82 = =D0=BC=D0=B5=D1=82=D0=BE=D0=B4=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D0=B9 = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB, = =D0=BE=D0=B1=D0=B5=D0=B4=D1=8B, = =D0=BA=D0=BE=D1=84=D0=B5-=D0=BF=D0=B0=D1=83=D0=B7=D1=8B. =D0=9F=D0=BE = =D0=BE=D0=BA=D0=BE=D0=BD=D1=87=D0=B0=D0=BD=D0=B8=D1=8E = =D0=B7=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D1=8F =D0=92=D0=B0=D0=BC = =D0=B2=D1=8B=D0=B4=D0=B0=D0=B5=D1=82=D1=81=D1=8F = =D1=81=D0=B5=D1=80=D1=82=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=82.=20 ------------264BCCE1A3B5B2848 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=UTF-8 MIME-Version: 1.0 Date: Tue, 24 Nov 2015 03:04:54 +0300
               
     


3=20 =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F  | =D0=B3. = =D0=9C=D0=BE=D1=81=D0=BA=D0=B2=D0=B0
(=D0=BF=D1=80=D0=BE=D0=BC=D0=BE=D0=BA=D0=BE=D0=B4:255= )=20

=D0=90=D0=BA=D0=BA=D1=80=D0=B5=D0=B4=D0=B8=D1=82=D0=BE= =D0=B2=D0=B0=D0=BD=D0=BD=D1=8B=D0=B9 = =D0=A3=D1=87=D0=B5=D0=B1=D0=BD=D1=8B=D0=B9 = =D1=86=D0=B5=D0=BD=D1=82=D1=80=20 =D0=BF=D1=80=D0=B8=D0=B3=D0=BB=D0=B0=D1=88=D0=B0=D0=B5=D1=82 = =D0=BD=D0=B0 =D0=BE=D0=B1=D1=83=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D0=BE =D1=82=D0=B5=D0=BC=D0=B5:

44-=D0=A4=D0=97 =D0=B8=20 = 223-=D0=A4=D0=97:
=D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F= =D0=B2 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B0=D1=85.

=D0=94=D0=BB=D1=8F: = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB= =D0=B5=D0=B9 =D0=B8 = =D1=81=D0=BF=D0=B5=D1=86=D0=B8=D0=B0=D0=BB=D0=B8=D1=81=D1=82=D0=BE=D0=B2,= =20 =D0=BE=D1=82=D0=B2=D0=B5=D1=87=D0=B0=D1=8E=D1=89=D0=B8=D1=85 = =D0=B7=D0=B0 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B5 =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA, = =D1=87=D0=BB=D0=B5=D0=BD=D0=BE=D0=B2
=D0=9A=D0=BE=D0=BC=D0=B8=D1=81=D1= =81=D0=B8=D0=B9 =D0=B7=D0=B0=D0=BA=D0=B0=D0=B7=D1=87=D0=B8=D0=BA=D0=B0,=20 =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=BB=D1=83=D0=B6=D0=B1=D1=8B = (=D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D1=8B=D1=85 = =D1=83=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D1=8F=D1=8E=D1=89=D0=B8=D1=85),=20 = =D0=BE=D1=82=D0=B4=D0=B5=D0=BB=D0=BE=D0=B2
=D0=B7=D0=B0=D0=BA=D1=83=D0= =BF=D0=BE=D0=BA, = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9 =D0=BA=D0=BE=D0=BC=D0=BF=D0=B0=D0=BD=D0=B8=D0=B9, = =D1=80=D1=83=D0=BA=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0= =B9 =D0=B8 = =D1=81=D0=BF=D0=B5=D1=86=D0=B8=D0=B0=D0=BB=D0=B8=D1=81=D1=82=D0=BE=D0=B2 = =D1=82=D0=B5=D0=BD=D0=B4=D0=B5=D1=80=D0=BD=D1=8B=D1=85 = =D0=BE=D1=82=D0=B4=D0=B5=D0=BB=D0=BE=D0=B2,
=D1=80=D1=83=D0=BA=D0=BE=D0= =B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0=B9 = =D1=8E=D1=80=D0=B8=D0=B4=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D1=85 = =D0=BE=D1=82=D0=B4=D0=B5=D0=BB=D0=BE=D0=B2 =D0=B8 = =D0=BE=D1=82=D0=B4=D0=B5=D0=BB=D0=BE=D0=B2 = =D0=BF=D1=80=D0=BE=D0=B4=D0=B0=D0=B6=20 = =D0=BA=D0=BE=D0=BC=D0=BF=D0=B0=D0=BD=D0=B8=D0=B9-=D0=BF=D0=BE=D1=81=D1=82= =D0=B0=D0=B2=D1=89=D0=B8=D0=BA=D0=BE=D0=B2=20 = (=D0=BF=D0=BE=D0=B4=D1=80=D1=8F=D0=B4=D1=87=D0=B8=D0=BA=D0=BE=D0=B2,
=D0= =B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D0=B5=D0=B9).


=D0=97=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D0=B5=20 = =D0=BF=D1=80=D0=BE=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D1=81=D1=8F = =D1=81 10:00 =D0=B4=D0=BE 17:30

=D0=90=D0=B4=D1=80=D0=B5=D1=81 = =D0=BC=D0=B5=D1=80=D0=BE=D0=BF=D1=80=D0=B8=D1=8F=D1=82=D0=B8=D1=8F: =D0=BC.=20 =D0=91=D0=B0=D1=83=D0=BC=D0=B0=D0=BD=D1=81=D0=BA=D0=B0=D1=8F, = =D1=83=D0=BB. = =D0=91=D0=B0=D1=83=D0=BC=D0=B0=D0=BD=D1=81=D0=BA=D0=B0=D1=8F, =D0=B4.6, = =D1=81=D1=82=D1=80.2.

=D0=9F=D0=BE=D0=B4=D1=80=D0=BE=D0=B1= =D0=BD=D0=B0=D1=8F=20 =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D1=8F = =D0=B8 = =D1=80=D0=B5=D0=B3=D0=B8=D1=81=D1=82=D1=80=D0=B0=D1=86=D0=B8=D1=8F = =D0=BF=D0=BE =D1=82=D0=B5=D0=BB=D0=B5=D1=84=D0=BE=D0=BD=D1=83: = 8 =20 =D0=BA=D0=BE=D0=B4 = =D0=B3=D0=BE=D1=80=D0=BE=D0=B4=D0=B0  (495)  =D1=82=D0=B5=D0=BB.:  961 - 00 = -=20 =D0=978
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 =D0=9E=D0=BF=D0=B8=D1=81=D0=B0=D0=BD=D0=B8=D0=B5=20 = =D0=BF=D1=80=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D1=8B:
 <= /FONT>
 
 
 
 
 
 
 

1.=20 =D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F =D0=B2 = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0= =B8 =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=BF=D0=BE = =D1=84=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=BC=D1=83 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D1=83 =E2=84=96 44-=D0=A4=D0=97 "=D0=9E
=D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA= =D1=82=D0=BD=D0=BE=D0=B9 =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D0=B5 = =D0=B2 =D1=81=D1=84=D0=B5=D1=80=D0=B5 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA = =D1=82=D0=BE=D0=B2=D0=B0=D1=80=D0=BE=D0=B2,=20 =D1=80=D0=B0=D0=B1=D0=BE=D1=82, =D1=83=D1=81=D0=BB=D1=83=D0=B3 = =D0=B4=D0=BB=D1=8F = =D0=BE=D0=B1=D0=B5=D1=81=D0=BF=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D1=8F
=D0= =B3=D0=BE=D1=81=D1=83=D0=B4=D0=B0=D1=80=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD= =D1=8B=D1=85 =D0=B8 = =D0=BC=D1=83=D0=BD=D0=B8=D1=86=D0=B8=D0=BF=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D1= =85 =D0=BD=D1=83=D0=B6=D0=B4" (=D0=9A=D0=A1).

 
 
 
 
 
 
 
-=D0=98=D1=82=D0=BE=D0=B3=D0=B8 = =D1=80=D0=B0=D0=B1=D0=BE=D1=82=D1=8B =D0=BF=D0=BE 44-=D0=A4=D0=97 =D0=B2 = 2014 =D0=B3=D0=BE=D0=B4=D1=83 =D0=B8=20 =D0=BF=D0=B5=D1=80=D1=81=D0=BF=D0=B5=D0=BA=D1=82=D0=B8=D0=B2=D1=8B = =D1=80=D0=B0=D0=B7=D0=B2=D0=B8=D1=82=D0=B8=D1=8F = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BD=D0=BE=D0=B9 = =D1=81=D0=B8=D1=81=D1=82=D0=B5=D0=BC=D1=8B
-=D0=9F=D0=BB=D0=B0=D0=BD=D0= =B8=D1=80=D1=83=D0=B5=D0=BC=D1=8B=D0=B5 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F 44-=D0=A4=D0=97 = =D0=B2=20 2015 =D0=B3=D0=BE=D0=B4=D1=83: = =D1=8D=D0=BB=D0=B5=D0=BA=D1=82=D1=80=D0=BE=D0=BD=D0=BD=D1=8B=D0=B5 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8, = =D1=80=D0=B5=D1=84=D0=BE=D1=80=D0=BC=D0=B0 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=BE=D0=BB=D1=8C=D0=BD=D1=8B=D1=85
=D0= =BE=D1=80=D0=B3=D0=B0=D0=BD=D0=BE=D0=B2, = =D0=BF=D0=BE=D0=B4=D0=B4=D0=B5=D1=80=D0=B6=D0=BA=D0=B0=20 = =D0=BE=D1=82=D0=B5=D1=87=D0=B5=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D0= =B3=D0=BE = =D0=BF=D1=80=D0=BE=D0=B8=D0=B7=D0=B2=D0=BE=D0=B4=D0=B8=D1=82=D0=B5=D0=BB=D1= =8F
-=D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B9= =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =E2=84=96 44-=D0=A4=D0=97 =D0=B2 = =D1=80=D0=B5=D0=B4=D0=B0=D0=BA=D1=86=D0=B8=D0=B8 =D0=BE=D1=82=20 13 =D0=B8=D1=8E=D0=BB=D1=8F 2015 = =D0=B3.
-=D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F = =D0=B2 =D0=91=D1=8E=D0=B4=D0=B6=D0=B5=D1=82=D0=BD=D0=BE=D0=BC = =D0=BA=D0=BE=D0=B4=D0=B5=D0=BA=D1=81=D0=B5 = (=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =E2=84=96 25-=D0=A4=D0=97),=20 =D0=93=D1=80=D0=B0=D0=B6=D0=B4=D0=B0=D0=BD=D1=81=D0=BA=D0=BE=D0=BC = =D0=BA=D0=BE=D0=B4=D0=B5=D0=BA=D1=81=D0=B5 = (=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =E2=84=96 42-=D0=A4=D0=97) =
-=D0=97=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1= =8C=D0=BD=D0=BE=D0=B5 = =D1=83=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D1=80=D0=B8=D0=BE=D1=80=D0=B8=D1=82=D0=B5=D1=82=D0=B0 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8 = =D0=BF=D1=80=D0=BE=D0=BC=D1=8B=D1=88=D0=BB=D0=B5=D0=BD=D0=BD=D0=BE=D0=B9 = =D0=BF=D1=80=D0=BE=D0=B4=D1=83=D0=BA=D1=86=D0=B8=D0=B8,
=D0=BF=D1=80=D0= =BE=D0=B8=D0=B7=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=BD=D0=BE=D0=B9 = =D0=BD=D0=B0 = =D1=82=D0=B5=D1=80=D1=80=D0=B8=D1=82=D0=BE=D1=80=D0=B8=D0=B8=20 =D0=A0=D0=A4 (=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =E2=84=96 = 488-=D0=A4=D0=97 =D0=BE=D1=82 31 = =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2014 =D0=B3.) =
-=D0=92=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=88=D1=82=D1=80=D0=B0=D1=84=D0=BE=D0=B2 =D0=B8=20 = =D0=B4=D0=B8=D1=81=D0=BA=D0=B2=D0=B0=D0=BB=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1= =86=D0=B8=D0=B8 =D0=B7=D0=B0 = =D0=BD=D0=B5=D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BE=D0=B1=D1=8F=D0=B7=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2,= =20 = =D0=BF=D1=80=D0=B5=D0=B4=D1=83=D1=81=D0=BC=D0=BE=D1=82=D1=80=D0=B5=D0=BD=D0= =BD=D1=8B=D1=85
=D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BE= =D0=BC (=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =D0=BE=D1=82 13.07.2015 =D0=B3. = =E2=84=96=20 = 265-=D0=A4=D0=97)
-=D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1= =8F = =D1=84=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=B3=D0=BE = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B0 =D0=BE=D1=82 29 = =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2012 =D0=B3=D0=BE=D0=B4=D0=B0 = =E2=84=96 275-=D0=A4=D0=97=20 "=D0=9E = =D0=B3=D0=BE=D1=81=D1=83=D0=B4=D0=B0=D1=80=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0= =BD=D0=BE=D0=BC
=D0=BE=D0=B1=D0=BE=D1=80=D0=BE=D0=BD=D0=BD=D0=BE=D0=BC= = =D0=B7=D0=B0=D0=BA=D0=B0=D0=B7=D0=B5"
-=D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0= =B5=D0=BD=D0=B8=D0=B5 =D0=BF=D1=80=D0=B0=D0=B2=D0=B8=D0=BB =D0=B8 = =D0=BE=D1=81=D0=BD=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B9=20 =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D1=83 = =D0=B5=D0=B4=D0=B8=D0=BD=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D0=BE=D0=B3=D0= =BE =D0=BF=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D1=89=D0=B8=D0=BA=D0=B0 = (=D0=BF=D0=BE=D0=B4=D1=80=D1=8F=D0=B4=D1=87=D0=B8=D0=BA=D0=B0,
=D0=B8=D1= =81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5=D0=BB=D1=8F) =E2=80=93=20 =D1=84=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B5 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D1=8B =D0=BE=D1=82 01.12.2014 =E2=84=96 = 416-=D0=A4=D0=97, =D0=BE=D1=82 29 = =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2014 =D0=B3.=20 =E2=84=96
458-=D0=A4=D0=97, =D0=BE=D1=82 31 = =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2014 =D0=B3. =E2=84=96 = 498-=D0=A4=D0=97, =D0=BE=D1=82 31 = =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2014 =D0=B3. =E2=84=96=20 519-=D0=A4=D0=97, =D0=BE=D1=82 08 =D0=BC=D0=B0=D1=80=D1=82=D0=B0 = 2015 =D0=B3.
=E2=84=96 48-=D0=A4=D0=97, =D0=BE=D1=82 13 = =D0=B8=D1=8E=D0=BB=D1=8F 2015 =D0=B3. =E2=84=96 227-=D0=A4=D0=97=20
-=D0=9D=D0=BE=D0=B2=D1=8B=D0=B5 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D1=8B=D0=B5 = =D0=B0=D0=BA=D1=82=D1=8B, = =D0=BF=D1=80=D0=B8=D0=BD=D1=8F=D1=82=D1=8B=D0=B5 =D0=B2 = =D1=80=D0=B0=D0=B7=D0=B2=D0=B8=D1=82=D0=B8=D0=B5 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B0 =E2=84=9644-=D0=A4=D0=97; = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F=20 = =D0=BF=D1=80=D0=B8=D0=BD=D1=8F=D1=82=D1=8B=D1=85
=D1=80=D0=B0=D0=BD=D0= =B5=D0=B5 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D1=8B=D1=85 = =D0=B0=D0=BA=D1=82=D0=BE=D0=B2
-=D0=9F=D0=BB=D0=B0=D0=BD =D0=B8 = =D0=BF=D0=B5=D1=80=D1=81=D0=BF=D0=B5=D0=BA=D1=82=D0=B8=D0=B2=D1=8B = =D0=BF=D1=80=D0=B8=D0=BD=D1=8F=D1=82=D0=B8=D1=8F=20 =D0=BF=D0=BE=D0=B4=D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BD=D1=8B=D1=85 = =D0=BD=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B8=D0=B2=D0=BD=D1=8B=D1=85 = =D0=B0=D0=BA=D1=82=D0=BE=D0=B2 =D0=B2 2015 = =D0=B3=D0=BE=D0=B4=D1=83
-=D0=9E=D1=82=D0=BC=D0=B5=D0=BD=D0=B0 = =D1=81=D1=82=D0=B0=D1=82=D0=B8=D1=81=D1=82=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0= =B8=D1=85=20 =D0=BE=D1=82=D1=87=D0=B5=D1=82=D0=BE=D0=B2 =E2=84=96 = 1-=D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82 =D0=B8 =E2=84=96 = 1-=D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8 = (=D0=BF=D1=80=D0=B8=D0=BA=D0=B0=D0=B7 = =D0=A0=D0=BE=D1=81=D1=81=D1=82=D0=B0=D1=82=D0=B0 =D0=BE=D1=82 15.05.2015 = =D0=B3.
=E2=84=96=20 = 226)
-=D0=A0=D0=B0=D0=B7=D1=8A=D1=8F=D1=81=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F= = =D0=9C=D0=B8=D0=BD=D1=8D=D0=BA=D0=BE=D0=BD=D0=BE=D0=BC=D1=80=D0=B0=D0=B7=D0= =B2=D0=B8=D1=82=D0=B8=D1=8F, =D0=A4=D0=90=D0=A1, = =D0=9C=D0=B8=D0=BD=D1=84=D0=B8=D0=BD=D0=B0 =D0=BF=D0=BE = =D1=81=D0=BB=D0=BE=D0=B6=D0=BD=D1=8B=D0=BC = =D0=B2=D0=BE=D0=BF=D1=80=D0=BE=D1=81=D0=B0=D0=BC=20 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1= =8F
=D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA
-=D0=A1=D1=83=D0=B4=D0= =B5=D0=B1=D0=BD=D0=B0=D1=8F =D0=B8 = =D0=B0=D0=B4=D0=BC=D0=B8=D0=BD=D0=B8=D1=81=D1=82=D1=80=D0=B0=D1=82=D0=B8=D0= =B2=D0=BD=D0=B0=D1=8F =D0=BF=D1=80=D0=B0=D0=BA=D1=82=D0=B8=D0=BA=D0=B0 = (=D1=88=D1=82=D1=80=D0=B0=D1=84=D1=8B=20 =D0=B8 =D0=BF=D0=B5=D0=BD=D0=B8 =D0=B7=D0=B0 = =D0=BD=D0=B0=D1=80=D1=83=D1=88=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=83=D1=81=D0=BB=D0=BE=D0=B2=D0=B8=D0=B9 = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BE=D0=B2,
=D0=BE=D0= =B4=D0=BD=D0=BE=D1=81=D1=82=D0=BE=D1=80=D0=BE=D0=BD=D0=BD=D0=B8=D0=B9 = =D0=BE=D1=82=D0=BA=D0=B0=D0=B7 =D0=BE=D1=82=20 =D0=B8=D1=81=D0=BF=D0=BE=D0=BB=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=BE=D0=B2, = =D0=B7=D0=B0=D0=BC=D0=B5=D0=BD=D0=B0 = =D0=BE=D0=B1=D0=B5=D1=81=D0=BF=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D1=8F = =D0=BA=D0=BE=D0=BD=D1=82=D1=80=D0=B0=D0=BA=D1=82=D0=B0,
=D0=BE=D1=82=D0= =BA=D0=BB=D0=BE=D0=BD=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B7=D0=B0=D1=8F=D0=B2=D0=BE=D0=BA,=20 =D1=81=D0=B3=D0=BE=D0=B2=D0=BE=D1=80 =D0=BD=D0=B0 = =D1=82=D0=BE=D1=80=D0=B3=D0=B0=D1=85, = =D0=B2=D0=B5=D0=B4=D0=BE=D0=BC=D1=81=D1=82=D0=B2=D0=B5=D0=BD=D0=BD=D1=8B=D0= =B5 =D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D1=80=D0=BA=D0=B8 =D0=B8 = =D0=B4=D1=80.)
 
 
 
 
 
 
 

 

2.=20 =D0=98=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D1=8F =D0=B2 = =D1=80=D0=B5=D0=B3=D1=83=D0=BB=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0= =B8 =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=BF=D0=BE = =D1=84=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=BC=D1=83 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D1=83 =E2=84=96 223-=D0=A4=D0=97 "=D0=9E=20 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B0=D1=85
=D1=82=D0=BE=D0=B2=D0= =B0=D1=80=D0=BE=D0=B2, =D1=80=D0=B0=D0=B1=D0=BE=D1=82, = =D1=83=D1=81=D0=BB=D1=83=D0=B3 = =D0=BE=D1=82=D0=B4=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D0=BC=D0=B8 = =D0=B2=D0=B8=D0=B4=D0=B0=D0=BC=D0=B8 = =D1=8E=D1=80=D0=B8=D0=B4=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D1=85 = =D0=BB=D0=B8=D1=86".=20

 
 
 
 
 
 
 
-=D0=97=D0=B0=D0=BA=D0=BE=D0=BD =E2=84=96 223-=D0=A4=D0=97 = =D0=B2 =D1=80=D0=B5=D0=B4=D0=B0=D0=BA=D1=86=D0=B8=D0=B8 =D0=BE=D1=82 13 = =D0=B8=D1=8E=D0=BB=D1=8F=20 2015 = =D0=B3.
-=D0=9E=D1=81=D0=BE=D0=B1=D0=B5=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0= =B8 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D1= =8F =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=BF=D1=80=D0=B8 = =D1=80=D0=B5=D0=B0=D0=BB=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B8=20 = =D0=B8=D0=BD=D0=B2=D0=B5=D1=81=D1=82=D0=B8=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D1= =8B=D1=85 = =D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=BE=D0=B2
-=D0=9F=D0=BE=D0=BD=D1= =8F=D1=82=D0=B8=D0=B5 = =D0=B8=D0=BD=D0=B2=D0=B5=D1=81=D1=82=D0=B8=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0= =BE=D0=B3=D0=BE =D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=B0 =D0=B2 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B5 =E2=84=96=20 = 223-=D0=A4=D0=97
-=D0=94=D0=BE=D0=BF=D0=BE=D0=BB=D0=BD=D0=B8=D1=82=D0=B5= =D0=BB=D1=8C=D0=BD=D1=8B=D0=B5 = =D0=BE=D0=B1=D1=8F=D0=B7=D0=B0=D0=BD=D0=BD=D0=BE=D1=81=D1=82=D0=B8 = =D0=B7=D0=B0=D0=BA=D0=B0=D0=B7=D1=87=D0=B8=D0=BA=D0=BE=D0=B2 =D0=B8 = =D0=B8=D0=BD=D1=8B=D1=85 = =D1=8E=D1=80=D0=B8=D0=B4=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D1=85 = =D0=BB=D0=B8=D1=86=20 =D0=BF=D1=80=D0=B8 = =D0=BE=D1=81=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B8
=D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=B2 = =D1=80=D0=B0=D0=BC=D0=BA=D0=B0=D1=85 = =D1=80=D0=B5=D0=B0=D0=BB=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B8 = =D0=B8=D0=BD=D0=B2=D0=B5=D1=81=D1=82=D0=B8=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D0= =BE=D0=B3=D0=BE=20 = =D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=B0
-=D0=9A=D0=BE=D0=BE=D1=80=D0= =B4=D0=B8=D0=BD=D0=B0=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D1=8B=D0=B9 = =D0=BE=D1=80=D0=B3=D0=B0=D0=BD = =D0=9F=D1=80=D0=B0=D0=B2=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2=D0= =B0 =D0=BF=D0=BE = =D0=BE=D0=B1=D0=B5=D1=81=D0=BF=D0=B5=D1=87=D0=B5=D0=BD=D0=B8=D1=8E = =D0=B7=D0=B0=D0=BA=D0=B0=D0=B7=D1=87=D0=B8=D0=BA=D0=BE=D0=B2=20 = =D0=BF=D1=80=D0=BE=D0=B4=D1=83=D0=BA=D1=86=D0=B8=D0=B5=D0=B9
=D0=BC=D0= =B0=D1=88=D0=B8=D0=BD=D0=BE=D1=81=D1=82=D1=80=D0=BE=D0=B5=D0=BD=D0=B8=D1=8F= =D0=BF=D1=80=D0=B8 = =D1=80=D0=B5=D0=B0=D0=BB=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B8 = =D0=B8=D0=BD=D0=B2=D0=B5=D1=81=D1=82=D0=B8=D1=86=D0=B8=D0=BE=D0=BD=D0=BD=D1= =8B=D1=85 =D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=BE=D0=B2: = =D1=86=D0=B5=D0=BB=D0=B8=20 =D0=B8 =D0=B7=D0=B0=D0=B4=D0=B0=D1=87=D0=B8 = =D1=81=D0=BE=D0=B7=D0=B4=D0=B0=D0=BD=D0=B8=D1=8F;
=D0=BF=D0=BE=D0=BB=D0= =BD=D0=BE=D0=BC=D0=BE=D1=87=D0=B8=D1=8F
-=D0=9F=D0=B5=D1=80=D1=81=D0=BF= =D0=B5=D0=BA=D1=82=D0=B8=D0=B2=D1=8B = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=B0 223-=D0=A4=D0=97:=20 =D0=BE=D0=B3=D1=80=D0=B0=D0=BD=D0=B8=D1=87=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=B2=D1=8B=D0=B1=D0=BE=D1=80=D0=B0 = =D1=81=D0=BF=D0=BE=D1=81=D0=BE=D0=B1=D0=BE=D0=B2 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8, = =D0=BE=D1=82=D0=B1=D0=BE=D1=80
=D0=BE=D0=BF=D0=B5=D1=80=D0=B0=D1=82=D0= =BE=D1=80=D0=BE=D0=B2 = =D1=8D=D0=BB=D0=B5=D0=BA=D1=82=D1=80=D0=BE=D0=BD=D0=BD=D1=8B=D1=85=20 =D0=BF=D0=BB=D0=BE=D1=89=D0=B0=D0=B4=D0=BE=D0=BA, = =D0=B2=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5 = =D1=82=D0=B8=D0=BF=D0=BE=D0=B2=D1=8B=D1=85 = =D0=BF=D0=BE=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D0=B9 =D0=BE = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B5, = =D1=80=D0=B0=D1=81=D1=88=D0=B8=D1=80=D0=B5=D0=BD=D0=B8=D0=B5
=D0=B2=D0= =BE=D0=B7=D0=BC=D0=BE=D0=B6=D0=BD=D0=BE=D1=81=D1=82=D0=B5=D0=B9=20 =D0=B4=D0=BB=D1=8F = =D0=BE=D0=B1=D0=B6=D0=B0=D0=BB=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA, = =D0=B2=D0=B2=D0=B5=D0=B4=D0=B5=D0=BD=D0=B8=D0=B5 = =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=B4=D1=83=D1=80=D0=BD=D1=8B=D1=85 = =D0=BD=D0=BE=D1=80=D0=BC =D0=B4=D0=BB=D1=8F=20 = =D0=BA=D0=BE=D0=BD=D0=BA=D1=83=D1=80=D0=B5=D0=BD=D1=82=D0=BD=D1=8B=D1=85<= BR>=D1=81=D0=BF=D0=BE=D1=81=D0=BE=D0=B1=D0=BE=D0=B2 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8
-=D0=98=D0=B7=D0=BC=D0=B5=D0= =BD=D0=B5=D0=BD=D0=B8=D0=B5 =D0=BF=D0=BE=D1=80=D1=8F=D0=B4=D0=BA=D0=B0 = =D0=BF=D0=BB=D0=B0=D0=BD=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D0=B2 2015-16 = =D0=B3=D0=BE=D0=B4=D0=B0=D1=85. = =D0=9F=D0=BB=D0=B0=D0=BD=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5 = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA = =D1=83
=D1=81=D1=83=D0=B1=D1=8A=D0=B5=D0=BA=D1=82=D0=BE=D0=B2 = =D0=BC=D0=B0=D0=BB=D0=BE=D0=B3=D0=BE =D0=B8=20 =D1=81=D1=80=D0=B5=D0=B4=D0=BD=D0=B5=D0=B3=D0=BE = =D0=BF=D1=80=D0=B5=D0=B4=D0=BF=D1=80=D0=B8=D0=BD=D0=B8=D0=BC=D0=B0=D1=82=D0= =B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2=D0=B0
-=D0=9E=D1=86=D0=B5=D0=BD=D0=BA= =D0=B0 =D0=B8 = =D0=BC=D0=BE=D0=BD=D0=B8=D1=82=D0=BE=D1=80=D0=B8=D0=BD=D0=B3 = =D1=81=D0=BE=D0=BE=D1=82=D0=B2=D0=B5=D1=82=D1=81=D1=82=D0=B2=D0=B8=D1=8F = =D0=BF=D0=BB=D0=B0=D0=BD=D0=BE=D0=B2=20 =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8, = =D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=BE=D0=B2 = =D0=BF=D0=BB=D0=B0=D0=BD=D0=BE=D0=B2, = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9 = =D0=BF=D0=BB=D0=B0=D0=BD=D0=BE=D0=B2 = =D0=B8
=D0=BF=D1=80=D0=BE=D0=B5=D0=BA=D1=82=D0=BE=D0=B2 = =D0=B8=D0=B7=D0=BC=D0=B5=D0=BD=D0=B5=D0=BD=D0=B8=D0=B9 =D0=B2 = =D1=87=D0=B0=D1=81=D1=82=D0=B8=20 = =D1=81=D0=BE=D0=BE=D1=82=D0=B2=D0=B5=D1=82=D1=81=D1=82=D0=B2=D0=B8=D1=8F.= = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD=D0=BE=D0=B4=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1= =81=D1=82=D0=B2=D1=83 =D0=BE = =D1=80=D0=B0=D0=B7=D0=B2=D0=B8=D1=82=D0=B8=D0=B8 = =D0=BC=D0=B0=D0=BB=D0=BE=D0=B3=D0=BE =D0=B8=20 = =D1=81=D1=80=D0=B5=D0=B4=D0=BD=D0=B5=D0=B3=D0=BE
=D0=BF=D1=80=D0=B5=D0= =B4=D0=BF=D1=80=D0=B8=D0=BD=D0=B8=D0=BC=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D1=81= =D1=82=D0=B2=D0=B0
-=D0=A2=D0=B8=D0=BF=D0=BE=D0=B2=D1=8B=D0=B5 = =D0=BF=D0=BE=D0=BB=D0=BE=D0=B6=D0=B5=D0=BD=D0=B8=D1=8F =D0=BE = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D1=87=D0=BD=D1=8B=D1=85=20 =D0=BF=D1=80=D0=BE=D1=86=D0=B5=D0=B4=D1=83=D1=80=D0=B0=D1=85 = (=D0=9F=D1=80=D0=B8=D0=BA=D0=B0=D0=B7 = =D0=A0=D0=BE=D1=81=D0=B8=D0=BC=D1=83=D1=89=D0=B5=D1=81=D1=82=D0=B2=D0=B0 = =D0=BE=D1=82 24.12.2014 =D0=B3. =E2=84=96
515, = =D0=9F=D0=BE=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0= =B5=20 = =D0=9F=D1=80=D0=B0=D0=B2=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2=D0= =B0 =D0=9C=D0=9E =D0=BE=D1=82 19 = =D0=B0=D0=B2=D0=B3=D1=83=D1=81=D1=82=D0=B0 2014 =D0=B3. =E2=84=96 = 666/31)
-=D0=9E=D0=B1=D1=8F=D0=B7=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1= =8B=D0=B5 =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B8=20 =D1=83 =D1=81=D1=83=D0=B1=D1=8A=D0=B5=D0=BA=D1=82=D0=BE=D0=B2 = =D0=BC=D0=B0=D0=BB=D0=BE=D0=B3=D0=BE =D0=B8 = =D1=81=D1=80=D0=B5=D0=B4=D0=BD=D0=B5=D0=B3=D0=BE = =D0=BF=D1=80=D0=B5=D0=B4=D0=BF=D1=80=D0=B8=D0=BD=D0=B8=D0=BC=D0=B0=D1=82=D0= =B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2=D0=B0
(=D0=BF=D0=BE=D1=81=D1=82=D0=B0= =D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8=D0=B5 =D0=BE=D1=82 11=20 =D0=B4=D0=B5=D0=BA=D0=B0=D0=B1=D1=80=D1=8F 2014 =D0=B3. =E2=84=96 = 1352). =D0=A1=D0=BF=D0=BE=D1=81=D0=BE=D0=B1=D1=8B = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BE=D0=BA =D1=83 = =D0=A1=D0=9C=D0=B8=D0=A1=D0=9F.=20 = =D0=9E=D0=B1=D1=8F=D0=B7=D0=B0=D1=82=D0=B5=D0=BB=D1=8C=D0=BD=D1=8B=D0=B5<= BR>=D1=82=D1=80=D0=B5=D0=B1=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F =D0=BA = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B0=D0=BC. = =D0=9E=D1=82=D1=87=D0=B5=D1=82=D0=BD=D0=BE=D1=81=D1=82=D1=8C =D0=BE = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B0=D1=85 =D1=83=20 = =D0=A1=D0=9C=D0=B8=D0=A1=D0=9F
-=D0=A0=D0=B5=D0=B5=D1=81=D1=82=D1=80 = =D0=B4=D0=BE=D0=B3=D0=BE=D0=B2=D0=BE=D1=80=D0=BE=D0=B2 =D0=BD=D0=B0 = =D0=BE=D1=84=D0=B8=D1=86=D0=B8=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=BC = =D1=81=D0=B0=D0=B9=D1=82=D0=B5 =D1=81 1 = =D1=8F=D0=BD=D0=B2=D0=B0=D1=80=D1=8F 2015 =D0=B3.:=20 =D1=81=D1=82=D1=80=D1=83=D0=BA=D1=82=D1=83=D1=80=D0=B0, = =D1=81=D0=BE=D0=B4=D0=B5=D1=80=D0=B6=D0=B0=D0=BD=D0=B8=D0=B5,
=D1=82=D1= =80=D0=B5=D0=B1=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F = (=D0=BF=D0=BE=D1=81=D1=82=D0=B0=D0=BD=D0=BE=D0=B2=D0=BB=D0=B5=D0=BD=D0=B8= =D0=B5 =D0=BE=D1=82 31 =D0=BE=D0=BA=D1=82=D1=8F=D0=B1=D1=80=D1=8F 2014 = =D0=B3.=20 =E2=84=96 1132, =D0=BF=D1=80=D0=B8=D0=BA=D0=B0=D0=B7 = =D0=9C=D0=B8=D0=BD=D1=84=D0=B8=D0=BD=D0=B0 =D0=BE=D1=82 = 29.12.2014
=E2=84=96 = 173=D0=BD)
-=D0=98=D1=81=D0=BA=D0=BB=D1=8E=D1=87=D0=B5=D0=BD=D0=B8=D1=8F= =D0=B8=D0=B7=20 =D1=82=D1=80=D0=B5=D0=B1=D0=BE=D0=B2=D0=B0=D0=BD=D0=B8=D1=8F = =D0=BE =D1=80=D0=B0=D0=B7=D0=BC=D0=B5=D1=89=D0=B5=D0=BD=D0=B8=D0=B8 = =D0=B8=D0=BD=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=86=D0=B8=D0=B8 =D0=BE = =D0=B7=D0=B0=D0=BA=D1=83=D0=BF=D0=BA=D0=B5 =D0=BD=D0=B0 = =D0=BE=D1=84=D0=B8=D1=86=D0=B8=D0=B0=D0=BB=D1=8C=D0=BD=D0=BE=D0=BC = =D1=81=D0=B0=D0=B9=D1=82=D0=B5=20 (=D0=B2
=D0=95=D0=98=D0=A1) - = =D0=A4=D0=B5=D0=B4=D0=B5=D1=80=D0=B0=D0=BB=D1=8C=D0=BD=D1=8B=D0=B9 = =D0=B7=D0=B0=D0=BA=D0=BE=D0=BD =D0=BE=D1=82 13 =D0=B8=D1=8E=D0=BB=D1=8F = 2015 =D0=B3. =E2=84=96 249-=D0=A4=D0=97, = =D0=A0=D0=B0=D1=81=D0=BF=D0=BE=D1=80=D1=8F=D0=B6=D0=B5=D0=BD=D0=B8=D0=B5 = = =D0=9F=D1=80=D0=B0=D0=B2=D0=B8=D1=82=D0=B5=D0=BB=D1=8C=D1=81=D1=82=D0=B2=D0= =B0 =D0=A0=D0=A4
=D0=BE=D1=82 30 =D0=B8=D1=8E=D0=BD=D1=8F 2015 = =D0=B3. =E2=84=96 1247-=D1=80
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 


=D0=A3=D1=87=D0=B0=D1=81=D1=82=D0=B8=D0=B5 = =D1=81=D0=BE=D1=81=D1=82=D0=B0=D0=B2=D0=BB=D1=8F=D0=B5=D1=82:=20 11800 =D1=80.
=D0=A1=D0=BAu=D0=B4=D0=BAu = (=D0=BE=D1=82 =D0=B4=D0=B2=D1=83=D1=85 = =D1=87=D0=B5=D0=BB=D0=BE=D0=B2=D0=B5=D0=BA =E2=80=93 10%, =D0=BE=D1=82 = =D1=82=D1=80=D0=B5=D1=85 =D0=B8=20 =D0=B1=D0=BE=D0=BB=D0=B5=D0=B5 =E2=80=93 15 = %).
=D0=92=D1=85=D0=BE=D0=B4=D0=B8=D1=82 = =D0=BC=D0=B5=D1=82=D0=BE=D0=B4=D0=B8=D1=87=D0=B5=D1=81=D0=BA=D0=B8=D0=B9 = =D0=BC=D0=B0=D1=82=D0=B5=D1=80=D0=B8=D0=B0=D0=BB, = =D0=BE=D0=B1=D0=B5=D0=B4=D1=8B, = =D0=BA=D0=BE=D1=84=D0=B5-=D0=BF=D0=B0=D1=83=D0=B7=D1=8B.
=D0=9F=D0=BE = =D0=BE=D0=BA=D0=BE=D0=BD=D1=87=D0=B0=D0=BD=D0=B8=D1=8E = =D0=B7=D0=B0=D0=BD=D1=8F=D1=82=D0=B8=D1=8F =D0=92=D0=B0=D0=BC = =D0=B2=D1=8B=D0=B4=D0=B0=D0=B5=D1=82=D1=81=D1=8F = =D1=81=D0=B5=D1=80=D1=82=D0=B8=D1=84=D0=B8=D0=BA=D0=B0=D1=82. =

 
 
 
 
 
 
 
 
 
 
 
 
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Wong" Cc: Christoph Hellwig , david@fromorbit.com, fstests@vger.kernel.org, xfs@oss.sgi.com, tao.peng@primarydata.com, linux-ext4@vger.kernel.org, Anna.Schumaker@netapp.com, linux-btrfs@vger.kernel.org Subject: Re: [PATCH 2/2] generic/15[78]: fix error messages in the golden output Message-ID: <20151124074159.GA32289@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/2] generic/15[78]: fix error messages in the golden output References: <20151121005001.20398.92856.stgit@birch.djwong.org> <20151121005014.20398.22316.stgit@birch.djwong.org> <20151121180644.GA23916@infradead.org> <20151123212533.GC10589@birch.djwong.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151123212533.GC10589@birch.djwong.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1448350921 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.70 X-Barracuda-Spam-Status: No, SCORE=0.70 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, MARKETING_SUBJECT, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24674 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Mon, Nov 23, 2015 at 01:25:33PM -0800, Darrick J. Wong wrote: > > Shouldn't these be Invalid argument just like the > > to a device case above or the clone case? > > I was trying to mirror the behavior of reflink, which spits out > EOPNOTSUPP when the destination isn't a regular file and EINVAL > when the source isn't a regular file. clone is called on the destination and takes the source from the ioctl argument. dedupe is called on the source and then opens the destinations, so they're not really comparable. Btrfs currently returns EACCES for non-dir, non-regular destinations which look wrong and I think EINVAL for a mismatch between source and destination types would make most sense. I've also prepared a btrfs patch for this and clone, but I'd like to have consensus on the exact error first. 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--===============1663350128==-- From jack@suse.cz Tue Nov 24 07:24:31 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 26CCF7F37 for ; Tue, 24 Nov 2015 07:24:31 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9DBC6AC004 for ; Tue, 24 Nov 2015 05:24:27 -0800 (PST) X-ASG-Debug-ID: 1448371464-04cb6c0cd11becf0001-NocioJ Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id SklfwTMroLHjb1Y7 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 24 Nov 2015 05:24:25 -0800 (PST) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 46D74AD07; Tue, 24 Nov 2015 13:22:59 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id D5E8982827; Tue, 24 Nov 2015 14:24:21 +0100 (CET) Date: Tue, 24 Nov 2015 14:24:21 +0100 From: Jan Kara To: Dmitry Monakhov Cc: linux-ext4@vger.kernel.org, jack@suse.cz, tytso@mit.edu, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH] ext4: fix race aio-dio vs freeze_fs Message-ID: <20151124132421.GG25232@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH] ext4: fix race aio-dio vs freeze_fs References: <1448294568-20892-1-git-send-email-dmonakhov@openvz.org> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="qDbXVdCdHGoSgWSk" Content-Disposition: inline In-Reply-To: <1448294568-20892-1-git-send-email-dmonakhov@openvz.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mx2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1448371465 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24679 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- --qDbXVdCdHGoSgWSk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon 23-11-15 20:02:48, Dmitry Monakhov wrote: > After freeze_fs was revoked (from Jan Kara) pages's write-back completion > is deffered before unwritten conversion, so explicit flush_unwritten_io() > was removed here: c724585b62411 > But we still may face deferred conversion for aio-dio case > # Trivial testcase > for ((i=0;i<60;i++));do fsfreeze -f /mnt ;sleep 1;fsfreeze -u /mnt;done & > fio --bs=4k --ioengine=libaio --iodepth=128 --size=1g --direct=1 \ > --runtime=60 --filename=/mnt/file --name=rand-write --rw=randwrite > NOTE: Sane testcase should be integrated to xfstests, but it requires > changes in common/* code, so let's use this this test at the moment. > > In order to fix this race we have to guard journal transaction with explicit > sb_{start,end}_intwrite() as we do with ext4_evict_inode here:8e8ad8a5 Well, this problem seems to suggest that we have the freeze protection for AIO writes wrong. We should call file_end_write() from aio_complete() and not from aio_run_iocb()... I believe XFS and other filesystems may have problems with this as well (CCed). Attached patch (so far only compile tested since my test machine is pondering on something else) should fix this. Honza -- Jan Kara SUSE Labs, CR --qDbXVdCdHGoSgWSk Content-Type: text/x-patch; charset=us-ascii Content-Disposition: attachment; filename="0001-aio-Fix-freeze-protection-of-aio-writes.patch" >From a7332719d80dc94c11d1c1cb32c88b7f25e1ae61 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 24 Nov 2015 14:19:22 +0100 Subject: [PATCH] aio: Fix freeze protection of aio writes Currently we dropped freeze protection of aio writes just after IO was submitted. Thus aio write could be in flight while the filesystem was frozen and that could result in unexpected situation like aio completion wanting to convert extent type on frozen filesystem. Testcase from Dmitry triggering this is like: for ((i=0;i<60;i++));do fsfreeze -f /mnt ;sleep 1;fsfreeze -u /mnt;done & fio --bs=4k --ioengine=libaio --iodepth=128 --size=1g --direct=1 \ --runtime=60 --filename=/mnt/file --name=rand-write --rw=randwrite Fix the problem by dropping freeze protection only once IO is completed in aio_complete(). Reported-by: Dmitry Monakhov Signed-off-by: Jan Kara --- fs/aio.c | 10 +++++++--- include/linux/fs.h | 1 + 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/aio.c b/fs/aio.c index 155f84253f33..3775030053f7 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -1065,6 +1065,9 @@ static void aio_complete(struct kiocb *kiocb, long res, long res2) unsigned tail, pos, head; unsigned long flags; + if (kiocb->ki_flags & IOCB_WRITE) + file_end_write(kiocb->ki_filp); + /* * Special case handling for sync iocbs: * - events go directly into the iocb for fast handling @@ -1449,13 +1452,14 @@ rw_common: len = ret; - if (rw == WRITE) + /* We drop freeze protection in aio_complete() */ + if (rw == WRITE) { file_start_write(file); + req->ki_flags |= IOCB_WRITE; + } ret = iter_op(req, &iter); - if (rw == WRITE) - file_end_write(file); kfree(iovec); break; diff --git a/include/linux/fs.h b/include/linux/fs.h index 3aa514254161..54af40ed6a26 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -319,6 +319,7 @@ struct writeback_control; #define IOCB_EVENTFD (1 << 0) #define IOCB_APPEND (1 << 1) #define IOCB_DIRECT (1 << 2) +#define IOCB_WRITE (1 << 3) struct kiocb { struct file *ki_filp; -- 2.1.4 --qDbXVdCdHGoSgWSk-- From BATV+01b2316b9c763e6c5797+4475+infradead.org+hch@bombadil.srs.infradead.org Tue Nov 24 10:07:31 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id F10A37F37 for ; Tue, 24 Nov 2015 10:07:31 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id E140D304039 for ; Tue, 24 Nov 2015 08:07:28 -0800 (PST) X-ASG-Debug-ID: 1448381246-04cb6c0cd21c3bf0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id gBtHeuxpflLYeJg7 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 24 Nov 2015 08:07:27 -0800 (PST) X-Barracuda-Envelope-From: BATV+01b2316b9c763e6c5797+4475+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1a1G7n-0006yA-Cj; Tue, 24 Nov 2015 16:07:23 +0000 Date: Tue, 24 Nov 2015 08:07:23 -0800 From: Christoph Hellwig To: Jan Kara Cc: Dmitry Monakhov , linux-ext4@vger.kernel.org, tytso@mit.edu, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH] ext4: fix race aio-dio vs freeze_fs Message-ID: <20151124160723.GA17466@infradead.org> X-ASG-Orig-Subj: Re: [PATCH] ext4: fix race aio-dio vs freeze_fs References: <1448294568-20892-1-git-send-email-dmonakhov@openvz.org> <20151124132421.GG25232@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151124132421.GG25232@quack.suse.cz> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1448381247 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24682 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Tue, Nov 24, 2015 at 02:24:21PM +0100, Jan Kara wrote: > Well, this problem seems to suggest that we have the freeze protection for > AIO writes wrong. We should call file_end_write() from aio_complete() and > not from aio_run_iocb()... I believe XFS and other filesystems may have > problems with this as well (CCed). Attached patch (so far only compile > tested since my test machine is pondering on something else) should fix > this. Sounds like one way to do it, but we'd really want a vfs_* helper for this so that it doesn't have to duplicated in other write_iter users like the loop driver, which seems to be missing file file_start_write/file_end_write entirely. From dmonakhovopenvz@gmail.com Tue Nov 24 10:55:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2A2597F37 for ; Tue, 24 Nov 2015 10:55:47 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 177148F8054 for ; Tue, 24 Nov 2015 08:55:43 -0800 (PST) X-ASG-Debug-ID: 1448384141-04cb6c0cd31c5060001-NocioJ Received: from mail-vk0-f51.google.com (mail-vk0-f51.google.com [209.85.213.51]) by cuda.sgi.com with ESMTP id O2Q7EJkSr7Aa2wZ4 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 24 Nov 2015 08:55:42 -0800 (PST) X-Barracuda-Envelope-From: dmonakhovopenvz@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.213.51 Received: by vkha189 with SMTP id a189so15828434vkh.2 for ; Tue, 24 Nov 2015 08:55:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=g67K2LHJK3qb0G83d7Rg7+Uar7MdJyXyYfxZmNacStk=; b=GsRaxmd6MngVxpzFL9i3qpCFcVkwe8ei3BezUh5dh5Ms1SfD4gnjqfUn4C+JN8Dzqj UGGyNJx+LNJvxI37Fh/3hP59p1GDI4d09UcjNZzmeGT3vvIyCXADEuQjI0BEHIhZywk8 CvXb7i5L2eK6j51Cy/O/b0b5SwAy62BEGdgMYVDEmCdJXKV/4x0o/2hnf2C5FhUB3Smj EsSoUhrbhc3GWxBJcdq9mZj8itaVKKrcEF7lEjMC//JIWNJjZ90A/7vMqw6i3TcxXzBw xDriyMEIhPkPyfkuyERGHs69mjx7gvK2UYoMCyLD+dnkGjJ5r+Gq7vO/VHnCe4ltKeJa vCmA== MIME-Version: 1.0 X-Received: by 10.31.156.78 with SMTP id f75mr27438899vke.40.1448384141217; Tue, 24 Nov 2015 08:55:41 -0800 (PST) Received: by 10.31.89.194 with HTTP; Tue, 24 Nov 2015 08:55:40 -0800 (PST) Received: by 10.31.89.194 with HTTP; Tue, 24 Nov 2015 08:55:40 -0800 (PST) In-Reply-To: <20151124132421.GG25232@quack.suse.cz> References: <1448294568-20892-1-git-send-email-dmonakhov@openvz.org> <20151124132421.GG25232@quack.suse.cz> Date: Tue, 24 Nov 2015 20:55:40 +0400 Message-ID: Subject: Re: [PATCH] ext4: fix race aio-dio vs freeze_fs From: Dmitry Monakhov X-ASG-Orig-Subj: Re: [PATCH] ext4: fix race aio-dio vs freeze_fs To: Jan Kara Cc: Dmitriy Monakhov , linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, tytso@mit.edu, linux-ext4@vger.kernel.org Content-Type: multipart/alternative; boundary=001a1140f5563c548005254c36a4 X-Barracuda-Connect: mail-vk0-f51.google.com[209.85.213.51] X-Barracuda-Start-Time: 1448384142 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24683 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --001a1140f5563c548005254c36a4 Content-Type: text/plain; charset=UTF-8 On Nov 24, 2015 16:25, "Jan Kara" wrote: > > On Mon 23-11-15 20:02:48, Dmitry Monakhov wrote: > > After freeze_fs was revoked (from Jan Kara) pages's write-back completion > > is deffered before unwritten conversion, so explicit flush_unwritten_io() > > was removed here: c724585b62411 > > But we still may face deferred conversion for aio-dio case > > # Trivial testcase > > for ((i=0;i<60;i++));do fsfreeze -f /mnt ;sleep 1;fsfreeze -u /mnt;done & > > fio --bs=4k --ioengine=libaio --iodepth=128 --size=1g --direct=1 \ > > --runtime=60 --filename=/mnt/file --name=rand-write --rw=randwrite > > NOTE: Sane testcase should be integrated to xfstests, but it requires > > changes in common/* code, so let's use this this test at the moment. > > > > In order to fix this race we have to guard journal transaction with explicit > > sb_{start,end}_intwrite() as we do with ext4_evict_inode here:8e8ad8a5 > > Well, this problem seems to suggest that we have the freeze protection for > AIO writes wrong. We should call file_end_write() from aio_complete() and > not from aio_run_iocb()... Yep. It was my first attempt to fix that issue, but unfortunately this trick will break lockdep. Caller will do file_start_write and exit to userspace. Lockdep treats such behaviour as bug (return to userspace with a lock held) There are two way to fix that 1) add specific 'long' lock primitive to lockdep 2) let sync_filesystems to wait pended aio-dio > I believe XFS and other filesystems may have > problems with this as well (CCed). Attached patch (so far only compile > tested since my test machine is pondering on something else) should fix > this. > > Honza > > -- > Jan Kara > SUSE Labs, CR --001a1140f5563c548005254c36a4 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable


On Nov 24, 2015 16:25, "Jan Kara" <jack@suse.cz> wrote:
>
> On Mon 23-11-15 20:02:48, Dmitry Monakhov wrote:
> > After freeze_fs was revoked (from Jan Kara) pages's write-bac= k completion
> > is deffered before unwritten conversion, so explicit flush_unwrit= ten_io()
> > was removed here: c724585b62411
> > But we still may face deferred conversion for aio-dio case
> > # Trivial testcase
> > for ((i=3D0;i<60;i++));do fsfreeze -f /mnt ;sleep 1;fsfreeze -= u /mnt;done &
> > fio --bs=3D4k --ioengine=3Dlibaio --iodepth=3D128 --size=3D1g --d= irect=3D1 \
> >=C2=A0 =C2=A0 =C2=A0--runtime=3D60 --filename=3D/mnt/file --name= =3Drand-write --rw=3Drandwrite
> > NOTE: Sane testcase should be integrated to xfstests, but it requ= ires
> > changes in common/* code, so let's use this this test at the = moment.
> >
> > In order to fix this race we have to guard journal transaction wi= th explicit
> > sb_{start,end}_intwrite()=C2=A0 as we do with ext4_evict_inode he= re:8e8ad8a5
>
> Well, this problem seems to suggest that we have the freeze protection= for
> AIO writes wrong. We should call file_end_write() from aio_complete() = and
> not from aio_run_iocb()...
Yep. It was my first attempt to fix that issue, but=C2=A0 unfortunately thi= s trick will break lockdep. Caller will do file_start_write and exit to use= rspace. Lockdep treats such behaviour as bug (return to userspace with a lo= ck held)

There are two way to fix that
1) add specific 'long' lock primitive to lockdep
2) let sync_filesystems to wait pended aio-dio

> I believe XFS and other filesystems may have
> problems with this as well (CCed). Attached patch (so far only compile=
> tested since my test machine is pondering on something else) should fi= x
> this.
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 Honza
>
> --
> Jan Kara <jack@suse.com> > SUSE Labs, CR

--001a1140f5563c548005254c36a4-- From yamato@redhat.com Wed Nov 25 02:52:50 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id ED2D97F37 for ; Wed, 25 Nov 2015 02:52:49 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6E111AC002 for ; Wed, 25 Nov 2015 00:52:49 -0800 (PST) X-ASG-Debug-ID: 1448441567-04cbb0605d213e30001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id XxTOTdVt5rGwGl2m (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 00:52:48 -0800 (PST) X-Barracuda-Envelope-From: yamato@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 9942CC0B7AA5; Wed, 25 Nov 2015 08:52:47 +0000 (UTC) Received: from x201.localdomain.com (dhcp-193-87.nrt.redhat.com [10.64.193.87]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAP8qkSU006834; Wed, 25 Nov 2015 03:52:46 -0500 From: Masatake YAMATO To: xfs@oss.sgi.com Cc: yamato@redhat.com Subject: [PATCH] xfs: send warning of project quota to userspace via netlink Date: Wed, 25 Nov 2015 17:52:41 +0900 X-ASG-Orig-Subj: [PATCH] xfs: send warning of project quota to userspace via netlink Message-Id: <1448441561-31849-1-git-send-email-yamato@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448441568 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Linux's quota subsystem has an ability to handle project quota. This commit just utilizes the ability from xfs side. Signed-off-by: Masatake YAMATO --- fs/xfs/xfs_trans_dquot.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c index ce78534..1a46544 100644 --- a/fs/xfs/xfs_trans_dquot.c +++ b/fs/xfs/xfs_trans_dquot.c @@ -572,12 +572,17 @@ xfs_quota_warn( struct xfs_dquot *dqp, int type) { - /* no warnings for project quotas - we just return ENOSPC later */ + enum quota_type t; + if (dqp->dq_flags & XFS_DQ_PROJ) - return; + t = PRJQUOTA; + else if (dqp->dq_flags & XFS_DQ_USER) + t = USRQUOTA; + else + t = GRPQUOTA; + quota_send_warning(make_kqid(&init_user_ns, - (dqp->dq_flags & XFS_DQ_USER) ? - USRQUOTA : GRPQUOTA, + t, be32_to_cpu(dqp->q_core.d_id)), mp->m_super->s_dev, type); } -- 2.5.0 From jack@suse.cz Wed Nov 25 03:19:23 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8DC347F37 for ; Wed, 25 Nov 2015 03:19:23 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id F0908AC002 for ; Wed, 25 Nov 2015 01:19:22 -0800 (PST) X-ASG-Debug-ID: 1448443159-04cbb0605c2151b0001-NocioJ Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id cEOYkEsTU84NiY4A (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 25 Nov 2015 01:19:20 -0800 (PST) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 92319AAC4; Wed, 25 Nov 2015 09:17:38 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id C880E82827; Wed, 25 Nov 2015 10:19:16 +0100 (CET) Date: Wed, 25 Nov 2015 10:19:16 +0100 From: Jan Kara To: Dmitry Monakhov Cc: Jan Kara , Dmitriy Monakhov , linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, tytso@mit.edu, linux-ext4@vger.kernel.org Subject: Re: [PATCH] ext4: fix race aio-dio vs freeze_fs Message-ID: <20151125091916.GL25232@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH] ext4: fix race aio-dio vs freeze_fs References: <1448294568-20892-1-git-send-email-dmonakhov@openvz.org> <20151124132421.GG25232@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mx2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1448443160 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24705 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue 24-11-15 20:55:40, Dmitry Monakhov wrote: > On Nov 24, 2015 16:25, "Jan Kara" wrote: > > On Mon 23-11-15 20:02:48, Dmitry Monakhov wrote: > > > After freeze_fs was revoked (from Jan Kara) pages's write-back > completion > > > is deffered before unwritten conversion, so explicit > flush_unwritten_io() > > > was removed here: c724585b62411 > > > But we still may face deferred conversion for aio-dio case > > > # Trivial testcase > > > for ((i=0;i<60;i++));do fsfreeze -f /mnt ;sleep 1;fsfreeze -u /mnt;done > & > > > fio --bs=4k --ioengine=libaio --iodepth=128 --size=1g --direct=1 \ > > > --runtime=60 --filename=/mnt/file --name=rand-write --rw=randwrite > > > NOTE: Sane testcase should be integrated to xfstests, but it requires > > > changes in common/* code, so let's use this this test at the moment. > > > > > > In order to fix this race we have to guard journal transaction with > explicit > > > sb_{start,end}_intwrite() as we do with ext4_evict_inode here:8e8ad8a5 > > > > Well, this problem seems to suggest that we have the freeze protection for > > AIO writes wrong. We should call file_end_write() from aio_complete() and > > not from aio_run_iocb()... > Yep. It was my first attempt to fix that issue, but unfortunately this > trick will break lockdep. Caller will do file_start_write and exit to > userspace. Lockdep treats such behaviour as bug (return to userspace with a > lock held) > > There are two way to fix that > 1) add specific 'long' lock primitive to lockdep The way we tell lockdep about transfer of context is that we just lie to lockdep and tell it that the lock got unlocked at appropriate place and then tell it we locked it again at another place. It is somewhat ugly but not that hard to do... Generally lockdep is a tool that should help but by no means it should be a reason for poor locking decisions just because lockdep cannot handle them. Honza -- Jan Kara SUSE Labs, CR From jack@suse.cz Wed Nov 25 04:25:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C2EC17F37 for ; Wed, 25 Nov 2015 04:25:09 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id AAF4C304032 for ; Wed, 25 Nov 2015 02:25:06 -0800 (PST) X-ASG-Debug-ID: 1448447102-04cbb0605c216850001-NocioJ Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id Fd7rXQQPTLyGEe5R (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 25 Nov 2015 02:25:03 -0800 (PST) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 890FAAC8C; Wed, 25 Nov 2015 10:23:22 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id C272A82827; Wed, 25 Nov 2015 11:25:00 +0100 (CET) Date: Wed, 25 Nov 2015 11:25:00 +0100 From: Jan Kara To: Christoph Hellwig Cc: Jan Kara , Dmitry Monakhov , linux-ext4@vger.kernel.org, tytso@mit.edu, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH] ext4: fix race aio-dio vs freeze_fs Message-ID: <20151125102500.GM25232@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH] ext4: fix race aio-dio vs freeze_fs References: <1448294568-20892-1-git-send-email-dmonakhov@openvz.org> <20151124132421.GG25232@quack.suse.cz> <20151124160723.GA17466@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151124160723.GA17466@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mx2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1448447103 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24707 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue 24-11-15 08:07:23, Christoph Hellwig wrote: > On Tue, Nov 24, 2015 at 02:24:21PM +0100, Jan Kara wrote: > > Well, this problem seems to suggest that we have the freeze protection for > > AIO writes wrong. We should call file_end_write() from aio_complete() and > > not from aio_run_iocb()... I believe XFS and other filesystems may have > > problems with this as well (CCed). Attached patch (so far only compile > > tested since my test machine is pondering on something else) should fix > > this. > > Sounds like one way to do it, but we'd really want a vfs_* helper for > this so that it doesn't have to duplicated in other write_iter users > like the loop driver, which seems to be missing file > file_start_write/file_end_write entirely. That is mostly a separate issue, isn't it? I guess you mean a helper like vfs_write_iter() that would get freeze protection and call ->write_iter()? And what about files which have ->write (or ->splice_write()) and don't end up calling ->write_iter? Also there is stuff like __kernel_write() which ends up calling ->write_iter() but e.g. kernel/acct.c: do_acct_process() wants to do it's own thing... So the current status is not ideal but I don't see how to make it substantially better... Honza -- Jan Kara SUSE Labs, CR From Vincent.Riera@imgtec.com Wed Nov 25 05:11:05 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 68E7F7F37 for ; Wed, 25 Nov 2015 05:11:05 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3D4B2304032 for ; Wed, 25 Nov 2015 03:11:02 -0800 (PST) X-ASG-Debug-ID: 1448449856-04cb6c0cd21e1c60001-NocioJ Received: from mailapp01.imgtec.com (mailapp01.imgtec.com [195.59.15.196]) by cuda.sgi.com with ESMTP id stORoI86coxJgNWe for ; Wed, 25 Nov 2015 03:10:56 -0800 (PST) X-Barracuda-Envelope-From: Vincent.Riera@imgtec.com X-Barracuda-Apparent-Source-IP: 195.59.15.196 Received: from hhmail02.hh.imgtec.org (unknown [10.100.10.20]) by Websense Email Security Gateway with ESMTPS id 206ED3EA90B4B for ; Wed, 25 Nov 2015 11:10:53 +0000 (GMT) Received: from LEMAIL01.le.imgtec.org (192.168.152.62) by hhmail02.hh.imgtec.org (10.100.10.20) with Microsoft SMTP Server (TLS) id 14.3.235.1; Wed, 25 Nov 2015 11:10:55 +0000 Received: from vriera-linux.le.imgtec.org (192.168.154.114) by LEMAIL01.le.imgtec.org (192.168.152.62) with Microsoft SMTP Server (TLS) id 14.3.210.2; Wed, 25 Nov 2015 11:10:54 +0000 From: Vicente Olivert Riera To: CC: Vicente Olivert Riera Subject: [PATCH xfsprogs] mdrestore: do not do dynamic linking of libtool libraries Date: Wed, 25 Nov 2015 11:10:38 +0000 X-ASG-Orig-Subj: [PATCH xfsprogs] mdrestore: do not do dynamic linking of libtool libraries Message-ID: <1448449838-47261-1-git-send-email-Vincent.Riera@imgtec.com> X-Mailer: git-send-email 2.4.10 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [192.168.154.114] X-Barracuda-Connect: mailapp01.imgtec.com[195.59.15.196] X-Barracuda-Start-Time: 1448449856 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24707 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- As explained in commit ece49daeff1a3cad765e106d678c608925c9d768, use -static-libtool-libs instead of -static to allow fallback to the dynamic linking for libuuid only. Otherwise the build will fail like this: ld: attempted static link of dynamic object `/usr/lib/libuuid.so' Signed-off-by: Vicente Olivert Riera --- mdrestore/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mdrestore/Makefile b/mdrestore/Makefile index 5171306..1b34a0e 100644 --- a/mdrestore/Makefile +++ b/mdrestore/Makefile @@ -10,7 +10,7 @@ CFILES = xfs_mdrestore.c LLDLIBS = $(LIBXFS) $(LIBRT) $(LIBPTHREAD) $(LIBUUID) LTDEPENDENCIES = $(LIBXFS) -LLDFLAGS = -static +LLDFLAGS = -static-libtool-libs default: depend $(LTCOMMAND) -- 2.4.10 From lvml@5t9.de Wed Nov 25 12:28:52 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id BE2DA7F37 for ; Wed, 25 Nov 2015 12:28:52 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 81AA930405F for ; Wed, 25 Nov 2015 10:28:49 -0800 (PST) X-ASG-Debug-ID: 1448476125-04bdf07f0a247030001-NocioJ Received: from app1b.xlhost.de (mailout173.xlhost.de [84.200.252.173]) by cuda.sgi.com with ESMTP id jCHXIsHMqMKxkUDC for ; Wed, 25 Nov 2015 10:28:45 -0800 (PST) X-Barracuda-Envelope-From: lvml@5t9.de X-Barracuda-Apparent-Source-IP: 84.200.252.173 Received: from [192.168.5.53] (barriere.frankfurter-softwarefabrik.de [217.11.197.1]) (Authenticated sender: lkv@5t9.de) by app1b.xlhost.de (Postfix) with ESMTPSA id D7FD3303E252; Wed, 25 Nov 2015 19:28:42 +0100 (CET) Message-ID: <5655FDDA.9050502@5t9.de> Date: Wed, 25 Nov 2015 19:28:42 +0100 From: Lutz Vieweg User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: Does XFS support cgroup writeback limiting? References: <5652F311.7000406@5t9.de> <20151123202619.GE26718@dastard> <56538E6A.6030203@5t9.de> <20151123232052.GI26718@dastard> X-ASG-Orig-Subj: Re: Does XFS support cgroup writeback limiting? In-Reply-To: <20151123232052.GI26718@dastard> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: quoted-printable X-Virus-Scanned: clamav-milter 0.98.1 at app1b.xlhost.de X-Virus-Status: Clean X-Barracuda-Connect: mailout173.xlhost.de[84.200.252.173] X-Barracuda-Start-Time: 1448476125 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24719 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 11/24/2015 12:20 AM, Dave Chinner wrote: > Just make the same mods to XFS as the ext4 patch here: > > http://www.spinics.net/lists/kernel/msg2014816.html I read at http://www.spinics.net/lists/kernel/msg2014819.html about this patch: > Journal data which is written by jbd2 worker is left alone by > this patch and will always be written out from the root cgroup. If the same was done for XFS, wouldn't this mean a malicious process could still stall other processes' attempts to write to the filesystem by performing arbitrary amounts of meta-data modifications in a tight loop? >> After all, this functionality is the last piece of the >> "isolation"-puzzle that is missing from Linux to actually >> allow fencing off virtual machines or containers from DOSing >> each other by using up all I/O bandwidth... > > Yes, I know, but no-one seems to care enough about it to provide > regression tests for it. Well, I could give it a try, if a shell script tinkering with control groups parameters (which requires root privileges and could easily stall the machine) would be considered adequate for the purpose. I would propose a test to be performed like this: 0) Identify a block device to test on. I guess some artificially speed-limited DM device would be best? Set the speed limit to X/100 MB per second, with X configurable. 1) Start 4 "good" plus 4 "evil" subprocesses competing for write-bandwidth on the block device. Assign the 4 "good" processes to two different control groups ("g1", = "g2"), assign the 4 "evil" processes to further two different control groups ("e1", "e2"), so 4 control groups in total, with 2 tasks each.= 2) Create 3 different XFS filesystem instances on the block device, one for access by only the "good" processes, on for access by only the "evil" processes, one for shared access by at least two "good" and two "evil" processes. 3) Behaviour of the processes: "Good" processes will attempt to write a configured amount of data (X MB) at 20% of the speed limit of the block device, modifyi= ng meta-data at a moderate rate (like creating/renaming/deleting files every few megabytes written). Half of the "good" processes write to their "good-only" filesystem, the other half writes to the "shared access" filesystem. Half of the "evil" processes will attempt to write as much data as possible into open files in a tight endless loop. The other half of the "evil" processes will permanently modify meta-data as quickly as possible, creating/renaming/deleting lots of files, also in a tight endless loop. Half of the "evil" processes writes to the "evil-only" filesystem, the other half writes to the "shared access" filesystem. 4) Test 1: Configure all 4 control groups to allow for the same buffered write rate percentage. The test is successful if all "good processes" terminate successfully= after a time not longer than it would take to write 10 times X MB to = the rate-limited block device. All processes to be killed after termination of all good processes or= some timeout. If the timeout is reached, the test is failed. 5) Test 2: Configure "e1" and "e2" to allow for "zero" buffered write rat= e. The test is successful if the "good processes" terminate successfully= after a time not longer than it would take to write 5 times X MB to t= he rate-limited block device. All processes to be killed after termination of all good processes or= some timeout. If the timeout is reached, the test is failed. 6) Cleanup: unmount test filesystems, remove rate-limited DM device, remo= ve control groups. What do you think, could this be a reasonable plan? Regards, Lutz Vieweg From bfoster@redhat.com Wed Nov 25 12:54:27 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 920837F37 for ; Wed, 25 Nov 2015 12:54:27 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 25B86AC002 for ; Wed, 25 Nov 2015 10:54:23 -0800 (PST) X-ASG-Debug-ID: 1448477661-04cbb0605e225550001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id G8qtfWOq48SH0zhx (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 10:54:22 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id D01E3130A for ; Wed, 25 Nov 2015 18:54:21 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAPIsLLO012159; Wed, 25 Nov 2015 13:54:21 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id EA4CD122406; Wed, 25 Nov 2015 13:54:19 -0500 (EST) Date: Wed, 25 Nov 2015 13:54:19 -0500 From: Brian Foster To: Masatake YAMATO Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: send warning of project quota to userspace via netlink Message-ID: <20151125185419.GA18719@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: send warning of project quota to userspace via netlink References: <1448441561-31849-1-git-send-email-yamato@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1448441561-31849-1-git-send-email-yamato@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448477662 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Nov 25, 2015 at 05:52:41PM +0900, Masatake YAMATO wrote: > Linux's quota subsystem has an ability to handle > project quota. This commit just utilizes the ability > from xfs side. > > Signed-off-by: Masatake YAMATO > --- Seems reasonable to me. A couple questions... how has this been tested? The original commit a210c1aa7 ("xfs: implement quota warnings via netlink") mentions that the xfstests quota tests with something listening for events was sufficient. Also, is the userspace support for this new? If so, what is the behavior if somebody runs a new kernel with this event and an old userspace? Other than that, just a couple aesthetic things.. > fs/xfs/xfs_trans_dquot.c | 13 +++++++++---- > 1 file changed, 9 insertions(+), 4 deletions(-) > > diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c > index ce78534..1a46544 100644 > --- a/fs/xfs/xfs_trans_dquot.c > +++ b/fs/xfs/xfs_trans_dquot.c > @@ -572,12 +572,17 @@ xfs_quota_warn( > struct xfs_dquot *dqp, > int type) > { > - /* no warnings for project quotas - we just return ENOSPC later */ > + enum quota_type t; > + The variable name should be lined up with the function parameter names. I'd prefer a more descriptive variable name as well (e.g., 'qtype'?). > if (dqp->dq_flags & XFS_DQ_PROJ) > - return; > + t = PRJQUOTA; > + else if (dqp->dq_flags & XFS_DQ_USER) > + t = USRQUOTA; > + else > + t = GRPQUOTA; > + > quota_send_warning(make_kqid(&init_user_ns, > - (dqp->dq_flags & XFS_DQ_USER) ? > - USRQUOTA : GRPQUOTA, > + t, This could probably get moved to the end of the previous line rather than it's own separate line now that the conditional is removed. We generally just want to keep lines within 80 columns. Brian > be32_to_cpu(dqp->q_core.d_id)), > mp->m_super->s_dev, type); > } > -- > 2.5.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Wed Nov 25 14:18:00 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9DBEA7F37 for ; Wed, 25 Nov 2015 14:18:00 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 898088F8040 for ; Wed, 25 Nov 2015 12:18:00 -0800 (PST) X-ASG-Debug-ID: 1448482678-04cb6c0cd11f0ba0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Sokv9AB6GvLt3M3V (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 12:17:59 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id DD69268E00 for ; Wed, 25 Nov 2015 20:17:58 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAPKHwMZ026348 for ; Wed, 25 Nov 2015 15:17:58 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 2792A122406; Wed, 25 Nov 2015 15:17:57 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 0/4] xfsprogs: log format fixes, db command Date: Wed, 25 Nov 2015 15:17:53 -0500 X-ASG-Orig-Subj: [PATCH 0/4] xfsprogs: log format fixes, db command Message-Id: <1448482677-44364-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448482679 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi all, This series includes a few fixes to log formatting/handling code in xfsprogs. Patch 1 fixes a minor issue in xfs_logprint. Patch 2 fixes the incorrect formatting issue with larger lsunit alignments noted in the previously posted torn log write detection series: http://oss.sgi.com/pipermail/xfs/2015-November/044845.html Patch 3 is mostly a refactor to allow the log format command to use variable sized records rather than unconditionally use 256kB records. Patch 4 adds the 'logformat' xfs_db command to facilitate testing of the log formatting mechanism. This has been lightly tested with xfstests, including via a couple forthcoming tests that take advantage of the logformat command. Thoughts, reviews, flames appreciated. Brian Brian Foster (4): logprint: use correct ext. header count for unaligned size libxfs: format the log with valid log record headers libxfs: conditionalize log format record size optimization db: add the logformat command copy/xfs_copy.c | 2 +- db/Makefile | 4 +- db/command.c | 2 + db/logformat.c | 149 ++++++++++++++++++++++++++++++++++++++++++++++++++++ db/logformat.h | 19 +++++++ db/metadump.c | 2 +- db/sb.c | 2 +- include/libxfs.h | 2 +- libxfs/rdwr.c | 89 ++++++++++++++++++++++++------- logprint/log_misc.c | 2 + mkfs/xfs_mkfs.c | 3 +- repair/phase2.c | 2 +- repair/xfs_repair.c | 2 +- 13 files changed, 251 insertions(+), 29 deletions(-) create mode 100644 db/logformat.c create mode 100644 db/logformat.h -- 2.1.0 From bfoster@redhat.com Wed Nov 25 14:18:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2888C7F37 for ; Wed, 25 Nov 2015 14:18:01 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id EC92B8F8050 for ; Wed, 25 Nov 2015 12:18:00 -0800 (PST) X-ASG-Debug-ID: 1448482679-04bdf07f0a2495a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 2o73r8aghEFHECb5 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 12:17:59 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 12D0F14CAB6 for ; Wed, 25 Nov 2015 20:17:59 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAPKHwuQ006976 for ; Wed, 25 Nov 2015 15:17:58 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 6424D122420; Wed, 25 Nov 2015 15:17:57 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 4/4] db: add the logformat command Date: Wed, 25 Nov 2015 15:17:57 -0500 X-ASG-Orig-Subj: [PATCH 4/4] db: add the logformat command Message-Id: <1448482677-44364-5-git-send-email-bfoster@redhat.com> In-Reply-To: <1448482677-44364-1-git-send-email-bfoster@redhat.com> References: <1448482677-44364-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448482679 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Add the new logformat command to format the log to a specified log cycle and/or log stripe unit. This command is primarily for testing purposes and is only available in expert mode. Signed-off-by: Brian Foster --- db/Makefile | 4 +- db/command.c | 2 + db/logformat.c | 149 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ db/logformat.h | 19 ++++++++ 4 files changed, 172 insertions(+), 2 deletions(-) create mode 100644 db/logformat.c create mode 100644 db/logformat.h diff --git a/db/Makefile b/db/Makefile index fb01bdd..8260da3 100644 --- a/db/Makefile +++ b/db/Makefile @@ -11,8 +11,8 @@ HFILES = addr.h agf.h agfl.h agi.h attr.h attrshort.h bit.h block.h bmap.h \ btblock.h bmroot.h check.h command.h convert.h debug.h \ dir2.h dir2sf.h dquot.h echo.h faddr.h field.h \ flist.h fprint.h frag.h freesp.h hash.h help.h init.h inode.h input.h \ - io.h malloc.h metadump.h output.h print.h quit.h sb.h sig.h strvec.h \ - text.h type.h write.h attrset.h symlink.h + io.h logformat.h malloc.h metadump.h output.h print.h quit.h sb.h \ + sig.h strvec.h text.h type.h write.h attrset.h symlink.h CFILES = $(HFILES:.h=.c) LSRCFILES = xfs_admin.sh xfs_ncheck.sh xfs_metadump.sh diff --git a/db/command.c b/db/command.c index 2189e00..3c17a1e 100644 --- a/db/command.c +++ b/db/command.c @@ -40,6 +40,7 @@ #include "inode.h" #include "input.h" #include "io.h" +#include "logformat.h" #include "metadump.h" #include "output.h" #include "print.h" @@ -131,6 +132,7 @@ init_commands(void) hash_init(); inode_init(); input_init(); + logformat_init(); io_init(); metadump_init(); output_init(); diff --git a/db/logformat.c b/db/logformat.c new file mode 100644 index 0000000..254f33d --- /dev/null +++ b/db/logformat.c @@ -0,0 +1,149 @@ +/* + * Copyright (c) 2015 Red Hat, Inc. + * All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libxfs.h" +#include "command.h" +#include "init.h" +#include "output.h" +#include "libxlog.h" + +#define MAX_LSUNIT 256 * 1024 /* max log buf. size */ + +static int +logformat_f(int argc, char **argv) +{ + xfs_daddr_t head_blk; + xfs_daddr_t tail_blk; + int logversion; + int lsunit = -1; + int cycle = -1; + int error; + int c; + + logversion = xfs_sb_version_haslogv2(&mp->m_sb) ? 2 : 1; + + while ((c = getopt(argc, argv, "c:s:")) != EOF) { + switch (c) { + case 'c': + cycle = strtol(optarg, NULL, 0); + if (cycle == 0) { + dbprintf("invalid cycle\n"); + return -1; + } + break; + case 's': + lsunit = strtol(optarg, NULL, 0); + /* + * The log stripe unit must be block aligned and no + * larger than 256k. + */ + if (lsunit > 1 && + (lsunit % mp->m_sb.sb_blocksize || + (logversion == 2 && lsunit > MAX_LSUNIT))) { + dbprintf("invalid log stripe unit\n"); + return -1; + } + break; + default: + dbprintf("invalid option\n"); + return -1; + } + } + + /* + * Check whether the log is dirty. This also determines the current log + * cycle if we have to use it by default below. + */ + memset(mp->m_log, 0, sizeof(struct xlog)); + mp->m_log->l_mp = mp; + mp->m_log->l_dev = mp->m_logdev_targp; + mp->m_log->l_logBBsize = XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks); + mp->m_log->l_logBBstart = XFS_FSB_TO_DADDR(mp, mp->m_sb.sb_logstart); + mp->m_log->l_sectBBsize = BBSIZE; + if (xfs_sb_version_hassector(&mp->m_sb)) + mp->m_log->l_sectBBsize <<= (mp->m_sb.sb_logsectlog - BBSHIFT); + mp->m_log->l_sectBBsize = BTOBB(mp->m_log->l_sectBBsize); + + error = xlog_find_tail(mp->m_log, &head_blk, &tail_blk); + if (error) { + dbprintf("could not find log head/tail\n"); + return -1; + } + if (head_blk != tail_blk) { + dbprintf(_( + "The log is dirty. Please mount to replay the log.\n")); + return -1; + } + + /* + * Use the current cycle and/or log stripe unit if either is not + * provided by the user. + */ + if (cycle < 0) + cycle = mp->m_log->l_curr_cycle; + if (lsunit < 0) + lsunit = mp->m_sb.sb_logsunit; + + dbprintf("Formatting the log to cycle %d, stripe unit %d bytes.\n", + cycle, lsunit); + error = libxfs_log_clear(mp->m_logdev_targp, NULL, + mp->m_log->l_logBBstart, + mp->m_log->l_logBBsize, + &mp->m_sb.sb_uuid, logversion, lsunit, + XLOG_FMT, cycle, false); + if (error) { + dbprintf("error formatting log - %d\n", error); + return error; + } + + return 0; +} + +static void +logformat_help(void) +{ + dbprintf(_( +"\n" +" The 'logformat' command reformats (clears) the log to the specified log\n" +" cycle and log stripe unit. If the log cycle is not specified, the log is\n" +" reformatted to the current cycle. If the log stripe unit is not specified,\n" +" the stripe unit from the filesystem superblock is used.\n" +"\n" + )); +} + +static const struct cmdinfo logformat_cmd = { + .name = "logformat", + .altname = NULL, + .cfunc = logformat_f, + .argmin = 0, + .argmax = 4, + .canpush = 0, + .args = N_("[-c cycle] [-s sunit]"), + .oneline = N_("reformat the log"), + .help = logformat_help, +}; + +void +logformat_init(void) +{ + if (!expert_mode) + return; + + add_command(&logformat_cmd); +} diff --git a/db/logformat.h b/db/logformat.h new file mode 100644 index 0000000..f9763ee --- /dev/null +++ b/db/logformat.h @@ -0,0 +1,19 @@ +/* + * Copyright (c) 2015 Red Hat, Inc. + * All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +void logformat_init(void); -- 2.1.0 From bfoster@redhat.com Wed Nov 25 14:18:00 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BACF67F3F for ; Wed, 25 Nov 2015 14:18:00 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9B7D58F8050 for ; Wed, 25 Nov 2015 12:18:00 -0800 (PST) X-ASG-Debug-ID: 1448482678-04bdf07f07249590001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id l0MkAFIoSlA8m3Uf (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 12:17:59 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id DE7F9C0B7AA2 for ; Wed, 25 Nov 2015 20:17:58 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAPKHwjf015467 for ; Wed, 25 Nov 2015 15:17:58 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 3C5311223E9; Wed, 25 Nov 2015 15:17:57 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 1/4] logprint: use correct ext. header count for unaligned size Date: Wed, 25 Nov 2015 15:17:54 -0500 X-ASG-Orig-Subj: [PATCH 1/4] logprint: use correct ext. header count for unaligned size Message-Id: <1448482677-44364-2-git-send-email-bfoster@redhat.com> In-Reply-To: <1448482677-44364-1-git-send-email-bfoster@redhat.com> References: <1448482677-44364-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448482679 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 A log record has 1 record header and up to 7 additional extended record headers depending on the size of the record. This is required for log record packing. A header is required for each 32k of record data. The header count for a particular record is fixed, based on the log buffer size (h_size) specified in the record header. logprint calculates the expected extended header count based on h_size, but does not account for a log buffer size not aligned with 32k. This results in spurious invalid header count errors for an otherwise valid log. This can be reproduced by mounting a filesystem with '-o logbsize=16k' and running xfs_logprint after a subsequent unmount. Update xlog_print_extended_headers() to incorporate a non-32k aligned log buffer size in the expected extended record header count calculation. This is consistent with how the header count is calculated in the kernel. Signed-off-by: Brian Foster --- logprint/log_misc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/logprint/log_misc.c b/logprint/log_misc.c index 4cdcbec..7378fe1 100644 --- a/logprint/log_misc.c +++ b/logprint/log_misc.c @@ -1294,6 +1294,8 @@ xlog_print_extended_headers( num_required = howmany(len, XLOG_HEADER_CYCLE_SIZE); num_hdrs = be32_to_cpu(hdr->h_size) / XLOG_HEADER_CYCLE_SIZE; + if (be32_to_cpu(hdr->h_size) % XLOG_HEADER_CYCLE_SIZE) + num_hdrs++; if (num_required > num_hdrs) { print_xlog_bad_reqd_hdrs((*blkno)-1, num_required, num_hdrs); -- 2.1.0 From bfoster@redhat.com Wed Nov 25 14:18:04 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id AF3817F5D for ; Wed, 25 Nov 2015 14:18:04 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2EF43AC006 for ; Wed, 25 Nov 2015 12:18:01 -0800 (PST) X-ASG-Debug-ID: 1448482679-04cbb0605e2271e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 1jsnWAozvPBAPjeu (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 12:17:59 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 100FE71 for ; Wed, 25 Nov 2015 20:17:59 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAPKHw0v006972 for ; Wed, 25 Nov 2015 15:17:58 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 576881228A6; Wed, 25 Nov 2015 15:17:57 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 2/4] libxfs: format the log with valid log record headers Date: Wed, 25 Nov 2015 15:17:55 -0500 X-ASG-Orig-Subj: [PATCH 2/4] libxfs: format the log with valid log record headers Message-Id: <1448482677-44364-3-git-send-email-bfoster@redhat.com> In-Reply-To: <1448482677-44364-1-git-send-email-bfoster@redhat.com> References: <1448482677-44364-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448482679 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfsprogs supports the ability to clear or reformat the log to an arbitrary cycle number. This functionality is invoked in mkfs, xfs_repair, etc. The code currently fills the log with unmount records sized based on the specified log stripe unit alignment. When the stripe unit is sufficiently larger, however, the resulting log records are technically invalid. For example, the log buffer size (h_size) field is always hardcoded to 32k even when the particular record length is larger. This has not traditionally been a problem because the kernel does not fully process the log record when the log is clean. Recent changes to unconditionally CRC verify the head of the log changes this behavior, however, which means the log should be valid. Technically, the records written from userspace are not written with a CRC, but this also helps support unit testing by writing a log that can be verified with logprint. Update libxfs_log_header() to write a valid log record based on the specified log stripe unit. h_size is updated to the log buffer size based on the stripe unit and the expected number of extended record headers are written out based on the log buffer size. Signed-off-by: Brian Foster --- libxfs/rdwr.c | 74 +++++++++++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 57 insertions(+), 17 deletions(-) diff --git a/libxfs/rdwr.c b/libxfs/rdwr.c index 0804285..16904d0 100644 --- a/libxfs/rdwr.c +++ b/libxfs/rdwr.c @@ -279,6 +279,7 @@ libxfs_log_header( char *p = caddr; __be32 cycle_lsn; int i, len; + int hdrs = 1; if (lsn == NULLCOMMITLSN) lsn = xlog_assign_lsn(XLOG_INIT_CYCLE, 0); @@ -291,41 +292,80 @@ libxfs_log_header( head->h_magicno = cpu_to_be32(XLOG_HEADER_MAGIC_NUM); head->h_cycle = cpu_to_be32(CYCLE_LSN(lsn)); head->h_version = cpu_to_be32(version); - if (len != 1) - head->h_len = cpu_to_be32(sunit - BBSIZE); - else - head->h_len = cpu_to_be32(20); head->h_crc = cpu_to_le32(0); head->h_prev_block = cpu_to_be32(-1); head->h_num_logops = cpu_to_be32(1); head->h_fmt = cpu_to_be32(fmt); - head->h_size = cpu_to_be32(XLOG_HEADER_CYCLE_SIZE); + head->h_size = cpu_to_be32(MAX(sunit, XLOG_BIG_RECORD_BSIZE)); head->h_lsn = cpu_to_be64(lsn); head->h_tail_lsn = cpu_to_be64(tail_lsn); memcpy(&head->h_fs_uuid, fs_uuid, sizeof(uuid_t)); - p = nextfunc(p, BBSIZE, private); - unmount_record(p); - /* - * The kernel expects to see either a log record header magic or the LSN - * cycle at the top of every log block (for example, see - * xlog_[un]pack_data() and xlog_get_cycle()). Pack the unmount record - * block appropriately here. + * The kernel expects to see either a log record header magic value or + * the LSN cycle at the top of every log block. The first word of each + * non-header block is copied to the record headers and replaced with + * the cycle value (see xlog_[un]pack_data() and xlog_get_cycle() for + * details). + * + * Even though we only ever write an unmount record (one block), we + * support writing log records up to the max log buffer size of 256k to + * improve log format performance. This means a record can require up + * to 8 headers (1 rec. header + 7 ext. headers) for the packed cycle + * data (each header supports 32k of data). */ cycle_lsn = CYCLE_LSN_DISK(head->h_lsn); + if (version == 2 && sunit > XLOG_HEADER_CYCLE_SIZE) { + hdrs = sunit / XLOG_HEADER_CYCLE_SIZE; + if (sunit % XLOG_HEADER_CYCLE_SIZE) + hdrs++; + } + + /* + * A fixed number of extended headers is expected based on h_size. If + * required, format those now so the unmount record is located + * correctly. + * + * Since we only write an unmount record, we only need one h_cycle_data + * entry for the unmount record block. The subsequent record data + * blocks are zeroed, which means we can stamp them directly with the + * cycle and zero the rest of the cycle data in the extended headers. + */ + if (hdrs > 1) { + for (i = 1; i < hdrs; i++) { + p = nextfunc(p, BBSIZE, private); + memset(p, 0, BBSIZE); + /* xlog_rec_ext_header.xh_cycle */ + *(__be32 *)p = cycle_lsn; + } + } + + /* + * The total length is the max of the stripe unit or 2 basic block + * minimum (1 hdr blk + 1 data blk). The record length is the total + * minus however many header blocks are required. + */ + head->h_len = cpu_to_be32(MAX(BBTOB(2), sunit) - hdrs * BBSIZE); + + /* + * Write out the unmount record, pack the first word into the record + * header and stamp the block with the cycle. + */ + p = nextfunc(p, BBSIZE, private); + unmount_record(p); + head->h_cycle_data[0] = *(__be32 *)p; *(__be32 *)p = cycle_lsn; /* - * Now zero any remaining blocks in the record and stamp with the cycle. - * Note that we don't need to swap into h_cycle_data because it has - * already been initialized to zero. + * Finally, zero all remaining blocks in the record and stamp each with + * the cycle. We don't need to pack any of these blocks because the + * cycle data in the headers has already been zeroed. */ - len = MAX(len, 2); - for (i = 2; i < len; i++) { + len = MAX(len, hdrs + 1); + for (i = hdrs + 1; i < len; i++) { p = nextfunc(p, BBSIZE, private); memset(p, 0, BBSIZE); *(__be32 *)p = cycle_lsn; -- 2.1.0 From bfoster@redhat.com Wed Nov 25 14:18:04 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id ACE2C7F5A for ; Wed, 25 Nov 2015 14:18:04 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3C7A7AC007 for ; Wed, 25 Nov 2015 12:18:01 -0800 (PST) X-ASG-Debug-ID: 1448482679-04cb6c0cd41f0bb0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id scUCzDY2kf9dail1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 12:17:59 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 03D1FC0D2226 for ; Wed, 25 Nov 2015 20:17:59 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAPKHwRO015469 for ; Wed, 25 Nov 2015 15:17:58 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 4CCFB122416; Wed, 25 Nov 2015 15:17:57 -0500 (EST) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 3/4] libxfs: conditionalize log format record size optimization Date: Wed, 25 Nov 2015 15:17:56 -0500 X-ASG-Orig-Subj: [PATCH 3/4] libxfs: conditionalize log format record size optimization Message-Id: <1448482677-44364-4-git-send-email-bfoster@redhat.com> In-Reply-To: <1448482677-44364-1-git-send-email-bfoster@redhat.com> References: <1448482677-44364-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448482679 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The libxfs log clear mechanism includes an optimization to use the maximum log buffer size (256k) when the log is being fully written (i.e., cycle != 1). This behavior is always enabled as no current callers are concerned with the size of the records written to format the log to a given cycle. A log format command will be added to xfs_db to facilitate testing of the userspace log format code (among other things). This command is not performance oriented and prefers the ability to format the log with varying record sizes. Update libxfs_log_clear() to use a new parameter to enable or disable the record size optimization. Note that the flag is a no-op when the cycle == XLOG_INIT_CYCLE (e.g., mkfs). Signed-off-by: Brian Foster --- copy/xfs_copy.c | 2 +- db/metadump.c | 2 +- db/sb.c | 2 +- include/libxfs.h | 2 +- libxfs/rdwr.c | 15 ++++++++++++--- mkfs/xfs_mkfs.c | 3 ++- repair/phase2.c | 2 +- repair/xfs_repair.c | 2 +- 8 files changed, 20 insertions(+), 10 deletions(-) diff --git a/copy/xfs_copy.c b/copy/xfs_copy.c index 1dc7c65..62edfc8 100644 --- a/copy/xfs_copy.c +++ b/copy/xfs_copy.c @@ -1328,7 +1328,7 @@ format_log( */ libxfs_log_clear(NULL, buf->data, logstart, length, &buf->owner->uuid, xfs_sb_version_haslogv2(&mp->m_sb) ? 2 : 1, - mp->m_sb.sb_logsunit, XLOG_FMT, cycle); + mp->m_sb.sb_logsunit, XLOG_FMT, cycle, true); if (do_write(buf->owner, buf)) target[tcarg->id].state = INACTIVE; } diff --git a/db/metadump.c b/db/metadump.c index 8cdcb92..8455fdd 100644 --- a/db/metadump.c +++ b/db/metadump.c @@ -2552,7 +2552,7 @@ copy_log(void) libxfs_log_clear(NULL, iocur_top->data, logstart, logblocks, &mp->m_sb.sb_uuid, logversion, - mp->m_sb.sb_logsunit, XLOG_FMT, cycle); + mp->m_sb.sb_logsunit, XLOG_FMT, cycle, true); break; case 1: /* keep the dirty log */ diff --git a/db/sb.c b/db/sb.c index 17d446c..ee3927d 100644 --- a/db/sb.c +++ b/db/sb.c @@ -288,7 +288,7 @@ sb_logzero(uuid_t *uuidp) (xfs_extlen_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks), uuidp, xfs_sb_version_haslogv2(&mp->m_sb) ? 2 : 1, - mp->m_sb.sb_logsunit, XLOG_FMT, cycle); + mp->m_sb.sb_logsunit, XLOG_FMT, cycle, true); if (error) { dbprintf(_("ERROR: cannot clear the log\n")); return 0; diff --git a/include/libxfs.h b/include/libxfs.h index 04c6f9c..bd51df0 100644 --- a/include/libxfs.h +++ b/include/libxfs.h @@ -154,7 +154,7 @@ typedef char *(libxfs_get_block_t)(char *, int, void *); */ #define XLOG_INIT_CYCLE 1 extern int libxfs_log_clear(struct xfs_buftarg *, char *, xfs_daddr_t, - uint, uuid_t *, int, int, int, int); + uint, uuid_t *, int, int, int, int, bool); extern int libxfs_log_header(char *, uuid_t *, int, int, int, xfs_lsn_t, xfs_lsn_t, libxfs_get_block_t *, void *); diff --git a/libxfs/rdwr.c b/libxfs/rdwr.c index 16904d0..7a04985 100644 --- a/libxfs/rdwr.c +++ b/libxfs/rdwr.c @@ -162,7 +162,8 @@ libxfs_log_clear( int version, int sunit, /* bytes */ int fmt, - int cycle) + int cycle, + bool max) { struct xfs_buf *bp = NULL; int len; @@ -218,6 +219,14 @@ libxfs_log_clear( return 0; /* + * Bump the record size for a full log format if the caller allows it. + * This is primarily for performance reasons and most callers don't care + * about record size since the log is clean after we're done. + */ + if (max) + len = BTOBB(BDSTRAT_SIZE); + + /* * Otherwise, fill everything beyond the initial record with records of * the previous cycle so the kernel head/tail detection works correctly. * @@ -233,7 +242,7 @@ libxfs_log_clear( dptr += BBTOB(len); end_blk = start + length; - len = min(end_blk - blk, BTOBB(BDSTRAT_SIZE)); + len = min(end_blk - blk, len); while (blk < end_blk) { lsn = xlog_assign_lsn(cycle, blk - start); tail_lsn = xlog_assign_lsn(cycle, blk - start - len); @@ -257,7 +266,7 @@ libxfs_log_clear( blk += len; if (dptr) dptr += BBTOB(len); - len = min(end_blk - blk, BTOBB(BDSTRAT_SIZE)); + len = min(end_blk - blk, len); } return 0; diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c index 7cba41a..546108d 100644 --- a/mkfs/xfs_mkfs.c +++ b/mkfs/xfs_mkfs.c @@ -2713,7 +2713,8 @@ _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"), libxfs_log_clear(mp->m_logdev_targp, NULL, XFS_FSB_TO_DADDR(mp, logstart), (xfs_extlen_t)XFS_FSB_TO_BB(mp, logblocks), - &sbp->sb_uuid, logversion, lsunit, XLOG_FMT, XLOG_INIT_CYCLE); + &sbp->sb_uuid, logversion, lsunit, XLOG_FMT, XLOG_INIT_CYCLE, + false); mp = libxfs_mount(mp, sbp, xi.ddev, xi.logdev, xi.rtdev, 0); if (mp == NULL) { diff --git a/repair/phase2.c b/repair/phase2.c index cb24711..e21ffa6 100644 --- a/repair/phase2.c +++ b/repair/phase2.c @@ -119,7 +119,7 @@ zero_log( (xfs_extlen_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks), &mp->m_sb.sb_uuid, xfs_sb_version_haslogv2(&mp->m_sb) ? 2 : 1, - mp->m_sb.sb_logsunit, XLOG_FMT, XLOG_INIT_CYCLE); + mp->m_sb.sb_logsunit, XLOG_FMT, XLOG_INIT_CYCLE, true); /* update the log data structure with new state */ error = xlog_find_tail(log, &head_blk, &tail_blk); diff --git a/repair/xfs_repair.c b/repair/xfs_repair.c index 1aeac5b..3eaced4 100644 --- a/repair/xfs_repair.c +++ b/repair/xfs_repair.c @@ -586,7 +586,7 @@ format_log_max_lsn( do_warn(_("Format log to cycle %d.\n"), new_cycle); libxfs_log_clear(log->l_dev, NULL, logstart, logblocks, &mp->m_sb.sb_uuid, logversion, mp->m_sb.sb_logsunit, - XLOG_FMT, new_cycle); + XLOG_FMT, new_cycle, true); } int -- 2.1.0 From bfoster@redhat.com Wed Nov 25 14:19:54 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 80A0B7F37 for ; Wed, 25 Nov 2015 14:19:54 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1F194AC003 for ; Wed, 25 Nov 2015 12:19:54 -0800 (PST) X-ASG-Debug-ID: 1448482792-04cbb0605e227280001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id vQF9GocT4ugxCiA4 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 12:19:53 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 7EB8E68E09; Wed, 25 Nov 2015 20:19:52 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAPKJqAj016143; Wed, 25 Nov 2015 15:19:52 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id D0DE7122406; Wed, 25 Nov 2015 15:19:50 -0500 (EST) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [PATCH 0/2] xfstests: xfsprogs logformat tests Date: Wed, 25 Nov 2015 15:19:48 -0500 X-ASG-Orig-Subj: [PATCH 0/2] xfstests: xfsprogs logformat tests Message-Id: <1448482790-44469-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448482792 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi all, Here are a couple prospective tests that use the recently posted xfs_db logformat command: http://oss.sgi.com/pipermail/xfs/2015-November/045139.html Note that these should not be merged until xfs_db logformat support is fully reviewed and merged into xfsprogs. Also note that the test numbers are arbitrarily high and should be renumbered. Patch 1 adds a test that uses xfs_logprint to verify that logformat formats the log correctly with various stripe unit alignments. Patch 2 uses the logformat command to test invalid metadata LSN detection and recovery. Thoughts, reviews, flames appreciated. Brian Brian Foster (2): tests/xfs: test xfsprogs log formatting infrastructure tests/xfs: verify invalid metadata LSN detection common/rc | 14 +++++++++ tests/xfs/376 | 71 +++++++++++++++++++++++++++++++++++++++++++ tests/xfs/376.out | 6 ++++ tests/xfs/377 | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/377.out | 3 ++ tests/xfs/group | 2 ++ 6 files changed, 186 insertions(+) create mode 100755 tests/xfs/376 create mode 100644 tests/xfs/376.out create mode 100755 tests/xfs/377 create mode 100644 tests/xfs/377.out -- 2.1.0 From bfoster@redhat.com Wed Nov 25 14:19:57 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 777FB7F52 for ; Wed, 25 Nov 2015 14:19:57 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 663F4304059 for ; Wed, 25 Nov 2015 12:19:54 -0800 (PST) X-ASG-Debug-ID: 1448482792-04cb6c0cd31f0c40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id wB7CrzuzvdlMGeLz (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 12:19:53 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id A429A3B70F; Wed, 25 Nov 2015 20:19:52 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAPKJqSL016145; Wed, 25 Nov 2015 15:19:52 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id EE284122420; Wed, 25 Nov 2015 15:19:50 -0500 (EST) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [PATCH 1/2] tests/xfs: test xfsprogs log formatting infrastructure Date: Wed, 25 Nov 2015 15:19:49 -0500 X-ASG-Orig-Subj: [PATCH 1/2] tests/xfs: test xfsprogs log formatting infrastructure Message-Id: <1448482790-44469-2-git-send-email-bfoster@redhat.com> In-Reply-To: <1448482790-44469-1-git-send-email-bfoster@redhat.com> References: <1448482790-44469-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448482793 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The xfsprogs libxfs layer implements its own log formatting code to support utilities that might need to format the log, such as mkfs, repair, metadump, etc. This code is fairly independent from kernel log writing code. Therefore, add a test that reformats the log from userspace with various supported log stripe unit alignments and verifies that the end result is a correctly formatted log. Signed-off-by: Brian Foster --- common/rc | 14 +++++++++++ tests/xfs/376 | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/376.out | 6 +++++ tests/xfs/group | 1 + 4 files changed, 92 insertions(+) create mode 100755 tests/xfs/376 create mode 100644 tests/xfs/376.out diff --git a/common/rc b/common/rc index 4c2f42c..a2628d7 100644 --- a/common/rc +++ b/common/rc @@ -1654,6 +1654,20 @@ _require_xfs_io_command() _notrun "xfs_io $command failed (old kernel/wrong fs?)" } +# check that xfs_db supports a specific command +_require_xfs_db_command() +{ + if [ $# -ne 1 ] + then + echo "Usage: _require_xfs_db_command command" 1>&2 + exit 1 + fi + command=$1 + + $XFS_DB_PROG -x -c "help" $SCRATCH_DEV | grep $command > /dev/null || \ + _notrun "xfs_db $command support is missing" +} + # check that kernel and filesystem support direct I/O _require_odirect() { diff --git a/tests/xfs/376 b/tests/xfs/376 new file mode 100755 index 0000000..e8cc15d --- /dev/null +++ b/tests/xfs/376 @@ -0,0 +1,71 @@ +#! /bin/bash +# FS QA Test No. 376 +# +# This test verifies that the xfsprogs log formatting infrastructure works +# correctly for various log stripe unit values. The log is formatted with xfs_db +# and verified with xfs_logprint. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Red Hat, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +rm -f $seqres.full + +# get standard environment, filters and checks +. ./common/rc +. ./common/log + +# real QA test starts here + +# Modify as appropriate. +_supported_fs xfs +_supported_os Linux +_require_scratch +_require_v2log +_require_xfs_db_command "logformat" + +_scratch_mkfs >> $seqres.full 2>&1 || _fail "mkfs failed" + +# Reformat the log with various log stripe unit sizes and see if logprint dumps +# any errors. Use a cycle value larger than 1 so the log is actually written +# (the log is zeroed when cycle == 1). +for i in 16 32 64 128 256; do + lsunit=$((i * 1024)) + $XFS_DB_PROG -x -c "logformat -c 3 -s $lsunit" $SCRATCH_DEV | \ + tee -a $seqres.full + # don't redirect error output so it causes test failure + $XFS_LOGPRINT_PROG $SCRATCH_DEV >> $seqres.full +done + +# success, all done +status=0 +exit diff --git a/tests/xfs/376.out b/tests/xfs/376.out new file mode 100644 index 0000000..b13a150 --- /dev/null +++ b/tests/xfs/376.out @@ -0,0 +1,6 @@ +QA output created by 376 +Formatting the log to cycle 3, stripe unit 16384 bytes. +Formatting the log to cycle 3, stripe unit 32768 bytes. +Formatting the log to cycle 3, stripe unit 65536 bytes. +Formatting the log to cycle 3, stripe unit 131072 bytes. +Formatting the log to cycle 3, stripe unit 262144 bytes. diff --git a/tests/xfs/group b/tests/xfs/group index 9884329..77b9994 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -226,3 +226,4 @@ 303 auto quick quota 304 auto quick quota 305 auto quota +376 auto logprint quick v2log -- 2.1.0 From bfoster@redhat.com Wed Nov 25 14:19:57 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 72DCC7F51 for ; Wed, 25 Nov 2015 14:19:57 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 62D51304048 for ; Wed, 25 Nov 2015 12:19:54 -0800 (PST) X-ASG-Debug-ID: 1448482792-04cb6c0cd41f0c40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id aSm0Le92wzluBlZ8 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 12:19:53 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id A3818C0B7AD2; Wed, 25 Nov 2015 20:19:52 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAPKJqXt000607; Wed, 25 Nov 2015 15:19:52 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id E1C5D1223E9; Wed, 25 Nov 2015 15:19:50 -0500 (EST) From: Brian Foster To: fstests@vger.kernel.org Cc: xfs@oss.sgi.com Subject: [PATCH 2/2] tests/xfs: verify invalid metadata LSN detection Date: Wed, 25 Nov 2015 15:19:50 -0500 X-ASG-Orig-Subj: [PATCH 2/2] tests/xfs: verify invalid metadata LSN detection Message-Id: <1448482790-44469-3-git-send-email-bfoster@redhat.com> In-Reply-To: <1448482790-44469-1-git-send-email-bfoster@redhat.com> References: <1448482790-44469-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448482793 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS v5 superblock fs' use metadata LSN tracking to determine when an on-disk structure was last written to disk. This is used to ensure log recovery operates correctly after an unclean shutdown. To work correctly, the on-disk metadata LSNs must always remain behind the current LSN with respect to the log. Historically, xfs_repair had a problem where it incorrectly formats the log to an LSN that is potentially behind existing metadata LSNs. As such, xfs_repair and the kernel have been updated to prevent, detect and recover from the problem. Add a test that intentionally formats the log incorrectly and verifies that the fs fails to mount and that xfs_repair detects the invalid metadata LSNs. Signed-off-by: Brian Foster --- tests/xfs/377 | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/377.out | 3 ++ tests/xfs/group | 1 + 3 files changed, 94 insertions(+) create mode 100755 tests/xfs/377 create mode 100644 tests/xfs/377.out diff --git a/tests/xfs/377 b/tests/xfs/377 new file mode 100755 index 0000000..c8211b8 --- /dev/null +++ b/tests/xfs/377 @@ -0,0 +1,90 @@ +#! /bin/bash +# FS QA Test No. 377 +# +# XFS v5 supers carry an LSN in various on-disk structures to track when +# associated metadata was last written to disk. These metadata LSNs must always +# be behind the current LSN as dictated by the log to ensure log recovery +# correctness after a potential crash. This test uses xfs_db to intentionally +# put the current LSN behind metadata LSNs and verifies that the kernel and +# xfs_repair detect the problem. +# +#----------------------------------------------------------------------- +# Copyright (c) 2015 Red Hat, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +rm -f $seqres.full + +# get standard environment, filters and checks +. ./common/rc + +# real QA test starts here + +# Modify as appropriate. +_supported_fs xfs +_supported_os Linux +_require_scratch +_require_xfs_crc +_require_xfs_db_command "logformat" + +_scratch_mkfs >> $seqres.full 2>&1 || _fail "mkfs failed" + +# push the log cycle ahead so we have room to move it backwards later +$XFS_DB_PROG -x -c "logformat -c 3" $SCRATCH_DEV >> $seqres.full 2>&1 + +# do some work on the fs to update metadata LSNs +_scratch_mount +$FSSTRESS_PROG -d $SCRATCH_MNT -n 999 -p 4 -w >> $seqres.full 2>&1 +_scratch_unmount + +# Reformat to the current cycle and try to mount. This fails in most cases +# because the sb LSN is ahead of the current LSN. If it doesn't fail, push the +# cycle back further and try again. +$XFS_DB_PROG -x -c "logformat" $SCRATCH_DEV >> $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 +if [ $? != 0 ]; then + echo mount failure detected +else + _scratch_unmount + $XFS_DB_PROG -x -c "logformat -c 2" $SCRATCH_DEV >> $seqres.full 2>&1 + _scratch_mount >> $seqres.full 2>&1 || echo mount failure detected +fi + +# verify that repair detects invalid LSNs as well +$XFS_REPAIR_PROG -n $SCRATCH_DEV >> $seqres.full 2>&1 || \ + echo repair failure detected + +# repair for real so the post-test check can verify repair fixed things up +$XFS_REPAIR_PROG $SCRATCH_DEV >> $seqres.full 2>&1 + +# success, all done +status=0 +exit diff --git a/tests/xfs/377.out b/tests/xfs/377.out new file mode 100644 index 0000000..d49b5f2 --- /dev/null +++ b/tests/xfs/377.out @@ -0,0 +1,3 @@ +QA output created by 377 +mount failure detected +repair failure detected diff --git a/tests/xfs/group b/tests/xfs/group index 77b9994..d8c32c7 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -227,3 +227,4 @@ 304 auto quick quota 305 auto quota 376 auto logprint quick v2log +377 auto metadata v2log -- 2.1.0 From david@fromorbit.com Wed Nov 25 15:35:25 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 795087F37 for ; Wed, 25 Nov 2015 15:35:25 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 668708F8033 for ; Wed, 25 Nov 2015 13:35:22 -0800 (PST) X-ASG-Debug-ID: 1448487314-04cbb0605d228b80001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id wxugJnnlEpkQ5zdj for ; Wed, 25 Nov 2015 13:35:14 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2AHCQA9KFZW/1bELHlUCoM7U2+rHg8BAQEGi0GJPxcKhWgEAgKBRU0BAQEBAQGBC4Q0AQEBAwEBAjccIwULCAMOCgklDwUUEQMhE4gmBw6+UAEsGYV0hUWEMAQBhQQFh0eHDogCikqCYoFlh2eTG2OEGCo0AYNhAR+BKgEBAQ Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 26 Nov 2015 08:05:13 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a1hiO-0004Jn-N9; Thu, 26 Nov 2015 08:35:00 +1100 Date: Thu, 26 Nov 2015 08:35:00 +1100 From: Dave Chinner To: Lutz Vieweg Cc: xfs@oss.sgi.com Subject: Re: Does XFS support cgroup writeback limiting? Message-ID: <20151125213500.GK26718@dastard> X-ASG-Orig-Subj: Re: Does XFS support cgroup writeback limiting? References: <5652F311.7000406@5t9.de> <20151123202619.GE26718@dastard> <56538E6A.6030203@5t9.de> <20151123232052.GI26718@dastard> <5655FDDA.9050502@5t9.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5655FDDA.9050502@5t9.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448487314 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24727 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Nov 25, 2015 at 07:28:42PM +0100, Lutz Vieweg wrote: > On 11/24/2015 12:20 AM, Dave Chinner wrote: > >Just make the same mods to XFS as the ext4 patch here: > > > >http://www.spinics.net/lists/kernel/msg2014816.html > > I read at http://www.spinics.net/lists/kernel/msg2014819.html > about this patch: > > >Journal data which is written by jbd2 worker is left alone by > >this patch and will always be written out from the root cgroup. > > If the same was done for XFS, wouldn't this mean a malicious > process could still stall other processes' attempts to write > to the filesystem by performing arbitrary amounts of meta-data > modifications in a tight loop? XFS doesn't have journal driver writeback, so no. > >>After all, this functionality is the last piece of the > >>"isolation"-puzzle that is missing from Linux to actually > >>allow fencing off virtual machines or containers from DOSing > >>each other by using up all I/O bandwidth... > > > >Yes, I know, but no-one seems to care enough about it to provide > >regression tests for it. > > Well, I could give it a try, if a shell script tinkering with > control groups parameters (which requires root privileges and > could easily stall the machine) would be considered adequate for > the purpose. xfstests is where such tests need to live. It would need infrastructure to set up control groups and bandwidth limits... > I would propose a test to be performed like this: > > 0) Identify a block device to test on. I guess some artificially > speed-limited DM device would be best? > Set the speed limit to X/100 MB per second, with X configurable. xfstests provides a scratch device that can be used for this. > > 1) Start 4 "good" plus 4 "evil" subprocesses competing for > write-bandwidth on the block device. > Assign the 4 "good" processes to two different control groups ("g1", "g2"), > assign the 4 "evil" processes to further two different control > groups ("e1", "e2"), so 4 control groups in total, with 2 tasks each. > > 2) Create 3 different XFS filesystem instances on the block > device, one for access by only the "good" processes, > on for access by only the "evil" processes, one for > shared access by at least two "good" and two "evil" > processes. Why do you need multiple filesystems? The writeback throttling is designed to work within a single filesystem... I was thinking of something similar, but quite simple, using "bound" and "unbound" (i.e. limited and unlimited) processes. e.g: process 1 is unbound, does large sequential IO process 2-N are bound to 1MB/s, do large sequential IO Run for several minutes to reach a stable steady state behaviour. if process 2-N do not receive 1MB/s throughput each, then throttling of the unbound writeback processes is not working. Combinations of this test using different read/write streams on each process gives multiple tests, verifies that block IO control works for both read and write IO, not just writeback throttling. And then other combinations of this sort of test, such as also binding process 1 is bound to, say, 20MB/s. Repeating the tests can then tell us if fast and slow bindings are working correctly. i.e. checking to ensure that process 1 doesn't exceed it's limits and all the other streams stay within bounds, too. > 3) Behaviour of the processes: > > "Good" processes will attempt to write a configured amount > of data (X MB) at 20% of the speed limit of the block device, modifying > meta-data at a moderate rate (like creating/renaming/deleting files > every few megabytes written). > Half of the "good" processes write to their "good-only" filesystem, > the other half writes to the "shared access" filesystem. > > Half of the "evil" processes will attempt to write as much data > as possible into open files in a tight endless loop. > The other half of the "evil" processes will permanently > modify meta-data as quickly as possible, creating/renaming/deleting > lots of files, also in a tight endless loop. > Half of the "evil" processes writes to the "evil-only" filesystem, > the other half writes to the "shared access" filesystem. Metadata IO not throttled - it is owned by the filesystem and hence root cgroup. There is no point in running tests that do large amounts of journal/metadata IO as it is this will result in uncontrollable and unpredictabe IO patterns and hence will give unreliable test results. We want to test the data bandwidth control algorithms work appropriately in a controlled, repeatable environment. Throwing all sorts of uncontrollable IO at the device is a good /stress/ test, but it is not going to tell us anything useful in terms of correctness or reliably detect functional regressions. > 4) Test 1: Configure all 4 control groups to allow for the same > buffered write rate percentage. > > The test is successful if all "good processes" terminate successfully > after a time not longer than it would take to write 10 times X MB to the > rate-limited block device. if we are rate limiting to 1MB/s, then a 10s test is not long enough to reach steady state. Indeed, it's going to take at least 30s worth of IO to guarantee that we getting writeback occurring for low bandwidth streams.... i.e. the test needs to run for a period of time and then measure the throughput of each stream, comparing it against the expected throughput for the stream, rather than trying to write a fixed bandwidth.... > 5) Test 2: Configure "e1" and "e2" to allow for "zero" buffered write rate. > > The test is successful if the "good processes" terminate successfully > after a time not longer than it would take to write 5 times X MB to the > rate-limited block device. > > All processes to be killed after termination of all good processes or > some timeout. If the timeout is reached, the test is failed. > > 6) Cleanup: unmount test filesystems, remove rate-limited DM device, remove > control groups. control group cleanup will need to be added to the xfstests infrastructure, but it handles everything else... > What do you think, could this be a reasonable plan? Yes, I think we can pull a reasonable set of baseline tests from an approach like this. Cheers, Dave. -- Dave Chinner david@fromorbit.com From yamato@redhat.com Wed Nov 25 20:22:58 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8B2C97F37 for ; Wed, 25 Nov 2015 20:22:58 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5EE5E30405F for ; Wed, 25 Nov 2015 18:22:55 -0800 (PST) X-ASG-Debug-ID: 1448504569-04bdf07f082502f0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id gxtc4lAxwzHytJ5W (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 18:22:50 -0800 (PST) X-Barracuda-Envelope-From: yamato@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 93C5ED69CB; Thu, 26 Nov 2015 02:22:49 +0000 (UTC) Received: from x201.localdomain.com (dhcp-193-150.nrt.redhat.com [10.64.193.150]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAQ2MmXW017502; Wed, 25 Nov 2015 21:22:48 -0500 From: Masatake YAMATO To: xfs@oss.sgi.com Cc: yamato@redhat.com Subject: [PATCH v2] xfs: send warning of project quota to userspace via netlink Date: Thu, 26 Nov 2015 11:22:39 +0900 X-ASG-Orig-Subj: [PATCH v2] xfs: send warning of project quota to userspace via netlink Message-Id: <1448504560-25151-1-git-send-email-yamato@redhat.com> In-Reply-To: <20151125185419.GA18719@bfoster.bfoster> References: <20151125185419.GA18719@bfoster.bfoster> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448504570 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Linux's quota subsystem has an ability to handle project quota. This commit just utilizes the ability from xfs side. dbus-monitor and quota_nld shipped as part of quota-tools can be used for testing. The testing environment and condition: # cat /etc/projects 10:/root/Q/a # grep Q /proc/mounts /dev/loop0 /root/Q xfs rw,relatime,attr2,inode64,prjquota 0 0 # ls -l /dev/loop0 brw-rw---- 1 root disk 7, 0 Nov 26 10:46 /dev/loop0 3 terminals are used for each commands: dd, quota_nld, and dbus-monitor. Start quota_nld with terminal 1: [1]# quota_nld -F Start dbus-monitor with terminal 2: [2]# dbus-monitor --system Start dd to generate a large file for hitting the quota limit: [3]# dd if=/dev/sda of=/root/Q/a/X At the terminal 1, you will see warning messages like: quota_nld: Failed to open tty /dev/tty1 of user 0 to report warning. Let's ignore them. These meaningless messages are suppressed by a patch available at https://sourceforge.net/p/linuxquota/patches/43/. At the terminal 2, you will see following traffic about disk quota (newlines are inserted): signal time=1448502680.741715 sender=:1.35 -> \ destination=(null destination) serial=4 path=/; \ interface=com.system.quota.warning; member=warning uint32 2 uint64 10 uint32 6 uint32 7 uint32 0 uint64 0 signal time=1448502680.742518 sender=:1.35 -> \ destination=(null destination) serial=5 path=/; \ interface=com.system.quota.warning; member=warning uint32 2 uint64 10 uint32 4 uint32 7 uint32 0 uint64 0 The 1st "2" means the type of quota: project quota. The 2nd "10" means the project id. The 3rd "4" and "6" mean "Block hardlimit reached" and "Block softlimit reached". The 4th "7" means the major number of loop0. The 5th "0" means the minor number of loop0. Changes in v2: a couple aesthetic things suggested by Brian Foster . * rename local vairable for aligning the parameter names, * move a short line to the end of its previous line. Signed-off-by: Masatake YAMATO --- fs/xfs/xfs_trans_dquot.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c index ce78534..9951701 100644 --- a/fs/xfs/xfs_trans_dquot.c +++ b/fs/xfs/xfs_trans_dquot.c @@ -572,12 +572,16 @@ xfs_quota_warn( struct xfs_dquot *dqp, int type) { - /* no warnings for project quotas - we just return ENOSPC later */ + enum quota_type qtype; + if (dqp->dq_flags & XFS_DQ_PROJ) - return; - quota_send_warning(make_kqid(&init_user_ns, - (dqp->dq_flags & XFS_DQ_USER) ? - USRQUOTA : GRPQUOTA, + qtype = PRJQUOTA; + else if (dqp->dq_flags & XFS_DQ_USER) + qtype = USRQUOTA; + else + qtype = GRPQUOTA; + + quota_send_warning(make_kqid(&init_user_ns, qtype, be32_to_cpu(dqp->q_core.d_id)), mp->m_super->s_dev, type); } -- 2.5.0 From yamato@redhat.com Wed Nov 25 20:34:14 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A1F4C7F37 for ; Wed, 25 Nov 2015 20:34:14 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7E2218F8050 for ; Wed, 25 Nov 2015 18:34:14 -0800 (PST) X-ASG-Debug-ID: 1448505252-04cbb0605b2330e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id QAebinnh7GNhY8sV (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 18:34:13 -0800 (PST) X-Barracuda-Envelope-From: yamato@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 92CD568E01; Thu, 26 Nov 2015 02:34:12 +0000 (UTC) Received: from x201.localdomain.com (dhcp-193-150.nrt.redhat.com [10.64.193.150]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAQ2YBuJ022293; Wed, 25 Nov 2015 21:34:11 -0500 From: Masatake YAMATO To: xfs@oss.sgi.com Cc: yamato@redhat.com Subject: [PATCH v2] xfs: send warning of project quota to userspace via netlink Date: Thu, 26 Nov 2015 11:34:07 +0900 X-ASG-Orig-Subj: [PATCH v2] xfs: send warning of project quota to userspace via netlink Message-Id: <1448505248-25481-1-git-send-email-yamato@redhat.com> In-Reply-To: <20151125185419.GA18719@bfoster.bfoster> References: <20151125185419.GA18719@bfoster.bfoster> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448505253 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Linux's quota subsystem has an ability to handle project quota. This commit just utilizes the ability from xfs side. dbus-monitor and quota_nld shipped as part of quota-tools can be used for testing. The testing environment and condition: # cat /etc/projects 10:/root/Q/a # grep Q /proc/mounts /dev/loop0 /root/Q xfs rw,relatime,attr2,inode64,prjquota 0 0 # ls -l /dev/loop0 brw-rw---- 1 root disk 7, 0 Nov 26 10:46 /dev/loop0 3 terminals are used for each commands: dd, quota_nld, and dbus-monitor. Start quota_nld with terminal 1: [1]# quota_nld -F Start dbus-monitor with terminal 2: [2]# dbus-monitor --system Start dd to generate a large file for hitting the quota limit: [3]# dd if=/dev/sda of=/root/Q/a/X At the terminal 1, you will see warning messages like: quota_nld: Failed to open tty /dev/tty1 of user 0 to report warning. Let's ignore them. These meaningless messages are suppressed by a patch available at https://sourceforge.net/p/linuxquota/patches/43/. At the terminal 2, you will see following traffic about disk quota (newlines are inserted): signal time=1448502680.741715 sender=:1.35 -> \ destination=(null destination) serial=4 path=/; \ interface=com.system.quota.warning; member=warning uint32 2 uint64 10 uint32 6 uint32 7 uint32 0 uint64 0 signal time=1448502680.742518 sender=:1.35 -> \ destination=(null destination) serial=5 path=/; \ interface=com.system.quota.warning; member=warning uint32 2 uint64 10 uint32 4 uint32 7 uint32 0 uint64 0 The 1st "2" means the type of quota: project quota. The 2nd "10" means the project id. The 3rd "4" and "6" mean "Block hardlimit reached" and "Block softlimit reached". The 4th "7" means the major number of loop0. The 5th "0" means the minor number of loop0. Changes in v2: a couple aesthetic things suggested by Brian Foster . * rename local vairable for aligning the parameter names, * move a short line to the end of its previous line. Signed-off-by: Masatake YAMATO --- fs/xfs/xfs_trans_dquot.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c index ce78534..9951701 100644 --- a/fs/xfs/xfs_trans_dquot.c +++ b/fs/xfs/xfs_trans_dquot.c @@ -572,12 +572,16 @@ xfs_quota_warn( struct xfs_dquot *dqp, int type) { - /* no warnings for project quotas - we just return ENOSPC later */ + enum quota_type qtype; + if (dqp->dq_flags & XFS_DQ_PROJ) - return; - quota_send_warning(make_kqid(&init_user_ns, - (dqp->dq_flags & XFS_DQ_USER) ? - USRQUOTA : GRPQUOTA, + qtype = PRJQUOTA; + else if (dqp->dq_flags & XFS_DQ_USER) + qtype = USRQUOTA; + else + qtype = GRPQUOTA; + + quota_send_warning(make_kqid(&init_user_ns, qtype, be32_to_cpu(dqp->q_core.d_id)), mp->m_super->s_dev, type); } -- 2.5.0 From yamato@redhat.com Wed Nov 25 20:34:16 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 996947F51 for ; Wed, 25 Nov 2015 20:34:16 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6AAB68F8064 for ; Wed, 25 Nov 2015 18:34:16 -0800 (PST) X-ASG-Debug-ID: 1448505254-04bdf07f07250620001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id D2QE3cNpC51qBfOq (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 18:34:14 -0800 (PST) X-Barracuda-Envelope-From: yamato@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 977CFC0B7AA9; Thu, 26 Nov 2015 02:34:14 +0000 (UTC) Received: from x201.localdomain.com (dhcp-193-150.nrt.redhat.com [10.64.193.150]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAQ2YBuK022293; Wed, 25 Nov 2015 21:34:13 -0500 From: Masatake YAMATO To: xfs@oss.sgi.com Cc: yamato@redhat.com Subject: [PATCH v2] xfs: send warning of project quota to userspace via netlink Date: Thu, 26 Nov 2015 11:34:08 +0900 X-ASG-Orig-Subj: [PATCH v2] xfs: send warning of project quota to userspace via netlink Message-Id: <1448505248-25481-2-git-send-email-yamato@redhat.com> In-Reply-To: <1448505248-25481-1-git-send-email-yamato@redhat.com> References: <20151125185419.GA18719@bfoster.bfoster> <1448505248-25481-1-git-send-email-yamato@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448505254 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Linux's quota subsystem has an ability to handle project quota. This commit just utilizes the ability from xfs side. dbus-monitor and quota_nld shipped as part of quota-tools can be used for testing. The testing environment and condition: # cat /etc/projects 10:/root/Q/a # grep Q /proc/mounts /dev/loop0 /root/Q xfs rw,relatime,attr2,inode64,prjquota 0 0 # ls -l /dev/loop0 brw-rw---- 1 root disk 7, 0 Nov 26 10:46 /dev/loop0 3 terminals are used for each commands: dd, quota_nld, and dbus-monitor. Start quota_nld with terminal 1: [1]# quota_nld -F Start dbus-monitor with terminal 2: [2]# dbus-monitor --system Start dd to generate a large file for hitting the quota limit: [3]# dd if=/dev/sda of=/root/Q/a/X At the terminal 1, you will see warning messages like: quota_nld: Failed to open tty /dev/tty1 of user 0 to report warning. Let's ignore them. These meaningless messages are suppressed by a patch available at https://sourceforge.net/p/linuxquota/patches/43/. At the terminal 2, you will see following traffic about disk quota (newlines are inserted): signal time=1448502680.741715 sender=:1.35 -> \ destination=(null destination) serial=4 path=/; \ interface=com.system.quota.warning; member=warning uint32 2 uint64 10 uint32 6 uint32 7 uint32 0 uint64 0 signal time=1448502680.742518 sender=:1.35 -> \ destination=(null destination) serial=5 path=/; \ interface=com.system.quota.warning; member=warning uint32 2 uint64 10 uint32 4 uint32 7 uint32 0 uint64 0 The 1st "2" means the type of quota: project quota. The 2nd "10" means the project id. The 3rd "4" and "6" mean "Block hardlimit reached" and "Block softlimit reached". The 4th "7" means the major number of loop0. The 5th "0" means the minor number of loop0. Changes in v2: a couple aesthetic things suggested by Brian Foster . * rename local vairable for aligning the parameter names, * move a short line to the end of its previous line. Signed-off-by: Masatake YAMATO --- fs/xfs/xfs_trans_dquot.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c index ce78534..9951701 100644 --- a/fs/xfs/xfs_trans_dquot.c +++ b/fs/xfs/xfs_trans_dquot.c @@ -572,12 +572,16 @@ xfs_quota_warn( struct xfs_dquot *dqp, int type) { - /* no warnings for project quotas - we just return ENOSPC later */ + enum quota_type qtype; + if (dqp->dq_flags & XFS_DQ_PROJ) - return; - quota_send_warning(make_kqid(&init_user_ns, - (dqp->dq_flags & XFS_DQ_USER) ? - USRQUOTA : GRPQUOTA, + qtype = PRJQUOTA; + else if (dqp->dq_flags & XFS_DQ_USER) + qtype = USRQUOTA; + else + qtype = GRPQUOTA; + + quota_send_warning(make_kqid(&init_user_ns, qtype, be32_to_cpu(dqp->q_core.d_id)), mp->m_super->s_dev, type); } -- 2.5.0 From yamato@redhat.com Wed Nov 25 20:40:32 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 76BB97F37 for ; Wed, 25 Nov 2015 20:40:32 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6218E30405F for ; Wed, 25 Nov 2015 18:40:32 -0800 (PST) X-ASG-Debug-ID: 1448505630-04cbb0605e233290001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id SvswkdddzgeJDKOZ (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 25 Nov 2015 18:40:31 -0800 (PST) X-Barracuda-Envelope-From: yamato@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id C8164120483 for ; Thu, 26 Nov 2015 02:40:30 +0000 (UTC) Received: from localhost (dhcp-193-150.nrt.redhat.com [10.64.193.150]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAQ2eSNw012523; Wed, 25 Nov 2015 21:40:29 -0500 Date: Thu, 26 Nov 2015 11:40:28 +0900 (JST) Message-Id: <20151126.114028.748904313790123119.yamato@redhat.com> To: xfs@oss.sgi.com Cc: yamato@redhat.com Subject: Re: [PATCH v2] xfs: send warning of project quota to userspace via netlink From: Masatake YAMATO X-ASG-Orig-Subj: Re: [PATCH v2] xfs: send warning of project quota to userspace via netlink In-Reply-To: <1448505248-25481-2-git-send-email-yamato@redhat.com> References: <20151125185419.GA18719@bfoster.bfoster> <1448505248-25481-1-git-send-email-yamato@redhat.com> <1448505248-25481-2-git-send-email-yamato@redhat.com> Organization: Red Hat Japan, Inc. Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448505631 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 I'm sorry, mistakenly I sent the same message multiple times. All the same. so please, review the any one of them. Masatake YAMATO > Linux's quota subsystem has an ability to handle > project quota. This commit just utilizes the ability > from xfs side. > > dbus-monitor and quota_nld shipped as part of quota-tools can > be used for testing. > > The testing environment and condition: > > # cat /etc/projects > 10:/root/Q/a > # grep Q /proc/mounts > /dev/loop0 /root/Q xfs rw,relatime,attr2,inode64,prjquota 0 0 > # ls -l /dev/loop0 > brw-rw---- 1 root disk 7, 0 Nov 26 10:46 /dev/loop0 > > 3 terminals are used for each commands: dd, quota_nld, and dbus-monitor. > > Start quota_nld with terminal 1: > > [1]# quota_nld -F > > Start dbus-monitor with terminal 2: > > [2]# dbus-monitor --system > > Start dd to generate a large file for hitting the quota limit: > > [3]# dd if=/dev/sda of=/root/Q/a/X > > At the terminal 1, you will see warning messages like: > > quota_nld: Failed to open tty /dev/tty1 of user 0 to report warning. > > Let's ignore them. These meaningless messages > are suppressed by a patch available at > https://sourceforge.net/p/linuxquota/patches/43/. > > At the terminal 2, you will see following traffic about disk quota > (newlines are inserted): > > signal time=1448502680.741715 sender=:1.35 -> \ > destination=(null destination) serial=4 path=/; \ > interface=com.system.quota.warning; member=warning > uint32 2 > uint64 10 > uint32 6 > uint32 7 > uint32 0 > uint64 0 > signal time=1448502680.742518 sender=:1.35 -> \ > destination=(null destination) serial=5 path=/; \ > interface=com.system.quota.warning; member=warning > uint32 2 > uint64 10 > uint32 4 > uint32 7 > uint32 0 > uint64 0 > > The 1st "2" means the type of quota: project quota. > The 2nd "10" means the project id. > The 3rd "4" and "6" mean "Block hardlimit reached" and > "Block softlimit reached". > The 4th "7" means the major number of loop0. > The 5th "0" means the minor number of loop0. > > Changes in v2: > > a couple aesthetic things suggested by Brian Foster . > * rename local vairable for aligning the parameter names, > * move a short line to the end of its previous line. > > Signed-off-by: Masatake YAMATO > --- > fs/xfs/xfs_trans_dquot.c | 14 +++++++++----- > 1 file changed, 9 insertions(+), 5 deletions(-) > > diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c > index ce78534..9951701 100644 > --- a/fs/xfs/xfs_trans_dquot.c > +++ b/fs/xfs/xfs_trans_dquot.c > @@ -572,12 +572,16 @@ xfs_quota_warn( > struct xfs_dquot *dqp, > int type) > { > - /* no warnings for project quotas - we just return ENOSPC later */ > + enum quota_type qtype; > + > if (dqp->dq_flags & XFS_DQ_PROJ) > - return; > - quota_send_warning(make_kqid(&init_user_ns, > - (dqp->dq_flags & XFS_DQ_USER) ? > - USRQUOTA : GRPQUOTA, > + qtype = PRJQUOTA; > + else if (dqp->dq_flags & XFS_DQ_USER) > + qtype = USRQUOTA; > + else > + qtype = GRPQUOTA; > + > + quota_send_warning(make_kqid(&init_user_ns, qtype, > be32_to_cpu(dqp->q_core.d_id)), > mp->m_super->s_dev, type); > } > -- > 2.5.0 > From zxvbmseki@korea.com Thu Nov 26 02:11:56 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: *** X-Spam-Status: No, score=3.6 required=5.0 tests=HK_RANDOM_ENVFROM, HK_RANDOM_FROM,HTML_MESSAGE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B0E787F37 for ; Thu, 26 Nov 2015 02:11:56 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9DA5A304048 for ; Thu, 26 Nov 2015 00:11:53 -0800 (PST) X-ASG-Debug-ID: 1448525505-04cb6c0cd41ffce0001-NocioJ Received: from r-smtp6.korea.com (powered-by.xenosite.net [5.178.34.195]) by cuda.sgi.com with ESMTP id flkk8OMlHhALBW97 for ; Thu, 26 Nov 2015 00:11:46 -0800 (PST) X-Barracuda-Envelope-From: zxvbmseki@korea.com 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0L7QvNC+0LPQsNC10Lwg0LIg0LHRgNC+0L3QuNGA0L7QstCw0L3QuNC4INCz0L7RgdGC0LjQvdC4 0YbRiy48L3A+PC90ZD48dGQgYmdjb2xvcj0iI2Q4YzljOSI+wqA8L3RkPjx0ZCBiZ2NvbG9yPSIj YzJhYmFiIj7CoDwvdGQ+PHRkIGJnY29sb3I9IiNhNDgyODIiPsKgPC90ZD48dGQgYmdjb2xvcj0i Izg2NjI2MiI+wqA8L3RkPjwvdHI+PHRyPjx0ZCB3aWR0aD0iNCIgYmdjb2xvcj0iIzg2NjI2MiI+ wqA8L3RkPjx0ZCBiZ2NvbG9yPSIjYTQ4MjgyIj7CoDwvdGQ+PHRkIGJnY29sb3I9IiNjMmFiYWIi PsKgPC90ZD48dGQgd2lkdGg9IjQiIGJnY29sb3I9IiM4NjYyNjIiPsKgPC90ZD48dGQgYmdjb2xv cj0iIzg2NjI2MiI+wqA8L3RkPjx0ZCBiZ2NvbG9yPSIjZDhjOWM5Ij7CoDwvdGQ+PHRkIGJnY29s b3I9IiNjMmFiYWIiPsKgPC90ZD48dGQgYmdjb2xvcj0iI2E0ODI4MiI+wqA8L3RkPjx0ZCBiZ2Nv bG9yPSIjODY2MjYyIj7CoDwvdGQ+PC90cj48L3Rib2R5PjwvdGFibGU+PC9kaXY+PC9kaXY+DQo= ------------11D073358F5B8564-- From aluno3@poczta.onet.pl Thu Nov 26 04:22:08 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3FEB97F37 for ; Thu, 26 Nov 2015 04:22:08 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2EE5C30405F for ; Thu, 26 Nov 2015 02:22:08 -0800 (PST) X-ASG-Debug-ID: 1448533321-04cbb0605d240a40001-NocioJ Received: from smtpo65.poczta.onet.pl (smtpo33.poczta.onet.pl [213.180.142.164]) by cuda.sgi.com with ESMTP id N9tBRlMXodoVdHgR (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 26 Nov 2015 02:22:02 -0800 (PST) X-Barracuda-Envelope-From: aluno3@poczta.onet.pl X-Barracuda-Apparent-Source-IP: 213.180.142.164 Received: from [192.168.176.22] (host8514118246.static.open-e.3s.pl [85.14.118.246]) (Authenticated sender: aluno3@poczta.onet.pl) by smtp.poczta.onet.pl (Onet) with ESMTPA id 3p5w9y1ZvFzT1pb5r for ; Thu, 26 Nov 2015 11:21:57 +0100 (CET) To: xfs@oss.sgi.com From: "aluno3@poczta.onet.pl" Subject: Which xfsprogs version to which kernel version X-Enigmail-Draft-Status: N1110 X-ASG-Orig-Subj: Which xfsprogs version to which kernel version Message-ID: <5656DD39.8060403@poczta.onet.pl> Date: Thu, 26 Nov 2015 11:21:45 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: smtpo33.poczta.onet.pl[213.180.142.164] X-Barracuda-Start-Time: 1448533322 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24740 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hello, I am using kernel 3.10 and would like to update xfsprogs (currently I have 3.1.5). When I tried to use the newest version of xfsprogs 4.3.0 I get the call trace about detected version 5 of superblock when mounting volume which was formatted using mkfs.xfs from 4.3.0. [ 606.853643] XFS (zd32): Version 5 superblock detected. This kernel has EXPERIMENTAL support enabled! Use of these features in this kernel is at your own risk! [ 606.853649] XFS (zd32): Superblock has unknown read-only compatible features (0x1) enabled. [ 606.853651] XFS (zd32): Attempted to mount read-only compatible filesystem read-write. Filesystem can only be safely mounted read only. [ 606.853654] ffff880067a71000: 58 46 53 42 00 00 10 00 00 00 00 00 01 90 00 00 XFSB............ [ 606.853657] ffff880067a71010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 606.853658] ffff880067a71020: 63 d1 24 9f 21 3d 44 a0 8c 51 5b 4e 31 1a 70 1e c.$.!=D..Q[N1.p. [ 606.853660] ffff880067a71030: 00 00 00 00 01 00 00 05 00 00 00 00 00 00 00 60 ...............` [ 606.853663] XFS (zd32): Internal error xfs_sb_read_verify at line 730 of file fs/xfs/xfs_mount.c. Caller 0xffffffff81256c7d [ 606.853667] CPU: 0 PID: 200 Comm: kworker/0:1H Tainted: P O 3.10.92-oe64-ge331686 #15 [ 606.853668] Hardware name: System manufacturer System Product Name/P5WDG2 WS Pro, BIOS 0905 03/06/2008 [ 606.853675] Workqueue: xfslogd xfs_buf_iodone_work [ 606.853677] ffffffff81692f75 ffffffff81258c5d ffffffff81256c7d ffffffff818a39e3 [ 606.853680] ffff88005dcab200 0000000000000016 ffff880052c11800 0000000000000200 [ 606.853683] ffff88007ea17800 ffffffff812a32ac ffffffff81256c7d 000000007ea11a40 [ 606.853686] Call Trace: [ 606.853692] [] ? dump_stack+0xc/0x15 [ 606.853695] [] ? xfs_corruption_error+0x8d/0x90 [ 606.853698] [] ? xfs_buf_iodone_work+0x6d/0x90 [ 606.853703] [] ? xfs_sb_read_verify+0xfc/0x120 [ 606.853705] [] ? xfs_buf_iodone_work+0x6d/0x90 [ 606.853708] [] ? xfs_buf_iodone_work+0x6d/0x90 [ 606.853712] [] ? process_one_work+0x13d/0x3b0 [ 606.853715] [] ? worker_thread+0x121/0x3d0 [ 606.853717] [] ? manage_workers.isra.26+0x280/0x280 [ 606.853721] [] ? kthread+0xc2/0xd0 [ 606.853725] [] ? sched_clock_cpu+0x30/0x100 [ 606.853728] [] ? kthread_create_on_node+0x110/0x110 [ 606.853731] [] ? ret_from_fork+0x58/0x90 [ 606.853734] [] ? kthread_create_on_node+0x110/0x110 [ 606.853736] XFS (zd32): Corruption detected. Unmount and run xfs_repair [ 606.853742] XFS (zd32): SB validate failed with error 22. Dave in thread http://oss.sgi.com/archives/xfs/2015-08/msg00528.html advises to disable crc and finobt: mkfs.xfs -m crc=0,finobt=0 but it does not work with 4.X version of xfsprogs. Call trace also occurred so I tried to use 3.2.4 family with crc=0,finobt=0 and volume mounted successfully. Dave also noticed: i.e. if Gentoo are shipping xfsprogs 3.2.4 w/ kernel 3.14.51, then Gentoo has a quality control problem - they have failed to verify that the packages they are shipping work correctly before shipping them to users... that using 3.2.4 with kernel 3.14.51 is not good idea so are you able to advise which version of xfsprogs is the best for kernel 3.10? Please note that update the kernel in my environment is not possible in easy way so I need to stay with 3.10. From cmaiolino@redhat.com Thu Nov 26 05:31:04 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C4AF77F37 for ; Thu, 26 Nov 2015 05:31:04 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3D3D2AC001 for ; Thu, 26 Nov 2015 03:31:01 -0800 (PST) X-ASG-Debug-ID: 1448537459-04cbb0605c2425e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id SQdrgQaCAHyyEJOf (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 26 Nov 2015 03:30:59 -0800 (PST) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 103248E241 for ; Thu, 26 Nov 2015 11:30:59 +0000 (UTC) Received: from redhat.com (dhcp-26-103.brq.redhat.com [10.34.26.103]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAQBUtwv019342 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 26 Nov 2015 06:30:58 -0500 Date: Thu, 26 Nov 2015 12:30:55 +0100 From: Carlos Maiolino To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/2] xfs_io: implement 'inode' command V4 Message-ID: <20151126113052.GA15663@redhat.com> X-ASG-Orig-Subj: Re: [PATCH 1/2] xfs_io: implement 'inode' command V4 Mail-Followup-To: Brian Foster , xfs@oss.sgi.com References: <1447663404-7857-1-git-send-email-cmaiolino@redhat.com> <1447663404-7857-2-git-send-email-cmaiolino@redhat.com> <20151119132722.GA13055@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151119132722.GA13055@bfoster.bfoster> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448537459 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi Brian, > > Well, the code looks Ok to me but the design still seems overdone IMO. I > have no major objection if this goes in as is (with one exception noted > below), but IMO we should take the approach somewhat discussed in the v3 > review. First of all, thanks for reviewing the patch again, I took some time to reply because I was waiting for any other comments and had a few other things to do. > > In particular, define an actual default behavior for the command to > return the largest inode number (or return 1/0 for "ability to mount w/ > inode32" as Dave suggested). For example, kill both of the -l and -s > flags and just return 1/0 by default. Define a single verbose (-v) flag > to print the combined inode number and size. This mode can be > implemented as the body of the inode_f() function. If -n is specified, > basically do what the current version does. Just my .02. > I agree with you here and tbh, I don't really think a -v flag is really needed, although it can certainly facilitate the usage of the xfs_io -c "inode". Checking for the size of the inode returned against UINT32_MAX is not that hard anyway, but I think keeping a very simple return value for the command might be the best approach. I'm going to re-write it and send a V5 today including a review of your comment below. thanks again for the review > > io/open.c | 151 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > 1 file changed, 151 insertions(+) > > > > diff --git a/io/open.c b/io/open.c > > index ac5a5e0..2fc8aab 100644 > > --- a/io/open.c > > +++ b/io/open.c > ... > > + if (ret_lsize || ret_largest) { > > + > > + bulkreq.lastip = &last; > > + bulkreq.icount = 1024; /* User-defined maybe!? */ > > + bulkreq.ubuffer = &igroup; > > + bulkreq.ocount = &count; > > + > > + for (;;) { > > + > > + if (xfsctl(file->name, file->fd, XFS_IOC_FSINUMBERS, > > + &bulkreq)) { > > + perror("XFS_IOC_FSINUMBERS"); > > + exitcode = 1; > > + return 0; > > + } > > + > > + if (count == 0) > > + break; > > + > > + lastgrp = count; > > + } > > + > > + lastgrp--; > > + igrp_rec = igroup[lastgrp]; > > IIRC the point of igrp_rec was to save off the last record so it could > be used directly after the loop without need for the count (because it > could be 0). Here we use a separate lastgrp count to protect against the > 0 case, yet still do the record copy after the loop... what's the point > of that? > > Brian > > > + lastino = igrp_rec.xi_startino + > > + xfs_highbit64(igrp_rec.xi_allocmask); > > + > > + if (ret_lsize) > > + printf (_("Largest inode size: %d\n"), > > + lastino > XFS_MAXINUMBER_32 ? 64 : 32); > > + else > > + printf(_("Largest inode: %llu\n"), lastino); > > + > > + return 0; > > + } > > + > > + return command_usage(&inode_cmd); > > +} > > + > > void > > open_init(void) > > { > > @@ -815,6 +955,16 @@ open_init(void) > > _("get/set preferred extent size (in bytes) for the open file"); > > extsize_cmd.help = extsize_help; > > > > + inode_cmd.name = "inode"; > > + inode_cmd.cfunc = inode_f; > > + inode_cmd.args = _("[-s | -l | -n] [num]"); > > + inode_cmd.argmin = 1; > > + inode_cmd.argmax = 2; > > + inode_cmd.flags = CMD_NOMAP_OK; > > + inode_cmd.oneline = > > + _("Query inode number usage in the filesystem"); > > + inode_cmd.help = inode_help; > > + > > add_command(&open_cmd); > > add_command(&stat_cmd); > > add_command(&close_cmd); > > @@ -822,4 +972,5 @@ open_init(void) > > add_command(&chproj_cmd); > > add_command(&lsproj_cmd); > > add_command(&extsize_cmd); > > + add_command(&inode_cmd); > > } > > -- > > 2.4.3 > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs -- Carlos From eflorac@intellique.com Thu Nov 26 06:26:46 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 079D87F37 for ; Thu, 26 Nov 2015 06:26:46 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id DFDBA304032 for ; Thu, 26 Nov 2015 04:26:42 -0800 (PST) X-ASG-Debug-ID: 1448540797-04cbb0605d243f70001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id cl8pRkpmgjcLUVcm (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 26 Nov 2015 04:26:37 -0800 (PST) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id C55922CB68; Thu, 26 Nov 2015 07:26:36 -0500 (EST) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail1.g1.pair.com (Postfix) with ESMTPSA id 082032CB28; Thu, 26 Nov 2015 07:26:35 -0500 (EST) Date: Thu, 26 Nov 2015 13:26:38 +0100 From: Emmanuel Florac To: "aluno3@poczta.onet.pl" Cc: xfs@oss.sgi.com Subject: Re: Which xfsprogs version to which kernel version Message-ID: <20151126132638.53ed9fc7@harpe.intellique.com> X-ASG-Orig-Subj: Re: Which xfsprogs version to which kernel version In-Reply-To: <5656DD39.8060403@poczta.onet.pl> References: <5656DD39.8060403@poczta.onet.pl> Organization: Intellique X-Mailer: Claws Mail 3.12.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1448540797 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24742 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Le Thu, 26 Nov 2015 11:21:45 +0100 "aluno3@poczta.onet.pl" =C3=A9crivait: > mkfs.xfs -m crc=3D0,finobt=3D0 >=20 > but it does not work with 4.X version of xfsprogs. Call trace also > occurred so I tried to use 3.2.4 family with crc=3D0,finobt=3D0 and volume > mounted successfully. >=20 Did you use -f? else mkfs.xfs won't do anything as it'll detect an existing filesystem. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From aluno3@poczta.onet.pl Thu Nov 26 07:19:09 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 38F537F37 for ; Thu, 26 Nov 2015 07:19:09 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1ACB230405F for ; Thu, 26 Nov 2015 05:19:05 -0800 (PST) X-ASG-Debug-ID: 1448543942-04cbb0605b2452e0001-NocioJ Received: from smtpo64.poczta.onet.pl (smtpo64.poczta.onet.pl [141.105.16.14]) by cuda.sgi.com with ESMTP id VQHiXMKenXOlsyv4 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 26 Nov 2015 05:19:03 -0800 (PST) X-Barracuda-Envelope-From: aluno3@poczta.onet.pl X-Barracuda-Apparent-Source-IP: 141.105.16.14 Received: from [192.168.176.22] (host8514118246.static.open-e.3s.pl [85.14.118.246]) (Authenticated sender: aluno3@poczta.onet.pl) by smtp.poczta.onet.pl (Onet) with ESMTPA id 3p60784y2Wz1XRJdS; Thu, 26 Nov 2015 14:19:48 +0100 (CET) Subject: Re: Which xfsprogs version to which kernel version To: Emmanuel Florac X-ASG-Orig-Subj: Re: Which xfsprogs version to which kernel version References: <5656DD39.8060403@poczta.onet.pl> <20151126132638.53ed9fc7@harpe.intellique.com> Cc: xfs@oss.sgi.com From: "aluno3@poczta.onet.pl" X-Enigmail-Draft-Status: N1110 Message-ID: <565706BB.3030006@poczta.onet.pl> Date: Thu, 26 Nov 2015 14:18:51 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <20151126132638.53ed9fc7@harpe.intellique.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: smtpo64.poczta.onet.pl[141.105.16.14] X-Barracuda-Start-Time: 1448543943 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24744 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Yes I used -f option with 4.X version of xfsprogs but mounting the volume was not possible - before mkfs.xfs finished successfully (mkfs.xfs -f -m crc=0,finobt=0). Should I stay in 3.1.X family of xfsprogs or is it recommended to use at least 3.2.x version with kernel 3.10? The most I care about xfs_repair. On 11/26/15 13:26, Emmanuel Florac wrote: > Le Thu, 26 Nov 2015 11:21:45 +0100 > "aluno3@poczta.onet.pl" écrivait: > >> mkfs.xfs -m crc=0,finobt=0 >> >> but it does not work with 4.X version of xfsprogs. Call trace also >> occurred so I tried to use 3.2.4 family with crc=0,finobt=0 and volume >> mounted successfully. >> > > Did you use -f? else mkfs.xfs won't do anything as it'll detect an > existing filesystem. > From bfoster@redhat.com Thu Nov 26 07:49:36 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 81EA77F37 for ; Thu, 26 Nov 2015 07:49:36 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 60C65304048 for ; Thu, 26 Nov 2015 05:49:36 -0800 (PST) X-ASG-Debug-ID: 1448545774-04cbb0605e245ca0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id AbxhYqGHJ3UQtS6F (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 26 Nov 2015 05:49:35 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id A71D4461C7 for ; Thu, 26 Nov 2015 13:49:34 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAQDnYp3028488; Thu, 26 Nov 2015 08:49:34 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 76595122406; Thu, 26 Nov 2015 08:49:33 -0500 (EST) Date: Thu, 26 Nov 2015 08:49:33 -0500 From: Brian Foster To: Masatake YAMATO Cc: xfs@oss.sgi.com Subject: Re: [PATCH v2] xfs: send warning of project quota to userspace via netlink Message-ID: <20151126134933.GA39911@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH v2] xfs: send warning of project quota to userspace via netlink References: <20151125185419.GA18719@bfoster.bfoster> <1448504560-25151-1-git-send-email-yamato@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1448504560-25151-1-git-send-email-yamato@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448545775 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Nov 26, 2015 at 11:22:39AM +0900, Masatake YAMATO wrote: > Linux's quota subsystem has an ability to handle > project quota. This commit just utilizes the ability > from xfs side. > ... > Changes in v2: > > a couple aesthetic things suggested by Brian Foster . > * rename local vairable for aligning the parameter names, > * move a short line to the end of its previous line. > > Signed-off-by: Masatake YAMATO > --- Thanks for all of the test information. Now you have a really long commit log description rather than a short one. ;) Maybe Dave can truncate it. Regardless, looks fine to me: Reviewed-by: Brian Foster > fs/xfs/xfs_trans_dquot.c | 14 +++++++++----- > 1 file changed, 9 insertions(+), 5 deletions(-) > > diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c > index ce78534..9951701 100644 > --- a/fs/xfs/xfs_trans_dquot.c > +++ b/fs/xfs/xfs_trans_dquot.c > @@ -572,12 +572,16 @@ xfs_quota_warn( > struct xfs_dquot *dqp, > int type) > { > - /* no warnings for project quotas - we just return ENOSPC later */ > + enum quota_type qtype; > + > if (dqp->dq_flags & XFS_DQ_PROJ) > - return; > - quota_send_warning(make_kqid(&init_user_ns, > - (dqp->dq_flags & XFS_DQ_USER) ? > - USRQUOTA : GRPQUOTA, > + qtype = PRJQUOTA; > + else if (dqp->dq_flags & XFS_DQ_USER) > + qtype = USRQUOTA; > + else > + qtype = GRPQUOTA; > + > + quota_send_warning(make_kqid(&init_user_ns, qtype, > be32_to_cpu(dqp->q_core.d_id)), > mp->m_super->s_dev, type); > } > -- > 2.5.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Thu Nov 26 07:50:56 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id F1E477F37 for ; Thu, 26 Nov 2015 07:50:56 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id D3EF4304051 for ; Thu, 26 Nov 2015 05:50:56 -0800 (PST) X-ASG-Debug-ID: 1448545855-04bdf07f0925e830001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id b6FpzTuJnoLEnq5S (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 26 Nov 2015 05:50:55 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 1FB548F283; Thu, 26 Nov 2015 13:50:54 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-225.bos.redhat.com [10.18.41.225]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAQDosxD007046; Thu, 26 Nov 2015 08:50:54 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 59C78122406; Thu, 26 Nov 2015 08:50:53 -0500 (EST) Date: Thu, 26 Nov 2015 08:50:53 -0500 From: Brian Foster To: "aluno3@poczta.onet.pl" Cc: Emmanuel Florac , xfs@oss.sgi.com Subject: Re: Which xfsprogs version to which kernel version Message-ID: <20151126135053.GB39911@bfoster.bfoster> X-ASG-Orig-Subj: Re: Which xfsprogs version to which kernel version References: <5656DD39.8060403@poczta.onet.pl> <20151126132638.53ed9fc7@harpe.intellique.com> <565706BB.3030006@poczta.onet.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <565706BB.3030006@poczta.onet.pl> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448545855 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Nov 26, 2015 at 02:18:51PM +0100, aluno3@poczta.onet.pl wrote: > Yes I used -f option with 4.X version of xfsprogs but mounting the > volume was not possible - before mkfs.xfs finished successfully > (mkfs.xfs -f -m crc=0,finobt=0). > You posted the output associated with the crc=1 fs mount failure, what happens when you try to mount after formatting with crc=0? Brian > Should I stay in 3.1.X family of xfsprogs or is it recommended to use at > least 3.2.x version with kernel 3.10? > > The most I care about xfs_repair. > > On 11/26/15 13:26, Emmanuel Florac wrote: > > Le Thu, 26 Nov 2015 11:21:45 +0100 > > "aluno3@poczta.onet.pl" écrivait: > > > >> mkfs.xfs -m crc=0,finobt=0 > >> > >> but it does not work with 4.X version of xfsprogs. Call trace also > >> occurred so I tried to use 3.2.4 family with crc=0,finobt=0 and volume > >> mounted successfully. > >> > > > > Did you use -f? else mkfs.xfs won't do anything as it'll detect an > > existing filesystem. > > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From aluno3@poczta.onet.pl Thu Nov 26 08:37:18 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3AEE67F37 for ; Thu, 26 Nov 2015 08:37:18 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2B69A304048 for ; Thu, 26 Nov 2015 06:37:18 -0800 (PST) X-ASG-Debug-ID: 1448548631-04cbb0605c246cb0001-NocioJ Received: from smtpo80.poczta.onet.pl (smtpo80.poczta.onet.pl [141.105.16.30]) by cuda.sgi.com with ESMTP id ZXjWAs8DtaQQlMRo (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 26 Nov 2015 06:37:12 -0800 (PST) X-Barracuda-Envelope-From: aluno3@poczta.onet.pl X-Barracuda-Apparent-Source-IP: 141.105.16.30 Received: from [192.168.176.22] (host8514118246.static.open-e.3s.pl [85.14.118.246]) (Authenticated sender: aluno3@poczta.onet.pl) by smtp.poczta.onet.pl (Onet) with ESMTPA id 3p61rH4bFBzDQxpW5; Thu, 26 Nov 2015 15:37:03 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=poczta.onet.pl; s=2011; t=1448548624; bh=wqFjbPJF3DiInjo3AyzENzKwwLE0psgyanFMtv1Q+N4=; h=Subject:To:References:Cc:From:Date:In-Reply-To:From; b=dob85EovWsIvof8x9Krabv5wqjV//of5QTzjbMQSplUNWPcm6F14wtTW+5mljqcz7 AWHBqzYjQ8BOmzG2K7vLwdFEmT08apCbNrbu3hZgXaLisW+fJTdX4VNUFQvptgHUkc GGCH1Nbf4JYMmQUra8SQJj3ZWKCsY3J2bDhUlOv8= Subject: Re: Which xfsprogs version to which kernel version To: Brian Foster X-ASG-Orig-Subj: Re: Which xfsprogs version to which kernel version References: <5656DD39.8060403@poczta.onet.pl> <20151126132638.53ed9fc7@harpe.intellique.com> <565706BB.3030006@poczta.onet.pl> <20151126135053.GB39911@bfoster.bfoster> Cc: Emmanuel Florac , xfs@oss.sgi.com From: "aluno3@poczta.onet.pl" X-Enigmail-Draft-Status: N1110 Message-ID: <5657190A.1050103@poczta.onet.pl> Date: Thu, 26 Nov 2015 15:36:58 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <20151126135053.GB39911@bfoster.bfoster> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: smtpo80.poczta.onet.pl[141.105.16.30] X-Barracuda-Start-Time: 1448548632 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24744 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature dmesg when mounting volume which was formated xfsprogs 4.3.0: * root@192.168.176.24:~$ mkfs.xfs -V mkfs.xfs version 4.3.0 root@192.168.176.24:~$ mkfs.xfs -f -m crc=0,finobt=0 /dev/sdc4 meta-data=/dev/sdc4 isize=256 agcount=4, agsize=474552 blks = sectsz=512 attr=2, projid32bit=1 = crc=0 finobt=0, sparse=0 data = bsize=4096 blocks=1898208, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=1 log =internal log bsize=4096 blocks=2560, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 root@192.168.176.24:~$ mount /dev/sdc4 /mnt/sdc4 mount: wrong fs type, bad option, bad superblock on /dev/sdc4, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so. root@192.168.176.24:~$ dmesg [ 212.984534] XFS (sdc4): bad version [ 212.984547] ffff88005cccb000: 58 46 53 42 00 00 10 00 00 00 00 00 00 1c f6 e0 XFSB............ [ 212.984550] ffff88005cccb010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 212.984551] ffff88005cccb020: 55 9d 20 d9 1c e9 4e a9 a3 ee 8d fd ba 68 b3 70 U. ...N......h.p [ 212.984553] ffff88005cccb030: 00 00 00 00 00 10 00 04 00 00 00 00 00 00 00 80 ................ [ 212.984556] XFS (sdc4): Internal error xfs_sb_read_verify at line 730 of file fs/xfs/xfs_mount.c. Caller 0xffffffff81256c7d [ 212.984560] CPU: 0 PID: 440 Comm: kworker/0:1H Tainted: P O 3.10.92-oe64-ge331686 #15 [ 212.984562] Hardware name: System manufacturer System Product Name/P5WDG2 WS Pro, BIOS 0905 03/06/2008 [ 212.984567] Workqueue: xfslogd xfs_buf_iodone_work [ 212.984570] ffffffff81692f75 ffffffff81258c5d ffffffff81256c7d ffffffff818a39e3 [ 212.984573] ffff88007aa9ef00 0000000000000016 ffff88007aa8b000 0000000000000000 [ 212.984576] ffff88007ea17800 ffffffff812a32ac ffffffff81256c7d ffff88007ea11a40 [ 212.984579] Call Trace: [ 212.984584] [] ? dump_stack+0xc/0x15 [ 212.984587] [] ? xfs_corruption_error+0x8d/0x90 [ 212.984590] [] ? xfs_buf_iodone_work+0x6d/0x90 [ 212.984595] [] ? xfs_sb_read_verify+0xfc/0x120 [ 212.984598] [] ? xfs_buf_iodone_work+0x6d/0x90 [ 212.984600] [] ? xfs_buf_iodone_work+0x6d/0x90 [ 212.984604] [] ? process_one_work+0x13d/0x3b0 [ 212.984607] [] ? worker_thread+0x121/0x3d0 [ 212.984609] [] ? manage_workers.isra.26+0x280/0x280 [ 212.984613] [] ? kthread+0xc2/0xd0 [ 212.984616] [] ? sched_clock_cpu+0x30/0x100 [ 212.984619] [] ? kthread_create_on_node+0x110/0x110 [ 212.984623] [] ? ret_from_fork+0x58/0x90 [ 212.984626] [] ? kthread_create_on_node+0x110/0x110 [ 212.984628] XFS (sdc4): Corruption detected. Unmount and run xfs_repair [ 212.984634] XFS (sdc4): SB validate failed with error 22. * On 11/26/15 14:50, Brian Foster wrote: > On Thu, Nov 26, 2015 at 02:18:51PM +0100, aluno3@poczta.onet.pl wrote: >> Yes I used -f option with 4.X version of xfsprogs but mounting the >> volume was not possible - before mkfs.xfs finished successfully >> (mkfs.xfs -f -m crc=0,finobt=0). >> > > You posted the output associated with the crc=1 fs mount failure, what > happens when you try to mount after formatting with crc=0? > > Brian > >> Should I stay in 3.1.X family of xfsprogs or is it recommended to use at >> least 3.2.x version with kernel 3.10? >> >> The most I care about xfs_repair. >> >> On 11/26/15 13:26, Emmanuel Florac wrote: >>> Le Thu, 26 Nov 2015 11:21:45 +0100 >>> "aluno3@poczta.onet.pl" écrivait: >>> >>>> mkfs.xfs -m crc=0,finobt=0 >>>> >>>> but it does not work with 4.X version of xfsprogs. Call trace also >>>> occurred so I tried to use 3.2.4 family with crc=0,finobt=0 and volume >>>> mounted successfully. >>>> >>> >>> Did you use -f? else mkfs.xfs won't do anything as it'll detect an >>> existing filesystem. >>> >> >> _______________________________________________ >> xfs mailing list >> xfs@oss.sgi.com >> http://oss.sgi.com/mailman/listinfo/xfs From cmaiolino@redhat.com Thu Nov 26 09:46:43 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id ED3167F37 for ; Thu, 26 Nov 2015 09:46:43 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id CB8E9304066 for ; Thu, 26 Nov 2015 07:46:43 -0800 (PST) X-ASG-Debug-ID: 1448552801-04cb6c0cd32092e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id DvE76R64haXWBkr3 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 26 Nov 2015 07:46:42 -0800 (PST) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 817758E22B for ; Thu, 26 Nov 2015 15:46:41 +0000 (UTC) Received: from zion.usersys.redhat.com (dhcp-26-103.brq.redhat.com [10.34.26.103]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAQFke6V022027 for ; Thu, 26 Nov 2015 10:46:40 -0500 From: Carlos Maiolino To: xfs@oss.sgi.com Subject: [PATCH] xfs_io: implement 'inode' command V5 Date: Thu, 26 Nov 2015 16:46:35 +0100 X-ASG-Orig-Subj: [PATCH] xfs_io: implement 'inode' command V5 Message-Id: <1448552795-8794-1-git-send-email-cmaiolino@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448552802 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Implements a new xfs_io command, named 'inode', which is supposed to be used to query information about inode's existence and its physical size in the filesystem. Supported options: Default: -- Return true(1) or false(0) if any inode greater than 32bits has been found in the filesystem -v -- verbose mode Display the number and the physical size (in bits) of the largest inode in the filesystem [num] -- Return true(1) or false(0) if the inode [num] is in use -n [num] -- Return the next valid inode after [num] No manpage sent because there were changes in the supported options and its descriptions. I'll send the manpage after the options and descriptions are reviewed. - Changelog V3: - Merge all 3 patches from the V2 together in a single patch - Rework of '-n [num]' and 'num' only arguments algorithm - Argument -n now relies on bulkreq.count to check for next inodes, not on bstat.bs_ino anymore. - for loop in ret_lsize or ret_largest case, now relies on count being 0 to break the loop V4: - Refactor inode_f function to reduce its size and easier logic - Implement error handlers for invalid command combination (hopefully all invalid combinations). - use a single xfs_inogrp array for keep track of inodes - Fix missing newline in inode_help() - Rewrite help message in inode_help() - Fix indentation V5: - Reduce the amount of options - remove igrp_rec variable, and use igroup[lastgrp] directly to get information from the last inode groups returned by ioctl Signed-off-by: Carlos Maiolino --- io/open.c | 143 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 143 insertions(+) diff --git a/io/open.c b/io/open.c index ac5a5e0..1e38ea8 100644 --- a/io/open.c +++ b/io/open.c @@ -20,6 +20,7 @@ #include "input.h" #include "init.h" #include "io.h" +#include "libxfs.h" #ifndef __O_TMPFILE #if defined __alpha__ @@ -44,6 +45,7 @@ static cmdinfo_t statfs_cmd; static cmdinfo_t chproj_cmd; static cmdinfo_t lsproj_cmd; static cmdinfo_t extsize_cmd; +static cmdinfo_t inode_cmd; static prid_t prid; static long extsize; @@ -750,6 +752,136 @@ statfs_f( return 0; } +static void +inode_help(void) +{ + printf(_( +"\n" +"Query physical information about the inode" +"\n" +" Default: -- Return true(1) or false(0) if any inode greater than\n" +" 32bits has been found in the filesystem\n" +" -v -- verbose mode\n" +" Display the number and the physical size (in bits)\n" +" of the largest inode in the filesystem\n" +"[num] -- Return true(1) or false(0) if the inode [num] is in use\n" +" -n [num] -- Return the next valid inode after [num]\n" +"\n")); +} + +static int +inode_f( + int argc, + char **argv) +{ + __s32 count = 0; + __s32 lastgrp = 0; + __u64 last = 0; + __u64 lastino = 0; + __u64 userino = 0; + char *p; + int c; + int verbose = 0; + int ret_next = 0; + int cmd = 0; + struct xfs_inogrp igroup[1024]; + struct xfs_fsop_bulkreq bulkreq; + struct xfs_bstat bstat; + + while ((c = getopt(argc, argv, "nv")) != EOF) { + switch (c) { + case 'v': + verbose = 1; + break; + case 'n': + ret_next = 1; + break; + default: + return command_usage(&inode_cmd); + } + } + + if (ret_next && verbose) + return command_usage(&inode_cmd); + + if (optind < argc) { + if (verbose) + return command_usage(&inode_cmd); + + if (ret_next) { + cmd = XFS_IOC_FSBULKSTAT; + } else { + if (argc > 2) + return command_usage(&inode_cmd); + else + cmd = XFS_IOC_FSBULKSTAT_SINGLE; + } + + userino = strtoull(argv[optind], &p, 10); + if ((*p != '\0')) { + printf(_("[num] must be a numeric value\n")); + exitcode = 1; + return 0; + } + + bulkreq.lastip = &userino; + bulkreq.icount = 1; + bulkreq.ubuffer = &bstat; + bulkreq.ocount = &count; + + if (xfsctl(file->name, file->fd, cmd, &bulkreq)) { + if (errno == EINVAL) { + if (!ret_next) + printf("0\n"); + } else { + perror("xfsctl"); + } + exitcode = 1; + return 0; + } + + if (ret_next) { + printf("%llu\n", bstat.bs_ino); + return 0; + } else { + /* Inode number used*/ + printf("1\n"); + return 0; + } + } + + bulkreq.lastip = &last; + bulkreq.icount = 1024; /* User-defined maybe!? */ + bulkreq.ubuffer = &igroup; + bulkreq.ocount = &count; + + for (;;) { + if (xfsctl(file->name, file->fd, XFS_IOC_FSINUMBERS, + &bulkreq)) { + perror("XFS_IOC_FSINUMBERS"); + exitcode = 1; + return 0; + } + + if (count == 0) + break; + + lastgrp = count; + } + + lastgrp--; + lastino = igroup[lastgrp].xi_startino + + xfs_highbit64(igroup[lastgrp].xi_allocmask); + + if (verbose) + printf("%llu:%d\n", lastino, + lastino > XFS_MAXINUMBER_32 ? 64 : 32); + else + printf("%d\n", lastino > XFS_MAXINUMBER_32 ? 1 : 0); + + return 0; +} + void open_init(void) { @@ -815,6 +947,16 @@ open_init(void) _("get/set preferred extent size (in bytes) for the open file"); extsize_cmd.help = extsize_help; + inode_cmd.name = "inode"; + inode_cmd.cfunc = inode_f; + inode_cmd.args = _("[-n | -v] [num]"); + inode_cmd.argmin = 0; + inode_cmd.argmax = 2; + inode_cmd.flags = CMD_NOMAP_OK; + inode_cmd.oneline = + _("Query inode number usage in the filesystem"); + inode_cmd.help = inode_help; + add_command(&open_cmd); add_command(&stat_cmd); add_command(&close_cmd); @@ -822,4 +964,5 @@ open_init(void) add_command(&chproj_cmd); add_command(&lsproj_cmd); add_command(&extsize_cmd); + add_command(&inode_cmd); } -- 2.4.3 From ftpmaster@ftp-master.debian.org Thu Nov 26 18:40:12 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 060C97F37 for ; Thu, 26 Nov 2015 18:40:12 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id D9F3B8F8035 for ; Thu, 26 Nov 2015 16:40:08 -0800 (PST) X-ASG-Debug-ID: 1448584805-04cb6c0cd3211e40001-NocioJ Received: from mailly.debian.org (mailly.debian.org [82.195.75.114]) by cuda.sgi.com with ESMTP id ME1s2EwLWfcHEKz1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 26 Nov 2015 16:40:06 -0800 (PST) X-Barracuda-Envelope-From: ftpmaster@ftp-master.debian.org X-Barracuda-Apparent-Source-IP: 82.195.75.114 Received: from franck.debian.org ([138.16.160.12]) from C=NA,ST=NA,L=Ankh Morpork,O=Debian SMTP,OU=Debian SMTP CA,CN=franck.debian.org,EMAIL=hostmaster@franck.debian.org (verified) by mailly.debian.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84) (envelope-from ) id 1a2752-0002Db-PV for xfs@oss.sgi.com; Fri, 27 Nov 2015 00:40:04 +0000 Received: from dak-unpriv by franck.debian.org with local (Exim 4.84) (envelope-from ) id 1a2751-0001vH-PH for xfs@oss.sgi.com; Fri, 27 Nov 2015 00:40:03 +0000 To: xfs@oss.sgi.com From: Debian FTP Masters Subject: Processing of xfsprogs_4.3.0_amd64.changes Date: Fri, 27 Nov 2015 00:40:03 +0000 X-ASG-Orig-Subj: Processing of xfsprogs_4.3.0_amd64.changes X-Debian: DAK X-DAK: DAK Precedence: bulk Auto-Submitted: auto-generated X-Debian-Package: xfsprogs Message-Id: X-Barracuda-Connect: mailly.debian.org[82.195.75.114] X-Barracuda-Start-Time: 1448584806 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24755 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- xfsprogs_4.3.0_amd64.changes uploaded successfully to localhost along with the files: xfsprogs_4.3.0.dsc xfsprogs_4.3.0.tar.gz xfslibs-dev_4.3.0_amd64.deb xfsprogs-udeb_4.3.0_amd64.udeb xfsprogs_4.3.0_amd64.deb Greetings, Your Debian queue daemon (running on host franck.debian.org) From envelope@ftp-master.debian.org Thu Nov 26 18:51:04 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CED187F37 for ; 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Fri, 27 Nov 2015 00:50:55 +0000 From: Debian FTP Masters To: XFS Development Team , Nathan Scott X-DAK: dak process-upload X-Debian: DAK X-Debian-Package: xfsprogs Precedence: bulk Auto-Submitted: auto-generated MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Subject: xfsprogs_4.3.0_amd64.changes ACCEPTED into unstable Message-Id: X-ASG-Orig-Subj: xfsprogs_4.3.0_amd64.changes ACCEPTED into unstable Date: Fri, 27 Nov 2015 00:50:55 +0000 X-Barracuda-Connect: mailly.debian.org[82.195.75.114] X-Barracuda-Start-Time: 1448585459 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24756 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Accepted: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Format: 1.8 Date: Mon, 23 Nov 2015 15:22:56 +1100 Source: xfsprogs Binary: xfsprogs xfslibs-dev xfsprogs-udeb Architecture: source amd64 Version: 4.3.0 Distribution: unstable Urgency: low Maintainer: XFS Development Team Changed-By: Nathan Scott Description: xfslibs-dev - XFS filesystem-specific static libraries and headers xfsprogs - Utilities for managing the XFS filesystem xfsprogs-udeb - A stripped-down version of xfsprogs, for debian-installer (udeb) Closes: 804255 Changes: xfsprogs (4.3.0) unstable; urgency=low . * New upstream release * Add a postinst to update the initramfs on install/upgrade. (Closes: #804255) Checksums-Sha1: 31064221f22a5b20c731e9e3710bf1d6de759341 1763 xfsprogs_4.3.0.dsc cc5e4c06f537de9b9903b29f761c1b7534876b17 1506750 xfsprogs_4.3.0.tar.gz 003e83012c59d84ca33850c1d29b59034397bda9 55212 xfslibs-dev_4.3.0_amd64.deb 379252c78d7eb0dd643f0d136e7db13eabd548bc 134808 xfsprogs-udeb_4.3.0_amd64.udeb 270c3c737ffe7916d9b230e75415a05b46857928 727106 xfsprogs_4.3.0_amd64.deb Checksums-Sha256: 84daf22e23b846ea319a1707d0b79eb2b61f869531ce27d2cfd42e716cf8265a 1763 xfsprogs_4.3.0.dsc a914e45648e04d211304ffd9fadba919be9d66010ec7b19dffad356c8cbf969e 1506750 xfsprogs_4.3.0.tar.gz 233aae38eead8db27346dccd560d7eef1ab5c976df2495f5643a20975223f805 55212 xfslibs-dev_4.3.0_amd64.deb c8e540fce739a617fd2ff7b8e4a8e86d0cfb27a25fa50b04c3ac21dc5bc0ae64 134808 xfsprogs-udeb_4.3.0_amd64.udeb d8cfef3519c98be8e999b1537b6eb57b8b7925a2715b7cc3a7c55d5e642e3a01 727106 xfsprogs_4.3.0_amd64.deb Files: fc99694150b586161106823f245bea72 1763 admin optional xfsprogs_4.3.0.dsc 2a6d2918d8a8a89e6816e0476aa3f316 1506750 admin optional xfsprogs_4.3.0.tar.gz 4a1dd6248c49586edd2081c5c58f1992 55212 libdevel extra xfslibs-dev_4.3.0_amd64.deb 16394c61c03586daba2fc87f68ad386f 134808 debian-installer optional xfsprogs-udeb_4.3.0_amd64.udeb 215fad11dceaeea00cffa2ccabefac2b 727106 admin optional xfsprogs_4.3.0_amd64.deb Package-Type: udeb -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJWV6TdAAoJEP4IQu423YwMF4kP/1CNyghG5Q1Fk3x2P1FUxx5N 4VaANMpUHRTAuPi0r2dRPQehKqeSfnhgMEzREx44eJOS1SgRcwfu6Cls2Hzv9jn0 /pbqVRe3b7Enovb1UQ9Ibfbo3JdqbgYhkEwFCtO4drgYPilT3+Lv9dtTp4WrfEtq zOosPYTU+rsidGkEnLdIojL3yIBxsEVjpOWst3LZKzfpE9Ei8xrELApGYB31+cOT gSWHdlP1C+x6rtAj0lHHvl5MXn/4izRwUsPSKNNqtthp1fcvRcfhXCYpxlpTvmjM YnfOOkYhH3k1zi4QzdpsFJOWlF5QgwoJPy575+v9v1PpN4rov+re4/dbbdwjG+nR /inX+wfw+3NxN9jzD6S6kLQh5oPwGbhQgsaSqwkNd4XqpAbRCyX3LvoYTUOgpsPW yRP3XlJ0nnoFGSBlcltOAQvVIE7fPCebpE2hcO5B4gvVb5O0VRH+N0YxcavwjpPU pG8uqBixzqEvhL+uXZv1MfZMK9WWB912KhK/fErMP5tty/ln+j/eLJ7bBha54MYE G0FU2YprwVp3JBy9GWTmgn7Id4CWftFNYQgEcW/nu/zpXDhmtUor8rdLrbVivnKW 8IcB7SXyN9JMckLhozncOsPmvlS7XKUTKdHB5jvAfRdgioGt+ofwPZRROtqOuYbg P4sV4o6ipK7CyrpzHswD =d896 -----END PGP SIGNATURE----- Thank you for your contribution to Debian. From debbugs@buxtehude.debian.org Thu Nov 26 18:54:14 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B85607F37 for ; Thu, 26 Nov 2015 18:54:13 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5522AAC002 for ; Thu, 26 Nov 2015 16:54:10 -0800 (PST) X-ASG-Debug-ID: 1448585648-04bdf07f09269e30001-NocioJ Received: from buxtehude.debian.org (buxtehude.debian.org [140.211.166.26]) by cuda.sgi.com with ESMTP id hDINMUj29rwvEdSy (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Thu, 26 Nov 2015 16:54:08 -0800 (PST) X-Barracuda-Envelope-From: debbugs@buxtehude.debian.org X-Barracuda-Apparent-Source-IP: 140.211.166.26 Received: from debbugs by buxtehude.debian.org with local (Exim 4.84) (envelope-from ) id 1a27Ia-0007jg-Rv; Fri, 27 Nov 2015 00:54:04 +0000 MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) X-Loop: owner@bugs.debian.org From: owner@bugs.debian.org (Debian Bug Tracking System) To: Nathan Scott Subject: Bug#804255: marked as done (Please update initramfs in postinst) Message-ID: X-ASG-Orig-Subj: Bug#804255: marked as done (Please update initramfs in postinst) References: <20151106161941.15248.86048.reportbug@tack.local> X-Debian-PR-Message: closed 804255 X-Debian-PR-Package: xfsprogs X-Debian-PR-Keywords: d-i patch X-Debian-PR-Source: xfsprogs Date: Fri, 27 Nov 2015 00:54:04 +0000 Content-Type: multipart/mixed; boundary="----------=_1448585644-29734-0" X-Barracuda-Connect: buxtehude.debian.org[140.211.166.26] X-Barracuda-Start-Time: 1448585648 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24756 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This is a multi-part message in MIME format... ------------=_1448585644-29734-0 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Your message dated Fri, 27 Nov 2015 00:50:55 +0000 with message-id and subject line Bug#804255: fixed in xfsprogs 4.3.0 has caused the Debian Bug report #804255, regarding Please update initramfs in postinst to be marked as done. This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact owner@bugs.debian.org immediately.) --=20 804255: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D804255 Debian Bug Tracking System Contact owner@bugs.debian.org with problems ------------=_1448585644-29734-0 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at submit) by bugs.debian.org; 6 Nov 2015 16:20:16 +0000 X-Spam-Checker-Version: SpamAssassin 3.4.0-bugs.debian.org_2005_01_02 (2014-02-07) on buxtehude.debian.org X-Spam-Level: X-Spam-Status: No, score=-11.4 required=4.0 tests=BAYES_00,FOURLA,HAS_PACKAGE, MDO_CABLE_TV3,MURPHY_DRUGS_REL8,SPF_PASS,XMAILER_REPORTBUG autolearn=ham autolearn_force=no version=3.4.0-bugs.debian.org_2005_01_02 X-Spam-Bayes: score:0.0000 Tokens: new, 6; hammy, 150; neutral, 77; spammy, 0. spammytokens: hammytokens:0.000-+--systemd, 0.000-+--H*x:6.6.3, 0.000-+--H*UA:6.6.3, 0.000-+--H*M:reportbug, 0.000-+--H*MI:reportbug Return-path: Received: from cheddar.halon.org.uk ([93.93.131.118]) by buxtehude.debian.org with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.84) (envelope-from ) id 1ZujkO-00012i-4b for submit@bugs.debian.org; Fri, 06 Nov 2015 16:20:16 +0000 Received: from bsmtp by cheddar.halon.org.uk with local-bsmtp (Exim 4.80) (envelope-from ) id 1ZujkI-0005Ac-LY; Fri, 06 Nov 2015 16:20:10 +0000 Received: from steve by tack.local with local (Exim 4.84) (envelope-from ) id 1Zujjp-0007iW-HU; Fri, 06 Nov 2015 16:19:41 +0000 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Steve McIntyre To: Debian Bug Tracking System Subject: Please update initramfs in postinst Message-ID: <20151106161941.15248.86048.reportbug@tack.local> X-Mailer: reportbug 6.6.3 Date: Fri, 06 Nov 2015 16:19:41 +0000 Delivered-To: submit@bugs.debian.org Package: xfsprogs Version: 3.2.1 Severity: important Tags: d-i Hi! Since the move to systemd as the default init system, the initramfs will attempt to fsck and mount both / and /usr (where applicable). To aid this, initramfs-tools will copy necessary filesystem tools into the initramfs when it is generated. To make this work well, all filesystem tools packages for filesystems that are likely to be used for / and/or /usr should call "update-initramfs -u" in their postinst. This will (a) ensure that necesssary fsck tools are included in the initramfs generated by debian-installer (see #801961 for an example failure here); and (b) ensure that bug fixes to fsck tools get included immediately in the initramfs I've checked your package and I don't see any update-initramfs calls. Please add one. If you'd like help doing that postinst work, I can supply a patch - just ask! -- System Information: Debian Release: 8.2 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages xfsprogs depends on: ii libblkid1 2.25.2-6 ii libc6 2.19-18+deb8u1 ii libreadline5 5.2+dfsg-2 ii libuuid1 2.25.2-6 xfsprogs recommends no packages. Versions of packages xfsprogs suggests: ii acl 2.2.52-2 ii attr 1:2.4.47-2 pn quota pn xfsdump -- no debconf information ------------=_1448585644-29734-0 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at 804255-close) by bugs.debian.org; 27 Nov 2015 00:50:59 +0000 X-Spam-Checker-Version: SpamAssassin 3.4.0-bugs.debian.org_2005_01_02 (2014-02-07) on buxtehude.debian.org X-Spam-Level: X-Spam-Status: No, score=-13.9 required=4.0 tests=BAYES_00,DIGITS_LETTERS, FROMDEVELOPER,FVGT_m_MULTI_ODD,HAS_BUG_NUMBER,PGPSIGNATURE,RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD autolearn=ham autolearn_force=no version=3.4.0-bugs.debian.org_2005_01_02 X-Spam-Bayes: score:0.0000 Tokens: new, 88; hammy, 149; neutral, 130; spammy, 1. spammytokens:0.997-1--inX hammytokens:0.000-+--HX-Debian:DAK, 0.000-+--H*rp:D*ftp-master.debian.org, 0.000-+--H*MI:franck, 0.000-+--H*m:franck, 0.000-+--HX-DAK:process-upload Return-path: Received: from mailly.debian.org ([82.195.75.114]) from C=NA,ST=NA,L=Ankh Morpork,O=Debian SMTP,OU=Debian SMTP CA,CN=mailly.debian.org,EMAIL=hostmaster@mailly.debian.org (verified) by buxtehude.debian.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84) (envelope-from ) id 1a27Fa-0007cL-Nb for 804255-close@bugs.debian.org; Fri, 27 Nov 2015 00:50:58 +0000 Received: from franck.debian.org ([138.16.160.12]) from C=NA,ST=NA,L=Ankh Morpork,O=Debian SMTP,OU=Debian SMTP CA,CN=franck.debian.org,EMAIL=hostmaster@franck.debian.org (verified) by mailly.debian.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84) (envelope-from ) id 1a27FY-0003Ly-Fg; Fri, 27 Nov 2015 00:50:56 +0000 Received: from dak by franck.debian.org with local (Exim 4.84) (envelope-from ) id 1a27FX-0002t6-B4; Fri, 27 Nov 2015 00:50:55 +0000 From: Nathan Scott To: 804255-close@bugs.debian.org X-DAK: dak process-upload X-Debian: DAK X-Debian-Package: xfsprogs MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Subject: Bug#804255: fixed in xfsprogs 4.3.0 Message-Id: Date: Fri, 27 Nov 2015 00:50:55 +0000 Source: xfsprogs Source-Version: 4.3.0 We believe that the bug you reported is fixed in the latest version of xfsprogs, which is due to be installed in the Debian FTP archive. A summary of the changes between this version and the previous one is attached. Thank you for reporting the bug, which will now be closed. If you have further comments please address them to 804255@bugs.debian.org, and the maintainer will reopen the bug report if appropriate. Debian distribution maintenance software pp. Nathan Scott (supplier of updated xfsprogs package) (This message was generated automatically at their request; if you believe that there is a problem with it please contact the archive administrators by mailing ftpmaster@ftp-master.debian.org) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Format: 1.8 Date: Mon, 23 Nov 2015 15:22:56 +1100 Source: xfsprogs Binary: xfsprogs xfslibs-dev xfsprogs-udeb Architecture: source amd64 Version: 4.3.0 Distribution: unstable Urgency: low Maintainer: XFS Development Team Changed-By: Nathan Scott Description: xfslibs-dev - XFS filesystem-specific static libraries and headers xfsprogs - Utilities for managing the XFS filesystem xfsprogs-udeb - A stripped-down version of xfsprogs, for debian-installer (udeb) Closes: 804255 Changes: xfsprogs (4.3.0) unstable; urgency=low . * New upstream release * Add a postinst to update the initramfs on install/upgrade. (Closes: #804255) Checksums-Sha1: 31064221f22a5b20c731e9e3710bf1d6de759341 1763 xfsprogs_4.3.0.dsc cc5e4c06f537de9b9903b29f761c1b7534876b17 1506750 xfsprogs_4.3.0.tar.gz 003e83012c59d84ca33850c1d29b59034397bda9 55212 xfslibs-dev_4.3.0_amd64.deb 379252c78d7eb0dd643f0d136e7db13eabd548bc 134808 xfsprogs-udeb_4.3.0_amd64.udeb 270c3c737ffe7916d9b230e75415a05b46857928 727106 xfsprogs_4.3.0_amd64.deb Checksums-Sha256: 84daf22e23b846ea319a1707d0b79eb2b61f869531ce27d2cfd42e716cf8265a 1763 xfsprogs_4.3.0.dsc a914e45648e04d211304ffd9fadba919be9d66010ec7b19dffad356c8cbf969e 1506750 xfsprogs_4.3.0.tar.gz 233aae38eead8db27346dccd560d7eef1ab5c976df2495f5643a20975223f805 55212 xfslibs-dev_4.3.0_amd64.deb c8e540fce739a617fd2ff7b8e4a8e86d0cfb27a25fa50b04c3ac21dc5bc0ae64 134808 xfsprogs-udeb_4.3.0_amd64.udeb d8cfef3519c98be8e999b1537b6eb57b8b7925a2715b7cc3a7c55d5e642e3a01 727106 xfsprogs_4.3.0_amd64.deb Files: fc99694150b586161106823f245bea72 1763 admin optional xfsprogs_4.3.0.dsc 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userid 1000) id EA802122406; Fri, 27 Nov 2015 10:22:50 -0500 (EST) Date: Fri, 27 Nov 2015 10:22:50 -0500 From: Brian Foster To: "aluno3@poczta.onet.pl" Cc: xfs@oss.sgi.com Subject: Re: Which xfsprogs version to which kernel version Message-ID: <20151127152250.GA64860@bfoster.bfoster> X-ASG-Orig-Subj: Re: Which xfsprogs version to which kernel version References: <5656DD39.8060403@poczta.onet.pl> <20151126132638.53ed9fc7@harpe.intellique.com> <565706BB.3030006@poczta.onet.pl> <20151126135053.GB39911@bfoster.bfoster> <5657190A.1050103@poczta.onet.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <5657190A.1050103@poczta.onet.pl> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448637774 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Nov 26, 2015 at 03:36:58PM +0100, aluno3@poczta.onet.pl wrote: > dmesg when mounting volume which was formated xfsprogs 4.3.0: > > * > root@192.168.176.24:~$ mkfs.xfs -V > mkfs.xfs version 4.3.0 > > root@192.168.176.24:~$ mkfs.xfs -f -m crc=0,finobt=0 /dev/sdc4 > meta-data=/dev/sdc4 isize=256 agcount=4, agsize=474552 blks > = sectsz=512 attr=2, projid32bit=1 > = crc=0 finobt=0, sparse=0 > data = bsize=4096 blocks=1898208, imaxpct=25 > = sunit=0 swidth=0 blks > naming =version 2 bsize=4096 ascii-ci=0 ftype=1 > log =internal log bsize=4096 blocks=2560, version=2 > = sectsz=512 sunit=0 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > > root@192.168.176.24:~$ mount /dev/sdc4 /mnt/sdc4 > mount: wrong fs type, bad option, bad superblock on /dev/sdc4, > missing codepage or helper program, or other error > > In some cases useful info is found in syslog - try > dmesg | tail or so. > > root@192.168.176.24:~$ dmesg > [ 212.984534] XFS (sdc4): bad version > [ 212.984547] ffff88005cccb000: 58 46 53 42 00 00 10 00 00 00 00 00 00 > 1c f6 e0 XFSB............ > [ 212.984550] ffff88005cccb010: 00 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 ................ > [ 212.984551] ffff88005cccb020: 55 9d 20 d9 1c e9 4e a9 a3 ee 8d fd ba > 68 b3 70 U. ...N......h.p > [ 212.984553] ffff88005cccb030: 00 00 00 00 00 10 00 04 00 00 00 00 00 > 00 00 80 ................ > [ 212.984556] XFS (sdc4): Internal error xfs_sb_read_verify at line 730 > of file fs/xfs/xfs_mount.c. Caller 0xffffffff81256c7d > Interesting... have you tried to format without ftype support? It looks like that wasn't introduced until v3.13. E.g., mkfs.xfs -f -m crc=0 -n ftype=0 Brian > [ 212.984560] CPU: 0 PID: 440 Comm: kworker/0:1H Tainted: P O > 3.10.92-oe64-ge331686 #15 > [ 212.984562] Hardware name: System manufacturer System Product > Name/P5WDG2 WS Pro, BIOS 0905 03/06/2008 > [ 212.984567] Workqueue: xfslogd xfs_buf_iodone_work > [ 212.984570] ffffffff81692f75 ffffffff81258c5d ffffffff81256c7d > ffffffff818a39e3 > [ 212.984573] ffff88007aa9ef00 0000000000000016 ffff88007aa8b000 > 0000000000000000 > [ 212.984576] ffff88007ea17800 ffffffff812a32ac ffffffff81256c7d > ffff88007ea11a40 > [ 212.984579] Call Trace: > [ 212.984584] [] ? dump_stack+0xc/0x15 > [ 212.984587] [] ? xfs_corruption_error+0x8d/0x90 > [ 212.984590] [] ? xfs_buf_iodone_work+0x6d/0x90 > [ 212.984595] [] ? xfs_sb_read_verify+0xfc/0x120 > [ 212.984598] [] ? xfs_buf_iodone_work+0x6d/0x90 > [ 212.984600] [] ? xfs_buf_iodone_work+0x6d/0x90 > [ 212.984604] [] ? process_one_work+0x13d/0x3b0 > [ 212.984607] [] ? worker_thread+0x121/0x3d0 > [ 212.984609] [] ? manage_workers.isra.26+0x280/0x280 > [ 212.984613] [] ? kthread+0xc2/0xd0 > [ 212.984616] [] ? sched_clock_cpu+0x30/0x100 > [ 212.984619] [] ? kthread_create_on_node+0x110/0x110 > [ 212.984623] [] ? ret_from_fork+0x58/0x90 > [ 212.984626] [] ? kthread_create_on_node+0x110/0x110 > [ 212.984628] XFS (sdc4): Corruption detected. Unmount and run xfs_repair > [ 212.984634] XFS (sdc4): SB validate failed with error 22. > * > > On 11/26/15 14:50, Brian Foster wrote: > > On Thu, Nov 26, 2015 at 02:18:51PM +0100, aluno3@poczta.onet.pl wrote: > >> Yes I used -f option with 4.X version of xfsprogs but mounting the > >> volume was not possible - before mkfs.xfs finished successfully > >> (mkfs.xfs -f -m crc=0,finobt=0). > >> > > > > You posted the output associated with the crc=1 fs mount failure, what > > happens when you try to mount after formatting with crc=0? > > > > Brian > > > >> Should I stay in 3.1.X family of xfsprogs or is it recommended to use at > >> least 3.2.x version with kernel 3.10? > >> > >> The most I care about xfs_repair. > >> > >> On 11/26/15 13:26, Emmanuel Florac wrote: > >>> Le Thu, 26 Nov 2015 11:21:45 +0100 > >>> "aluno3@poczta.onet.pl" écrivait: > >>> > >>>> mkfs.xfs -m crc=0,finobt=0 > >>>> > >>>> but it does not work with 4.X version of xfsprogs. Call trace also > >>>> occurred so I tried to use 3.2.4 family with crc=0,finobt=0 and volume > >>>> mounted successfully. > >>>> > >>> > >>> Did you use -f? else mkfs.xfs won't do anything as it'll detect an > >>> existing filesystem. > >>> > >> > >> _______________________________________________ > >> xfs mailing list > >> xfs@oss.sgi.com > >> http://oss.sgi.com/mailman/listinfo/xfs > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From kuleshovmail@gmail.com Fri Nov 27 11:55:01 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E15897F3F for ; Fri, 27 Nov 2015 11:55:01 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id CD8FC304039 for ; Fri, 27 Nov 2015 09:55:01 -0800 (PST) X-ASG-Debug-ID: 1448646899-04cb6c5355157c0001-NocioJ Received: from mail-lf0-f41.google.com (mail-lf0-f41.google.com [209.85.215.41]) by cuda.sgi.com with ESMTP id aIPUcEIefxyaiBcw (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Fri, 27 Nov 2015 09:55:00 -0800 (PST) X-Barracuda-Envelope-From: kuleshovmail@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.215.41 Received: by lffu14 with SMTP id u14so137060136lff.1 for ; Fri, 27 Nov 2015 09:54:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=dBHYyYAiwxMmYJHfdRTsM0iD9rzNtT9TkncGtSa9508=; b=dncRLAOGEnuXsuk8xG0GU6zaQpBgedKITJHnmOhvFEu+XHD+hQ45w34UT+P8nIVwo+ XDQZr/3KErH7eOslleguq8SLfTZ85iPdQobai04yhM1gEMkR6WKDeS7JEmpzzSmMI4ch 8wFsd0O73icklO/9HAZ63uZsV8l3H5c/oxnmd6lTBbvjO3qRGHkkhV5cCPYRlqG1lfIu l8gJUVca9TBs4qvaZTa6FAwzmoegu3gXtXAyIxQGsgZXGtdQqW4QAK5wVKVfllUHo20t qklSRydCiFy8y8hH/gm2T5Lk8vn6w7my2OywCljXYR2GFUiE4JDhIZ7J+90sQEbRnYGl 76Dg== X-Received: by 10.112.17.65 with SMTP id m1mr9384953lbd.132.1448646898458; Fri, 27 Nov 2015 09:54:58 -0800 (PST) Received: from localhost.localhost ([5.76.51.200]) by smtp.gmail.com with ESMTPSA id l81sm5001758lfb.40.2015.11.27.09.54.56 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 27 Nov 2015 09:54:57 -0800 (PST) From: Alexander Kuleshov To: Dave Chinner Cc: xfs@oss.sgi.com, linux-kernel@vger.kernel.org, Alexander Kuleshov Subject: [PATCH] xfs/xfs_buf: make xfs_buf_ioend_async() static Date: Fri, 27 Nov 2015 23:52:29 +0600 X-ASG-Orig-Subj: [PATCH] xfs/xfs_buf: make xfs_buf_ioend_async() static Message-Id: <1448646749-18978-1-git-send-email-kuleshovmail@gmail.com> X-Mailer: git-send-email 2.6.2.485.g1bc8fea X-Barracuda-Connect: mail-lf0-f41.google.com[209.85.215.41] X-Barracuda-Start-Time: 1448646899 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24775 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature There are no callers of the xfs_buf_ioend_async() function outside of the fs/xfs/xfs_buf.c. So, let's make it static. Signed-off-by: Alexander Kuleshov --- fs/xfs/xfs_buf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 3243cdf..45a8ea7 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1045,7 +1045,7 @@ xfs_buf_ioend_work( xfs_buf_ioend(bp); } -void +static void xfs_buf_ioend_async( struct xfs_buf *bp) { -- 2.5.0 From imbuee971@inbox.ru Fri Nov 27 13:07:49 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.6 required=5.0 tests=FORGED_YAHOO_RCVD, FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 818FB7F37 for ; Fri, 27 Nov 2015 13:07:49 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 60B0B8F8035 for ; Fri, 27 Nov 2015 11:07:46 -0800 (PST) X-ASG-Debug-ID: 1448651262-04bdf07f082838c0001-NocioJ Received: from bba573079.alshamil.net.ae (bba573079.alshamil.net.ae [86.98.216.55]) by cuda.sgi.com with ESMTP id I5xVDTccn24l9ozF for ; 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boundary=001a11c261ac279d57052590c74d X-Barracuda-Connect: mail-lf0-f44.google.com[209.85.215.44] X-Barracuda-Start-Time: 1448678631 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.01 X-Barracuda-Spam-Status: No, SCORE=0.01 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA_TO_FROM_DOMAIN_MATCH, DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24784 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.01 BSF_SC0_SA_TO_FROM_DOMAIN_MATCH Sender Domain Matches Recipient Domain --001a11c261ac279d57052590c74d Content-Type: text/plain; charset=UTF-8 Hello my dear XFSers, For those of you who don't know, we at ScyllaDB produce a modern NoSQL data store that, at the moment, runs on top of XFS only. We deal exclusively with asynchronous and direct IO, due to our thread-per-core architecture. Due to that, we avoid issuing any operation that will sleep. While debugging an extreme case of bad performance (most likely related to a not-so-great disk), I have found a variety of cases in which XFS blocks. To find those, I have used perf record -e sched:sched_switch -p , and I am attaching the perf report as xfs-sched_switch.log. Please note that this doesn't tell me for how long we block, but as mentioned before, blocking operations outside our control are detrimental to us regardless of the elapsed time. For those who are not acquainted to our internals, please ignore everything in that file but the xfs functions. For the xfs symbols, there are two kinds of events: the ones that are a children of io_submit, where we don't tolerate blocking, and the ones that are children of our helper IO thread, to where we push big operations that we know will block until we can get rid of them all. We care about the former and ignore the latter. Please allow me to ask you a couple of questions about those findings. If we are doing anything wrong, advise on best practices is truly welcome. 1) xfs_buf_lock -> xfs_log_force. I've started wondering what would make xfs_log_force sleep. But then I have noticed that xfs_log_force will only be called when a buffer is marked stale. Most of the times a buffer is marked stale seems to be due to errors. Although that is not my case (more on that), it got me thinking that maybe the right thing to do would be to avoid hitting this case altogether? The file example-stale.txt contains a backtrace of the case where we are being marked as stale. It seems to be happening when we convert the the inode's extents from unwritten to real. Can this case be avoided? I won't pretend I know the intricacies of this, but couldn't we be keeping extents from the very beginning to avoid creating stale buffers? 2) xfs_buf_lock -> down This is one I truly don't understand. What can be causing contention in this lock? We never have two different cores writing to the same buffer, nor should we have the same core doingCAP_FOWNER so. 3) xfs_file_aio_write_checks -> file_update_time -> xfs_vn_update_time You guys seem to have an interface to avoid that, by setting the FMODE_NOCMTIME flag. This is done by issuing the open by handle ioctl, which will set this flag for all regular files. That's great, but that ioctl required CAP_SYS_ADMIN, which is a big no for us, since we run our server as an unprivileged user. I don't understand, however, why such an strict check is needed. If we have full rights on the filesystem, why can't we issue this operation? In my view, CAP_FOWNER should already be enough.I do understand the handles have to be stable and a file can have its ownership changed, in which case the previous owner would keep the handle valid. 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(CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id C6EE5AC002 for ; Sat, 28 Nov 2015 09:02:45 -0800 (PST) X-ASG-Debug-ID: 1448730157-04bdf07f0a297fe0001-NocioJ Received: from gogw0414.mail.goo.jp (gogw0414.mail.goo.jp [153.153.65.15]) by cuda.sgi.com with ESMTP id pjjAz7Vk0P8NFcjE for ; Sat, 28 Nov 2015 09:02:37 -0800 (PST) X-Barracuda-Envelope-From: wonga.loanszza@gmail.com X-Barracuda-Apparent-Source-IP: 153.153.65.15 Received: from ntt.pod01.gv-mta-ucb001 (gv-mta-ucb001.mail.goo.jp [180.8.112.200]) by gogw0414.mail.goo.jp (Postfix) with ESMTP id EA4E5800100; Sun, 29 Nov 2015 02:02:18 +0900 (JST) Received: from gzcstore012.mail.goo.jp ([180.8.112.235]) by ntt.pod01.gv-mta-ucb001 with id n52J1r00154mytg0152Jk6; Sat, 28 Nov 2015 17:02:18 +0000 Date: Sun, 29 Nov 2015 02:02:18 +0900 (JST) From: "3.5% WONGA LOANS BUSINESS AND PERSONAL LOANS OFFER" Reply-To: "3.5% WONGA LOANS BUSINESS AND PERSONAL LOANS OFFER" Message-ID: <135439375.6177420.1448730138084.JavaMail.root@goo.jp> In-Reply-To: <545366783.6164130.1448721178160.JavaMail.root@goo.jp> Subject: 3.5% WONGA LOANS BUSINESS AND PERSONAL LOANS OFFER MIME-Version: 1.0 X-ASG-Orig-Subj: 3.5% WONGA LOANS BUSINESS AND PERSONAL LOANS OFFER Content-Type: multipart/mixed; boundary="----=_Part_6177416_1671826187.1448730138062" X-Originating-IP: [41.150.108.21] X-Barracuda-Connect: gogw0414.mail.goo.jp[153.153.65.15] X-Barracuda-Start-Time: 1448730157 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: -1001.00 X-Barracuda-Spam-Status: No, SCORE=-1001.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 To: undisclosed-recipients:; ------=_Part_6177416_1671826187.1448730138062 Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit To Whom It May Concern, Wonga Loan is proud to introduce our loan service to South Africa citizens, be the first to partake of our initial 3.5% loan promotion. Views attached details on our loans offer and also fill the Loan application form and send it on this email Id:wongaza.loans@fastservice.com We await your reply Amanda Smith Marketing Supervisor Contact Number: +27(0)616437092 Email:wongaza.loans@fastservice.com ------=_Part_6177416_1671826187.1448730138062 Content-Type: application/pdf; name="3.5% WONGA LOANS OFFER-1.pdf" Content-Disposition: attachment; filename="3.5% WONGA LOANS OFFER-1.pdf" Content-Transfer-Encoding: base64 JVBERi0xLjMKJcfsj6IKNSAwIG9iago8PC9MZW5ndGggNiAwIFIvRmlsdGVyIC9GbGF0ZURlY29k ZT4+CnN0cmVhbQp4nLydB1RTSffA56UnhN6LAqKgoJIQqoCgghURexel2UWxFww27KCigoqi2Aso 2LHQVEBAVERUEERAeiekvLw3/+CuuGuS76znxP+33znLenbe3rlz597f3HtnWGXCGsy2MWF1//Xj B//lDOtJDiYLVzNWMezYHBN7th3LZDnD1s7R4a+fl/31s52dA1vys42d5I/+/rn7X//7x0WM6ZYm KxirTJy+f1Ty52x7yXBb2+7vDx/DsB4x2XrSqOEM6+kmHIb1aBM2w3q4zwgTR8YYDxPYUQubP8OW SobnGJOJkm9wfnzDxlHON9i/fqMGQqnRtqz/OhriDb+OdnDk/NfRKGz6Mdr+79Fsezt507f5dXgt 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SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5E8047F37 for ; Sat, 28 Nov 2015 15:20:17 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3391E8F8035 for ; Sat, 28 Nov 2015 13:20:14 -0800 (PST) X-ASG-Debug-ID: 1448745579-04bdf07f0829c060001-NocioJ Received: from control.moteninvest.com ([104.233.64.190]) by cuda.sgi.com with ESMTP id 1xZf4ttJ47LNGyzB for ; Sat, 28 Nov 2015 13:20:10 -0800 (PST) X-Barracuda-Envelope-From: genbear-xfs=oss.sgi.com@moteninvest.com X-Barracuda-Apparent-Source-IP: 104.233.64.190 Received: by control.moteninvest.com id hb8d8k0001gi for ; Sat, 28 Nov 2015 16:08:49 -0500 (envelope-from ) MIME-Version: 1.0 From: "Gen Bear" To: xfs@oss.sgi.com Subject: Protect yourself from Radicals! Date: Sat, 28 Nov 2015 16:08:49 -0500 X-ASG-Orig-Subj: Protect yourself from Radicals! Content-Type: text/plain; List-unsubscribe: http://moteninvest.com/5pFXWBmsEh0ce80MKJ63 Message-ID: <0.0.0.B.1D12A20FA6B5676.9C5ED5@control.moteninvest.com> X-Barracuda-Connect: UNKNOWN[104.233.64.190] X-Barracuda-Start-Time: 1448745610 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.10 X-Barracuda-Spam-Status: No, SCORE=2.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MV0702, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24803 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 1.50 BSF_SC0_MV0702 Custom rule MV0702 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 . The NRA knows that the best deterent to violence is an armed populace. . And they are right! But make sure you have ALL the tools you need. . Police and military have the advantage from the general public with their equipment. . Make sure you do to! . The will give you the advantage over any aggressors. . Keep a watchful eye with 700 lumens that can not only help you see but actually BLIND an attacker. . Hurry and get 75% off. . We want you to be prepared. We are doing our part with this special offer. . http://moteninvest.com/27Qgc2DgFkG3lfW6pGuK/Tactical/Light . . . . . I don't want to get this offer anymore: http://moteninvest.com/5pFXWBmsEh0ce80MKJ63 . . . 2317 Patton Lane Raleigh, NC 27609 From genbear-xfs=oss.sgi.com@moteninvest.com Sat Nov 28 15:20:24 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4A99C29DF9 for ; Sat, 28 Nov 2015 15:20:24 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1D2398F8035 for ; Sat, 28 Nov 2015 13:20:24 -0800 (PST) X-ASG-Debug-ID: 1448745579-04bdf07f0829c060002-NocioJ Received: from control.moteninvest.com ([104.233.64.190]) by cuda.sgi.com with ESMTP id Cv0nn8fvUy0sQywc for ; Sat, 28 Nov 2015 13:20:13 -0800 (PST) X-Barracuda-Envelope-From: genbear-xfs=oss.sgi.com@moteninvest.com X-Barracuda-Apparent-Source-IP: 104.233.64.190 Received: by control.moteninvest.com id hb8d9e0001g9 for ; Sat, 28 Nov 2015 16:12:05 -0500 (envelope-from ) MIME-Version: 1.0 From: "Gen Bear" To: xfs@oss.sgi.com Subject: Protect yourself from Radicals! Date: Sat, 28 Nov 2015 16:12:05 -0500 X-ASG-Orig-Subj: Protect yourself from Radicals! Content-Type: text/plain; List-unsubscribe: http://moteninvest.com/5pFXWBmsEh0ce80MKJ63 Message-ID: <0.0.0.43.1D12A216F004C3A.17E65CB@control.moteninvest.com> X-Barracuda-Connect: UNKNOWN[104.233.64.190] X-Barracuda-Start-Time: 1448745611 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.10 X-Barracuda-Spam-Status: No, SCORE=2.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MV0702, BSF_SC5_MJ1963, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24803 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 1.50 BSF_SC0_MV0702 Custom rule MV0702 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 . The NRA knows that the best deterent to violence is an armed populace. . And they are right! But make sure you have ALL the tools you need. . Police and military have the advantage from the general public with their equipment. . Make sure you do to! . The will give you the advantage over any aggressors. . Keep a watchful eye with 700 lumens that can not only help you see but actually BLIND an attacker. . Hurry and get 75% off. . We want you to be prepared. We are doing our part with this special offer. . http://moteninvest.com/27Qgc2DgFkG3lfW6pGuK/Tactical/Light . . . . . I don't want to get this offer anymore: http://moteninvest.com/5pFXWBmsEh0ce80MKJ63 . . . 2317 Patton Lane Raleigh, NC 27609 From lvml@5t9.de Sun Nov 29 15:40:45 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id AA8777F37 for ; Sun, 29 Nov 2015 15:40:45 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8F8328F8033 for ; Sun, 29 Nov 2015 13:40:44 -0800 (PST) X-ASG-Debug-ID: 1448833240-04cbb0605b2ade50001-NocioJ Received: from app1a.xlhost.de (mailout173.xlhost.de [84.200.252.173]) by cuda.sgi.com with ESMTP id JRXC4pFiJEzDzMNU for ; Sun, 29 Nov 2015 13:40:41 -0800 (PST) X-Barracuda-Envelope-From: lvml@5t9.de X-Barracuda-Apparent-Source-IP: 84.200.252.173 Received: from [10.223.0.1] (55d41b70.access.ecotel.net [85.212.27.112]) (Authenticated sender: lkv@5t9.de) by app1a.xlhost.de (Postfix) with ESMTPSA id 5DB29101535B; Sun, 29 Nov 2015 22:40:38 +0100 (CET) Message-ID: <565B70F9.8060707@5t9.de> Date: Sun, 29 Nov 2015 22:41:13 +0100 From: Lutz Vieweg User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: Does XFS support cgroup writeback limiting? References: <5652F311.7000406@5t9.de> <20151123202619.GE26718@dastard> <56538E6A.6030203@5t9.de> <20151123232052.GI26718@dastard> <5655FDDA.9050502@5t9.de> <20151125213500.GK26718@dastard> X-ASG-Orig-Subj: Re: Does XFS support cgroup writeback limiting? In-Reply-To: <20151125213500.GK26718@dastard> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-Virus-Scanned: clamav-milter 0.98.1 at app1a.xlhost.de X-Virus-Status: Clean X-Barracuda-Connect: mailout173.xlhost.de[84.200.252.173] X-Barracuda-Start-Time: 1448833241 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24827 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 11/25/2015 10:35 PM, Dave Chinner wrote: >> 2) Create 3 different XFS filesystem instances on the block >> device, one for access by only the "good" processes, >> on for access by only the "evil" processes, one for >> shared access by at least two "good" and two "evil" >> processes. > > Why do you need multiple filesystems? The writeback throttling is > designed to work within a single filesystem... Hmm. Previously, I thought that the limiting of buffered writes was realized by keeping track of the owners of dirty pages, and that filesystem support was just required to make sure that writing via a filesystem did not "anonymize" the dirty data. From what I had read in blkio-controller.txt it seemed evident that limitations would be accounted for "per block device", not "per filesystem", and options like > echo ": " > /cgrp/blkio.throttle.read_bps_device document how to configure limits per block device. Now after reading through the new Writeback section of blkio-controller.txt again I am somewhat confused - the text states > writeback operates on inode basis and if that means inodes as in "file system inodes", this would indeed mean limits would be enforced "per filesystem" - and yet there are no options documented to specify limits for any specific filesystem. Does this mean some process writing to a block device (not via filesystem) without "O_DIRECT" will dirty buffer pages, but those will not be limited (as they are neither synchronous nor via-filesystem writes)? That would mean VMs sharing some (physical or abstract) block device could not really be isolated regarding their asynchronous write I/O... > Metadata IO not throttled - it is owned by the filesystem and hence > root cgroup. Ouch. That kind of defeats the purpose of limiting evil processes' ability to DOS other processes. Wouldn't it be possible to assign some arbitrary cost to meta-data operations - like "account one page write for each meta-data change to the originating process of that change"? While certainly not allowing for limiting to byte-precise limits of write bandwidth, this would regain the ability to defend against DOS situations, and for well-behaved processes, the "cost" accounted for their not-so-frequent meta-data operations would probably not really hurt their writing speed. >> The test is successful if all "good processes" terminate successfully >> after a time not longer than it would take to write 10 times X MB to the >> rate-limited block device. > > if we are rate limiting to 1MB/s, then a 10s test is not long enough > to reach steady state. Indeed, it's going to take at least 30s worth > of IO to guarantee that we getting writeback occurring for low > bandwidth streams.... Sure, the "X/100 MB per second" throttle to the scratch device was meant to result in a minimal test time of > 100s. > i.e. the test needs to run for a period of time and then measure > the throughput of each stream, comparing it against the expected > throughput for the stream, rather than trying to write a fixed > bandwidth.... The reason why I thought it to be a good idea to have the "good" processes use only a limited write rate was to make sure that the actual write activity of those processes is spread out over enough time to make sure that they could, after all, feel some "pressure back" from the operating system that is applied only after the "bad" processes have filled up all RAM dedicated to dirty buffer cache. Assume the test instance has lots of memory and would be willing to spend many Gigabytes of RAM for dirty buffer caches. Chances are that in such a situation the "good" processes might be done writing their limited amount of data almost instantaneously, because the data just went to RAM. (I understand that if one used the absolute "blkio.throttle.write*" options pressure back could apply before the dirty buffer cache was maxed out, but in real-world scenarios people will almost always use the relative "blkio.weight" based limiting, after all, you usually don't want to throttle processes if there is plenty of bandwidth left no other process wants at the same time.) Regards, Lutz Vieweg From aluno3@poczta.onet.pl Mon Nov 30 02:38:05 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0314D7F37 for ; Mon, 30 Nov 2015 02:38:05 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id D896830404E for ; Mon, 30 Nov 2015 00:38:01 -0800 (PST) X-ASG-Debug-ID: 1448872674-04cb6c535458a00001-NocioJ Received: from smtpo65.poczta.onet.pl (smtpo33.poczta.onet.pl [213.180.142.164]) by cuda.sgi.com with ESMTP id gAZ0lT2OcpKPTqP5 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 00:37:55 -0800 (PST) X-Barracuda-Envelope-From: aluno3@poczta.onet.pl X-Barracuda-Apparent-Source-IP: 213.180.142.164 Received: from [192.168.176.22] (host8514118246.static.open-e.3s.pl [85.14.118.246]) (Authenticated sender: aluno3@poczta.onet.pl) by smtp.poczta.onet.pl (Onet) with ESMTPA id 3p8Kgy35V9zT2Rmvs; Mon, 30 Nov 2015 09:37:49 +0100 (CET) Subject: Re: Which xfsprogs version to which kernel version To: Brian Foster X-ASG-Orig-Subj: Re: Which xfsprogs version to which kernel version References: <5656DD39.8060403@poczta.onet.pl> <20151126132638.53ed9fc7@harpe.intellique.com> <565706BB.3030006@poczta.onet.pl> <20151126135053.GB39911@bfoster.bfoster> <5657190A.1050103@poczta.onet.pl> <20151127152250.GA64860@bfoster.bfoster> Cc: xfs@oss.sgi.com From: "aluno3@poczta.onet.pl" X-Enigmail-Draft-Status: N1110 Message-ID: <565C0ADA.908@poczta.onet.pl> Date: Mon, 30 Nov 2015 09:37:46 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <20151127152250.GA64860@bfoster.bfoster> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: smtpo33.poczta.onet.pl[213.180.142.164] X-Barracuda-Start-Time: 1448872675 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24843 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 11/27/15 16:22, Brian Foster wrote: > On Thu, Nov 26, 2015 at 03:36:58PM +0100, aluno3@poczta.onet.pl wrote: >> dmesg when mounting volume which was formated xfsprogs 4.3.0: >> >> * >> root@192.168.176.24:~$ mkfs.xfs -V >> mkfs.xfs version 4.3.0 >> >> root@192.168.176.24:~$ mkfs.xfs -f -m crc=0,finobt=0 /dev/sdc4 >> meta-data=/dev/sdc4 isize=256 agcount=4, agsize=474552 blks >> = sectsz=512 attr=2, projid32bit=1 >> = crc=0 finobt=0, sparse=0 >> data = bsize=4096 blocks=1898208, imaxpct=25 >> = sunit=0 swidth=0 blks >> naming =version 2 bsize=4096 ascii-ci=0 ftype=1 >> log =internal log bsize=4096 blocks=2560, version=2 >> = sectsz=512 sunit=0 blks, lazy-count=1 >> realtime =none extsz=4096 blocks=0, rtextents=0 >> >> root@192.168.176.24:~$ mount /dev/sdc4 /mnt/sdc4 >> mount: wrong fs type, bad option, bad superblock on /dev/sdc4, >> missing codepage or helper program, or other error >> >> In some cases useful info is found in syslog - try >> dmesg | tail or so. >> >> root@192.168.176.24:~$ dmesg >> [ 212.984534] XFS (sdc4): bad version >> [ 212.984547] ffff88005cccb000: 58 46 53 42 00 00 10 00 00 00 00 00 00 >> 1c f6 e0 XFSB............ >> [ 212.984550] ffff88005cccb010: 00 00 00 00 00 00 00 00 00 00 00 00 00 >> 00 00 00 ................ >> [ 212.984551] ffff88005cccb020: 55 9d 20 d9 1c e9 4e a9 a3 ee 8d fd ba >> 68 b3 70 U. ...N......h.p >> [ 212.984553] ffff88005cccb030: 00 00 00 00 00 10 00 04 00 00 00 00 00 >> 00 00 80 ................ >> [ 212.984556] XFS (sdc4): Internal error xfs_sb_read_verify at line 730 >> of file fs/xfs/xfs_mount.c. Caller 0xffffffff81256c7d >> > > Interesting... have you tried to format without ftype support? It looks > like that wasn't introduced until v3.13. E.g., > > mkfs.xfs -f -m crc=0 -n ftype=0 > With ftype=0 and crc=0 options, mounting the volume is possible. root:~$ mkfs.xfs -f -m crc=0 -n ftype=0 /dev/sdc meta-data=/dev/sdc isize=256 agcount=4, agsize=30524162 blks = sectsz=512 attr=2, projid32bit=1 = crc=0 finobt=0, sparse=0 data = bsize=4096 blocks=122096646, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=0 log =internal log bsize=4096 blocks=59617, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 root:~$ mount /dev/sdc /mnt/sdc root:~$ dmesg [ 1761.805159] sdc: unknown partition table [ 1768.928019] XFS (sdc): Mounting Filesystem [ 1768.987660] XFS (sdc): Ending clean mount so is it safe to use xfsprogs 4.3.0 with crc=0 and ftype=0 with kernel 3.10? > Brian > >> [ 212.984560] CPU: 0 PID: 440 Comm: kworker/0:1H Tainted: P O >> 3.10.92-oe64-ge331686 #15 >> [ 212.984562] Hardware name: System manufacturer System Product >> Name/P5WDG2 WS Pro, BIOS 0905 03/06/2008 >> [ 212.984567] Workqueue: xfslogd xfs_buf_iodone_work >> [ 212.984570] ffffffff81692f75 ffffffff81258c5d ffffffff81256c7d >> ffffffff818a39e3 >> [ 212.984573] ffff88007aa9ef00 0000000000000016 ffff88007aa8b000 >> 0000000000000000 >> [ 212.984576] ffff88007ea17800 ffffffff812a32ac ffffffff81256c7d >> ffff88007ea11a40 >> [ 212.984579] Call Trace: >> [ 212.984584] [] ? dump_stack+0xc/0x15 >> [ 212.984587] [] ? xfs_corruption_error+0x8d/0x90 >> [ 212.984590] [] ? xfs_buf_iodone_work+0x6d/0x90 >> [ 212.984595] [] ? xfs_sb_read_verify+0xfc/0x120 >> [ 212.984598] [] ? xfs_buf_iodone_work+0x6d/0x90 >> [ 212.984600] [] ? xfs_buf_iodone_work+0x6d/0x90 >> [ 212.984604] [] ? process_one_work+0x13d/0x3b0 >> [ 212.984607] [] ? worker_thread+0x121/0x3d0 >> [ 212.984609] [] ? manage_workers.isra.26+0x280/0x280 >> [ 212.984613] [] ? kthread+0xc2/0xd0 >> [ 212.984616] [] ? sched_clock_cpu+0x30/0x100 >> [ 212.984619] [] ? kthread_create_on_node+0x110/0x110 >> [ 212.984623] [] ? ret_from_fork+0x58/0x90 >> [ 212.984626] [] ? kthread_create_on_node+0x110/0x110 >> [ 212.984628] XFS (sdc4): Corruption detected. Unmount and run xfs_repair >> [ 212.984634] XFS (sdc4): SB validate failed with error 22. >> * >> >> On 11/26/15 14:50, Brian Foster wrote: >>> On Thu, Nov 26, 2015 at 02:18:51PM +0100, aluno3@poczta.onet.pl wrote: >>>> Yes I used -f option with 4.X version of xfsprogs but mounting the >>>> volume was not possible - before mkfs.xfs finished successfully >>>> (mkfs.xfs -f -m crc=0,finobt=0). >>>> >>> >>> You posted the output associated with the crc=1 fs mount failure, what >>> happens when you try to mount after formatting with crc=0? >>> >>> Brian >>> >>>> Should I stay in 3.1.X family of xfsprogs or is it recommended to use at >>>> least 3.2.x version with kernel 3.10? >>>> >>>> The most I care about xfs_repair. >>>> >>>> On 11/26/15 13:26, Emmanuel Florac wrote: >>>>> Le Thu, 26 Nov 2015 11:21:45 +0100 >>>>> "aluno3@poczta.onet.pl" écrivait: >>>>> >>>>>> mkfs.xfs -m crc=0,finobt=0 >>>>>> >>>>>> but it does not work with 4.X version of xfsprogs. Call trace also >>>>>> occurred so I tried to use 3.2.4 family with crc=0,finobt=0 and volume >>>>>> mounted successfully. >>>>>> >>>>> >>>>> Did you use -f? else mkfs.xfs won't do anything as it'll detect an >>>>> existing filesystem. >>>>> >>>> >>>> _______________________________________________ >>>> xfs mailing list >>>> xfs@oss.sgi.com >>>> http://oss.sgi.com/mailman/listinfo/xfs >> >> _______________________________________________ >> xfs mailing list >> xfs@oss.sgi.com >> http://oss.sgi.com/mailman/listinfo/xfs From cmaiolino@redhat.com Mon Nov 30 03:51:14 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7EEF07F37 for ; Mon, 30 Nov 2015 03:51:14 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 53113304048 for ; Mon, 30 Nov 2015 01:51:11 -0800 (PST) X-ASG-Debug-ID: 1448877069-04bdf07f092c86d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ijd8R69Ef03HWPx2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 01:51:09 -0800 (PST) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 36BF2C0D222C; Mon, 30 Nov 2015 09:51:09 +0000 (UTC) Received: from redhat.com (vpn-62-148.rdu2.redhat.com [10.10.62.148]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAU9p4j6024208 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 30 Nov 2015 04:51:07 -0500 Date: Mon, 30 Nov 2015 10:51:04 +0100 From: Carlos Maiolino To: "aluno3@poczta.onet.pl" Cc: Brian Foster , xfs@oss.sgi.com Subject: Re: Which xfsprogs version to which kernel version Message-ID: <20151130095104.GA25920@redhat.com> X-ASG-Orig-Subj: Re: Which xfsprogs version to which kernel version Mail-Followup-To: "aluno3@poczta.onet.pl" , Brian Foster , xfs@oss.sgi.com References: <5656DD39.8060403@poczta.onet.pl> <20151126132638.53ed9fc7@harpe.intellique.com> <565706BB.3030006@poczta.onet.pl> <20151126135053.GB39911@bfoster.bfoster> <5657190A.1050103@poczta.onet.pl> <20151127152250.GA64860@bfoster.bfoster> <565C0ADA.908@poczta.onet.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <565C0ADA.908@poczta.onet.pl> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448877069 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 30, 2015 at 09:37:46AM +0100, aluno3@poczta.onet.pl wrote: > On 11/27/15 16:22, Brian Foster wrote: > > On Thu, Nov 26, 2015 at 03:36:58PM +0100, aluno3@poczta.onet.pl wrote: > >> dmesg when mounting volume which was formated xfsprogs 4.3.0: > >> > >> * > >> root@192.168.176.24:~$ mkfs.xfs -V > >> mkfs.xfs version 4.3.0 > >> > >> root@192.168.176.24:~$ mkfs.xfs -f -m crc=0,finobt=0 /dev/sdc4 > >> meta-data=/dev/sdc4 isize=256 agcount=4, agsize=474552 blks > >> = sectsz=512 attr=2, projid32bit=1 > >> = crc=0 finobt=0, sparse=0 > >> data = bsize=4096 blocks=1898208, imaxpct=25 > >> = sunit=0 swidth=0 blks > >> naming =version 2 bsize=4096 ascii-ci=0 ftype=1 > >> log =internal log bsize=4096 blocks=2560, version=2 > >> = sectsz=512 sunit=0 blks, lazy-count=1 > >> realtime =none extsz=4096 blocks=0, rtextents=0 > >> > >> root@192.168.176.24:~$ mount /dev/sdc4 /mnt/sdc4 > >> mount: wrong fs type, bad option, bad superblock on /dev/sdc4, > >> missing codepage or helper program, or other error > >> > >> In some cases useful info is found in syslog - try > >> dmesg | tail or so. > >> > >> root@192.168.176.24:~$ dmesg > >> [ 212.984534] XFS (sdc4): bad version > >> [ 212.984547] ffff88005cccb000: 58 46 53 42 00 00 10 00 00 00 00 00 00 > >> 1c f6 e0 XFSB............ > >> [ 212.984550] ffff88005cccb010: 00 00 00 00 00 00 00 00 00 00 00 00 00 > >> 00 00 00 ................ > >> [ 212.984551] ffff88005cccb020: 55 9d 20 d9 1c e9 4e a9 a3 ee 8d fd ba > >> 68 b3 70 U. ...N......h.p > >> [ 212.984553] ffff88005cccb030: 00 00 00 00 00 10 00 04 00 00 00 00 00 > >> 00 00 80 ................ > >> [ 212.984556] XFS (sdc4): Internal error xfs_sb_read_verify at line 730 > >> of file fs/xfs/xfs_mount.c. Caller 0xffffffff81256c7d > >> > > > > Interesting... have you tried to format without ftype support? It looks > > like that wasn't introduced until v3.13. E.g., > > > > mkfs.xfs -f -m crc=0 -n ftype=0 > > > > With ftype=0 and crc=0 options, mounting the volume is possible. > > > root:~$ mkfs.xfs -f -m crc=0 -n ftype=0 /dev/sdc > meta-data=/dev/sdc isize=256 agcount=4, agsize=30524162 > blks > = sectsz=512 attr=2, projid32bit=1 > = crc=0 finobt=0, sparse=0 > data = bsize=4096 blocks=122096646, imaxpct=25 > = sunit=0 swidth=0 blks > naming =version 2 bsize=4096 ascii-ci=0 ftype=0 > log =internal log bsize=4096 blocks=59617, version=2 > = sectsz=512 sunit=0 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > root:~$ mount /dev/sdc /mnt/sdc > root:~$ dmesg > [ 1761.805159] sdc: unknown partition table > [ 1768.928019] XFS (sdc): Mounting Filesystem > [ 1768.987660] XFS (sdc): Ending clean mount > > so is it safe to use xfsprogs 4.3.0 with crc=0 and ftype=0 with kernel > 3.10? > Hi, it's safe once you're disabling the unsupported filesystem formats for the kernel you're using. > > Brian > > > >> [ 212.984560] CPU: 0 PID: 440 Comm: kworker/0:1H Tainted: P O > >> 3.10.92-oe64-ge331686 #15 > >> [ 212.984562] Hardware name: System manufacturer System Product > >> Name/P5WDG2 WS Pro, BIOS 0905 03/06/2008 > >> [ 212.984567] Workqueue: xfslogd xfs_buf_iodone_work > >> [ 212.984570] ffffffff81692f75 ffffffff81258c5d ffffffff81256c7d > >> ffffffff818a39e3 > >> [ 212.984573] ffff88007aa9ef00 0000000000000016 ffff88007aa8b000 > >> 0000000000000000 > >> [ 212.984576] ffff88007ea17800 ffffffff812a32ac ffffffff81256c7d > >> ffff88007ea11a40 > >> [ 212.984579] Call Trace: > >> [ 212.984584] [] ? dump_stack+0xc/0x15 > >> [ 212.984587] [] ? xfs_corruption_error+0x8d/0x90 > >> [ 212.984590] [] ? xfs_buf_iodone_work+0x6d/0x90 > >> [ 212.984595] [] ? xfs_sb_read_verify+0xfc/0x120 > >> [ 212.984598] [] ? xfs_buf_iodone_work+0x6d/0x90 > >> [ 212.984600] [] ? xfs_buf_iodone_work+0x6d/0x90 > >> [ 212.984604] [] ? process_one_work+0x13d/0x3b0 > >> [ 212.984607] [] ? worker_thread+0x121/0x3d0 > >> [ 212.984609] [] ? manage_workers.isra.26+0x280/0x280 > >> [ 212.984613] [] ? kthread+0xc2/0xd0 > >> [ 212.984616] [] ? sched_clock_cpu+0x30/0x100 > >> [ 212.984619] [] ? kthread_create_on_node+0x110/0x110 > >> [ 212.984623] [] ? ret_from_fork+0x58/0x90 > >> [ 212.984626] [] ? kthread_create_on_node+0x110/0x110 > >> [ 212.984628] XFS (sdc4): Corruption detected. Unmount and run xfs_repair > >> [ 212.984634] XFS (sdc4): SB validate failed with error 22. > >> * > >> > >> On 11/26/15 14:50, Brian Foster wrote: > >>> On Thu, Nov 26, 2015 at 02:18:51PM +0100, aluno3@poczta.onet.pl wrote: > >>>> Yes I used -f option with 4.X version of xfsprogs but mounting the > >>>> volume was not possible - before mkfs.xfs finished successfully > >>>> (mkfs.xfs -f -m crc=0,finobt=0). > >>>> > >>> > >>> You posted the output associated with the crc=1 fs mount failure, what > >>> happens when you try to mount after formatting with crc=0? > >>> > >>> Brian > >>> > >>>> Should I stay in 3.1.X family of xfsprogs or is it recommended to use at > >>>> least 3.2.x version with kernel 3.10? > >>>> > >>>> The most I care about xfs_repair. > >>>> > >>>> On 11/26/15 13:26, Emmanuel Florac wrote: > >>>>> Le Thu, 26 Nov 2015 11:21:45 +0100 > >>>>> "aluno3@poczta.onet.pl" écrivait: > >>>>> > >>>>>> mkfs.xfs -m crc=0,finobt=0 > >>>>>> > >>>>>> but it does not work with 4.X version of xfsprogs. Call trace also > >>>>>> occurred so I tried to use 3.2.4 family with crc=0,finobt=0 and volume > >>>>>> mounted successfully. > >>>>>> > >>>>> > >>>>> Did you use -f? else mkfs.xfs won't do anything as it'll detect an > >>>>> existing filesystem. > >>>>> > >>>> > >>>> _______________________________________________ > >>>> xfs mailing list > >>>> xfs@oss.sgi.com > >>>> http://oss.sgi.com/mailman/listinfo/xfs > >> > >> _______________________________________________ > >> xfs mailing list > >> xfs@oss.sgi.com > >> http://oss.sgi.com/mailman/listinfo/xfs > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs -- Carlos From bfoster@redhat.com Mon Nov 30 07:22:23 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 979AD7F37 for ; Mon, 30 Nov 2015 07:22:23 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 256A9AC003 for ; Mon, 30 Nov 2015 05:22:22 -0800 (PST) X-ASG-Debug-ID: 1448889740-04cbb0605b2c5e00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 1u9AtvVhu7Z3Bzdp (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 05:22:21 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 7186B42E5B7 for ; Mon, 30 Nov 2015 13:22:20 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-132.bos.redhat.com [10.18.41.132]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAUDMK0M018624; Mon, 30 Nov 2015 08:22:20 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id A61CE12013B; Mon, 30 Nov 2015 08:22:19 -0500 (EST) Date: Mon, 30 Nov 2015 08:22:19 -0500 From: Brian Foster To: Carlos Maiolino Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs_io: implement 'inode' command V5 Message-ID: <20151130132217.GA24765@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs_io: implement 'inode' command V5 References: <1448552795-8794-1-git-send-email-cmaiolino@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1448552795-8794-1-git-send-email-cmaiolino@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448889741 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Nov 26, 2015 at 04:46:35PM +0100, Carlos Maiolino wrote: > Implements a new xfs_io command, named 'inode', which is supposed to be > used to query information about inode's existence and its physical size > in the filesystem. > > Supported options: > > Default: -- Return true(1) or false(0) if any inode greater than > 32bits has been found in the filesystem > -v -- verbose mode > Display the number and the physical size (in bits) > of the largest inode in the filesystem > [num] -- Return true(1) or false(0) if the inode [num] is in use > -n [num] -- Return the next valid inode after [num] > > No manpage sent because there were changes in the supported options and its > descriptions. > I'll send the manpage after the options and descriptions are reviewed. > > - Changelog > > V3: > - Merge all 3 patches from the V2 together in a single patch > - Rework of '-n [num]' and 'num' only arguments algorithm > - Argument -n now relies on bulkreq.count to check for next inodes, not > on bstat.bs_ino anymore. > - for loop in ret_lsize or ret_largest case, now relies on count being 0 > to break the loop > > V4: > - Refactor inode_f function to reduce its size and easier logic > - Implement error handlers for invalid command combination (hopefully > all invalid combinations). > - use a single xfs_inogrp array for keep track of inodes > - Fix missing newline in inode_help() > - Rewrite help message in inode_help() > - Fix indentation > > V5: > - Reduce the amount of options > - remove igrp_rec variable, and use igroup[lastgrp] directly to get > information from the last inode groups returned by ioctl > > Signed-off-by: Carlos Maiolino > --- > io/open.c | 143 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 143 insertions(+) > > diff --git a/io/open.c b/io/open.c > index ac5a5e0..1e38ea8 100644 > --- a/io/open.c > +++ b/io/open.c > @@ -20,6 +20,7 @@ > #include "input.h" > #include "init.h" > #include "io.h" > +#include "libxfs.h" > > #ifndef __O_TMPFILE > #if defined __alpha__ > @@ -44,6 +45,7 @@ static cmdinfo_t statfs_cmd; > static cmdinfo_t chproj_cmd; > static cmdinfo_t lsproj_cmd; > static cmdinfo_t extsize_cmd; > +static cmdinfo_t inode_cmd; > static prid_t prid; > static long extsize; > > @@ -750,6 +752,136 @@ statfs_f( > return 0; > } > > +static void > +inode_help(void) > +{ > + printf(_( > +"\n" > +"Query physical information about the inode" > +"\n" > +" Default: -- Return true(1) or false(0) if any inode greater than\n" > +" 32bits has been found in the filesystem\n" > +" -v -- verbose mode\n" > +" Display the number and the physical size (in bits)\n" > +" of the largest inode in the filesystem\n" > +"[num] -- Return true(1) or false(0) if the inode [num] is in use\n" > +" -n [num] -- Return the next valid inode after [num]\n" > +"\n")); > +} > + > +static int > +inode_f( > + int argc, > + char **argv) > +{ > + __s32 count = 0; > + __s32 lastgrp = 0; > + __u64 last = 0; > + __u64 lastino = 0; > + __u64 userino = 0; > + char *p; > + int c; > + int verbose = 0; > + int ret_next = 0; > + int cmd = 0; > + struct xfs_inogrp igroup[1024]; > + struct xfs_fsop_bulkreq bulkreq; > + struct xfs_bstat bstat; > + > + while ((c = getopt(argc, argv, "nv")) != EOF) { I think we want "n:v" here since -n expects an argument, even if we don't process the arg here. > + switch (c) { > + case 'v': > + verbose = 1; > + break; > + case 'n': > + ret_next = 1; > + break; > + default: > + return command_usage(&inode_cmd); > + } > + } > + > + if (ret_next && verbose) > + return command_usage(&inode_cmd); > + Why is this not supported? Hmm, I see that -n returns an inode number and otherwise we print 0/1 or : with -v. Perhaps this would be easier if the command semantics/output were more consistent. E.g., "inode": print 0/1 based on largest inode size "inode -v": print : of largest inode "inode ": print if inode exists "inode -v ": print : if inode exists "inode -n ": print if next inode exists "inode -nv ": print : if next inode exists In other words, the default behavior is to identify the 32-bit/64-bit state of the fs. If an inode is provided, we print the inode number if the inode exists. The -n flags alters this behavior to find the next inode. The -v flag alters the previous two situations to also print the inode size. > + if (optind < argc) { A comment above this check to explain what it means (i.e., user passed an inode number) would be nice. > + if (verbose) > + return command_usage(&inode_cmd); Also, why is this not supported (see above)? > + > + if (ret_next) { > + cmd = XFS_IOC_FSBULKSTAT; > + } else { > + if (argc > 2) > + return command_usage(&inode_cmd); > + else > + cmd = XFS_IOC_FSBULKSTAT_SINGLE; > + } > + > + userino = strtoull(argv[optind], &p, 10); > + if ((*p != '\0')) { > + printf(_("[num] must be a numeric value\n")); > + exitcode = 1; > + return 0; > + } > + > + bulkreq.lastip = &userino; > + bulkreq.icount = 1; > + bulkreq.ubuffer = &bstat; > + bulkreq.ocount = &count; > + > + if (xfsctl(file->name, file->fd, cmd, &bulkreq)) { > + if (errno == EINVAL) { > + if (!ret_next) > + printf("0\n"); > + } else { > + perror("xfsctl"); > + } > + exitcode = 1; > + return 0; > + } > + > + if (ret_next) { > + printf("%llu\n", bstat.bs_ino); > + return 0; > + } else { > + /* Inode number used*/ > + printf("1\n"); > + return 0; > + } The return 0 can go after the if/else. > + } > + /* * The user has not provided an inode number. Therefore, find * the largest inode in the fs. */ Brian > + bulkreq.lastip = &last; > + bulkreq.icount = 1024; /* User-defined maybe!? */ > + bulkreq.ubuffer = &igroup; > + bulkreq.ocount = &count; > + > + for (;;) { > + if (xfsctl(file->name, file->fd, XFS_IOC_FSINUMBERS, > + &bulkreq)) { > + perror("XFS_IOC_FSINUMBERS"); > + exitcode = 1; > + return 0; > + } > + > + if (count == 0) > + break; > + > + lastgrp = count; > + } > + > + lastgrp--; > + lastino = igroup[lastgrp].xi_startino + > + xfs_highbit64(igroup[lastgrp].xi_allocmask); > + > + if (verbose) > + printf("%llu:%d\n", lastino, > + lastino > XFS_MAXINUMBER_32 ? 64 : 32); > + else > + printf("%d\n", lastino > XFS_MAXINUMBER_32 ? 1 : 0); > + > + return 0; > +} > + > void > open_init(void) > { > @@ -815,6 +947,16 @@ open_init(void) > _("get/set preferred extent size (in bytes) for the open file"); > extsize_cmd.help = extsize_help; > > + inode_cmd.name = "inode"; > + inode_cmd.cfunc = inode_f; > + inode_cmd.args = _("[-n | -v] [num]"); > + inode_cmd.argmin = 0; > + inode_cmd.argmax = 2; > + inode_cmd.flags = CMD_NOMAP_OK; > + inode_cmd.oneline = > + _("Query inode number usage in the filesystem"); > + inode_cmd.help = inode_help; > + > add_command(&open_cmd); > add_command(&stat_cmd); > add_command(&close_cmd); > @@ -822,4 +964,5 @@ open_init(void) > add_command(&chproj_cmd); > add_command(&lsproj_cmd); > add_command(&extsize_cmd); > + add_command(&inode_cmd); > } > -- > 2.4.3 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Nov 30 07:22:26 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 762EC7F50 for ; Mon, 30 Nov 2015 07:22:26 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 23655AC003 for ; Mon, 30 Nov 2015 05:22:26 -0800 (PST) X-ASG-Debug-ID: 1448889745-04bdf07f092cee80001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Oo7YzPUWnwIu44wA (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 05:22:25 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 01A19A81; Mon, 30 Nov 2015 13:22:24 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-132.bos.redhat.com [10.18.41.132]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAUDMOBI031551; Mon, 30 Nov 2015 08:22:24 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 3F04A12013B; Mon, 30 Nov 2015 08:22:24 -0500 (EST) Date: Mon, 30 Nov 2015 08:22:24 -0500 From: Brian Foster To: Alexander Kuleshov Cc: Dave Chinner , linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [PATCH] xfs/xfs_buf: make xfs_buf_ioend_async() static Message-ID: <20151130132223.GB24765@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs/xfs_buf: make xfs_buf_ioend_async() static References: <1448646749-18978-1-git-send-email-kuleshovmail@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1448646749-18978-1-git-send-email-kuleshovmail@gmail.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448889745 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Nov 27, 2015 at 11:52:29PM +0600, Alexander Kuleshov wrote: > There are no callers of the xfs_buf_ioend_async() function outside > of the fs/xfs/xfs_buf.c. So, let's make it static. > > Signed-off-by: Alexander Kuleshov > --- Reviewed-by: Brian Foster > fs/xfs/xfs_buf.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > index 3243cdf..45a8ea7 100644 > --- a/fs/xfs/xfs_buf.c > +++ b/fs/xfs/xfs_buf.c > @@ -1045,7 +1045,7 @@ xfs_buf_ioend_work( > xfs_buf_ioend(bp); > } > > -void > +static void > xfs_buf_ioend_async( > struct xfs_buf *bp) > { > -- > 2.5.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From Vincent.Riera@imgtec.com Mon Nov 30 07:25:43 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 592C97F37 for ; Mon, 30 Nov 2015 07:25:43 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 48E908F8035 for ; Mon, 30 Nov 2015 05:25:40 -0800 (PST) X-ASG-Debug-ID: 1448889937-04cb6c535560480001-NocioJ Received: from mailapp01.imgtec.com (mailapp01.imgtec.com [195.59.15.196]) by cuda.sgi.com with ESMTP id ZzJkRj2sxlx7FkjA for ; Mon, 30 Nov 2015 05:25:37 -0800 (PST) X-Barracuda-Envelope-From: Vincent.Riera@imgtec.com X-Barracuda-Apparent-Source-IP: 195.59.15.196 Received: from HHMAIL01.hh.imgtec.org (unknown [10.100.10.19]) by Websense Email Security Gateway with ESMTPS id 7F1904579DFE0 for ; Mon, 30 Nov 2015 13:25:34 +0000 (GMT) Received: from LEMAIL01.le.imgtec.org (192.168.152.62) by HHMAIL01.hh.imgtec.org (10.100.10.19) with Microsoft SMTP Server (TLS) id 14.3.235.1; Mon, 30 Nov 2015 13:25:36 +0000 Received: from [192.168.154.114] (192.168.154.114) by LEMAIL01.le.imgtec.org (192.168.152.62) with Microsoft SMTP Server (TLS) id 14.3.210.2; Mon, 30 Nov 2015 13:25:35 +0000 Subject: Re: [PATCH xfsprogs] mdrestore: do not do dynamic linking of libtool libraries To: X-ASG-Orig-Subj: Re: [PATCH xfsprogs] mdrestore: do not do dynamic linking of libtool libraries References: <1448449838-47261-1-git-send-email-Vincent.Riera@imgtec.com> From: Vicente Olivert Riera Message-ID: <565C4E4F.4060303@imgtec.com> Date: Mon, 30 Nov 2015 13:25:35 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <1448449838-47261-1-git-send-email-Vincent.Riera@imgtec.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.154.114] X-Barracuda-Connect: mailapp01.imgtec.com[195.59.15.196] X-Barracuda-Start-Time: 1448889937 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24848 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- ping On 25/11/15 11:10, Vicente Olivert Riera wrote: > As explained in commit ece49daeff1a3cad765e106d678c608925c9d768, use > -static-libtool-libs instead of -static to allow fallback to the dynamic > linking for libuuid only. Otherwise the build will fail like this: > > ld: attempted static link of dynamic object `/usr/lib/libuuid.so' > > Signed-off-by: Vicente Olivert Riera > --- > mdrestore/Makefile | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/mdrestore/Makefile b/mdrestore/Makefile > index 5171306..1b34a0e 100644 > --- a/mdrestore/Makefile > +++ b/mdrestore/Makefile > @@ -10,7 +10,7 @@ CFILES = xfs_mdrestore.c > > LLDLIBS = $(LIBXFS) $(LIBRT) $(LIBPTHREAD) $(LIBUUID) > LTDEPENDENCIES = $(LIBXFS) > -LLDFLAGS = -static > +LLDFLAGS = -static-libtool-libs > > default: depend $(LTCOMMAND) > > From fxurdcbbsygrm@qualitynet.net Mon Nov 30 07:53:30 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.2 required=5.0 tests=HK_RANDOM_ENVFROM, HK_RANDOM_FROM,HTML_MESSAGE,SUBJ_ALL_CAPS autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com 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Ymdjb2xvcj0iIzY2MDA2NiI+wqA8L3RkPjx0ZCBiZ2NvbG9yPSIjNjYwMDY2Ij7CoDwvdGQ+PHRk IGJnY29sb3I9IiM2NjAwNjYiPsKgPC90ZD48L3RyPjwvdGJvZHk+PC90YWJsZT48L2Rpdj48L2Rp dj4NCg== ------------716D51D3798C78C9-- From bfoster@redhat.com Mon Nov 30 08:10:13 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8CED57F37 for ; Mon, 30 Nov 2015 08:10:13 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6CE03304051 for ; Mon, 30 Nov 2015 06:10:10 -0800 (PST) X-ASG-Debug-ID: 1448892602-04cb6c535362810001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Gcchz8tHNC5lDCwO (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 06:10:03 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id CBC2A8F27E; Mon, 30 Nov 2015 14:10:02 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-132.bos.redhat.com [10.18.41.132]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAUEA1Yv005127; Mon, 30 Nov 2015 09:10:01 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 1FCC512013B; Mon, 30 Nov 2015 09:10:01 -0500 (EST) Date: Mon, 30 Nov 2015 09:10:01 -0500 From: Brian Foster To: Glauber Costa Cc: xfs@oss.sgi.com, Avi Kivity , david@fromorbit.com Subject: Re: sleeps and waits during io_submit Message-ID: <20151130141000.GC24765@bfoster.bfoster> X-ASG-Orig-Subj: Re: sleeps and waits during io_submit References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448892603 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Nov 27, 2015 at 09:43:50PM -0500, Glauber Costa wrote: > Hello my dear XFSers, >=20 > For those of you who don't know, we at ScyllaDB produce a modern NoSQL > data store that, at the moment, runs on top of XFS only. We deal > exclusively with asynchronous and direct IO, due to our > thread-per-core architecture. Due to that, we avoid issuing any > operation that will sleep. >=20 > While debugging an extreme case of bad performance (most likely > related to a not-so-great disk), I have found a variety of cases in > which XFS blocks. To find those, I have used perf record -e > sched:sched_switch -p , and I am attaching the perf report > as xfs-sched_switch.log. Please note that this doesn't tell me for how > long we block, but as mentioned before, blocking operations outside > our control are detrimental to us regardless of the elapsed time. >=20 > For those who are not acquainted to our internals, please ignore > everything in that file but the xfs functions. For the xfs symbols, > there are two kinds of events: the ones that are a children of > io_submit, where we don't tolerate blocking, and the ones that are > children of our helper IO thread, to where we push big operations that > we know will block until we can get rid of them all. We care about the > former and ignore the latter. >=20 > Please allow me to ask you a couple of questions about those findings. > If we are doing anything wrong, advise on best practices is truly > welcome. >=20 > 1) xfs_buf_lock -> xfs_log_force. >=20 > I've started wondering what would make xfs_log_force sleep. But then I > have noticed that xfs_log_force will only be called when a buffer is > marked stale. Most of the times a buffer is marked stale seems to be > due to errors. Although that is not my case (more on that), it got me > thinking that maybe the right thing to do would be to avoid hitting > this case altogether? >=20 I'm not following where you get the "only if marked stale" part..? It certainly looks like that's one potential purpose for the call, but this is called in a variety of other places as well. E.g., forcing the log via pushing on the ail when it has pinned items is another case. The ail push itself can originate from transaction reservation, etc., when log space is needed. In other words, I'm not sure this is something that's easily controlled from userspace, if at all. Rather, it's a significant part of the wider state machine the fs uses to manage logging. > The file example-stale.txt contains a backtrace of the case where we > are being marked as stale. It seems to be happening when we convert > the the inode's extents from unwritten to real. Can this case be > avoided? I won't pretend I know the intricacies of this, but couldn't > we be keeping extents from the very beginning to avoid creating stale > buffers? >=20 This is down in xfs_fs_evict_inode()->xfs_inactive(), which is generally when an inode is evicted from cache. In this case, it looks like the inode is unlinked (permanently removed), the extents are being removed and a bmap btree block is being invalidated as part of that overall process. I don't think this has anything to do with unwritten extents. > 2) xfs_buf_lock -> down > This is one I truly don't understand. What can be causing contention > in this lock? We never have two different cores writing to the same > buffer, nor should we have the same core doingCAP_FOWNER so. >=20 This is not one single lock. An XFS buffer is the data structure used to modify/log/read-write metadata on-disk and each buffer has its own lock to prevent corruption. Buffer lock contention is possible because the filesystem has bits of "global" metadata that has to be updated via buffers. For example, usually one has multiple allocation groups to maximize parallelism, but we still have per-ag metadata that has to be tracked globally with respect to each AG (e.g., free space trees, inode allocation trees, etc.). Any operation that affects this metadata (e.g., block/inode allocation) has to lock the agi/agf buffers along with any buffers associated with the modified btree leaf/node blocks, etc. One example in your attached perf traces has several threads looking to acquire the AGF, which is a per-AG data structure for tracking free space in the AG. One thread looks like the inode eviction case noted above (freeing blocks), another looks like a file truncate (also freeing blocks), and yet another is a block allocation due to a direct I/O write. Were any of these operations directed to an inode in a separate AG, they would be able to proceed in parallel (but I believe they would still hit the same codepaths as far as perf can tell). > 3) xfs_file_aio_write_checks -> file_update_time -> xfs_vn_update_time >=20 > You guys seem to have an interface to avoid that, by setting the > FMODE_NOCMTIME flag. This is done by issuing the open by handle ioctl, > which will set this flag for all regular files. That's great, but that > ioctl required CAP_SYS_ADMIN, which is a big no for us, since we run > our server as an unprivileged user. I don't understand, however, why > such an strict check is needed. If we have full rights on the > filesystem, why can't we issue this operation? In my view, CAP_FOWNER > should already be enough.I do understand the handles have to be stable > and a file can have its ownership changed, in which case the previous > owner would keep the handle valid. Is that the reason you went with > the most restrictive capability ? I'm not familiar enough with the open-by-handle stuff to comment on the permission constraints. Perhaps Dave or others can comment further on this bit... Brian > # To display the perf.data header info, please use --header/--header-only= options. > # > # > # Total Lost Samples: 0 > # > # Samples: 2K of event 'sched:sched_switch' > # Event count (approx.): 2669 > # > # Overhead Command Shared Object Symbol =20 > # ........ ....... ................. .............. > # > 100.00% scylla [kernel.kallsyms] [k] __schedule > | > ---__schedule > | =20 > |--96.18%-- schedule > | | =20 > | |--56.14%-- schedule_user > | | | =20 > | | |--53.30%-- int_careful > | | | | =20 > | | | |--45.05%-- 0x7f4ade6f74= ed > | | | | reactor_backe= nd_epoll::make_reactor_notifier > | | | | | =20 > | | | | |--67.63%-- s= yscall_work_queue::submit_item > | | | | | | = =20 > | | | | | |-= -32.05%-- posix_file_impl::truncate > | | | | | | = | =20 > | | | | | | = |--65.33%-- _ZN12continuationIZN6futureIJEE4thenIZN19file_data_sin= k_impl5flushEvEUlvE_S1_EET0_OT_EUlS7_E_JEE3runEv > | | | | | | = | reactor::del_timer > | | | | | | = | 0x60b0000e2040 > | | | | | | = | =20 > | | | | | | = |--20.00%-- db::commitlog::segment::flush(unsigned long)::{lambda(= )#1}::operator() > | | | | | | = | | =20 > | | | | | | = | |--73.33%-- future<>::then > > > | | | | | | = | | _ZN12continuationIZN6futureIJ13lw_shared_ptr= IN2db9commitlog7segmentEEEE4thenIZNS4_4syncEvEUlT_E_S6_EET0_OS8_EUlSB_E_JS5= _EE3runEv > | | | | | | = | | reactor::del_timer > | | | | | | = | | 0x60e0000e2040 > | | | | | | = | | =20 > | | | | | | = | --26.67%-- _ZN12continuationIZN6futureIJEE4thenIZN2db9= commitlog7segment5flushEmEUlvE_S0_IJ13lw_shared_ptrIS5_EEEEET0_OT_EUlSC_E_J= EE3runEv > | | | | | | = | reactor::del_timer > | | | | | | = | 0x6090000e2040 > | | | | | | = | =20 > | | | | | | = |--10.67%-- sstables::sstable::seal_sstable > | | | | | | = | std::_Function_handler, unsigned long)::{lambda()#1}>::type ()>::= type>::type seastar::async, unsigned long)::{lambda()#= 1}>(std::decay&&, (std::decay, unsigned long)::{lambda= ()#1}>::type&&)...)::{lambda(futurize::type ()>::type> seastar::async<{lambda()#1}>(futurize::type ()>::type>::type, std::decay<{lambda()#1}>::ty= pe&&)::work&)#1}::operator()(futurize::type ()>::type> seastar::async<{lambda()#1}>(futurize::type ()>::type>::type, std::decay<{lambda()#1}>::ty= pe&&)::work)::{lambda()#1}>::_M_invoke > | | | | | | = | _GLOBAL__sub_I__ZN12app_templateC2Ev > | | | | | | = | =20 > | | | | | | = --4.00%-- sstables::sstable::write_toc > | | | | | | = sstables::sstable::prepare_write_components > | | | | | | = | =20 > | | | | | | = |--50.00%-- 0x4d3a4f6ec4e8cd75 > | | | | | | = | =20 > | | | | | | = --50.00%-- 0x3ebf3dd80e3b174d > | | | | | | = =20 > | | | | | |-= -23.93%-- posix_file_impl::discard > | | | | | | = | =20 > | | | | | | = |--82.14%-- _ZN12continuationIZN6futureIImEE4thenIZN19file_data_si= nk_impl6do_putEm16temporary_bufferIcEEUlmE_S0_IIEEEET0_OT_EUlSA_E_ImEE3runEv > | | | | | | = | reactor::del_timer > | | | | | | = | 0x6080000e2040 > | | | | | | = | =20 > | | | | | | = --17.86%-- futurize = > >::apply > | | | | | | = _ZN12continuationIZN6futureIJ4fileEE4thenIZN2db9commitl= og15segment_manager16allocate_segmentEbEUlS1_E_S0_IJ13lw_shared_ptrINS5_7se= gmentEEEEEET0_OT_EUlSE_E_JS1_EE3runEv > | | | | | | = =20 > | | | | | |-= -20.94%-- reactor::open_file_dma > | | | | | | = | =20 > | | | | | | = |--20.41%-- db::commitlog::segment_manager::allocate_segment > | | | | | | = | db::commitlog::segment_manager::on_timer()::{lambda()#1= }::operator() > | | | | | | = | 0xb8c264 > | | | | | | = | =20 > | | | | | | = |--14.29%-- sstables::sstable::write_simple<(sstables::sstable::co= mponent_type)8, sstables::statistics> > | | | | | | = | std::_Function_handler, unsigned long)::{lambda()#1}>::type ()>::= type>::type seastar::async, unsigned long)::{lambda()#= 1}>(std::decay&&, (std::decay, unsigned long)::{lambda= ()#1}>::type&&)...)::{lambda(futurize::type ()>::type> seastar::async<{lambda()#1}>(futurize::type ()>::type>::type, std::decay<{lambda()#1}>::ty= pe&&)::work&)#1}::operator()(futurize::type ()>::type> seastar::async<{lambda()#1}>(futurize::type ()>::type>::type, std::decay<{lambda()#1}>::ty= pe&&)::work)::{lambda()#1}>::_M_invoke > | | | | | | = | _GLOBAL__sub_I__ZN12app_templateC2Ev > | | | | | | = | =20 > | | | | | | = |--12.24%-- sstables::write_crc > | | | | | | = | | =20 > | | | | | | = | |--16.67%-- 0x313532343536002f > | | | | | | = | | =20 > | | | | | | = | |--16.67%-- 0x373633323533002f > | | | | | | = | | =20 > | | | | | | = | |--16.67%-- 0x363139333232002f > | | | | | | = | | =20 > | | | | | | = | |--16.67%-- 0x353933303330002f > | | | | | | = | | =20 > | | | | | | = | |--16.67%-- 0x383930383133002f > | | | | | | = | | =20 > | | | | | | = | --16.67%-- 0x323338303037002f > | | | | | | = | =20 > | | | | | | = |--12.24%-- sstables::write_digest > | | | | | | = | =20 > | | | | | | = |--10.20%-- sstables::sstable::write_simple<(sstables::sstable::co= mponent_type)7, sstables::filter> > | | | | | | = | sstables::sstable::write_filter > | | | | | | = | std::_Function_handler, unsigned long)::{lambda()#1}>::type ()>::= type>::type seastar::async, unsigned long)::{lambda()#= 1}>(std::decay&&, (std::decay, unsigned long)::{lambda= ()#1}>::type&&)...)::{lambda(futurize::type ()>::type> seastar::async<{lambda()#1}>(futurize::type ()>::type>::type, std::decay<{lambda()#1}>::ty= pe&&)::work&)#1}::operator()(futurize::type ()>::type> seastar::async<{lambda()#1}>(futurize::type ()>::type>::type, std::decay<{lambda()#1}>::ty= pe&&)::work)::{lambda()#1}>::_M_invoke > | | | | | | = | _GLOBAL__sub_I__ZN12app_templateC2Ev > | | | | | | = | =20 > | | | | | | = |--10.20%-- sstables::sstable::write_simple<(sstables::sstable::co= mponent_type)4, sstables::summary_ka> > | | | | | | = | std::_Function_handler, unsigned long)::{lambda()#1}>::type ()>::= type>::type seastar::async, unsigned long)::{lambda()#= 1}>(std::decay&&, (std::decay, unsigned long)::{lambda= ()#1}>::type&&)...)::{lambda(futurize::type ()>::type> seastar::async<{lambda()#1}>(futurize::type ()>::type>::type, std::decay<{lambda()#1}>::ty= pe&&)::work&)#1}::operator()(futurize::type ()>::type> seastar::async<{lambda()#1}>(futurize::type ()>::type>::type, std::decay<{lambda()#1}>::ty= pe&&)::work)::{lambda()#1}>::_M_invoke > | | | | | | = | _GLOBAL__sub_I__ZN12app_templateC2Ev > | | | | | | = | =20 > | | | | | | = |--10.20%-- 0x78d93b > | | | | | | = | =20 > | | | | | | = |--6.12%-- sstables::sstable::open_data > | | | | | | = | | =20 > | | | | | | = | --100.00%-- 0x8000000004000000 > | | | | | | = | =20 > | | | | | | = --4.08%-- sstables::sstable::write_toc > | | | | | | = sstables::sstable::prepare_write_components > | | | | | | = | =20 > | | | | | | = --100.00%-- 0x6100206690ef > | | | | | | = =20 > | | | | | |-= -18.38%-- syscall_work_queue::submit_item > | | | | | | = | =20 > | | | | | | = |--10.00%-- 0x7f4ad89f8fe0 > | | | | | | = | =20 > | | | | | | = |--7.50%-- 0x7f4ad83f8fe0 > | | | | | | = | =20 > | | | | | | = |--7.50%-- 0x7f4ad6bf8fe0 > | | | | | | = | =20 > | | | | | | = |--7.50%-- 0x7f4ad65f8fe0 > | | | | | | = | =20 > | | | | | | = |--5.00%-- 0x60b015e8cd90 > | | | | | | = | =20 > | | | | | | = |--5.00%-- 0x60100acaed90 > | | | | | | = | =20 > | | | | | | = |--5.00%-- 0x607006f04d90 > | | | | | | = | =20 > | | | | | | = |--5.00%-- 0xffffffffffffa5d0 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x60e01acbed90 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x60e01acbec60 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x60a018d7ad90 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x60a018d7ac60 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x60b015e8cc60 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x60900bb8ad60 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x60100acaec60 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x60800951dd90 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x60800951dc60 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x60d009089d90 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x60d009089c60 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x607006f04c60 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x60f005984d60 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x7f4ad77f8fe0 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x7f4adb9f8fe0 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x7f4ad9bf8fe0 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x7f4ad7df8fe0 > | | | | | | = | =20 > | | | | | | = |--2.50%-- 0x7f4ad77f8fe0 > | | | | | | = | =20 > | | | | | | = --2.50%-- 0x7f4ad5ff8fe0 > | | | | | | = =20 > | | | | | |-= -2.99%-- reactor::open_directory > | | | | | | = | =20 > | | | | | | = |--57.14%-- sstables::sstable::filename > | | | | | | = | =20 > | | | | | | = --42.86%-- sstables::sstable::write_toc > | | | | | | = sstables::sstable::prepare_write_components > | | | | | | = | =20 > | | | | | | = |--50.00%-- 0x4d3a4f6ec4e8cd75 > | | | | | | = | =20 > | | | | | | = --50.00%-- 0x3ebf3dd80e3b174d > | | | | | | = =20 > | | | | | -= -1.71%-- reactor::rename_file > | | | | | = sstables::sstable::seal_sstable > | | | | | = std::_Function_handler, unsigned long)::{lambda()#1}>::type ()>::type>::type= seastar::async, unsigned long)::{lambda()#1}>(std::de= cay&&, (std::decay, unsigned long)::{lambda()#1}>::typ= e&&)...)::{lambda(futurize::type ()= >::type> seastar::async<{lambda()#1}>(futurize::type ()>::type>::type, std::decay<{lambda()#1}>::type&&)::work= &)#1}::operator()(futurize::type ()= >::type> seastar::async<{lambda()#1}>(futurize::type ()>::type>::type, std::decay<{lambda()#1}>::type&&)::work= )::{lambda()#1}>::_M_invoke > | | | | | = _GLOBAL__sub_I__ZN12app_templateC2Ev > | | | | | =20 > | | | | --32.37%-- _= ZN12continuationIZN6futureIJEE4thenIZN18syscall_work_queue11submit_itemEPNS= 3_9work_itemEEUlvE_S1_EET0_OT_EUlS9_E_JEE3runEv > | | | | re= actor::del_timer > | | | | 0x= 60d0000e2040 > | | | | =20 > | | | |--29.04%-- __vdso_clock= _gettime > | | | | =20 > | | | |--19.66%-- 0x7f4ade42b1= 93 > | | | | reactor_backe= nd_epoll::complete_epoll_event > | | | | | =20 > | | | | |--41.61%-- s= mp_message_queue::async_work_item seastar::sharded::invo= ke_on >(unsigned int, service::storage_proxy::mutate_l= ocally(frozen_mutation const&)::{lambda(database&)#1}&&)::{lambda()#1}>::pr= ocess > | | | | | | = =20 > | | | | | |-= -79.03%-- smp_message_queue::process_queue<2ul, smp_message_queue::process_= incoming()::{lambda(smp_message_queue::work_item*)#1}> > | | | | | | = | =20 > | | | | | | = |--95.92%-- 0x6070000c3000 > | | | | | | = | =20 > | | | | | | = |--2.04%-- 0x61d0000c1000 > | | | | | | = | =20 > | | | | | | = --2.04%-- 0x61d0000c1000 > | | | | | | = =20 > | | | | | |-= -3.23%-- 0x14dd51 > | | | | | | = =20 > | | | | | |-= -1.61%-- 0x162a54 > | | | | | | = =20 > | | | | | |-= -1.61%-- 0x161dca > | | | | | | = =20 > | | | | | |-= -1.61%-- 0x159c8b > | | | | | | = =20 > | | | | | |-= -1.61%-- 0x1598b5 > | | | | | | = =20 > | | | | | |-= -1.61%-- 0x14dd3e > | | | | | | = =20 > | | | | | |-= -1.61%-- 0x14bad8 > | | | | | | = =20 > | | | | | |-= -1.61%-- 0x14a880 > | | | | | | = =20 > | | | | | |-= -1.61%-- 0x127105 > | | | | | | = =20 > | | | | | |-= -1.61%-- 0x6070000e2040 > | | | | | | = =20 > | | | | | |-= -1.61%-- smp_message_queue::process_queue<2ul, smp_message_queue::process_i= ncoming()::{lambda(smp_message_queue::work_item*)#1}> > | | | | | | = 0x60d0000c3000 > | | | | | | = =20 > | | | | | -= -1.61%-- __vdso_clock_gettime > | | | | | = 0x7f4ad77f9160 > | | | | | =20 > | | | | |--30.20%-- _= _restore_rt > | | | | | | = =20 > | | | | | |-= -57.14%-- __vdso_clock_gettime > | | | | | | = 0x1d > | | | | | | = =20 > | | | | | |-= -9.52%-- smp_message_queue::smp_message_queue > | | | | | | = 0x6070000c3000 > | | | | | | = =20 > | | | | | |-= -4.76%-- 0x600000357240 > | | | | | | = =20 > | | | | | |-= -4.76%-- 0x60000031a640 > | | | | | | = =20 > | | | | | |-= -2.38%-- posix_file_impl::list_directory > | | | | | | = 0x609000044730 > | | | | | | = =20 > | | | | | |-= -2.38%-- 0x46efbf > | | | | | | = =20 > | | | | | |-= -2.38%-- 0x600000442e40 > | | | | | | = =20 > | | | | | |-= -2.38%-- 0x600000376440 > | | | | | | = =20 > | | | | | |-= -2.38%-- 0x6000002bac40 > | | | | | | = =20 > | | | | | |-= -2.38%-- 0x600000295640 > | | | | | | = =20 > | | | | | |-= -2.38%-- 0x600000289e40 > | | | | | | = =20 > | | | | | |-= -2.38%-- 0x60000031a640 > | | | | | | = =20 > | | | | | |-= -2.38%-- 0x7f4ade6f74ed > | | | | | | = __libc_siglongjmp > | | | | | | = 0x60000047be40 > | | | | | | = =20 > | | | | | -= -2.38%-- 0x7f4adb3f7fd0 > | | | | | =20 > | | | | |--14.09%-- 0= x33 > | | | | | =20 > | | | | |--12.08%-- p= romise >::promise > | | | | | _Z= N6futureIJ16temporary_bufferIcEEE4thenIZN12input_streamIcE12read_exactlyEmE= UlT_E_S2_EET0_OS6_ > | | | | | | = =20 > | | | | | |-= -44.44%-- input_stream::read_exactly > | | | | | | = 0x8 > | | | | | | = =20 > | | | | | |-= -11.11%-- 0x7f4adb3f8ea0 > | | | | | | = =20 > | | | | | |-= -11.11%-- 0x7f4ad9bf8ea0 > | | | | | | = =20 > | | | | | |-= -11.11%-- 0x7f4ad89f8ea0 > | | | | | | = =20 > | | | | | |-= -11.11%-- 0x7f4ad83f8ea0 > | | | | | | = =20 > | | | | | |-= -5.56%-- 0x7f4ad77f8ea0 > | | | | | | = =20 > | | | | | -= -5.56%-- 0x7f4ad7df8ea0 > | | | | | =20 > | | | | |--1.34%-- 0x= 7f4ad6bf8d80 > | | | | | =20 > | | | | --0.67%-- 0x= 7f4adadf8d80 > | | | | =20 > | | | |--4.43%-- __libc_send > | | | | _ZN12continua= tionIZN6futureIJmEE4thenIZN7reactor14write_all_partER17pollable_fd_statePKv= mmEUlmE_S0_IJEEEET0_OT_EUlSC_E_JmEE3runEv > | | | | | =20 > | | | | |--14.71%-- 0= x4 > | | | | | =20 > | | | | |--11.76%-- 0= x7f4ad89f8de0 > | | | | | =20 > | | | | |--8.82%-- 0x= 7f4adb3f8de0 > | | | | | =20 > | | | | |--8.82%-- 0x= 7f4ad9bf8de0 > | | | | | =20 > | | | | |--8.82%-- 0x= 7f4ad77f8de0 > | | | | | =20 > | | | | |--8.82%-- 0x= 7f4ad6bf8de0 > | | | | | =20 > | | | | |--5.88%-- 0x= 7f4ad83f8de0 > | | | | | =20 > | | | | |--5.88%-- 0x= 7f4ad7df8de0 > | | | | | =20 > | | | | |--5.88%-- 0x= 7f4ad53f8de0 > | | | | | =20 > | | | | |--2.94%-- 0x= 7f4acc9f8de0 > | | | | | =20 > | | | | |--2.94%-- co= ntinuation::wait()::{lambda(future_state&&)#1}, file>::~= continuation > | | | | | 0x= 611003c8e9b8 > | | | | | =20 > | | | | |--2.94%-- 0x= 7f4adb9f8de0 > | | | | | =20 > | | | | |--2.94%-- 0x= 7f4ad71f8de0 > | | | | | =20 > | | | | |--2.94%-- 0x= 7f4ad65f8de0 > | | | | | =20 > | | | | |--2.94%-- 0x= 7f4ad59f8de0 > | | | | | =20 > | | | | --2.94%-- 0x= 7f4ad35f8de0 > | | | | =20 > | | | |--1.56%-- 0x7f4ade6f754d > | | | | reactor::read= _some > | | | | | =20 > | | | | |--66.67%-- _= ZN12continuationIZN6futureIJEE4thenIZZN7service13storage_proxy22send_to_liv= e_endpointsEmENKUlRSt4pairIK13basic_sstringIcjLj15EESt6vectorIN3gms12inet_a= ddressESaISB_EEEE_clESF_EUlvE_S1_EET0_OT_EUlSK_E_JEE3runEv > | | | | | re= actor::del_timer > | | | | | 0x= 6070000e2040 > | | | | | =20 > | | | | |--8.33%-- _Z= N12continuationIZN6futureIIEE4thenIZ5sleepINSt6chrono3_V212system_clockEmSt= 5ratioILl1ELl1000000EEES1_NS4_8durationIT0_T1_EEEUlvE_S1_EESA_OT_EUlSF_E_IE= E3runEv > | | | | | re= actor::del_timer > | | | | | 0x= 6080000e2040 > | | | | | =20 > | | | | |--8.33%-- 0x= 600000483640 > | | | | | =20 > | | | | |--8.33%-- 0x= 600000480440 > | | | | | =20 > | | | | --8.33%-- 0x= 36 > | | | --0.26%-- [...] > | | | =20 > | | --46.70%-- retint_careful > | | | =20 > | | |--6.24%-- posix_file_im= pl::list_directory > | | | | =20 > | | | |--80.00%-- 0= x60f0000e2020 > | | | | =20 > | | | |--5.00%-- 0x= 601000044730 > | | | | =20 > | | | |--5.00%-- 0x= 60e000044720 > | | | | =20 > | | | |--2.50%-- 0x= 60f000135500 > | | | | =20 > | | | |--2.50%-- 0x= 6190000e2098 > | | | | =20 > | | | |--2.50%-- 0x= 60d0000c3000 > | | | | =20 > | | | --2.50%-- 0x1 > | | | =20 > | | |--3.42%-- boost::lockfr= ee::detail::ringbuffer_base::pop > | | | | =20 > | | | |--95.65%-- b= oost::program_options::variables_map::get > | | | | =20 > | | | --4.35%-- 0x= 618000044680 > | | | =20 > | | |--3.12%-- memory::small= _pool::add_more_objects > | | | | =20 > | | | |--10.53%-- m= anaged_vector::clear_and_relea= se > | | | | mu= tation_partition::clustered_row > | | | | mu= tation::set_clustered_cell > | | | | cq= l3::constants::setter::execute > | | | | cq= l3::statements::update_statement::add_update_for_key > | | | | _Z= N8futurizeI6futureIJSt6vectorI8mutationSaIS2_EEEEE5applyIZN4cql310statement= s22modification_statement13get_mutationsERN7seastar7shardedIN7service13stor= age_proxyEEERKNS8_13query_optionsEblEUlT_E_JSt10unique_ptrINS8_17update_par= ametersESt14default_deleteISN_EEEEES5_OSK_OSt5tupleIJDpT0_EE > | | | | cq= l3::statements::modification_statement::get_mutations > | | | | cq= l3::statements::modification_statement::execute_without_condition > | | | | cq= l3::query_options::query_options > | | | | | = =20 > | | | | |-= -50.00%-- 0x7f4ad77f80e0 > | | | | | = =20 > | | | | -= -50.00%-- 0x7f4ad6bf80e0 > | | | | =20 > | | | |--10.53%-- m= emory::small_pool::add_more_objects > | | | | | = =20 > | | | | |-= -50.00%-- 0x60e00015d000 > | | | | | = =20 > | | | | -= -50.00%-- 0x60b00af6c758 > | | | | =20 > | | | |--5.26%-- 0x= 60a018ee3867 > | | | | =20 > | | | |--5.26%-- 0x= 60d00d41f680 > | | | | =20 > | | | |--5.26%-- 0x= 61400c6bb4d0 > | | | | =20 > | | | |--5.26%-- 0x= 60e007c918d6 > | | | | =20 > | | | |--5.26%-- 0x= 60e0078294ce > | | | | =20 > | | | |--5.26%-- 0x= 607006ee4da0 > | | | | =20 > | | | |--5.26%-- _Z= N12continuationIZN6futureIJEE12then_wrappedIZNS1_16handle_exceptionIZN7serv= ice13storage_proxy22send_to_live_endpointsEmEUlNSt15__exception_ptr13except= ion_ptrEE0_EES1_OT_EUlSA_E_S1_EET0_SA_EUlSA_E_JEE3runEv > | | | | re= actor::del_timer > | | | | 0x= 6030000e2040 > | | | | =20 > | | | |--5.26%-- se= rvice::storage_proxy::mutate_locally > | | | | se= rvice::storage_proxy::send_to_live_endpoints > | | | | pa= rallel_for_each<__gnu_cxx::__normal_iterator > >, service::storage_proxy::mut= ate_begin(std::vector >, db::c= onsistency_level)::{lambda(unsigned long)#1}> > | | | | 0x= 601000136d00 > | | | | =20 > | | | |--5.26%-- 0x= 60a0001900e0 > | | | | =20 > | | | |--5.26%-- 0x= 60e00015d040 > | | | | =20 > | | | |--5.26%-- 0x= 61300015d000 > | | | | =20 > | | | |--5.26%-- 0x= 60e00013bde0 > | | | | =20 > | | | |--5.26%-- 0x= 60b00010f308 > | | | | =20 > | | | |--5.26%-- 0x= 6010000e4808 > | | | | =20 > | | | --5.26%-- 0x= 7f4ad65f7f50 > | | | =20 > | | |--2.82%-- std::unique_p= tr > reactor::make_po= llfn(reactor::run()::{lambda()#3}&&)::the_pol= lfn::poll_and_check_more_work > | | | | =20 > | | | |--25.00%-- b= oost::lockfree::detail::ringbuffer_base::pop > | | | | bo= ost::program_options::variables_map::get > | | | | =20 > | | | |--25.00%-- 0= x1 > | | | | =20 > | | | |--12.50%-- 0= x53 > | | | | =20 > | | | |--12.50%-- 0= x3e > | | | | =20 > | | | |--12.50%-- 0= x24 > | | | | =20 > | | | --12.50%-- 0= xb958000000000000 > | | | =20 > | | |--2.67%-- std::_Functio= n_handler, std::less, std::allocator > > > >)::{lambda(partition_key con= st&)#1}>::_M_invoke > | | | | =20 > | | | |--66.67%-- 0= x1b5c280 > | | | | =20 > | | | |--27.78%-- m= anaged_vector::resize > | | | | ro= w::apply > | | | | mu= tation_partition_applier::accept_row_cell > | | | | mu= tation_partition_view::accept > | | | | =20 > | | | --5.56%-- 0x= 2a4399 > | | | =20 > | | |--2.08%-- smp_message_q= ueue::smp_message_queue > | | | | =20 > | | | |--60.00%-- 0= x60f0000c3000 > | | | | =20 > | | | |--10.00%-- 0= x6000002d7240 > | | | | =20 > | | | |--10.00%-- 0= x19 > | | | | =20 > | | | |--10.00%-- 0= xb > | | | | =20 > | | | --10.00%-- 0= x7 > | | | =20 > | | |--1.93%-- smp_message_q= ueue::process_queue<4ul, smp_message_queue::process_completions()::{lambda(= smp_message_queue::work_item*)#1}> > | | | =20 > | | |--1.63%-- __vdso_clock_= gettime > | | | | =20 > | | | --100.00%-- = __clock_gettime > | | | st= d::chrono::_V2::system_clock::now > | | | 0x= a63209 > | | | =20 > | | |--1.49%-- memory::small= _pool::deallocate > | | | | =20 > | | | |--40.00%-- m= anaged_vector::emplace_back > | | | | =20 > | | | |--20.00%-- s= td::_Hashtable, std::allocator >, std::__detail::_Select1st, std::equal_to, std::hash, std::__detail::_Mod_range_hashing, std= ::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std:= :__detail::_Hashtable_traits >::_M_erase > | | | | se= rvice::storage_proxy::got_response > | | | | _Z= N12continuationIZN6futureIJEE4thenIZZN7service13storage_proxy22send_to_live= _endpointsEmENKUlRSt4pairIK13basic_sstringIcjLj15EESt6vectorIN3gms12inet_ad= dressESaISB_EEEE_clESF_EUlvE_S1_EET0_OT_EUlSK_E_JEE3runEv > | | | | re= actor::del_timer > | | | | 0x= 6100000e2040 > | | | | =20 > | | | |--10.00%-- c= ql3::statements::modification_statement::get_mutations > | | | | =20 > | | | |--10.00%-- c= ql3::statements::modification_statement::build_partition_keys > | | | | cq= l3::statements::modification_statement::create_exploded_clustering_prefix > | | | | 0x= 60c014be0b00 > | | | | =20 > | | | |--10.00%-- m= utation_partition::~mutation_partition > | | | | st= d::vector >::~vector > | | | | se= rvice::storage_proxy::mutate_with_triggers > | | | | cq= l3::statements::modification_statement::execute_without_condition > | | | | cq= l3::statements::modification_statement::execute > | | | | cq= l3::query_processor::process_statement > | | | | tr= ansport::cql_server::connection::process_execute > | | | | tr= ansport::cql_server::connection::process_request_one > | | | | fu= turize >, service::client_state> > >::apply >&&)#1}::operator()(future >&&) con= st::{lambda(temporary_buffer)#1}::operator()(temporary_buffer) const:= :{lambda()#1}::operator()()::{lambda()#1}&> > | | | | fu= turize >::apply >&&)#1}::operator()(future >&&) const::{lambda(tempo= rary_buffer)#1}, temporary_buffer> > | | | | fu= turize >::apply >&&)#1}, future > > > | | | | 0x= 8961de > | | | | =20 > | | | --10.00%-- o= bject_deleter_impl::~object_deleter_impl > | | | _Z= N12continuationIZN6futureIJEE12then_wrappedIZZNS1_7finallyIZ7do_withI11fore= ign_ptrI10shared_ptrIN9transport10cql_server8responseEEEZZNS8_10connection1= 4write_responseEOSB_ENUlvE_clEvEUlRT_E_EDaOSF_OT0_EUlvE_EES1_SI_ENUlS1_E_cl= ES1_EUlSF_E_S1_EESJ_SI_EUlSI_E_JEED0Ev > | | | 0x= 61a0000c3db0 > | | | =20 > | | |--1.34%-- dht::decorate= d_key::equal > | | | | =20 > | | | |--83.33%-- 0= x607000138f00 > | | | | =20 > | | | --16.67%-- 0= x60a0000e0f40 > | | | =20 > | | |--1.34%-- service::stor= age_proxy::send_to_live_endpoints > | | | =20 > | | |--1.19%-- transport::cq= l_server::connection::process_execute > | | | transport::cq= l_server::connection::process_request_one > | | | futurize >, ser= vice::client_state> > >::apply >&&)#1}::operator()(future >&&) const::{lambda= (temporary_buffer)#1}::operator()(temporary_buffer) const::{lambda()#= 1}::operator()()::{lambda()#1}&> > | | | futurize >::apply >&&)#1}::operator()(future >&&) const::{lambda(temporary_buffer= )#1}, temporary_buffer> > | | | futurize >::apply >&&)#1}, future > > > | | | | =20 > | | | |--87.50%-- t= ransport::cql_server::connection::process_request > | | | | do= _until_continued > | | | | do= _void_futurize_apply(transport::cql_server::connection::process()::{lambda()#1}&= , transport::cql_server::connection::process()::{lambda()#2}&&, promise<>):= :{lambda(future<>)#1}, promise<> > > | | | | do= _void_futurize_apply(transport::cql_server::connection::process()::{lambda()#1}&= , transport::cql_server::connection::process()::{lambda()#2}&&, promise<>):= :{lambda(future<>)#1}, promise<> > > | | | | 0x= 60e0000c3000 > | | | | =20 > | | | --12.50%-- 0= x8961de > | | | =20 > | | |--1.19%-- reactor::run > | | | | =20 > | | | |--87.50%-- s= mp::configure(boost::program_options::variables_map)::{lambda()#1}::operato= r() > | | | | co= ntinuation > future<>::then > file::dma_read_bulk(unsigned long, unsigned long)::{la= mbda(unsigned long)#1}::operator()(unsigned long)::{lambda()#3}, future > >(future > file::dma_read_bulk= (unsigned long, unsigned long)::{lambda(unsigned long)#1}::operator()= (unsigned long)::{lambda()#3}&&)::{lambda(future >)#= 1}>::run > | | | | 0x= 600000043d00 > | | | | =20 > | | | --12.50%-- a= pp_template::run_deprecated > | | | ma= in > | | | __= libc_start_main > | | | _G= LOBAL__sub_I__ZN3org6apache9cassandra21g_cassandra_constantsE > | | | 0x= 7f4ae20c9fa0 > | | | =20 > | | |--1.04%-- __clock_getti= me > | | | std::chrono::= _V2::system_clock::now > | | | | =20 > | | | |--42.86%-- r= eactor::run > | | | | sm= p::configure(boost::program_options::variables_map)::{lambda()#1}::operator= () > | | | | co= ntinuation > future<>::then > file::dma_read_bulk(unsigned long, unsigned long)::{la= mbda(unsigned long)#1}::operator()(unsigned long)::{lambda()#3}, future > >(future > file::dma_read_bulk= (unsigned long, unsigned long)::{lambda(unsigned long)#1}::operator()= (unsigned long)::{lambda()#3}&&)::{lambda(future >)#= 1}>::run > | | | | 0x= 600000043d00 > | | | | =20 > | | | |--14.29%-- 0= xa63209 > | | | | =20 > | | | |--14.29%-- c= ontinuation future<>::finally >, shared_ptr= , service::storage_proxy::init_messaging_service()::{lambda(std::vector >)#1}::operator()(std::vector= >) const::{lambda(std::ve= ctor > const&, shared_ptr<= service::storage_proxy>&)#1}>(std::vector >&&, shared_ptr&&, service::storage= _proxy::init_messaging_service()::{lambda(std::vector >)#1}::operator()(std::vector >) const::{lambda(std::vector > const&, shared_ptr&)#1}&&)::{lambda()#1}>(service::storage_proxy::init_messaging_service= ()::{lambda(std::vector | | | | 0x= 2b7434 > | | | | =20 > | | | |--14.29%-- _= ZN8futurizeI6futureIJSt10unique_ptrIN4cql317update_parametersESt14default_d= eleteIS3_EEEEE5applyIZNS2_10statements22modification_statement22make_update= _parametersERN7seastar7shardedIN7service13storage_proxyEEE13lw_shared_ptrIS= t6vectorI13partition_keySaISK_EEESI_I26exploded_clustering_prefixERKNS2_13q= uery_optionsEblEUlT_E_JNSt12experimental15fundamentals_v18optionalINS3_13pr= efetch_dataEEEEEES7_OST_OSt5tupleIJDpT0_EE > | | | | cq= l3::statements::modification_statement::make_update_parameters > | | | | cq= l3::statements::modification_statement::get_mutations > | | | | cq= l3::statements::modification_statement::execute_without_condition > | | | | cq= l3::query_options::query_options > | | | | 0x= 7f4ad6bf80e0 > | | | | =20 > | | | --14.29%-- d= atabase::apply_in_memory > | | | da= tabase::do_apply > | | | _Z= N12continuationIZN6futureIJEE4thenIZN8database5applyERK15frozen_mutationEUl= vE_S1_EET0_OT_EUlSA_E_JEE3runEv > | | | re= actor::del_timer > | | | 0x= 6090000e2040 > | | | =20 > | | |--1.04%-- memory::small= _pool::allocate > | | | | =20 > | | | |--14.29%-- 0= x5257c379469d9 > | | | | =20 > | | | |--14.29%-- 0= x609002b9fe98 > | | | | =20 > | | | |--14.29%-- 0= x13c8b90 > | | | | =20 > | | | |--14.29%-- 0= x60f000190710 > | | | | =20 > | | | |--14.29%-- 0= x25 > | | | | =20 > | | | |--14.29%-- 0= x7f4ad6bf84c0 > | | | | =20 > | | | --14.29%-- 0= x7f4ad53f81f0 > | | | =20 > | | |--0.89%-- db::serialize= r::serializer > | | | mutation_part= ition_serializer::write_without_framing > | | | frozen_mutati= on::frozen_mutation > | | | frozen_mutati= on::frozen_mutation > | | | =20 > | | |--0.89%-- do_until_cont= inued > | | | do_void_futur= ize_apply(transport::cql_server::connection::process()::{lambda()#1}&, transport= ::cql_server::connection::process()::{lambda()#2}&&, promise<>)::{lambda(fu= ture<>)#1}, promise<> > > | | | do_void_futur= ize_apply(transport::cql_server::connection::process()::{lambda()#1}&, transport= ::cql_server::connection::process()::{lambda()#2}&&, promise<>)::{lambda(fu= ture<>)#1}, promise<> > > | | | 0x60f0000c3000 > | | | =20 > | | |--0.89%-- futurize >::apply >&&)#1}::operator()(future >&&) const::{lambda(temporary_buffer= )#1}, temporary_buffer> > | | | futurize >::apply >&&)#1}, future > > > | | | transport::cq= l_server::connection::process_request > | | | do_until_cont= inued > | | | do_void_futur= ize_apply(transport::cql_server::connection::process()::{lambda()#1}&, transport= ::cql_server::connection::process()::{lambda()#2}&&, promise<>)::{lambda(fu= ture<>)#1}, promise<> > > | | | do_void_futur= ize_apply(transport::cql_server::connection::process()::{lambda()#1}&, transport= ::cql_server::connection::process()::{lambda()#2}&&, promise<>)::{lambda(fu= ture<>)#1}, promise<> > > | | | | =20 > | | | |--83.33%-- 0= x6090000c3000 > | | | | =20 > | | | --16.67%-- 0= x600000044400 > | | | =20 > | | |--0.89%-- std::_Functio= n_handler::_M_invoke > | | | | =20 > | | | |--50.00%-- r= eactor::run > | | | | sm= p::configure(boost::program_options::variables_map)::{lambda()#1}::operator= () > | | | | co= ntinuation > future<>::then > file::dma_read_bulk(unsigned long, unsigned long)::{la= mbda(unsigned long)#1}::operator()(unsigned long)::{lambda()#3}, future > >(future > file::dma_read_bulk= (unsigned long, unsigned long)::{lambda(unsigned long)#1}::operator()= (unsigned long)::{lambda()#3}&&)::{lambda(future >)#= 1}>::run > | | | | 0x= 600000043d00 > | | | | =20 > | | | --50.00%-- r= eactor::signals::signal_handler::signal_handler > | | | 0x= 3e8 > | | | =20 > | | |--0.74%-- db::commitlog= ::segment::allocate > | | | | =20 > | | | --100.00%-- = db::commitlog::add > | | | da= tabase::do_apply > | | | | = =20 > | | | |-= -75.00%-- database::apply > | | | | = smp_message_queue::async_work_item seastar::sharded::invoke_on >(unsigned int, service::storage_proxy::mutat= e_locally(mutation const&)::{lambda(database&)#1}&&)::{lambda()#1}>::process > | | | | = smp_message_queue::process_queue<2ul, smp_message_queue::process_i= ncoming()::{lambda(smp_message_queue::work_item*)#1}> > | | | | = boost::lockfree::detail::ringbuffer_base::pop > | | | | = boost::program_options::variables_map::get > | | | | = =20 > | | | -= -25.00%-- _ZN12continuationIZN6futureIJEE4thenIZN8database5applyERK15frozen= _mutationEUlvE_S1_EET0_OT_EUlSA_E_JEE3runEv > | | | = reactor::del_timer > | | | = 0x60b0000e2040 > | | | =20 > | | |--0.74%-- service::stor= age_proxy::create_write_response_handler > | | | =20 > | | |--0.74%-- transport::cq= l_server::connection::process_request_one > | | | futurize >, ser= vice::client_state> > >::apply >&&)#1}::operator()(future >&&) const::{lambda= (temporary_buffer)#1}::operator()(temporary_buffer) const::{lambda()#= 1}::operator()()::{lambda()#1}&> > | | | futurize >::apply >&&)#1}::operator()(future >&&) const::{lambda(temporary_buffer= )#1}, temporary_buffer> > | | | futurize >::apply >&&)#1}, future > > > | | | | =20 > | | | |--80.00%-- t= ransport::cql_server::connection::process_request > | | | | do= _until_continued > | | | | do= _void_futurize_apply(transport::cql_server::connection::process()::{lambda()#1}&= , transport::cql_server::connection::process()::{lambda()#2}&&, promise<>):= :{lambda(future<>)#1}, promise<> > > | | | | do= _void_futurize_apply(transport::cql_server::connection::process()::{lambda()#1}&= , transport::cql_server::connection::process()::{lambda()#2}&&, promise<>):= :{lambda(future<>)#1}, promise<> > > | | | | 0x= 60a0000c3000 > | | | | =20 > | | | --20.00%-- 0= x8961de > | | | =20 > | | |--0.74%-- compound_type= <(allow_prefixes)0>::compare > | | | | =20 > | | | |--20.00%-- 0= x6030056c0f20 > | | | | =20 > | | | |--20.00%-- b= oost::intrusive::bstbase2, &rows_entry::_link>, rows_= entry::compare, (boost::intrusive::algo_types)5, boost::intrusive::detail::= default_header_holder > = >::find > | | | | mu= tation_partition::clustered_row > | | | | mu= tation::set_clustered_cell > | | | | cq= l3::constants::setter::execute > | | | | cq= l3::statements::update_statement::add_update_for_key > | | | | _Z= N8futurizeI6futureIJSt6vectorI8mutationSaIS2_EEEEE5applyIZN4cql310statement= s22modification_statement13get_mutationsERN7seastar7shardedIN7service13stor= age_proxyEEERKNS8_13query_optionsEblEUlT_E_JSt10unique_ptrINS8_17update_par= ametersESt14default_deleteISN_EEEEES5_OSK_OSt5tupleIJDpT0_EE > | | | | cq= l3::statements::modification_statement::get_mutations > | | | | cq= l3::statements::modification_statement::execute_without_condition > | | | | cq= l3::query_options::query_options > | | | | 0x= 7f4adb3f80e0 > | | | | =20 > | | | |--20.00%-- c= ompound_type<(allow_prefixes)0>::compare > | | | | =20 > | | | |--20.00%-- m= utation_partition::clustered_row > | | | | bo= ost::intrusive::bstree_impl, &rows_entry::_link>, row= s_entry::compare, unsigned long, true, (boost::intrusive::algo_types)5, boo= st::intrusive::detail::default_header_holder > >::insert_unique > | | | | bo= ost::intrusive::bstree_algorithms >::prev_node > | | | | 0x= 12d > | | | | =20 > | | | --20.00%-- 0= x60f00052daf0 > | | | =20 > | | |--0.74%-- __memmove_sss= e3_back > | | | | =20 > | | | |--40.00%-- o= utput_stream::write > | | | | | = =20 > | | | | |-= -50.00%-- transport::cql_server::response::output > | | | | | = futurize >::apply >&&)::{l= ambda()#1}> > | | | | | = =20 > | | | | -= -50.00%-- 0x7c7fb2 > | | | | = 0x5257c37847fa0 > | | | | =20 > | | | |--20.00%-- t= ransport::cql_server::connection::read_short_bytes > | | | | tr= ansport::cql_server::connection::process_query > | | | | 0x= 7f4ada7f86f0 > | | | | =20 > | | | |--20.00%-- t= ransport::cql_server::response::output > | | | | fu= turize >::apply >&&)::{lambda()#1}> > | | | | 0x2 > | | | | =20 > | | | --20.00%-- s= mp_message_queue::flush_response_batch > | | | bo= ost::lockfree::detail::ringbuffer_base::pop > | | | bo= ost::program_options::variables_map::get > | | | =20 > | | |--0.74%-- syscall_work_= queue::work_item_returning, reactor::file_size(b= asic_sstring)::{lambda()#1}>::~work_item_returning > | | | | =20 > | | | |--60.00%-- 0= x6130000c3000 > | | | | =20 > | | | |--20.00%-- 0= x608001fe59a0 > | | | | =20 > | | | --20.00%-- 0= x16 > | | | =20 > | | |--0.74%-- __memset_sse2 > | | | | =20 > | | | |--40.00%-- s= td::_Hashtable, std::pair const, std::u= nordered_set, std::equal_to= , std::allocator > >, std::allocator<= std::pair const, std::unordered_set, std::equal_to, std::allocato= r > > >, std::__detail::_Select1st, std::equal_to >, std::hash >, std::__detail::_Mod_range_has= hing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_pol= icy, std::__detail::_Hashtable_traits >::~_Hashtable > | | | | lo= cator::token_metadata::pending_endpoints_for > | | | | se= rvice::storage_proxy::create_write_response_handler > | | | | se= rvice::storage_proxy::mutate_prepare >, service::storage_proxy::mutate_prepare(std::vector >&, db::consistency_level, db::write_type)::{lambda(= mutation const&, db::consistency_level, db::write_type)#1}> > | | | | se= rvice::storage_proxy::mutate > | | | | se= rvice::storage_proxy::mutate_with_triggers > | | | | cq= l3::statements::modification_statement::execute_without_condition > | | | | cq= l3::statements::modification_statement::execute > | | | | cq= l3::query_processor::process_statement > | | | | tr= ansport::cql_server::connection::process_execute > | | | | tr= ansport::cql_server::connection::process_request_one > | | | | fu= turize >, service::client_state> > >::apply >&&)#1}::operator()(future >&&) con= st::{lambda(temporary_buffer)#1}::operator()(temporary_buffer) const:= :{lambda()#1}::operator()()::{lambda()#1}&> > | | | | fu= turize >::apply >&&)#1}::operator()(future >&&) const::{lambda(tempo= rary_buffer)#1}, temporary_buffer> > | | | | fu= turize >::apply >&&)#1}, future > > > | | | | tr= ansport::cql_server::connection::process_request > | | | | do= _until_continued > | | | | do= _void_futurize_apply(transport::cql_server::connection::process()::{lambda()#1}&= , transport::cql_server::connection::process()::{lambda()#2}&&, promise<>):= :{lambda(future<>)#1}, promise<> > > | | | | do= _void_futurize_apply(transport::cql_server::connection::process()::{lambda()#1}&= , transport::cql_server::connection::process()::{lambda()#2}&&, promise<>):= :{lambda(future<>)#1}, promise<> > > | | | | 0x= 6020000c3000 > | | | | =20 > | | | |--40.00%-- s= ervice::digest_read_resolver::~digest_read_resolver > | | | | | = =20 > | | | | -= -100.00%-- 0x610002612b50 > | | | | =20 > | | | --20.00%-- s= td::_Hashtable, std::pair const, std::vector > >, std::allocator const, std::vector > > >, std::__detail::_Select1st, std::equal_to >, std::hash >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_= hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits= >::~_Hashtable > | | | se= rvice::storage_proxy::send_to_live_endpoints > | | | pa= rallel_for_each<__gnu_cxx::__normal_iterator > >, service::storage_proxy::mut= ate_begin(std::vector >, db::c= onsistency_level)::{lambda(unsigned long)#1}> > | | | se= rvice::storage_proxy::mutate > | | | se= rvice::storage_proxy::mutate_with_triggers > | | | cq= l3::statements::modification_statement::execute_without_condition > | | | cq= l3::statements::modification_statement::execute > | | | cq= l3::query_processor::process_statement > | | | tr= ansport::cql_server::connection::process_execute > | | | tr= ansport::cql_server::connection::process_request_one > | | | fu= turize >, service::client_state> > >::apply >&&)#1}::operator()(future >&&) con= st::{lambda(temporary_buffer)#1}::operator()(temporary_buffer) const:= :{lambda()#1}::operator()()::{lambda()#1}&> > | | | fu= turize >::apply >&&)#1}::operator()(future >&&) const::{lambda(tempo= rary_buffer)#1}, temporary_buffer> > | | | fu= turize >::apply >&&)#1}, future > > > | | | tr= ansport::cql_server::connection::process_request > | | | do= _until_continued > | | | do= _void_futurize_apply(transport::cql_server::connection::process()::{lambda()#1}&= , transport::cql_server::connection::process()::{lambda()#2}&&, promise<>):= :{lambda(future<>)#1}, promise<> > > | | | do= _void_futurize_apply(transport::cql_server::connection::process()::{lambda()#1}&= , transport::cql_server::connection::process()::{lambda()#2}&&, promise<>):= :{lambda(future<>)#1}, promise<> > > | | | 0x= 6070000c3000 > | | | =20 > | | |--0.74%-- reactor::del_= timer > | | | | =20 > | | | |--80.00%-- 0= x60a0000e2040 > | | | | =20 > | | | --20.00%-- 0= x6080000c3db0 > | | | =20 > | | |--0.59%-- unimplemented= ::operator<< > | | | | =20 > | | | |--25.00%-- _= ZN12continuationIZN6futureIJ10shared_ptrIN9transport8messages14result_messa= geEEEE4thenIZN4cql315query_processor17process_statementES1_INS8_13cql_state= mentEERN7service11query_stateERKNS8_13query_optionsEEUlT_E_S6_EET0_OSI_EUlS= L_E_JS5_EED2Ev > | | | | 0x= 600100000008 > | | | | =20 > | | | |--25.00%-- f= loating_type_impl::from_string > | | | | =20 > | | | |--25.00%-- 0= x60e0000e4c10 > | | | | =20 > | | | --25.00%-- _= ZN12continuationIZN6futureIJ10shared_ptrIN9transport8messages14result_messa= geEEEE4thenIZN4cql315query_processor17process_statementES1_INS8_13cql_state= mentEERN7service11query_stateERKNS8_13query_optionsEEUlT_E_S6_EET0_OSI_EUlS= L_E_JS5_EED2Ev > | | | 0x= 600100000008 > | | | =20 > | | |--0.59%-- std::_Hashtab= le, std::allocator >, std::__detail::_Select1st, std::equal_to, s= td::hash, std::__detail::_Mod_range_hashing, std::__detail::= _Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_= Hashtable_traits >::_M_insert_unique_node > | | | service::stor= age_proxy::register_response_handler > | | | service::stor= age_proxy::create_write_response_handler > | | | service::stor= age_proxy::create_write_response_handler > | | | service::stor= age_proxy::mutate_prepare >,= service::storage_proxy::mutate_prepare(std::vector >&, db::consistency_level, db::write_type)::{lambda(mutation co= nst&, db::consistency_level, db::write_type)#1}> > | | | service::stor= age_proxy::mutate > | | | service::stor= age_proxy::mutate_with_triggers > | | | cql3::stateme= nts::modification_statement::execute_without_condition > | | | cql3::stateme= nts::modification_statement::execute > | | | cql3::query_p= rocessor::process_statement > | | | transport::cq= l_server::connection::process_execute > | | | transport::cq= l_server::connection::process_request_one > | | | futurize >, ser= vice::client_state> > >::apply >&&)#1}::operator()(future >&&) const::{lambda= (temporary_buffer)#1}::operator()(temporary_buffer) const::{lambda()#= 1}::operator()()::{lambda()#1}&> > | | | futurize >::apply >&&)#1}::operator()(future >&&) const::{lambda(temporary_buffer= )#1}, temporary_buffer> > | | | futurize >::apply >&&)#1}, future > > > | | | transport::cq= l_server::connection::process_request > | | | do_until_cont= inued > | | | do_void_futur= ize_apply(transport::cql_server::connection::process()::{lambda()#1}&, transport= ::cql_server::connection::process()::{lambda()#2}&&, promise<>)::{lambda(fu= ture<>)#1}, promise<> > > | | | do_void_futur= ize_apply(transport::cql_server::connection::process()::{lambda()#1}&, transport= ::cql_server::connection::process()::{lambda()#2}&&, promise<>)::{lambda(fu= ture<>)#1}, promise<> > > | | | 0x60b0000c3000 > | | | =20 > | | |--0.59%-- mutation::set= _clustered_cell > | | | | =20 > | | | |--75.00%-- 0= xa > | | | | =20 > | | | --25.00%-- c= ql3::constants::setter::execute > | | | cq= l3::statements::update_statement::add_update_for_key > | | | _Z= N8futurizeI6futureIJSt6vectorI8mutationSaIS2_EEEEE5applyIZN4cql310statement= s22modification_statement13get_mutationsERN7seastar7shardedIN7service13stor= age_proxyEEERKNS8_13query_optionsEblEUlT_E_JSt10unique_ptrINS8_17update_par= ametersESt14default_deleteISN_EEEEES5_OSK_OSt5tupleIJDpT0_EE > | | | cq= l3::statements::modification_statement::get_mutations > | | | cq= l3::statements::modification_statement::execute_without_condition > | | | cq= l3::query_options::query_options > | | | 0x= 7f4ad89f80e0 > | | | =20 > | | |--0.59%-- memory::small= _pool::small_pool > | | | | =20 > | | | |--25.00%-- m= emory::stats > | | | | bo= ost::program_options::variables_map::get > | | | | =20 > | | | |--25.00%-- m= emory::reclaimer::~reclaimer > | | | | 0x= 1e > | | | | =20 > | | | |--25.00%-- m= emory::allocate_aligned > | | | | =20 > | | | --25.00%-- m= emory::small_pool::add_more_objects > | | | me= mory::small_pool::add_more_objects > | | | 0x= 6100000e0310 > | | | =20 > | | |--0.59%-- __memcpy_sse2= _unaligned > | | | | =20 > | | | |--50.00%-- m= utation_partition_applier::accept_row_cell > | | | | mu= tation_partition_view::accept > | | | | bo= ost::intrusive::bstree_algorithms >::prev_node > | | | | 0x= 12d > | | | | =20 > | | | |--25.00%-- s= canning_reader::operator() > | | | | ss= tables::sstable::do_write_components > | | | | ss= tables::sstable::prepare_write_components > | | | | st= d::_Function_handler, unsigned long)::{lambda()#1}>::type ()>::type>::type seastar::a= sync, unsigned long)::{lambda()#1}>(std::decay&&, (std= ::decay, unsigned long)::{lambda()#1}>::type&&)...)::{= lambda(futurize::type ()>::type> se= astar::async<{lambda()#1}>(futurize= ::type ()>::type>::type, std::decay<{lambda()#1}>::type&&)::work&)#1}::oper= ator()(futurize::type ()>::type> se= astar::async<{lambda()#1}>(futurize= ::type ()>::type>::type, std::decay<{lambda()#1}>::type&&)::work)::{lambda(= )#1}>::_M_invoke > | | | | _G= LOBAL__sub_I__ZN12app_templateC2Ev > | | | | =20 > | | | --25.00%-- m= emtable::find_or_create_partition_slow > | | | me= mtable::apply > | | | da= tabase::apply_in_memory > | | | da= tabase::do_apply > | | | da= tabase::apply > | | | sm= p_message_queue::async_work_item seastar::sharded::invok= e_on >(unsigned int, service::storage_proxy::mutate_locally(m= utation const&)::{lambda(database&)#1}&&)::{lambda()#1}>::process > | | | sm= p_message_queue::process_queue<2ul, smp_message_queue::process_incoming()::= {lambda(smp_message_queue::work_item*)#1}> > | | | bo= ost::lockfree::detail::ringbuffer_base::pop > | | | bo= ost::program_options::variables_map::get > | | | =20 > | | |--0.59%-- smp_message_q= ueue::flush_response_batch > | | | | =20 > | | | |--25.00%-- b= oost::lockfree::detail::ringbuffer_base::pop > | | | | bo= ost::program_options::variables_map::get > | | | | =20 > | | | |--25.00%-- 0= x13 > | | | | =20 > | | | |--25.00%-- 0= x7f4ad5ff8f40 > | | | | =20 > | | | --25.00%-- r= eactor::run > | | | sm= p::configure(boost::program_options::variables_map)::{lambda()#1}::operator= () > | | | co= ntinuation > future<>::then > file::dma_read_bulk(unsigned long, unsigned long)::{la= mbda(unsigned long)#1}::operator()(unsigned long)::{lambda()#3}, future > >(future > file::dma_read_bulk= (unsigned long, unsigned long)::{lambda(unsigned long)#1}::operator()= (unsigned long)::{lambda()#3}&&)::{lambda(future >)#= 1}>::run > | | | 0x= 600000043d00 > | | --54.38%-- [...] > | | =20 > | |--14.26%-- schedule_timeout > | | | =20 > | | |--38.52%-- wait_for_completion > | | | | =20 > | | | |--90.07%-- flush_work > | | | | xlog_cil_forc= e_lsn > | | | | | =20 > | | | | |--96.85%-- _= xfs_log_force_lsn > | | | | | | = =20 > | | | | | |-= -79.67%-- xfs_file_fsync > | | | | | | = vfs_fsync_range > | | | | | | = do_fsync > | | | | | | = sys_fdatasync > | | | | | | = entry_SYSCALL_64_fastpath > | | | | | | = | =20 > | | | | | | = --100.00%-- 0x7f4ade4212ad > | | | | | | = syscall_work_queue::work_item_returning, posix_file_impl::flush()::{lambda()#1}>::process > | | | | | | = 0x6030000c3ec0 > | | | | | | = =20 > | | | | | -= -20.33%-- xfs_dir_fsync > | | | | | = vfs_fsync_range > | | | | | = do_fsync > | | | | | = sys_fdatasync > | | | | | = entry_SYSCALL_64_fastpath > | | | | | = | =20 > | | | | | = --100.00%-- 0x7f4ade4212ad > | | | | | = syscall_work_queue::work_item_returning, posix_file_impl::flush()::{lambda()#1}>::process > | | | | | = 0x6040000c3ec0 > | | | | | =20 > | | | | --3.15%-- _x= fs_log_force > | | | | xf= s_log_force > | | | | xf= s_buf_lock > | | | | _x= fs_buf_find > | | | | xf= s_buf_get_map > | | | | xf= s_trans_get_buf_map > | | | | xf= s_btree_get_bufl > | | | | xf= s_bmap_extents_to_btree > | | | | xf= s_bmap_add_extent_hole_real > | | | | xf= s_bmapi_write > | | | | xf= s_iomap_write_direct > | | | | __= xfs_get_blocks > | | | | xf= s_get_blocks_direct > | | | | do= _blockdev_direct_IO > | | | | __= blockdev_direct_IO > | | | | xf= s_vm_direct_IO > | | | | xf= s_file_dio_aio_write > | | | | xf= s_file_write_iter > | | | | ai= o_run_iocb > | | | | do= _io_submit > | | | | sy= s_io_submit > | | | | en= try_SYSCALL_64_fastpath > | | | | io= _submit > | | | | 0x= 46d98a > | | | | =20 > | | | --9.93%-- submit_bio_wa= it > | | | blkdev_issue_= flush > | | | xfs_blkdev_is= sue_flush > | | | xfs_file_fsync > | | | vfs_fsync_ran= ge > | | | do_fsync > | | | sys_fdatasync > | | | entry_SYSCALL= _64_fastpath > | | | | =20 > | | | --100.00%-- = 0x7f4ade4212ad > | | | sy= scall_work_queue::work_item_returning, posix_file_impl:= :flush()::{lambda()#1}>::process > | | | 0x= 6030000c3ec0 > | | | =20 > | | |--32.79%-- io_schedule_timeout > | | | bit_wait_io > | | | __wait_on_bit > | | | | =20 > | | | |--51.67%-- wait_on_page= _bit > | | | | | =20 > | | | | |--95.16%-- f= ilemap_fdatawait_range > | | | | | fi= lemap_write_and_wait_range > | | | | | xf= s_file_fsync > | | | | | vf= s_fsync_range > | | | | | do= _fsync > | | | | | sy= s_fdatasync > | | | | | en= try_SYSCALL_64_fastpath > | | | | | 0x= 7f4ade4212ad > | | | | | sy= scall_work_queue::work_item_returning, posix_file_impl:= :flush()::{lambda()#1}>::process > | | | | | 0x= 60b0000c3ec0 > | | | | | =20 > | | | | --4.84%-- __= migration_entry_wait > | | | | mi= gration_entry_wait > | | | | ha= ndle_mm_fault > | | | | __= do_page_fault > | | | | do= _page_fault > | | | | pa= ge_fault > | | | | st= d::_Function_handler::_M_invoke > | | | | | = =20 > | | | | -= -100.00%-- service::storage_proxy::mutate_prepare >, service::storage_proxy::mutate_prepare(std::vector= >&, db::consistency_level, db::write_ty= pe)::{lambda(mutation const&, db::consistency_level, db::write_type)#1}> > | | | | = service::storage_proxy::mutate > | | | | = service::storage_proxy::mutate_with_triggers > | | | | = cql3::statements::modification_statement::execute_without_condition > | | | | = cql3::statements::modification_statement::execute > | | | | = cql3::query_processor::process_statement > | | | | = transport::cql_server::connection::process_execute > | | | | = transport::cql_server::connection::process_request_one > | | | | = futurize >, service::client_state> > >::apply >&&)#1}::operator()(future= >&&) const::{lambda(temporary_buffer)#1}::operator()(temporary_buf= fer) const::{lambda()#1}::operator()()::{lambda()#1}&> > | | | | = futurize >::apply >&&)#1}::operator()(future >&&) const::{l= ambda(temporary_buffer)#1}, temporary_buffer> > | | | | = futurize >::apply >&&)#1}, future > > > | | | | = transport::cql_server::connection::process_request > | | | | = do_until_continued > | | | | = do_void_futurize_apply(transport::cql_server::connection::process()::{l= ambda()#1}&, transport::cql_server::connection::process()::{lambda()#2}&&, = promise<>)::{lambda(future<>)#1}, promise<> > > | | | | = do_void_futurize_apply(transport::cql_server::connection::process()::{l= ambda()#1}&, transport::cql_server::connection::process()::{lambda()#2}&&, = promise<>)::{lambda(future<>)#1}, promise<> > > | | | | = 0x6140000c3000 > | | | | =20 > | | | --48.33%-- out_of_line_= wait_on_bit > | | | block_truncat= e_page > | | | xfs_setattr_s= ize > | | | xfs_vn_setattr > | | | notify_change > | | | do_truncate > | | | do_sys_ftrunc= ate.constprop.15 > | | | sys_ftruncate > | | | entry_SYSCALL= _64_fastpath > | | | __GI___ftrunc= ate64 > | | | syscall_work_= queue::work_item_returning, posix_file_impl::sta= t()::{lambda()#1}>::process > | | | | =20 > | | | |--13.79%-- 0= x7f4ad29ff700 > | | | | =20 > | | | |--13.79%-- 0= x7f4acdbff700 > | | | | =20 > | | | |--12.07%-- 0= x7f4ad05ff700 > | | | | =20 > | | | |--12.07%-- 0= x7f4acedff700 > | | | | =20 > | | | |--10.34%-- 0= x7f4ad0bff700 > | | | | =20 > | | | |--6.90%-- 0x= 7f4ad2fff700 > | | | | =20 > | | | |--6.90%-- 0x= 7f4ad11ff700 > | | | | =20 > | | | |--6.90%-- 0x= 7f4acf9ff700 > | | | | =20 > | | | |--6.90%-- 0x= 7f4acf3ff700 > | | | | =20 > | | | |--6.90%-- 0x= 7f4ace7ff700 > | | | | =20 > | | | |--1.72%-- 0x= 7f4ad17ff700 > | | | | =20 > | | | --1.72%-- 0x= 7f4aca5ff700 > | | | =20 > | | --28.69%-- __down > | | down > | | xfs_buf_lock > | | _xfs_buf_find > | | xfs_buf_get_map > | | | =20 > | | |--97.14%-- xfs_buf_read= _map > | | | xfs_trans_rea= d_buf_map > | | | | =20 > | | | |--98.04%-- x= fs_read_agf > | | | | xf= s_alloc_read_agf > | | | | xf= s_alloc_fix_freelist > | | | | | = =20 > | | | | |-= -93.00%-- xfs_free_extent > | | | | | = xfs_bmap_finish > | | | | | = xfs_itruncate_extents > | | | | | = | =20 > | | | | | = |--87.10%-- xfs_inactive_truncate > | | | | | = | xfs_inactive > | | | | | = | xfs_fs_evict_inode > | | | | | = | evict > | | | | | = | iput > | | | | | = | __dentry_kill > | | | | | = | dput > | | | | | = | __fput > | | | | | = | ____fput > | | | | | = | task_work_run > | | | | | = | do_notify_resume > | | | | | = | int_signal > | | | | | = | __libc_close > | | | | | = | std::experimental::fundamentals_v1::bad_optional_access= ::~bad_optional_access > | | | | | = | =20 > | | | | | = --12.90%-- xfs_setattr_size > | | | | | = xfs_vn_setattr > | | | | | = notify_change > | | | | | = do_truncate > | | | | | = do_sys_ftruncate.constprop.15 > | | | | | = sys_ftruncate > | | | | | = entry_SYSCALL_64_fastpath > | | | | | = | =20 > | | | | | = --100.00%-- __GI___ftruncate64 > | | | | | = syscall_work_queue::work_item_returning, posix_file_impl::stat()::{lambda()#1}>::process > | | | | | = | =20 > | | | | | = |--20.00%-- 0x7f4ad0bff700 > | | | | | = | =20 > | | | | | = |--20.00%-- 0x7f4acedff700 > | | | | | = | =20 > | | | | | = |--10.00%-- 0x7f4ad2fff700 > | | | | | = | =20 > | | | | | = |--10.00%-- 0x7f4ad17ff700 > | | | | | = | =20 > | | | | | = |--10.00%-- 0x7f4ad11ff700 > | | | | | = | =20 > | | | | | = |--10.00%-- 0x7f4ad05ff700 > | | | | | = | =20 > | | | | | = |--10.00%-- 0x7f4acf3ff700 > | | | | | = | =20 > | | | | | = --10.00%-- 0x7f4acdbff700 > | | | | | = =20 > | | | | -= -7.00%-- xfs_alloc_vextent > | | | | = xfs_bmap_btalloc > | | | | = xfs_bmap_alloc > | | | | = xfs_bmapi_write > | | | | = xfs_iomap_write_direct > | | | | = __xfs_get_blocks > | | | | = xfs_get_blocks_direct > | | | | = do_blockdev_direct_IO > | | | | = __blockdev_direct_IO > | | | | = xfs_vm_direct_IO > | | | | = xfs_file_dio_aio_write > | | | | = xfs_file_write_iter > | | | | = aio_run_iocb > | | | | = do_io_submit > | | | | = sys_io_submit > | | | | = entry_SYSCALL_64_fastpath > | | | | = io_submit > | | | | = 0x46d98a > | | | | =20 > | | | --1.96%-- xf= s_read_agi > | | | xf= s_iunlink_remove > | | | xf= s_ifree > | | | xf= s_inactive_ifree > | | | xf= s_inactive > | | | xf= s_fs_evict_inode > | | | ev= ict > | | | ip= ut > | | | __= dentry_kill > | | | dp= ut > | | | __= fput > | | | __= __fput > | | | ta= sk_work_run > | | | do= _notify_resume > | | | in= t_signal > | | | __= libc_close > | | | st= d::experimental::fundamentals_v1::bad_optional_access::~bad_optional_access > | | | =20 > | | --2.86%-- xfs_trans_get= _buf_map > | | xfs_btree_get= _bufl > | | xfs_bmap_exte= nts_to_btree > | | xfs_bmap_add_= extent_hole_real > | | xfs_bmapi_wri= te > | | xfs_iomap_wri= te_direct > | | __xfs_get_blo= cks > | | xfs_get_block= s_direct > | | do_blockdev_d= irect_IO > | | __blockdev_di= rect_IO > | | xfs_vm_direct= _IO > | | xfs_file_dio_= aio_write > | | xfs_file_writ= e_iter > | | aio_run_iocb > | | do_io_submit > | | sys_io_submit > | | entry_SYSCALL= _64_fastpath > | | io_submit > | | 0x46d98a > | | =20 > | |--13.48%-- eventfd_ctx_read > | | eventfd_read > | | __vfs_read > | | vfs_read > | | sys_read > | | entry_SYSCALL_64_fastpath > | | 0x7f4ade6f754d > | | smp_message_queue::respond > | | 0xffffffffffffffff > | | =20 > | |--7.83%-- md_flush_request > | | raid0_make_request > | | md_make_request > | | generic_make_request > | | submit_bio > | | | =20 > | | |--92.54%-- submit_bio_wait > | | | blkdev_issue_flush > | | | xfs_blkdev_issue_flush > | | | xfs_file_fsync > | | | vfs_fsync_range > | | | do_fsync > | | | sys_fdatasync > | | | entry_SYSCALL_64_fastpath > | | | | =20 > | | | --100.00%-- 0x7f4ade421= 2ad > | | | syscall_work_= queue::work_item_returning, posix_file_impl::flush()::{= lambda()#1}>::process > | | | 0x6010000c3ec0 > | | | =20 > | | --7.46%-- _xfs_buf_ioapply > | | xfs_buf_submit > | | xlog_bdstrat > | | xlog_sync > | | xlog_state_release_iclog > | | | =20 > | | |--73.33%-- _xfs_log_for= ce_lsn > | | | xfs_file_fsync > | | | vfs_fsync_ran= ge > | | | do_fsync > | | | sys_fdatasync > | | | entry_SYSCALL= _64_fastpath > | | | | =20 > | | | --100.00%-- = 0x7f4ade4212ad > | | | sy= scall_work_queue::work_item_returning, posix_file_impl:= :flush()::{lambda()#1}>::process > | | | 0x= 6080000c3ec0 > | | | =20 > | | --26.67%-- _xfs_log_for= ce > | | xfs_log_force > | | xfs_buf_lock > | | _xfs_buf_find > | | xfs_buf_get_m= ap > | | xfs_trans_get= _buf_map > | | xfs_btree_get= _bufl > | | xfs_bmap_exte= nts_to_btree > | | xfs_bmap_add_= extent_hole_real > | | xfs_bmapi_wri= te > | | xfs_iomap_wri= te_direct > | | __xfs_get_blo= cks > | | xfs_get_block= s_direct > | | do_blockdev_d= irect_IO > | | __blockdev_di= rect_IO > | | xfs_vm_direct= _IO > | | xfs_file_dio_= aio_write > | | xfs_file_writ= e_iter > | | aio_run_iocb > | | do_io_submit > | | sys_io_submit > | | entry_SYSCALL= _64_fastpath > | | io_submit > | | 0x46d98a > | | =20 > | |--5.53%-- _xfs_log_force_lsn > | | | =20 > | | |--80.28%-- xfs_file_fsync > | | | vfs_fsync_range > | | | do_fsync > | | | sys_fdatasync > | | | entry_SYSCALL_64_fastpath > | | | | =20 > | | | --100.00%-- 0x7f4ade421= 2ad > | | | syscall_work_= queue::work_item_returning, posix_file_impl::flush()::{= lambda()#1}>::process > | | | | =20 > | | | |--97.92%-- 0= x60d0000c3ec0 > | | | | =20 > | | | |--1.04%-- 0x= 6020000c3ec0 > | | | | =20 > | | | --1.04%-- 0x= 600000557ec0 > | | | =20 > | | --19.72%-- xfs_dir_fsync > | | vfs_fsync_range > | | do_fsync > | | sys_fdatasync > | | entry_SYSCALL_64_fastpath > | | | =20 > | | --100.00%-- 0x7f4ade421= 2ad > | | syscall_work_= queue::work_item_returning, posix_file_impl::flush()::{= lambda()#1}>::process > | | 0x6040000c3ec0 > | | =20 > | |--1.25%-- rwsem_down_read_failed > | | call_rwsem_down_read_failed > | | | =20 > | | |--90.62%-- xfs_ilock > | | | | =20 > | | | |--86.21%-- xfs_ilock_da= ta_map_shared > | | | | __xfs_get_blo= cks > | | | | xfs_get_block= s_direct > | | | | do_blockdev_d= irect_IO > | | | | __blockdev_di= rect_IO > | | | | xfs_vm_direct= _IO > | | | | xfs_file_dio_= aio_write > | | | | xfs_file_writ= e_iter > | | | | aio_run_iocb > | | | | do_io_submit > | | | | sys_io_submit > | | | | entry_SYSCALL= _64_fastpath > | | | | | =20 > | | | | --100.00%-- = io_submit > | | | | 0x= 46d98a > | | | | =20 > | | | |--6.90%-- xfs_file_fsync > | | | | vfs_fsync_ran= ge > | | | | do_fsync > | | | | sys_fdatasync > | | | | entry_SYSCALL= _64_fastpath > | | | | 0x7f4ade4212ad > | | | | syscall_work_= queue::work_item_returning, posix_file_impl::flush()::{= lambda()#1}>::process > | | | | 0x6090000c3ec0 > | | | | =20 > | | | --6.90%-- xfs_dir_fsync > | | | vfs_fsync_ran= ge > | | | do_fsync > | | | sys_fdatasync > | | | entry_SYSCALL= _64_fastpath > | | | 0x7f4ade4212ad > | | | syscall_work_= queue::work_item_returning, posix_file_impl::flush()::{= lambda()#1}>::process > | | | 0x6070000c3ec0 > | | | =20 > | | --9.38%-- xfs_log_commit_cil > | | __xfs_trans_commit > | | xfs_trans_commit > | | | =20 > | | |--33.33%-- xfs_setattr_= size > | | | xfs_vn_setattr > | | | notify_change > | | | do_truncate > | | | do_sys_ftrunc= ate.constprop.15 > | | | sys_ftruncate > | | | entry_SYSCALL= _64_fastpath > | | | __GI___ftrunc= ate64 > | | | syscall_work_= queue::work_item_returning, posix_file_impl::sta= t()::{lambda()#1}>::process > | | | 0x7f4acedff700 > | | | =20 > | | |--33.33%-- xfs_vn_updat= e_time > | | | file_update_t= ime > | | | xfs_file_aio_= write_checks > | | | xfs_file_dio_= aio_write > | | | xfs_file_writ= e_iter > | | | aio_run_iocb > | | | do_io_submit > | | | sys_io_submit > | | | entry_SYSCALL= _64_fastpath > | | | io_submit > | | | 0x46d98a > | | | =20 > | | --33.33%-- xfs_bmap_add= _attrfork > | | xfs_attr_set > | | xfs_initxattrs > | | security_inod= e_init_security > | | xfs_init_secu= rity > | | xfs_generic_c= reate > | | xfs_vn_mknod > | | xfs_vn_create > | | vfs_create > | | path_openat > | | do_filp_open > | | do_sys_open > | | sys_open > | | entry_SYSCALL= _64_fastpath > | | 0x7f4ade6f7cdd > | | syscall_work_= queue::work_item_returning, reactor::open_file_dma(basi= c_sstring, open_flags, file_open_options)::{lambda= ()#1}>::process > | | 0xfffffffffff= fffff > | | =20 > | |--0.97%-- rwsem_down_write_failed > | | call_rwsem_down_write_failed > | | xfs_ilock > | | xfs_vn_update_time > | | file_update_time > | | xfs_file_aio_write_checks > | | xfs_file_dio_aio_write > | | xfs_file_write_iter > | | aio_run_iocb > | | do_io_submit > | | sys_io_submit > | | entry_SYSCALL_64_fastpath > | | io_submit > | | 0x46d98a > | | =20 > | |--0.51%-- xlog_cil_force_lsn > | | | =20 > | | |--92.31%-- _xfs_log_force_lsn > | | | | =20 > | | | |--91.67%-- xfs_file_fsy= nc > | | | | vfs_fsync_ran= ge > | | | | do_fsync > | | | | sys_fdatasync > | | | | entry_SYSCALL= _64_fastpath > | | | | 0x7f4ade4212ad > | | | | syscall_work_= queue::work_item_returning, posix_file_impl::flush()::{= lambda()#1}>::process > | | | | 0x60b0000c3ec0 > | | | | =20 > | | | --8.33%-- xfs_dir_fsync > | | | vfs_fsync_ran= ge > | | | do_fsync > | | | sys_fdatasync > | | | entry_SYSCALL= _64_fastpath > | | | 0x7f4ade4212ad > | | | syscall_work_= queue::work_item_returning, posix_file_impl::flush()::{= lambda()#1}>::process > | | | 0x60d0000c3ec0 > | | | =20 > | | --7.69%-- _xfs_log_force > | | xfs_log_force > | | xfs_buf_lock > | | _xfs_buf_find > | | xfs_buf_get_map > | | xfs_trans_get_buf_map > | | xfs_btree_get_bufl > | | xfs_bmap_extents_to_btree > | | xfs_bmap_add_extent_hole= _real > | | xfs_bmapi_write > | | xfs_iomap_write_direct > | | __xfs_get_blocks > | | xfs_get_blocks_direct > | | do_blockdev_direct_IO > | | __blockdev_direct_IO > | | xfs_vm_direct_IO > | | xfs_file_dio_aio_write > | | xfs_file_write_iter > | | aio_run_iocb > | | do_io_submit > | | sys_io_submit > | | entry_SYSCALL_64_fastpath > | | io_submit > | | 0x46d98a > | --0.04%-- [...] > | =20 > --3.82%-- preempt_schedule_common > | =20 > |--99.02%-- _cond_resched > | | =20 > | |--41.58%-- wait_for_completion > | | | =20 > | | |--66.67%-- flush_work > | | | xlog_cil_forc= e_lsn > | | | | =20 > | | | |--96.43%-- _= xfs_log_force_lsn > | | | | | = =20 > | | | | |-= -77.78%-- xfs_file_fsync > | | | | | = vfs_fsync_range > | | | | | = do_fsync > | | | | | = sys_fdatasync > | | | | | = entry_SYSCALL_64_fastpath > | | | | | = 0x7f4ade4212ad > | | | | | = syscall_work_queue::work_item_returning, posix= _file_impl::flush()::{lambda()#1}>::process > | | | | | = 0x6030000c3ec0 > | | | | | = =20 > | | | | -= -22.22%-- xfs_dir_fsync > | | | | = vfs_fsync_range > | | | | = do_fsync > | | | | = sys_fdatasync > | | | | = entry_SYSCALL_64_fastpath > | | | | = | =20 > | | | | = --100.00%-- 0x7f4ade4212ad > | | | | = syscall_work_queue::work_item_returning, posix_file_impl::flush()::{lambda()#1}>::process > | | | | = 0x6030000c3ec0 > | | | | =20 > | | | --3.57%-- _x= fs_log_force > | | | xf= s_log_force > | | | xf= s_buf_lock > | | | _x= fs_buf_find > | | | xf= s_buf_get_map > | | | xf= s_trans_get_buf_map > | | | xf= s_btree_get_bufl > | | | xf= s_bmap_extents_to_btree > | | | xf= s_bmap_add_extent_hole_real > | | | xf= s_bmapi_write > | | | xf= s_iomap_write_direct > | | | __= xfs_get_blocks > | | | xf= s_get_blocks_direct > | | | do= _blockdev_direct_IO > | | | __= blockdev_direct_IO > | | | xf= s_vm_direct_IO > | | | xf= s_file_dio_aio_write > | | | xf= s_file_write_iter > | | | ai= o_run_iocb > | | | do= _io_submit > | | | sy= s_io_submit > | | | en= try_SYSCALL_64_fastpath > | | | io= _submit > | | | 0x= 46d98a > | | | =20 > | | --33.33%-- submit_bio_w= ait > | | blkdev_issue_= flush > | | xfs_blkdev_is= sue_flush > | | xfs_file_fsync > | | vfs_fsync_ran= ge > | | do_fsync > | | sys_fdatasync > | | entry_SYSCALL= _64_fastpath > | | | =20 > | | --100.00%-- = 0x7f4ade4212ad > | | sy= scall_work_queue::work_item_returning, posix_file_impl:= :flush()::{lambda()#1}>::process > | | 0x= 6030000c3ec0 > | | =20 > | |--33.66%-- flush_work > | | xlog_cil_force_lsn > | | | =20 > | | |--97.06%-- _xfs_log_for= ce_lsn > | | | | =20 > | | | |--78.79%-- x= fs_file_fsync > | | | | vf= s_fsync_range > | | | | do= _fsync > | | | | sy= s_fdatasync > | | | | en= try_SYSCALL_64_fastpath > | | | | 0x= 7f4ade4212ad > | | | | sy= scall_work_queue::work_item_returning, posix_file_impl:= :flush()::{lambda()#1}>::process > | | | | 0x= 6030000c3ec0 > | | | | =20 > | | | --21.21%-- x= fs_dir_fsync > | | | vf= s_fsync_range > | | | do= _fsync > | | | sy= s_fdatasync > | | | en= try_SYSCALL_64_fastpath > | | | | = =20 > | | | -= -100.00%-- 0x7f4ade4212ad > | | | = syscall_work_queue::work_item_returning, posix= _file_impl::flush()::{lambda()#1}>::process > | | | = 0x6030000c3ec0 > | | | =20 > | | --2.94%-- _xfs_log_force > | | xfs_log_force > | | xfs_buf_lock > | | _xfs_buf_find > | | xfs_buf_get_m= ap > | | xfs_trans_get= _buf_map > | | xfs_btree_get= _bufl > | | xfs_bmap_exte= nts_to_btree > | | xfs_bmap_add_= extent_hole_real > | | xfs_bmapi_wri= te > | | xfs_iomap_wri= te_direct > | | __xfs_get_blo= cks > | | xfs_get_block= s_direct > | | do_blockdev_d= irect_IO > | | __blockdev_di= rect_IO > | | xfs_vm_direct= _IO > | | xfs_file_dio_= aio_write > | | xfs_file_writ= e_iter > | | aio_run_iocb > | | do_io_submit > | | sys_io_submit > | | entry_SYSCALL= _64_fastpath > | | io_submit > | | 0x46d98a > | | =20 > | |--13.86%-- lock_sock_nested > | | | =20 > | | |--78.57%-- tcp_sendmsg > | | | inet_sendmsg > | | | sock_sendmsg > | | | SYSC_sendto > | | | sys_sendto > | | | entry_SYSCALL= _64_fastpath > | | | __libc_send > | | | _ZN12continua= tionIZN6futureIJmEE4thenIZN7reactor14write_all_partER17pollable_fd_statePKv= mmEUlmE_S0_IJEEEET0_OT_EUlSC_E_JmEE3runEv > | | | | =20 > | | | |--36.36%-- 0= x7f4ad6bf8de0 > | | | | =20 > | | | |--9.09%-- 0x4 > | | | | =20 > | | | |--9.09%-- 0x= 7f4adadf8de0 > | | | | =20 > | | | |--9.09%-- 0x= 7f4ada1f8de0 > | | | | =20 > | | | |--9.09%-- 0x= 7f4ad89f8de0 > | | | | =20 > | | | |--9.09%-- 0x= 7f4ad83f8de0 > | | | | =20 > | | | |--9.09%-- 0x= 7f4ad4df8de0 > | | | | =20 > | | | --9.09%-- 0x= 7f4ad35f8de0 > | | | =20 > | | --21.43%-- tcp_recvmsg > | | inet_recvmsg > | | sock_recvmsg > | | sock_read_iter > | | __vfs_read > | | vfs_read > | | sys_read > | | entry_SYSCALL= _64_fastpath > | | 0x7f4ade6f754d > | | reactor::read= _some > | | | =20 > | | |--66.67%-- _= ZN12continuationIZN6futureIJEE4thenIZZN7service13storage_proxy22send_to_liv= e_endpointsEmENKUlRSt4pairIK13basic_sstringIcjLj15EESt6vectorIN3gms12inet_a= ddressESaISB_EEEE_clESF_EUlvE_S1_EET0_OT_EUlSK_E_JEE3runEv > | | | re= actor::del_timer > | | | 0x= 6160000e2040 > | | | =20 > | | --33.33%-- c= ontinuation future<>::then_wrapped future<>::finally(seastar::gate&, transport::cql_serve= r::connection::process()::{lambda()#2}::operator()() const::{lambda()#1}&&)= ::{lambda()#1}>(seastar::gate&)::{lambda(future<>)#1}::operator()(future<>)= ::{lambda(seastar::gate)#1}, future<> >(seastar::gate&)::{lambda(seastar::g= ate&)#1}>::run > | | re= actor::del_timer > | | 0x= 6030000e2040 > | | =20 > | |--3.96%-- generic_make_request_che= cks > | | generic_make_request > | | submit_bio > | | do_blockdev_direct_IO > | | __blockdev_direct_IO > | | xfs_vm_direct_IO > | | xfs_file_dio_aio_write > | | xfs_file_write_iter > | | aio_run_iocb > | | do_io_submit > | | sys_io_submit > | | entry_SYSCALL_64_fastpath > | | io_submit > | | 0x46d98a > | | =20 > | |--3.96%-- kmem_cache_alloc_node > | | __alloc_skb > | | sk_stream_alloc_skb > | | tcp_sendmsg > | | inet_sendmsg > | | sock_sendmsg > | | SYSC_sendto > | | sys_sendto > | | entry_SYSCALL_64_fastpath > | | __libc_send > | | _ZN12continuationIZN6fut= ureIJmEE4thenIZN7reactor14write_all_partER17pollable_fd_statePKvmmEUlmE_S0_= IJEEEET0_OT_EUlSC_E_JmEE3runEv > | | | =20 > | | |--25.00%-- 0x7f4ad9bf8d= e0 > | | | =20 > | | |--25.00%-- 0x7f4ad7df8d= e0 > | | | =20 > | | |--25.00%-- 0x7f4ad77f8d= e0 > | | | =20 > | | --25.00%-- 0x7f4ad59f8d= e0 > | | =20 > | |--0.99%-- unmap_underlying_metadata > | | do_blockdev_direct_IO > | | __blockdev_direct_IO > | | xfs_vm_direct_IO > | | xfs_file_dio_aio_write > | | xfs_file_write_iter > | | aio_run_iocb > | | do_io_submit > | | sys_io_submit > | | entry_SYSCALL_64_fastpath > | | io_submit > | | 0x46d98a > | | =20 > | |--0.99%-- __kmalloc_node_track_cal= ler > | | __kmalloc_reserve.isra.32 > | | __alloc_skb > | | sk_stream_alloc_skb > | | tcp_sendmsg > | | inet_sendmsg > | | sock_sendmsg > | | SYSC_sendto > | | sys_sendto > | | entry_SYSCALL_64_fastpath > | | __libc_send > | | _ZN12continuationIZN6fut= ureIJmEE4thenIZN7reactor14write_all_partER17pollable_fd_statePKvmmEUlmE_S0_= IJEEEET0_OT_EUlSC_E_JmEE3runEv > | | 0x7f4ad6bf8de0 > | | =20 > | --0.99%-- task_work_run > | do_notify_resume > | int_signal > | __libc_close > | std::experimental::funda= mentals_v1::bad_optional_access::~bad_optional_access > | =20 > --0.98%-- __cond_resched_softirq > release_sock > tcp_sendmsg > inet_sendmsg > sock_sendmsg > SYSC_sendto > sys_sendto > entry_SYSCALL_64_fastpath > __libc_send > _ZN12continuationIZN6futureIJmEE4th= enIZN7reactor14write_all_partER17pollable_fd_statePKvmmEUlmE_S0_IJEEEET0_OT= _EUlSC_E_JmEE3runEv > 0x7f4ada1f8de0 >=20 >=20 >=20 > # > # (For a higher level overview, try: perf report --sort comm,dso) > # > [164814.835933] CPU: 22 PID: 48042 Comm: scylla Tainted: G E = 4.2.6-200.fc22.x86_64 #1 > [164814.835936] Hardware name: Xen HVM domU, BIOS 4.2.amazon 05/06/2015 > [164814.835937] 0000000000000000 00000000a8713b7a ffff8802fb977ab8 fffff= fff817729ea > [164814.835941] 0000000000000000 ffff88076a69f780 ffff8802fb977ad8 fffff= fffa03217a6 > [164814.835946] ffff88077119bcb0 0000000000000000 ffff8802fb977b08 fffff= fffa034e749 > [164814.835951] Call Trace: > [164814.835954] [] dump_stack+0x45/0x57 > [164814.835971] [] xfs_buf_stale+0x26/0x80 [xfs] > [164814.835989] [] xfs_trans_binval+0x79/0x100 [xfs] > [164814.836001] [] xfs_bmap_btree_to_extents+0x12b/0x1= a0 [xfs] > [164814.836012] [] xfs_bunmapi+0x967/0x9f0 [xfs] > [164814.836027] [] xfs_itruncate_extents+0x10e/0x220 [= xfs] > [164814.836044] [] ? kmem_zone_alloc+0x5a/0xe0 [xfs] > [164814.836084] [] xfs_inactive_truncate+0x99/0x110 [x= fs] > [164814.836120] [] xfs_inactive+0x102/0x120 [xfs] > [164814.836135] [] xfs_fs_evict_inode+0x6f/0xa0 [xfs] > [164814.836138] [] evict+0xa6/0x170 > [164814.836140] [] iput+0x196/0x220 > [164814.836147] [] __dentry_kill+0x174/0x1c0 > [164814.836150] [] dput+0x11b/0x200 > [164814.836155] [] __fput+0x172/0x1e0 > [164814.836158] [] ____fput+0xe/0x10 > [164814.836161] [] task_work_run+0x85/0xb0 > [164814.836164] [] do_notify_resume+0x8d/0x90 > [164814.836167] [] int_signal+0x12/0x17 > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From cmaiolino@redhat.com Mon Nov 30 08:26:28 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B959F7F37 for ; Mon, 30 Nov 2015 08:26:28 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id A57CA304039 for ; Mon, 30 Nov 2015 06:26:28 -0800 (PST) X-ASG-Debug-ID: 1448893587-04cbb0605b2c92d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id gsRZPf6QLQp2VuYN (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 06:26:27 -0800 (PST) X-Barracuda-Envelope-From: cmaiolino@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id EC0A2C0B7AC8 for ; Mon, 30 Nov 2015 14:26:26 +0000 (UTC) Received: from redhat.com (vpn-62-205.rdu2.redhat.com [10.10.62.205]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAUEQMhH020223 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 30 Nov 2015 09:26:25 -0500 Date: Mon, 30 Nov 2015 15:26:22 +0100 From: Carlos Maiolino To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs_io: implement 'inode' command V5 Message-ID: <20151130142622.GA27492@redhat.com> X-ASG-Orig-Subj: Re: [PATCH] xfs_io: implement 'inode' command V5 Mail-Followup-To: Brian Foster , xfs@oss.sgi.com References: <1448552795-8794-1-git-send-email-cmaiolino@redhat.com> <20151130132217.GA24765@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151130132217.GA24765@bfoster.bfoster> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448893587 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 > > I think we want "n:v" here since -n expects an argument, even if we > don't process the arg here. Using getopt() to handle the -n argument, will make the inode command having 2 different entry points for the same argument, i.e. the inode number. One as an argument for -n, and another as an argument for the command itself, like: inode -n inode We need to handle [num] as a stand-alone argument anyway, so, I just don't think we need to handle the same argument in different ways, which I achieved by not using [num] as a getopt() argument, but instead, handling [num] 'manually' according to the options used in getopt(). Not sure if I could be clear or get things more confused :) > > + if (ret_next && verbose) > > + return command_usage(&inode_cmd); > > + > > Why is this not supported? Hmm, I see that -n returns an inode number > and otherwise we print 0/1 or : with -v. Perhaps this would > be easier if the command semantics/output were more consistent. E.g., > > "inode": print 0/1 based on largest inode size > "inode -v": print : of largest inode > "inode ": print if inode exists > "inode -v ": print : if inode exists I thought about this, but I decided to not do it because the command looks a bit redundant for me when 'inode "inode -n ": print if next inode exists > "inode -nv ": print : if next inode exists Just FYI, if the 'next inode' doesn't exist (i.e. using the last fs inode as argument), the ioctl will return 0 in bstat.bs_ino, which, I choose to leave it as-is, and adding this observation to the man page, instead of returning a messag like "no more inodes in the fs". I decided to leave it as-is, because for usage would be easier to parse a '0' return value from -n argument, than parsing an error message which has the same meaning of a zeroed return. Anyway, I'm going add -v to the another options, just please take a look at my replies regarding the 'inode -n' return value and the reason I didn't use getopt() to handle -n argument and if you agree or not, so I'll rewrite the patch to v6 based on this. Cheers o> -- Carlos From avi@cloudius-systems.com Mon Nov 30 08:29:19 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8B1637F3F for ; Mon, 30 Nov 2015 08:29:19 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5A66C304048 for ; Mon, 30 Nov 2015 06:29:19 -0800 (PST) X-ASG-Debug-ID: 1448893756-04cbb0605d2c93c0001-NocioJ Received: from mail-wm0-f50.google.com (mail-wm0-f50.google.com [74.125.82.50]) by cuda.sgi.com with ESMTP id 2irutrQEP35xt47r (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 30 Nov 2015 06:29:16 -0800 (PST) X-Barracuda-Envelope-From: avi@cloudius-systems.com X-Barracuda-Apparent-Source-IP: 74.125.82.50 Received: by wmuu63 with SMTP id u63so131862700wmu.0 for ; Mon, 30 Nov 2015 06:29:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=scylladb-com.20150623.gappssmtp.com; s=20150623; h=subject:to:references:cc:from:message-id:date:user-agent :mime-version:in-reply-to:content-type:content-transfer-encoding; bh=HIWiENc7LBxY8Xvrb3IS2p9nNCXEBP5N3IktuYkt01U=; b=U/hrY6SEMgzW59SLYSf3ZwnvZEVw8/9ieB2YWLvvkKn68hr6QpZmT9D9CqLPw83nXN At6hb66KzkX+Us4BGmX+GgiQ3X9LYhXqXTdMqPo5Coe1ZpC1KhW2gfxrzBNc4X/RCL7c z5I30I//Jwr53V2Or/R/L86H3QXPL6i7QtXGh4xMIMoSp8Aldf+cRUSVi9xJcR4ygkdy nyEY5IfvGeGu5dZfudD+tQLRNpAyQ9KcMK9UnTb7cRgQKIiCV7qux+ddVlSmk/mVlMKc RdpG2dqDyIn9MU+pUfZGjnJ9iLoD2SSxGSF0ezZ31twRAYrCDT8TXUHjzF22rnHN2D0j vEEQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-type :content-transfer-encoding; bh=HIWiENc7LBxY8Xvrb3IS2p9nNCXEBP5N3IktuYkt01U=; b=muITSD4FbJA4YPR6SGWQasfwx1aNuOdNvS7xbPJHV+xL9O9Z+Xl8bCB0llV9/j8crx XLSPjbsU+6FBoNitwDqRrKyVmBCRjX4C293SP/d3qphwpF9Lv3B53gpf3bhGtEj57gYL qdIvXP+O7Vamdwfmwm7rd1zGua7UDQWBt2Qi7vl1OSwtnc2t3C4wc5BujZCXMj/Wqnia uGH/e5CBMjfAvBntv/uc4AOexPEING3DW5d8HmQ5Mactux/DcLlbcdfewSanPgmxTko/ 6BWR5rb523I8C/gDKVzO+syvaBscfvIU1DZ2OVGYcR9c/iosIT2XnKab46tCJtWSCiAq UQbA== X-Gm-Message-State: ALoCoQl+6LKTBDMDq3rUqYoPgEGbIjIoWULnAj8N5MTf480Zh8VDZUUwwGfROC8Dw0h0bESUSkIT X-Received: by 10.28.101.195 with SMTP id z186mr30330339wmb.52.1448893755861; Mon, 30 Nov 2015 06:29:15 -0800 (PST) Received: from avi.cloudius-systems.com ([37.142.229.250]) by smtp.googlemail.com with ESMTPSA id u205sm21575008wmb.12.2015.11.30.06.29.14 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 30 Nov 2015 06:29:14 -0800 (PST) Subject: Re: sleeps and waits during io_submit To: Brian Foster , Glauber Costa X-ASG-Orig-Subj: Re: sleeps and waits during io_submit References: <20151130141000.GC24765@bfoster.bfoster> Cc: xfs@oss.sgi.com, david@fromorbit.com From: Avi Kivity Message-ID: <565C5D39.8080300@scylladb.com> Date: Mon, 30 Nov 2015 16:29:13 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151130141000.GC24765@bfoster.bfoster> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail-wm0-f50.google.com[74.125.82.50] X-Barracuda-Start-Time: 1448893756 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24849 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On 11/30/2015 04:10 PM, Brian Foster wrote: >> 2) xfs_buf_lock -> down >> This is one I truly don't understand. What can be causing contention >> in this lock? We never have two different cores writing to the same >> buffer, nor should we have the same core doingCAP_FOWNER so. >> > This is not one single lock. An XFS buffer is the data structure used to > modify/log/read-write metadata on-disk and each buffer has its own lock > to prevent corruption. Buffer lock contention is possible because the > filesystem has bits of "global" metadata that has to be updated via > buffers. > > For example, usually one has multiple allocation groups to maximize > parallelism, but we still have per-ag metadata that has to be tracked > globally with respect to each AG (e.g., free space trees, inode > allocation trees, etc.). Any operation that affects this metadata (e.g., > block/inode allocation) has to lock the agi/agf buffers along with any > buffers associated with the modified btree leaf/node blocks, etc. > > One example in your attached perf traces has several threads looking to > acquire the AGF, which is a per-AG data structure for tracking free > space in the AG. One thread looks like the inode eviction case noted > above (freeing blocks), another looks like a file truncate (also freeing > blocks), and yet another is a block allocation due to a direct I/O > write. Were any of these operations directed to an inode in a separate > AG, they would be able to proceed in parallel (but I believe they would > still hit the same codepaths as far as perf can tell). I guess we can mitigate (but not eliminate) this by creating more allocation groups. What is the default value for agsize? Are there any downsides to decreasing it, besides consuming more memory? Are those locks held around I/O, or just CPU operations, or a mix? From glommer@cloudius-systems.com Mon Nov 30 09:49:34 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E1BCD7F3F for ; Mon, 30 Nov 2015 09:49:34 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id D21AE304067 for ; Mon, 30 Nov 2015 07:49:34 -0800 (PST) X-ASG-Debug-ID: 1448898567-04cb6c535366df0001-NocioJ Received: from mail-lf0-f54.google.com (mail-lf0-f54.google.com [209.85.215.54]) by cuda.sgi.com with ESMTP id Bm6QCkmtmBrpu7eo (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 30 Nov 2015 07:49:28 -0800 (PST) X-Barracuda-Envelope-From: glommer@cloudius-systems.com X-Barracuda-Apparent-Source-IP: 209.85.215.54 Received: by lfdl133 with SMTP id l133so201519125lfd.2 for ; Mon, 30 Nov 2015 07:49:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=scylladb-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=6SWCJ9wogdH2xzk6B0OlF0OZkj5t8SbPSM9rJ7nlxWo=; b=a+T8lWyhzBnk91dqL5l8cLEDF6jbq7c8D5SqEx79Xs9JdcUYhRbOVhOxrpPSZR/bnE Ebtn50WZLhHHEQa+q15MPCHgmvjenkhttGBWLOW97CrzYumWv5H7mTvsoUbNu07RW6bn hLvUtliC2Cb5XA49lpMrcEaaBf/69yp3AmXZXEgToEH7yJ2mZSEm33Ik8QWHQ0CEApRj xOy3W6LKZanWHSqX4u5Ki2xktnPQmvrCinTpEicVnRmDbMuJKP6wiYlTIKPE6TT7jIx1 3+xWQnIomG6CJ/LIbZNFq7Wez6SdkYx3JX6deRnRFZgj5uk4dRplr6PSJ557ZnBbIJMn mn1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=6SWCJ9wogdH2xzk6B0OlF0OZkj5t8SbPSM9rJ7nlxWo=; b=ElAvjHVBBP2crrABOsSKkHUNn175eQhmwPFECqUEOTbkSWWBRShSSKgfpYHGCeigN3 sC2mgoVJjZyFYEokBL3fc9T4quBs2Z4OwH3LizOrUE4jA8nH6GQaXnhMvFP1Ajdd7xn0 LzFee5ykryu/6VDQBYmMI5673sThIFaWlYs65xsTYBQmresK+X+iRe8m1juhT0/pL9UF O1R+BK9Bkocg5qSqPRSjR8IDDRULZAg7MOepz9/xq9QPnwPivfTCiJU4kw+66wPFjWv6 1ciC/CDM6UJwjVt9MOIqSCmVYlGbVXtr5unN6MsuUrcPqDjVvEXtNexuaMPP7U4cz7hu yTAw== X-Gm-Message-State: ALoCoQkg8CVnBKW+QMRjg7dOBorWRwZi9XhKkPDRTHe7sPpDJrY73RcjFl3fBTjzBFIiJjpeTXS0 MIME-Version: 1.0 X-Received: by 10.25.146.201 with SMTP id u192mr12247296lfd.14.1448898567434; Mon, 30 Nov 2015 07:49:27 -0800 (PST) Received: by 10.25.205.133 with HTTP; Mon, 30 Nov 2015 07:49:27 -0800 (PST) In-Reply-To: <20151130141000.GC24765@bfoster.bfoster> References: <20151130141000.GC24765@bfoster.bfoster> Date: Mon, 30 Nov 2015 10:49:27 -0500 Message-ID: Subject: Re: sleeps and waits during io_submit From: Glauber Costa X-ASG-Orig-Subj: Re: sleeps and waits during io_submit To: Brian Foster Cc: xfs@oss.sgi.com, Avi Kivity , david@fromorbit.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lf0-f54.google.com[209.85.215.54] X-Barracuda-Start-Time: 1448898568 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24851 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Hi Brian >> 1) xfs_buf_lock -> xfs_log_force. >> >> I've started wondering what would make xfs_log_force sleep. But then I >> have noticed that xfs_log_force will only be called when a buffer is >> marked stale. Most of the times a buffer is marked stale seems to be >> due to errors. Although that is not my case (more on that), it got me >> thinking that maybe the right thing to do would be to avoid hitting >> this case altogether? >> > > I'm not following where you get the "only if marked stale" part..? It > certainly looks like that's one potential purpose for the call, but this > is called in a variety of other places as well. E.g., forcing the log > via pushing on the ail when it has pinned items is another case. The ail > push itself can originate from transaction reservation, etc., when log > space is needed. In other words, I'm not sure this is something that's > easily controlled from userspace, if at all. Rather, it's a significant > part of the wider state machine the fs uses to manage logging. I understand that in general xfs_log_force can be called from many places. But in our traces the ones we see sleeping are coming from xfs_buf_lock. The code for xfs_buf_lock reads: if (atomic_read(&bp->b_pin_count) && (bp->b_flags & XBF_STALE)) xfs_log_force(bp->b_target->bt_mount, 0); which if I read correctly, will be called only for stale buffers. True thing they happen to be pinned as well, but somehow the stale part caught my attention. It seemed to me from briefly looking that the stale condition was a more "avoidable" one. (keep in mind I am not an awesome XFSer, may be missing something) > >> The file example-stale.txt contains a backtrace of the case where we >> are being marked as stale. It seems to be happening when we convert >> the the inode's extents from unwritten to real. Can this case be >> avoided? I won't pretend I know the intricacies of this, but couldn't >> we be keeping extents from the very beginning to avoid creating stale >> buffers? >> > > This is down in xfs_fs_evict_inode()->xfs_inactive(), which is generally > when an inode is evicted from cache. In this case, it looks like the > inode is unlinked (permanently removed), the extents are being removed > and a bmap btree block is being invalidated as part of that overall > process. I don't think this has anything to do with unwritten extents. > Cool. If the inode is indeed unliked, could that sill be triggering that condition in xfs_buf_lock? I am not even close to fully understanding how XFS manages and/or recycles buffers, but it seems to me that if an inode is going away, there isn't really any reason to contend for its buffers. >> 2) xfs_buf_lock -> down >> This is one I truly don't understand. What can be causing contention >> in this lock? We never have two different cores writing to the same >> buffer, nor should we have the same core doingCAP_FOWNER so. >> > > This is not one single lock. An XFS buffer is the data structure used to > modify/log/read-write metadata on-disk and each buffer has its own lock > to prevent corruption. Buffer lock contention is possible because the > filesystem has bits of "global" metadata that has to be updated via > buffers. I see. Since I hate guessing, is there any way you would recommend for us to probe the system to determine if this contention scenario is indeed the one we are seeing? We usually open a file, write to it from a single core only, sequentially, direct IO only, as well behavedly as we can, with all the effort in the world to be good kids to the extent Santa will bring us presents without us even asking. So we were very puzzled to see contention. Contention for global metadata updates is the best explanation we've had so far, and would be great if we could verify it is indeed the case. > > For example, usually one has multiple allocation groups to maximize > parallelism, but we still have per-ag metadata that has to be tracked > globally with respect to each AG (e.g., free space trees, inode > allocation trees, etc.). Any operation that affects this metadata (e.g., > block/inode allocation) has to lock the agi/agf buffers along with any > buffers associated with the modified btree leaf/node blocks, etc. > > One example in your attached perf traces has several threads looking to > acquire the AGF, which is a per-AG data structure for tracking free > space in the AG. One thread looks like the inode eviction case noted > above (freeing blocks), another looks like a file truncate (also freeing > blocks), and yet another is a block allocation due to a direct I/O > write. Were any of these operations directed to an inode in a separate > AG, they would be able to proceed in parallel (but I believe they would > still hit the same codepaths as far as perf can tell). This is great, great, awesome info Brian. Thanks. We are so far allocating inodes and truncating them when we need a new one, but maybe there is some allocation pattern that is friendlier to the AG? I understand that with such a data structure it may very well be impossible to get rid of all waiting, but we will certainly do all we can to mitigate it. > >> 3) xfs_file_aio_write_checks -> file_update_time -> xfs_vn_update_time >> >> You guys seem to have an interface to avoid that, by setting the >> FMODE_NOCMTIME flag. This is done by issuing the open by handle ioctl, >> which will set this flag for all regular files. That's great, but that >> ioctl required CAP_SYS_ADMIN, which is a big no for us, since we run >> our server as an unprivileged user. I don't understand, however, why >> such an strict check is needed. If we have full rights on the >> filesystem, why can't we issue this operation? In my view, CAP_FOWNER >> should already be enough.I do understand the handles have to be stable >> and a file can have its ownership changed, in which case the previous >> owner would keep the handle valid. Is that the reason you went with >> the most restrictive capability ? > > I'm not familiar enough with the open-by-handle stuff to comment on the > permission constraints. Perhaps Dave or others can comment further on > this bit... > > Brian Thanks again Brian. The pointer to the AG stuff was really helpful. From bfoster@redhat.com Mon Nov 30 10:14:45 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id CEAD77F37 for ; Mon, 30 Nov 2015 10:14:44 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6CBB6AC004 for ; Mon, 30 Nov 2015 08:14:41 -0800 (PST) X-ASG-Debug-ID: 1448900079-04bdf07f082d5f30001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id U9ZYeuhUCuuXsmnB (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 08:14:40 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 62FD28F28B; Mon, 30 Nov 2015 16:14:39 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-132.bos.redhat.com [10.18.41.132]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAUGEcXM026342; Mon, 30 Nov 2015 11:14:39 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id 6FF3712013B; Mon, 30 Nov 2015 11:14:38 -0500 (EST) Date: Mon, 30 Nov 2015 11:14:38 -0500 From: Brian Foster To: Avi Kivity Cc: Glauber Costa , xfs@oss.sgi.com, david@fromorbit.com Subject: Re: sleeps and waits during io_submit Message-ID: <20151130161438.GD24765@bfoster.bfoster> X-ASG-Orig-Subj: Re: sleeps and waits during io_submit References: <20151130141000.GC24765@bfoster.bfoster> <565C5D39.8080300@scylladb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <565C5D39.8080300@scylladb.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448900080 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 30, 2015 at 04:29:13PM +0200, Avi Kivity wrote: > > > On 11/30/2015 04:10 PM, Brian Foster wrote: > >>2) xfs_buf_lock -> down > >>This is one I truly don't understand. What can be causing contention > >>in this lock? We never have two different cores writing to the same > >>buffer, nor should we have the same core doingCAP_FOWNER so. > >> > >This is not one single lock. An XFS buffer is the data structure used to > >modify/log/read-write metadata on-disk and each buffer has its own lock > >to prevent corruption. Buffer lock contention is possible because the > >filesystem has bits of "global" metadata that has to be updated via > >buffers. > > > >For example, usually one has multiple allocation groups to maximize > >parallelism, but we still have per-ag metadata that has to be tracked > >globally with respect to each AG (e.g., free space trees, inode > >allocation trees, etc.). Any operation that affects this metadata (e.g., > >block/inode allocation) has to lock the agi/agf buffers along with any > >buffers associated with the modified btree leaf/node blocks, etc. > > > >One example in your attached perf traces has several threads looking to > >acquire the AGF, which is a per-AG data structure for tracking free > >space in the AG. One thread looks like the inode eviction case noted > >above (freeing blocks), another looks like a file truncate (also freeing > >blocks), and yet another is a block allocation due to a direct I/O > >write. Were any of these operations directed to an inode in a separate > >AG, they would be able to proceed in parallel (but I believe they would > >still hit the same codepaths as far as perf can tell). > > I guess we can mitigate (but not eliminate) this by creating more allocation > groups. What is the default value for agsize? Are there any downsides to > decreasing it, besides consuming more memory? > I suppose so, but I would be careful to check that you actually see contention and test that increasing agcount actually helps. As mentioned, I'm not sure off hand if the perf trace alone would look any different if you have multiple metadata operations in progress on separate AGs. My understanding is that there are diminishing returns to high AG counts and usually 32-64 is sufficient for most storage. Dave might be able to elaborate more on that... (I think this would make a good FAQ entry, actually). The agsize/agcount mkfs-time heuristics change depending on the type of storage. A single AG can be up to 1TB and if the fs is not considered "multidisk" (e.g., no stripe unit/width is defined), 4 AGs is the default up to 4TB. If a stripe unit is set, the agsize/agcount is adjusted depending on the size of the overall volume (see xfsprogs-dev/mkfs/xfs_mkfs.c:calc_default_ag_geometry() for details). > Are those locks held around I/O, or just CPU operations, or a mix? I believe it's a mix of modifications and I/O, though it looks like some of the I/O cases don't necessarily wait on the lock. E.g., the AIL pushing case will trylock and defer to the next list iteration if the buffer is busy. Brian From bfoster@redhat.com Mon Nov 30 10:16:44 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 4E0E87F37 for ; Mon, 30 Nov 2015 10:16:44 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 31E3B304066 for ; Mon, 30 Nov 2015 08:16:44 -0800 (PST) X-ASG-Debug-ID: 1448900202-04cb6c5354686c0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 4S34piFnVR2mf4tA (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 08:16:43 -0800 (PST) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id AA5EF688 for ; Mon, 30 Nov 2015 16:16:42 +0000 (UTC) Received: from bfoster.bfoster (dhcp-41-132.bos.redhat.com [10.18.41.132]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAUGGgdq015138 for ; Mon, 30 Nov 2015 11:16:42 -0500 Received: by bfoster.bfoster (Postfix, from userid 1000) id DD3D112013B; Mon, 30 Nov 2015 11:16:41 -0500 (EST) Date: Mon, 30 Nov 2015 11:16:41 -0500 From: Brian Foster To: xfs@oss.sgi.com Subject: Re: [PATCH] xfs_io: implement 'inode' command V5 Message-ID: <20151130161641.GE24765@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs_io: implement 'inode' command V5 References: <1448552795-8794-1-git-send-email-cmaiolino@redhat.com> <20151130132217.GA24765@bfoster.bfoster> <20151130142622.GA27492@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151130142622.GA27492@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448900203 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Nov 30, 2015 at 03:26:22PM +0100, Carlos Maiolino wrote: > > > > I think we want "n:v" here since -n expects an argument, even if we > > don't process the arg here. > > Using getopt() to handle the -n argument, will make the inode command having 2 > different entry points for the same argument, i.e. the inode number. One as an > argument for -n, and another as an argument for the command itself, like: > > inode -n > inode > > We need to handle [num] as a stand-alone argument anyway, so, I just don't think > we need to handle the same argument in different ways, which I achieved by not > using [num] as a getopt() argument, but instead, handling [num] 'manually' > according to the options used in getopt(). > > Not sure if I could be clear or get things more confused :) > Sure, but I'm just referring to the error case when the user passes -n without an argument. This should return an error but it doesn't at the moment. I'm assuming that using "n:" would ensure the error message is printed without disrupting the other code (e.g., continue to process [num] manually even though "n:" is passed to getopt()). Is that the case? If not, the error could be detected/handled manually as well. Either way, a comment would also be useful here to document the special handling as you note above. > > > > + if (ret_next && verbose) > > > + return command_usage(&inode_cmd); > > > + > > > > Why is this not supported? Hmm, I see that -n returns an inode number > > and otherwise we print 0/1 or : with -v. Perhaps this would > > be easier if the command semantics/output were more consistent. E.g., > > > > "inode": print 0/1 based on largest inode size > > "inode -v": print : of largest inode > > "inode ": print if inode exists > > "inode -v ": print : if inode exists > > I thought about this, but I decided to not do it because the command looks a bit > redundant for me when 'inode number itself, if it exists, makes more sense to have a -v option here too. > Not sure I follow... AFAICT the command semantics change depending on whether an inode number is passed or not (irrespective of -n and -v). If not, we're looking to see if the largest inode is 32-bit or 64-bit. If an inode number is passed, we're checking to see if an inode exists. Brian > > "inode -n ": print if next inode exists > > "inode -nv ": print : if next inode exists > > Just FYI, if the 'next inode' doesn't exist (i.e. using the last fs inode as > argument), the ioctl will return 0 in bstat.bs_ino, which, I choose to leave it > as-is, and adding this observation to the man page, instead of returning a > messag like "no more inodes in the fs". > > I decided to leave it as-is, because for usage would be easier to parse a '0' > return value from -n argument, than parsing an error message which has the same > meaning of a zeroed return. > > > Anyway, I'm going add -v to the another options, just please take a look at my > replies regarding the 'inode -n' return value and the reason I didn't use > getopt() to handle -n argument and if you agree or not, so I'll rewrite the > patch to v6 based on this. > > Cheers o> > > -- > Carlos From spatel@omnifone.com Mon Nov 30 10:52:03 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 98BE17F37 for ; Mon, 30 Nov 2015 10:52:03 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8355E304067 for ; Mon, 30 Nov 2015 08:52:03 -0800 (PST) X-ASG-Debug-ID: 1448902319-04cb6c5352693b0001-NocioJ Received: from mail1.bemta14.messagelabs.com (mail1.bemta14.messagelabs.com [193.109.254.107]) by cuda.sgi.com with ESMTP id ogtnXQmoFHGx6XE5 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 08:52:00 -0800 (PST) X-Barracuda-Envelope-From: spatel@omnifone.com X-Barracuda-Apparent-Source-IP: 193.109.254.107 Received: from [193.109.255.147] by server-3.bemta-14.messagelabs.com id 45/73-25435-FAE7C565; Mon, 30 Nov 2015 16:51:59 +0000 X-Env-Sender: spatel@omnifone.com X-Msg-Ref: server-15.tower-72.messagelabs.com!1448902318!6297943!1 X-Originating-IP: [195.54.58.132] X-StarScan-Received: X-StarScan-Version: 7.19.2; banners=omnifone.com,-,- X-VirusChecked: Checked Received: (qmail 11268 invoked from network); 30 Nov 2015 16:51:58 -0000 Received: from brookgreen.ribob01.net (HELO EXFE1IS02.omnifone.com) (195.54.58.132) by server-15.tower-72.messagelabs.com with AES128-SHA encrypted SMTP; 30 Nov 2015 16:51:58 -0000 Received: from EXBE1IS02.omnifone.com ([::1]) by EXFE1IS02.omnifone.com ([::1]) with mapi id 14.01.0438.000; Mon, 30 Nov 2015 16:51:58 +0000 From: Sandeep Patel To: "xfs@oss.sgi.com" Subject: XFS corruptions Thread-Topic: XFS corruptions X-ASG-Orig-Subj: XFS corruptions Thread-Index: AdErjxENXmHY5tPxRXq2ndhekRd0vA== Date: Mon, 30 Nov 2015 16:51:57 +0000 Deferred-Delivery: Mon, 30 Nov 2015 16:51:00 +0000 Message-ID: <558408F298C8CE4C89D93BD56AB474E8018617B2B3@EXBE1IS02.omnifone.com> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.0.0.156] Content-Type: multipart/alternative; boundary="_000_558408F298C8CE4C89D93BD56AB474E8018617B2B3EXBE1IS02omni_" MIME-Version: 1.0 X-Barracuda-Connect: mail1.bemta14.messagelabs.com[193.109.254.107] X-Barracuda-Start-Time: 1448902319 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.02 X-Barracuda-Spam-Status: No, SCORE=0.02 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE, THREAD_INDEX, THREAD_TOPIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24853 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... 0.00 HTML_MESSAGE BODY: HTML included in message --_000_558408F298C8CE4C89D93BD56AB474E8018617B2B3EXBE1IS02omni_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, We have multiple 22 disk raid 6 arrays using LSI 9280-24i4e raid cards, al= l using enterprise grade drives. The array is setup with physical drive ca= che disabled and mounted using inode64 with nobarriers option in Oracle Li= nux Server release 6.6, kernel version 3.8.13-55.1.5.el6uek.x86_64. We are= suffering from corruptions with xfs_repair unable to permanently fix the = the issues. Output of dmesg from the latest corruption. Pid: 5319, comm: glusterfsd Not tainted 3.8.13-55.1.5.el6uek.x86_64 #2 Call Trace: [] xfs_error_report+0x3f/0x50 [xfs] [] ? xfs_iread_extents+0x86/0x110 [xfs] [] xfs_corruption_error+0x5e/0x90 [xfs] [] xfs_bmap_read_extents+0x3f8/0x450 [xfs] [] ? xfs_iread_extents+0x86/0x110 [xfs] [] ? xfs_iext_realloc_direct+0xae/0x160 [xfs] [] xfs_iread_extents+0x86/0x110 [xfs] [] ? xfs_trans_free_item_desc+0x3c/0x50 [xfs] [] xfs_bmap_last_extent+0x95/0xb0 [xfs] [] xfs_bmap_last_offset+0x66/0xc0 [xfs] [] ? xfs_dir_lookup+0xc3/0x170 [xfs] [] xfs_dir2_isblock+0x26/0x60 [xfs] [] xfs_dir_lookup+0xc3/0x170 [xfs] [] xfs_lookup+0x87/0x110 [xfs] [] ? __d_alloc+0x14d/0x180 [] xfs_vn_lookup+0x54/0xa0 [xfs] [] ? lookup_dcache+0xa3/0xd0 [] lookup_real+0x1d/0x60 [] __lookup_hash+0x38/0x50 [] lookup_slow+0x4e/0xc0 [] path_lookupat+0x201/0x780 [] filename_lookup+0x34/0xc0 [] user_path_at_empty+0x59/0xa0 [] ? user_path_at+0x11/0x20 [] ? vfs_fstatat+0x50/0xb0 [] user_path_at+0x11/0x20 [] sys_linkat+0x78/0x250 [] ? __audit_syscall_exit+0x216/0x2c0 [] system_call_fastpath+0x16/0x1b XFS (sdb): Corruption detected. Unmount and run xfs_repair XFS (sdb): corrupt dinode 6442451040, (btree extents). ffff88042615d000: 42 4d 41 50 00 00 00 fe ff ff ff ff ff ff ff ff BMAP....= ........ XFS (sdb): Internal error xfs_bmap_read_extents(1) at line 1610 of file fs= /xfs/xfs_bmap.c. Caller 0xffffffffa02ed416 What could be causing these issues? Thanks for your help in advanced. ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________ --_000_558408F298C8CE4C89D93BD56AB474E8018617B2B3EXBE1IS02omni_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi,

&n= bsp;

We have= multiple 22 disk raid 6 arrays using LSI 9280-24i4e raid cards, all using= enterprise grade drives. The array is setup with physical drive cache disabled and mounted using inode64 with nobarriers option in = Oracle Linux Server release 6.6, kernel version 3.8.13-55.1.5.el6uek.x86_6= 4. We are suffering from corruptions with xfs_repair unable to permanently= fix the the issues. Output of dmesg from the latest corruption.

Pid: 5319, comm: glusterfsd Not tainted= 3.8.13-55.1.5.el6uek.x86_64 #2
Call Trace:
[<ffffffffa02a3a9f>] xfs_error_re= port+0x3f/0x50 [xfs]
[<ffffffffa02ed416>] ? xfs_iread_= extents+0x86/0x110 [xfs]
[<ffffffffa02a3b0e>] xfs_corrupti= on_error+0x5e/0x90 [xfs]
[<ffffffffa02c7ac8>] xfs_bmap_rea= d_extents+0x3f8/0x450 [xfs]
[<ffffffffa02ed416>] ? xfs_iread_= extents+0x86/0x110 [xfs]
[<ffffffffa02eb94e>] ? xfs_iext_r= ealloc_direct+0xae/0x160 [xfs]
[<ffffffffa02ed416>] xfs_iread_ex= tents+0x86/0x110 [xfs]
[<ffffffffa02fb0cc>] ? xfs_trans_= free_item_desc+0x3c/0x50 [xfs]
[<ffffffffa02c5df5>] xfs_bmap_las= t_extent+0x95/0xb0 [xfs]
[<ffffffffa02c5ef6>] xfs_bmap_las= t_offset+0x66/0xc0 [xfs]
[<ffffffffa02dc123>] ? xfs_dir_lo= okup+0xc3/0x170 [xfs]
[<ffffffffa02dbc96>] xfs_dir2_isb= lock+0x26/0x60 [xfs]
[<ffffffffa02dc123>] xfs_dir_look= up+0xc3/0x170 [xfs]
[<ffffffffa02b6497>] xfs_lookup&#= 43;0x87/0x110 [xfs]
[<ffffffff811a92ed>] ? __d_alloc&= #43;0x14d/0x180
[<ffffffffa02aea84>] xfs_vn_looku= p+0x54/0xa0 [xfs]
[<ffffffff8119db43>] ? lookup_dca= che+0xa3/0xd0
[<ffffffff8119d3ad>] lookup_real&= #43;0x1d/0x60
[<ffffffff8119dba8>] __lookup_has= h+0x38/0x50
[<ffffffff8119dc0e>] lookup_slow&= #43;0x4e/0xc0
[<ffffffff811a1d41>] path_lookupa= t+0x201/0x780
[<ffffffff811a22f4>] filename_loo= kup+0x34/0xc0
[<ffffffff811a35b9>] user_path_at= _empty+0x59/0xa0
[<ffffffff811a3611>] ? user_path_= at+0x11/0x20
[<ffffffff811986c0>] ? vfs_fstata= t+0x50/0xb0
[<ffffffff811a3611>] user_path_at= +0x11/0x20
[<ffffffff811a3698>] sys_linkat&#= 43;0x78/0x250
[<ffffffff810e37e6>] ? __audit_sy= scall_exit+0x216/0x2c0
[<ffffffff815a25d9>] system_call_= fastpath+0x16/0x1b
XFS (sdb): Corruption detected. Unmount= and run xfs_repair
XFS (sdb): corrupt dinode 6442451040, (= btree extents).
ffff88042615d000: 42 4d 41 50 00 00 00 = fe ff ff ff ff ff=20ff ff ff BMAP............
XFS (sdb): Internal error xfs_bmap_read= _extents(1) at line 1610 of file fs/xfs/xfs_bmap.c. Caller 0xffffffffa02ed= 416

What could be causing these issues?

Thanks for your help in advanced.<= /o:p>


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= --_000_558408F298C8CE4C89D93BD56AB474E8018617B2B3EXBE1IS02omni_-- From eflorac@intellique.com Mon Nov 30 11:40:51 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4E6F37F37 for ; Mon, 30 Nov 2015 11:40:51 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 2E2E58F8039 for ; Mon, 30 Nov 2015 09:40:50 -0800 (PST) X-ASG-Debug-ID: 1448905244-04cbb0605c2d1bf0001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id jbhQtI7LAW0vmHlU (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 09:40:44 -0800 (PST) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id 027512CF89; Mon, 30 Nov 2015 12:40:44 -0500 (EST) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail1.g1.pair.com (Postfix) with ESMTPSA id 231FA2CFA6; Mon, 30 Nov 2015 12:40:43 -0500 (EST) Date: Mon, 30 Nov 2015 18:40:48 +0100 From: Emmanuel Florac To: Sandeep Patel Cc: "xfs@oss.sgi.com" Subject: Re: XFS corruptions Message-ID: <20151130184048.3fa123e0@harpe.intellique.com> X-ASG-Orig-Subj: Re: XFS corruptions In-Reply-To: <558408F298C8CE4C89D93BD56AB474E8018617B2B3@EXBE1IS02.omnifone.com> References: <558408F298C8CE4C89D93BD56AB474E8018617B2B3@EXBE1IS02.omnifone.com> Organization: Intellique X-Mailer: Claws Mail 3.12.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1448905244 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24854 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Le Mon, 30 Nov 2015 16:51:57 +0000 Sandeep Patel =C3=A9crivait: >=20 > What could be causing these issues? >=20 > Thanks for your help in advanced. Hard to say, what does xfs_info /mountpoint says? Are the corruption occuring on all machines or do they target some systems more? Did you try repairing using the latest (4.2 or 4.3) version of xfs_repair? The Oracle Linux version is probably seriously out of date. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From spatel@omnifone.com Mon Nov 30 12:07:04 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 19DF329DF5 for ; Mon, 30 Nov 2015 12:07:04 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 09BF0304062 for ; Mon, 30 Nov 2015 10:07:00 -0800 (PST) X-ASG-Debug-ID: 1448906817-04cb6c53556b540001-NocioJ Received: from mail1.bemta5.messagelabs.com (mail1.bemta5.messagelabs.com [195.245.231.143]) by cuda.sgi.com with ESMTP id nL3uBXGXBUiLnmur (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 10:06:58 -0800 (PST) X-Barracuda-Envelope-From: spatel@omnifone.com X-Barracuda-Apparent-Source-IP: 195.245.231.143 Received: from [85.158.136.51] by server-7.bemta-5.messagelabs.com id 0F/FB-13905-1409C565; Mon, 30 Nov 2015 18:06:57 +0000 X-Env-Sender: spatel@omnifone.com X-Msg-Ref: server-4.tower-49.messagelabs.com!1448906817!3555432!1 X-Originating-IP: [195.54.58.132] X-StarScan-Received: X-StarScan-Version: 7.19.2; banners=omnifone.com,-,- X-VirusChecked: Checked Received: (qmail 10463 invoked from network); 30 Nov 2015 18:06:57 -0000 Received: from brookgreen.ribob01.net (HELO EXFE1IS02.omnifone.com) (195.54.58.132) by server-4.tower-49.messagelabs.com with AES128-SHA encrypted SMTP; 30 Nov 2015 18:06:57 -0000 Received: from EXBE1IS02.omnifone.com ([::1]) by EXFE1IS02.omnifone.com ([::1]) with mapi id 14.01.0438.000; Mon, 30 Nov 2015 18:06:56 +0000 From: Sandeep Patel To: Emmanuel Florac CC: "xfs@oss.sgi.com" Subject: RE: XFS corruptions Thread-Topic: XFS corruptions X-ASG-Orig-Subj: RE: XFS corruptions Thread-Index: AdErjxENXmHY5tPxRXq2ndhekRd0vAABy5kAAAAX3HA= Date: Mon, 30 Nov 2015 18:06:55 +0000 Deferred-Delivery: Mon, 30 Nov 2015 18:06:00 +0000 Message-ID: <558408F298C8CE4C89D93BD56AB474E8018617B3A6@EXBE1IS02.omnifone.com> References: <558408F298C8CE4C89D93BD56AB474E8018617B2B3@EXBE1IS02.omnifone.com> <20151130184048.3fa123e0@harpe.intellique.com> In-Reply-To: <20151130184048.3fa123e0@harpe.intellique.com> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.0.0.156] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-Barracuda-Connect: mail1.bemta5.messagelabs.com[195.245.231.143] X-Barracuda-Start-Time: 1448906818 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.02 X-Barracuda-Spam-Status: No, SCORE=0.02 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=THREAD_INDEX, THREAD_TOPIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24855 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... 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Mon, 30 Nov 2015 12:45:56 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 17DA28F8039 for ; Mon, 30 Nov 2015 10:45:52 -0800 (PST) X-ASG-Debug-ID: 1448909149-04bdf07f0a2da4c0001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id 89mHmLXIpYHVGIyr (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 10:45:50 -0800 (PST) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id 9AF9A2D123; Mon, 30 Nov 2015 13:45:49 -0500 (EST) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail1.g1.pair.com (Postfix) with ESMTPSA id D71C32D11A; Mon, 30 Nov 2015 13:45:48 -0500 (EST) Date: Mon, 30 Nov 2015 19:45:54 +0100 From: Emmanuel Florac To: Sandeep Patel Cc: "xfs@oss.sgi.com" Subject: Re: XFS corruptions Message-ID: <20151130194554.6140bf30@harpe.intellique.com> X-ASG-Orig-Subj: Re: XFS corruptions In-Reply-To: <558408F298C8CE4C89D93BD56AB474E8018617B3A6@EXBE1IS02.omnifone.com> References: <558408F298C8CE4C89D93BD56AB474E8018617B2B3@EXBE1IS02.omnifone.com> <20151130184048.3fa123e0@harpe.intellique.com> <558408F298C8CE4C89D93BD56AB474E8018617B3A6@EXBE1IS02.omnifone.com> Organization: Intellique X-Mailer: Claws Mail 3.12.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1448909150 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24856 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Le Mon, 30 Nov 2015 18:06:55 +0000 Sandeep Patel =C3=A9crivait: > Hi Emmanuel, >=20 > Thanks for the response. >=20 > [root@gc003b ~]# xfs_info /dev/sdb > meta-data=3D/dev/sdb isize=3D512 agcount=3D52, > agsize=3D268435455 blks =3D sectsz=3D4096 attr=3D2, > projid32bit=3D1 =3D crc=3D0 > data =3D bsize=3D4096 blocks=3D13916176384, > imaxpct=3D1 =3D sunit=3D0 swidth=3D0 blks > naming =3Dversion 2 bsize=3D4096 ascii-ci=3D0 > log =3Dinternal bsize=3D4096 blocks=3D521728, versio= n=3D2 > =3D sectsz=3D4096 sunit=3D1 blks, > lazy-count=3D1 realtime =3Dnone extsz=3D4096 blocks= =3D0, > rtextents=3D0 Looks plain defaults... you didn't apply any customization, did you? >=20 > We have 18 nodes each with 2 of these arrays and we are seeing this > across the board. Hum, strange, are you running the latest RAID firmware on the controllers? Does this happen more often when the array is rebuilding, or verifying, or when the system is under heavy IO? Or does it happen just completely at random? =20 > I have updated the xfsprogs to 3.1.11-1.0.6.el6.x86_64 which is the > latest version available on our yum repo. If you're not afraid of running binaries from unknown source, here's a 4.2.0 version I've built recently: http://update.intellique.com/pub/xfs_repair-4.2.0.gz =20 --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From amirsoroka@gmail.com Mon Nov 30 14:48:51 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3237829DF5 for ; Mon, 30 Nov 2015 14:48:51 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0BB6C30405F for ; Mon, 30 Nov 2015 12:48:50 -0800 (PST) X-ASG-Debug-ID: 1448916526-04cbb0605d2d7140001-NocioJ Received: from mail-lf0-f45.google.com (mail-lf0-f45.google.com [209.85.215.45]) by cuda.sgi.com with ESMTP id 2qwpr90bQgj0i2Op (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 30 Nov 2015 12:48:46 -0800 (PST) X-Barracuda-Envelope-From: amirsoroka@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.215.45 Received: by lfaz4 with SMTP id z4so213882381lfa.0 for ; Mon, 30 Nov 2015 12:48:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=KwgQChdnWdDazvaBGu/c9u/4L4a5yUB7vNVyE61vb8g=; b=HsfLbKcjOZBG605FrsGUfbe/49R+y6SVJwvWXrBWAoGkD7xj5zzTgqOWGqWsYBOWDz Ro2Hwut9X3PGUeHeRKWg0adp4pjel5HIAr1Q/3paekHXjOxhEnCdVdOUFPseImmuVanl nayfQbR5YwVQNm/mDrISZuvb0Ys77XOTr3NcPf/fFJVLZbQYVZ5AFmZKCGRBj4WP2a+7 vyn6eKBcxoXdl6gla5pa+Xe0vHqODola/ZNde/dKbtDGQ7WD7G1kmqGmnO0iXInFoZLF pSPpdZMpoH8qtjvfv1gJNNL3GPTdpMHstjsETFaru+dYSSDhtvHW5h6/3EwCrc4Al3zR 0rAA== MIME-Version: 1.0 X-Received: by 10.112.171.74 with SMTP id as10mr25449753lbc.137.1448916525310; Mon, 30 Nov 2015 12:48:45 -0800 (PST) Received: by 10.25.214.147 with HTTP; Mon, 30 Nov 2015 12:48:45 -0800 (PST) Date: Mon, 30 Nov 2015 22:48:45 +0200 Message-ID: Subject: XFS corruption - Ubuntu 14.04 VM with RDM From: Amir Soroka X-ASG-Orig-Subj: XFS corruption - Ubuntu 14.04 VM with RDM To: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=001a11c37fbaccec750525c82a2b X-Barracuda-Connect: mail-lf0-f45.google.com[209.85.215.45] X-Barracuda-Start-Time: 1448916526 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24858 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --001a11c37fbaccec750525c82a2b Content-Type: text/plain; charset=UTF-8 Hello, We have a corruption issue. Would be happy to get a solution. Configuration is Ubuntu 14.04 (generic) as a VM over ESXi 5.5, with 1.6 TB RDM - storage has a Cache battery, Raid 6, SSD disks. During some heavy indexing activity we get a corruption as you can see below. Some more information: * Mount options: defaults,noatime,nodiratime,nobarrier,inode64,logbufs=8 0 0 * XFS was created like this: mkfs.xfs -f -d su=131072,sw=8 -i size=1024 /dev/sdb1 * Parted command was: /sbin/parted -s $i mklabel gpt mkpart /dev/sdb1 xfs 2048s 100% [ 10.395575] XFS (sdb1): Mounting V4 Filesystem [ 10.430107] XFS (sdb1): Ending clean mount [ 675.504000] XFS (sdb1): Metadata corruption detected at xfs_agf_read_verify+0x61/0x100 [xfs], block 0x1 [ 675.504043] XFS (sdb1): Unmount and run xfs_repair [ 675.504062] XFS (sdb1): First 64 bytes of corrupted metadata buffer: [ 675.504218] XFS (sdb1): metadata I/O error: block 0x1 ("xfs_trans_read_buf_map") error 117 numblks 1 [ 675.504257] XFS (sdb1): page discard on page ffffea003fbdc280, inode 0x86, offset 0. [ 677.186009] XFS (sdb1): Metadata corruption detected at xfs_agf_read_verify+0x61/0x100 [xfs], block 0x1 [ 677.186052] XFS (sdb1): Unmount and run xfs_repair [ 677.186070] XFS (sdb1): First 64 bytes of corrupted metadata buffer: [ 677.186239] XFS (sdb1): metadata I/O error: block 0x1 ("xfs_trans_read_buf_map") error 117 numblks 1 [ 677.186283] XFS (sdb1): page discard on page ffffea0000d8d480, inode 0x87, offset 0. [ 4203.145905] XFS (sdb1): Metadata corruption detected at xfs_agf_read_verify+0x61/0x100 [xfs], block 0x1 [ 4203.145957] XFS (sdb1): Unmount and run xfs_repair [ 4203.145976] XFS (sdb1): First 64 bytes of corrupted metadata buffer: [ 4203.146132] XFS (sdb1): metadata I/O error: block 0x1 ("xfs_trans_read_buf_map") error 117 numblks 1 [ 4203.146171] XFS (sdb1): page discard on page ffffea002c1399c0, inode 0x60003c0c, offset 0. [84997.832171] XFS (sdb1): Metadata corruption detected at xfs_inode_buf_verify+0x7d/0xe0 [xfs], block 0x110 [84997.835828] XFS (sdb1): Unmount and run xfs_repair [84997.836502] XFS (sdb1): First 64 bytes of corrupted metadata buffer: [84997.839848] XFS (sdb1): Metadata corruption detected at xfs_inode_buf_verify+0x7d/0xe0 [xfs], block 0x110 [84997.841188] XFS (sdb1): Unmount and run xfs_repair [84997.841872] XFS (sdb1): First 64 bytes of corrupted metadata buffer: [84997.845252] XFS (sdb1): Metadata corruption detected at xfs_inode_buf_verify+0x7d/0xe0 [xfs], block 0x110 [84997.846523] XFS (sdb1): Unmount and run xfs_repair [84997.847154] XFS (sdb1): First 64 bytes of corrupted metadata buffer: [84997.850467] XFS (sdb1): Metadata corruption detected at xfs_inode_buf_verify+0x7d/0xe0 [xfs], block 0x110 [84997.851714] XFS (sdb1): Unmount and run xfs_repair [84997.852319] XFS (sdb1): First 64 bytes of corrupted metadata buffer: [84997.855469] XFS (sdb1): Metadata corruption detected at xfs_inode_buf_verify+0x7d/0xe0 [xfs], block 0x110 [84997.856718] XFS (sdb1): Unmount and run xfs_repair [84997.857340] XFS (sdb1): First 64 bytes of corrupted metadata buffer: [84997.860366] XFS (sdb1): Metadata corruption detected at xfs_inode_buf_verify+0x7d/0xe0 [xfs], block 0x110 [84997.861521] XFS (sdb1): Unmount and run xfs_repair [84997.862117] XFS (sdb1): First 64 bytes of corrupted metadata buffer: [84997.865178] XFS (sdb1): Metadata corruption detected at xfs_inode_buf_verify+0x7d/0xe0 [xfs], block 0x110 [84997.866356] XFS (sdb1): Unmount and run xfs_repair [84997.866962] XFS (sdb1): First 64 bytes of corrupted metadata buffer: [84997.869987] XFS (sdb1): Metadata corruption detected at xfs_inode_buf_verify+0x7d/0xe0 [xfs], block 0x110 [84997.871163] XFS (sdb1): Unmount and run xfs_repair [84997.871760] XFS (sdb1): First 64 bytes of corrupted metadata buffer: [84997.874798] XFS (sdb1): metadata I/O error: block 0x110 ("xfs_trans_read_buf_map") error 117 numblks 16 [84997.875947] XFS (sdb1): xfs_do_force_shutdown(0x1) called from line 315 of file /build/linux-lts-vivid-6tG2ln/linux-lts-vivid-3.19.0/fs/xfs/xfs_trans_buf.c. Return address = 0xffffffffc02596ab [84997.888409] XFS (sdb1): I/O Error Detected. Shutting down filesystem [84997.889017] XFS (sdb1): Please umount the filesystem and rectify the problem(s) [84997.889643] XFS (sdb1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -117. [85011.531433] XFS (sdb1): xfs_log_force: error -5 returned. [85041.596418] XFS (sdb1): xfs_log_force: error -5 returned. [85071.661447] XFS (sdb1): xfs_log_force: error -5 returned. [85101.726398] XFS (sdb1): xfs_log_force: error -5 returned. [85131.791376] XFS (sdb1): xfs_log_force: error -5 returned. [85161.856372] XFS (sdb1): xfs_log_force: error -5 returned. [85191.921373] XFS (sdb1): xfs_log_force: error -5 returned. [85221.986341] XFS (sdb1): xfs_log_force: error -5 returned. [85252.051322] XFS (sdb1): xfs_log_force: error -5 returned. [85282.117357] XFS (sdb1): xfs_log_force: error -5 returned. [85312.181319] XFS (sdb1): xfs_log_force: error -5 returned. [85342.246276] XFS (sdb1): xfs_log_force: error -5 returned. [85372.311273] XFS (sdb1): xfs_log_force: error -5 returned. [85402.376250] XFS (sdb1): xfs_log_force: error -5 returned. [85432.441269] XFS (sdb1): xfs_log_force: error -5 returned. [85462.506208] XFS (sdb1): xfs_log_force: error -5 returned. [85492.571203] XFS (sdb1): xfs_log_force: error -5 returned. [85522.636192] XFS (sdb1): xfs_log_force: error -5 returned. [85552.701213] XFS (sdb1): xfs_log_force: error -5 returned. [85582.766164] XFS (sdb1): xfs_log_force: error -5 returned. [85612.831140] XFS (sdb1): xfs_log_force: error -5 returned. [85642.896133] XFS (sdb1): xfs_log_force: error -5 returned. [85672.961128] XFS (sdb1): xfs_log_force: error -5 returned. [85703.026104] XFS (sdb1): xfs_log_force: error -5 returned. [85733.091083] XFS (sdb1): xfs_log_force: error -5 returned. [85763.156070] XFS (sdb1): xfs_log_force: error -5 returned. [85793.221079] XFS (sdb1): xfs_log_force: error -5 returned. [85823.286041] XFS (sdb1): xfs_log_force: error -5 returned. [85853.351019] XFS (sdb1): xfs_log_force: error -5 returned. [85883.416016] XFS (sdb1): xfs_log_force: error -5 returned. [85913.481014] XFS (sdb1): xfs_log_force: error -5 returned. [85923.032422] XFS (sdb1): xfs_log_force: error -5 returned. [85923.033429] XFS (sdb1): xfs_log_force: error -5 returned. [85923.033601] XFS (sdb1): xfs_log_force: error -5 returned. [86173.742817] XFS (sdb1): Mounting V4 Filesystem [86173.780730] XFS (sdb1): Starting recovery (logdev: internal) [86173.787173] XFS (sdb1): Metadata corruption detected at xfs_agf_read_verify+0x61/0x100 [xfs], block 0x1 [86173.788445] XFS (sdb1): Unmount and run xfs_repair [86173.789072] XFS (sdb1): First 64 bytes of corrupted metadata buffer: [86173.792242] XFS (sdb1): metadata I/O error: block 0x1 ("xfs_trans_read_buf_map") error 117 numblks 1 [86187.845410] XFS (sdb1): Mounting V4 Filesystem [86187.881669] XFS (sdb1): Ending clean mount Thanks, Amir --001a11c37fbaccec750525c82a2b Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hello,
We have a corruption issue. Would be= happy to get a solution.

Configuration is Ubuntu = 14.04 (generic) as a VM over ESXi 5.5, with 1.6 TB RDM - storage has a Cach= e battery, Raid 6, SSD disks.
During some heavy indexing activity= we get a corruption as you can see below.
Some more information:=
* Mount options: defaults,noatime,nodiratime,nobarrier,inode64,l= ogbufs=3D8 0 0
* XFS was created like this: mkfs.xfs -f -d su=3D1= 31072,sw=3D8 -i size=3D1024 /dev/sdb1
* Parted command was: /sbin= /parted -s $i mklabel gpt mkpart /dev/sdb1 xfs 2048s 100%


[ =C2=A0 10.395575] XFS (sdb1): Mounting V4 Filesyst= em
[ =C2=A0 10.430107] XFS (sdb1): Ending clean mount
[= =C2=A0675.504000] XFS (sdb1): Metadata corruption detected at xfs_agf_read= _verify+0x61/0x100 [xfs], block 0x1
[ =C2=A0675.504043] XFS (sdb1= ): Unmount and run xfs_repair
[ =C2=A0675.504062] XFS (sdb1): Fir= st 64 bytes of corrupted metadata buffer:
[ =C2=A0675.504218] XFS= (sdb1): metadata I/O error: block 0x1 ("xfs_trans_read_buf_map")= error 117 numblks 1
[ =C2=A0675.504257] XFS (sdb1): page discard= on page ffffea003fbdc280, inode 0x86, offset 0.
[ =C2=A0677.1860= 09] XFS (sdb1): Metadata corruption detected at xfs_agf_read_verify+0x61/0x= 100 [xfs], block 0x1
[ =C2=A0677.186052] XFS (sdb1): Unmount and = run xfs_repair
[ =C2=A0677.186070] XFS (sdb1): First 64 bytes of = corrupted metadata buffer:
[ =C2=A0677.186239] XFS (sdb1): metada= ta I/O error: block 0x1 ("xfs_trans_read_buf_map") error 117 numb= lks 1
[ =C2=A0677.186283] XFS (sdb1): page discard on page ffffea= 0000d8d480, inode 0x87, offset 0.
[ 4203.145905] XFS (sdb1): Meta= data corruption detected at xfs_agf_read_verify+0x61/0x100 [xfs], block 0x1=
[ 4203.145957] XFS (sdb1): Unmount and run xfs_repair
= [ 4203.145976] XFS (sdb1): First 64 bytes of corrupted metadata buffer:
[ 4203.146132] XFS (sdb1): metadata I/O error: block 0x1 ("xfs_= trans_read_buf_map") error 117 numblks 1
[ 4203.146171] XFS = (sdb1): page discard on page ffffea002c1399c0, inode 0x60003c0c, offset 0.<= /div>
[84997.832171] XFS (sdb1): Metadata corruption detected at xfs_in= ode_buf_verify+0x7d/0xe0 [xfs], block 0x110
[84997.835828] XFS (s= db1): Unmount and run xfs_repair
[84997.836502] XFS (sdb1): First= 64 bytes of corrupted metadata buffer:
[84997.839848] XFS (sdb1)= : Metadata corruption detected at xfs_inode_buf_verify+0x7d/0xe0 [xfs], blo= ck 0x110
[84997.841188] XFS (sdb1): Unmount and run xfs_repair
[84997.841872] XFS (sdb1): First 64 bytes of corrupted metadata buf= fer:
[84997.845252] XFS (sdb1): Metadata corruption detected at x= fs_inode_buf_verify+0x7d/0xe0 [xfs], block 0x110
[84997.846523] X= FS (sdb1): Unmount and run xfs_repair
[84997.847154] XFS (sdb1): = First 64 bytes of corrupted metadata buffer:
[84997.850467] XFS (= sdb1): Metadata corruption detected at xfs_inode_buf_verify+0x7d/0xe0 [xfs]= , block 0x110
[84997.851714] XFS (sdb1): Unmount and run xfs_repa= ir
[84997.852319] XFS (sdb1): First 64 bytes of corrupted metadat= a buffer:
[84997.855469] XFS (sdb1): Metadata corruption detected= at xfs_inode_buf_verify+0x7d/0xe0 [xfs], block 0x110
[84997.8567= 18] XFS (sdb1): Unmount and run xfs_repair
[84997.857340] XFS (sd= b1): First 64 bytes of corrupted metadata buffer:
[84997.860366] = XFS (sdb1): Metadata corruption detected at xfs_inode_buf_verify+0x7d/0xe0 = [xfs], block 0x110
[84997.861521] XFS (sdb1): Unmount and run xfs= _repair
[84997.862117] XFS (sdb1): First 64 bytes of corrupted me= tadata buffer:
[84997.865178] XFS (sdb1): Metadata corruption det= ected at xfs_inode_buf_verify+0x7d/0xe0 [xfs], block 0x110
[84997= .866356] XFS (sdb1): Unmount and run xfs_repair
[84997.866962] XF= S (sdb1): First 64 bytes of corrupted metadata buffer:
[84997.869= 987] XFS (sdb1): Metadata corruption detected at xfs_inode_buf_verify+0x7d/= 0xe0 [xfs], block 0x110
[84997.871163] XFS (sdb1): Unmount and ru= n xfs_repair
[84997.871760] XFS (sdb1): First 64 bytes of corrupt= ed metadata buffer:
[84997.874798] XFS (sdb1): metadata I/O error= : block 0x110 ("xfs_trans_read_buf_map") error 117 numblks 16
[84997.875947] XFS (sdb1): xfs_do_force_shutdown(0x1) called from li= ne 315 of file /build/linux-lts-vivid-6tG2ln/linux-lts-vivid-3.19.0/fs/xfs/= xfs_trans_buf.c.=C2=A0 Return address =3D 0xffffffffc02596ab
[849= 97.888409] XFS (sdb1): I/O Error Detected. Shutting down filesystem
[84997.889017] XFS (sdb1): Please umount the filesystem and rectify the = problem(s)
[84997.889643] XFS (sdb1): xfs_imap_to_bp: xfs_trans_r= ead_buf() returned error -117.
[85011.531433] XFS (sdb1): xfs_log= _force: error -5 returned.
[85041.596418] XFS (sdb1): xfs_log_for= ce: error -5 returned.
[85071.661447] XFS (sdb1): xfs_log_force: = error -5 returned.
[85101.726398] XFS (sdb1): xfs_log_force: erro= r -5 returned.
[85131.791376] XFS (sdb1): xfs_log_force: error -5= returned.
[85161.856372] XFS (sdb1): xfs_log_force: error -5 ret= urned.
[85191.921373] XFS (sdb1): xfs_log_force: error -5 returne= d.
[85221.986341] XFS (sdb1): xfs_log_force: error -5 returned.
[85252.051322] XFS (sdb1): xfs_log_force: error -5 returned.
=
[85282.117357] XFS (sdb1): xfs_log_force: error -5 returned.
[85312.181319] XFS (sdb1): xfs_log_force: error -5 returned.
[85= 342.246276] XFS (sdb1): xfs_log_force: error -5 returned.
[85372.= 311273] XFS (sdb1): xfs_log_force: error -5 returned.
[85402.3762= 50] XFS (sdb1): xfs_log_force: error -5 returned.
[85432.441269] = XFS (sdb1): xfs_log_force: error -5 returned.
[85462.506208] XFS = (sdb1): xfs_log_force: error -5 returned.
[85492.571203] XFS (sdb= 1): xfs_log_force: error -5 returned.
[85522.636192] XFS (sdb1): = xfs_log_force: error -5 returned.
[85552.701213] XFS (sdb1): xfs_= log_force: error -5 returned.
[85582.766164] XFS (sdb1): xfs_log_= force: error -5 returned.
[85612.831140] XFS (sdb1): xfs_log_forc= e: error -5 returned.
[85642.896133] XFS (sdb1): xfs_log_force: e= rror -5 returned.
[85672.961128] XFS (sdb1): xfs_log_force: error= -5 returned.
[85703.026104] XFS (sdb1): xfs_log_force: error -5 = returned.
[85733.091083] XFS (sdb1): xfs_log_force: error -5 retu= rned.
[85763.156070] XFS (sdb1): xfs_log_force: error -5 returned= .
[85793.221079] XFS (sdb1): xfs_log_force: error -5 returned.
[85823.286041] XFS (sdb1): xfs_log_force: error -5 returned.
<= div>[85853.351019] XFS (sdb1): xfs_log_force: error -5 returned.
= [85883.416016] XFS (sdb1): xfs_log_force: error -5 returned.
[859= 13.481014] XFS (sdb1): xfs_log_force: error -5 returned.
[85923.0= 32422] XFS (sdb1): xfs_log_force: error -5 returned.
[85923.03342= 9] XFS (sdb1): xfs_log_force: error -5 returned.
[85923.033601] X= FS (sdb1): xfs_log_force: error -5 returned.
[86173.742817] XFS (= sdb1): Mounting V4 Filesystem
[86173.780730] XFS (sdb1): Starting= recovery (logdev: internal)
[86173.787173] XFS (sdb1): Metadata = corruption detected at xfs_agf_read_verify+0x61/0x100 [xfs], block 0x1
[86173.788445] XFS (sdb1): Unmount and run xfs_repair
[8617= 3.789072] XFS (sdb1): First 64 bytes of corrupted metadata buffer:
[86173.792242] XFS (sdb1): metadata I/O error: block 0x1 ("xfs_trans= _read_buf_map") error 117 numblks 1
[86187.845410] XFS (sdb1= ): Mounting V4 Filesystem
[86187.881669] XFS (sdb1): Ending clean= mount

Thanks,
Amir
--001a11c37fbaccec750525c82a2b-- From david@fromorbit.com Mon Nov 30 15:41:55 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 119F429DF5 for ; Mon, 30 Nov 2015 15:41:55 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id E712B304062 for ; Mon, 30 Nov 2015 13:41:51 -0800 (PST) X-ASG-Debug-ID: 1448919708-04bdf07f072e12f0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 8qDjlQZQnNl9cF2g for ; Mon, 30 Nov 2015 13:41:49 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2ANCQAQwlxW/1bELHlegzuBQoJhqEAGiz+JPoYJAgIBAQKBOU0BAQEBAQGBAAuENQEBBDocIxAIAxgJJQ8FJQMhExuHfgMRtxMYhEwBAQgCASAZhXSFRYk5BZZXjS+BZJIthGeDcmOEGCo0hXEBAQE Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 01 Dec 2015 08:11:17 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a3WC1-0006d1-08; Tue, 01 Dec 2015 08:41:05 +1100 Date: Tue, 1 Dec 2015 08:41:04 +1100 From: Dave Chinner To: "aluno3@poczta.onet.pl" Cc: xfs@oss.sgi.com Subject: Re: Which xfsprogs version to which kernel version Message-ID: <20151130214104.GL26718@dastard> X-ASG-Orig-Subj: Re: Which xfsprogs version to which kernel version References: <5656DD39.8060403@poczta.onet.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5656DD39.8060403@poczta.onet.pl> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448919708 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24859 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Thu, Nov 26, 2015 at 11:21:45AM +0100, aluno3@poczta.onet.pl wrote: > Hello, > > I am using kernel 3.10 and would like to update xfsprogs (currently I > have 3.1.5). > > When I tried to use the newest version of xfsprogs 4.3.0 I get the call > trace about detected version 5 of superblock when mounting volume which > was formatted using mkfs.xfs from 4.3.0. More recent xfsprogs versions enable features that are only supported by recent kernels. We tend to wait at least a year before enabling new features by default in xfsprogs so that kernel support is usually picke dup by distros before they update xfsprogs.... If you have an old kernel, then you need to turn off the newer features that your kernel does not support. This has always been the case - if you update the xfsprogs yourself, then you need to use the correct options for your kernel. In general, this: # mkfs.xfs -f -m crc=0 -n ftype=0 will make a filesystem that can be mounted on old kernels. If distros are shipping old kernels with new xfsprogs and are not changing the default behaviour to suit their kernel, then that is a distro problem. As it is, in future the version of xfsprogs will tell you what kernel has the same feature support. i.e. xfsprogs 4.2.0 has exactly the same code/feature support as kernel 4.2.0. Similarly for xfsprogs/kernel 4.3.0. However, this won't prevent the fact that xfsprogs 4.8.0 might enable features that kernel 4.3.0 does not know about - the only way to prevent that sort of problem is to never enable new features in mkfs.xfs, and that's not a viable solution. Cheers, Dave. -- Dave Chinner david@fromorbit.com From agruenba@redhat.com Mon Nov 30 15:44:23 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6CDB629DF5 for ; Mon, 30 Nov 2015 15:44:23 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 4EE36304059 for ; Mon, 30 Nov 2015 13:44:23 -0800 (PST) X-ASG-Debug-ID: 1448919861-04cbb0605c2d8ed0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id pePFsJTFlzwpTxmS (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 13:44:21 -0800 (PST) X-Barracuda-Envelope-From: agruenba@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (Postfix) with ESMTPS id 2B9A6C0D2241; Mon, 30 Nov 2015 21:44:21 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-54.ams2.redhat.com [10.36.6.54]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tAULhiRQ010792; Mon, 30 Nov 2015 16:44:17 -0500 From: Andreas Gruenbacher To: Alexander Viro , Christoph Hellwig , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: Andreas Gruenbacher , Dave Chinner , xfs@oss.sgi.com Subject: [PATCH 08/10] xfs: Change how listxattr generates synthetic attributes Date: Mon, 30 Nov 2015 22:43:41 +0100 X-ASG-Orig-Subj: [PATCH 08/10] xfs: Change how listxattr generates synthetic attributes Message-Id: <1448919823-27103-9-git-send-email-agruenba@redhat.com> In-Reply-To: <1448919823-27103-1-git-send-email-agruenba@redhat.com> References: <1448919823-27103-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1448919861 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Instead of adding the synthesized POSIX ACL attribute names after listing all non-synthesized attributes, generate them immediately when listing the non-synthesized attributes. In addition, merge xfs_xattr_put_listent and xfs_xattr_put_listent_sizes to ensure that the list size is computed correctly; the split version was overestimating the list size for non-root users. Signed-off-by: Andreas Gruenbacher Cc: Dave Chinner Cc: xfs@oss.sgi.com --- fs/xfs/xfs_acl.c | 23 --------- fs/xfs/xfs_acl.h | 4 -- fs/xfs/xfs_xattr.c | 137 +++++++++++++++++++++++------------------------------ 3 files changed, 59 insertions(+), 105 deletions(-) diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c index 6bb470f..2d5df1f 100644 --- a/fs/xfs/xfs_acl.c +++ b/fs/xfs/xfs_acl.c @@ -252,29 +252,6 @@ xfs_set_mode(struct inode *inode, umode_t mode) return error; } -static int -xfs_acl_exists(struct inode *inode, unsigned char *name) -{ - int len = XFS_ACL_MAX_SIZE(XFS_M(inode->i_sb)); - - return (xfs_attr_get(XFS_I(inode), name, NULL, &len, - ATTR_ROOT|ATTR_KERNOVAL) == 0); -} - -int -posix_acl_access_exists(struct inode *inode) -{ - return xfs_acl_exists(inode, SGI_ACL_FILE); -} - -int -posix_acl_default_exists(struct inode *inode) -{ - if (!S_ISDIR(inode->i_mode)) - return 0; - return xfs_acl_exists(inode, SGI_ACL_DEFAULT); -} - int xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type) { diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h index 52f8255..286fa89 100644 --- a/fs/xfs/xfs_acl.h +++ b/fs/xfs/xfs_acl.h @@ -24,16 +24,12 @@ struct posix_acl; #ifdef CONFIG_XFS_POSIX_ACL extern struct posix_acl *xfs_get_acl(struct inode *inode, int type); extern int xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type); -extern int posix_acl_access_exists(struct inode *inode); -extern int posix_acl_default_exists(struct inode *inode); #else static inline struct posix_acl *xfs_get_acl(struct inode *inode, int type) { return NULL; } # define xfs_set_acl NULL -# define posix_acl_access_exists(inode) 0 -# define posix_acl_default_exists(inode) 0 #endif /* CONFIG_XFS_POSIX_ACL */ extern void xfs_forget_acl(struct inode *inode, const char *name, int xflags); diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c index 36a4385..110f1d7 100644 --- a/fs/xfs/xfs_xattr.c +++ b/fs/xfs/xfs_xattr.c @@ -129,47 +129,19 @@ const struct xattr_handler *xfs_xattr_handlers[] = { NULL }; -static unsigned int xfs_xattr_prefix_len(int flags) -{ - if (flags & XFS_ATTR_SECURE) - return sizeof("security"); - else if (flags & XFS_ATTR_ROOT) - return sizeof("trusted"); - else - return sizeof("user"); -} - -static const char *xfs_xattr_prefix(int flags) -{ - if (flags & XFS_ATTR_SECURE) - return xfs_xattr_security_handler.prefix; - else if (flags & XFS_ATTR_ROOT) - return xfs_xattr_trusted_handler.prefix; - else - return xfs_xattr_user_handler.prefix; -} - static int -xfs_xattr_put_listent( +__xfs_xattr_put_listent( struct xfs_attr_list_context *context, - int flags, - unsigned char *name, - int namelen, - int valuelen, - unsigned char *value) + char *prefix, + int prefix_len, + unsigned char *name, + int namelen) { - unsigned int prefix_len = xfs_xattr_prefix_len(flags); char *offset; int arraytop; - ASSERT(context->count >= 0); - - /* - * Only show root namespace entries if we are actually allowed to - * see them. - */ - if ((flags & XFS_ATTR_ROOT) && !capable(CAP_SYS_ADMIN)) - return 0; + if (!context->alist) + goto compute_size; arraytop = context->count + prefix_len + namelen + 1; if (arraytop > context->firstu) { @@ -177,17 +149,19 @@ xfs_xattr_put_listent( return 1; } offset = (char *)context->alist + context->count; - strncpy(offset, xfs_xattr_prefix(flags), prefix_len); + strncpy(offset, prefix, prefix_len); offset += prefix_len; strncpy(offset, (char *)name, namelen); /* real name */ offset += namelen; *offset = '\0'; + +compute_size: context->count += prefix_len + namelen + 1; return 0; } static int -xfs_xattr_put_listent_sizes( +xfs_xattr_put_listent( struct xfs_attr_list_context *context, int flags, unsigned char *name, @@ -195,24 +169,55 @@ xfs_xattr_put_listent_sizes( int valuelen, unsigned char *value) { - context->count += xfs_xattr_prefix_len(flags) + namelen + 1; - return 0; -} + char *prefix; + int prefix_len; -static int -list_one_attr(const char *name, const size_t len, void *data, - size_t size, ssize_t *result) -{ - char *p = data + *result; + ASSERT(context->count >= 0); - *result += len; - if (!size) - return 0; - if (*result > size) - return -ERANGE; + if (flags & XFS_ATTR_ROOT) { +#ifdef CONFIG_XFS_POSIX_ACL + if (namelen == SGI_ACL_FILE_SIZE && + strncmp(name, SGI_ACL_FILE, + SGI_ACL_FILE_SIZE) == 0) { + int ret = __xfs_xattr_put_listent( + context, XATTR_SYSTEM_PREFIX, + XATTR_SYSTEM_PREFIX_LEN, + XATTR_POSIX_ACL_ACCESS, + strlen(XATTR_POSIX_ACL_ACCESS)); + if (ret) + return ret; + } else if (namelen == SGI_ACL_DEFAULT_SIZE && + strncmp(name, SGI_ACL_DEFAULT, + SGI_ACL_DEFAULT_SIZE) == 0) { + int ret = __xfs_xattr_put_listent( + context, XATTR_SYSTEM_PREFIX, + XATTR_SYSTEM_PREFIX_LEN, + XATTR_POSIX_ACL_DEFAULT, + strlen(XATTR_POSIX_ACL_DEFAULT)); + if (ret) + return ret; + } +#endif - strcpy(p, name); - return 0; + /* + * Only show root namespace entries if we are actually allowed to + * see them. + */ + if (!capable(CAP_SYS_ADMIN)) + return 0; + + prefix = XATTR_TRUSTED_PREFIX; + prefix_len = XATTR_TRUSTED_PREFIX_LEN; + } else if (flags & XFS_ATTR_SECURE) { + prefix = XATTR_SECURITY_PREFIX; + prefix_len = XATTR_SECURITY_PREFIX_LEN; + } else { + prefix = XATTR_USER_PREFIX; + prefix_len = XATTR_USER_PREFIX_LEN; + } + + return __xfs_xattr_put_listent(context, prefix, prefix_len, name, + namelen); } ssize_t @@ -221,7 +226,6 @@ xfs_vn_listxattr(struct dentry *dentry, char *data, size_t size) struct xfs_attr_list_context context; struct attrlist_cursor_kern cursor = { 0 }; struct inode *inode = d_inode(dentry); - int error; /* * First read the regular on-disk attributes. @@ -230,37 +234,14 @@ xfs_vn_listxattr(struct dentry *dentry, char *data, size_t size) context.dp = XFS_I(inode); context.cursor = &cursor; context.resynch = 1; - context.alist = data; + context.alist = size ? data : NULL; context.bufsize = size; context.firstu = context.bufsize; - - if (size) - context.put_listent = xfs_xattr_put_listent; - else - context.put_listent = xfs_xattr_put_listent_sizes; + context.put_listent = xfs_xattr_put_listent; xfs_attr_list_int(&context); if (context.count < 0) return -ERANGE; - /* - * Then add the two synthetic ACL attributes. - */ - if (posix_acl_access_exists(inode)) { - error = list_one_attr(XATTR_NAME_POSIX_ACL_ACCESS, - strlen(XATTR_NAME_POSIX_ACL_ACCESS) + 1, - data, size, &context.count); - if (error) - return error; - } - - if (posix_acl_default_exists(inode)) { - error = list_one_attr(XATTR_NAME_POSIX_ACL_DEFAULT, - strlen(XATTR_NAME_POSIX_ACL_DEFAULT) + 1, - data, size, &context.count); - if (error) - return error; - } - return context.count; } -- 2.5.0 From david@fromorbit.com Mon Nov 30 15:51:32 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BA66C29DF5 for ; Mon, 30 Nov 2015 15:51:32 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9C5FB8F8033 for ; Mon, 30 Nov 2015 13:51:29 -0800 (PST) X-ASG-Debug-ID: 1448920285-04cbb0605c2d9120001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id Tjfxos907ygwGRlY for ; Mon, 30 Nov 2015 13:51:26 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CxCAApxFxW/1bELHlegzuBQoJhqEAGiz+JPoYJBAICgTlNAQEBAQEBgQuENQEBBDocIxAIAw4KCSUPBSUDIROILbt9AQEIAiEZhXSFRYRChHcFlleNL4FklxSDcmOCER2Baio0hXEBAQE Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 01 Dec 2015 08:21:25 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a3WLo-0006f0-9r; Tue, 01 Dec 2015 08:51:12 +1100 Date: Tue, 1 Dec 2015 08:51:12 +1100 From: Dave Chinner To: Sandeep Patel Cc: "xfs@oss.sgi.com" Subject: Re: XFS corruptions Message-ID: <20151130215112.GM26718@dastard> X-ASG-Orig-Subj: Re: XFS corruptions References: <558408F298C8CE4C89D93BD56AB474E8018617B2B3@EXBE1IS02.omnifone.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <558408F298C8CE4C89D93BD56AB474E8018617B2B3@EXBE1IS02.omnifone.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448920285 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24860 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Nov 30, 2015 at 04:51:57PM +0000, Sandeep Patel wrote: > Hi, > > We have multiple 22 disk raid 6 arrays using LSI 9280-24i4e raid > cards, all using enterprise grade drives. The array is setup with > physical drive cache disabled and mounted using inode64 with > nobarriers option in Oracle Linux Server release 6.6, kernel > version 3.8.13-55.1.5.el6uek.x86_64. We are suffering from > corruptions with xfs_repair unable to permanently fix the the > issues. Output of dmesg from the latest corruption. > > Pid: 5319, comm: glusterfsd Not tainted 3.8.13-55.1.5.el6uek.x86_64 #2 FYI, we cannot really support vendor enterprise on the upstream lists because the code base is so different from vanilla/upstream kernels. I same exactly the same thing for bugs reported on RHEL/CentOS kernels, and for SLES kernels - only the vendor can properly support their own franken-kernels... Hence I'd suggest that you report the problem to your Oracle support contact so they can walk you through the process of finding the problem.... [ Darrick is really going to thank me for saying this. ] Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Nov 30 16:01:29 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8A54029DF5 for ; Mon, 30 Nov 2015 16:01:29 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2B48AAC003 for ; Mon, 30 Nov 2015 14:01:26 -0800 (PST) X-ASG-Debug-ID: 1448920882-04bdf07f072e1ba0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id gIheOmz2eTFNgLy7 for ; Mon, 30 Nov 2015 14:01:22 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2DUCADwxlxW/1bELHlEGoM7U2+CYYo4nggGiz+JPiOFZgQCAoE5TQEBAQEBAYELhDQBAQEDATocIwULCAMYCSUPBSUDIRMbiAsHDju7OgEBCAIhGYV0hUWEJCCEdQWWV4UqiAWBZIRClkRjgg4DHYFqKjQBhCeBSQEBAQ Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 01 Dec 2015 08:30:52 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a3WUx-0006h1-WD; Tue, 01 Dec 2015 09:00:40 +1100 Date: Tue, 1 Dec 2015 09:00:39 +1100 From: Dave Chinner To: Amir Soroka Cc: xfs@oss.sgi.com Subject: Re: XFS corruption - Ubuntu 14.04 VM with RDM Message-ID: <20151130220039.GN26718@dastard> X-ASG-Orig-Subj: Re: XFS corruption - Ubuntu 14.04 VM with RDM References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448920882 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24860 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On Mon, Nov 30, 2015 at 10:48:45PM +0200, Amir Soroka wrote: > Hello, > We have a corruption issue. Would be happy to get a solution. > > Configuration is Ubuntu 14.04 (generic) as a VM over ESXi 5.5, with 1.6 TB > RDM - storage has a Cache battery, Raid 6, SSD disks. Please reproduce on bare metal, and with a recent kernel. > During some heavy indexing activity we get a corruption as you can see > below. Doesn't tell me anything about the workload. Please include: http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F > Some more information: > * Mount options: defaults,noatime,nodiratime,nobarrier,inode64,logbufs=8 0 0 > * XFS was created like this: mkfs.xfs -f -d su=131072,sw=8 -i size=1024 > /dev/sdb1 > * Parted command was: /sbin/parted -s $i mklabel gpt mkpart /dev/sdb1 xfs > 2048s 100% > > > [ 10.395575] XFS (sdb1): Mounting V4 Filesystem > [ 10.430107] XFS (sdb1): Ending clean mount > [ 675.504000] XFS (sdb1): Metadata corruption detected at > xfs_agf_read_verify+0x61/0x100 [xfs], block 0x1 There should be lots more error logging than that. Where are the stack traces, the hex dumps, etc that go along with normal corruption reports? > [84997.869987] XFS (sdb1): Metadata corruption detected at > xfs_inode_buf_verify+0x7d/0xe0 [xfs], block 0x110 There's more than one type of corruption - I'd suggest that you have a vmware/esx level problem.... > [84997.871163] XFS (sdb1): Unmount and run xfs_repair > [84997.871760] XFS (sdb1): First 64 bytes of corrupted metadata buffer: > [84997.874798] XFS (sdb1): metadata I/O error: block 0x110 Yup, you've removed all the detailed corruption information in the output. i.e. all the bits that might tell us what went wrong. Please post the logs *in full*. Cheers, Dave. -- Dave Chinner david@fromorbit.com From darrick.wong@oracle.com Mon Nov 30 16:04:33 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DC48F29DF5 for ; Mon, 30 Nov 2015 16:04:32 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7CD75AC007 for ; Mon, 30 Nov 2015 14:04:32 -0800 (PST) X-ASG-Debug-ID: 1448921070-04bdf07f082e1cd0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id hYNjU5wATMsQrbir (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 30 Nov 2015 14:04:30 -0800 (PST) X-Barracuda-Envelope-From: darrick.wong@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tAUM4PMu031326 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 30 Nov 2015 22:04:26 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tAUM4PLl017967 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Mon, 30 Nov 2015 22:04:25 GMT Received: from abhmp0009.oracle.com (abhmp0009.oracle.com [141.146.116.15]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tAUM4OLY010838; Mon, 30 Nov 2015 22:04:25 GMT Received: from localhost (/10.145.178.207) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 30 Nov 2015 14:04:24 -0800 Date: Mon, 30 Nov 2015 14:04:23 -0800 From: "Darrick J. Wong" To: Dave Chinner Cc: Sandeep Patel , "xfs@oss.sgi.com" Subject: Re: XFS corruptions Message-ID: <20151130220423.GA16277@birch.djwong.org> X-ASG-Orig-Subj: Re: XFS corruptions References: <558408F298C8CE4C89D93BD56AB474E8018617B2B3@EXBE1IS02.omnifone.com> <20151130215112.GM26718@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151130215112.GM26718@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: userv0022.oracle.com [156.151.31.74] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1448921070 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24860 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines On Tue, Dec 01, 2015 at 08:51:12AM +1100, Dave Chinner wrote: > On Mon, Nov 30, 2015 at 04:51:57PM +0000, Sandeep Patel wrote: > > Hi, > > > > We have multiple 22 disk raid 6 arrays using LSI 9280-24i4e raid > > cards, all using enterprise grade drives. The array is setup with > > physical drive cache disabled and mounted using inode64 with > > nobarriers option in Oracle Linux Server release 6.6, kernel > > version 3.8.13-55.1.5.el6uek.x86_64. We are suffering from > > corruptions with xfs_repair unable to permanently fix the the > > issues. Output of dmesg from the latest corruption. > > > > Pid: 5319, comm: glusterfsd Not tainted 3.8.13-55.1.5.el6uek.x86_64 #2 > > FYI, we cannot really support vendor enterprise on the upstream lists > because the code base is so different from vanilla/upstream kernels. > I same exactly the same thing for bugs reported on RHEL/CentOS > kernels, and for SLES kernels - only the vendor can properly support > their own franken-kernels... > > Hence I'd suggest that you report the problem to your Oracle support > contact so they can walk you through the process of finding the > problem.... > > [ Darrick is really going to thank me for saying this. ] Probably what I'd have written anyway. :) Oracle support might just tell you to upgrade the kernel whatever the latest is. 3.8.13-55 is pretty far back AFAIK. (Is not a support engineer, nor do I play one on TV.) --D > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From david@fromorbit.com Mon Nov 30 17:12:47 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 647CC29DF5 for ; Mon, 30 Nov 2015 17:12:47 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 024FEAC005 for ; Mon, 30 Nov 2015 15:12:46 -0800 (PST) X-ASG-Debug-ID: 1448925158-04bdf07f092e3640001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id AciB4m71McPXacaE for ; Mon, 30 Nov 2015 15:12:38 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2AwCQBX11xW/1bELHlWCIM7U2+CYYo4nggGiz+JPiGFaAICAQECgTdNAQEBAQEBgQuENAEBAQMBJxMcIwULCAMSBgklDwUlAw0UEwmIHQcOvA4BAQEBBgIhGYV0hD+BBoJxgUWFAwWSWYN+hSqIBYFkhEKDJniEdoRXiFljghEdgWoqNIVxAQEB Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 01 Dec 2015 09:40:40 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a3XaV-0006r0-SD; Tue, 01 Dec 2015 10:10:27 +1100 Date: Tue, 1 Dec 2015 10:10:27 +1100 From: Dave Chinner To: Glauber Costa Cc: xfs@oss.sgi.com, Avi Kivity Subject: Re: sleeps and waits during io_submit Message-ID: <20151130231027.GO26718@dastard> X-ASG-Orig-Subj: Re: sleeps and waits during io_submit References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448925158 X-Barracuda-URL: https://192.48.157.11:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-BRTS-Evidence: kernelhub.org X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Nov 27, 2015 at 09:43:50PM -0500, Glauber Costa wrote: > Hello my dear XFSers, > > For those of you who don't know, we at ScyllaDB produce a modern NoSQL > data store that, at the moment, runs on top of XFS only. We deal > exclusively with asynchronous and direct IO, due to our > thread-per-core architecture. Due to that, we avoid issuing any > operation that will sleep. > > While debugging an extreme case of bad performance (most likely > related to a not-so-great disk), I have found a variety of cases in > which XFS blocks. To find those, I have used perf record -e > sched:sched_switch -p , and I am attaching the perf report > as xfs-sched_switch.log. Please note that this doesn't tell me for how > long we block, but as mentioned before, blocking operations outside > our control are detrimental to us regardless of the elapsed time. > > For those who are not acquainted to our internals, please ignore > everything in that file but the xfs functions. For the xfs symbols, > there are two kinds of events: the ones that are a children of > io_submit, where we don't tolerate blocking, and the ones that are > children of our helper IO thread, to where we push big operations that > we know will block until we can get rid of them all. We care about the > former and ignore the latter. > > Please allow me to ask you a couple of questions about those findings. > If we are doing anything wrong, advise on best practices is truly > welcome. > > 1) xfs_buf_lock -> xfs_log_force. > > I've started wondering what would make xfs_log_force sleep. But then I > have noticed that xfs_log_force will only be called when a buffer is > marked stale. Most of the times a buffer is marked stale seems to be > due to errors. Although that is not my case (more on that), it got me > thinking that maybe the right thing to do would be to avoid hitting > this case altogether? The buffer is stale because it has recently been freed, and we cannot re-use it until the transaction that freed it has been committed to the journal. e.g. this trace: --3.15%-- _xfs_log_force xfs_log_force xfs_buf_lock _xfs_buf_find xfs_buf_get_map xfs_trans_get_buf_map xfs_btree_get_bufl xfs_bmap_extents_to_btree xfs_bmap_add_extent_hole_real xfs_bmapi_write xfs_iomap_write_direct __xfs_get_blocks xfs_get_blocks_direct do_blockdev_direct_IO __blockdev_direct_IO xfs_vm_direct_IO xfs_file_dio_aio_write xfs_file_write_iter aio_run_iocb do_io_submit sys_io_submit entry_SYSCALL_64_fastpath io_submit 0x46d98a implies something like this has happened: truncate free extent extent list now fits inline in inode btree-to-extent format change free last bmbt block X mark block contents stale add block to busy extent list place block on AGFL AIO write allocate extent inline extents full extent-to-btree conversion allocate bmbt block grab block X from free list get locked buffer for block X xfs_buf_lock buffer stale log force to commit previous free transaction to disk ..... log force completes buffer removed from busy extent list buffer no longer stale add bmbt record to new block update btree indexes .... And, looking at the trace you attached, we see this: dump_stack xfs_buf_stale xfs_trans_binval xfs_bmap_btree_to_extents <<<<<<<<< xfs_bunmapi xfs_itruncate_extents So I'd say this is a pretty clear indication that we're immediately recycling freed blocks from the free list here.... > The file example-stale.txt contains a backtrace of the case where we > are being marked as stale. It seems to be happening when we convert > the the inode's extents from unwritten to real. Can this case be > avoided? I won't pretend I know the intricacies of this, but couldn't > we be keeping extents from the very beginning to avoid creating stale > buffers? > > 2) xfs_buf_lock -> down > This is one I truly don't understand. What can be causing contention > in this lock? We never have two different cores writing to the same > buffer, nor should we have the same core doingCAP_FOWNER so. As Brian pointed out, this is probably AGF or AGI contention - attempting to allocate/free extents or inodes in the same AG at the same time will show this sort of pattern. This trace shows AGF contention: down xfs_buf_lock _xfs_buf_find xfs_buf_get_map xfs_buf_read_map xfs_trans_read_buf_map xfs_read_agf ..... This trace shows AGI contention: down xfs_buf_lock _xfs_buf_find xfs_buf_get_map xfs_buf_read_map xfs_trans_read_buf_map xfs_read_agi .... > 3) xfs_file_aio_write_checks -> file_update_time -> xfs_vn_update_time This trace?: rwsem_down_write_failed call_rwsem_down_write_failed xfs_ilock xfs_vn_update_time file_update_time xfs_file_aio_write_checks xfs_file_dio_aio_write xfs_file_write_iter aio_run_iocb do_io_submit sys_io_submit entry_SYSCALL_64_fastpath io_submit 0x46d98a Which is an mtime timestamp update racing with another operation that takes the internal metadata lock (e.g. block mapping/allocation for that inode). > You guys seem to have an interface to avoid that, by setting the > FMODE_NOCMTIME flag. We've talked about exposing this through open() for Ceph. http://www.kernelhub.org/?p=2&msg=744325 https://lkml.org/lkml/2015/5/15/671 Read the first thread for why it's problematic to expose this to userspace - I won't repeat it all here. As it is, there was some code recently hacked into ext4 to reduce mtime overhead - the MS_LAZYTIME superblock option. What it does it prevent the inode from being marked dirty when timestamps are updated and hence the timestamps are never journalled or written until something else marks the inode metadata dirty (e.g. block allocation). ext4 gets away with this because it doesn't actually journal timestamp changes - they get captured in the journal by other modifications that are journalled, but still rely on the inod being marked dirty for fsync, writeback and inode cache eviction doing the right thing. The ext4 implementation looks like the timestamp updates can be thrown away, as the inodes are not marked dirty and so on memory pressure they will simply be reclaimed without writing back the updated timestamps that are held in memory. I suspect fsync will also have problems on ext4 as the inode is not metadata dirty or journalled, and hence the timestamp changes will never get written back. And, IMO, the worst part of the ext4 implementation is that the inode buffer writeback code in ext4 now checks to see if any of the other inodes in the buffer being written back need to have their inode timestamps updated. IOWs, ext4 now does writeback of /unjournalled metadata/ to inodes that are purely timestamp dirty. We /used/ to do shit like this in XFS. We got rid of it in preference of journalling everything because the corner cases in log recovery meant that after a crash the inodes were in inconsistent states, and that meant we had unexpected, unpredictable recovery behaviour where files weren't the expected size and/or didn't contain the expected data. Hence going back to the bad old days of hacking around the journal "for speed" doesn't exactly fill me with joy. Let me have a think about how we can implement lazytime in a sane way, such that fsync() works correctly, we don't throw away timstamp changes in memory reclaim and we don't write unlogged changes to the on-disk locations.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Nov 30 17:44:46 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 533F729DF5 for ; Mon, 30 Nov 2015 17:44:46 -0600 (CST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 36A788F8033 for ; Mon, 30 Nov 2015 15:44:43 -0800 (PST) X-ASG-Debug-ID: 1448927079-04cbb0605b2dc9e0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 2Y1He44WXHTGyfSS for ; Mon, 30 Nov 2015 15:44:40 -0800 (PST) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2AMCQBh3lxW/1bELHlegzuBQoJhqEAGiz+JPoYJAgIBAQKBN00BAQEBAQGBC4Q0AQEBAwE6HCMFCwgDDgoJDBkPBSUDIROIJge8GAEBAQcCASAZhXSFRYQ0ZoQfBZZXjS+BZIdokx5jghEdgWoqNIQngUoBAQE Received: from ppp121-44-196-86.lns20.syd7.internode.on.net (HELO dastard) ([121.44.196.86]) by ipmail07.adl2.internode.on.net with ESMTP; 01 Dec 2015 10:14:39 +1030 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1a3Y7O-0006ty-B0; Tue, 01 Dec 2015 10:44:26 +1100 Date: Tue, 1 Dec 2015 10:44:26 +1100 From: Dave Chinner To: Lutz Vieweg Cc: xfs@oss.sgi.com Subject: Re: Does XFS support cgroup writeback limiting? Message-ID: <20151130234426.GP26718@dastard> X-ASG-Orig-Subj: Re: Does XFS support cgroup writeback limiting? References: <5652F311.7000406@5t9.de> <20151123202619.GE26718@dastard> <56538E6A.6030203@5t9.de> <20151123232052.GI26718@dastard> <5655FDDA.9050502@5t9.de> <20151125213500.GK26718@dastard> <565B70F9.8060707@5t9.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <565B70F9.8060707@5t9.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1448927079 X-Barracuda-URL: https://192.48.176.25:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24861 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Nov 29, 2015 at 10:41:13PM +0100, Lutz Vieweg wrote: > On 11/25/2015 10:35 PM, Dave Chinner wrote: > >>2) Create 3 different XFS filesystem instances on the block > >> device, one for access by only the "good" processes, > >> on for access by only the "evil" processes, one for > >> shared access by at least two "good" and two "evil" > >> processes. > > > >Why do you need multiple filesystems? The writeback throttling is > >designed to work within a single filesystem... > > Hmm. Previously, I thought that the limiting of buffered writes > was realized by keeping track of the owners of dirty pages, and > that filesystem support was just required to make sure that writing > via a filesystem did not "anonymize" the dirty data. From what > I had read in blkio-controller.txt it seemed evident that limitations > would be accounted for "per block device", not "per filesystem", and > options like > >echo ": " > /cgrp/blkio.throttle.read_bps_device > document how to configure limits per block device. > > Now after reading through the new Writeback section of blkio-controller.txt > again I am somewhat confused - the text states > >writeback operates on inode basis > and if that means inodes as in "file system inodes", this would > indeed mean limits would be enforced "per filesystem" - and yet > there are no options documented to specify limits for any specific > filesystem. > > Does this mean some process writing to a block device (not via filesystem) > without "O_DIRECT" will dirty buffer pages, but those will not be limited > (as they are neither synchronous nor via-filesystem writes)? > That would mean VMs sharing some (physical or abstract) block device could > not really be isolated regarding their asynchronous write I/O... You are asking the wrong person - I don't know how this is all supposed to work, how it's supposed to be configured, how different cgroup controllers are supposed to interact, etc. Hence my request for regression tests before we say "XFS supports ...." because without them I have no idea if something is desired/correct behaviour or not... > >Metadata IO not throttled - it is owned by the filesystem and hence > >root cgroup. > > Ouch. That kind of defeats the purpose of limiting evil processes' > ability to DOS other processes. > Wouldn't it be possible to assign some arbitrary cost to meta-data > operations - like "account one page write for each meta-data change No. Think of a file with millions of extents. Just reading a byte of data will require pulling the entire extent map into memory, and so doing hundreds of megabytes of IO and using that much memory. > to the originating process of that change"? While certainly not > allowing for limiting to byte-precise limits of write bandwidth, > this would regain the ability to defend against DOS situations, No, that won't help at all. In fact, it might even introduce new DOS situations where we block a global metadata operation because it doesn't have reservation space and so *everything* stops until that metadata IO is dispatched and completed... > Assume the test instance has lots of memory and would be willing to > spend many Gigabytes of RAM for dirty buffer caches. Most people will be running the tests on machines with limited RAM and disk space, and so the tests really cannot depend on having many multiple gigabytes of RAM available for correct operation.... Indeed, limiting dirty memory thresholds will be part of setting up a predictable, reliable test scenario (e.g. via /proc/sys/vm/dirty_bytes and friends). > (I understand that if one used the absolute "blkio.throttle.write*" options > pressure back could apply before the dirty buffer cache was maxed out, > but in real-world scenarios people will almost always use the relative > "blkio.weight" based limiting, after all, you usually don't want to throttle > processes if there is plenty of bandwidth left no other process wants > at the same time.) Again, I have no idea how the throttling works or is configured, so we need regression tests to cover both (all?) of these sorts of common configuration scenarios. Cheers, Dave. -- Dave Chinner david@fromorbit.com From glommer@cloudius-systems.com Mon Nov 30 17:51:58 2015 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6FB0A29DF5 for ; Mon, 30 Nov 2015 17:51:58 -0600 (CST) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id D6AB3AC004 for ; Mon, 30 Nov 2015 15:51:57 -0800 (PST) X-ASG-Debug-ID: 1448927511-04cb6c535477480001-NocioJ Received: from mail-lf0-f54.google.com (mail-lf0-f54.google.com [209.85.215.54]) by cuda.sgi.com with ESMTP id KuWY9kSL6Rv9f4mJ (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Mon, 30 Nov 2015 15:51:52 -0800 (PST) X-Barracuda-Envelope-From: glommer@cloudius-systems.com X-Barracuda-Apparent-Source-IP: 209.85.215.54 Received: by lffu14 with SMTP id u14so219214240lff.1 for ; Mon, 30 Nov 2015 15:51:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=scylladb-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=M9CgbefNjajh1Q8nfOLYMIKBeyd47IvxpPsZ7WbCh2c=; b=klxeozfxT8ro19QxIwih1uhH8p96Zw20yDWDR0A0purXqcOQ0aCzllrs7Ul6V2eksO r8cNg8ECQETwDqm6E9lHR+340iqR2n/evOdIEnVy5WcLX2KOM1HhlJlaObS1a+7HLqjw 1fonbYdbB2D9O8fhmC4N8Ee8cTfh5E3HPTzFVIy02Vl2g4cXTawpPVFfksj/827Qf4sV K42h19lxtN8RD8wsibRyovMbnOnfVar6Dr+NP0aUyN7s/snhIY2AWv3jPDwDkfl1XBlc /mLX4K8nK9+d/GL9aOImJD1z+xlKhTQuct4aFfL5dPtTYjAdQRZkpxbeVn8iYZwiY7+U oRHw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=M9CgbefNjajh1Q8nfOLYMIKBeyd47IvxpPsZ7WbCh2c=; b=mRLdq88t5wk0IpF6SPWNFyCKcolNrXD/LNpWodlAUx0fUmjEt15eq/jXpnTEbUKjHD xFzCt5VKSkA7/3P/gU2S6yKAgHP8ENIiDsK8/9Bw+uI+GS3mO6e9XW41QEwP4YjGDVpq /Q867PHnzhvjNdQCK5LnbNj9SSBxW99vhFHMfMG6gAgItBfdG8JCzSd3zYmobVhLIakY 0GhgJXWiz/1GDYS96HyVKZh8PajDUujAbo6BMNiExaY+32lcpIouwooKYOLVfnFrVgpf MJ3YOrqPG+hWNZUu81ntrHK6IOgj4+/guIdP+WpeWiw+kDjb+J9+73Tze8Fh0JDKZOZ6 FE2A== X-Gm-Message-State: ALoCoQnBkg6W/X2xNSgetFrZizorwLudQ32F0gZR+K73Byy45NJmWP9hWnE6Kr1kXsysZfZyQdrU MIME-Version: 1.0 X-Received: by 10.112.36.130 with SMTP id q2mr27083280lbj.24.1448927511270; Mon, 30 Nov 2015 15:51:51 -0800 (PST) Received: by 10.25.205.133 with HTTP; Mon, 30 Nov 2015 15:51:51 -0800 (PST) In-Reply-To: <20151130231027.GO26718@dastard> References: <20151130231027.GO26718@dastard> Date: Mon, 30 Nov 2015 18:51:51 -0500 Message-ID: Subject: Re: sleeps and waits during io_submit From: Glauber Costa X-ASG-Orig-Subj: Re: sleeps and waits during io_submit To: Dave Chinner Cc: xfs@oss.sgi.com, Avi Kivity Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-lf0-f54.google.com[209.85.215.54] X-Barracuda-Start-Time: 1448927512 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://192.48.176.15:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-BRTS-Evidence: kernelhub.org X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.24862 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Hi Dave On Mon, Nov 30, 2015 at 6:10 PM, Dave Chinner wrote: > On Fri, Nov 27, 2015 at 09:43:50PM -0500, Glauber Costa wrote: >> Hello my dear XFSers, >> >> For those of you who don't know, we at ScyllaDB produce a modern NoSQL >> data store that, at the moment, runs on top of XFS only. We deal >> exclusively with asynchronous and direct IO, due to our >> thread-per-core architecture. Due to that, we avoid issuing any >> operation that will sleep. >> >> While debugging an extreme case of bad performance (most likely >> related to a not-so-great disk), I have found a variety of cases in >> which XFS blocks. To find those, I have used perf record -e >> sched:sched_switch -p , and I am attaching the perf report >> as xfs-sched_switch.log. Please note that this doesn't tell me for how >> long we block, but as mentioned before, blocking operations outside >> our control are detrimental to us regardless of the elapsed time. >> >> For those who are not acquainted to our internals, please ignore >> everything in that file but the xfs functions. For the xfs symbols, >> there are two kinds of events: the ones that are a children of >> io_submit, where we don't tolerate blocking, and the ones that are >> children of our helper IO thread, to where we push big operations that >> we know will block until we can get rid of them all. We care about the >> former and ignore the latter. >> >> Please allow me to ask you a couple of questions about those findings. >> If we are doing anything wrong, advise on best practices is truly >> welcome. >> >> 1) xfs_buf_lock -> xfs_log_force. >> >> I've started wondering what would make xfs_log_force sleep. But then I >> have noticed that xfs_log_force will only be called when a buffer is >> marked stale. Most of the times a buffer is marked stale seems to be >> due to errors. Although that is not my case (more on that), it got me >> thinking that maybe the right thing to do would be to avoid hitting >> this case altogether? > > The buffer is stale because it has recently been freed, and we > cannot re-use it until the transaction that freed it has been > committed to the journal. e.g. this trace: > > --3.15%-- _xfs_log_force > xfs_log_force > xfs_buf_lock > _xfs_buf_find > xfs_buf_get_map > xfs_trans_get_buf_map > xfs_btree_get_bufl > xfs_bmap_extents_to_btree > xfs_bmap_add_extent_hole_real > xfs_bmapi_write > xfs_iomap_write_direct > __xfs_get_blocks > xfs_get_blocks_direct > do_blockdev_direct_IO > __blockdev_direct_IO > xfs_vm_direct_IO > xfs_file_dio_aio_write > xfs_file_write_iter > aio_run_iocb > do_io_submit > sys_io_submit > entry_SYSCALL_64_fastpath > io_submit > 0x46d98a > > implies something like this has happened: > > truncate > free extent > extent list now fits inline in inode > btree-to-extent format change > free last bmbt block X > mark block contents stale > add block to busy extent list > place block on AGFL > > AIO write > allocate extent > inline extents full > extent-to-btree conversion > allocate bmbt block > grab block X from free list > get locked buffer for block X > xfs_buf_lock > buffer stale > log force to commit previous free transaction to disk > ..... > log force completes > buffer removed from busy extent list > buffer no longer stale > add bmbt record to new block > update btree indexes > .... > > > And, looking at the trace you attached, we see this: > > dump_stack > xfs_buf_stale > xfs_trans_binval > xfs_bmap_btree_to_extents <<<<<<<<< > xfs_bunmapi > xfs_itruncate_extents > > So I'd say this is a pretty clear indication that we're immediately > recycling freed blocks from the free list here.... > >> The file example-stale.txt contains a backtrace of the case where we >> are being marked as stale. It seems to be happening when we convert >> the the inode's extents from unwritten to real. Can this case be >> avoided? I won't pretend I know the intricacies of this, but couldn't >> we be keeping extents from the very beginning to avoid creating stale >> buffers? >> >> 2) xfs_buf_lock -> down >> This is one I truly don't understand. What can be causing contention >> in this lock? We never have two different cores writing to the same >> buffer, nor should we have the same core doingCAP_FOWNER so. > > As Brian pointed out, this is probably AGF or AGI contention - > attempting to allocate/free extents or inodes in the same AG at the > same time will show this sort of pattern. This trace shows AGF > contention: > > down > xfs_buf_lock > _xfs_buf_find > xfs_buf_get_map > xfs_buf_read_map > xfs_trans_read_buf_map > xfs_read_agf > ..... > > This trace shows AGI contention: > > down > xfs_buf_lock > _xfs_buf_find > xfs_buf_get_map > xfs_buf_read_map > xfs_trans_read_buf_map > xfs_read_agi > .... > Great. I will take a look at how can we mitigate those on our side. I will need some time to understand all of that better, so for now I'd just leave you guys with a big thank you. >> 3) xfs_file_aio_write_checks -> file_update_time -> xfs_vn_update_time > > This trace?: > > rwsem_down_write_failed > call_rwsem_down_write_failed > xfs_ilock > xfs_vn_update_time > file_update_time > xfs_file_aio_write_checks > xfs_file_dio_aio_write > xfs_file_write_iter > aio_run_iocb > do_io_submit > sys_io_submit > entry_SYSCALL_64_fastpath > io_submit > 0x46d98a > > Which is an mtime timestamp update racing with another operation > that takes the internal metadata lock (e.g. block mapping/allocation > for that inode). > >> You guys seem to have an interface to avoid that, by setting the >> FMODE_NOCMTIME flag. > > We've talked about exposing this through open() for Ceph. > > http://www.kernelhub.org/?p=2&msg=744325 > https://lkml.org/lkml/2015/5/15/671 > > Read the first thread for why it's problematic to expose this to > userspace - I won't repeat it all here. > > As it is, there was some code recently hacked into ext4 to reduce > mtime overhead - the MS_LAZYTIME superblock option. What it does it > prevent the inode from being marked dirty when timestamps are > updated and hence the timestamps are never journalled or written > until something else marks the inode metadata dirty (e.g. block > allocation). ext4 gets away with this because it doesn't actually > journal timestamp changes - they get captured in the journal by > other modifications that are journalled, but still rely on the inod > being marked dirty for fsync, writeback and inode cache eviction > doing the right thing. > > The ext4 implementation looks like the timestamp updates can be > thrown away, as the inodes are not marked dirty and so on memory > pressure they will simply be reclaimed without writing back the > updated timestamps that are held in memory. I suspect fsync will > also have problems on ext4 as the inode is not metadata dirty or > journalled, and hence the timestamp changes will never get written > back. > > And, IMO, the worst part of the ext4 implementation is that the > inode buffer writeback code in ext4 now checks to see if any of the > other inodes in the buffer being written back need to have their > inode timestamps updated. IOWs, ext4 now does writeback of > /unjournalled metadata/ to inodes that are purely timestamp dirty. > > We /used/ to do shit like this in XFS. We got rid of it in > preference of journalling everything because the corner cases in log > recovery meant that after a crash the inodes were in inconsistent > states, and that meant we had unexpected, unpredictable recovery > behaviour where files weren't the expected size and/or didn't > contain the expected data. Hence going back to the bad old days of > hacking around the journal "for speed" doesn't exactly fill me with > joy. > > Let me have a think about how we can implement lazytime in a sane > way, such that fsync() works correctly, we don't throw away > timstamp changes in memory reclaim and we don't write unlogged > changes to the on-disk locations.... I trust you fully for matters related to speed. Keep in mind, though, that at least for us the fact that it blocks is a lot worse than the fact that it is slow. We can work around slow, but blocking basically means that we won't have any more work to push - since we don't do threading. The processor that stales just sits idle until the lock is released. So any non-blocking solution to this would already be a win for us. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com